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```javascript
// Thanks to path_to_url
class TributeSearch {
constructor(tribute) {
this.tribute = tribute
this.tribute.search = this
}
simpleFilter(pattern, array) {
return array.filter(string => {
return this.test(pattern, string)
})
}
test(pattern, string) {
return this.match(pattern, string) !== null
}
match(pattern, string, opts) {
opts = opts || {}
let patternIdx = 0,
result = [],
len = string.length,
totalScore = 0,
currScore = 0,
pre = opts.pre || '',
post = opts.post || '',
compareString = opts.caseSensitive && string || string.toLowerCase(),
ch, compareChar
if (opts.skip) {
return {rendered: string, score: 0}
}
pattern = opts.caseSensitive && pattern || pattern.toLowerCase()
let patternCache = this.traverse(compareString, pattern, 0, 0, [])
if (!patternCache) {
return null
}
return {
rendered: this.render(string, patternCache.cache, pre, post),
score: patternCache.score
}
}
traverse(string, pattern, stringIndex, patternIndex, patternCache) {
if (this.tribute.autocompleteSeparator) {
// if the pattern search at end
pattern = pattern.split(this.tribute.autocompleteSeparator).splice(-1)[0];
}
if (pattern.length === patternIndex) {
// calculate score and copy the cache containing the indices where it's found
return {
score: this.calculateScore(patternCache),
cache: patternCache.slice()
}
}
// if string at end or remaining pattern > remaining string
if (string.length === stringIndex || pattern.length - patternIndex > string.length - stringIndex) {
return undefined
}
let c = pattern[patternIndex]
let index = string.indexOf(c, stringIndex)
let best, temp
while (index > -1) {
patternCache.push(index)
temp = this.traverse(string, pattern, index + 1, patternIndex + 1, patternCache)
patternCache.pop()
// if downstream traversal failed, return best answer so far
if (!temp) {
return best
}
if (!best || best.score < temp.score) {
best = temp
}
index = string.indexOf(c, index + 1)
}
return best
}
calculateScore(patternCache) {
let score = 0
let temp = 1
patternCache.forEach((index, i) => {
if (i > 0) {
if (patternCache[i - 1] + 1 === index) {
temp += temp + 1
}
else {
temp = 1
}
}
score += temp
})
return score
}
render(string, indices, pre, post) {
var rendered = string.substring(0, indices[0])
indices.forEach((index, i) => {
rendered += pre + string[index] + post +
string.substring(index + 1, (indices[i + 1]) ? indices[i + 1] : string.length)
})
return rendered
}
filter(pattern, arr, opts) {
opts = opts || {}
return arr
.reduce((prev, element, idx, arr) => {
let str = element
if (opts.extract) {
str = opts.extract(element)
if (!str) { // take care of undefineds / nulls / etc.
str = ''
}
}
let rendered = this.match(pattern, str, opts)
if (rendered != null) {
prev[prev.length] = {
string: rendered.rendered,
score: rendered.score,
index: idx,
original: element
}
}
return prev
}, [])
.sort((a, b) => {
let compare = b.score - a.score
if (compare) return compare
return a.index - b.index
})
}
}
export default TributeSearch;
```
|
/content/code_sandbox/src/TributeSearch.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 899
|
```javascript
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```
|
/content/code_sandbox/test/libs/jquery-1.10.2.min.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 31,238
|
```javascript
// Thanks to path_to_url
import "./utils";
class TributeRange {
constructor(tribute) {
this.tribute = tribute
this.tribute.range = this
}
getDocument() {
let iframe
if (this.tribute.current.collection) {
iframe = this.tribute.current.collection.iframe
}
if (!iframe) {
return document
}
return iframe.contentWindow.document
}
positionMenuAtCaret(scrollTo) {
let context = this.tribute.current,
coordinates
let info = this.getTriggerInfo(false, this.tribute.hasTrailingSpace, true, this.tribute.allowSpaces, this.tribute.autocompleteMode)
if (typeof info !== 'undefined') {
if(!this.tribute.positionMenu){
this.tribute.menu.style.cssText = `display: block;`
return
}
if (!this.isContentEditable(context.element)) {
coordinates = this.getTextAreaOrInputUnderlinePosition(this.tribute.current.element,
info.mentionPosition)
}
else {
coordinates = this.getContentEditableCaretPosition(info.mentionPosition)
}
this.tribute.menu.style.cssText = `top: ${coordinates.top}px;
left: ${coordinates.left}px;
right: ${coordinates.right}px;
bottom: ${coordinates.bottom}px;
max-height: ${coordinates.maxHeight || 500}px;
max-width: ${coordinates.maxWidth || 300}px;
position: ${coordinates.position || 'absolute'};
display: block;`
if (coordinates.left === 'auto') {
this.tribute.menu.style.left = 'auto'
}
if (coordinates.top === 'auto') {
this.tribute.menu.style.top = 'auto'
}
if (scrollTo) this.scrollIntoView()
} else {
this.tribute.menu.style.cssText = 'display: none'
}
}
get menuContainerIsBody() {
return this.tribute.menuContainer === document.body || !this.tribute.menuContainer;
}
selectElement(targetElement, path, offset) {
let range
let elem = targetElement
if (path) {
for (var i = 0; i < path.length; i++) {
elem = elem.childNodes[path[i]]
if (elem === undefined) {
return
}
while (elem.length < offset) {
offset -= elem.length
elem = elem.nextSibling
}
if (elem.childNodes.length === 0 && !elem.length) {
elem = elem.previousSibling
}
}
}
let sel = this.getWindowSelection()
range = this.getDocument().createRange()
range.setStart(elem, offset)
range.setEnd(elem, offset)
range.collapse(true)
try {
sel.removeAllRanges()
} catch (error) {}
sel.addRange(range)
targetElement.focus()
}
replaceTriggerText(text, requireLeadingSpace, hasTrailingSpace, originalEvent, item) {
let info = this.getTriggerInfo(true, hasTrailingSpace, requireLeadingSpace, this.tribute.allowSpaces, this.tribute.autocompleteMode)
if (info !== undefined) {
let context = this.tribute.current
let replaceEvent = new CustomEvent('tribute-replaced', {
detail: {
item: item,
instance: context,
context: info,
event: originalEvent,
}
})
if (!this.isContentEditable(context.element)) {
let myField = this.tribute.current.element
let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'
? this.tribute.replaceTextSuffix
: ' '
text += textSuffix
let startPos = info.mentionPosition
let endPos = info.mentionPosition + info.mentionText.length + (textSuffix === '' ? 1 : textSuffix.length)
if (!this.tribute.autocompleteMode) {
endPos += info.mentionTriggerChar.length - 1
}
myField.value = myField.value.substring(0, startPos) + text +
myField.value.substring(endPos, myField.value.length)
myField.selectionStart = startPos + text.length
myField.selectionEnd = startPos + text.length
} else {
// add a space to the end of the pasted text
let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'
? this.tribute.replaceTextSuffix
: '\xA0'
text += textSuffix
let endPos = info.mentionPosition + info.mentionText.length
if (!this.tribute.autocompleteMode) {
endPos += info.mentionTriggerChar.length
}
this.pasteHtml(text, info.mentionPosition, endPos)
}
context.element.dispatchEvent(new CustomEvent('input', { bubbles: true }))
context.element.dispatchEvent(replaceEvent)
}
}
pasteHtml(html, startPos, endPos) {
let range, sel
sel = this.getWindowSelection()
range = this.getDocument().createRange()
range.setStart(sel.anchorNode, startPos)
range.setEnd(sel.anchorNode, endPos)
range.deleteContents()
let el = this.getDocument().createElement('div')
el.innerHTML = html
let frag = this.getDocument().createDocumentFragment(),
node, lastNode
while ((node = el.firstChild)) {
lastNode = frag.appendChild(node)
}
range.insertNode(frag)
// Preserve the selection
if (lastNode) {
range = range.cloneRange()
range.setStartAfter(lastNode)
range.collapse(true)
sel.removeAllRanges()
sel.addRange(range)
}
}
getWindowSelection() {
if (this.tribute.collection.iframe) {
return this.tribute.collection.iframe.contentWindow.getSelection()
}
return window.getSelection()
}
getNodePositionInParent(element) {
if (element.parentNode === null) {
return 0
}
for (var i = 0; i < element.parentNode.childNodes.length; i++) {
let node = element.parentNode.childNodes[i]
if (node === element) {
return i
}
}
}
getContentEditableSelectedPath(ctx) {
let sel = this.getWindowSelection()
let selected = sel.anchorNode
let path = []
let offset
if (selected != null) {
let i
let ce = selected.contentEditable
while (selected !== null && ce !== 'true') {
i = this.getNodePositionInParent(selected)
path.push(i)
selected = selected.parentNode
if (selected !== null) {
ce = selected.contentEditable
}
}
path.reverse()
// getRangeAt may not exist, need alternative
offset = sel.getRangeAt(0).startOffset
return {
selected: selected,
path: path,
offset: offset
}
}
}
getTextPrecedingCurrentSelection() {
let context = this.tribute.current,
text = ''
if (!this.isContentEditable(context.element)) {
let textComponent = this.tribute.current.element;
if (textComponent) {
let startPos = textComponent.selectionStart
if (textComponent.value && startPos >= 0) {
text = textComponent.value.substring(0, startPos)
}
}
} else {
let selectedElem = this.getWindowSelection().anchorNode
if (selectedElem != null) {
let workingNodeContent = selectedElem.textContent
let selectStartOffset = this.getWindowSelection().getRangeAt(0).startOffset
if (workingNodeContent && selectStartOffset >= 0) {
text = workingNodeContent.substring(0, selectStartOffset)
}
}
}
return text
}
getLastWordInText(text) {
var wordsArray;
if (this.tribute.autocompleteSeparator) {
wordsArray = text.split(this.tribute.autocompleteSeparator);
} else {
wordsArray = text.split(/\s+/);
}
var wordsCount = wordsArray.length - 1;
return wordsArray[wordsCount];
}
getTriggerInfo(menuAlreadyActive, hasTrailingSpace, requireLeadingSpace, allowSpaces, isAutocomplete) {
let ctx = this.tribute.current
let selected, path, offset
if (!this.isContentEditable(ctx.element)) {
selected = this.tribute.current.element
} else {
let selectionInfo = this.getContentEditableSelectedPath(ctx)
if (selectionInfo) {
selected = selectionInfo.selected
path = selectionInfo.path
offset = selectionInfo.offset
}
}
let effectiveRange = this.getTextPrecedingCurrentSelection()
let lastWordOfEffectiveRange = this.getLastWordInText(effectiveRange)
if (isAutocomplete) {
return {
mentionPosition: effectiveRange.length - lastWordOfEffectiveRange.length,
mentionText: lastWordOfEffectiveRange,
mentionSelectedElement: selected,
mentionSelectedPath: path,
mentionSelectedOffset: offset
}
}
if (effectiveRange !== undefined && effectiveRange !== null) {
let mostRecentTriggerCharPos = -1
let triggerChar
this.tribute.collection.forEach(config => {
let c = config.trigger
let idx = config.requireLeadingSpace ?
this.lastIndexWithLeadingSpace(effectiveRange, c) :
effectiveRange.lastIndexOf(c)
if (idx > mostRecentTriggerCharPos) {
mostRecentTriggerCharPos = idx
triggerChar = c
requireLeadingSpace = config.requireLeadingSpace
}
})
if (mostRecentTriggerCharPos >= 0 &&
(
mostRecentTriggerCharPos === 0 ||
!requireLeadingSpace ||
/\s/.test(
effectiveRange.substring(
mostRecentTriggerCharPos - 1,
mostRecentTriggerCharPos)
)
)
) {
let currentTriggerSnippet = effectiveRange.substring(mostRecentTriggerCharPos + triggerChar.length,
effectiveRange.length)
triggerChar = effectiveRange.substring(mostRecentTriggerCharPos, mostRecentTriggerCharPos + triggerChar.length)
let firstSnippetChar = currentTriggerSnippet.substring(0, 1)
let leadingSpace = currentTriggerSnippet.length > 0 &&
(
firstSnippetChar === ' ' ||
firstSnippetChar === '\xA0'
)
if (hasTrailingSpace) {
currentTriggerSnippet = currentTriggerSnippet.trim()
}
let regex = allowSpaces ? /[^\S ]/g : /[\xA0\s]/g;
this.tribute.hasTrailingSpace = regex.test(currentTriggerSnippet);
if (!leadingSpace && (menuAlreadyActive || !(regex.test(currentTriggerSnippet)))) {
return {
mentionPosition: mostRecentTriggerCharPos,
mentionText: currentTriggerSnippet,
mentionSelectedElement: selected,
mentionSelectedPath: path,
mentionSelectedOffset: offset,
mentionTriggerChar: triggerChar
}
}
}
}
}
lastIndexWithLeadingSpace (str, trigger) {
let reversedStr = str.split('').reverse().join('')
let index = -1
for (let cidx = 0, len = str.length; cidx < len; cidx++) {
let firstChar = cidx === str.length - 1
let leadingSpace = /\s/.test(reversedStr[cidx + 1])
let match = true
for (let triggerIdx = trigger.length - 1; triggerIdx >= 0; triggerIdx--) {
if (trigger[triggerIdx] !== reversedStr[cidx-triggerIdx]) {
match = false
break
}
}
if (match && (firstChar || leadingSpace)) {
index = str.length - 1 - cidx
break
}
}
return index
}
isContentEditable(element) {
return element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA'
}
isMenuOffScreen(coordinates, menuDimensions) {
let windowWidth = window.innerWidth
let windowHeight = window.innerHeight
let doc = document.documentElement
let windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0)
let windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0)
let menuTop = typeof coordinates.top === 'number' ? coordinates.top : windowTop + windowHeight - coordinates.bottom - menuDimensions.height
let menuRight = typeof coordinates.right === 'number' ? coordinates.right : coordinates.left + menuDimensions.width
let menuBottom = typeof coordinates.bottom === 'number' ? coordinates.bottom : coordinates.top + menuDimensions.height
let menuLeft = typeof coordinates.left === 'number' ? coordinates.left : windowLeft + windowWidth - coordinates.right - menuDimensions.width
return {
top: menuTop < Math.floor(windowTop),
right: menuRight > Math.ceil(windowLeft + windowWidth),
bottom: menuBottom > Math.ceil(windowTop + windowHeight),
left: menuLeft < Math.floor(windowLeft)
}
}
getMenuDimensions() {
// Width of the menu depends of its contents and position
// We must check what its width would be without any obstruction
// This way, we can achieve good positioning for flipping the menu
let dimensions = {
width: null,
height: null
}
this.tribute.menu.style.cssText = `top: 0px;
left: 0px;
position: fixed;
display: block;
visibility; hidden;
max-height:500px;`
dimensions.width = this.tribute.menu.offsetWidth
dimensions.height = this.tribute.menu.offsetHeight
this.tribute.menu.style.cssText = `display: none;`
return dimensions
}
getTextAreaOrInputUnderlinePosition(element, position, flipped) {
let properties = ['direction', 'boxSizing', 'width', 'height', 'overflowX',
'overflowY', 'borderTopWidth', 'borderRightWidth',
'borderBottomWidth', 'borderLeftWidth', 'borderStyle', 'paddingTop',
'paddingRight', 'paddingBottom', 'paddingLeft',
'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch',
'fontSize', 'fontSizeAdjust', 'lineHeight', 'fontFamily',
'textAlign', 'textTransform', 'textIndent',
'textDecoration', 'letterSpacing', 'wordSpacing'
]
let isFirefox = (window.mozInnerScreenX !== null)
let div = this.getDocument().createElement('div')
div.id = 'input-textarea-caret-position-mirror-div'
this.getDocument().body.appendChild(div)
let style = div.style
let computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle
style.whiteSpace = 'pre-wrap'
if (element.nodeName !== 'INPUT') {
style.wordWrap = 'break-word'
}
style.position = 'absolute'
style.visibility = 'hidden'
// transfer the element's properties to the div
properties.forEach(prop => {
style[prop] = computed[prop]
})
//NOT SURE WHY THIS IS HERE AND IT DOESNT SEEM HELPFUL
// if (isFirefox) {
// style.width = `${(parseInt(computed.width) - 2)}px`
// if (element.scrollHeight > parseInt(computed.height))
// style.overflowY = 'scroll'
// } else {
// style.overflow = 'hidden'
// }
let span0 = document.createElement('span')
span0.textContent = element.value.substring(0, position)
div.appendChild(span0)
if (element.nodeName === 'INPUT') {
div.textContent = div.textContent.replace(/\s/g, '')
}
//Create a span in the div that represents where the cursor
//should be
let span = this.getDocument().createElement('span')
//we give it no content as this represents the cursor
span.textContent = '​'
div.appendChild(span)
let span2 = this.getDocument().createElement('span');
span2.textContent = element.value.substring(position);
div.appendChild(span2);
let rect = element.getBoundingClientRect()
//position the div exactly over the element
//so we can get the bounding client rect for the span and
//it should represent exactly where the cursor is
div.style.position = 'fixed';
div.style.left = rect.left + 'px';
div.style.top = rect.top + 'px';
div.style.width = rect.width + 'px';
div.style.height = rect.height + 'px';
div.scrollTop = element.scrollTop;
var spanRect = span.getBoundingClientRect();
this.getDocument().body.removeChild(div)
return this.getFixedCoordinatesRelativeToRect(spanRect);
}
getContentEditableCaretPosition(selectedNodePosition) {
let range
let sel = this.getWindowSelection()
range = this.getDocument().createRange()
range.setStart(sel.anchorNode, selectedNodePosition)
range.setEnd(sel.anchorNode, selectedNodePosition)
range.collapse(false)
let rect = range.getBoundingClientRect()
return this.getFixedCoordinatesRelativeToRect(rect);
}
getFixedCoordinatesRelativeToRect(rect) {
let coordinates = {
position: 'fixed',
left: rect.left,
top: rect.top + rect.height
}
let menuDimensions = this.getMenuDimensions()
var availableSpaceOnTop = rect.top;
var availableSpaceOnBottom = window.innerHeight - (rect.top + rect.height);
//check to see where's the right place to put the menu vertically
if (availableSpaceOnBottom < menuDimensions.height) {
if (availableSpaceOnTop >= menuDimensions.height || availableSpaceOnTop > availableSpaceOnBottom) {
coordinates.top = 'auto';
coordinates.bottom = window.innerHeight - rect.top;
if (availableSpaceOnBottom < menuDimensions.height) {
coordinates.maxHeight = availableSpaceOnTop;
}
} else {
if (availableSpaceOnTop < menuDimensions.height) {
coordinates.maxHeight = availableSpaceOnBottom;
}
}
}
var availableSpaceOnLeft = rect.left;
var availableSpaceOnRight = window.innerWidth - rect.left;
//check to see where's the right place to put the menu horizontally
if (availableSpaceOnRight < menuDimensions.width) {
if (availableSpaceOnLeft >= menuDimensions.width || availableSpaceOnLeft > availableSpaceOnRight) {
coordinates.left = 'auto';
coordinates.right = window.innerWidth - rect.left;
if (availableSpaceOnRight < menuDimensions.width) {
coordinates.maxWidth = availableSpaceOnLeft;
}
} else {
if (availableSpaceOnLeft < menuDimensions.width) {
coordinates.maxWidth = availableSpaceOnRight;
}
}
}
return coordinates
}
scrollIntoView(elem) {
let reasonableBuffer = 20,
clientRect
let maxScrollDisplacement = 100
let e = this.menu
if (typeof e === 'undefined') return;
while (clientRect === undefined || clientRect.height === 0) {
clientRect = e.getBoundingClientRect()
if (clientRect.height === 0) {
e = e.childNodes[0]
if (e === undefined || !e.getBoundingClientRect) {
return
}
}
}
let elemTop = clientRect.top
let elemBottom = elemTop + clientRect.height
if (elemTop < 0) {
window.scrollTo(0, window.pageYOffset + clientRect.top - reasonableBuffer)
} else if (elemBottom > window.innerHeight) {
let maxY = window.pageYOffset + clientRect.top - reasonableBuffer
if (maxY - window.pageYOffset > maxScrollDisplacement) {
maxY = window.pageYOffset + maxScrollDisplacement
}
let targetY = window.pageYOffset - (window.innerHeight - elemBottom)
if (targetY > maxY) {
targetY = maxY
}
window.scrollTo(0, targetY)
}
}
}
export default TributeRange;
```
|
/content/code_sandbox/src/TributeRange.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 4,294
|
```javascript
class TributeMenuEvents {
constructor(tribute) {
this.tribute = tribute;
this.tribute.menuEvents = this;
this.menu = this.tribute.menu;
}
bind(menu) {
this.menuClickEvent = this.tribute.events.click.bind(null, this);
this.menuContainerScrollEvent = this.debounce(
() => {
if (this.tribute.isActive) {
this.tribute.hideMenu();
}
},
10,
false
);
this.windowResizeEvent = this.debounce(
() => {
if (this.tribute.isActive) {
this.tribute.hideMenu();
}
},
10,
false
);
// fixes IE11 issues with mousedown
this.tribute.range
.getDocument()
.addEventListener("MSPointerDown", this.menuClickEvent, false);
this.tribute.range
.getDocument()
.addEventListener("mousedown", this.menuClickEvent, false);
window.addEventListener("resize", this.windowResizeEvent);
if (this.menuContainer) {
this.menuContainer.addEventListener(
"scroll",
this.menuContainerScrollEvent,
false
);
} else {
window.addEventListener("scroll", this.menuContainerScrollEvent);
}
}
unbind(menu) {
this.tribute.range
.getDocument()
.removeEventListener("mousedown", this.menuClickEvent, false);
this.tribute.range
.getDocument()
.removeEventListener("MSPointerDown", this.menuClickEvent, false);
window.removeEventListener("resize", this.windowResizeEvent);
if (this.menuContainer) {
this.menuContainer.removeEventListener(
"scroll",
this.menuContainerScrollEvent,
false
);
} else {
window.removeEventListener("scroll", this.menuContainerScrollEvent);
}
}
debounce(func, wait, immediate) {
var timeout;
return () => {
var context = this,
args = arguments;
var later = () => {
timeout = null;
if (!immediate) func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
}
}
export default TributeMenuEvents;
```
|
/content/code_sandbox/src/TributeMenuEvents.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 488
|
```javascript
import "./utils";
import TributeEvents from "./TributeEvents";
import TributeMenuEvents from "./TributeMenuEvents";
import TributeRange from "./TributeRange";
import TributeSearch from "./TributeSearch";
class Tribute {
constructor({
values = null,
loadingItemTemplate = null,
iframe = null,
selectClass = "highlight",
containerClass = "tribute-container",
itemClass = "",
trigger = "@",
autocompleteMode = false,
autocompleteSeparator = null,
selectTemplate = null,
menuItemTemplate = null,
lookup = "key",
fillAttr = "value",
collection = null,
menuContainer = null,
noMatchTemplate = null,
requireLeadingSpace = true,
allowSpaces = false,
replaceTextSuffix = null,
positionMenu = true,
spaceSelectsMatch = false,
searchOpts = {},
menuItemLimit = null,
menuShowMinLength = 0
}) {
this.autocompleteMode = autocompleteMode;
this.autocompleteSeparator = autocompleteSeparator;
this.menuSelected = 0;
this.current = {};
this.inputEvent = false;
this.isActive = false;
this.menuContainer = menuContainer;
this.allowSpaces = allowSpaces;
this.replaceTextSuffix = replaceTextSuffix;
this.positionMenu = positionMenu;
this.hasTrailingSpace = false;
this.spaceSelectsMatch = spaceSelectsMatch;
if (this.autocompleteMode) {
trigger = "";
allowSpaces = false;
}
if (values) {
this.collection = [
{
// symbol that starts the lookup
trigger: trigger,
// is it wrapped in an iframe
iframe: iframe,
// class applied to selected item
selectClass: selectClass,
// class applied to the Container
containerClass: containerClass,
// class applied to each item
itemClass: itemClass,
// function called on select that retuns the content to insert
selectTemplate: (
selectTemplate || Tribute.defaultSelectTemplate
).bind(this),
// function called that returns content for an item
menuItemTemplate: (
menuItemTemplate || Tribute.defaultMenuItemTemplate
).bind(this),
// function called when menu is empty, disables hiding of menu.
noMatchTemplate: (t => {
if (typeof t === "string") {
if (t.trim() === "") return null;
return t;
}
if (typeof t === "function") {
return t.bind(this);
}
return (
noMatchTemplate ||
function() {
return "<li>No Match Found!</li>";
}.bind(this)
);
})(noMatchTemplate),
// column to search against in the object
lookup: lookup,
// column that contains the content to insert by default
fillAttr: fillAttr,
// array of objects or a function returning an array of objects
values: values,
// useful for when values is an async function
loadingItemTemplate: loadingItemTemplate,
requireLeadingSpace: requireLeadingSpace,
searchOpts: searchOpts,
menuItemLimit: menuItemLimit,
menuShowMinLength: menuShowMinLength
}
];
} else if (collection) {
if (this.autocompleteMode)
console.warn(
"Tribute in autocomplete mode does not work for collections"
);
this.collection = collection.map(item => {
return {
trigger: item.trigger || trigger,
iframe: item.iframe || iframe,
selectClass: item.selectClass || selectClass,
containerClass: item.containerClass || containerClass,
itemClass: item.itemClass || itemClass,
selectTemplate: (
item.selectTemplate || Tribute.defaultSelectTemplate
).bind(this),
menuItemTemplate: (
item.menuItemTemplate || Tribute.defaultMenuItemTemplate
).bind(this),
// function called when menu is empty, disables hiding of menu.
noMatchTemplate: (t => {
if (typeof t === "string") {
if (t.trim() === "") return null;
return t;
}
if (typeof t === "function") {
return t.bind(this);
}
return (
noMatchTemplate ||
function() {
return "<li>No Match Found!</li>";
}.bind(this)
);
})(noMatchTemplate),
lookup: item.lookup || lookup,
fillAttr: item.fillAttr || fillAttr,
values: item.values,
loadingItemTemplate: item.loadingItemTemplate,
requireLeadingSpace: item.requireLeadingSpace,
searchOpts: item.searchOpts || searchOpts,
menuItemLimit: item.menuItemLimit || menuItemLimit,
menuShowMinLength: item.menuShowMinLength || menuShowMinLength
};
});
} else {
throw new Error("[Tribute] No collection specified.");
}
new TributeRange(this);
new TributeEvents(this);
new TributeMenuEvents(this);
new TributeSearch(this);
}
get isActive() {
return this._isActive;
}
set isActive(val) {
if (this._isActive != val) {
this._isActive = val;
if (this.current.element) {
let noMatchEvent = new CustomEvent(`tribute-active-${val}`);
this.current.element.dispatchEvent(noMatchEvent);
}
}
}
static defaultSelectTemplate(item) {
if (typeof item === "undefined")
return `${this.current.collection.trigger}${this.current.mentionText}`;
if (this.range.isContentEditable(this.current.element)) {
return (
'<span class="tribute-mention">' +
(this.current.collection.trigger +
item.original[this.current.collection.fillAttr]) +
"</span>"
);
}
return (
this.current.collection.trigger +
item.original[this.current.collection.fillAttr]
);
}
static defaultMenuItemTemplate(matchItem) {
return matchItem.string;
}
static inputTypes() {
return ["TEXTAREA", "INPUT"];
}
triggers() {
return this.collection.map(config => {
return config.trigger;
});
}
attach(el) {
if (!el) {
throw new Error("[Tribute] Must pass in a DOM node or NodeList.");
}
// Check if it is a jQuery collection
if (typeof jQuery !== "undefined" && el instanceof jQuery) {
el = el.get();
}
// Is el an Array/Array-like object?
if (
el.constructor === NodeList ||
el.constructor === HTMLCollection ||
el.constructor === Array
) {
let length = el.length;
for (var i = 0; i < length; ++i) {
this._attach(el[i]);
}
} else {
this._attach(el);
}
}
_attach(el) {
if (el.hasAttribute("data-tribute")) {
console.warn("Tribute was already bound to " + el.nodeName);
}
this.ensureEditable(el);
this.events.bind(el);
el.setAttribute("data-tribute", true);
}
ensureEditable(element) {
if (Tribute.inputTypes().indexOf(element.nodeName) === -1) {
if (!element.contentEditable) {
throw new Error("[Tribute] Cannot bind to " + element.nodeName + ", not contentEditable");
}
}
}
createMenu(containerClass) {
let wrapper = this.range.getDocument().createElement("div"),
ul = this.range.getDocument().createElement("ul");
wrapper.className = containerClass;
wrapper.appendChild(ul);
if (this.menuContainer) {
return this.menuContainer.appendChild(wrapper);
}
return this.range.getDocument().body.appendChild(wrapper);
}
showMenuFor(element, scrollTo) {
// Only proceed if menu isn't already shown for the current element & mentionText
if (
this.isActive &&
this.current.element === element &&
this.current.mentionText === this.currentMentionTextSnapshot
) {
return;
}
this.currentMentionTextSnapshot = this.current.mentionText;
// create the menu if it doesn't exist.
if (!this.menu) {
this.menu = this.createMenu(this.current.collection.containerClass);
element.tributeMenu = this.menu;
this.menuEvents.bind(this.menu);
}
this.isActive = true;
this.menuSelected = 0;
if (!this.current.mentionText) {
this.current.mentionText = "";
}
const processValues = values => {
// Tribute may not be active any more by the time the value callback returns
if (!this.isActive) {
return;
}
let items = this.search.filter(this.current.mentionText, values, {
pre: this.current.collection.searchOpts.pre || "<span>",
post: this.current.collection.searchOpts.post || "</span>",
skip: this.current.collection.searchOpts.skip,
extract: el => {
if (typeof this.current.collection.lookup === "string") {
return el[this.current.collection.lookup];
} else if (typeof this.current.collection.lookup === "function") {
return this.current.collection.lookup(el, this.current.mentionText);
} else {
throw new Error(
"Invalid lookup attribute, lookup must be string or function."
);
}
}
});
if (this.current.collection.menuItemLimit) {
items = items.slice(0, this.current.collection.menuItemLimit);
}
this.current.filteredItems = items;
let ul = this.menu.querySelector("ul");
if (!items.length) {
let noMatchEvent = new CustomEvent("tribute-no-match", {
detail: this.menu
});
this.current.element.dispatchEvent(noMatchEvent);
if (
(typeof this.current.collection.noMatchTemplate === "function" &&
!this.current.collection.noMatchTemplate()) ||
!this.current.collection.noMatchTemplate
) {
this.hideMenu();
} else {
typeof this.current.collection.noMatchTemplate === "function"
? (ul.innerHTML = this.current.collection.noMatchTemplate())
: (ul.innerHTML = this.current.collection.noMatchTemplate);
this.range.positionMenuAtCaret(scrollTo);
}
return;
}
ul.innerHTML = "";
let fragment = this.range.getDocument().createDocumentFragment();
items.forEach((item, index) => {
let li = this.range.getDocument().createElement("li");
li.setAttribute("data-index", index);
li.className = this.current.collection.itemClass;
li.addEventListener("mousemove", e => {
let [li, index] = this._findLiTarget(e.target);
if (e.movementY !== 0) {
this.events.setActiveLi(index);
}
});
if (this.menuSelected === index) {
li.classList.add(this.current.collection.selectClass);
}
li.innerHTML = this.current.collection.menuItemTemplate(item);
fragment.appendChild(li);
});
ul.appendChild(fragment);
this.range.positionMenuAtCaret(scrollTo);
};
if (typeof this.current.collection.values === "function") {
if (this.current.collection.loadingItemTemplate) {
this.menu.querySelector("ul").innerHTML = this.current.collection.loadingItemTemplate;
this.range.positionMenuAtCaret(scrollTo);
}
this.current.collection.values(this.current.mentionText, processValues);
} else {
processValues(this.current.collection.values);
}
}
_findLiTarget(el) {
if (!el) return [];
const index = el.getAttribute("data-index");
return !index ? this._findLiTarget(el.parentNode) : [el, index];
}
showMenuForCollection(element, collectionIndex) {
if (element !== document.activeElement) {
this.placeCaretAtEnd(element);
}
this.current.collection = this.collection[collectionIndex || 0];
this.current.externalTrigger = true;
this.current.element = element;
if (element.isContentEditable)
this.insertTextAtCursor(this.current.collection.trigger);
else this.insertAtCaret(element, this.current.collection.trigger);
this.showMenuFor(element);
}
// TODO: make sure this works for inputs/textareas
placeCaretAtEnd(el) {
el.focus();
if (
typeof window.getSelection != "undefined" &&
typeof document.createRange != "undefined"
) {
var range = document.createRange();
range.selectNodeContents(el);
range.collapse(false);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
} else if (typeof document.body.createTextRange != "undefined") {
var textRange = document.body.createTextRange();
textRange.moveToElementText(el);
textRange.collapse(false);
textRange.select();
}
}
// for contenteditable
insertTextAtCursor(text) {
var sel, range, html;
sel = window.getSelection();
range = sel.getRangeAt(0);
range.deleteContents();
var textNode = document.createTextNode(text);
range.insertNode(textNode);
range.selectNodeContents(textNode);
range.collapse(false);
sel.removeAllRanges();
sel.addRange(range);
}
// for regular inputs
insertAtCaret(textarea, text) {
var scrollPos = textarea.scrollTop;
var caretPos = textarea.selectionStart;
var front = textarea.value.substring(0, caretPos);
var back = textarea.value.substring(
textarea.selectionEnd,
textarea.value.length
);
textarea.value = front + text + back;
caretPos = caretPos + text.length;
textarea.selectionStart = caretPos;
textarea.selectionEnd = caretPos;
textarea.focus();
textarea.scrollTop = scrollPos;
}
hideMenu() {
if (this.menu) {
this.menu.style.cssText = "display: none;";
this.isActive = false;
this.menuSelected = 0;
this.current = {};
}
}
selectItemAtIndex(index, originalEvent) {
index = parseInt(index);
if (typeof index !== "number" || isNaN(index)) return;
let item = this.current.filteredItems[index];
let content = this.current.collection.selectTemplate(item);
if (content !== null) this.replaceText(content, originalEvent, item);
}
replaceText(content, originalEvent, item) {
this.range.replaceTriggerText(content, true, true, originalEvent, item);
}
_append(collection, newValues, replace) {
if (typeof collection.values === "function") {
throw new Error("Unable to append to values, as it is a function.");
} else if (!replace) {
collection.values = collection.values.concat(newValues);
} else {
collection.values = newValues;
}
}
append(collectionIndex, newValues, replace) {
let index = parseInt(collectionIndex);
if (typeof index !== "number")
throw new Error("please provide an index for the collection to update.");
let collection = this.collection[index];
this._append(collection, newValues, replace);
}
appendCurrent(newValues, replace) {
if (this.isActive) {
this._append(this.current.collection, newValues, replace);
} else {
throw new Error(
"No active state. Please use append instead and pass an index."
);
}
}
detach(el) {
if (!el) {
throw new Error("[Tribute] Must pass in a DOM node or NodeList.");
}
// Check if it is a jQuery collection
if (typeof jQuery !== "undefined" && el instanceof jQuery) {
el = el.get();
}
// Is el an Array/Array-like object?
if (
el.constructor === NodeList ||
el.constructor === HTMLCollection ||
el.constructor === Array
) {
let length = el.length;
for (var i = 0; i < length; ++i) {
this._detach(el[i]);
}
} else {
this._detach(el);
}
}
_detach(el) {
this.events.unbind(el);
if (el.tributeMenu) {
this.menuEvents.unbind(el.tributeMenu);
}
setTimeout(() => {
el.removeAttribute("data-tribute");
this.isActive = false;
if (el.tributeMenu) {
el.tributeMenu.remove();
}
});
}
}
export default Tribute;
```
|
/content/code_sandbox/src/Tribute.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 3,473
|
```javascript
/**
* Tribute.js
* Native ES6 JavaScript @mention Plugin
**/
import "./tribute.scss";
import Tribute from "./Tribute";
export default Tribute;
```
|
/content/code_sandbox/src/index.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 33
|
```javascript
class TributeEvents {
constructor(tribute) {
this.tribute = tribute;
this.tribute.events = this;
}
static keys() {
return [
{
key: 9,
value: "TAB"
},
{
key: 8,
value: "DELETE"
},
{
key: 13,
value: "ENTER"
},
{
key: 27,
value: "ESCAPE"
},
{
key: 32,
value: "SPACE"
},
{
key: 38,
value: "UP"
},
{
key: 40,
value: "DOWN"
}
];
}
bind(element) {
element.boundKeydown = this.keydown.bind(element, this);
element.boundKeyup = this.keyup.bind(element, this);
element.boundInput = this.input.bind(element, this);
element.addEventListener("keydown", element.boundKeydown, true);
element.addEventListener("keyup", element.boundKeyup, true);
element.addEventListener("input", element.boundInput, true);
}
unbind(element) {
element.removeEventListener("keydown", element.boundKeydown, true);
element.removeEventListener("keyup", element.boundKeyup, true);
element.removeEventListener("input", element.boundInput, true);
delete element.boundKeydown;
delete element.boundKeyup;
delete element.boundInput;
}
keydown(instance, event) {
if (instance.shouldDeactivate(event)) {
instance.tribute.isActive = false;
instance.tribute.hideMenu();
}
let element = this;
instance.commandEvent = false;
TributeEvents.keys().forEach(o => {
if (o.key === event.keyCode) {
instance.commandEvent = true;
instance.callbacks()[o.value.toLowerCase()](event, element);
}
});
}
input(instance, event) {
instance.inputEvent = true;
instance.keyup.call(this, instance, event);
}
click(instance, event) {
let tribute = instance.tribute;
if (tribute.menu && tribute.menu.contains(event.target)) {
let li = event.target;
event.preventDefault();
event.stopPropagation();
while (li.nodeName.toLowerCase() !== "li") {
li = li.parentNode;
if (!li || li === tribute.menu) {
throw new Error("cannot find the <li> container for the click");
}
}
tribute.selectItemAtIndex(li.getAttribute("data-index"), event);
tribute.hideMenu();
// TODO: should fire with externalTrigger and target is outside of menu
} else if (tribute.current.element && !tribute.current.externalTrigger) {
tribute.current.externalTrigger = false;
setTimeout(() => tribute.hideMenu());
}
}
keyup(instance, event) {
if (instance.inputEvent) {
instance.inputEvent = false;
}
instance.updateSelection(this);
if (!event.keyCode || event.keyCode === 27) return;
if (!instance.tribute.allowSpaces && instance.tribute.hasTrailingSpace) {
instance.tribute.hasTrailingSpace = false;
instance.commandEvent = true;
instance.callbacks()["space"](event, this);
return;
}
if (!instance.tribute.isActive) {
if (instance.tribute.autocompleteMode) {
instance.callbacks().triggerChar(event, this, "");
} else {
let keyCode = instance.getKeyCode(instance, this, event);
if (isNaN(keyCode) || !keyCode) return;
let trigger = instance.tribute.triggers().find(trigger => {
return trigger.charCodeAt(0) === keyCode;
});
if (typeof trigger !== "undefined") {
instance.callbacks().triggerChar(event, this, trigger);
}
}
}
if (
instance.tribute.current.mentionText.length <
instance.tribute.current.collection.menuShowMinLength
) {
return;
}
if (
((instance.tribute.current.trigger ||
instance.tribute.autocompleteMode) &&
instance.commandEvent === false) ||
(instance.tribute.isActive && event.keyCode === 8)
) {
instance.tribute.showMenuFor(this, true);
}
}
shouldDeactivate(event) {
if (!this.tribute.isActive) return false;
if (this.tribute.current.mentionText.length === 0) {
let eventKeyPressed = false;
TributeEvents.keys().forEach(o => {
if (event.keyCode === o.key) eventKeyPressed = true;
});
return !eventKeyPressed;
}
return false;
}
getKeyCode(instance, el, event) {
let char;
let tribute = instance.tribute;
let info = tribute.range.getTriggerInfo(
false,
tribute.hasTrailingSpace,
true,
tribute.allowSpaces,
tribute.autocompleteMode
);
if (info) {
return info.mentionTriggerChar.charCodeAt(0);
} else {
return false;
}
}
updateSelection(el) {
this.tribute.current.element = el;
let info = this.tribute.range.getTriggerInfo(
false,
this.tribute.hasTrailingSpace,
true,
this.tribute.allowSpaces,
this.tribute.autocompleteMode
);
if (info) {
this.tribute.current.selectedPath = info.mentionSelectedPath;
this.tribute.current.mentionText = info.mentionText;
this.tribute.current.selectedOffset = info.mentionSelectedOffset;
}
}
callbacks() {
return {
triggerChar: (e, el, trigger) => {
let tribute = this.tribute;
tribute.current.trigger = trigger;
let collectionItem = tribute.collection.find(item => {
return item.trigger === trigger;
});
tribute.current.collection = collectionItem;
if (
tribute.current.mentionText.length >=
tribute.current.collection.menuShowMinLength &&
tribute.inputEvent
) {
tribute.showMenuFor(el, true);
}
},
enter: (e, el) => {
// choose selection
if (this.tribute.isActive && this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
setTimeout(() => {
this.tribute.selectItemAtIndex(this.tribute.menuSelected, e);
this.tribute.hideMenu();
}, 0);
}
},
escape: (e, el) => {
if (this.tribute.isActive) {
e.preventDefault();
e.stopPropagation();
this.tribute.isActive = false;
this.tribute.hideMenu();
}
},
tab: (e, el) => {
// choose first match
this.callbacks().enter(e, el);
},
space: (e, el) => {
if (this.tribute.isActive) {
if (this.tribute.spaceSelectsMatch) {
this.callbacks().enter(e, el);
} else if (!this.tribute.allowSpaces) {
e.stopPropagation();
setTimeout(() => {
this.tribute.hideMenu();
this.tribute.isActive = false;
}, 0);
}
}
},
up: (e, el) => {
// navigate up ul
if (this.tribute.isActive && this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
let count = this.tribute.current.filteredItems.length,
selected = this.tribute.menuSelected;
if (count > selected && selected > 0) {
this.tribute.menuSelected--;
this.setActiveLi();
} else if (selected === 0) {
this.tribute.menuSelected = count - 1;
this.setActiveLi();
this.tribute.menu.scrollTop = this.tribute.menu.scrollHeight;
}
}
},
down: (e, el) => {
// navigate down ul
if (this.tribute.isActive && this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
let count = this.tribute.current.filteredItems.length - 1,
selected = this.tribute.menuSelected;
if (count > selected) {
this.tribute.menuSelected++;
this.setActiveLi();
} else if (count === selected) {
this.tribute.menuSelected = 0;
this.setActiveLi();
this.tribute.menu.scrollTop = 0;
}
}
},
delete: (e, el) => {
if (
this.tribute.isActive &&
this.tribute.current.mentionText.length < 1
) {
this.tribute.hideMenu();
} else if (this.tribute.isActive) {
this.tribute.showMenuFor(el);
}
}
};
}
setActiveLi(index) {
let lis = this.tribute.menu.querySelectorAll("li"),
length = lis.length >>> 0;
if (index) this.tribute.menuSelected = parseInt(index);
for (let i = 0; i < length; i++) {
let li = lis[i];
if (i === this.tribute.menuSelected) {
li.classList.add(this.tribute.current.collection.selectClass);
let liClientRect = li.getBoundingClientRect();
let menuClientRect = this.tribute.menu.getBoundingClientRect();
if (liClientRect.bottom > menuClientRect.bottom) {
let scrollDistance = liClientRect.bottom - menuClientRect.bottom;
this.tribute.menu.scrollTop += scrollDistance;
} else if (liClientRect.top < menuClientRect.top) {
let scrollDistance = menuClientRect.top - liClientRect.top;
this.tribute.menu.scrollTop -= scrollDistance;
}
} else {
li.classList.remove(this.tribute.current.collection.selectClass);
}
}
}
getFullHeight(elem, includeMargin) {
let height = elem.getBoundingClientRect().height;
if (includeMargin) {
let style = elem.currentStyle || window.getComputedStyle(elem);
return (
height + parseFloat(style.marginTop) + parseFloat(style.marginBottom)
);
}
return height;
}
}
export default TributeEvents;
```
|
/content/code_sandbox/src/TributeEvents.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 2,125
|
```javascript
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Tribute=t()}(this,(function(){"use strict";function e(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function t(e,t){for(var n=0;n<t.length;n++){var i=t[n];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,i.key,i)}}function n(e,n,i){return n&&t(e.prototype,n),i&&t(e,i),e}function i(e,t){return function(e){if(Array.isArray(e))return e}(e)||function(e,t){if("undefined"==typeof Symbol||!(Symbol.iterator in Object(e)))return;var n=[],i=!0,r=!1,o=void 0;try{for(var u,a=e[Symbol.iterator]();!(i=(u=a.next()).done)&&(n.push(u.value),!t||n.length!==t);i=!0);}catch(e){r=!0,o=e}finally{try{i||null==a.return||a.return()}finally{if(r)throw o}}return n}(e,t)||function(e,t){if(!e)return;if("string"==typeof e)return r(e,t);var n=Object.prototype.toString.call(e).slice(8,-1);"Object"===n&&e.constructor&&(n=e.constructor.name);if("Map"===n||"Set"===n)return Array.from(n);if("Arguments"===n||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n))return r(e,t)}(e,t)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function r(e,t){(null==t||t>e.length)&&(t=e.length);for(var n=0,i=new Array(t);n<t;n++)i[n]=e[n];return i}if(Array.prototype.find||(Array.prototype.find=function(e){if(null===this)throw new TypeError("Array.prototype.find called on null or undefined");if("function"!=typeof e)throw new TypeError("predicate must be a function");for(var t,n=Object(this),i=n.length>>>0,r=arguments[1],o=0;o<i;o++)if(t=n[o],e.call(r,t,o,n))return t}),window&&"function"!=typeof window.CustomEvent){var o=function(e,t){t=t||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(e,t.bubbles,t.cancelable,t.detail),n};void 0!==window.Event&&(o.prototype=window.Event.prototype),window.CustomEvent=o}var u=function(){function t(n){e(this,t),this.tribute=n,this.tribute.events=this}return n(t,[{key:"bind",value:function(e){e.boundKeydown=this.keydown.bind(e,this),e.boundKeyup=this.keyup.bind(e,this),e.boundInput=this.input.bind(e,this),e.addEventListener("keydown",e.boundKeydown,!1),e.addEventListener("keyup",e.boundKeyup,!1),e.addEventListener("input",e.boundInput,!1)}},{key:"unbind",value:function(e){e.removeEventListener("keydown",e.boundKeydown,!1),e.removeEventListener("keyup",e.boundKeyup,!1),e.removeEventListener("input",e.boundInput,!1),delete e.boundKeydown,delete e.boundKeyup,delete e.boundInput}},{key:"keydown",value:function(e,n){e.shouldDeactivate(n)&&(e.tribute.isActive=!1,e.tribute.hideMenu());var i=this;e.commandEvent=!1,t.keys().forEach((function(t){t.key===n.keyCode&&(e.commandEvent=!0,e.callbacks()[t.value.toLowerCase()](n,i))}))}},{key:"input",value:function(e,t){e.inputEvent=!0,e.keyup.call(this,e,t)}},{key:"click",value:function(e,t){var n=e.tribute;if(n.menu&&n.menu.contains(t.target)){var i=t.target;for(t.preventDefault(),t.stopPropagation();"li"!==i.nodeName.toLowerCase();)if(!(i=i.parentNode)||i===n.menu)throw new Error("cannot find the <li> container for the click");n.selectItemAtIndex(i.getAttribute("data-index"),t),n.hideMenu()}else n.current.element&&!n.current.externalTrigger&&(n.current.externalTrigger=!1,setTimeout((function(){return n.hideMenu()})))}},{key:"keyup",value:function(e,t){if(e.inputEvent&&(e.inputEvent=!1),e.updateSelection(this),27!==t.keyCode){if(!e.tribute.allowSpaces&&e.tribute.hasTrailingSpace)return e.tribute.hasTrailingSpace=!1,e.commandEvent=!0,void e.callbacks().space(t,this);if(!e.tribute.isActive)if(e.tribute.autocompleteMode)e.callbacks().triggerChar(t,this,"");else{var n=e.getKeyCode(e,this,t);if(isNaN(n)||!n)return;var i=e.tribute.triggers().find((function(e){return e.charCodeAt(0)===n}));void 0!==i&&e.callbacks().triggerChar(t,this,i)}e.tribute.current.mentionText.length<e.tribute.current.collection.menuShowMinLength||((e.tribute.current.trigger||e.tribute.autocompleteMode)&&!1===e.commandEvent||e.tribute.isActive&&8===t.keyCode)&&e.tribute.showMenuFor(this,!0)}}},{key:"shouldDeactivate",value:function(e){if(!this.tribute.isActive)return!1;if(0===this.tribute.current.mentionText.length){var n=!1;return t.keys().forEach((function(t){e.keyCode===t.key&&(n=!0)})),!n}return!1}},{key:"getKeyCode",value:function(e,t,n){var i=e.tribute,r=i.range.getTriggerInfo(!1,i.hasTrailingSpace,!0,i.allowSpaces,i.autocompleteMode);return!!r&&r.mentionTriggerChar.charCodeAt(0)}},{key:"updateSelection",value:function(e){this.tribute.current.element=e;var t=this.tribute.range.getTriggerInfo(!1,this.tribute.hasTrailingSpace,!0,this.tribute.allowSpaces,this.tribute.autocompleteMode);t&&(this.tribute.current.selectedPath=t.mentionSelectedPath,this.tribute.current.mentionText=t.mentionText,this.tribute.current.selectedOffset=t.mentionSelectedOffset)}},{key:"callbacks",value:function(){var e=this;return{triggerChar:function(t,n,i){var r=e.tribute;r.current.trigger=i;var o=r.collection.find((function(e){return e.trigger===i}));r.current.collection=o,r.current.mentionText.length>=r.current.collection.menuShowMinLength&&r.inputEvent&&r.showMenuFor(n,!0)},enter:function(t,n){e.tribute.isActive&&e.tribute.current.filteredItems&&(t.preventDefault(),t.stopPropagation(),setTimeout((function(){e.tribute.selectItemAtIndex(e.tribute.menuSelected,t),e.tribute.hideMenu()}),0))},escape:function(t,n){e.tribute.isActive&&(t.preventDefault(),t.stopPropagation(),e.tribute.isActive=!1,e.tribute.hideMenu())},tab:function(t,n){e.callbacks().enter(t,n)},space:function(t,n){e.tribute.isActive&&(e.tribute.spaceSelectsMatch?e.callbacks().enter(t,n):e.tribute.allowSpaces||(t.stopPropagation(),setTimeout((function(){e.tribute.hideMenu(),e.tribute.isActive=!1}),0)))},up:function(t,n){if(e.tribute.isActive&&e.tribute.current.filteredItems){t.preventDefault(),t.stopPropagation();var i=e.tribute.current.filteredItems.length,r=e.tribute.menuSelected;i>r&&r>0?(e.tribute.menuSelected--,e.setActiveLi()):0===r&&(e.tribute.menuSelected=i-1,e.setActiveLi(),e.tribute.menu.scrollTop=e.tribute.menu.scrollHeight)}},down:function(t,n){if(e.tribute.isActive&&e.tribute.current.filteredItems){t.preventDefault(),t.stopPropagation();var i=e.tribute.current.filteredItems.length-1,r=e.tribute.menuSelected;i>r?(e.tribute.menuSelected++,e.setActiveLi()):i===r&&(e.tribute.menuSelected=0,e.setActiveLi(),e.tribute.menu.scrollTop=0)}},delete:function(t,n){e.tribute.isActive&&e.tribute.current.mentionText.length<1?e.tribute.hideMenu():e.tribute.isActive&&e.tribute.showMenuFor(n)}}}},{key:"setActiveLi",value:function(e){var t=this.tribute.menu.querySelectorAll("li"),n=t.length>>>0;e&&(this.tribute.menuSelected=parseInt(e));for(var i=0;i<n;i++){var r=t[i];if(i===this.tribute.menuSelected){r.classList.add(this.tribute.current.collection.selectClass);var o=r.getBoundingClientRect(),u=this.tribute.menu.getBoundingClientRect();if(o.bottom>u.bottom){var a=o.bottom-u.bottom;this.tribute.menu.scrollTop+=a}else if(o.top<u.top){var l=u.top-o.top;this.tribute.menu.scrollTop-=l}}else r.classList.remove(this.tribute.current.collection.selectClass)}}},{key:"getFullHeight",value:function(e,t){var n=e.getBoundingClientRect().height;if(t){var i=e.currentStyle||window.getComputedStyle(e);return n+parseFloat(i.marginTop)+parseFloat(i.marginBottom)}return n}}],[{key:"keys",value:function(){return[{key:9,value:"TAB"},{key:8,value:"DELETE"},{key:13,value:"ENTER"},{key:27,value:"ESCAPE"},{key:32,value:"SPACE"},{key:38,value:"UP"},{key:40,value:"DOWN"}]}}]),t}(),a=function(){function t(n){e(this,t),this.tribute=n,this.tribute.menuEvents=this,this.menu=this.tribute.menu}return n(t,[{key:"bind",value:function(e){var t=this;this.menuClickEvent=this.tribute.events.click.bind(null,this),this.menuContainerScrollEvent=this.debounce((function(){t.tribute.isActive&&t.tribute.hideMenu()}),10,!1),this.windowResizeEvent=this.debounce((function(){t.tribute.isActive&&t.tribute.hideMenu()}),10,!1),this.tribute.range.getDocument().addEventListener("MSPointerDown",this.menuClickEvent,!1),this.tribute.range.getDocument().addEventListener("mousedown",this.menuClickEvent,!1),window.addEventListener("resize",this.windowResizeEvent),this.menuContainer?this.menuContainer.addEventListener("scroll",this.menuContainerScrollEvent,!1):window.addEventListener("scroll",this.menuContainerScrollEvent)}},{key:"unbind",value:function(e){this.tribute.range.getDocument().removeEventListener("mousedown",this.menuClickEvent,!1),this.tribute.range.getDocument().removeEventListener("MSPointerDown",this.menuClickEvent,!1),window.removeEventListener("resize",this.windowResizeEvent),this.menuContainer?this.menuContainer.removeEventListener("scroll",this.menuContainerScrollEvent,!1):window.removeEventListener("scroll",this.menuContainerScrollEvent)}},{key:"debounce",value:function(e,t,n){var i,r=arguments,o=this;return function(){var u=o,a=r,l=n&&!i;clearTimeout(i),i=setTimeout((function(){i=null,n||e.apply(u,a)}),t),l&&e.apply(u,a)}}}]),t}(),l=function(){function t(n){e(this,t),this.tribute=n,this.tribute.range=this}return n(t,[{key:"getDocument",value:function(){var e;return this.tribute.current.collection&&(e=this.tribute.current.collection.iframe),e?e.contentWindow.document:document}},{key:"positionMenuAtCaret",value:function(e){var t,n=this.tribute.current,i=this.getTriggerInfo(!1,this.tribute.hasTrailingSpace,!0,this.tribute.allowSpaces,this.tribute.autocompleteMode);if(void 0!==i){if(!this.tribute.positionMenu)return void(this.tribute.menu.style.cssText="display: block;");t=this.isContentEditable(n.element)?this.getContentEditableCaretPosition(i.mentionPosition):this.getTextAreaOrInputUnderlinePosition(this.tribute.current.element,i.mentionPosition),this.tribute.menu.style.cssText="top: ".concat(t.top,"px;\n left: ").concat(t.left,"px;\n right: ").concat(t.right,"px;\n bottom: ").concat(t.bottom,"px;\n max-height: ").concat(t.maxHeight||500,"px;\n max-width: ").concat(t.maxWidth||300,"px;\n position: ").concat(t.position||"absolute",";\n display: block;"),"auto"===t.left&&(this.tribute.menu.style.left="auto"),"auto"===t.top&&(this.tribute.menu.style.top="auto"),e&&this.scrollIntoView()}else this.tribute.menu.style.cssText="display: none"}},{key:"selectElement",value:function(e,t,n){var i,r=e;if(t)for(var o=0;o<t.length;o++){if(void 0===(r=r.childNodes[t[o]]))return;for(;r.length<n;)n-=r.length,r=r.nextSibling;0!==r.childNodes.length||r.length||(r=r.previousSibling)}var u=this.getWindowSelection();(i=this.getDocument().createRange()).setStart(r,n),i.setEnd(r,n),i.collapse(!0);try{u.removeAllRanges()}catch(e){}u.addRange(i),e.focus()}},{key:"replaceTriggerText",value:function(e,t,n,i,r){var o=this.getTriggerInfo(!0,n,t,this.tribute.allowSpaces,this.tribute.autocompleteMode);if(void 0!==o){var u=this.tribute.current,a=new CustomEvent("tribute-replaced",{detail:{item:r,instance:u,context:o,event:i}});if(this.isContentEditable(u.element)){e+="string"==typeof this.tribute.replaceTextSuffix?this.tribute.replaceTextSuffix:"";var l=o.mentionPosition+o.mentionText.length;this.tribute.autocompleteMode||(l+=o.mentionTriggerChar.length),this.pasteHtml(e,o.mentionPosition,l)}else{var s=this.tribute.current.element,c="string"==typeof this.tribute.replaceTextSuffix?this.tribute.replaceTextSuffix:" ";e+=c;var h=o.mentionPosition,d=o.mentionPosition+o.mentionText.length+c.length;this.tribute.autocompleteMode||(d+=o.mentionTriggerChar.length-1),s.value=s.value.substring(0,h)+e+s.value.substring(d,s.value.length),s.selectionStart=h+e.length,s.selectionEnd=h+e.length}u.element.dispatchEvent(new CustomEvent("input",{bubbles:!0})),u.element.dispatchEvent(a)}}},{key:"pasteHtml",value:function(e,t,n){var i,r;r=this.getWindowSelection(),(i=this.getDocument().createRange()).setStart(r.anchorNode,t),i.setEnd(r.anchorNode,n),i.deleteContents();var o=this.getDocument().createElement("div");o.innerHTML=e;for(var u,a,l=this.getDocument().createDocumentFragment();u=o.firstChild;)a=l.appendChild(u);i.insertNode(l),a&&((i=i.cloneRange()).setStartAfter(a),i.collapse(!0),r.removeAllRanges(),r.addRange(i))}},{key:"getWindowSelection",value:function(){return this.tribute.collection.iframe?this.tribute.collection.iframe.contentWindow.getSelection():window.getSelection()}},{key:"getNodePositionInParent",value:function(e){if(null===e.parentNode)return 0;for(var t=0;t<e.parentNode.childNodes.length;t++){if(e.parentNode.childNodes[t]===e)return t}}},{key:"getContentEditableSelectedPath",value:function(e){var t=this.getWindowSelection(),n=t.anchorNode,i=[];if(null!=n){for(var r,o=n.contentEditable;null!==n&&"true"!==o;)r=this.getNodePositionInParent(n),i.push(r),null!==(n=n.parentNode)&&(o=n.contentEditable);return i.reverse(),{selected:n,path:i,offset:t.getRangeAt(0).startOffset}}}},{key:"getTextPrecedingCurrentSelection",value:function(){var e=this.tribute.current,t="";if(this.isContentEditable(e.element)){var n=this.getWindowSelection().anchorNode;if(null!=n){var i=n.textContent,r=this.getWindowSelection().getRangeAt(0).startOffset;i&&r>=0&&(t=i.substring(0,r))}}else{var o=this.tribute.current.element;if(o){var u=o.selectionStart;o.value&&u>=0&&(t=o.value.substring(0,u))}}return t}},{key:"getLastWordInText",value:function(e){var t;return e=e.replace(/\u00A0/g," "),(t=this.tribute.autocompleteSeparator?e.split(this.tribute.autocompleteSeparator):e.split(/\s+/))[t.length-1].trim()}},{key:"getTriggerInfo",value:function(e,t,n,i,r){var o,u,a,l=this,s=this.tribute.current;if(this.isContentEditable(s.element)){var c=this.getContentEditableSelectedPath(s);c&&(o=c.selected,u=c.path,a=c.offset)}else o=this.tribute.current.element;var h=this.getTextPrecedingCurrentSelection(),d=this.getLastWordInText(h);if(r)return{mentionPosition:h.length-d.length,mentionText:d,mentionSelectedElement:o,mentionSelectedPath:u,mentionSelectedOffset:a};if(null!=h){var f,m=-1;if(this.tribute.collection.forEach((function(e){var t=e.trigger,i=e.requireLeadingSpace?l.lastIndexWithLeadingSpace(h,t):h.lastIndexOf(t);i>m&&(m=i,f=t,n=e.requireLeadingSpace)})),m>=0&&(0===m||!n||/[\xA0\s]/g.test(h.substring(m-1,m)))){var p=h.substring(m+f.length,h.length);f=h.substring(m,m+f.length);var v=p.substring(0,1),g=p.length>0&&(" "===v||""===v);t&&(p=p.trim());var b=i?/[^\S ]/g:/[\xA0\s]/g;if(this.tribute.hasTrailingSpace=b.test(p),!g&&(e||!b.test(p)))return{mentionPosition:m,mentionText:p,mentionSelectedElement:o,mentionSelectedPath:u,mentionSelectedOffset:a,mentionTriggerChar:f}}}}},{key:"lastIndexWithLeadingSpace",value:function(e,t){for(var n=e.split("").reverse().join(""),i=-1,r=0,o=e.length;r<o;r++){for(var u=r===e.length-1,a=/\s/.test(n[r+1]),l=!0,s=t.length-1;s>=0;s--)if(t[s]!==n[r-s]){l=!1;break}if(l&&(u||a)){i=e.length-1-r;break}}return i}},{key:"isContentEditable",value:function(e){return"INPUT"!==e.nodeName&&"TEXTAREA"!==e.nodeName}},{key:"isMenuOffScreen",value:function(e,t){var n=window.innerWidth,i=window.innerHeight,r=document.documentElement,o=(window.pageXOffset||r.scrollLeft)-(r.clientLeft||0),u=(window.pageYOffset||r.scrollTop)-(r.clientTop||0),a="number"==typeof e.top?e.top:u+i-e.bottom-t.height,l="number"==typeof e.right?e.right:e.left+t.width,s="number"==typeof e.bottom?e.bottom:e.top+t.height,c="number"==typeof e.left?e.left:o+n-e.right-t.width;return{top:a<Math.floor(u),right:l>Math.ceil(o+n),bottom:s>Math.ceil(u+i),left:c<Math.floor(o)}}},{key:"getMenuDimensions",value:function(){var e={width:null,height:null};return this.tribute.menu.style.cssText="top: 0px;\n left: 0px;\n position: fixed;\n display: block;\n visibility; hidden;\n max-height:500px;",e.width=this.tribute.menu.offsetWidth,e.height=this.tribute.menu.offsetHeight,this.tribute.menu.style.cssText="display: none;",e}},{key:"getTextAreaOrInputUnderlinePosition",value:function(e,t,n){var i=this.getDocument().createElement("div");i.id="input-textarea-caret-position-mirror-div",this.getDocument().body.appendChild(i);var r=i.style,o=window.getComputedStyle?getComputedStyle(e):e.currentStyle;r.whiteSpace="pre-wrap","INPUT"!==e.nodeName&&(r.wordWrap="break-word"),r.position="absolute",r.visibility="hidden",["direction","boxSizing","width","height","overflowX","overflowY","borderTopWidth","borderRightWidth","borderBottomWidth","borderLeftWidth","borderStyle","paddingTop","paddingRight","paddingBottom","paddingLeft","fontStyle","fontVariant","fontWeight","fontStretch","fontSize","fontSizeAdjust","lineHeight","fontFamily","textAlign","textTransform","textIndent","textDecoration","letterSpacing","wordSpacing"].forEach((function(e){r[e]=o[e]}));var u=document.createElement("span");u.textContent=e.value.substring(0,t),i.appendChild(u),"INPUT"===e.nodeName&&(i.textContent=i.textContent.replace(/\s/g,""));var a=this.getDocument().createElement("span");a.textContent="​",i.appendChild(a);var l=this.getDocument().createElement("span");l.textContent=e.value.substring(t),i.appendChild(l);var s=e.getBoundingClientRect();i.style.position="fixed",i.style.left=s.left+"px",i.style.top=s.top+"px",i.style.width=s.width+"px",i.style.height=s.height+"px",i.scrollTop=e.scrollTop;var c=a.getBoundingClientRect();return this.getDocument().body.removeChild(i),this.getFixedCoordinatesRelativeToRect(c)}},{key:"getContentEditableCaretPosition",value:function(e){var t,n=this.getWindowSelection();(t=this.getDocument().createRange()).setStart(n.anchorNode,e),t.setEnd(n.anchorNode,e),t.collapse(!1);var i=t.getBoundingClientRect();return this.getFixedCoordinatesRelativeToRect(i)}},{key:"getFixedCoordinatesRelativeToRect",value:function(e){var t={position:"fixed",left:e.left,top:e.top+e.height},n=this.getMenuDimensions(),i=e.top,r=window.innerHeight-(e.top+e.height);r<n.height&&(i>=n.height||i>r?(t.top="auto",t.bottom=window.innerHeight-e.top,r<n.height&&(t.maxHeight=i)):i<n.height&&(t.maxHeight=r));var o=e.left,u=window.innerWidth-e.left;return u<n.width&&(o>=n.width||o>u?(t.left="auto",t.right=window.innerWidth-e.left,u<n.width&&(t.maxWidth=o)):o<n.width&&(t.maxWidth=u)),t}},{key:"scrollIntoView",value:function(e){var t,n=this.menu;if(void 0!==n){for(;void 0===t||0===t.height;)if(0===(t=n.getBoundingClientRect()).height&&(void 0===(n=n.childNodes[0])||!n.getBoundingClientRect))return;var i=t.top,r=i+t.height;if(i<0)window.scrollTo(0,window.pageYOffset+t.top-20);else if(r>window.innerHeight){var o=window.pageYOffset+t.top-20;o-window.pageYOffset>100&&(o=window.pageYOffset+100);var u=window.pageYOffset-(window.innerHeight-r);u>o&&(u=o),window.scrollTo(0,u)}}}},{key:"menuContainerIsBody",get:function(){return this.tribute.menuContainer===document.body||!this.tribute.menuContainer}}]),t}(),s=function(){function t(n){e(this,t),this.tribute=n,this.tribute.search=this}return n(t,[{key:"simpleFilter",value:function(e,t){var n=this;return t.filter((function(t){return n.test(e,t)}))}},{key:"test",value:function(e,t){return null!==this.match(e,t)}},{key:"match",value:function(e,t,n){n=n||{};t.length;var i=n.pre||"",r=n.post||"",o=n.caseSensitive&&t||t.toLowerCase();if(n.skip)return{rendered:t,score:0};e=n.caseSensitive&&e||e.toLowerCase();var u=this.traverse(o,e,0,0,[]);return u?{rendered:this.render(t,u.cache,i,r),score:u.score}:null}},{key:"traverse",value:function(e,t,n,i,r){if(this.tribute.autocompleteSeparator&&(t=t.split(this.tribute.autocompleteSeparator).splice(-1)[0]),t.length===i)return{score:this.calculateScore(r),cache:r.slice()};if(!(e.length===n||t.length-i>e.length-n)){for(var o,u,a=t[i],l=e.indexOf(a,n);l>-1;){if(r.push(l),u=this.traverse(e,t,l+1,i+1,r),r.pop(),!u)return o;(!o||o.score<u.score)&&(o=u),l=e.indexOf(a,l+1)}return o}}},{key:"calculateScore",value:function(e){var t=0,n=1;return e.forEach((function(i,r){r>0&&(e[r-1]+1===i?n+=n+1:n=1),t+=n})),t}},{key:"render",value:function(e,t,n,i){var r=e.substring(0,t[0]);return t.forEach((function(o,u){r+=n+e[o]+i+e.substring(o+1,t[u+1]?t[u+1]:e.length)})),r}},{key:"filter",value:function(e,t,n){var i=this;return n=n||{},t.reduce((function(t,r,o,u){var a=r;n.extract&&((a=n.extract(r))||(a=""));var l=i.match(e,a,n);return null!=l&&(t[t.length]={string:l.rendered,score:l.score,index:o,original:r}),t}),[]).sort((function(e,t){var n=t.score-e.score;return n||e.index-t.index}))}}]),t}();return function(){function t(n){var i,r=this,o=n.values,c=void 0===o?null:o,h=n.loadingItemTemplate,d=void 0===h?null:h,f=n.iframe,m=void 0===f?null:f,p=n.selectClass,v=void 0===p?"highlight":p,g=n.containerClass,b=void 0===g?"tribute-container":g,y=n.itemClass,w=void 0===y?"":y,T=n.trigger,S=void 0===T?"@":T,C=n.autocompleteMode,k=void 0!==C&&C,E=n.autocompleteSeparator,x=void 0===E?null:E,A=n.selectTemplate,M=void 0===A?null:A,L=n.menuItemTemplate,I=void 0===L?null:L,N=n.lookup,P=void 0===N?"key":N,R=n.fillAttr,D=void 0===R?"value":R,O=n.collection,W=void 0===O?null:O,H=n.menuContainer,F=void 0===H?null:H,_=n.noMatchTemplate,B=void 0===_?null:_,j=n.requireLeadingSpace,K=void 0===j||j,q=n.allowSpaces,U=void 0!==q&&q,z=n.replaceTextSuffix,Y=void 0===z?null:z,Q=n.positionMenu,X=void 0===Q||Q,V=n.spaceSelectsMatch,$=void 0!==V&&V,G=n.searchOpts,J=void 0===G?{}:G,Z=n.menuItemLimit,ee=void 0===Z?null:Z,te=n.menuShowMinLength,ne=void 0===te?0:te;if(e(this,t),this.autocompleteMode=k,this.autocompleteSeparator=x,this.menuSelected=0,this.current={},this.inputEvent=!1,this.isActive=!1,this.menuContainer=F,this.allowSpaces=U,this.replaceTextSuffix=Y,this.positionMenu=X,this.hasTrailingSpace=!1,this.spaceSelectsMatch=$,this.autocompleteMode&&(S="",U=!1),c)this.collection=[{trigger:S,iframe:m,selectClass:v,containerClass:b,itemClass:w,selectTemplate:(M||t.defaultSelectTemplate).bind(this),menuItemTemplate:(I||t.defaultMenuItemTemplate).bind(this),noMatchTemplate:(i=B,"string"==typeof i?""===i.trim()?null:i:"function"==typeof i?i.bind(r):B||function(){return"<li>No Match Found!</li>"}.bind(r)),lookup:P,fillAttr:D,values:c,loadingItemTemplate:d,requireLeadingSpace:K,searchOpts:J,menuItemLimit:ee,menuShowMinLength:ne}];else{if(!W)throw new Error("[Tribute] No collection specified.");this.autocompleteMode&&console.warn("Tribute in autocomplete mode does not work for collections"),this.collection=W.map((function(e){return{trigger:e.trigger||S,iframe:e.iframe||m,selectClass:e.selectClass||v,containerClass:e.containerClass||b,itemClass:e.itemClass||w,selectTemplate:(e.selectTemplate||t.defaultSelectTemplate).bind(r),menuItemTemplate:(e.menuItemTemplate||t.defaultMenuItemTemplate).bind(r),noMatchTemplate:function(e){return"string"==typeof e?""===e.trim()?null:e:"function"==typeof e?e.bind(r):B||function(){return"<li>No Match Found!</li>"}.bind(r)}(B),lookup:e.lookup||P,fillAttr:e.fillAttr||D,values:e.values,loadingItemTemplate:e.loadingItemTemplate,requireLeadingSpace:e.requireLeadingSpace,searchOpts:e.searchOpts||J,menuItemLimit:e.menuItemLimit||ee,menuShowMinLength:e.menuShowMinLength||ne}}))}new l(this),new u(this),new a(this),new s(this)}return n(t,[{key:"triggers",value:function(){return this.collection.map((function(e){return e.trigger}))}},{key:"attach",value:function(e){if(!e)throw new Error("[Tribute] Must pass in a DOM node or NodeList.");if("undefined"!=typeof jQuery&&e instanceof jQuery&&(e=e.get()),e.constructor===NodeList||e.constructor===HTMLCollection||e.constructor===Array)for(var t=e.length,n=0;n<t;++n)this._attach(e[n]);else this._attach(e)}},{key:"_attach",value:function(e){e.hasAttribute("data-tribute")&&console.warn("Tribute was already bound to "+e.nodeName),this.ensureEditable(e),this.events.bind(e),e.setAttribute("data-tribute",!0)}},{key:"ensureEditable",value:function(e){if(-1===t.inputTypes().indexOf(e.nodeName)){if(!e.contentEditable)throw new Error("[Tribute] Cannot bind to "+e.nodeName);e.contentEditable=!0}}},{key:"createMenu",value:function(e){var t=this.range.getDocument().createElement("div"),n=this.range.getDocument().createElement("ul");return t.className=e,t.appendChild(n),this.menuContainer?this.menuContainer.appendChild(t):this.range.getDocument().body.appendChild(t)}},{key:"showMenuFor",value:function(e,t){var n=this;if(!this.isActive||this.current.element!==e||this.current.mentionText!==this.currentMentionTextSnapshot){this.currentMentionTextSnapshot=this.current.mentionText,this.menu||(this.menu=this.createMenu(this.current.collection.containerClass),e.tributeMenu=this.menu,this.menuEvents.bind(this.menu)),this.isActive=!0,this.menuSelected=0,this.current.mentionText||(this.current.mentionText="");var r=function(e){if(n.isActive){var r=n.search.filter(n.current.mentionText,e,{pre:n.current.collection.searchOpts.pre||"<span>",post:n.current.collection.searchOpts.post||"</span>",skip:n.current.collection.searchOpts.skip,extract:function(e){if("string"==typeof n.current.collection.lookup)return e[n.current.collection.lookup];if("function"==typeof n.current.collection.lookup)return n.current.collection.lookup(e,n.current.mentionText);throw new Error("Invalid lookup attribute, lookup must be string or function.")}});n.current.collection.menuItemLimit&&(r=r.slice(0,n.current.collection.menuItemLimit)),n.current.filteredItems=r;var o=n.menu.querySelector("ul");if(!r.length){var u=new CustomEvent("tribute-no-match",{detail:n.menu});return n.current.element.dispatchEvent(u),void("function"==typeof n.current.collection.noMatchTemplate&&!n.current.collection.noMatchTemplate()||!n.current.collection.noMatchTemplate?n.hideMenu():("function"==typeof n.current.collection.noMatchTemplate?o.innerHTML=n.current.collection.noMatchTemplate():o.innerHTML=n.current.collection.noMatchTemplate,n.range.positionMenuAtCaret(t)))}o.innerHTML="";var a=n.range.getDocument().createDocumentFragment();r.forEach((function(e,t){var r=n.range.getDocument().createElement("li");r.setAttribute("data-index",t),r.className=n.current.collection.itemClass,r.addEventListener("mousemove",(function(e){var t=i(n._findLiTarget(e.target),2),r=(t[0],t[1]);0!==e.movementY&&n.events.setActiveLi(r)})),n.menuSelected===t&&r.classList.add(n.current.collection.selectClass),r.innerHTML=n.current.collection.menuItemTemplate(e),a.appendChild(r)})),o.appendChild(a),n.range.positionMenuAtCaret(t)}};"function"==typeof this.current.collection.values?(this.current.collection.loadingItemTemplate&&(this.menu.querySelector("ul").innerHTML=this.current.collection.loadingItemTemplate,this.range.positionMenuAtCaret(t)),this.current.collection.values(this.current.mentionText,r)):r(this.current.collection.values)}}},{key:"_findLiTarget",value:function(e){if(!e)return[];var t=e.getAttribute("data-index");return t?[e,t]:this._findLiTarget(e.parentNode)}},{key:"showMenuForCollection",value:function(e,t){e!==document.activeElement&&this.placeCaretAtEnd(e),this.current.collection=this.collection[t||0],this.current.externalTrigger=!0,this.current.element=e,e.isContentEditable?this.insertTextAtCursor(this.current.collection.trigger):this.insertAtCaret(e,this.current.collection.trigger),this.showMenuFor(e)}},{key:"placeCaretAtEnd",value:function(e){if(e.focus(),void 0!==window.getSelection&&void 0!==document.createRange){var t=document.createRange();t.selectNodeContents(e),t.collapse(!1);var n=window.getSelection();n.removeAllRanges(),n.addRange(t)}else if(void 0!==document.body.createTextRange){var i=document.body.createTextRange();i.moveToElementText(e),i.collapse(!1),i.select()}}},{key:"insertTextAtCursor",value:function(e){var t,n;(n=(t=window.getSelection()).getRangeAt(0)).deleteContents();var i=document.createTextNode(e);n.insertNode(i),n.selectNodeContents(i),n.collapse(!1),t.removeAllRanges(),t.addRange(n)}},{key:"insertAtCaret",value:function(e,t){var n=e.scrollTop,i=e.selectionStart,r=e.value.substring(0,i),o=e.value.substring(e.selectionEnd,e.value.length);e.value=r+t+o,i+=t.length,e.selectionStart=i,e.selectionEnd=i,e.focus(),e.scrollTop=n}},{key:"hideMenu",value:function(){this.menu&&(this.menu.style.cssText="display: none;",this.isActive=!1,this.menuSelected=0,this.current={})}},{key:"selectItemAtIndex",value:function(e,t){if("number"==typeof(e=parseInt(e))&&!isNaN(e)){var n=this.current.filteredItems[e],i=this.current.collection.selectTemplate(n);null!==i&&this.replaceText(i,t,n)}}},{key:"replaceText",value:function(e,t,n){this.range.replaceTriggerText(e,!0,!0,t,n)}},{key:"_append",value:function(e,t,n){if("function"==typeof e.values)throw new Error("Unable to append to values, as it is a function.");e.values=n?t:e.values.concat(t)}},{key:"append",value:function(e,t,n){var i=parseInt(e);if("number"!=typeof i)throw new Error("please provide an index for the collection to update.");var r=this.collection[i];this._append(r,t,n)}},{key:"appendCurrent",value:function(e,t){if(!this.isActive)throw new Error("No active state. Please use append instead and pass an index.");this._append(this.current.collection,e,t)}},{key:"detach",value:function(e){if(!e)throw new Error("[Tribute] Must pass in a DOM node or NodeList.");if("undefined"!=typeof jQuery&&e instanceof jQuery&&(e=e.get()),e.constructor===NodeList||e.constructor===HTMLCollection||e.constructor===Array)for(var t=e.length,n=0;n<t;++n)this._detach(e[n]);else this._detach(e)}},{key:"_detach",value:function(e){var t=this;this.events.unbind(e),e.tributeMenu&&this.menuEvents.unbind(e.tributeMenu),setTimeout((function(){e.removeAttribute("data-tribute"),t.isActive=!1,e.tributeMenu&&e.tributeMenu.remove()}))}},{key:"isActive",get:function(){return this._isActive},set:function(e){if(this._isActive!=e&&(this._isActive=e,this.current.element)){var t=new CustomEvent("tribute-active-".concat(e));this.current.element.dispatchEvent(t)}}}],[{key:"defaultSelectTemplate",value:function(e){return void 0===e?"".concat(this.current.collection.trigger).concat(this.current.mentionText):this.range.isContentEditable(this.current.element)?'<span class="tribute-mention">'+(this.current.collection.trigger+e.original[this.current.collection.fillAttr])+"</span>":this.current.collection.trigger+e.original[this.current.collection.fillAttr]}},{key:"defaultMenuItemTemplate",value:function(e){return e.string}},{key:"inputTypes",value:function(){return["TEXTAREA","INPUT"]}}]),t}()}));
//# sourceMappingURL=tribute.min.js.map
```
|
/content/code_sandbox/dist/tribute.min.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 8,133
|
```css
.tribute-container {
position: absolute;
top: 0;
left: 0;
height: auto;
overflow: auto;
display: block;
z-index: 999999;
}
.tribute-container ul {
margin: 0;
margin-top: 2px;
padding: 0;
list-style: none;
background: #efefef;
}
.tribute-container li {
padding: 5px 5px;
cursor: pointer;
}
.tribute-container li.highlight {
background: #ddd;
}
.tribute-container li span {
font-weight: bold;
}
.tribute-container li.no-match {
cursor: default;
}
.tribute-container .menu-highlighted {
font-weight: bold;
}
```
|
/content/code_sandbox/dist/tribute.css
|
css
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 161
|
```javascript
if (!Array.prototype.find) {
Array.prototype.find = function(predicate) {
if (this === null) {
throw new TypeError('Array.prototype.find called on null or undefined')
}
if (typeof predicate !== 'function') {
throw new TypeError('predicate must be a function')
}
var list = Object(this);
var length = list.length >>> 0;
var thisArg = arguments[1];
var value;
for (var i = 0; i < length; i++) {
value = list[i];
if (predicate.call(thisArg, value, i, list)) {
return value
}
}
return undefined
};
}
if (window && typeof window.CustomEvent !== "function") {
function CustomEvent$1(event, params) {
params = params || {
bubbles: false,
cancelable: false,
detail: undefined
};
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
return evt
}
if (typeof window.Event !== 'undefined') {
CustomEvent$1.prototype = window.Event.prototype;
}
window.CustomEvent = CustomEvent$1;
}
class TributeEvents {
constructor(tribute) {
this.tribute = tribute;
this.tribute.events = this;
}
static keys() {
return [
{
key: 9,
value: "TAB"
},
{
key: 8,
value: "DELETE"
},
{
key: 13,
value: "ENTER"
},
{
key: 27,
value: "ESCAPE"
},
{
key: 32,
value: "SPACE"
},
{
key: 38,
value: "UP"
},
{
key: 40,
value: "DOWN"
}
];
}
bind(element) {
element.boundKeydown = this.keydown.bind(element, this);
element.boundKeyup = this.keyup.bind(element, this);
element.boundInput = this.input.bind(element, this);
element.addEventListener("keydown", element.boundKeydown, false);
element.addEventListener("keyup", element.boundKeyup, false);
element.addEventListener("input", element.boundInput, false);
}
unbind(element) {
element.removeEventListener("keydown", element.boundKeydown, false);
element.removeEventListener("keyup", element.boundKeyup, false);
element.removeEventListener("input", element.boundInput, false);
delete element.boundKeydown;
delete element.boundKeyup;
delete element.boundInput;
}
keydown(instance, event) {
if (instance.shouldDeactivate(event)) {
instance.tribute.isActive = false;
instance.tribute.hideMenu();
}
let element = this;
instance.commandEvent = false;
TributeEvents.keys().forEach(o => {
if (o.key === event.keyCode) {
instance.commandEvent = true;
instance.callbacks()[o.value.toLowerCase()](event, element);
}
});
}
input(instance, event) {
instance.inputEvent = true;
instance.keyup.call(this, instance, event);
}
click(instance, event) {
let tribute = instance.tribute;
if (tribute.menu && tribute.menu.contains(event.target)) {
let li = event.target;
event.preventDefault();
event.stopPropagation();
while (li.nodeName.toLowerCase() !== "li") {
li = li.parentNode;
if (!li || li === tribute.menu) {
throw new Error("cannot find the <li> container for the click");
}
}
tribute.selectItemAtIndex(li.getAttribute("data-index"), event);
tribute.hideMenu();
// TODO: should fire with externalTrigger and target is outside of menu
} else if (tribute.current.element && !tribute.current.externalTrigger) {
tribute.current.externalTrigger = false;
setTimeout(() => tribute.hideMenu());
}
}
keyup(instance, event) {
if (instance.inputEvent) {
instance.inputEvent = false;
}
instance.updateSelection(this);
if (event.keyCode === 27) return;
if (!instance.tribute.allowSpaces && instance.tribute.hasTrailingSpace) {
instance.tribute.hasTrailingSpace = false;
instance.commandEvent = true;
instance.callbacks()["space"](event, this);
return;
}
if (!instance.tribute.isActive) {
if (instance.tribute.autocompleteMode) {
instance.callbacks().triggerChar(event, this, "");
} else {
let keyCode = instance.getKeyCode(instance, this, event);
if (isNaN(keyCode) || !keyCode) return;
let trigger = instance.tribute.triggers().find(trigger => {
return trigger.charCodeAt(0) === keyCode;
});
if (typeof trigger !== "undefined") {
instance.callbacks().triggerChar(event, this, trigger);
}
}
}
if (
instance.tribute.current.mentionText.length <
instance.tribute.current.collection.menuShowMinLength
) {
return;
}
if (
((instance.tribute.current.trigger ||
instance.tribute.autocompleteMode) &&
instance.commandEvent === false) ||
(instance.tribute.isActive && event.keyCode === 8)
) {
instance.tribute.showMenuFor(this, true);
}
}
shouldDeactivate(event) {
if (!this.tribute.isActive) return false;
if (this.tribute.current.mentionText.length === 0) {
let eventKeyPressed = false;
TributeEvents.keys().forEach(o => {
if (event.keyCode === o.key) eventKeyPressed = true;
});
return !eventKeyPressed;
}
return false;
}
getKeyCode(instance, el, event) {
let tribute = instance.tribute;
let info = tribute.range.getTriggerInfo(
false,
tribute.hasTrailingSpace,
true,
tribute.allowSpaces,
tribute.autocompleteMode
);
if (info) {
return info.mentionTriggerChar.charCodeAt(0);
} else {
return false;
}
}
updateSelection(el) {
this.tribute.current.element = el;
let info = this.tribute.range.getTriggerInfo(
false,
this.tribute.hasTrailingSpace,
true,
this.tribute.allowSpaces,
this.tribute.autocompleteMode
);
if (info) {
this.tribute.current.selectedPath = info.mentionSelectedPath;
this.tribute.current.mentionText = info.mentionText;
this.tribute.current.selectedOffset = info.mentionSelectedOffset;
}
}
callbacks() {
return {
triggerChar: (e, el, trigger) => {
let tribute = this.tribute;
tribute.current.trigger = trigger;
let collectionItem = tribute.collection.find(item => {
return item.trigger === trigger;
});
tribute.current.collection = collectionItem;
if (
tribute.current.mentionText.length >=
tribute.current.collection.menuShowMinLength &&
tribute.inputEvent
) {
tribute.showMenuFor(el, true);
}
},
enter: (e, el) => {
// choose selection
if (this.tribute.isActive && this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
setTimeout(() => {
this.tribute.selectItemAtIndex(this.tribute.menuSelected, e);
this.tribute.hideMenu();
}, 0);
}
},
escape: (e, el) => {
if (this.tribute.isActive) {
e.preventDefault();
e.stopPropagation();
this.tribute.isActive = false;
this.tribute.hideMenu();
}
},
tab: (e, el) => {
// choose first match
this.callbacks().enter(e, el);
},
space: (e, el) => {
if (this.tribute.isActive) {
if (this.tribute.spaceSelectsMatch) {
this.callbacks().enter(e, el);
} else if (!this.tribute.allowSpaces) {
e.stopPropagation();
setTimeout(() => {
this.tribute.hideMenu();
this.tribute.isActive = false;
}, 0);
}
}
},
up: (e, el) => {
// navigate up ul
if (this.tribute.isActive && this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
let count = this.tribute.current.filteredItems.length,
selected = this.tribute.menuSelected;
if (count > selected && selected > 0) {
this.tribute.menuSelected--;
this.setActiveLi();
} else if (selected === 0) {
this.tribute.menuSelected = count - 1;
this.setActiveLi();
this.tribute.menu.scrollTop = this.tribute.menu.scrollHeight;
}
}
},
down: (e, el) => {
// navigate down ul
if (this.tribute.isActive && this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
let count = this.tribute.current.filteredItems.length - 1,
selected = this.tribute.menuSelected;
if (count > selected) {
this.tribute.menuSelected++;
this.setActiveLi();
} else if (count === selected) {
this.tribute.menuSelected = 0;
this.setActiveLi();
this.tribute.menu.scrollTop = 0;
}
}
},
delete: (e, el) => {
if (
this.tribute.isActive &&
this.tribute.current.mentionText.length < 1
) {
this.tribute.hideMenu();
} else if (this.tribute.isActive) {
this.tribute.showMenuFor(el);
}
}
};
}
setActiveLi(index) {
let lis = this.tribute.menu.querySelectorAll("li"),
length = lis.length >>> 0;
if (index) this.tribute.menuSelected = parseInt(index);
for (let i = 0; i < length; i++) {
let li = lis[i];
if (i === this.tribute.menuSelected) {
li.classList.add(this.tribute.current.collection.selectClass);
let liClientRect = li.getBoundingClientRect();
let menuClientRect = this.tribute.menu.getBoundingClientRect();
if (liClientRect.bottom > menuClientRect.bottom) {
let scrollDistance = liClientRect.bottom - menuClientRect.bottom;
this.tribute.menu.scrollTop += scrollDistance;
} else if (liClientRect.top < menuClientRect.top) {
let scrollDistance = menuClientRect.top - liClientRect.top;
this.tribute.menu.scrollTop -= scrollDistance;
}
} else {
li.classList.remove(this.tribute.current.collection.selectClass);
}
}
}
getFullHeight(elem, includeMargin) {
let height = elem.getBoundingClientRect().height;
if (includeMargin) {
let style = elem.currentStyle || window.getComputedStyle(elem);
return (
height + parseFloat(style.marginTop) + parseFloat(style.marginBottom)
);
}
return height;
}
}
class TributeMenuEvents {
constructor(tribute) {
this.tribute = tribute;
this.tribute.menuEvents = this;
this.menu = this.tribute.menu;
}
bind(menu) {
this.menuClickEvent = this.tribute.events.click.bind(null, this);
this.menuContainerScrollEvent = this.debounce(
() => {
if (this.tribute.isActive) {
this.tribute.hideMenu();
}
},
10,
false
);
this.windowResizeEvent = this.debounce(
() => {
if (this.tribute.isActive) {
this.tribute.hideMenu();
}
},
10,
false
);
// fixes IE11 issues with mousedown
this.tribute.range
.getDocument()
.addEventListener("MSPointerDown", this.menuClickEvent, false);
this.tribute.range
.getDocument()
.addEventListener("mousedown", this.menuClickEvent, false);
window.addEventListener("resize", this.windowResizeEvent);
if (this.menuContainer) {
this.menuContainer.addEventListener(
"scroll",
this.menuContainerScrollEvent,
false
);
} else {
window.addEventListener("scroll", this.menuContainerScrollEvent);
}
}
unbind(menu) {
this.tribute.range
.getDocument()
.removeEventListener("mousedown", this.menuClickEvent, false);
this.tribute.range
.getDocument()
.removeEventListener("MSPointerDown", this.menuClickEvent, false);
window.removeEventListener("resize", this.windowResizeEvent);
if (this.menuContainer) {
this.menuContainer.removeEventListener(
"scroll",
this.menuContainerScrollEvent,
false
);
} else {
window.removeEventListener("scroll", this.menuContainerScrollEvent);
}
}
debounce(func, wait, immediate) {
var timeout;
return () => {
var context = this,
args = arguments;
var later = () => {
timeout = null;
if (!immediate) func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
}
}
// Thanks to path_to_url
class TributeRange {
constructor(tribute) {
this.tribute = tribute;
this.tribute.range = this;
}
getDocument() {
let iframe;
if (this.tribute.current.collection) {
iframe = this.tribute.current.collection.iframe;
}
if (!iframe) {
return document
}
return iframe.contentWindow.document
}
positionMenuAtCaret(scrollTo) {
let context = this.tribute.current,
coordinates;
let info = this.getTriggerInfo(false, this.tribute.hasTrailingSpace, true, this.tribute.allowSpaces, this.tribute.autocompleteMode);
if (typeof info !== 'undefined') {
if(!this.tribute.positionMenu){
this.tribute.menu.style.cssText = `display: block;`;
return
}
if (!this.isContentEditable(context.element)) {
coordinates = this.getTextAreaOrInputUnderlinePosition(this.tribute.current.element,
info.mentionPosition);
}
else {
coordinates = this.getContentEditableCaretPosition(info.mentionPosition);
}
this.tribute.menu.style.cssText = `top: ${coordinates.top}px;
left: ${coordinates.left}px;
right: ${coordinates.right}px;
bottom: ${coordinates.bottom}px;
max-height: ${coordinates.maxHeight || 500}px;
max-width: ${coordinates.maxWidth || 300}px;
position: ${coordinates.position || 'absolute'};
display: block;`;
if (coordinates.left === 'auto') {
this.tribute.menu.style.left = 'auto';
}
if (coordinates.top === 'auto') {
this.tribute.menu.style.top = 'auto';
}
if (scrollTo) this.scrollIntoView();
} else {
this.tribute.menu.style.cssText = 'display: none';
}
}
get menuContainerIsBody() {
return this.tribute.menuContainer === document.body || !this.tribute.menuContainer;
}
selectElement(targetElement, path, offset) {
let range;
let elem = targetElement;
if (path) {
for (var i = 0; i < path.length; i++) {
elem = elem.childNodes[path[i]];
if (elem === undefined) {
return
}
while (elem.length < offset) {
offset -= elem.length;
elem = elem.nextSibling;
}
if (elem.childNodes.length === 0 && !elem.length) {
elem = elem.previousSibling;
}
}
}
let sel = this.getWindowSelection();
range = this.getDocument().createRange();
range.setStart(elem, offset);
range.setEnd(elem, offset);
range.collapse(true);
try {
sel.removeAllRanges();
} catch (error) {}
sel.addRange(range);
targetElement.focus();
}
replaceTriggerText(text, requireLeadingSpace, hasTrailingSpace, originalEvent, item) {
let info = this.getTriggerInfo(true, hasTrailingSpace, requireLeadingSpace, this.tribute.allowSpaces, this.tribute.autocompleteMode);
if (info !== undefined) {
let context = this.tribute.current;
let replaceEvent = new CustomEvent('tribute-replaced', {
detail: {
item: item,
instance: context,
context: info,
event: originalEvent,
}
});
if (!this.isContentEditable(context.element)) {
let myField = this.tribute.current.element;
let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'
? this.tribute.replaceTextSuffix
: ' ';
text += textSuffix;
let startPos = info.mentionPosition;
let endPos = info.mentionPosition + info.mentionText.length + textSuffix.length;
if (!this.tribute.autocompleteMode) {
endPos += info.mentionTriggerChar.length - 1;
}
myField.value = myField.value.substring(0, startPos) + text +
myField.value.substring(endPos, myField.value.length);
myField.selectionStart = startPos + text.length;
myField.selectionEnd = startPos + text.length;
} else {
// add a space to the end of the pasted text
let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'
? this.tribute.replaceTextSuffix
: '\xA0';
text += textSuffix;
let endPos = info.mentionPosition + info.mentionText.length;
if (!this.tribute.autocompleteMode) {
endPos += info.mentionTriggerChar.length;
}
this.pasteHtml(text, info.mentionPosition, endPos);
}
context.element.dispatchEvent(new CustomEvent('input', { bubbles: true }));
context.element.dispatchEvent(replaceEvent);
}
}
pasteHtml(html, startPos, endPos) {
let range, sel;
sel = this.getWindowSelection();
range = this.getDocument().createRange();
range.setStart(sel.anchorNode, startPos);
range.setEnd(sel.anchorNode, endPos);
range.deleteContents();
let el = this.getDocument().createElement('div');
el.innerHTML = html;
let frag = this.getDocument().createDocumentFragment(),
node, lastNode;
while ((node = el.firstChild)) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag);
// Preserve the selection
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
getWindowSelection() {
if (this.tribute.collection.iframe) {
return this.tribute.collection.iframe.contentWindow.getSelection()
}
return window.getSelection()
}
getNodePositionInParent(element) {
if (element.parentNode === null) {
return 0
}
for (var i = 0; i < element.parentNode.childNodes.length; i++) {
let node = element.parentNode.childNodes[i];
if (node === element) {
return i
}
}
}
getContentEditableSelectedPath(ctx) {
let sel = this.getWindowSelection();
let selected = sel.anchorNode;
let path = [];
let offset;
if (selected != null) {
let i;
let ce = selected.contentEditable;
while (selected !== null && ce !== 'true') {
i = this.getNodePositionInParent(selected);
path.push(i);
selected = selected.parentNode;
if (selected !== null) {
ce = selected.contentEditable;
}
}
path.reverse();
// getRangeAt may not exist, need alternative
offset = sel.getRangeAt(0).startOffset;
return {
selected: selected,
path: path,
offset: offset
}
}
}
getTextPrecedingCurrentSelection() {
let context = this.tribute.current,
text = '';
if (!this.isContentEditable(context.element)) {
let textComponent = this.tribute.current.element;
if (textComponent) {
let startPos = textComponent.selectionStart;
if (textComponent.value && startPos >= 0) {
text = textComponent.value.substring(0, startPos);
}
}
} else {
let selectedElem = this.getWindowSelection().anchorNode;
if (selectedElem != null) {
let workingNodeContent = selectedElem.textContent;
let selectStartOffset = this.getWindowSelection().getRangeAt(0).startOffset;
if (workingNodeContent && selectStartOffset >= 0) {
text = workingNodeContent.substring(0, selectStartOffset);
}
}
}
return text
}
getLastWordInText(text) {
text = text.replace(/\u00A0/g, ' '); // path_to_url
var wordsArray;
if (this.tribute.autocompleteSeparator) {
wordsArray = text.split(this.tribute.autocompleteSeparator);
} else {
wordsArray = text.split(/\s+/);
}
var worldsCount = wordsArray.length - 1;
return wordsArray[worldsCount].trim();
}
getTriggerInfo(menuAlreadyActive, hasTrailingSpace, requireLeadingSpace, allowSpaces, isAutocomplete) {
let ctx = this.tribute.current;
let selected, path, offset;
if (!this.isContentEditable(ctx.element)) {
selected = this.tribute.current.element;
} else {
let selectionInfo = this.getContentEditableSelectedPath(ctx);
if (selectionInfo) {
selected = selectionInfo.selected;
path = selectionInfo.path;
offset = selectionInfo.offset;
}
}
let effectiveRange = this.getTextPrecedingCurrentSelection();
let lastWordOfEffectiveRange = this.getLastWordInText(effectiveRange);
if (isAutocomplete) {
return {
mentionPosition: effectiveRange.length - lastWordOfEffectiveRange.length,
mentionText: lastWordOfEffectiveRange,
mentionSelectedElement: selected,
mentionSelectedPath: path,
mentionSelectedOffset: offset
}
}
if (effectiveRange !== undefined && effectiveRange !== null) {
let mostRecentTriggerCharPos = -1;
let triggerChar;
this.tribute.collection.forEach(config => {
let c = config.trigger;
let idx = config.requireLeadingSpace ?
this.lastIndexWithLeadingSpace(effectiveRange, c) :
effectiveRange.lastIndexOf(c);
if (idx > mostRecentTriggerCharPos) {
mostRecentTriggerCharPos = idx;
triggerChar = c;
requireLeadingSpace = config.requireLeadingSpace;
}
});
if (mostRecentTriggerCharPos >= 0 &&
(
mostRecentTriggerCharPos === 0 ||
!requireLeadingSpace ||
/[\xA0\s]/g.test(
effectiveRange.substring(
mostRecentTriggerCharPos - 1,
mostRecentTriggerCharPos)
)
)
) {
let currentTriggerSnippet = effectiveRange.substring(mostRecentTriggerCharPos + triggerChar.length,
effectiveRange.length);
triggerChar = effectiveRange.substring(mostRecentTriggerCharPos, mostRecentTriggerCharPos + triggerChar.length);
let firstSnippetChar = currentTriggerSnippet.substring(0, 1);
let leadingSpace = currentTriggerSnippet.length > 0 &&
(
firstSnippetChar === ' ' ||
firstSnippetChar === '\xA0'
);
if (hasTrailingSpace) {
currentTriggerSnippet = currentTriggerSnippet.trim();
}
let regex = allowSpaces ? /[^\S ]/g : /[\xA0\s]/g;
this.tribute.hasTrailingSpace = regex.test(currentTriggerSnippet);
if (!leadingSpace && (menuAlreadyActive || !(regex.test(currentTriggerSnippet)))) {
return {
mentionPosition: mostRecentTriggerCharPos,
mentionText: currentTriggerSnippet,
mentionSelectedElement: selected,
mentionSelectedPath: path,
mentionSelectedOffset: offset,
mentionTriggerChar: triggerChar
}
}
}
}
}
lastIndexWithLeadingSpace (str, trigger) {
let reversedStr = str.split('').reverse().join('');
let index = -1;
for (let cidx = 0, len = str.length; cidx < len; cidx++) {
let firstChar = cidx === str.length - 1;
let leadingSpace = /\s/.test(reversedStr[cidx + 1]);
let match = true;
for (let triggerIdx = trigger.length - 1; triggerIdx >= 0; triggerIdx--) {
if (trigger[triggerIdx] !== reversedStr[cidx-triggerIdx]) {
match = false;
break
}
}
if (match && (firstChar || leadingSpace)) {
index = str.length - 1 - cidx;
break
}
}
return index
}
isContentEditable(element) {
return element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA'
}
isMenuOffScreen(coordinates, menuDimensions) {
let windowWidth = window.innerWidth;
let windowHeight = window.innerHeight;
let doc = document.documentElement;
let windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0);
let windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0);
let menuTop = typeof coordinates.top === 'number' ? coordinates.top : windowTop + windowHeight - coordinates.bottom - menuDimensions.height;
let menuRight = typeof coordinates.right === 'number' ? coordinates.right : coordinates.left + menuDimensions.width;
let menuBottom = typeof coordinates.bottom === 'number' ? coordinates.bottom : coordinates.top + menuDimensions.height;
let menuLeft = typeof coordinates.left === 'number' ? coordinates.left : windowLeft + windowWidth - coordinates.right - menuDimensions.width;
return {
top: menuTop < Math.floor(windowTop),
right: menuRight > Math.ceil(windowLeft + windowWidth),
bottom: menuBottom > Math.ceil(windowTop + windowHeight),
left: menuLeft < Math.floor(windowLeft)
}
}
getMenuDimensions() {
// Width of the menu depends of its contents and position
// We must check what its width would be without any obstruction
// This way, we can achieve good positioning for flipping the menu
let dimensions = {
width: null,
height: null
};
this.tribute.menu.style.cssText = `top: 0px;
left: 0px;
position: fixed;
display: block;
visibility; hidden;
max-height:500px;`;
dimensions.width = this.tribute.menu.offsetWidth;
dimensions.height = this.tribute.menu.offsetHeight;
this.tribute.menu.style.cssText = `display: none;`;
return dimensions
}
getTextAreaOrInputUnderlinePosition(element, position, flipped) {
let properties = ['direction', 'boxSizing', 'width', 'height', 'overflowX',
'overflowY', 'borderTopWidth', 'borderRightWidth',
'borderBottomWidth', 'borderLeftWidth', 'borderStyle', 'paddingTop',
'paddingRight', 'paddingBottom', 'paddingLeft',
'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch',
'fontSize', 'fontSizeAdjust', 'lineHeight', 'fontFamily',
'textAlign', 'textTransform', 'textIndent',
'textDecoration', 'letterSpacing', 'wordSpacing'
];
let div = this.getDocument().createElement('div');
div.id = 'input-textarea-caret-position-mirror-div';
this.getDocument().body.appendChild(div);
let style = div.style;
let computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle;
style.whiteSpace = 'pre-wrap';
if (element.nodeName !== 'INPUT') {
style.wordWrap = 'break-word';
}
style.position = 'absolute';
style.visibility = 'hidden';
// transfer the element's properties to the div
properties.forEach(prop => {
style[prop] = computed[prop];
});
//NOT SURE WHY THIS IS HERE AND IT DOESNT SEEM HELPFUL
// if (isFirefox) {
// style.width = `${(parseInt(computed.width) - 2)}px`
// if (element.scrollHeight > parseInt(computed.height))
// style.overflowY = 'scroll'
// } else {
// style.overflow = 'hidden'
// }
let span0 = document.createElement('span');
span0.textContent = element.value.substring(0, position);
div.appendChild(span0);
if (element.nodeName === 'INPUT') {
div.textContent = div.textContent.replace(/\s/g, '');
}
//Create a span in the div that represents where the cursor
//should be
let span = this.getDocument().createElement('span');
//we give it no content as this represents the cursor
span.textContent = '​';
div.appendChild(span);
let span2 = this.getDocument().createElement('span');
span2.textContent = element.value.substring(position);
div.appendChild(span2);
let rect = element.getBoundingClientRect();
//position the div exactly over the element
//so we can get the bounding client rect for the span and
//it should represent exactly where the cursor is
div.style.position = 'fixed';
div.style.left = rect.left + 'px';
div.style.top = rect.top + 'px';
div.style.width = rect.width + 'px';
div.style.height = rect.height + 'px';
div.scrollTop = element.scrollTop;
var spanRect = span.getBoundingClientRect();
this.getDocument().body.removeChild(div);
return this.getFixedCoordinatesRelativeToRect(spanRect);
}
getContentEditableCaretPosition(selectedNodePosition) {
let range;
let sel = this.getWindowSelection();
range = this.getDocument().createRange();
range.setStart(sel.anchorNode, selectedNodePosition);
range.setEnd(sel.anchorNode, selectedNodePosition);
range.collapse(false);
let rect = range.getBoundingClientRect();
return this.getFixedCoordinatesRelativeToRect(rect);
}
getFixedCoordinatesRelativeToRect(rect) {
let coordinates = {
position: 'fixed',
left: rect.left,
top: rect.top + rect.height
};
let menuDimensions = this.getMenuDimensions();
var availableSpaceOnTop = rect.top;
var availableSpaceOnBottom = window.innerHeight - (rect.top + rect.height);
//check to see where's the right place to put the menu vertically
if (availableSpaceOnBottom < menuDimensions.height) {
if (availableSpaceOnTop >= menuDimensions.height || availableSpaceOnTop > availableSpaceOnBottom) {
coordinates.top = 'auto';
coordinates.bottom = window.innerHeight - rect.top;
if (availableSpaceOnBottom < menuDimensions.height) {
coordinates.maxHeight = availableSpaceOnTop;
}
} else {
if (availableSpaceOnTop < menuDimensions.height) {
coordinates.maxHeight = availableSpaceOnBottom;
}
}
}
var availableSpaceOnLeft = rect.left;
var availableSpaceOnRight = window.innerWidth - rect.left;
//check to see where's the right place to put the menu horizontally
if (availableSpaceOnRight < menuDimensions.width) {
if (availableSpaceOnLeft >= menuDimensions.width || availableSpaceOnLeft > availableSpaceOnRight) {
coordinates.left = 'auto';
coordinates.right = window.innerWidth - rect.left;
if (availableSpaceOnRight < menuDimensions.width) {
coordinates.maxWidth = availableSpaceOnLeft;
}
} else {
if (availableSpaceOnLeft < menuDimensions.width) {
coordinates.maxWidth = availableSpaceOnRight;
}
}
}
return coordinates
}
scrollIntoView(elem) {
let reasonableBuffer = 20,
clientRect;
let maxScrollDisplacement = 100;
let e = this.menu;
if (typeof e === 'undefined') return;
while (clientRect === undefined || clientRect.height === 0) {
clientRect = e.getBoundingClientRect();
if (clientRect.height === 0) {
e = e.childNodes[0];
if (e === undefined || !e.getBoundingClientRect) {
return
}
}
}
let elemTop = clientRect.top;
let elemBottom = elemTop + clientRect.height;
if (elemTop < 0) {
window.scrollTo(0, window.pageYOffset + clientRect.top - reasonableBuffer);
} else if (elemBottom > window.innerHeight) {
let maxY = window.pageYOffset + clientRect.top - reasonableBuffer;
if (maxY - window.pageYOffset > maxScrollDisplacement) {
maxY = window.pageYOffset + maxScrollDisplacement;
}
let targetY = window.pageYOffset - (window.innerHeight - elemBottom);
if (targetY > maxY) {
targetY = maxY;
}
window.scrollTo(0, targetY);
}
}
}
// Thanks to path_to_url
class TributeSearch {
constructor(tribute) {
this.tribute = tribute;
this.tribute.search = this;
}
simpleFilter(pattern, array) {
return array.filter(string => {
return this.test(pattern, string)
})
}
test(pattern, string) {
return this.match(pattern, string) !== null
}
match(pattern, string, opts) {
opts = opts || {};
let len = string.length,
pre = opts.pre || '',
post = opts.post || '',
compareString = opts.caseSensitive && string || string.toLowerCase();
if (opts.skip) {
return {rendered: string, score: 0}
}
pattern = opts.caseSensitive && pattern || pattern.toLowerCase();
let patternCache = this.traverse(compareString, pattern, 0, 0, []);
if (!patternCache) {
return null
}
return {
rendered: this.render(string, patternCache.cache, pre, post),
score: patternCache.score
}
}
traverse(string, pattern, stringIndex, patternIndex, patternCache) {
if (this.tribute.autocompleteSeparator) {
// if the pattern search at end
pattern = pattern.split(this.tribute.autocompleteSeparator).splice(-1)[0];
}
if (pattern.length === patternIndex) {
// calculate score and copy the cache containing the indices where it's found
return {
score: this.calculateScore(patternCache),
cache: patternCache.slice()
}
}
// if string at end or remaining pattern > remaining string
if (string.length === stringIndex || pattern.length - patternIndex > string.length - stringIndex) {
return undefined
}
let c = pattern[patternIndex];
let index = string.indexOf(c, stringIndex);
let best, temp;
while (index > -1) {
patternCache.push(index);
temp = this.traverse(string, pattern, index + 1, patternIndex + 1, patternCache);
patternCache.pop();
// if downstream traversal failed, return best answer so far
if (!temp) {
return best
}
if (!best || best.score < temp.score) {
best = temp;
}
index = string.indexOf(c, index + 1);
}
return best
}
calculateScore(patternCache) {
let score = 0;
let temp = 1;
patternCache.forEach((index, i) => {
if (i > 0) {
if (patternCache[i - 1] + 1 === index) {
temp += temp + 1;
}
else {
temp = 1;
}
}
score += temp;
});
return score
}
render(string, indices, pre, post) {
var rendered = string.substring(0, indices[0]);
indices.forEach((index, i) => {
rendered += pre + string[index] + post +
string.substring(index + 1, (indices[i + 1]) ? indices[i + 1] : string.length);
});
return rendered
}
filter(pattern, arr, opts) {
opts = opts || {};
return arr
.reduce((prev, element, idx, arr) => {
let str = element;
if (opts.extract) {
str = opts.extract(element);
if (!str) { // take care of undefineds / nulls / etc.
str = '';
}
}
let rendered = this.match(pattern, str, opts);
if (rendered != null) {
prev[prev.length] = {
string: rendered.rendered,
score: rendered.score,
index: idx,
original: element
};
}
return prev
}, [])
.sort((a, b) => {
let compare = b.score - a.score;
if (compare) return compare
return a.index - b.index
})
}
}
class Tribute {
constructor({
values = null,
loadingItemTemplate = null,
iframe = null,
selectClass = "highlight",
containerClass = "tribute-container",
itemClass = "",
trigger = "@",
autocompleteMode = false,
autocompleteSeparator = null,
selectTemplate = null,
menuItemTemplate = null,
lookup = "key",
fillAttr = "value",
collection = null,
menuContainer = null,
noMatchTemplate = null,
requireLeadingSpace = true,
allowSpaces = false,
replaceTextSuffix = null,
positionMenu = true,
spaceSelectsMatch = false,
searchOpts = {},
menuItemLimit = null,
menuShowMinLength = 0
}) {
this.autocompleteMode = autocompleteMode;
this.autocompleteSeparator = autocompleteSeparator;
this.menuSelected = 0;
this.current = {};
this.inputEvent = false;
this.isActive = false;
this.menuContainer = menuContainer;
this.allowSpaces = allowSpaces;
this.replaceTextSuffix = replaceTextSuffix;
this.positionMenu = positionMenu;
this.hasTrailingSpace = false;
this.spaceSelectsMatch = spaceSelectsMatch;
if (this.autocompleteMode) {
trigger = "";
allowSpaces = false;
}
if (values) {
this.collection = [
{
// symbol that starts the lookup
trigger: trigger,
// is it wrapped in an iframe
iframe: iframe,
// class applied to selected item
selectClass: selectClass,
// class applied to the Container
containerClass: containerClass,
// class applied to each item
itemClass: itemClass,
// function called on select that retuns the content to insert
selectTemplate: (
selectTemplate || Tribute.defaultSelectTemplate
).bind(this),
// function called that returns content for an item
menuItemTemplate: (
menuItemTemplate || Tribute.defaultMenuItemTemplate
).bind(this),
// function called when menu is empty, disables hiding of menu.
noMatchTemplate: (t => {
if (typeof t === "string") {
if (t.trim() === "") return null;
return t;
}
if (typeof t === "function") {
return t.bind(this);
}
return (
noMatchTemplate ||
function() {
return "<li>No Match Found!</li>";
}.bind(this)
);
})(noMatchTemplate),
// column to search against in the object
lookup: lookup,
// column that contains the content to insert by default
fillAttr: fillAttr,
// array of objects or a function returning an array of objects
values: values,
// useful for when values is an async function
loadingItemTemplate: loadingItemTemplate,
requireLeadingSpace: requireLeadingSpace,
searchOpts: searchOpts,
menuItemLimit: menuItemLimit,
menuShowMinLength: menuShowMinLength
}
];
} else if (collection) {
if (this.autocompleteMode)
console.warn(
"Tribute in autocomplete mode does not work for collections"
);
this.collection = collection.map(item => {
return {
trigger: item.trigger || trigger,
iframe: item.iframe || iframe,
selectClass: item.selectClass || selectClass,
containerClass: item.containerClass || containerClass,
itemClass: item.itemClass || itemClass,
selectTemplate: (
item.selectTemplate || Tribute.defaultSelectTemplate
).bind(this),
menuItemTemplate: (
item.menuItemTemplate || Tribute.defaultMenuItemTemplate
).bind(this),
// function called when menu is empty, disables hiding of menu.
noMatchTemplate: (t => {
if (typeof t === "string") {
if (t.trim() === "") return null;
return t;
}
if (typeof t === "function") {
return t.bind(this);
}
return (
noMatchTemplate ||
function() {
return "<li>No Match Found!</li>";
}.bind(this)
);
})(noMatchTemplate),
lookup: item.lookup || lookup,
fillAttr: item.fillAttr || fillAttr,
values: item.values,
loadingItemTemplate: item.loadingItemTemplate,
requireLeadingSpace: item.requireLeadingSpace,
searchOpts: item.searchOpts || searchOpts,
menuItemLimit: item.menuItemLimit || menuItemLimit,
menuShowMinLength: item.menuShowMinLength || menuShowMinLength
};
});
} else {
throw new Error("[Tribute] No collection specified.");
}
new TributeRange(this);
new TributeEvents(this);
new TributeMenuEvents(this);
new TributeSearch(this);
}
get isActive() {
return this._isActive;
}
set isActive(val) {
if (this._isActive != val) {
this._isActive = val;
if (this.current.element) {
let noMatchEvent = new CustomEvent(`tribute-active-${val}`);
this.current.element.dispatchEvent(noMatchEvent);
}
}
}
static defaultSelectTemplate(item) {
if (typeof item === "undefined")
return `${this.current.collection.trigger}${this.current.mentionText}`;
if (this.range.isContentEditable(this.current.element)) {
return (
'<span class="tribute-mention">' +
(this.current.collection.trigger +
item.original[this.current.collection.fillAttr]) +
"</span>"
);
}
return (
this.current.collection.trigger +
item.original[this.current.collection.fillAttr]
);
}
static defaultMenuItemTemplate(matchItem) {
return matchItem.string;
}
static inputTypes() {
return ["TEXTAREA", "INPUT"];
}
triggers() {
return this.collection.map(config => {
return config.trigger;
});
}
attach(el) {
if (!el) {
throw new Error("[Tribute] Must pass in a DOM node or NodeList.");
}
// Check if it is a jQuery collection
if (typeof jQuery !== "undefined" && el instanceof jQuery) {
el = el.get();
}
// Is el an Array/Array-like object?
if (
el.constructor === NodeList ||
el.constructor === HTMLCollection ||
el.constructor === Array
) {
let length = el.length;
for (var i = 0; i < length; ++i) {
this._attach(el[i]);
}
} else {
this._attach(el);
}
}
_attach(el) {
if (el.hasAttribute("data-tribute")) {
console.warn("Tribute was already bound to " + el.nodeName);
}
this.ensureEditable(el);
this.events.bind(el);
el.setAttribute("data-tribute", true);
}
ensureEditable(element) {
if (Tribute.inputTypes().indexOf(element.nodeName) === -1) {
if (element.contentEditable) {
element.contentEditable = true;
} else {
throw new Error("[Tribute] Cannot bind to " + element.nodeName);
}
}
}
createMenu(containerClass) {
let wrapper = this.range.getDocument().createElement("div"),
ul = this.range.getDocument().createElement("ul");
wrapper.className = containerClass;
wrapper.appendChild(ul);
if (this.menuContainer) {
return this.menuContainer.appendChild(wrapper);
}
return this.range.getDocument().body.appendChild(wrapper);
}
showMenuFor(element, scrollTo) {
// Only proceed if menu isn't already shown for the current element & mentionText
if (
this.isActive &&
this.current.element === element &&
this.current.mentionText === this.currentMentionTextSnapshot
) {
return;
}
this.currentMentionTextSnapshot = this.current.mentionText;
// create the menu if it doesn't exist.
if (!this.menu) {
this.menu = this.createMenu(this.current.collection.containerClass);
element.tributeMenu = this.menu;
this.menuEvents.bind(this.menu);
}
this.isActive = true;
this.menuSelected = 0;
if (!this.current.mentionText) {
this.current.mentionText = "";
}
const processValues = values => {
// Tribute may not be active any more by the time the value callback returns
if (!this.isActive) {
return;
}
let items = this.search.filter(this.current.mentionText, values, {
pre: this.current.collection.searchOpts.pre || "<span>",
post: this.current.collection.searchOpts.post || "</span>",
skip: this.current.collection.searchOpts.skip,
extract: el => {
if (typeof this.current.collection.lookup === "string") {
return el[this.current.collection.lookup];
} else if (typeof this.current.collection.lookup === "function") {
return this.current.collection.lookup(el, this.current.mentionText);
} else {
throw new Error(
"Invalid lookup attribute, lookup must be string or function."
);
}
}
});
if (this.current.collection.menuItemLimit) {
items = items.slice(0, this.current.collection.menuItemLimit);
}
this.current.filteredItems = items;
let ul = this.menu.querySelector("ul");
if (!items.length) {
let noMatchEvent = new CustomEvent("tribute-no-match", {
detail: this.menu
});
this.current.element.dispatchEvent(noMatchEvent);
if (
(typeof this.current.collection.noMatchTemplate === "function" &&
!this.current.collection.noMatchTemplate()) ||
!this.current.collection.noMatchTemplate
) {
this.hideMenu();
} else {
typeof this.current.collection.noMatchTemplate === "function"
? (ul.innerHTML = this.current.collection.noMatchTemplate())
: (ul.innerHTML = this.current.collection.noMatchTemplate);
this.range.positionMenuAtCaret(scrollTo);
}
return;
}
ul.innerHTML = "";
let fragment = this.range.getDocument().createDocumentFragment();
items.forEach((item, index) => {
let li = this.range.getDocument().createElement("li");
li.setAttribute("data-index", index);
li.className = this.current.collection.itemClass;
li.addEventListener("mousemove", e => {
let [li, index] = this._findLiTarget(e.target);
if (e.movementY !== 0) {
this.events.setActiveLi(index);
}
});
if (this.menuSelected === index) {
li.classList.add(this.current.collection.selectClass);
}
li.innerHTML = this.current.collection.menuItemTemplate(item);
fragment.appendChild(li);
});
ul.appendChild(fragment);
this.range.positionMenuAtCaret(scrollTo);
};
if (typeof this.current.collection.values === "function") {
if (this.current.collection.loadingItemTemplate) {
this.menu.querySelector("ul").innerHTML = this.current.collection.loadingItemTemplate;
this.range.positionMenuAtCaret(scrollTo);
}
this.current.collection.values(this.current.mentionText, processValues);
} else {
processValues(this.current.collection.values);
}
}
_findLiTarget(el) {
if (!el) return [];
const index = el.getAttribute("data-index");
return !index ? this._findLiTarget(el.parentNode) : [el, index];
}
showMenuForCollection(element, collectionIndex) {
if (element !== document.activeElement) {
this.placeCaretAtEnd(element);
}
this.current.collection = this.collection[collectionIndex || 0];
this.current.externalTrigger = true;
this.current.element = element;
if (element.isContentEditable)
this.insertTextAtCursor(this.current.collection.trigger);
else this.insertAtCaret(element, this.current.collection.trigger);
this.showMenuFor(element);
}
// TODO: make sure this works for inputs/textareas
placeCaretAtEnd(el) {
el.focus();
if (
typeof window.getSelection != "undefined" &&
typeof document.createRange != "undefined"
) {
var range = document.createRange();
range.selectNodeContents(el);
range.collapse(false);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
} else if (typeof document.body.createTextRange != "undefined") {
var textRange = document.body.createTextRange();
textRange.moveToElementText(el);
textRange.collapse(false);
textRange.select();
}
}
// for contenteditable
insertTextAtCursor(text) {
var sel, range;
sel = window.getSelection();
range = sel.getRangeAt(0);
range.deleteContents();
var textNode = document.createTextNode(text);
range.insertNode(textNode);
range.selectNodeContents(textNode);
range.collapse(false);
sel.removeAllRanges();
sel.addRange(range);
}
// for regular inputs
insertAtCaret(textarea, text) {
var scrollPos = textarea.scrollTop;
var caretPos = textarea.selectionStart;
var front = textarea.value.substring(0, caretPos);
var back = textarea.value.substring(
textarea.selectionEnd,
textarea.value.length
);
textarea.value = front + text + back;
caretPos = caretPos + text.length;
textarea.selectionStart = caretPos;
textarea.selectionEnd = caretPos;
textarea.focus();
textarea.scrollTop = scrollPos;
}
hideMenu() {
if (this.menu) {
this.menu.style.cssText = "display: none;";
this.isActive = false;
this.menuSelected = 0;
this.current = {};
}
}
selectItemAtIndex(index, originalEvent) {
index = parseInt(index);
if (typeof index !== "number" || isNaN(index)) return;
let item = this.current.filteredItems[index];
let content = this.current.collection.selectTemplate(item);
if (content !== null) this.replaceText(content, originalEvent, item);
}
replaceText(content, originalEvent, item) {
this.range.replaceTriggerText(content, true, true, originalEvent, item);
}
_append(collection, newValues, replace) {
if (typeof collection.values === "function") {
throw new Error("Unable to append to values, as it is a function.");
} else if (!replace) {
collection.values = collection.values.concat(newValues);
} else {
collection.values = newValues;
}
}
append(collectionIndex, newValues, replace) {
let index = parseInt(collectionIndex);
if (typeof index !== "number")
throw new Error("please provide an index for the collection to update.");
let collection = this.collection[index];
this._append(collection, newValues, replace);
}
appendCurrent(newValues, replace) {
if (this.isActive) {
this._append(this.current.collection, newValues, replace);
} else {
throw new Error(
"No active state. Please use append instead and pass an index."
);
}
}
detach(el) {
if (!el) {
throw new Error("[Tribute] Must pass in a DOM node or NodeList.");
}
// Check if it is a jQuery collection
if (typeof jQuery !== "undefined" && el instanceof jQuery) {
el = el.get();
}
// Is el an Array/Array-like object?
if (
el.constructor === NodeList ||
el.constructor === HTMLCollection ||
el.constructor === Array
) {
let length = el.length;
for (var i = 0; i < length; ++i) {
this._detach(el[i]);
}
} else {
this._detach(el);
}
}
_detach(el) {
this.events.unbind(el);
if (el.tributeMenu) {
this.menuEvents.unbind(el.tributeMenu);
}
setTimeout(() => {
el.removeAttribute("data-tribute");
this.isActive = false;
if (el.tributeMenu) {
el.tributeMenu.remove();
}
});
}
}
/**
* Tribute.js
* Native ES6 JavaScript @mention Plugin
**/
export default Tribute;
```
|
/content/code_sandbox/dist/tribute.esm.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 11,448
|
```javascript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.Tribute = factory());
}(this, (function () { 'use strict';
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;
}
function _slicedToArray(arr, i) {
return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest();
}
function _arrayWithHoles(arr) {
if (Array.isArray(arr)) return arr;
}
function _iterableToArrayLimit(arr, i) {
if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
var _arr = [];
var _n = true;
var _d = false;
var _e = undefined;
try {
for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
_arr.push(_s.value);
if (i && _arr.length === i) break;
}
} catch (err) {
_d = true;
_e = err;
} finally {
try {
if (!_n && _i["return"] != null) _i["return"]();
} finally {
if (_d) throw _e;
}
}
return _arr;
}
function _unsupportedIterableToArray(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(n);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _nonIterableRest() {
throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
if (!Array.prototype.find) {
Array.prototype.find = function (predicate) {
if (this === null) {
throw new TypeError('Array.prototype.find called on null or undefined');
}
if (typeof predicate !== 'function') {
throw new TypeError('predicate must be a function');
}
var list = Object(this);
var length = list.length >>> 0;
var thisArg = arguments[1];
var value;
for (var i = 0; i < length; i++) {
value = list[i];
if (predicate.call(thisArg, value, i, list)) {
return value;
}
}
return undefined;
};
}
if (window && typeof window.CustomEvent !== "function") {
var CustomEvent$1 = function CustomEvent(event, params) {
params = params || {
bubbles: false,
cancelable: false,
detail: undefined
};
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
return evt;
};
if (typeof window.Event !== 'undefined') {
CustomEvent$1.prototype = window.Event.prototype;
}
window.CustomEvent = CustomEvent$1;
}
var TributeEvents = /*#__PURE__*/function () {
function TributeEvents(tribute) {
_classCallCheck(this, TributeEvents);
this.tribute = tribute;
this.tribute.events = this;
}
_createClass(TributeEvents, [{
key: "bind",
value: function bind(element) {
element.boundKeydown = this.keydown.bind(element, this);
element.boundKeyup = this.keyup.bind(element, this);
element.boundInput = this.input.bind(element, this);
element.addEventListener("keydown", element.boundKeydown, false);
element.addEventListener("keyup", element.boundKeyup, false);
element.addEventListener("input", element.boundInput, false);
}
}, {
key: "unbind",
value: function unbind(element) {
element.removeEventListener("keydown", element.boundKeydown, false);
element.removeEventListener("keyup", element.boundKeyup, false);
element.removeEventListener("input", element.boundInput, false);
delete element.boundKeydown;
delete element.boundKeyup;
delete element.boundInput;
}
}, {
key: "keydown",
value: function keydown(instance, event) {
if (instance.shouldDeactivate(event)) {
instance.tribute.isActive = false;
instance.tribute.hideMenu();
}
var element = this;
instance.commandEvent = false;
TributeEvents.keys().forEach(function (o) {
if (o.key === event.keyCode) {
instance.commandEvent = true;
instance.callbacks()[o.value.toLowerCase()](event, element);
}
});
}
}, {
key: "input",
value: function input(instance, event) {
instance.inputEvent = true;
instance.keyup.call(this, instance, event);
}
}, {
key: "click",
value: function click(instance, event) {
var tribute = instance.tribute;
if (tribute.menu && tribute.menu.contains(event.target)) {
var li = event.target;
event.preventDefault();
event.stopPropagation();
while (li.nodeName.toLowerCase() !== "li") {
li = li.parentNode;
if (!li || li === tribute.menu) {
throw new Error("cannot find the <li> container for the click");
}
}
tribute.selectItemAtIndex(li.getAttribute("data-index"), event);
tribute.hideMenu(); // TODO: should fire with externalTrigger and target is outside of menu
} else if (tribute.current.element && !tribute.current.externalTrigger) {
tribute.current.externalTrigger = false;
setTimeout(function () {
return tribute.hideMenu();
});
}
}
}, {
key: "keyup",
value: function keyup(instance, event) {
if (instance.inputEvent) {
instance.inputEvent = false;
}
instance.updateSelection(this);
if (event.keyCode === 27) return;
if (!instance.tribute.allowSpaces && instance.tribute.hasTrailingSpace) {
instance.tribute.hasTrailingSpace = false;
instance.commandEvent = true;
instance.callbacks()["space"](event, this);
return;
}
if (!instance.tribute.isActive) {
if (instance.tribute.autocompleteMode) {
instance.callbacks().triggerChar(event, this, "");
} else {
var keyCode = instance.getKeyCode(instance, this, event);
if (isNaN(keyCode) || !keyCode) return;
var trigger = instance.tribute.triggers().find(function (trigger) {
return trigger.charCodeAt(0) === keyCode;
});
if (typeof trigger !== "undefined") {
instance.callbacks().triggerChar(event, this, trigger);
}
}
}
if (instance.tribute.current.mentionText.length < instance.tribute.current.collection.menuShowMinLength) {
return;
}
if ((instance.tribute.current.trigger || instance.tribute.autocompleteMode) && instance.commandEvent === false || instance.tribute.isActive && event.keyCode === 8) {
instance.tribute.showMenuFor(this, true);
}
}
}, {
key: "shouldDeactivate",
value: function shouldDeactivate(event) {
if (!this.tribute.isActive) return false;
if (this.tribute.current.mentionText.length === 0) {
var eventKeyPressed = false;
TributeEvents.keys().forEach(function (o) {
if (event.keyCode === o.key) eventKeyPressed = true;
});
return !eventKeyPressed;
}
return false;
}
}, {
key: "getKeyCode",
value: function getKeyCode(instance, el, event) {
var tribute = instance.tribute;
var info = tribute.range.getTriggerInfo(false, tribute.hasTrailingSpace, true, tribute.allowSpaces, tribute.autocompleteMode);
if (info) {
return info.mentionTriggerChar.charCodeAt(0);
} else {
return false;
}
}
}, {
key: "updateSelection",
value: function updateSelection(el) {
this.tribute.current.element = el;
var info = this.tribute.range.getTriggerInfo(false, this.tribute.hasTrailingSpace, true, this.tribute.allowSpaces, this.tribute.autocompleteMode);
if (info) {
this.tribute.current.selectedPath = info.mentionSelectedPath;
this.tribute.current.mentionText = info.mentionText;
this.tribute.current.selectedOffset = info.mentionSelectedOffset;
}
}
}, {
key: "callbacks",
value: function callbacks() {
var _this = this;
return {
triggerChar: function triggerChar(e, el, trigger) {
var tribute = _this.tribute;
tribute.current.trigger = trigger;
var collectionItem = tribute.collection.find(function (item) {
return item.trigger === trigger;
});
tribute.current.collection = collectionItem;
if (tribute.current.mentionText.length >= tribute.current.collection.menuShowMinLength && tribute.inputEvent) {
tribute.showMenuFor(el, true);
}
},
enter: function enter(e, el) {
// choose selection
if (_this.tribute.isActive && _this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
setTimeout(function () {
_this.tribute.selectItemAtIndex(_this.tribute.menuSelected, e);
_this.tribute.hideMenu();
}, 0);
}
},
escape: function escape(e, el) {
if (_this.tribute.isActive) {
e.preventDefault();
e.stopPropagation();
_this.tribute.isActive = false;
_this.tribute.hideMenu();
}
},
tab: function tab(e, el) {
// choose first match
_this.callbacks().enter(e, el);
},
space: function space(e, el) {
if (_this.tribute.isActive) {
if (_this.tribute.spaceSelectsMatch) {
_this.callbacks().enter(e, el);
} else if (!_this.tribute.allowSpaces) {
e.stopPropagation();
setTimeout(function () {
_this.tribute.hideMenu();
_this.tribute.isActive = false;
}, 0);
}
}
},
up: function up(e, el) {
// navigate up ul
if (_this.tribute.isActive && _this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
var count = _this.tribute.current.filteredItems.length,
selected = _this.tribute.menuSelected;
if (count > selected && selected > 0) {
_this.tribute.menuSelected--;
_this.setActiveLi();
} else if (selected === 0) {
_this.tribute.menuSelected = count - 1;
_this.setActiveLi();
_this.tribute.menu.scrollTop = _this.tribute.menu.scrollHeight;
}
}
},
down: function down(e, el) {
// navigate down ul
if (_this.tribute.isActive && _this.tribute.current.filteredItems) {
e.preventDefault();
e.stopPropagation();
var count = _this.tribute.current.filteredItems.length - 1,
selected = _this.tribute.menuSelected;
if (count > selected) {
_this.tribute.menuSelected++;
_this.setActiveLi();
} else if (count === selected) {
_this.tribute.menuSelected = 0;
_this.setActiveLi();
_this.tribute.menu.scrollTop = 0;
}
}
},
"delete": function _delete(e, el) {
if (_this.tribute.isActive && _this.tribute.current.mentionText.length < 1) {
_this.tribute.hideMenu();
} else if (_this.tribute.isActive) {
_this.tribute.showMenuFor(el);
}
}
};
}
}, {
key: "setActiveLi",
value: function setActiveLi(index) {
var lis = this.tribute.menu.querySelectorAll("li"),
length = lis.length >>> 0;
if (index) this.tribute.menuSelected = parseInt(index);
for (var i = 0; i < length; i++) {
var li = lis[i];
if (i === this.tribute.menuSelected) {
li.classList.add(this.tribute.current.collection.selectClass);
var liClientRect = li.getBoundingClientRect();
var menuClientRect = this.tribute.menu.getBoundingClientRect();
if (liClientRect.bottom > menuClientRect.bottom) {
var scrollDistance = liClientRect.bottom - menuClientRect.bottom;
this.tribute.menu.scrollTop += scrollDistance;
} else if (liClientRect.top < menuClientRect.top) {
var _scrollDistance = menuClientRect.top - liClientRect.top;
this.tribute.menu.scrollTop -= _scrollDistance;
}
} else {
li.classList.remove(this.tribute.current.collection.selectClass);
}
}
}
}, {
key: "getFullHeight",
value: function getFullHeight(elem, includeMargin) {
var height = elem.getBoundingClientRect().height;
if (includeMargin) {
var style = elem.currentStyle || window.getComputedStyle(elem);
return height + parseFloat(style.marginTop) + parseFloat(style.marginBottom);
}
return height;
}
}], [{
key: "keys",
value: function keys() {
return [{
key: 9,
value: "TAB"
}, {
key: 8,
value: "DELETE"
}, {
key: 13,
value: "ENTER"
}, {
key: 27,
value: "ESCAPE"
}, {
key: 32,
value: "SPACE"
}, {
key: 38,
value: "UP"
}, {
key: 40,
value: "DOWN"
}];
}
}]);
return TributeEvents;
}();
var TributeMenuEvents = /*#__PURE__*/function () {
function TributeMenuEvents(tribute) {
_classCallCheck(this, TributeMenuEvents);
this.tribute = tribute;
this.tribute.menuEvents = this;
this.menu = this.tribute.menu;
}
_createClass(TributeMenuEvents, [{
key: "bind",
value: function bind(menu) {
var _this = this;
this.menuClickEvent = this.tribute.events.click.bind(null, this);
this.menuContainerScrollEvent = this.debounce(function () {
if (_this.tribute.isActive) {
_this.tribute.hideMenu();
}
}, 10, false);
this.windowResizeEvent = this.debounce(function () {
if (_this.tribute.isActive) {
_this.tribute.hideMenu();
}
}, 10, false); // fixes IE11 issues with mousedown
this.tribute.range.getDocument().addEventListener("MSPointerDown", this.menuClickEvent, false);
this.tribute.range.getDocument().addEventListener("mousedown", this.menuClickEvent, false);
window.addEventListener("resize", this.windowResizeEvent);
if (this.menuContainer) {
this.menuContainer.addEventListener("scroll", this.menuContainerScrollEvent, false);
} else {
window.addEventListener("scroll", this.menuContainerScrollEvent);
}
}
}, {
key: "unbind",
value: function unbind(menu) {
this.tribute.range.getDocument().removeEventListener("mousedown", this.menuClickEvent, false);
this.tribute.range.getDocument().removeEventListener("MSPointerDown", this.menuClickEvent, false);
window.removeEventListener("resize", this.windowResizeEvent);
if (this.menuContainer) {
this.menuContainer.removeEventListener("scroll", this.menuContainerScrollEvent, false);
} else {
window.removeEventListener("scroll", this.menuContainerScrollEvent);
}
}
}, {
key: "debounce",
value: function debounce(func, wait, immediate) {
var _arguments = arguments,
_this2 = this;
var timeout;
return function () {
var context = _this2,
args = _arguments;
var later = function later() {
timeout = null;
if (!immediate) func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
}
}]);
return TributeMenuEvents;
}();
var TributeRange = /*#__PURE__*/function () {
function TributeRange(tribute) {
_classCallCheck(this, TributeRange);
this.tribute = tribute;
this.tribute.range = this;
}
_createClass(TributeRange, [{
key: "getDocument",
value: function getDocument() {
var iframe;
if (this.tribute.current.collection) {
iframe = this.tribute.current.collection.iframe;
}
if (!iframe) {
return document;
}
return iframe.contentWindow.document;
}
}, {
key: "positionMenuAtCaret",
value: function positionMenuAtCaret(scrollTo) {
var context = this.tribute.current,
coordinates;
var info = this.getTriggerInfo(false, this.tribute.hasTrailingSpace, true, this.tribute.allowSpaces, this.tribute.autocompleteMode);
if (typeof info !== 'undefined') {
if (!this.tribute.positionMenu) {
this.tribute.menu.style.cssText = "display: block;";
return;
}
if (!this.isContentEditable(context.element)) {
coordinates = this.getTextAreaOrInputUnderlinePosition(this.tribute.current.element, info.mentionPosition);
} else {
coordinates = this.getContentEditableCaretPosition(info.mentionPosition);
}
this.tribute.menu.style.cssText = "top: ".concat(coordinates.top, "px;\n left: ").concat(coordinates.left, "px;\n right: ").concat(coordinates.right, "px;\n bottom: ").concat(coordinates.bottom, "px;\n max-height: ").concat(coordinates.maxHeight || 500, "px;\n max-width: ").concat(coordinates.maxWidth || 300, "px;\n position: ").concat(coordinates.position || 'absolute', ";\n display: block;");
if (coordinates.left === 'auto') {
this.tribute.menu.style.left = 'auto';
}
if (coordinates.top === 'auto') {
this.tribute.menu.style.top = 'auto';
}
if (scrollTo) this.scrollIntoView();
} else {
this.tribute.menu.style.cssText = 'display: none';
}
}
}, {
key: "selectElement",
value: function selectElement(targetElement, path, offset) {
var range;
var elem = targetElement;
if (path) {
for (var i = 0; i < path.length; i++) {
elem = elem.childNodes[path[i]];
if (elem === undefined) {
return;
}
while (elem.length < offset) {
offset -= elem.length;
elem = elem.nextSibling;
}
if (elem.childNodes.length === 0 && !elem.length) {
elem = elem.previousSibling;
}
}
}
var sel = this.getWindowSelection();
range = this.getDocument().createRange();
range.setStart(elem, offset);
range.setEnd(elem, offset);
range.collapse(true);
try {
sel.removeAllRanges();
} catch (error) {}
sel.addRange(range);
targetElement.focus();
}
}, {
key: "replaceTriggerText",
value: function replaceTriggerText(text, requireLeadingSpace, hasTrailingSpace, originalEvent, item) {
var info = this.getTriggerInfo(true, hasTrailingSpace, requireLeadingSpace, this.tribute.allowSpaces, this.tribute.autocompleteMode);
if (info !== undefined) {
var context = this.tribute.current;
var replaceEvent = new CustomEvent('tribute-replaced', {
detail: {
item: item,
instance: context,
context: info,
event: originalEvent
}
});
if (!this.isContentEditable(context.element)) {
var myField = this.tribute.current.element;
var textSuffix = typeof this.tribute.replaceTextSuffix == 'string' ? this.tribute.replaceTextSuffix : ' ';
text += textSuffix;
var startPos = info.mentionPosition;
var endPos = info.mentionPosition + info.mentionText.length + textSuffix.length;
if (!this.tribute.autocompleteMode) {
endPos += info.mentionTriggerChar.length - 1;
}
myField.value = myField.value.substring(0, startPos) + text + myField.value.substring(endPos, myField.value.length);
myField.selectionStart = startPos + text.length;
myField.selectionEnd = startPos + text.length;
} else {
// add a space to the end of the pasted text
var _textSuffix = typeof this.tribute.replaceTextSuffix == 'string' ? this.tribute.replaceTextSuffix : '\xA0';
text += _textSuffix;
var _endPos = info.mentionPosition + info.mentionText.length;
if (!this.tribute.autocompleteMode) {
_endPos += info.mentionTriggerChar.length;
}
this.pasteHtml(text, info.mentionPosition, _endPos);
}
context.element.dispatchEvent(new CustomEvent('input', {
bubbles: true
}));
context.element.dispatchEvent(replaceEvent);
}
}
}, {
key: "pasteHtml",
value: function pasteHtml(html, startPos, endPos) {
var range, sel;
sel = this.getWindowSelection();
range = this.getDocument().createRange();
range.setStart(sel.anchorNode, startPos);
range.setEnd(sel.anchorNode, endPos);
range.deleteContents();
var el = this.getDocument().createElement('div');
el.innerHTML = html;
var frag = this.getDocument().createDocumentFragment(),
node,
lastNode;
while (node = el.firstChild) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag); // Preserve the selection
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
}, {
key: "getWindowSelection",
value: function getWindowSelection() {
if (this.tribute.collection.iframe) {
return this.tribute.collection.iframe.contentWindow.getSelection();
}
return window.getSelection();
}
}, {
key: "getNodePositionInParent",
value: function getNodePositionInParent(element) {
if (element.parentNode === null) {
return 0;
}
for (var i = 0; i < element.parentNode.childNodes.length; i++) {
var node = element.parentNode.childNodes[i];
if (node === element) {
return i;
}
}
}
}, {
key: "getContentEditableSelectedPath",
value: function getContentEditableSelectedPath(ctx) {
var sel = this.getWindowSelection();
var selected = sel.anchorNode;
var path = [];
var offset;
if (selected != null) {
var i;
var ce = selected.contentEditable;
while (selected !== null && ce !== 'true') {
i = this.getNodePositionInParent(selected);
path.push(i);
selected = selected.parentNode;
if (selected !== null) {
ce = selected.contentEditable;
}
}
path.reverse(); // getRangeAt may not exist, need alternative
offset = sel.getRangeAt(0).startOffset;
return {
selected: selected,
path: path,
offset: offset
};
}
}
}, {
key: "getTextPrecedingCurrentSelection",
value: function getTextPrecedingCurrentSelection() {
var context = this.tribute.current,
text = '';
if (!this.isContentEditable(context.element)) {
var textComponent = this.tribute.current.element;
if (textComponent) {
var startPos = textComponent.selectionStart;
if (textComponent.value && startPos >= 0) {
text = textComponent.value.substring(0, startPos);
}
}
} else {
var selectedElem = this.getWindowSelection().anchorNode;
if (selectedElem != null) {
var workingNodeContent = selectedElem.textContent;
var selectStartOffset = this.getWindowSelection().getRangeAt(0).startOffset;
if (workingNodeContent && selectStartOffset >= 0) {
text = workingNodeContent.substring(0, selectStartOffset);
}
}
}
return text;
}
}, {
key: "getLastWordInText",
value: function getLastWordInText(text) {
text = text.replace(/\u00A0/g, ' '); // path_to_url
var wordsArray;
if (this.tribute.autocompleteSeparator) {
wordsArray = text.split(this.tribute.autocompleteSeparator);
} else {
wordsArray = text.split(/\s+/);
}
var worldsCount = wordsArray.length - 1;
return wordsArray[worldsCount].trim();
}
}, {
key: "getTriggerInfo",
value: function getTriggerInfo(menuAlreadyActive, hasTrailingSpace, requireLeadingSpace, allowSpaces, isAutocomplete) {
var _this = this;
var ctx = this.tribute.current;
var selected, path, offset;
if (!this.isContentEditable(ctx.element)) {
selected = this.tribute.current.element;
} else {
var selectionInfo = this.getContentEditableSelectedPath(ctx);
if (selectionInfo) {
selected = selectionInfo.selected;
path = selectionInfo.path;
offset = selectionInfo.offset;
}
}
var effectiveRange = this.getTextPrecedingCurrentSelection();
var lastWordOfEffectiveRange = this.getLastWordInText(effectiveRange);
if (isAutocomplete) {
return {
mentionPosition: effectiveRange.length - lastWordOfEffectiveRange.length,
mentionText: lastWordOfEffectiveRange,
mentionSelectedElement: selected,
mentionSelectedPath: path,
mentionSelectedOffset: offset
};
}
if (effectiveRange !== undefined && effectiveRange !== null) {
var mostRecentTriggerCharPos = -1;
var triggerChar;
this.tribute.collection.forEach(function (config) {
var c = config.trigger;
var idx = config.requireLeadingSpace ? _this.lastIndexWithLeadingSpace(effectiveRange, c) : effectiveRange.lastIndexOf(c);
if (idx > mostRecentTriggerCharPos) {
mostRecentTriggerCharPos = idx;
triggerChar = c;
requireLeadingSpace = config.requireLeadingSpace;
}
});
if (mostRecentTriggerCharPos >= 0 && (mostRecentTriggerCharPos === 0 || !requireLeadingSpace || /[\xA0\s]/g.test(effectiveRange.substring(mostRecentTriggerCharPos - 1, mostRecentTriggerCharPos)))) {
var currentTriggerSnippet = effectiveRange.substring(mostRecentTriggerCharPos + triggerChar.length, effectiveRange.length);
triggerChar = effectiveRange.substring(mostRecentTriggerCharPos, mostRecentTriggerCharPos + triggerChar.length);
var firstSnippetChar = currentTriggerSnippet.substring(0, 1);
var leadingSpace = currentTriggerSnippet.length > 0 && (firstSnippetChar === ' ' || firstSnippetChar === '\xA0');
if (hasTrailingSpace) {
currentTriggerSnippet = currentTriggerSnippet.trim();
}
var regex = allowSpaces ? /[^\S ]/g : /[\xA0\s]/g;
this.tribute.hasTrailingSpace = regex.test(currentTriggerSnippet);
if (!leadingSpace && (menuAlreadyActive || !regex.test(currentTriggerSnippet))) {
return {
mentionPosition: mostRecentTriggerCharPos,
mentionText: currentTriggerSnippet,
mentionSelectedElement: selected,
mentionSelectedPath: path,
mentionSelectedOffset: offset,
mentionTriggerChar: triggerChar
};
}
}
}
}
}, {
key: "lastIndexWithLeadingSpace",
value: function lastIndexWithLeadingSpace(str, trigger) {
var reversedStr = str.split('').reverse().join('');
var index = -1;
for (var cidx = 0, len = str.length; cidx < len; cidx++) {
var firstChar = cidx === str.length - 1;
var leadingSpace = /\s/.test(reversedStr[cidx + 1]);
var match = true;
for (var triggerIdx = trigger.length - 1; triggerIdx >= 0; triggerIdx--) {
if (trigger[triggerIdx] !== reversedStr[cidx - triggerIdx]) {
match = false;
break;
}
}
if (match && (firstChar || leadingSpace)) {
index = str.length - 1 - cidx;
break;
}
}
return index;
}
}, {
key: "isContentEditable",
value: function isContentEditable(element) {
return element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA';
}
}, {
key: "isMenuOffScreen",
value: function isMenuOffScreen(coordinates, menuDimensions) {
var windowWidth = window.innerWidth;
var windowHeight = window.innerHeight;
var doc = document.documentElement;
var windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0);
var windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0);
var menuTop = typeof coordinates.top === 'number' ? coordinates.top : windowTop + windowHeight - coordinates.bottom - menuDimensions.height;
var menuRight = typeof coordinates.right === 'number' ? coordinates.right : coordinates.left + menuDimensions.width;
var menuBottom = typeof coordinates.bottom === 'number' ? coordinates.bottom : coordinates.top + menuDimensions.height;
var menuLeft = typeof coordinates.left === 'number' ? coordinates.left : windowLeft + windowWidth - coordinates.right - menuDimensions.width;
return {
top: menuTop < Math.floor(windowTop),
right: menuRight > Math.ceil(windowLeft + windowWidth),
bottom: menuBottom > Math.ceil(windowTop + windowHeight),
left: menuLeft < Math.floor(windowLeft)
};
}
}, {
key: "getMenuDimensions",
value: function getMenuDimensions() {
// Width of the menu depends of its contents and position
// We must check what its width would be without any obstruction
// This way, we can achieve good positioning for flipping the menu
var dimensions = {
width: null,
height: null
};
this.tribute.menu.style.cssText = "top: 0px;\n left: 0px;\n position: fixed;\n display: block;\n visibility; hidden;\n max-height:500px;";
dimensions.width = this.tribute.menu.offsetWidth;
dimensions.height = this.tribute.menu.offsetHeight;
this.tribute.menu.style.cssText = "display: none;";
return dimensions;
}
}, {
key: "getTextAreaOrInputUnderlinePosition",
value: function getTextAreaOrInputUnderlinePosition(element, position, flipped) {
var properties = ['direction', 'boxSizing', 'width', 'height', 'overflowX', 'overflowY', 'borderTopWidth', 'borderRightWidth', 'borderBottomWidth', 'borderLeftWidth', 'borderStyle', 'paddingTop', 'paddingRight', 'paddingBottom', 'paddingLeft', 'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch', 'fontSize', 'fontSizeAdjust', 'lineHeight', 'fontFamily', 'textAlign', 'textTransform', 'textIndent', 'textDecoration', 'letterSpacing', 'wordSpacing'];
var div = this.getDocument().createElement('div');
div.id = 'input-textarea-caret-position-mirror-div';
this.getDocument().body.appendChild(div);
var style = div.style;
var computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle;
style.whiteSpace = 'pre-wrap';
if (element.nodeName !== 'INPUT') {
style.wordWrap = 'break-word';
}
style.position = 'absolute';
style.visibility = 'hidden'; // transfer the element's properties to the div
properties.forEach(function (prop) {
style[prop] = computed[prop];
}); //NOT SURE WHY THIS IS HERE AND IT DOESNT SEEM HELPFUL
// if (isFirefox) {
// style.width = `${(parseInt(computed.width) - 2)}px`
// if (element.scrollHeight > parseInt(computed.height))
// style.overflowY = 'scroll'
// } else {
// style.overflow = 'hidden'
// }
var span0 = document.createElement('span');
span0.textContent = element.value.substring(0, position);
div.appendChild(span0);
if (element.nodeName === 'INPUT') {
div.textContent = div.textContent.replace(/\s/g, '');
} //Create a span in the div that represents where the cursor
//should be
var span = this.getDocument().createElement('span'); //we give it no content as this represents the cursor
span.textContent = '​';
div.appendChild(span);
var span2 = this.getDocument().createElement('span');
span2.textContent = element.value.substring(position);
div.appendChild(span2);
var rect = element.getBoundingClientRect(); //position the div exactly over the element
//so we can get the bounding client rect for the span and
//it should represent exactly where the cursor is
div.style.position = 'fixed';
div.style.left = rect.left + 'px';
div.style.top = rect.top + 'px';
div.style.width = rect.width + 'px';
div.style.height = rect.height + 'px';
div.scrollTop = element.scrollTop;
var spanRect = span.getBoundingClientRect();
this.getDocument().body.removeChild(div);
return this.getFixedCoordinatesRelativeToRect(spanRect);
}
}, {
key: "getContentEditableCaretPosition",
value: function getContentEditableCaretPosition(selectedNodePosition) {
var range;
var sel = this.getWindowSelection();
range = this.getDocument().createRange();
range.setStart(sel.anchorNode, selectedNodePosition);
range.setEnd(sel.anchorNode, selectedNodePosition);
range.collapse(false);
var rect = range.getBoundingClientRect();
return this.getFixedCoordinatesRelativeToRect(rect);
}
}, {
key: "getFixedCoordinatesRelativeToRect",
value: function getFixedCoordinatesRelativeToRect(rect) {
var coordinates = {
position: 'fixed',
left: rect.left,
top: rect.top + rect.height
};
var menuDimensions = this.getMenuDimensions();
var availableSpaceOnTop = rect.top;
var availableSpaceOnBottom = window.innerHeight - (rect.top + rect.height); //check to see where's the right place to put the menu vertically
if (availableSpaceOnBottom < menuDimensions.height) {
if (availableSpaceOnTop >= menuDimensions.height || availableSpaceOnTop > availableSpaceOnBottom) {
coordinates.top = 'auto';
coordinates.bottom = window.innerHeight - rect.top;
if (availableSpaceOnBottom < menuDimensions.height) {
coordinates.maxHeight = availableSpaceOnTop;
}
} else {
if (availableSpaceOnTop < menuDimensions.height) {
coordinates.maxHeight = availableSpaceOnBottom;
}
}
}
var availableSpaceOnLeft = rect.left;
var availableSpaceOnRight = window.innerWidth - rect.left; //check to see where's the right place to put the menu horizontally
if (availableSpaceOnRight < menuDimensions.width) {
if (availableSpaceOnLeft >= menuDimensions.width || availableSpaceOnLeft > availableSpaceOnRight) {
coordinates.left = 'auto';
coordinates.right = window.innerWidth - rect.left;
if (availableSpaceOnRight < menuDimensions.width) {
coordinates.maxWidth = availableSpaceOnLeft;
}
} else {
if (availableSpaceOnLeft < menuDimensions.width) {
coordinates.maxWidth = availableSpaceOnRight;
}
}
}
return coordinates;
}
}, {
key: "scrollIntoView",
value: function scrollIntoView(elem) {
var reasonableBuffer = 20,
clientRect;
var maxScrollDisplacement = 100;
var e = this.menu;
if (typeof e === 'undefined') return;
while (clientRect === undefined || clientRect.height === 0) {
clientRect = e.getBoundingClientRect();
if (clientRect.height === 0) {
e = e.childNodes[0];
if (e === undefined || !e.getBoundingClientRect) {
return;
}
}
}
var elemTop = clientRect.top;
var elemBottom = elemTop + clientRect.height;
if (elemTop < 0) {
window.scrollTo(0, window.pageYOffset + clientRect.top - reasonableBuffer);
} else if (elemBottom > window.innerHeight) {
var maxY = window.pageYOffset + clientRect.top - reasonableBuffer;
if (maxY - window.pageYOffset > maxScrollDisplacement) {
maxY = window.pageYOffset + maxScrollDisplacement;
}
var targetY = window.pageYOffset - (window.innerHeight - elemBottom);
if (targetY > maxY) {
targetY = maxY;
}
window.scrollTo(0, targetY);
}
}
}, {
key: "menuContainerIsBody",
get: function get() {
return this.tribute.menuContainer === document.body || !this.tribute.menuContainer;
}
}]);
return TributeRange;
}();
// Thanks to path_to_url
var TributeSearch = /*#__PURE__*/function () {
function TributeSearch(tribute) {
_classCallCheck(this, TributeSearch);
this.tribute = tribute;
this.tribute.search = this;
}
_createClass(TributeSearch, [{
key: "simpleFilter",
value: function simpleFilter(pattern, array) {
var _this = this;
return array.filter(function (string) {
return _this.test(pattern, string);
});
}
}, {
key: "test",
value: function test(pattern, string) {
return this.match(pattern, string) !== null;
}
}, {
key: "match",
value: function match(pattern, string, opts) {
opts = opts || {};
var len = string.length,
pre = opts.pre || '',
post = opts.post || '',
compareString = opts.caseSensitive && string || string.toLowerCase();
if (opts.skip) {
return {
rendered: string,
score: 0
};
}
pattern = opts.caseSensitive && pattern || pattern.toLowerCase();
var patternCache = this.traverse(compareString, pattern, 0, 0, []);
if (!patternCache) {
return null;
}
return {
rendered: this.render(string, patternCache.cache, pre, post),
score: patternCache.score
};
}
}, {
key: "traverse",
value: function traverse(string, pattern, stringIndex, patternIndex, patternCache) {
if (this.tribute.autocompleteSeparator) {
// if the pattern search at end
pattern = pattern.split(this.tribute.autocompleteSeparator).splice(-1)[0];
}
if (pattern.length === patternIndex) {
// calculate score and copy the cache containing the indices where it's found
return {
score: this.calculateScore(patternCache),
cache: patternCache.slice()
};
} // if string at end or remaining pattern > remaining string
if (string.length === stringIndex || pattern.length - patternIndex > string.length - stringIndex) {
return undefined;
}
var c = pattern[patternIndex];
var index = string.indexOf(c, stringIndex);
var best, temp;
while (index > -1) {
patternCache.push(index);
temp = this.traverse(string, pattern, index + 1, patternIndex + 1, patternCache);
patternCache.pop(); // if downstream traversal failed, return best answer so far
if (!temp) {
return best;
}
if (!best || best.score < temp.score) {
best = temp;
}
index = string.indexOf(c, index + 1);
}
return best;
}
}, {
key: "calculateScore",
value: function calculateScore(patternCache) {
var score = 0;
var temp = 1;
patternCache.forEach(function (index, i) {
if (i > 0) {
if (patternCache[i - 1] + 1 === index) {
temp += temp + 1;
} else {
temp = 1;
}
}
score += temp;
});
return score;
}
}, {
key: "render",
value: function render(string, indices, pre, post) {
var rendered = string.substring(0, indices[0]);
indices.forEach(function (index, i) {
rendered += pre + string[index] + post + string.substring(index + 1, indices[i + 1] ? indices[i + 1] : string.length);
});
return rendered;
}
}, {
key: "filter",
value: function filter(pattern, arr, opts) {
var _this2 = this;
opts = opts || {};
return arr.reduce(function (prev, element, idx, arr) {
var str = element;
if (opts.extract) {
str = opts.extract(element);
if (!str) {
// take care of undefineds / nulls / etc.
str = '';
}
}
var rendered = _this2.match(pattern, str, opts);
if (rendered != null) {
prev[prev.length] = {
string: rendered.rendered,
score: rendered.score,
index: idx,
original: element
};
}
return prev;
}, []).sort(function (a, b) {
var compare = b.score - a.score;
if (compare) return compare;
return a.index - b.index;
});
}
}]);
return TributeSearch;
}();
var Tribute = /*#__PURE__*/function () {
function Tribute(_ref) {
var _this = this;
var _ref$values = _ref.values,
values = _ref$values === void 0 ? null : _ref$values,
_ref$loadingItemTempl = _ref.loadingItemTemplate,
loadingItemTemplate = _ref$loadingItemTempl === void 0 ? null : _ref$loadingItemTempl,
_ref$iframe = _ref.iframe,
iframe = _ref$iframe === void 0 ? null : _ref$iframe,
_ref$selectClass = _ref.selectClass,
selectClass = _ref$selectClass === void 0 ? "highlight" : _ref$selectClass,
_ref$containerClass = _ref.containerClass,
containerClass = _ref$containerClass === void 0 ? "tribute-container" : _ref$containerClass,
_ref$itemClass = _ref.itemClass,
itemClass = _ref$itemClass === void 0 ? "" : _ref$itemClass,
_ref$trigger = _ref.trigger,
trigger = _ref$trigger === void 0 ? "@" : _ref$trigger,
_ref$autocompleteMode = _ref.autocompleteMode,
autocompleteMode = _ref$autocompleteMode === void 0 ? false : _ref$autocompleteMode,
_ref$autocompleteSepa = _ref.autocompleteSeparator,
autocompleteSeparator = _ref$autocompleteSepa === void 0 ? null : _ref$autocompleteSepa,
_ref$selectTemplate = _ref.selectTemplate,
selectTemplate = _ref$selectTemplate === void 0 ? null : _ref$selectTemplate,
_ref$menuItemTemplate = _ref.menuItemTemplate,
menuItemTemplate = _ref$menuItemTemplate === void 0 ? null : _ref$menuItemTemplate,
_ref$lookup = _ref.lookup,
lookup = _ref$lookup === void 0 ? "key" : _ref$lookup,
_ref$fillAttr = _ref.fillAttr,
fillAttr = _ref$fillAttr === void 0 ? "value" : _ref$fillAttr,
_ref$collection = _ref.collection,
collection = _ref$collection === void 0 ? null : _ref$collection,
_ref$menuContainer = _ref.menuContainer,
menuContainer = _ref$menuContainer === void 0 ? null : _ref$menuContainer,
_ref$noMatchTemplate = _ref.noMatchTemplate,
noMatchTemplate = _ref$noMatchTemplate === void 0 ? null : _ref$noMatchTemplate,
_ref$requireLeadingSp = _ref.requireLeadingSpace,
requireLeadingSpace = _ref$requireLeadingSp === void 0 ? true : _ref$requireLeadingSp,
_ref$allowSpaces = _ref.allowSpaces,
allowSpaces = _ref$allowSpaces === void 0 ? false : _ref$allowSpaces,
_ref$replaceTextSuffi = _ref.replaceTextSuffix,
replaceTextSuffix = _ref$replaceTextSuffi === void 0 ? null : _ref$replaceTextSuffi,
_ref$positionMenu = _ref.positionMenu,
positionMenu = _ref$positionMenu === void 0 ? true : _ref$positionMenu,
_ref$spaceSelectsMatc = _ref.spaceSelectsMatch,
spaceSelectsMatch = _ref$spaceSelectsMatc === void 0 ? false : _ref$spaceSelectsMatc,
_ref$searchOpts = _ref.searchOpts,
searchOpts = _ref$searchOpts === void 0 ? {} : _ref$searchOpts,
_ref$menuItemLimit = _ref.menuItemLimit,
menuItemLimit = _ref$menuItemLimit === void 0 ? null : _ref$menuItemLimit,
_ref$menuShowMinLengt = _ref.menuShowMinLength,
menuShowMinLength = _ref$menuShowMinLengt === void 0 ? 0 : _ref$menuShowMinLengt;
_classCallCheck(this, Tribute);
this.autocompleteMode = autocompleteMode;
this.autocompleteSeparator = autocompleteSeparator;
this.menuSelected = 0;
this.current = {};
this.inputEvent = false;
this.isActive = false;
this.menuContainer = menuContainer;
this.allowSpaces = allowSpaces;
this.replaceTextSuffix = replaceTextSuffix;
this.positionMenu = positionMenu;
this.hasTrailingSpace = false;
this.spaceSelectsMatch = spaceSelectsMatch;
if (this.autocompleteMode) {
trigger = "";
allowSpaces = false;
}
if (values) {
this.collection = [{
// symbol that starts the lookup
trigger: trigger,
// is it wrapped in an iframe
iframe: iframe,
// class applied to selected item
selectClass: selectClass,
// class applied to the Container
containerClass: containerClass,
// class applied to each item
itemClass: itemClass,
// function called on select that retuns the content to insert
selectTemplate: (selectTemplate || Tribute.defaultSelectTemplate).bind(this),
// function called that returns content for an item
menuItemTemplate: (menuItemTemplate || Tribute.defaultMenuItemTemplate).bind(this),
// function called when menu is empty, disables hiding of menu.
noMatchTemplate: function (t) {
if (typeof t === "string") {
if (t.trim() === "") return null;
return t;
}
if (typeof t === "function") {
return t.bind(_this);
}
return noMatchTemplate || function () {
return "<li>No Match Found!</li>";
}.bind(_this);
}(noMatchTemplate),
// column to search against in the object
lookup: lookup,
// column that contains the content to insert by default
fillAttr: fillAttr,
// array of objects or a function returning an array of objects
values: values,
// useful for when values is an async function
loadingItemTemplate: loadingItemTemplate,
requireLeadingSpace: requireLeadingSpace,
searchOpts: searchOpts,
menuItemLimit: menuItemLimit,
menuShowMinLength: menuShowMinLength
}];
} else if (collection) {
if (this.autocompleteMode) console.warn("Tribute in autocomplete mode does not work for collections");
this.collection = collection.map(function (item) {
return {
trigger: item.trigger || trigger,
iframe: item.iframe || iframe,
selectClass: item.selectClass || selectClass,
containerClass: item.containerClass || containerClass,
itemClass: item.itemClass || itemClass,
selectTemplate: (item.selectTemplate || Tribute.defaultSelectTemplate).bind(_this),
menuItemTemplate: (item.menuItemTemplate || Tribute.defaultMenuItemTemplate).bind(_this),
// function called when menu is empty, disables hiding of menu.
noMatchTemplate: function (t) {
if (typeof t === "string") {
if (t.trim() === "") return null;
return t;
}
if (typeof t === "function") {
return t.bind(_this);
}
return noMatchTemplate || function () {
return "<li>No Match Found!</li>";
}.bind(_this);
}(noMatchTemplate),
lookup: item.lookup || lookup,
fillAttr: item.fillAttr || fillAttr,
values: item.values,
loadingItemTemplate: item.loadingItemTemplate,
requireLeadingSpace: item.requireLeadingSpace,
searchOpts: item.searchOpts || searchOpts,
menuItemLimit: item.menuItemLimit || menuItemLimit,
menuShowMinLength: item.menuShowMinLength || menuShowMinLength
};
});
} else {
throw new Error("[Tribute] No collection specified.");
}
new TributeRange(this);
new TributeEvents(this);
new TributeMenuEvents(this);
new TributeSearch(this);
}
_createClass(Tribute, [{
key: "triggers",
value: function triggers() {
return this.collection.map(function (config) {
return config.trigger;
});
}
}, {
key: "attach",
value: function attach(el) {
if (!el) {
throw new Error("[Tribute] Must pass in a DOM node or NodeList.");
} // Check if it is a jQuery collection
if (typeof jQuery !== "undefined" && el instanceof jQuery) {
el = el.get();
} // Is el an Array/Array-like object?
if (el.constructor === NodeList || el.constructor === HTMLCollection || el.constructor === Array) {
var length = el.length;
for (var i = 0; i < length; ++i) {
this._attach(el[i]);
}
} else {
this._attach(el);
}
}
}, {
key: "_attach",
value: function _attach(el) {
if (el.hasAttribute("data-tribute")) {
console.warn("Tribute was already bound to " + el.nodeName);
}
this.ensureEditable(el);
this.events.bind(el);
el.setAttribute("data-tribute", true);
}
}, {
key: "ensureEditable",
value: function ensureEditable(element) {
if (Tribute.inputTypes().indexOf(element.nodeName) === -1) {
if (element.contentEditable) {
element.contentEditable = true;
} else {
throw new Error("[Tribute] Cannot bind to " + element.nodeName);
}
}
}
}, {
key: "createMenu",
value: function createMenu(containerClass) {
var wrapper = this.range.getDocument().createElement("div"),
ul = this.range.getDocument().createElement("ul");
wrapper.className = containerClass;
wrapper.appendChild(ul);
if (this.menuContainer) {
return this.menuContainer.appendChild(wrapper);
}
return this.range.getDocument().body.appendChild(wrapper);
}
}, {
key: "showMenuFor",
value: function showMenuFor(element, scrollTo) {
var _this2 = this;
// Only proceed if menu isn't already shown for the current element & mentionText
if (this.isActive && this.current.element === element && this.current.mentionText === this.currentMentionTextSnapshot) {
return;
}
this.currentMentionTextSnapshot = this.current.mentionText; // create the menu if it doesn't exist.
if (!this.menu) {
this.menu = this.createMenu(this.current.collection.containerClass);
element.tributeMenu = this.menu;
this.menuEvents.bind(this.menu);
}
this.isActive = true;
this.menuSelected = 0;
if (!this.current.mentionText) {
this.current.mentionText = "";
}
var processValues = function processValues(values) {
// Tribute may not be active any more by the time the value callback returns
if (!_this2.isActive) {
return;
}
var items = _this2.search.filter(_this2.current.mentionText, values, {
pre: _this2.current.collection.searchOpts.pre || "<span>",
post: _this2.current.collection.searchOpts.post || "</span>",
skip: _this2.current.collection.searchOpts.skip,
extract: function extract(el) {
if (typeof _this2.current.collection.lookup === "string") {
return el[_this2.current.collection.lookup];
} else if (typeof _this2.current.collection.lookup === "function") {
return _this2.current.collection.lookup(el, _this2.current.mentionText);
} else {
throw new Error("Invalid lookup attribute, lookup must be string or function.");
}
}
});
if (_this2.current.collection.menuItemLimit) {
items = items.slice(0, _this2.current.collection.menuItemLimit);
}
_this2.current.filteredItems = items;
var ul = _this2.menu.querySelector("ul");
if (!items.length) {
var noMatchEvent = new CustomEvent("tribute-no-match", {
detail: _this2.menu
});
_this2.current.element.dispatchEvent(noMatchEvent);
if (typeof _this2.current.collection.noMatchTemplate === "function" && !_this2.current.collection.noMatchTemplate() || !_this2.current.collection.noMatchTemplate) {
_this2.hideMenu();
} else {
typeof _this2.current.collection.noMatchTemplate === "function" ? ul.innerHTML = _this2.current.collection.noMatchTemplate() : ul.innerHTML = _this2.current.collection.noMatchTemplate;
_this2.range.positionMenuAtCaret(scrollTo);
}
return;
}
ul.innerHTML = "";
var fragment = _this2.range.getDocument().createDocumentFragment();
items.forEach(function (item, index) {
var li = _this2.range.getDocument().createElement("li");
li.setAttribute("data-index", index);
li.className = _this2.current.collection.itemClass;
li.addEventListener("mousemove", function (e) {
var _this2$_findLiTarget = _this2._findLiTarget(e.target),
_this2$_findLiTarget2 = _slicedToArray(_this2$_findLiTarget, 2),
li = _this2$_findLiTarget2[0],
index = _this2$_findLiTarget2[1];
if (e.movementY !== 0) {
_this2.events.setActiveLi(index);
}
});
if (_this2.menuSelected === index) {
li.classList.add(_this2.current.collection.selectClass);
}
li.innerHTML = _this2.current.collection.menuItemTemplate(item);
fragment.appendChild(li);
});
ul.appendChild(fragment);
_this2.range.positionMenuAtCaret(scrollTo);
};
if (typeof this.current.collection.values === "function") {
if (this.current.collection.loadingItemTemplate) {
this.menu.querySelector("ul").innerHTML = this.current.collection.loadingItemTemplate;
this.range.positionMenuAtCaret(scrollTo);
}
this.current.collection.values(this.current.mentionText, processValues);
} else {
processValues(this.current.collection.values);
}
}
}, {
key: "_findLiTarget",
value: function _findLiTarget(el) {
if (!el) return [];
var index = el.getAttribute("data-index");
return !index ? this._findLiTarget(el.parentNode) : [el, index];
}
}, {
key: "showMenuForCollection",
value: function showMenuForCollection(element, collectionIndex) {
if (element !== document.activeElement) {
this.placeCaretAtEnd(element);
}
this.current.collection = this.collection[collectionIndex || 0];
this.current.externalTrigger = true;
this.current.element = element;
if (element.isContentEditable) this.insertTextAtCursor(this.current.collection.trigger);else this.insertAtCaret(element, this.current.collection.trigger);
this.showMenuFor(element);
} // TODO: make sure this works for inputs/textareas
}, {
key: "placeCaretAtEnd",
value: function placeCaretAtEnd(el) {
el.focus();
if (typeof window.getSelection != "undefined" && typeof document.createRange != "undefined") {
var range = document.createRange();
range.selectNodeContents(el);
range.collapse(false);
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
} else if (typeof document.body.createTextRange != "undefined") {
var textRange = document.body.createTextRange();
textRange.moveToElementText(el);
textRange.collapse(false);
textRange.select();
}
} // for contenteditable
}, {
key: "insertTextAtCursor",
value: function insertTextAtCursor(text) {
var sel, range;
sel = window.getSelection();
range = sel.getRangeAt(0);
range.deleteContents();
var textNode = document.createTextNode(text);
range.insertNode(textNode);
range.selectNodeContents(textNode);
range.collapse(false);
sel.removeAllRanges();
sel.addRange(range);
} // for regular inputs
}, {
key: "insertAtCaret",
value: function insertAtCaret(textarea, text) {
var scrollPos = textarea.scrollTop;
var caretPos = textarea.selectionStart;
var front = textarea.value.substring(0, caretPos);
var back = textarea.value.substring(textarea.selectionEnd, textarea.value.length);
textarea.value = front + text + back;
caretPos = caretPos + text.length;
textarea.selectionStart = caretPos;
textarea.selectionEnd = caretPos;
textarea.focus();
textarea.scrollTop = scrollPos;
}
}, {
key: "hideMenu",
value: function hideMenu() {
if (this.menu) {
this.menu.style.cssText = "display: none;";
this.isActive = false;
this.menuSelected = 0;
this.current = {};
}
}
}, {
key: "selectItemAtIndex",
value: function selectItemAtIndex(index, originalEvent) {
index = parseInt(index);
if (typeof index !== "number" || isNaN(index)) return;
var item = this.current.filteredItems[index];
var content = this.current.collection.selectTemplate(item);
if (content !== null) this.replaceText(content, originalEvent, item);
}
}, {
key: "replaceText",
value: function replaceText(content, originalEvent, item) {
this.range.replaceTriggerText(content, true, true, originalEvent, item);
}
}, {
key: "_append",
value: function _append(collection, newValues, replace) {
if (typeof collection.values === "function") {
throw new Error("Unable to append to values, as it is a function.");
} else if (!replace) {
collection.values = collection.values.concat(newValues);
} else {
collection.values = newValues;
}
}
}, {
key: "append",
value: function append(collectionIndex, newValues, replace) {
var index = parseInt(collectionIndex);
if (typeof index !== "number") throw new Error("please provide an index for the collection to update.");
var collection = this.collection[index];
this._append(collection, newValues, replace);
}
}, {
key: "appendCurrent",
value: function appendCurrent(newValues, replace) {
if (this.isActive) {
this._append(this.current.collection, newValues, replace);
} else {
throw new Error("No active state. Please use append instead and pass an index.");
}
}
}, {
key: "detach",
value: function detach(el) {
if (!el) {
throw new Error("[Tribute] Must pass in a DOM node or NodeList.");
} // Check if it is a jQuery collection
if (typeof jQuery !== "undefined" && el instanceof jQuery) {
el = el.get();
} // Is el an Array/Array-like object?
if (el.constructor === NodeList || el.constructor === HTMLCollection || el.constructor === Array) {
var length = el.length;
for (var i = 0; i < length; ++i) {
this._detach(el[i]);
}
} else {
this._detach(el);
}
}
}, {
key: "_detach",
value: function _detach(el) {
var _this3 = this;
this.events.unbind(el);
if (el.tributeMenu) {
this.menuEvents.unbind(el.tributeMenu);
}
setTimeout(function () {
el.removeAttribute("data-tribute");
_this3.isActive = false;
if (el.tributeMenu) {
el.tributeMenu.remove();
}
});
}
}, {
key: "isActive",
get: function get() {
return this._isActive;
},
set: function set(val) {
if (this._isActive != val) {
this._isActive = val;
if (this.current.element) {
var noMatchEvent = new CustomEvent("tribute-active-".concat(val));
this.current.element.dispatchEvent(noMatchEvent);
}
}
}
}], [{
key: "defaultSelectTemplate",
value: function defaultSelectTemplate(item) {
if (typeof item === "undefined") return "".concat(this.current.collection.trigger).concat(this.current.mentionText);
if (this.range.isContentEditable(this.current.element)) {
return '<span class="tribute-mention">' + (this.current.collection.trigger + item.original[this.current.collection.fillAttr]) + "</span>";
}
return this.current.collection.trigger + item.original[this.current.collection.fillAttr];
}
}, {
key: "defaultMenuItemTemplate",
value: function defaultMenuItemTemplate(matchItem) {
return matchItem.string;
}
}, {
key: "inputTypes",
value: function inputTypes() {
return ["TEXTAREA", "INPUT"];
}
}]);
return Tribute;
}();
/**
* Tribute.js
* Native ES6 JavaScript @mention Plugin
**/
return Tribute;
})));
```
|
/content/code_sandbox/dist/tribute.js
|
javascript
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 14,008
|
```unknown
{"version":3,"file":"tribute.min.js","sources":["../src/utils.js","../src/TributeEvents.js","../src/TributeMenuEvents.js","../src/TributeRange.js","../src/TributeSearch.js","../src/Tribute.js"],"sourcesContent":["if (!Array.prototype.find) {\n Array.prototype.find = function(predicate) {\n if (this === null) {\n throw new TypeError('Array.prototype.find called on null or undefined')\n }\n if (typeof predicate !== 'function') {\n throw new TypeError('predicate must be a function')\n }\n var list = Object(this)\n var length = list.length >>> 0\n var thisArg = arguments[1]\n var value\n\n for (var i = 0; i < length; i++) {\n value = list[i]\n if (predicate.call(thisArg, value, i, list)) {\n return value\n }\n }\n return undefined\n }\n}\n\nif (window && typeof window.CustomEvent !== \"function\") {\n function CustomEvent(event, params) {\n params = params || {\n bubbles: false,\n cancelable: false,\n detail: undefined\n }\n var evt = document.createEvent('CustomEvent')\n evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail)\n return evt\n }\n\n if (typeof window.Event !== 'undefined') {\n CustomEvent.prototype = window.Event.prototype\n }\n\n window.CustomEvent = CustomEvent\n}","class TributeEvents {\n constructor(tribute) {\n this.tribute = tribute;\n this.tribute.events = this;\n }\n\n static keys() {\n return [\n {\n key: 9,\n value: \"TAB\"\n },\n {\n key: 8,\n value: \"DELETE\"\n },\n {\n key: 13,\n value: \"ENTER\"\n },\n {\n key: 27,\n value: \"ESCAPE\"\n },\n {\n key: 32,\n value: \"SPACE\"\n },\n {\n key: 38,\n value: \"UP\"\n },\n {\n key: 40,\n value: \"DOWN\"\n }\n ];\n }\n\n bind(element) {\n element.boundKeydown = this.keydown.bind(element, this);\n element.boundKeyup = this.keyup.bind(element, this);\n element.boundInput = this.input.bind(element, this);\n\n element.addEventListener(\"keydown\", element.boundKeydown, false);\n element.addEventListener(\"keyup\", element.boundKeyup, false);\n element.addEventListener(\"input\", element.boundInput, false);\n }\n\n unbind(element) {\n element.removeEventListener(\"keydown\", element.boundKeydown, false);\n element.removeEventListener(\"keyup\", element.boundKeyup, false);\n element.removeEventListener(\"input\", element.boundInput, false);\n\n delete element.boundKeydown;\n delete element.boundKeyup;\n delete element.boundInput;\n }\n\n keydown(instance, event) {\n if (instance.shouldDeactivate(event)) {\n instance.tribute.isActive = false;\n instance.tribute.hideMenu();\n }\n\n let element = this;\n instance.commandEvent = false;\n\n TributeEvents.keys().forEach(o => {\n if (o.key === event.keyCode) {\n instance.commandEvent = true;\n instance.callbacks()[o.value.toLowerCase()](event, element);\n }\n });\n }\n\n input(instance, event) {\n instance.inputEvent = true;\n instance.keyup.call(this, instance, event);\n }\n\n click(instance, event) {\n let tribute = instance.tribute;\n if (tribute.menu && tribute.menu.contains(event.target)) {\n let li = event.target;\n event.preventDefault();\n event.stopPropagation();\n while (li.nodeName.toLowerCase() !== \"li\") {\n li = li.parentNode;\n if (!li || li === tribute.menu) {\n throw new Error(\"cannot find the <li> container for the click\");\n }\n }\n tribute.selectItemAtIndex(li.getAttribute(\"data-index\"), event);\n tribute.hideMenu();\n\n // TODO: should fire with externalTrigger and target is outside of menu\n } else if (tribute.current.element && !tribute.current.externalTrigger) {\n tribute.current.externalTrigger = false;\n setTimeout(() => tribute.hideMenu());\n }\n }\n\n keyup(instance, event) {\n if (instance.inputEvent) {\n instance.inputEvent = false;\n }\n instance.updateSelection(this);\n\n if (event.keyCode === 27) return;\n\n if (!instance.tribute.allowSpaces && instance.tribute.hasTrailingSpace) {\n instance.tribute.hasTrailingSpace = false;\n instance.commandEvent = true;\n instance.callbacks()[\"space\"](event, this);\n return;\n }\n\n if (!instance.tribute.isActive) {\n if (instance.tribute.autocompleteMode) {\n instance.callbacks().triggerChar(event, this, \"\");\n } else {\n let keyCode = instance.getKeyCode(instance, this, event);\n\n if (isNaN(keyCode) || !keyCode) return;\n\n let trigger = instance.tribute.triggers().find(trigger => {\n return trigger.charCodeAt(0) === keyCode;\n });\n\n if (typeof trigger !== \"undefined\") {\n instance.callbacks().triggerChar(event, this, trigger);\n }\n }\n }\n\n if (\n instance.tribute.current.mentionText.length <\n instance.tribute.current.collection.menuShowMinLength\n ) {\n return;\n }\n\n if (\n ((instance.tribute.current.trigger ||\n instance.tribute.autocompleteMode) &&\n instance.commandEvent === false) ||\n (instance.tribute.isActive && event.keyCode === 8)\n ) {\n instance.tribute.showMenuFor(this, true);\n }\n }\n\n shouldDeactivate(event) {\n if (!this.tribute.isActive) return false;\n\n if (this.tribute.current.mentionText.length === 0) {\n let eventKeyPressed = false;\n TributeEvents.keys().forEach(o => {\n if (event.keyCode === o.key) eventKeyPressed = true;\n });\n\n return !eventKeyPressed;\n }\n\n return false;\n }\n\n getKeyCode(instance, el, event) {\n let char;\n let tribute = instance.tribute;\n let info = tribute.range.getTriggerInfo(\n false,\n tribute.hasTrailingSpace,\n true,\n tribute.allowSpaces,\n tribute.autocompleteMode\n );\n\n if (info) {\n return info.mentionTriggerChar.charCodeAt(0);\n } else {\n return false;\n }\n }\n\n updateSelection(el) {\n this.tribute.current.element = el;\n let info = this.tribute.range.getTriggerInfo(\n false,\n this.tribute.hasTrailingSpace,\n true,\n this.tribute.allowSpaces,\n this.tribute.autocompleteMode\n );\n\n if (info) {\n this.tribute.current.selectedPath = info.mentionSelectedPath;\n this.tribute.current.mentionText = info.mentionText;\n this.tribute.current.selectedOffset = info.mentionSelectedOffset;\n }\n }\n\n callbacks() {\n return {\n triggerChar: (e, el, trigger) => {\n let tribute = this.tribute;\n tribute.current.trigger = trigger;\n\n let collectionItem = tribute.collection.find(item => {\n return item.trigger === trigger;\n });\n\n tribute.current.collection = collectionItem;\n\n if (\n tribute.current.mentionText.length >=\n tribute.current.collection.menuShowMinLength &&\n tribute.inputEvent\n ) {\n tribute.showMenuFor(el, true);\n }\n },\n enter: (e, el) => {\n // choose selection\n if (this.tribute.isActive && this.tribute.current.filteredItems) {\n e.preventDefault();\n e.stopPropagation();\n setTimeout(() => {\n this.tribute.selectItemAtIndex(this.tribute.menuSelected, e);\n this.tribute.hideMenu();\n }, 0);\n }\n },\n escape: (e, el) => {\n if (this.tribute.isActive) {\n e.preventDefault();\n e.stopPropagation();\n this.tribute.isActive = false;\n this.tribute.hideMenu();\n }\n },\n tab: (e, el) => {\n // choose first match\n this.callbacks().enter(e, el);\n },\n space: (e, el) => {\n if (this.tribute.isActive) {\n if (this.tribute.spaceSelectsMatch) {\n this.callbacks().enter(e, el);\n } else if (!this.tribute.allowSpaces) {\n e.stopPropagation();\n setTimeout(() => {\n this.tribute.hideMenu();\n this.tribute.isActive = false;\n }, 0);\n }\n }\n },\n up: (e, el) => {\n // navigate up ul\n if (this.tribute.isActive && this.tribute.current.filteredItems) {\n e.preventDefault();\n e.stopPropagation();\n let count = this.tribute.current.filteredItems.length,\n selected = this.tribute.menuSelected;\n\n if (count > selected && selected > 0) {\n this.tribute.menuSelected--;\n this.setActiveLi();\n } else if (selected === 0) {\n this.tribute.menuSelected = count - 1;\n this.setActiveLi();\n this.tribute.menu.scrollTop = this.tribute.menu.scrollHeight;\n }\n }\n },\n down: (e, el) => {\n // navigate down ul\n if (this.tribute.isActive && this.tribute.current.filteredItems) {\n e.preventDefault();\n e.stopPropagation();\n let count = this.tribute.current.filteredItems.length - 1,\n selected = this.tribute.menuSelected;\n\n if (count > selected) {\n this.tribute.menuSelected++;\n this.setActiveLi();\n } else if (count === selected) {\n this.tribute.menuSelected = 0;\n this.setActiveLi();\n this.tribute.menu.scrollTop = 0;\n }\n }\n },\n delete: (e, el) => {\n if (\n this.tribute.isActive &&\n this.tribute.current.mentionText.length < 1\n ) {\n this.tribute.hideMenu();\n } else if (this.tribute.isActive) {\n this.tribute.showMenuFor(el);\n }\n }\n };\n }\n\n setActiveLi(index) {\n let lis = this.tribute.menu.querySelectorAll(\"li\"),\n length = lis.length >>> 0;\n\n if (index) this.tribute.menuSelected = parseInt(index);\n\n for (let i = 0; i < length; i++) {\n let li = lis[i];\n if (i === this.tribute.menuSelected) {\n li.classList.add(this.tribute.current.collection.selectClass);\n\n let liClientRect = li.getBoundingClientRect();\n let menuClientRect = this.tribute.menu.getBoundingClientRect();\n\n if (liClientRect.bottom > menuClientRect.bottom) {\n let scrollDistance = liClientRect.bottom - menuClientRect.bottom;\n this.tribute.menu.scrollTop += scrollDistance;\n } else if (liClientRect.top < menuClientRect.top) {\n let scrollDistance = menuClientRect.top - liClientRect.top;\n this.tribute.menu.scrollTop -= scrollDistance;\n }\n } else {\n li.classList.remove(this.tribute.current.collection.selectClass);\n }\n }\n }\n\n getFullHeight(elem, includeMargin) {\n let height = elem.getBoundingClientRect().height;\n\n if (includeMargin) {\n let style = elem.currentStyle || window.getComputedStyle(elem);\n return (\n height + parseFloat(style.marginTop) + parseFloat(style.marginBottom)\n );\n }\n\n return height;\n }\n}\n\nexport default TributeEvents;\n","class TributeMenuEvents {\n constructor(tribute) {\n this.tribute = tribute;\n this.tribute.menuEvents = this;\n this.menu = this.tribute.menu;\n }\n\n bind(menu) {\n this.menuClickEvent = this.tribute.events.click.bind(null, this);\n this.menuContainerScrollEvent = this.debounce(\n () => {\n if (this.tribute.isActive) {\n this.tribute.hideMenu();\n }\n },\n 10,\n false\n );\n this.windowResizeEvent = this.debounce(\n () => {\n if (this.tribute.isActive) {\n this.tribute.hideMenu();\n }\n },\n 10,\n false\n );\n\n // fixes IE11 issues with mousedown\n this.tribute.range\n .getDocument()\n .addEventListener(\"MSPointerDown\", this.menuClickEvent, false);\n this.tribute.range\n .getDocument()\n .addEventListener(\"mousedown\", this.menuClickEvent, false);\n window.addEventListener(\"resize\", this.windowResizeEvent);\n\n if (this.menuContainer) {\n this.menuContainer.addEventListener(\n \"scroll\",\n this.menuContainerScrollEvent,\n false\n );\n } else {\n window.addEventListener(\"scroll\", this.menuContainerScrollEvent);\n }\n }\n\n unbind(menu) {\n this.tribute.range\n .getDocument()\n .removeEventListener(\"mousedown\", this.menuClickEvent, false);\n this.tribute.range\n .getDocument()\n .removeEventListener(\"MSPointerDown\", this.menuClickEvent, false);\n window.removeEventListener(\"resize\", this.windowResizeEvent);\n\n if (this.menuContainer) {\n this.menuContainer.removeEventListener(\n \"scroll\",\n this.menuContainerScrollEvent,\n false\n );\n } else {\n window.removeEventListener(\"scroll\", this.menuContainerScrollEvent);\n }\n }\n\n debounce(func, wait, immediate) {\n var timeout;\n return () => {\n var context = this,\n args = arguments;\n var later = () => {\n timeout = null;\n if (!immediate) func.apply(context, args);\n };\n var callNow = immediate && !timeout;\n clearTimeout(timeout);\n timeout = setTimeout(later, wait);\n if (callNow) func.apply(context, args);\n };\n }\n}\n\nexport default TributeMenuEvents;\n","// Thanks to path_to_url \"./utils\";\n\nclass TributeRange {\n constructor(tribute) {\n this.tribute = tribute\n this.tribute.range = this\n }\n\n getDocument() {\n let iframe\n if (this.tribute.current.collection) {\n iframe = this.tribute.current.collection.iframe\n }\n\n if (!iframe) {\n return document\n }\n\n return iframe.contentWindow.document\n }\n\n positionMenuAtCaret(scrollTo) {\n let context = this.tribute.current,\n coordinates\n\n let info = this.getTriggerInfo(false, this.tribute.hasTrailingSpace, true, this.tribute.allowSpaces, this.tribute.autocompleteMode)\n\n if (typeof info !== 'undefined') {\n\n if(!this.tribute.positionMenu){\n this.tribute.menu.style.cssText = `display: block;`\n return\n }\n\n if (!this.isContentEditable(context.element)) {\n coordinates = this.getTextAreaOrInputUnderlinePosition(this.tribute.current.element,\n info.mentionPosition)\n }\n else {\n coordinates = this.getContentEditableCaretPosition(info.mentionPosition)\n }\n\n this.tribute.menu.style.cssText = `top: ${coordinates.top}px;\n left: ${coordinates.left}px;\n right: ${coordinates.right}px;\n bottom: ${coordinates.bottom}px;\n max-height: ${coordinates.maxHeight || 500}px;\n max-width: ${coordinates.maxWidth || 300}px;\n position: ${coordinates.position || 'absolute'};\n display: block;`\n\n if (coordinates.left === 'auto') {\n this.tribute.menu.style.left = 'auto'\n }\n\n if (coordinates.top === 'auto') {\n this.tribute.menu.style.top = 'auto'\n }\n\n if (scrollTo) this.scrollIntoView()\n\n } else {\n this.tribute.menu.style.cssText = 'display: none'\n }\n }\n\n get menuContainerIsBody() {\n return this.tribute.menuContainer === document.body || !this.tribute.menuContainer;\n }\n\n\n selectElement(targetElement, path, offset) {\n let range\n let elem = targetElement\n\n if (path) {\n for (var i = 0; i < path.length; i++) {\n elem = elem.childNodes[path[i]]\n if (elem === undefined) {\n return\n }\n while (elem.length < offset) {\n offset -= elem.length\n elem = elem.nextSibling\n }\n if (elem.childNodes.length === 0 && !elem.length) {\n elem = elem.previousSibling\n }\n }\n }\n let sel = this.getWindowSelection()\n\n range = this.getDocument().createRange()\n range.setStart(elem, offset)\n range.setEnd(elem, offset)\n range.collapse(true)\n\n try {\n sel.removeAllRanges()\n } catch (error) {}\n\n sel.addRange(range)\n targetElement.focus()\n }\n\n replaceTriggerText(text, requireLeadingSpace, hasTrailingSpace, originalEvent, item) {\n let info = this.getTriggerInfo(true, hasTrailingSpace, requireLeadingSpace, this.tribute.allowSpaces, this.tribute.autocompleteMode)\n\n if (info !== undefined) {\n let context = this.tribute.current\n let replaceEvent = new CustomEvent('tribute-replaced', {\n detail: {\n item: item,\n instance: context,\n context: info,\n event: originalEvent,\n }\n })\n\n if (!this.isContentEditable(context.element)) {\n let myField = this.tribute.current.element\n let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'\n ? this.tribute.replaceTextSuffix\n : ' '\n text += textSuffix\n let startPos = info.mentionPosition\n let endPos = info.mentionPosition + info.mentionText.length + textSuffix.length\n if (!this.tribute.autocompleteMode) {\n endPos += info.mentionTriggerChar.length - 1\n }\n myField.value = myField.value.substring(0, startPos) + text +\n myField.value.substring(endPos, myField.value.length)\n myField.selectionStart = startPos + text.length\n myField.selectionEnd = startPos + text.length\n } else {\n // add a space to the end of the pasted text\n let textSuffix = typeof this.tribute.replaceTextSuffix == 'string'\n ? this.tribute.replaceTextSuffix\n : '\\xA0'\n text += textSuffix\n let endPos = info.mentionPosition + info.mentionText.length\n if (!this.tribute.autocompleteMode) {\n endPos += info.mentionTriggerChar.length\n }\n this.pasteHtml(text, info.mentionPosition, endPos)\n }\n\n context.element.dispatchEvent(new CustomEvent('input', { bubbles: true }))\n context.element.dispatchEvent(replaceEvent)\n }\n }\n\n pasteHtml(html, startPos, endPos) {\n let range, sel\n sel = this.getWindowSelection()\n range = this.getDocument().createRange()\n range.setStart(sel.anchorNode, startPos)\n range.setEnd(sel.anchorNode, endPos)\n range.deleteContents()\n\n let el = this.getDocument().createElement('div')\n el.innerHTML = html\n let frag = this.getDocument().createDocumentFragment(),\n node, lastNode\n while ((node = el.firstChild)) {\n lastNode = frag.appendChild(node)\n }\n range.insertNode(frag)\n\n // Preserve the selection\n if (lastNode) {\n range = range.cloneRange()\n range.setStartAfter(lastNode)\n range.collapse(true)\n sel.removeAllRanges()\n sel.addRange(range)\n }\n }\n\n getWindowSelection() {\n if (this.tribute.collection.iframe) {\n return this.tribute.collection.iframe.contentWindow.getSelection()\n }\n\n return window.getSelection()\n }\n\n getNodePositionInParent(element) {\n if (element.parentNode === null) {\n return 0\n }\n\n for (var i = 0; i < element.parentNode.childNodes.length; i++) {\n let node = element.parentNode.childNodes[i]\n\n if (node === element) {\n return i\n }\n }\n }\n\n getContentEditableSelectedPath(ctx) {\n let sel = this.getWindowSelection()\n let selected = sel.anchorNode\n let path = []\n let offset\n\n if (selected != null) {\n let i\n let ce = selected.contentEditable\n while (selected !== null && ce !== 'true') {\n i = this.getNodePositionInParent(selected)\n path.push(i)\n selected = selected.parentNode\n if (selected !== null) {\n ce = selected.contentEditable\n }\n }\n path.reverse()\n\n // getRangeAt may not exist, need alternative\n offset = sel.getRangeAt(0).startOffset\n\n return {\n selected: selected,\n path: path,\n offset: offset\n }\n }\n }\n\n getTextPrecedingCurrentSelection() {\n let context = this.tribute.current,\n text = ''\n\n if (!this.isContentEditable(context.element)) {\n let textComponent = this.tribute.current.element;\n if (textComponent) {\n let startPos = textComponent.selectionStart\n if (textComponent.value && startPos >= 0) {\n text = textComponent.value.substring(0, startPos)\n }\n }\n\n } else {\n let selectedElem = this.getWindowSelection().anchorNode\n\n if (selectedElem != null) {\n let workingNodeContent = selectedElem.textContent\n let selectStartOffset = this.getWindowSelection().getRangeAt(0).startOffset\n\n if (workingNodeContent && selectStartOffset >= 0) {\n text = workingNodeContent.substring(0, selectStartOffset)\n }\n }\n }\n\n return text\n }\n\n getLastWordInText(text) {\n text = text.replace(/\\u00A0/g, ' '); // path_to_url var wordsArray;\n if (this.tribute.autocompleteSeparator) {\n wordsArray = text.split(this.tribute.autocompleteSeparator);\n } else {\n wordsArray = text.split(/\\s+/);\n }\n var worldsCount = wordsArray.length - 1;\n return wordsArray[worldsCount].trim();\n }\n\n getTriggerInfo(menuAlreadyActive, hasTrailingSpace, requireLeadingSpace, allowSpaces, isAutocomplete) {\n let ctx = this.tribute.current\n let selected, path, offset\n\n if (!this.isContentEditable(ctx.element)) {\n selected = this.tribute.current.element\n } else {\n let selectionInfo = this.getContentEditableSelectedPath(ctx)\n\n if (selectionInfo) {\n selected = selectionInfo.selected\n path = selectionInfo.path\n offset = selectionInfo.offset\n }\n }\n\n let effectiveRange = this.getTextPrecedingCurrentSelection()\n let lastWordOfEffectiveRange = this.getLastWordInText(effectiveRange)\n\n if (isAutocomplete) {\n return {\n mentionPosition: effectiveRange.length - lastWordOfEffectiveRange.length,\n mentionText: lastWordOfEffectiveRange,\n mentionSelectedElement: selected,\n mentionSelectedPath: path,\n mentionSelectedOffset: offset\n }\n }\n\n if (effectiveRange !== undefined && effectiveRange !== null) {\n let mostRecentTriggerCharPos = -1\n let triggerChar\n\n this.tribute.collection.forEach(config => {\n let c = config.trigger\n let idx = config.requireLeadingSpace ?\n this.lastIndexWithLeadingSpace(effectiveRange, c) :\n effectiveRange.lastIndexOf(c)\n\n if (idx > mostRecentTriggerCharPos) {\n mostRecentTriggerCharPos = idx\n triggerChar = c\n requireLeadingSpace = config.requireLeadingSpace\n }\n })\n\n if (mostRecentTriggerCharPos >= 0 &&\n (\n mostRecentTriggerCharPos === 0 ||\n !requireLeadingSpace ||\n /[\\xA0\\s]/g.test(\n effectiveRange.substring(\n mostRecentTriggerCharPos - 1,\n mostRecentTriggerCharPos)\n )\n )\n ) {\n let currentTriggerSnippet = effectiveRange.substring(mostRecentTriggerCharPos + triggerChar.length,\n effectiveRange.length)\n\n triggerChar = effectiveRange.substring(mostRecentTriggerCharPos, mostRecentTriggerCharPos + triggerChar.length)\n let firstSnippetChar = currentTriggerSnippet.substring(0, 1)\n let leadingSpace = currentTriggerSnippet.length > 0 &&\n (\n firstSnippetChar === ' ' ||\n firstSnippetChar === '\\xA0'\n )\n if (hasTrailingSpace) {\n currentTriggerSnippet = currentTriggerSnippet.trim()\n }\n\n let regex = allowSpaces ? /[^\\S ]/g : /[\\xA0\\s]/g;\n\n this.tribute.hasTrailingSpace = regex.test(currentTriggerSnippet);\n\n if (!leadingSpace && (menuAlreadyActive || !(regex.test(currentTriggerSnippet)))) {\n return {\n mentionPosition: mostRecentTriggerCharPos,\n mentionText: currentTriggerSnippet,\n mentionSelectedElement: selected,\n mentionSelectedPath: path,\n mentionSelectedOffset: offset,\n mentionTriggerChar: triggerChar\n }\n }\n }\n }\n }\n\n lastIndexWithLeadingSpace (str, trigger) {\n let reversedStr = str.split('').reverse().join('')\n let index = -1\n\n for (let cidx = 0, len = str.length; cidx < len; cidx++) {\n let firstChar = cidx === str.length - 1\n let leadingSpace = /\\s/.test(reversedStr[cidx + 1])\n\n let match = true\n for (let triggerIdx = trigger.length - 1; triggerIdx >= 0; triggerIdx--) {\n if (trigger[triggerIdx] !== reversedStr[cidx-triggerIdx]) {\n match = false\n break\n }\n }\n\n if (match && (firstChar || leadingSpace)) {\n index = str.length - 1 - cidx\n break\n }\n }\n\n return index\n }\n\n isContentEditable(element) {\n return element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA'\n }\n\n isMenuOffScreen(coordinates, menuDimensions) {\n let windowWidth = window.innerWidth\n let windowHeight = window.innerHeight\n let doc = document.documentElement\n let windowLeft = (window.pageXOffset || doc.scrollLeft) - (doc.clientLeft || 0)\n let windowTop = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0)\n\n let menuTop = typeof coordinates.top === 'number' ? coordinates.top : windowTop + windowHeight - coordinates.bottom - menuDimensions.height\n let menuRight = typeof coordinates.right === 'number' ? coordinates.right : coordinates.left + menuDimensions.width\n let menuBottom = typeof coordinates.bottom === 'number' ? coordinates.bottom : coordinates.top + menuDimensions.height\n let menuLeft = typeof coordinates.left === 'number' ? coordinates.left : windowLeft + windowWidth - coordinates.right - menuDimensions.width\n\n return {\n top: menuTop < Math.floor(windowTop),\n right: menuRight > Math.ceil(windowLeft + windowWidth),\n bottom: menuBottom > Math.ceil(windowTop + windowHeight),\n left: menuLeft < Math.floor(windowLeft)\n }\n }\n\n getMenuDimensions() {\n // Width of the menu depends of its contents and position\n // We must check what its width would be without any obstruction\n // This way, we can achieve good positioning for flipping the menu\n let dimensions = {\n width: null,\n height: null\n }\n\n this.tribute.menu.style.cssText = `top: 0px;\n left: 0px;\n position: fixed;\n display: block;\n visibility; hidden;\n max-height:500px;`\n dimensions.width = this.tribute.menu.offsetWidth\n dimensions.height = this.tribute.menu.offsetHeight\n\n this.tribute.menu.style.cssText = `display: none;`\n\n return dimensions\n }\n\n getTextAreaOrInputUnderlinePosition(element, position, flipped) {\n let properties = ['direction', 'boxSizing', 'width', 'height', 'overflowX',\n 'overflowY', 'borderTopWidth', 'borderRightWidth',\n 'borderBottomWidth', 'borderLeftWidth', 'borderStyle', 'paddingTop',\n 'paddingRight', 'paddingBottom', 'paddingLeft',\n 'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch',\n 'fontSize', 'fontSizeAdjust', 'lineHeight', 'fontFamily',\n 'textAlign', 'textTransform', 'textIndent',\n 'textDecoration', 'letterSpacing', 'wordSpacing'\n ]\n\n let isFirefox = (window.mozInnerScreenX !== null)\n\n let div = this.getDocument().createElement('div')\n div.id = 'input-textarea-caret-position-mirror-div'\n this.getDocument().body.appendChild(div)\n\n let style = div.style\n let computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle\n\n style.whiteSpace = 'pre-wrap'\n if (element.nodeName !== 'INPUT') {\n style.wordWrap = 'break-word'\n }\n\n style.position = 'absolute'\n style.visibility = 'hidden'\n\n // transfer the element's properties to the div\n properties.forEach(prop => {\n style[prop] = computed[prop]\n })\n\n //NOT SURE WHY THIS IS HERE AND IT DOESNT SEEM HELPFUL\n // if (isFirefox) {\n // style.width = `${(parseInt(computed.width) - 2)}px`\n // if (element.scrollHeight > parseInt(computed.height))\n // style.overflowY = 'scroll'\n // } else {\n // style.overflow = 'hidden'\n // }\n\n let span0 = document.createElement('span')\n span0.textContent = element.value.substring(0, position)\n div.appendChild(span0)\n\n if (element.nodeName === 'INPUT') {\n div.textContent = div.textContent.replace(/\\s/g, '')\n }\n\n //Create a span in the div that represents where the cursor\n //should be\n let span = this.getDocument().createElement('span')\n //we give it no content as this represents the cursor\n span.textContent = '​'\n div.appendChild(span)\n\n let span2 = this.getDocument().createElement('span');\n span2.textContent = element.value.substring(position);\n div.appendChild(span2);\n\n let rect = element.getBoundingClientRect()\n\n //position the div exactly over the element\n //so we can get the bounding client rect for the span and\n //it should represent exactly where the cursor is\n div.style.position = 'fixed';\n div.style.left = rect.left + 'px';\n div.style.top = rect.top + 'px';\n div.style.width = rect.width + 'px';\n div.style.height = rect.height + 'px';\n div.scrollTop = element.scrollTop;\n\n var spanRect = span.getBoundingClientRect();\n this.getDocument().body.removeChild(div)\n return this.getFixedCoordinatesRelativeToRect(spanRect);\n }\n\n getContentEditableCaretPosition(selectedNodePosition) {\n let range\n let sel = this.getWindowSelection()\n\n range = this.getDocument().createRange()\n range.setStart(sel.anchorNode, selectedNodePosition)\n range.setEnd(sel.anchorNode, selectedNodePosition)\n\n range.collapse(false)\n\n let rect = range.getBoundingClientRect()\n\n return this.getFixedCoordinatesRelativeToRect(rect);\n }\n\n getFixedCoordinatesRelativeToRect(rect) {\n let coordinates = {\n position: 'fixed',\n left: rect.left,\n top: rect.top + rect.height\n }\n\n let menuDimensions = this.getMenuDimensions()\n\n var availableSpaceOnTop = rect.top;\n var availableSpaceOnBottom = window.innerHeight - (rect.top + rect.height);\n\n //check to see where's the right place to put the menu vertically\n if (availableSpaceOnBottom < menuDimensions.height) {\n if (availableSpaceOnTop >= menuDimensions.height || availableSpaceOnTop > availableSpaceOnBottom) {\n coordinates.top = 'auto';\n coordinates.bottom = window.innerHeight - rect.top;\n if (availableSpaceOnBottom < menuDimensions.height) {\n coordinates.maxHeight = availableSpaceOnTop;\n }\n } else {\n if (availableSpaceOnTop < menuDimensions.height) {\n coordinates.maxHeight = availableSpaceOnBottom;\n }\n }\n }\n\n var availableSpaceOnLeft = rect.left;\n var availableSpaceOnRight = window.innerWidth - rect.left;\n\n //check to see where's the right place to put the menu horizontally\n if (availableSpaceOnRight < menuDimensions.width) {\n if (availableSpaceOnLeft >= menuDimensions.width || availableSpaceOnLeft > availableSpaceOnRight) {\n coordinates.left = 'auto';\n coordinates.right = window.innerWidth - rect.left;\n if (availableSpaceOnRight < menuDimensions.width) {\n coordinates.maxWidth = availableSpaceOnLeft;\n }\n } else {\n if (availableSpaceOnLeft < menuDimensions.width) {\n coordinates.maxWidth = availableSpaceOnRight;\n }\n }\n }\n\n return coordinates\n }\n\n scrollIntoView(elem) {\n let reasonableBuffer = 20,\n clientRect\n let maxScrollDisplacement = 100\n let e = this.menu\n\n if (typeof e === 'undefined') return;\n\n while (clientRect === undefined || clientRect.height === 0) {\n clientRect = e.getBoundingClientRect()\n\n if (clientRect.height === 0) {\n e = e.childNodes[0]\n if (e === undefined || !e.getBoundingClientRect) {\n return\n }\n }\n }\n\n let elemTop = clientRect.top\n let elemBottom = elemTop + clientRect.height\n\n if (elemTop < 0) {\n window.scrollTo(0, window.pageYOffset + clientRect.top - reasonableBuffer)\n } else if (elemBottom > window.innerHeight) {\n let maxY = window.pageYOffset + clientRect.top - reasonableBuffer\n\n if (maxY - window.pageYOffset > maxScrollDisplacement) {\n maxY = window.pageYOffset + maxScrollDisplacement\n }\n\n let targetY = window.pageYOffset - (window.innerHeight - elemBottom)\n\n if (targetY > maxY) {\n targetY = maxY\n }\n\n window.scrollTo(0, targetY)\n }\n }\n}\n\n\nexport default TributeRange;\n","// Thanks to path_to_url TributeSearch {\n constructor(tribute) {\n this.tribute = tribute\n this.tribute.search = this\n }\n\n simpleFilter(pattern, array) {\n return array.filter(string => {\n return this.test(pattern, string)\n })\n }\n\n test(pattern, string) {\n return this.match(pattern, string) !== null\n }\n\n match(pattern, string, opts) {\n opts = opts || {}\n let patternIdx = 0,\n result = [],\n len = string.length,\n totalScore = 0,\n currScore = 0,\n pre = opts.pre || '',\n post = opts.post || '',\n compareString = opts.caseSensitive && string || string.toLowerCase(),\n ch, compareChar\n\n if (opts.skip) {\n return {rendered: string, score: 0}\n }\n\n pattern = opts.caseSensitive && pattern || pattern.toLowerCase()\n\n let patternCache = this.traverse(compareString, pattern, 0, 0, [])\n if (!patternCache) {\n return null\n }\n return {\n rendered: this.render(string, patternCache.cache, pre, post),\n score: patternCache.score\n }\n }\n\n traverse(string, pattern, stringIndex, patternIndex, patternCache) {\n if (this.tribute.autocompleteSeparator) {\n // if the pattern search at end\n pattern = pattern.split(this.tribute.autocompleteSeparator).splice(-1)[0];\n }\n\n if (pattern.length === patternIndex) {\n\n // calculate score and copy the cache containing the indices where it's found\n return {\n score: this.calculateScore(patternCache),\n cache: patternCache.slice()\n }\n }\n\n // if string at end or remaining pattern > remaining string\n if (string.length === stringIndex || pattern.length - patternIndex > string.length - stringIndex) {\n return undefined\n }\n\n let c = pattern[patternIndex]\n let index = string.indexOf(c, stringIndex)\n let best, temp\n\n while (index > -1) {\n patternCache.push(index)\n temp = this.traverse(string, pattern, index + 1, patternIndex + 1, patternCache)\n patternCache.pop()\n\n // if downstream traversal failed, return best answer so far\n if (!temp) {\n return best\n }\n\n if (!best || best.score < temp.score) {\n best = temp\n }\n\n index = string.indexOf(c, index + 1)\n }\n\n return best\n }\n\n calculateScore(patternCache) {\n let score = 0\n let temp = 1\n\n patternCache.forEach((index, i) => {\n if (i > 0) {\n if (patternCache[i - 1] + 1 === index) {\n temp += temp + 1\n }\n else {\n temp = 1\n }\n }\n\n score += temp\n })\n\n return score\n }\n\n render(string, indices, pre, post) {\n var rendered = string.substring(0, indices[0])\n\n indices.forEach((index, i) => {\n rendered += pre + string[index] + post +\n string.substring(index + 1, (indices[i + 1]) ? indices[i + 1] : string.length)\n })\n\n return rendered\n }\n\n filter(pattern, arr, opts) {\n opts = opts || {}\n return arr\n .reduce((prev, element, idx, arr) => {\n let str = element\n\n if (opts.extract) {\n str = opts.extract(element)\n\n if (!str) { // take care of undefineds / nulls / etc.\n str = ''\n }\n }\n\n let rendered = this.match(pattern, str, opts)\n\n if (rendered != null) {\n prev[prev.length] = {\n string: rendered.rendered,\n score: rendered.score,\n index: idx,\n original: element\n }\n }\n\n return prev\n }, [])\n\n .sort((a, b) => {\n let compare = b.score - a.score\n if (compare) return compare\n return a.index - b.index\n })\n }\n}\n\nexport default TributeSearch;\n","import \"./utils\";\nimport TributeEvents from \"./TributeEvents\";\nimport TributeMenuEvents from \"./TributeMenuEvents\";\nimport TributeRange from \"./TributeRange\";\nimport TributeSearch from \"./TributeSearch\";\n\nclass Tribute {\n constructor({\n values = null,\n loadingItemTemplate = null,\n iframe = null,\n selectClass = \"highlight\",\n containerClass = \"tribute-container\",\n itemClass = \"\",\n trigger = \"@\",\n autocompleteMode = false,\n autocompleteSeparator = null,\n selectTemplate = null,\n menuItemTemplate = null,\n lookup = \"key\",\n fillAttr = \"value\",\n collection = null,\n menuContainer = null,\n noMatchTemplate = null,\n requireLeadingSpace = true,\n allowSpaces = false,\n replaceTextSuffix = null,\n positionMenu = true,\n spaceSelectsMatch = false,\n searchOpts = {},\n menuItemLimit = null,\n menuShowMinLength = 0\n }) {\n this.autocompleteMode = autocompleteMode;\n this.autocompleteSeparator = autocompleteSeparator;\n this.menuSelected = 0;\n this.current = {};\n this.inputEvent = false;\n this.isActive = false;\n this.menuContainer = menuContainer;\n this.allowSpaces = allowSpaces;\n this.replaceTextSuffix = replaceTextSuffix;\n this.positionMenu = positionMenu;\n this.hasTrailingSpace = false;\n this.spaceSelectsMatch = spaceSelectsMatch;\n\n if (this.autocompleteMode) {\n trigger = \"\";\n allowSpaces = false;\n }\n\n if (values) {\n this.collection = [\n {\n // symbol that starts the lookup\n trigger: trigger,\n\n // is it wrapped in an iframe\n iframe: iframe,\n\n // class applied to selected item\n selectClass: selectClass,\n\n // class applied to the Container\n containerClass: containerClass,\n\n // class applied to each item\n itemClass: itemClass,\n\n // function called on select that retuns the content to insert\n selectTemplate: (\n selectTemplate || Tribute.defaultSelectTemplate\n ).bind(this),\n\n // function called that returns content for an item\n menuItemTemplate: (\n menuItemTemplate || Tribute.defaultMenuItemTemplate\n ).bind(this),\n\n // function called when menu is empty, disables hiding of menu.\n noMatchTemplate: (t => {\n if (typeof t === \"string\") {\n if (t.trim() === \"\") return null;\n return t;\n }\n if (typeof t === \"function\") {\n return t.bind(this);\n }\n\n return (\n noMatchTemplate ||\n function() {\n return \"<li>No Match Found!</li>\";\n }.bind(this)\n );\n })(noMatchTemplate),\n\n // column to search against in the object\n lookup: lookup,\n\n // column that contains the content to insert by default\n fillAttr: fillAttr,\n\n // array of objects or a function returning an array of objects\n values: values,\n\n // useful for when values is an async function\n loadingItemTemplate: loadingItemTemplate,\n\n requireLeadingSpace: requireLeadingSpace,\n\n searchOpts: searchOpts,\n\n menuItemLimit: menuItemLimit,\n\n menuShowMinLength: menuShowMinLength\n }\n ];\n } else if (collection) {\n if (this.autocompleteMode)\n console.warn(\n \"Tribute in autocomplete mode does not work for collections\"\n );\n this.collection = collection.map(item => {\n return {\n trigger: item.trigger || trigger,\n iframe: item.iframe || iframe,\n selectClass: item.selectClass || selectClass,\n containerClass: item.containerClass || containerClass,\n itemClass: item.itemClass || itemClass,\n selectTemplate: (\n item.selectTemplate || Tribute.defaultSelectTemplate\n ).bind(this),\n menuItemTemplate: (\n item.menuItemTemplate || Tribute.defaultMenuItemTemplate\n ).bind(this),\n // function called when menu is empty, disables hiding of menu.\n noMatchTemplate: (t => {\n if (typeof t === \"string\") {\n if (t.trim() === \"\") return null;\n return t;\n }\n if (typeof t === \"function\") {\n return t.bind(this);\n }\n\n return (\n noMatchTemplate ||\n function() {\n return \"<li>No Match Found!</li>\";\n }.bind(this)\n );\n })(noMatchTemplate),\n lookup: item.lookup || lookup,\n fillAttr: item.fillAttr || fillAttr,\n values: item.values,\n loadingItemTemplate: item.loadingItemTemplate,\n requireLeadingSpace: item.requireLeadingSpace,\n searchOpts: item.searchOpts || searchOpts,\n menuItemLimit: item.menuItemLimit || menuItemLimit,\n menuShowMinLength: item.menuShowMinLength || menuShowMinLength\n };\n });\n } else {\n throw new Error(\"[Tribute] No collection specified.\");\n }\n\n new TributeRange(this);\n new TributeEvents(this);\n new TributeMenuEvents(this);\n new TributeSearch(this);\n }\n\n get isActive() {\n return this._isActive;\n }\n\n set isActive(val) {\n if (this._isActive != val) {\n this._isActive = val;\n if (this.current.element) {\n let noMatchEvent = new CustomEvent(`tribute-active-${val}`);\n this.current.element.dispatchEvent(noMatchEvent);\n }\n }\n }\n\n static defaultSelectTemplate(item) {\n if (typeof item === \"undefined\")\n return `${this.current.collection.trigger}${this.current.mentionText}`;\n if (this.range.isContentEditable(this.current.element)) {\n return (\n '<span class=\"tribute-mention\">' +\n (this.current.collection.trigger +\n item.original[this.current.collection.fillAttr]) +\n \"</span>\"\n );\n }\n\n return (\n this.current.collection.trigger +\n item.original[this.current.collection.fillAttr]\n );\n }\n\n static defaultMenuItemTemplate(matchItem) {\n return matchItem.string;\n }\n\n static inputTypes() {\n return [\"TEXTAREA\", \"INPUT\"];\n }\n\n triggers() {\n return this.collection.map(config => {\n return config.trigger;\n });\n }\n\n attach(el) {\n if (!el) {\n throw new Error(\"[Tribute] Must pass in a DOM node or NodeList.\");\n }\n\n // Check if it is a jQuery collection\n if (typeof jQuery !== \"undefined\" && el instanceof jQuery) {\n el = el.get();\n }\n\n // Is el an Array/Array-like object?\n if (\n el.constructor === NodeList ||\n el.constructor === HTMLCollection ||\n el.constructor === Array\n ) {\n let length = el.length;\n for (var i = 0; i < length; ++i) {\n this._attach(el[i]);\n }\n } else {\n this._attach(el);\n }\n }\n\n _attach(el) {\n if (el.hasAttribute(\"data-tribute\")) {\n console.warn(\"Tribute was already bound to \" + el.nodeName);\n }\n\n this.ensureEditable(el);\n this.events.bind(el);\n el.setAttribute(\"data-tribute\", true);\n }\n\n ensureEditable(element) {\n if (Tribute.inputTypes().indexOf(element.nodeName) === -1) {\n if (element.contentEditable) {\n element.contentEditable = true;\n } else {\n throw new Error(\"[Tribute] Cannot bind to \" + element.nodeName);\n }\n }\n }\n\n createMenu(containerClass) {\n let wrapper = this.range.getDocument().createElement(\"div\"),\n ul = this.range.getDocument().createElement(\"ul\");\n wrapper.className = containerClass;\n wrapper.appendChild(ul);\n\n if (this.menuContainer) {\n return this.menuContainer.appendChild(wrapper);\n }\n\n return this.range.getDocument().body.appendChild(wrapper);\n }\n\n showMenuFor(element, scrollTo) {\n // Only proceed if menu isn't already shown for the current element & mentionText\n if (\n this.isActive &&\n this.current.element === element &&\n this.current.mentionText === this.currentMentionTextSnapshot\n ) {\n return;\n }\n this.currentMentionTextSnapshot = this.current.mentionText;\n\n // create the menu if it doesn't exist.\n if (!this.menu) {\n this.menu = this.createMenu(this.current.collection.containerClass);\n element.tributeMenu = this.menu;\n this.menuEvents.bind(this.menu);\n }\n\n this.isActive = true;\n this.menuSelected = 0;\n\n if (!this.current.mentionText) {\n this.current.mentionText = \"\";\n }\n\n const processValues = values => {\n // Tribute may not be active any more by the time the value callback returns\n if (!this.isActive) {\n return;\n }\n\n let items = this.search.filter(this.current.mentionText, values, {\n pre: this.current.collection.searchOpts.pre || \"<span>\",\n post: this.current.collection.searchOpts.post || \"</span>\",\n skip: this.current.collection.searchOpts.skip,\n extract: el => {\n if (typeof this.current.collection.lookup === \"string\") {\n return el[this.current.collection.lookup];\n } else if (typeof this.current.collection.lookup === \"function\") {\n return this.current.collection.lookup(el, this.current.mentionText);\n } else {\n throw new Error(\n \"Invalid lookup attribute, lookup must be string or function.\"\n );\n }\n }\n });\n\n if (this.current.collection.menuItemLimit) {\n items = items.slice(0, this.current.collection.menuItemLimit);\n }\n\n this.current.filteredItems = items;\n\n let ul = this.menu.querySelector(\"ul\");\n\n if (!items.length) {\n let noMatchEvent = new CustomEvent(\"tribute-no-match\", {\n detail: this.menu\n });\n this.current.element.dispatchEvent(noMatchEvent);\n if (\n (typeof this.current.collection.noMatchTemplate === \"function\" &&\n !this.current.collection.noMatchTemplate()) ||\n !this.current.collection.noMatchTemplate\n ) {\n this.hideMenu();\n } else {\n typeof this.current.collection.noMatchTemplate === \"function\"\n ? 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```
|
/content/code_sandbox/dist/tribute.min.js.map
|
unknown
| 2016-01-19T00:54:39
| 2024-08-14T11:30:58
|
tribute
|
zurb/tribute
| 2,017
| 30,451
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Boolean AND int
type IAND struct{ base.NoOperandsInstruction }
func (self *IAND) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
result := v1 & v2
stack.PushInt(result)
}
// Boolean AND long
type LAND struct{ base.NoOperandsInstruction }
func (self *LAND) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
result := v1 & v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/and.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 158
|
```go
package classfile
/*
LineNumberTable_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 line_number_table_length;
{ u2 start_pc;
u2 line_number;
} line_number_table[line_number_table_length];
}
*/
type LineNumberTableAttribute struct {
lineNumberTable []*LineNumberTableEntry
}
type LineNumberTableEntry struct {
startPc uint16
lineNumber uint16
}
func (self *LineNumberTableAttribute) readInfo(reader *ClassReader) {
lineNumberTableLength := reader.readUint16()
self.lineNumberTable = make([]*LineNumberTableEntry, lineNumberTableLength)
for i := range self.lineNumberTable {
self.lineNumberTable[i] = &LineNumberTableEntry{
startPc: reader.readUint16(),
lineNumber: reader.readUint16(),
}
}
}
func (self *LineNumberTableAttribute) GetLineNumber(pc int) int {
for i := len(self.lineNumberTable) - 1; i >= 0; i-- {
entry := self.lineNumberTable[i]
if pc >= int(entry.startPc) {
return int(entry.lineNumber)
}
}
return -1
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_line_number_table.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 255
|
```go
package instructions
import "fmt"
import "jvmgo/ch11/instructions/base"
import . "jvmgo/ch11/instructions/comparisons"
import . "jvmgo/ch11/instructions/constants"
import . "jvmgo/ch11/instructions/control"
import . "jvmgo/ch11/instructions/conversions"
import . "jvmgo/ch11/instructions/extended"
import . "jvmgo/ch11/instructions/loads"
import . "jvmgo/ch11/instructions/math"
import . "jvmgo/ch11/instructions/references"
import . "jvmgo/ch11/instructions/reserved"
import . "jvmgo/ch11/instructions/stack"
import . "jvmgo/ch11/instructions/stores"
// NoOperandsInstruction singletons
var (
nop = &NOP{}
aconst_null = &ACONST_NULL{}
iconst_m1 = &ICONST_M1{}
iconst_0 = &ICONST_0{}
iconst_1 = &ICONST_1{}
iconst_2 = &ICONST_2{}
iconst_3 = &ICONST_3{}
iconst_4 = &ICONST_4{}
iconst_5 = &ICONST_5{}
lconst_0 = &LCONST_0{}
lconst_1 = &LCONST_1{}
fconst_0 = &FCONST_0{}
fconst_1 = &FCONST_1{}
fconst_2 = &FCONST_2{}
dconst_0 = &DCONST_0{}
dconst_1 = &DCONST_1{}
iload_0 = &ILOAD_0{}
iload_1 = &ILOAD_1{}
iload_2 = &ILOAD_2{}
iload_3 = &ILOAD_3{}
lload_0 = &LLOAD_0{}
lload_1 = &LLOAD_1{}
lload_2 = &LLOAD_2{}
lload_3 = &LLOAD_3{}
fload_0 = &FLOAD_0{}
fload_1 = &FLOAD_1{}
fload_2 = &FLOAD_2{}
fload_3 = &FLOAD_3{}
dload_0 = &DLOAD_0{}
dload_1 = &DLOAD_1{}
dload_2 = &DLOAD_2{}
dload_3 = &DLOAD_3{}
aload_0 = &ALOAD_0{}
aload_1 = &ALOAD_1{}
aload_2 = &ALOAD_2{}
aload_3 = &ALOAD_3{}
iaload = &IALOAD{}
laload = &LALOAD{}
faload = &FALOAD{}
daload = &DALOAD{}
aaload = &AALOAD{}
baload = &BALOAD{}
caload = &CALOAD{}
saload = &SALOAD{}
istore_0 = &ISTORE_0{}
istore_1 = &ISTORE_1{}
istore_2 = &ISTORE_2{}
istore_3 = &ISTORE_3{}
lstore_0 = &LSTORE_0{}
lstore_1 = &LSTORE_1{}
lstore_2 = &LSTORE_2{}
lstore_3 = &LSTORE_3{}
fstore_0 = &FSTORE_0{}
fstore_1 = &FSTORE_1{}
fstore_2 = &FSTORE_2{}
fstore_3 = &FSTORE_3{}
dstore_0 = &DSTORE_0{}
dstore_1 = &DSTORE_1{}
dstore_2 = &DSTORE_2{}
dstore_3 = &DSTORE_3{}
astore_0 = &ASTORE_0{}
astore_1 = &ASTORE_1{}
astore_2 = &ASTORE_2{}
astore_3 = &ASTORE_3{}
iastore = &IASTORE{}
lastore = &LASTORE{}
fastore = &FASTORE{}
dastore = &DASTORE{}
aastore = &AASTORE{}
bastore = &BASTORE{}
castore = &CASTORE{}
sastore = &SASTORE{}
pop = &POP{}
pop2 = &POP2{}
dup = &DUP{}
dup_x1 = &DUP_X1{}
dup_x2 = &DUP_X2{}
dup2 = &DUP2{}
dup2_x1 = &DUP2_X1{}
dup2_x2 = &DUP2_X2{}
swap = &SWAP{}
iadd = &IADD{}
ladd = &LADD{}
fadd = &FADD{}
dadd = &DADD{}
isub = &ISUB{}
lsub = &LSUB{}
fsub = &FSUB{}
dsub = &DSUB{}
imul = &IMUL{}
lmul = &LMUL{}
fmul = &FMUL{}
dmul = &DMUL{}
idiv = &IDIV{}
ldiv = &LDIV{}
fdiv = &FDIV{}
ddiv = &DDIV{}
irem = &IREM{}
lrem = &LREM{}
frem = &FREM{}
drem = &DREM{}
ineg = &INEG{}
lneg = &LNEG{}
fneg = &FNEG{}
dneg = &DNEG{}
ishl = &ISHL{}
lshl = &LSHL{}
ishr = &ISHR{}
lshr = &LSHR{}
iushr = &IUSHR{}
lushr = &LUSHR{}
iand = &IAND{}
land = &LAND{}
ior = &IOR{}
lor = &LOR{}
ixor = &IXOR{}
lxor = &LXOR{}
i2l = &I2L{}
i2f = &I2F{}
i2d = &I2D{}
l2i = &L2I{}
l2f = &L2F{}
l2d = &L2D{}
f2i = &F2I{}
f2l = &F2L{}
f2d = &F2D{}
d2i = &D2I{}
d2l = &D2L{}
d2f = &D2F{}
i2b = &I2B{}
i2c = &I2C{}
i2s = &I2S{}
lcmp = &LCMP{}
fcmpl = &FCMPL{}
fcmpg = &FCMPG{}
dcmpl = &DCMPL{}
dcmpg = &DCMPG{}
ireturn = &IRETURN{}
lreturn = &LRETURN{}
freturn = &FRETURN{}
dreturn = &DRETURN{}
areturn = &ARETURN{}
_return = &RETURN{}
arraylength = &ARRAY_LENGTH{}
athrow = &ATHROW{}
monitorenter = &MONITOR_ENTER{}
monitorexit = &MONITOR_EXIT{}
invoke_native = &INVOKE_NATIVE{}
)
func NewInstruction(opcode byte) base.Instruction {
switch opcode {
case 0x00:
return nop
case 0x01:
return aconst_null
case 0x02:
return iconst_m1
case 0x03:
return iconst_0
case 0x04:
return iconst_1
case 0x05:
return iconst_2
case 0x06:
return iconst_3
case 0x07:
return iconst_4
case 0x08:
return iconst_5
case 0x09:
return lconst_0
case 0x0a:
return lconst_1
case 0x0b:
return fconst_0
case 0x0c:
return fconst_1
case 0x0d:
return fconst_2
case 0x0e:
return dconst_0
case 0x0f:
return dconst_1
case 0x10:
return &BIPUSH{}
case 0x11:
return &SIPUSH{}
case 0x12:
return &LDC{}
case 0x13:
return &LDC_W{}
case 0x14:
return &LDC2_W{}
case 0x15:
return &ILOAD{}
case 0x16:
return &LLOAD{}
case 0x17:
return &FLOAD{}
case 0x18:
return &DLOAD{}
case 0x19:
return &ALOAD{}
case 0x1a:
return iload_0
case 0x1b:
return iload_1
case 0x1c:
return iload_2
case 0x1d:
return iload_3
case 0x1e:
return lload_0
case 0x1f:
return lload_1
case 0x20:
return lload_2
case 0x21:
return lload_3
case 0x22:
return fload_0
case 0x23:
return fload_1
case 0x24:
return fload_2
case 0x25:
return fload_3
case 0x26:
return dload_0
case 0x27:
return dload_1
case 0x28:
return dload_2
case 0x29:
return dload_3
case 0x2a:
return aload_0
case 0x2b:
return aload_1
case 0x2c:
return aload_2
case 0x2d:
return aload_3
case 0x2e:
return iaload
case 0x2f:
return laload
case 0x30:
return faload
case 0x31:
return daload
case 0x32:
return aaload
case 0x33:
return baload
case 0x34:
return caload
case 0x35:
return saload
case 0x36:
return &ISTORE{}
case 0x37:
return &LSTORE{}
case 0x38:
return &FSTORE{}
case 0x39:
return &DSTORE{}
case 0x3a:
return &ASTORE{}
case 0x3b:
return istore_0
case 0x3c:
return istore_1
case 0x3d:
return istore_2
case 0x3e:
return istore_3
case 0x3f:
return lstore_0
case 0x40:
return lstore_1
case 0x41:
return lstore_2
case 0x42:
return lstore_3
case 0x43:
return fstore_0
case 0x44:
return fstore_1
case 0x45:
return fstore_2
case 0x46:
return fstore_3
case 0x47:
return dstore_0
case 0x48:
return dstore_1
case 0x49:
return dstore_2
case 0x4a:
return dstore_3
case 0x4b:
return astore_0
case 0x4c:
return astore_1
case 0x4d:
return astore_2
case 0x4e:
return astore_3
case 0x4f:
return iastore
case 0x50:
return lastore
case 0x51:
return fastore
case 0x52:
return dastore
case 0x53:
return aastore
case 0x54:
return bastore
case 0x55:
return castore
case 0x56:
return sastore
case 0x57:
return pop
case 0x58:
return pop2
case 0x59:
return dup
case 0x5a:
return dup_x1
case 0x5b:
return dup_x2
case 0x5c:
return dup2
case 0x5d:
return dup2_x1
case 0x5e:
return dup2_x2
case 0x5f:
return swap
case 0x60:
return iadd
case 0x61:
return ladd
case 0x62:
return fadd
case 0x63:
return dadd
case 0x64:
return isub
case 0x65:
return lsub
case 0x66:
return fsub
case 0x67:
return dsub
case 0x68:
return imul
case 0x69:
return lmul
case 0x6a:
return fmul
case 0x6b:
return dmul
case 0x6c:
return idiv
case 0x6d:
return ldiv
case 0x6e:
return fdiv
case 0x6f:
return ddiv
case 0x70:
return irem
case 0x71:
return lrem
case 0x72:
return frem
case 0x73:
return drem
case 0x74:
return ineg
case 0x75:
return lneg
case 0x76:
return fneg
case 0x77:
return dneg
case 0x78:
return ishl
case 0x79:
return lshl
case 0x7a:
return ishr
case 0x7b:
return lshr
case 0x7c:
return iushr
case 0x7d:
return lushr
case 0x7e:
return iand
case 0x7f:
return land
case 0x80:
return ior
case 0x81:
return lor
case 0x82:
return ixor
case 0x83:
return lxor
case 0x84:
return &IINC{}
case 0x85:
return i2l
case 0x86:
return i2f
case 0x87:
return i2d
case 0x88:
return l2i
case 0x89:
return l2f
case 0x8a:
return l2d
case 0x8b:
return f2i
case 0x8c:
return f2l
case 0x8d:
return f2d
case 0x8e:
return d2i
case 0x8f:
return d2l
case 0x90:
return d2f
case 0x91:
return i2b
case 0x92:
return i2c
case 0x93:
return i2s
case 0x94:
return lcmp
case 0x95:
return fcmpl
case 0x96:
return fcmpg
case 0x97:
return dcmpl
case 0x98:
return dcmpg
case 0x99:
return &IFEQ{}
case 0x9a:
return &IFNE{}
case 0x9b:
return &IFLT{}
case 0x9c:
return &IFGE{}
case 0x9d:
return &IFGT{}
case 0x9e:
return &IFLE{}
case 0x9f:
return &IF_ICMPEQ{}
case 0xa0:
return &IF_ICMPNE{}
case 0xa1:
return &IF_ICMPLT{}
case 0xa2:
return &IF_ICMPGE{}
case 0xa3:
return &IF_ICMPGT{}
case 0xa4:
return &IF_ICMPLE{}
case 0xa5:
return &IF_ACMPEQ{}
case 0xa6:
return &IF_ACMPNE{}
case 0xa7:
return &GOTO{}
// case 0xa8:
// return &JSR{}
// case 0xa9:
// return &RET{}
case 0xaa:
return &TABLE_SWITCH{}
case 0xab:
return &LOOKUP_SWITCH{}
case 0xac:
return ireturn
case 0xad:
return lreturn
case 0xae:
return freturn
case 0xaf:
return dreturn
case 0xb0:
return areturn
case 0xb1:
return _return
case 0xb2:
return &GET_STATIC{}
case 0xb3:
return &PUT_STATIC{}
case 0xb4:
return &GET_FIELD{}
case 0xb5:
return &PUT_FIELD{}
case 0xb6:
return &INVOKE_VIRTUAL{}
case 0xb7:
return &INVOKE_SPECIAL{}
case 0xb8:
return &INVOKE_STATIC{}
case 0xb9:
return &INVOKE_INTERFACE{}
// case 0xba:
// return &INVOKE_DYNAMIC{}
case 0xbb:
return &NEW{}
case 0xbc:
return &NEW_ARRAY{}
case 0xbd:
return &ANEW_ARRAY{}
case 0xbe:
return arraylength
case 0xbf:
return athrow
case 0xc0:
return &CHECK_CAST{}
case 0xc1:
return &INSTANCE_OF{}
case 0xc2:
return monitorenter
case 0xc3:
return monitorexit
case 0xc4:
return &WIDE{}
case 0xc5:
return &MULTI_ANEW_ARRAY{}
case 0xc6:
return &IFNULL{}
case 0xc7:
return &IFNONNULL{}
case 0xc8:
return &GOTO_W{}
// case 0xc9:
// return &JSR_W{}
// case 0xca: breakpoint
case 0xfe:
return invoke_native
// case 0xff: impdep2
default:
panic(fmt.Errorf("Unsupported opcode: 0x%x!", opcode))
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/factory.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 4,240
|
```go
package stores
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Store int into local variable
type ISTORE struct{ base.Index8Instruction }
func (self *ISTORE) Execute(frame *rtda.Frame) {
_istore(frame, uint(self.Index))
}
type ISTORE_0 struct{ base.NoOperandsInstruction }
func (self *ISTORE_0) Execute(frame *rtda.Frame) {
_istore(frame, 0)
}
type ISTORE_1 struct{ base.NoOperandsInstruction }
func (self *ISTORE_1) Execute(frame *rtda.Frame) {
_istore(frame, 1)
}
type ISTORE_2 struct{ base.NoOperandsInstruction }
func (self *ISTORE_2) Execute(frame *rtda.Frame) {
_istore(frame, 2)
}
type ISTORE_3 struct{ base.NoOperandsInstruction }
func (self *ISTORE_3) Execute(frame *rtda.Frame) {
_istore(frame, 3)
}
func _istore(frame *rtda.Frame, index uint) {
val := frame.OperandStack().PopInt()
frame.LocalVars().SetInt(index, val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stores/istore.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 270
|
```go
package comparisons
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Compare float
type FCMPG struct{ base.NoOperandsInstruction }
func (self *FCMPG) Execute(frame *rtda.Frame) {
_fcmp(frame, true)
}
type FCMPL struct{ base.NoOperandsInstruction }
func (self *FCMPL) Execute(frame *rtda.Frame) {
_fcmp(frame, false)
}
func _fcmp(frame *rtda.Frame, gFlag bool) {
stack := frame.OperandStack()
v2 := stack.PopFloat()
v1 := stack.PopFloat()
if v1 > v2 {
stack.PushInt(1)
} else if v1 == v2 {
stack.PushInt(0)
} else if v1 < v2 {
stack.PushInt(-1)
} else if gFlag {
stack.PushInt(1)
} else {
stack.PushInt(-1)
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/comparisons/fcmp.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 217
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Invoke a class (static) method
type INVOKE_STATIC struct{ base.Index16Instruction }
func (self *INVOKE_STATIC) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
methodRef := cp.GetConstant(self.Index).(*heap.MethodRef)
resolvedMethod := methodRef.ResolvedMethod()
if !resolvedMethod.IsStatic() {
panic("java.lang.IncompatibleClassChangeError")
}
class := resolvedMethod.Class()
if !class.InitStarted() {
frame.RevertNextPC()
base.InitClass(frame.Thread(), class)
return
}
base.InvokeMethod(frame, resolvedMethod)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/invokestatic.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 174
|
```go
package comparisons
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Branch if int comparison with zero succeeds
type IFEQ struct{ base.BranchInstruction }
func (self *IFEQ) Execute(frame *rtda.Frame) {
val := frame.OperandStack().PopInt()
if val == 0 {
base.Branch(frame, self.Offset)
}
}
type IFNE struct{ base.BranchInstruction }
func (self *IFNE) Execute(frame *rtda.Frame) {
val := frame.OperandStack().PopInt()
if val != 0 {
base.Branch(frame, self.Offset)
}
}
type IFLT struct{ base.BranchInstruction }
func (self *IFLT) Execute(frame *rtda.Frame) {
val := frame.OperandStack().PopInt()
if val < 0 {
base.Branch(frame, self.Offset)
}
}
type IFLE struct{ base.BranchInstruction }
func (self *IFLE) Execute(frame *rtda.Frame) {
val := frame.OperandStack().PopInt()
if val <= 0 {
base.Branch(frame, self.Offset)
}
}
type IFGT struct{ base.BranchInstruction }
func (self *IFGT) Execute(frame *rtda.Frame) {
val := frame.OperandStack().PopInt()
if val > 0 {
base.Branch(frame, self.Offset)
}
}
type IFGE struct{ base.BranchInstruction }
func (self *IFGE) Execute(frame *rtda.Frame) {
val := frame.OperandStack().PopInt()
if val >= 0 {
base.Branch(frame, self.Offset)
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/comparisons/ifcond.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 348
|
```go
package conversions
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Convert double to float
type D2F struct{ base.NoOperandsInstruction }
func (self *D2F) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
d := stack.PopDouble()
f := float32(d)
stack.PushFloat(f)
}
// Convert double to int
type D2I struct{ base.NoOperandsInstruction }
func (self *D2I) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
d := stack.PopDouble()
i := int32(d)
stack.PushInt(i)
}
// Convert double to long
type D2L struct{ base.NoOperandsInstruction }
func (self *D2L) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
d := stack.PopDouble()
l := int64(d)
stack.PushLong(l)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/conversions/d2x.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 206
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Shift left int
type ISHL struct{ base.NoOperandsInstruction }
func (self *ISHL) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
s := uint32(v2) & 0x1f
result := v1 << s
stack.PushInt(result)
}
// Arithmetic shift right int
type ISHR struct{ base.NoOperandsInstruction }
func (self *ISHR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
s := uint32(v2) & 0x1f
result := v1 >> s
stack.PushInt(result)
}
// Logical shift right int
type IUSHR struct{ base.NoOperandsInstruction }
func (self *IUSHR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
s := uint32(v2) & 0x1f
result := int32(uint32(v1) >> s)
stack.PushInt(result)
}
// Shift left long
type LSHL struct{ base.NoOperandsInstruction }
func (self *LSHL) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopLong()
s := uint32(v2) & 0x3f
result := v1 << s
stack.PushLong(result)
}
// Arithmetic shift right long
type LSHR struct{ base.NoOperandsInstruction }
func (self *LSHR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopLong()
s := uint32(v2) & 0x3f
result := v1 >> s
stack.PushLong(result)
}
// Logical shift right long
type LUSHR struct{ base.NoOperandsInstruction }
func (self *LUSHR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopLong()
s := uint32(v2) & 0x3f
result := int64(uint64(v1) >> s)
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/sh.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 526
|
```go
package extended
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Branch if reference is null
type IFNULL struct{ base.BranchInstruction }
func (self *IFNULL) Execute(frame *rtda.Frame) {
ref := frame.OperandStack().PopRef()
if ref == nil {
base.Branch(frame, self.Offset)
}
}
// Branch if reference not null
type IFNONNULL struct{ base.BranchInstruction }
func (self *IFNONNULL) Execute(frame *rtda.Frame) {
ref := frame.OperandStack().PopRef()
if ref != nil {
base.Branch(frame, self.Offset)
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/extended/ifnull.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 144
|
```go
package classfile
/*
CONSTANT_Class_info {
u1 tag;
u2 name_index;
}
*/
type ConstantClassInfo struct {
cp ConstantPool
nameIndex uint16
}
func (self *ConstantClassInfo) readInfo(reader *ClassReader) {
self.nameIndex = reader.readUint16()
}
func (self *ConstantClassInfo) Name() string {
return self.cp.getUtf8(self.nameIndex)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/cp_class.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 90
|
```go
package classfile
import "fmt"
type ConstantPool []ConstantInfo
func readConstantPool(reader *ClassReader) ConstantPool {
cpCount := int(reader.readUint16())
cp := make([]ConstantInfo, cpCount)
// The constant_pool table is indexed from 1 to constant_pool_count - 1.
for i := 1; i < cpCount; i++ {
cp[i] = readConstantInfo(reader, cp)
// path_to_url#jvms-4.4.5
// All 8-byte constants take up two entries in the constant_pool table of the class file.
// If a CONSTANT_Long_info or CONSTANT_Double_info structure is the item in the constant_pool
// table at index n, then the next usable item in the pool is located at index n+2.
// The constant_pool index n+1 must be valid but is considered unusable.
switch cp[i].(type) {
case *ConstantLongInfo, *ConstantDoubleInfo:
i++
}
}
return cp
}
func (self ConstantPool) getConstantInfo(index uint16) ConstantInfo {
if cpInfo := self[index]; cpInfo != nil {
return cpInfo
}
panic(fmt.Errorf("Invalid constant pool index: %v!", index))
}
func (self ConstantPool) getNameAndType(index uint16) (string, string) {
ntInfo := self.getConstantInfo(index).(*ConstantNameAndTypeInfo)
name := self.getUtf8(ntInfo.nameIndex)
_type := self.getUtf8(ntInfo.descriptorIndex)
return name, _type
}
func (self ConstantPool) getClassName(index uint16) string {
classInfo := self.getConstantInfo(index).(*ConstantClassInfo)
return self.getUtf8(classInfo.nameIndex)
}
func (self ConstantPool) getUtf8(index uint16) string {
utf8Info := self.getConstantInfo(index).(*ConstantUtf8Info)
return utf8Info.str
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/constant_pool.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 421
|
```go
package extended
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/instructions/loads"
import "jvmgo/ch11/instructions/math"
import "jvmgo/ch11/instructions/stores"
import "jvmgo/ch11/rtda"
// Extend local variable index by additional bytes
type WIDE struct {
modifiedInstruction base.Instruction
}
func (self *WIDE) FetchOperands(reader *base.BytecodeReader) {
opcode := reader.ReadUint8()
switch opcode {
case 0x15:
inst := &loads.ILOAD{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x16:
inst := &loads.LLOAD{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x17:
inst := &loads.FLOAD{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x18:
inst := &loads.DLOAD{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x19:
inst := &loads.ALOAD{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x36:
inst := &stores.ISTORE{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x37:
inst := &stores.LSTORE{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x38:
inst := &stores.FSTORE{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x39:
inst := &stores.DSTORE{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x3a:
inst := &stores.ASTORE{}
inst.Index = uint(reader.ReadUint16())
self.modifiedInstruction = inst
case 0x84:
inst := &math.IINC{}
inst.Index = uint(reader.ReadUint16())
inst.Const = int32(reader.ReadInt16())
self.modifiedInstruction = inst
case 0xa9: // ret
panic("Unsupported opcode: 0xa9!")
}
}
func (self *WIDE) Execute(frame *rtda.Frame) {
self.modifiedInstruction.Execute(frame)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/extended/wide.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 511
|
```go
package control
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
/*
lookupswitch
<0-3 byte pad>
defaultbyte1
defaultbyte2
defaultbyte3
defaultbyte4
npairs1
npairs2
npairs3
npairs4
match-offset pairs...
*/
// Access jump table by key match and jump
type LOOKUP_SWITCH struct {
defaultOffset int32
npairs int32
matchOffsets []int32
}
func (self *LOOKUP_SWITCH) FetchOperands(reader *base.BytecodeReader) {
reader.SkipPadding()
self.defaultOffset = reader.ReadInt32()
self.npairs = reader.ReadInt32()
self.matchOffsets = reader.ReadInt32s(self.npairs * 2)
}
func (self *LOOKUP_SWITCH) Execute(frame *rtda.Frame) {
key := frame.OperandStack().PopInt()
for i := int32(0); i < self.npairs*2; i += 2 {
if self.matchOffsets[i] == key {
offset := self.matchOffsets[i+1]
base.Branch(frame, int(offset))
return
}
}
base.Branch(frame, int(self.defaultOffset))
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/control/lookupswitch.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 259
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Create new object
type NEW struct{ base.Index16Instruction }
func (self *NEW) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
classRef := cp.GetConstant(self.Index).(*heap.ClassRef)
class := classRef.ResolvedClass()
if !class.InitStarted() {
frame.RevertNextPC()
base.InitClass(frame.Thread(), class)
return
}
if class.IsInterface() || class.IsAbstract() {
panic("java.lang.InstantiationError")
}
ref := class.NewObject()
frame.OperandStack().PushRef(ref)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/new.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 167
|
```go
package extended
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Branch always (wide index)
type GOTO_W struct {
offset int
}
func (self *GOTO_W) FetchOperands(reader *base.BytecodeReader) {
self.offset = int(reader.ReadInt32())
}
func (self *GOTO_W) Execute(frame *rtda.Frame) {
base.Branch(frame, self.offset)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/extended/goto_w.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 96
|
```go
package control
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
/*
tableswitch
<0-3 byte pad>
defaultbyte1
defaultbyte2
defaultbyte3
defaultbyte4
lowbyte1
lowbyte2
lowbyte3
lowbyte4
highbyte1
highbyte2
highbyte3
highbyte4
jump offsets...
*/
// Access jump table by index and jump
type TABLE_SWITCH struct {
defaultOffset int32
low int32
high int32
jumpOffsets []int32
}
func (self *TABLE_SWITCH) FetchOperands(reader *base.BytecodeReader) {
reader.SkipPadding()
self.defaultOffset = reader.ReadInt32()
self.low = reader.ReadInt32()
self.high = reader.ReadInt32()
jumpOffsetsCount := self.high - self.low + 1
self.jumpOffsets = reader.ReadInt32s(jumpOffsetsCount)
}
func (self *TABLE_SWITCH) Execute(frame *rtda.Frame) {
index := frame.OperandStack().PopInt()
var offset int
if index >= self.low && index <= self.high {
offset = int(self.jumpOffsets[index-self.low])
} else {
offset = int(self.defaultOffset)
}
base.Branch(frame, offset)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/control/tableswitch.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 274
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Increment local variable by constant
type IINC struct {
Index uint
Const int32
}
func (self *IINC) FetchOperands(reader *base.BytecodeReader) {
self.Index = uint(reader.ReadUint8())
self.Const = int32(reader.ReadInt8())
}
func (self *IINC) Execute(frame *rtda.Frame) {
localVars := frame.LocalVars()
val := localVars.GetInt(self.Index)
val += self.Const
localVars.SetInt(self.Index, val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/iinc.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 132
|
```go
package stack
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Swap the top two operand stack values
type SWAP struct{ base.NoOperandsInstruction }
func (self *SWAP) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot1 := stack.PopSlot()
slot2 := stack.PopSlot()
stack.PushSlot(slot1)
stack.PushSlot(slot2)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stack/swap.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 96
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Determine if object is of given type
type INSTANCE_OF struct{ base.Index16Instruction }
func (self *INSTANCE_OF) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
ref := stack.PopRef()
if ref == nil {
stack.PushInt(0)
return
}
cp := frame.Method().Class().ConstantPool()
classRef := cp.GetConstant(self.Index).(*heap.ClassRef)
class := classRef.ResolvedClass()
if ref.IsInstanceOf(class) {
stack.PushInt(1)
} else {
stack.PushInt(0)
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/instanceof.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 164
|
```go
package classfile
/*
attribute_info {
u2 attribute_name_index;
u4 attribute_length;
u1 info[attribute_length];
}
*/
type UnparsedAttribute struct {
name string
length uint32
info []byte
}
func (self *UnparsedAttribute) readInfo(reader *ClassReader) {
self.info = reader.readBytes(self.length)
}
func (self *UnparsedAttribute) Info() []byte {
return self.info
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_unparsed.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 96
|
```go
package stores
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Store into reference array
type AASTORE struct{ base.NoOperandsInstruction }
func (self *AASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
ref := stack.PopRef()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
refs := arrRef.Refs()
checkIndex(len(refs), index)
refs[index] = ref
}
// Store into byte or boolean array
type BASTORE struct{ base.NoOperandsInstruction }
func (self *BASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopInt()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
bytes := arrRef.Bytes()
checkIndex(len(bytes), index)
bytes[index] = int8(val)
}
// Store into char array
type CASTORE struct{ base.NoOperandsInstruction }
func (self *CASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopInt()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
chars := arrRef.Chars()
checkIndex(len(chars), index)
chars[index] = uint16(val)
}
// Store into double array
type DASTORE struct{ base.NoOperandsInstruction }
func (self *DASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopDouble()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
doubles := arrRef.Doubles()
checkIndex(len(doubles), index)
doubles[index] = float64(val)
}
// Store into float array
type FASTORE struct{ base.NoOperandsInstruction }
func (self *FASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopFloat()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
floats := arrRef.Floats()
checkIndex(len(floats), index)
floats[index] = float32(val)
}
// Store into int array
type IASTORE struct{ base.NoOperandsInstruction }
func (self *IASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopInt()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
ints := arrRef.Ints()
checkIndex(len(ints), index)
ints[index] = int32(val)
}
// Store into long array
type LASTORE struct{ base.NoOperandsInstruction }
func (self *LASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopLong()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
longs := arrRef.Longs()
checkIndex(len(longs), index)
longs[index] = int64(val)
}
// Store into short array
type SASTORE struct{ base.NoOperandsInstruction }
func (self *SASTORE) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopInt()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
shorts := arrRef.Shorts()
checkIndex(len(shorts), index)
shorts[index] = int16(val)
}
func checkNotNil(ref *heap.Object) {
if ref == nil {
panic("java.lang.NullPointerException")
}
}
func checkIndex(arrLen int, index int32) {
if index < 0 || index >= int32(arrLen) {
panic("ArrayIndexOutOfBoundsException")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stores/xastore.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 823
|
```go
package comparisons
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Branch if int comparison succeeds
type IF_ICMPEQ struct{ base.BranchInstruction }
func (self *IF_ICMPEQ) Execute(frame *rtda.Frame) {
if val1, val2 := _icmpPop(frame); val1 == val2 {
base.Branch(frame, self.Offset)
}
}
type IF_ICMPNE struct{ base.BranchInstruction }
func (self *IF_ICMPNE) Execute(frame *rtda.Frame) {
if val1, val2 := _icmpPop(frame); val1 != val2 {
base.Branch(frame, self.Offset)
}
}
type IF_ICMPLT struct{ base.BranchInstruction }
func (self *IF_ICMPLT) Execute(frame *rtda.Frame) {
if val1, val2 := _icmpPop(frame); val1 < val2 {
base.Branch(frame, self.Offset)
}
}
type IF_ICMPLE struct{ base.BranchInstruction }
func (self *IF_ICMPLE) Execute(frame *rtda.Frame) {
if val1, val2 := _icmpPop(frame); val1 <= val2 {
base.Branch(frame, self.Offset)
}
}
type IF_ICMPGT struct{ base.BranchInstruction }
func (self *IF_ICMPGT) Execute(frame *rtda.Frame) {
if val1, val2 := _icmpPop(frame); val1 > val2 {
base.Branch(frame, self.Offset)
}
}
type IF_ICMPGE struct{ base.BranchInstruction }
func (self *IF_ICMPGE) Execute(frame *rtda.Frame) {
if val1, val2 := _icmpPop(frame); val1 >= val2 {
base.Branch(frame, self.Offset)
}
}
func _icmpPop(frame *rtda.Frame) (val1, val2 int32) {
stack := frame.OperandStack()
val2 = stack.PopInt()
val1 = stack.PopInt()
return
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/comparisons/if_icmp.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 430
|
```go
package classfile
/*
SourceFile_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 sourcefile_index;
}
*/
type SourceFileAttribute struct {
cp ConstantPool
sourceFileIndex uint16
}
func (self *SourceFileAttribute) readInfo(reader *ClassReader) {
self.sourceFileIndex = reader.readUint16()
}
func (self *SourceFileAttribute) FileName() string {
return self.cp.getUtf8(self.sourceFileIndex)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_source_file.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 101
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Invoke instance method;
// special handling for superclass, private, and instance initialization method invocations
type INVOKE_SPECIAL struct{ base.Index16Instruction }
func (self *INVOKE_SPECIAL) Execute(frame *rtda.Frame) {
currentClass := frame.Method().Class()
cp := currentClass.ConstantPool()
methodRef := cp.GetConstant(self.Index).(*heap.MethodRef)
resolvedClass := methodRef.ResolvedClass()
resolvedMethod := methodRef.ResolvedMethod()
if resolvedMethod.Name() == "<init>" && resolvedMethod.Class() != resolvedClass {
panic("java.lang.NoSuchMethodError")
}
if resolvedMethod.IsStatic() {
panic("java.lang.IncompatibleClassChangeError")
}
ref := frame.OperandStack().GetRefFromTop(resolvedMethod.ArgSlotCount() - 1)
if ref == nil {
panic("java.lang.NullPointerException")
}
if resolvedMethod.IsProtected() &&
resolvedMethod.Class().IsSuperClassOf(currentClass) &&
resolvedMethod.Class().GetPackageName() != currentClass.GetPackageName() &&
ref.Class() != currentClass &&
!ref.Class().IsSubClassOf(currentClass) {
panic("java.lang.IllegalAccessError")
}
methodToBeInvoked := resolvedMethod
if currentClass.IsSuper() &&
resolvedClass.IsSuperClassOf(currentClass) &&
resolvedMethod.Name() != "<init>" {
methodToBeInvoked = heap.LookupMethodInClass(currentClass.SuperClass(),
methodRef.Name(), methodRef.Descriptor())
}
if methodToBeInvoked == nil || methodToBeInvoked.IsAbstract() {
panic("java.lang.AbstractMethodError")
}
base.InvokeMethod(frame, methodToBeInvoked)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/invokespecial.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 403
|
```go
package constants
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Do nothing
type NOP struct{ base.NoOperandsInstruction }
func (self *NOP) Execute(frame *rtda.Frame) {
// really do nothing
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/constants/nop.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 62
|
```shell
#!/bin/sh
set -ex
cd v1/code/java/jvmgo_java
# export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/
sh gradlew ch01:run --args ' -version' | grep -q "1.8.0"
sh gradlew ch02:run --args ' java.lang.Object' | grep -q "class data"
sh gradlew ch03:run --args ' java.lang.Object' | grep -q "this class: java/lang/Object"
# sh gradlew ch04:run --args ' java.lang.Object' 2>&1 | grep -q "100"
# sh gradlew ch05:run --args ' -cp ../java/example.jar jvmgo.book.ch05.GaussTest' 2>&1 | grep -q "5050"
# sh gradlew ch06:run --args ' -cp ../java/example.jar jvmgo.book.ch06.MyObject' | grep -q "32768"
# sh gradlew ch07:run --args ' -cp ../java/example.jar jvmgo.book.ch07.FibonacciTest' | grep -q "832040"
# sh gradlew ch08:run --args ' -cp ../java/example.jar jvmgo.book.ch01.HelloWorld' | grep -q "Hello, world!"
# sh gradlew ch08:run --args ' -cp ../java/example.jar jvmgo.book.ch08.PrintArgs foo bar' | tr -d '\n' | grep -q "foobar"
# sh gradlew ch09:run --args ' -cp ../java/example.jar jvmgo.book.ch09.GetClassTest' | grep -q "Ljava.lang.String;"
# sh gradlew ch09:run --args ' -cp ../java/example.jar jvmgo.book.ch09.StringTest' | tr -d '\n' | grep -q "truefalsetrue"
# sh gradlew ch09:run --args ' -cp ../java/example.jar jvmgo.book.ch09.ObjectTest' | tr -d '\n' | grep -q "falsetrue"
# sh gradlew ch09:run --args ' -cp ../java/example.jar jvmgo.book.ch09.CloneTest' | grep -q "3.14"
# sh gradlew ch09:run --args ' -cp ../java/example.jar jvmgo.book.ch09.BoxTest' | grep -q "1, 2, 3"
# sh gradlew ch10:run --args ' -cp ../java/example.jar jvmgo.book.ch10.ParseIntTest 123' | grep -q "123"
# sh gradlew ch10:run --args ' -cp ../java/example.jar jvmgo.book.ch10.ParseIntTest abc' 2>&1 | grep 'For input string: "abc"'
# sh gradlew ch10:run --args ' -cp ../java/example.jar jvmgo.book.ch10.ParseIntTest' 2>&1 | grep -q "at jvmgo"
# sh gradlew ch11:run --args ' -cp ../java/example.jar jvmgo.book.ch01.HelloWorld' | grep -q "Hello, world!"
echo OK
```
|
/content/code_sandbox/test_java.sh
|
shell
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 687
|
```go
package main
import "fmt"
import "strings"
import "jvmgo/ch11/classpath"
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
type JVM struct {
cmd *Cmd
classLoader *heap.ClassLoader
mainThread *rtda.Thread
}
func newJVM(cmd *Cmd) *JVM {
cp := classpath.Parse(cmd.XjreOption, cmd.cpOption)
classLoader := heap.NewClassLoader(cp, cmd.verboseClassFlag)
return &JVM{
cmd: cmd,
classLoader: classLoader,
mainThread: rtda.NewThread(),
}
}
func (self *JVM) start() {
self.initVM()
self.execMain()
}
func (self *JVM) initVM() {
vmClass := self.classLoader.LoadClass("sun/misc/VM")
base.InitClass(self.mainThread, vmClass)
interpret(self.mainThread, self.cmd.verboseInstFlag)
}
func (self *JVM) execMain() {
className := strings.Replace(self.cmd.class, ".", "/", -1)
mainClass := self.classLoader.LoadClass(className)
mainMethod := mainClass.GetMainMethod()
if mainMethod == nil {
fmt.Printf("Main method not found in class %s\n", self.cmd.class)
return
}
argsArr := self.createArgsArray()
frame := self.mainThread.NewFrame(mainMethod)
frame.LocalVars().SetRef(0, argsArr)
self.mainThread.PushFrame(frame)
interpret(self.mainThread, self.cmd.verboseInstFlag)
}
func (self *JVM) createArgsArray() *heap.Object {
stringClass := self.classLoader.LoadClass("java/lang/String")
argsLen := uint(len(self.cmd.args))
argsArr := stringClass.ArrayClass().NewArray(argsLen)
jArgs := argsArr.Refs()
for i, arg := range self.cmd.args {
jArgs[i] = heap.JString(self.classLoader, arg)
}
return argsArr
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/jvm.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 434
|
```go
package conversions
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Convert long to double
type L2D struct{ base.NoOperandsInstruction }
func (self *L2D) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
l := stack.PopLong()
d := float64(l)
stack.PushDouble(d)
}
// Convert long to float
type L2F struct{ base.NoOperandsInstruction }
func (self *L2F) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
l := stack.PopLong()
f := float32(l)
stack.PushFloat(f)
}
// Convert long to int
type L2I struct{ base.NoOperandsInstruction }
func (self *L2I) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
l := stack.PopLong()
i := int32(l)
stack.PushInt(i)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/conversions/l2x.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 206
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Fetch field from object
type GET_FIELD struct{ base.Index16Instruction }
func (self *GET_FIELD) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
fieldRef := cp.GetConstant(self.Index).(*heap.FieldRef)
field := fieldRef.ResolvedField()
if field.IsStatic() {
panic("java.lang.IncompatibleClassChangeError")
}
stack := frame.OperandStack()
ref := stack.PopRef()
if ref == nil {
panic("java.lang.NullPointerException")
}
descriptor := field.Descriptor()
slotId := field.SlotId()
slots := ref.Fields()
switch descriptor[0] {
case 'Z', 'B', 'C', 'S', 'I':
stack.PushInt(slots.GetInt(slotId))
case 'F':
stack.PushFloat(slots.GetFloat(slotId))
case 'J':
stack.PushLong(slots.GetLong(slotId))
case 'D':
stack.PushDouble(slots.GetDouble(slotId))
case 'L', '[':
stack.PushRef(slots.GetRef(slotId))
default:
// todo
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/getfield.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 275
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Add double
type DADD struct{ base.NoOperandsInstruction }
func (self *DADD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v1 := stack.PopDouble()
v2 := stack.PopDouble()
result := v1 + v2
stack.PushDouble(result)
}
// Add float
type FADD struct{ base.NoOperandsInstruction }
func (self *FADD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopFloat()
v1 := stack.PopFloat()
result := v1 + v2
stack.PushFloat(result)
}
// Add int
type IADD struct{ base.NoOperandsInstruction }
func (self *IADD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
result := v1 + v2
stack.PushInt(result)
}
// Add long
type LADD struct{ base.NoOperandsInstruction }
func (self *LADD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
result := v1 + v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/add.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 290
|
```go
package loads
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Load reference from local variable
type ALOAD struct{ base.Index8Instruction }
func (self *ALOAD) Execute(frame *rtda.Frame) {
_aload(frame, self.Index)
}
type ALOAD_0 struct{ base.NoOperandsInstruction }
func (self *ALOAD_0) Execute(frame *rtda.Frame) {
_aload(frame, 0)
}
type ALOAD_1 struct{ base.NoOperandsInstruction }
func (self *ALOAD_1) Execute(frame *rtda.Frame) {
_aload(frame, 1)
}
type ALOAD_2 struct{ base.NoOperandsInstruction }
func (self *ALOAD_2) Execute(frame *rtda.Frame) {
_aload(frame, 2)
}
type ALOAD_3 struct{ base.NoOperandsInstruction }
func (self *ALOAD_3) Execute(frame *rtda.Frame) {
_aload(frame, 3)
}
func _aload(frame *rtda.Frame, index uint) {
ref := frame.LocalVars().GetRef(index)
frame.OperandStack().PushRef(ref)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/loads/aload.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 262
|
```go
package constants
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Push null
type ACONST_NULL struct{ base.NoOperandsInstruction }
func (self *ACONST_NULL) Execute(frame *rtda.Frame) {
frame.OperandStack().PushRef(nil)
}
// Push double
type DCONST_0 struct{ base.NoOperandsInstruction }
func (self *DCONST_0) Execute(frame *rtda.Frame) {
frame.OperandStack().PushDouble(0.0)
}
type DCONST_1 struct{ base.NoOperandsInstruction }
func (self *DCONST_1) Execute(frame *rtda.Frame) {
frame.OperandStack().PushDouble(1.0)
}
// Push float
type FCONST_0 struct{ base.NoOperandsInstruction }
func (self *FCONST_0) Execute(frame *rtda.Frame) {
frame.OperandStack().PushFloat(0.0)
}
type FCONST_1 struct{ base.NoOperandsInstruction }
func (self *FCONST_1) Execute(frame *rtda.Frame) {
frame.OperandStack().PushFloat(1.0)
}
type FCONST_2 struct{ base.NoOperandsInstruction }
func (self *FCONST_2) Execute(frame *rtda.Frame) {
frame.OperandStack().PushFloat(2.0)
}
// Push int constant
type ICONST_M1 struct{ base.NoOperandsInstruction }
func (self *ICONST_M1) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(-1)
}
type ICONST_0 struct{ base.NoOperandsInstruction }
func (self *ICONST_0) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(0)
}
type ICONST_1 struct{ base.NoOperandsInstruction }
func (self *ICONST_1) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(1)
}
type ICONST_2 struct{ base.NoOperandsInstruction }
func (self *ICONST_2) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(2)
}
type ICONST_3 struct{ base.NoOperandsInstruction }
func (self *ICONST_3) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(3)
}
type ICONST_4 struct{ base.NoOperandsInstruction }
func (self *ICONST_4) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(4)
}
type ICONST_5 struct{ base.NoOperandsInstruction }
func (self *ICONST_5) Execute(frame *rtda.Frame) {
frame.OperandStack().PushInt(5)
}
// Push long constant
type LCONST_0 struct{ base.NoOperandsInstruction }
func (self *LCONST_0) Execute(frame *rtda.Frame) {
frame.OperandStack().PushLong(0)
}
type LCONST_1 struct{ base.NoOperandsInstruction }
func (self *LCONST_1) Execute(frame *rtda.Frame) {
frame.OperandStack().PushLong(1)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/constants/const.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 688
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Enter monitor for object
type MONITOR_ENTER struct{ base.NoOperandsInstruction }
// todo
func (self *MONITOR_ENTER) Execute(frame *rtda.Frame) {
ref := frame.OperandStack().PopRef()
if ref == nil {
panic("java.lang.NullPointerException")
}
}
// Exit monitor for object
type MONITOR_EXIT struct{ base.NoOperandsInstruction }
// todo
func (self *MONITOR_EXIT) Execute(frame *rtda.Frame) {
ref := frame.OperandStack().PopRef()
if ref == nil {
panic("java.lang.NullPointerException")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/monitor.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 154
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Create new multidimensional array
type MULTI_ANEW_ARRAY struct {
index uint16
dimensions uint8
}
func (self *MULTI_ANEW_ARRAY) FetchOperands(reader *base.BytecodeReader) {
self.index = reader.ReadUint16()
self.dimensions = reader.ReadUint8()
}
func (self *MULTI_ANEW_ARRAY) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
classRef := cp.GetConstant(uint(self.index)).(*heap.ClassRef)
arrClass := classRef.ResolvedClass()
stack := frame.OperandStack()
counts := popAndCheckCounts(stack, int(self.dimensions))
arr := newMultiDimensionalArray(counts, arrClass)
stack.PushRef(arr)
}
func popAndCheckCounts(stack *rtda.OperandStack, dimensions int) []int32 {
counts := make([]int32, dimensions)
for i := dimensions - 1; i >= 0; i-- {
counts[i] = stack.PopInt()
if counts[i] < 0 {
panic("java.lang.NegativeArraySizeException")
}
}
return counts
}
func newMultiDimensionalArray(counts []int32, arrClass *heap.Class) *heap.Object {
count := uint(counts[0])
arr := arrClass.NewArray(count)
if len(counts) > 1 {
refs := arr.Refs()
for i := range refs {
refs[i] = newMultiDimensionalArray(counts[1:], arrClass.ComponentClass())
}
}
return arr
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/multianewarray.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 373
|
```go
package classfile
/*
ConstantValue_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 constantvalue_index;
}
*/
type ConstantValueAttribute struct {
constantValueIndex uint16
}
func (self *ConstantValueAttribute) readInfo(reader *ClassReader) {
self.constantValueIndex = reader.readUint16()
}
func (self *ConstantValueAttribute) ConstantValueIndex() uint16 {
return self.constantValueIndex
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_constant_value.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 95
|
```go
package classfile
/*
EnclosingMethod_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 class_index;
u2 method_index;
}
*/
type EnclosingMethodAttribute struct {
cp ConstantPool
classIndex uint16
methodIndex uint16
}
func (self *EnclosingMethodAttribute) readInfo(reader *ClassReader) {
self.classIndex = reader.readUint16()
self.methodIndex = reader.readUint16()
}
func (self *EnclosingMethodAttribute) ClassName() string {
return self.cp.getClassName(self.classIndex)
}
func (self *EnclosingMethodAttribute) MethodNameAndDescriptor() (string, string) {
if self.methodIndex > 0 {
return self.cp.getNameAndType(self.methodIndex)
} else {
return "", ""
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_enclosing_method.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 170
|
```go
package loads
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Load long from local variable
type LLOAD struct{ base.Index8Instruction }
func (self *LLOAD) Execute(frame *rtda.Frame) {
_lload(frame, self.Index)
}
type LLOAD_0 struct{ base.NoOperandsInstruction }
func (self *LLOAD_0) Execute(frame *rtda.Frame) {
_lload(frame, 0)
}
type LLOAD_1 struct{ base.NoOperandsInstruction }
func (self *LLOAD_1) Execute(frame *rtda.Frame) {
_lload(frame, 1)
}
type LLOAD_2 struct{ base.NoOperandsInstruction }
func (self *LLOAD_2) Execute(frame *rtda.Frame) {
_lload(frame, 2)
}
type LLOAD_3 struct{ base.NoOperandsInstruction }
func (self *LLOAD_3) Execute(frame *rtda.Frame) {
_lload(frame, 3)
}
func _lload(frame *rtda.Frame, index uint) {
val := frame.LocalVars().GetLong(index)
frame.OperandStack().PushLong(val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/loads/lload.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 263
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Boolean OR int
type IOR struct{ base.NoOperandsInstruction }
func (self *IOR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
result := v1 | v2
stack.PushInt(result)
}
// Boolean OR long
type LOR struct{ base.NoOperandsInstruction }
func (self *LOR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
result := v1 | v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/or.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 159
|
```go
package loads
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Load double from local variable
type DLOAD struct{ base.Index8Instruction }
func (self *DLOAD) Execute(frame *rtda.Frame) {
_dload(frame, self.Index)
}
type DLOAD_0 struct{ base.NoOperandsInstruction }
func (self *DLOAD_0) Execute(frame *rtda.Frame) {
_dload(frame, 0)
}
type DLOAD_1 struct{ base.NoOperandsInstruction }
func (self *DLOAD_1) Execute(frame *rtda.Frame) {
_dload(frame, 1)
}
type DLOAD_2 struct{ base.NoOperandsInstruction }
func (self *DLOAD_2) Execute(frame *rtda.Frame) {
_dload(frame, 2)
}
type DLOAD_3 struct{ base.NoOperandsInstruction }
func (self *DLOAD_3) Execute(frame *rtda.Frame) {
_dload(frame, 3)
}
func _dload(frame *rtda.Frame, index uint) {
val := frame.LocalVars().GetDouble(index)
frame.OperandStack().PushDouble(val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/loads/dload.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 263
|
```go
package classfile
/*
Deprecated_attribute {
u2 attribute_name_index;
u4 attribute_length;
}
*/
type DeprecatedAttribute struct {
MarkerAttribute
}
/*
Synthetic_attribute {
u2 attribute_name_index;
u4 attribute_length;
}
*/
type SyntheticAttribute struct {
MarkerAttribute
}
type MarkerAttribute struct{}
func (self *MarkerAttribute) readInfo(reader *ClassReader) {
// read nothing
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_markers.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 90
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Invoke interface method
type INVOKE_INTERFACE struct {
index uint
// count uint8
// zero uint8
}
func (self *INVOKE_INTERFACE) FetchOperands(reader *base.BytecodeReader) {
self.index = uint(reader.ReadUint16())
reader.ReadUint8() // count
reader.ReadUint8() // must be 0
}
func (self *INVOKE_INTERFACE) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
methodRef := cp.GetConstant(self.index).(*heap.InterfaceMethodRef)
resolvedMethod := methodRef.ResolvedInterfaceMethod()
if resolvedMethod.IsStatic() || resolvedMethod.IsPrivate() {
panic("java.lang.IncompatibleClassChangeError")
}
ref := frame.OperandStack().GetRefFromTop(resolvedMethod.ArgSlotCount() - 1)
if ref == nil {
panic("java.lang.NullPointerException") // todo
}
if !ref.Class().IsImplements(methodRef.ResolvedClass()) {
panic("java.lang.IncompatibleClassChangeError")
}
methodToBeInvoked := heap.LookupMethodInClass(ref.Class(),
methodRef.Name(), methodRef.Descriptor())
if methodToBeInvoked == nil || methodToBeInvoked.IsAbstract() {
panic("java.lang.AbstractMethodError")
}
if !methodToBeInvoked.IsPublic() {
panic("java.lang.IllegalAccessError")
}
base.InvokeMethod(frame, methodToBeInvoked)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/invokeinterface.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 349
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Negate double
type DNEG struct{ base.NoOperandsInstruction }
func (self *DNEG) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopDouble()
stack.PushDouble(-val)
}
// Negate float
type FNEG struct{ base.NoOperandsInstruction }
func (self *FNEG) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopFloat()
stack.PushFloat(-val)
}
// Negate int
type INEG struct{ base.NoOperandsInstruction }
func (self *INEG) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopInt()
stack.PushInt(-val)
}
// Negate long
type LNEG struct{ base.NoOperandsInstruction }
func (self *LNEG) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
val := stack.PopLong()
stack.PushLong(-val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/neg.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 234
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Divide double
type DDIV struct{ base.NoOperandsInstruction }
func (self *DDIV) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopDouble()
v1 := stack.PopDouble()
result := v1 / v2
stack.PushDouble(result)
}
// Divide float
type FDIV struct{ base.NoOperandsInstruction }
func (self *FDIV) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopFloat()
v1 := stack.PopFloat()
result := v1 / v2
stack.PushFloat(result)
}
// Divide int
type IDIV struct{ base.NoOperandsInstruction }
func (self *IDIV) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
if v2 == 0 {
panic("java.lang.ArithmeticException: / by zero")
}
result := v1 / v2
stack.PushInt(result)
}
// Divide long
type LDIV struct{ base.NoOperandsInstruction }
func (self *LDIV) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
if v2 == 0 {
panic("java.lang.ArithmeticException: / by zero")
}
result := v1 / v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/div.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 334
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
const (
//Array Type atype
AT_BOOLEAN = 4
AT_CHAR = 5
AT_FLOAT = 6
AT_DOUBLE = 7
AT_BYTE = 8
AT_SHORT = 9
AT_INT = 10
AT_LONG = 11
)
// Create new array
type NEW_ARRAY struct {
atype uint8
}
func (self *NEW_ARRAY) FetchOperands(reader *base.BytecodeReader) {
self.atype = reader.ReadUint8()
}
func (self *NEW_ARRAY) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
count := stack.PopInt()
if count < 0 {
panic("java.lang.NegativeArraySizeException")
}
classLoader := frame.Method().Class().Loader()
arrClass := getPrimitiveArrayClass(classLoader, self.atype)
arr := arrClass.NewArray(uint(count))
stack.PushRef(arr)
}
func getPrimitiveArrayClass(loader *heap.ClassLoader, atype uint8) *heap.Class {
switch atype {
case AT_BOOLEAN:
return loader.LoadClass("[Z")
case AT_BYTE:
return loader.LoadClass("[B")
case AT_CHAR:
return loader.LoadClass("[C")
case AT_SHORT:
return loader.LoadClass("[S")
case AT_INT:
return loader.LoadClass("[I")
case AT_LONG:
return loader.LoadClass("[J")
case AT_FLOAT:
return loader.LoadClass("[F")
case AT_DOUBLE:
return loader.LoadClass("[D")
default:
panic("Invalid atype!")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/newarray.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 368
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Boolean XOR int
type IXOR struct{ base.NoOperandsInstruction }
func (self *IXOR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v1 := stack.PopInt()
v2 := stack.PopInt()
result := v1 ^ v2
stack.PushInt(result)
}
// Boolean XOR long
type LXOR struct{ base.NoOperandsInstruction }
func (self *LXOR) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v1 := stack.PopLong()
v2 := stack.PopLong()
result := v1 ^ v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/xor.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 161
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Subtract double
type DSUB struct{ base.NoOperandsInstruction }
func (self *DSUB) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopDouble()
v1 := stack.PopDouble()
result := v1 - v2
stack.PushDouble(result)
}
// Subtract float
type FSUB struct{ base.NoOperandsInstruction }
func (self *FSUB) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopFloat()
v1 := stack.PopFloat()
result := v1 - v2
stack.PushFloat(result)
}
// Subtract int
type ISUB struct{ base.NoOperandsInstruction }
func (self *ISUB) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
result := v1 - v2
stack.PushInt(result)
}
// Subtract long
type LSUB struct{ base.NoOperandsInstruction }
func (self *LSUB) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
result := v1 - v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/sub.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 290
|
```go
package constants
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Push item from run-time constant pool
type LDC struct{ base.Index8Instruction }
func (self *LDC) Execute(frame *rtda.Frame) {
_ldc(frame, self.Index)
}
// Push item from run-time constant pool (wide index)
type LDC_W struct{ base.Index16Instruction }
func (self *LDC_W) Execute(frame *rtda.Frame) {
_ldc(frame, self.Index)
}
func _ldc(frame *rtda.Frame, index uint) {
stack := frame.OperandStack()
class := frame.Method().Class()
c := class.ConstantPool().GetConstant(index)
switch c.(type) {
case int32:
stack.PushInt(c.(int32))
case float32:
stack.PushFloat(c.(float32))
case string:
internedStr := heap.JString(class.Loader(), c.(string))
stack.PushRef(internedStr)
case *heap.ClassRef:
classRef := c.(*heap.ClassRef)
classObj := classRef.ResolvedClass().JClass()
stack.PushRef(classObj)
// case MethodType, MethodHandle
default:
panic("todo: ldc!")
}
}
// Push long or double from run-time constant pool (wide index)
type LDC2_W struct{ base.Index16Instruction }
func (self *LDC2_W) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
cp := frame.Method().Class().ConstantPool()
c := cp.GetConstant(self.Index)
switch c.(type) {
case int64:
stack.PushLong(c.(int64))
case float64:
stack.PushDouble(c.(float64))
default:
panic("java.lang.ClassFormatError")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/constants/ldc.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 403
|
```go
package comparisons
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Branch if reference comparison succeeds
type IF_ACMPEQ struct{ base.BranchInstruction }
func (self *IF_ACMPEQ) Execute(frame *rtda.Frame) {
if _acmp(frame) {
base.Branch(frame, self.Offset)
}
}
type IF_ACMPNE struct{ base.BranchInstruction }
func (self *IF_ACMPNE) Execute(frame *rtda.Frame) {
if !_acmp(frame) {
base.Branch(frame, self.Offset)
}
}
func _acmp(frame *rtda.Frame) bool {
stack := frame.OperandStack()
ref2 := stack.PopRef()
ref1 := stack.PopRef()
return ref1 == ref2 // todo
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/comparisons/if_acmp.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 173
|
```go
package control
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Branch always
type GOTO struct{ base.BranchInstruction }
func (self *GOTO) Execute(frame *rtda.Frame) {
base.Branch(frame, self.Offset)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/control/goto.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 63
|
```go
package classfile
// Constant pool tags
const (
CONSTANT_Class = 7
CONSTANT_Fieldref = 9
CONSTANT_Methodref = 10
CONSTANT_InterfaceMethodref = 11
CONSTANT_String = 8
CONSTANT_Integer = 3
CONSTANT_Float = 4
CONSTANT_Long = 5
CONSTANT_Double = 6
CONSTANT_NameAndType = 12
CONSTANT_Utf8 = 1
CONSTANT_MethodHandle = 15
CONSTANT_MethodType = 16
CONSTANT_InvokeDynamic = 18
)
/*
cp_info {
u1 tag;
u1 info[];
}
*/
type ConstantInfo interface {
readInfo(reader *ClassReader)
}
func readConstantInfo(reader *ClassReader, cp ConstantPool) ConstantInfo {
tag := reader.readUint8()
c := newConstantInfo(tag, cp)
c.readInfo(reader)
return c
}
// todo ugly code
func newConstantInfo(tag uint8, cp ConstantPool) ConstantInfo {
switch tag {
case CONSTANT_Integer:
return &ConstantIntegerInfo{}
case CONSTANT_Float:
return &ConstantFloatInfo{}
case CONSTANT_Long:
return &ConstantLongInfo{}
case CONSTANT_Double:
return &ConstantDoubleInfo{}
case CONSTANT_Utf8:
return &ConstantUtf8Info{}
case CONSTANT_String:
return &ConstantStringInfo{cp: cp}
case CONSTANT_Class:
return &ConstantClassInfo{cp: cp}
case CONSTANT_Fieldref:
return &ConstantFieldrefInfo{ConstantMemberrefInfo{cp: cp}}
case CONSTANT_Methodref:
return &ConstantMethodrefInfo{ConstantMemberrefInfo{cp: cp}}
case CONSTANT_InterfaceMethodref:
return &ConstantInterfaceMethodrefInfo{ConstantMemberrefInfo{cp: cp}}
case CONSTANT_NameAndType:
return &ConstantNameAndTypeInfo{}
case CONSTANT_MethodType:
return &ConstantMethodTypeInfo{}
case CONSTANT_MethodHandle:
return &ConstantMethodHandleInfo{}
case CONSTANT_InvokeDynamic:
return &ConstantInvokeDynamicInfo{}
default:
panic("java.lang.ClassFormatError: constant pool tag!")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/constant_info.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 468
|
```go
package control
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Return void from method
type RETURN struct{ base.NoOperandsInstruction }
func (self *RETURN) Execute(frame *rtda.Frame) {
frame.Thread().PopFrame()
}
// Return reference from method
type ARETURN struct{ base.NoOperandsInstruction }
func (self *ARETURN) Execute(frame *rtda.Frame) {
thread := frame.Thread()
currentFrame := thread.PopFrame()
invokerFrame := thread.TopFrame()
ref := currentFrame.OperandStack().PopRef()
invokerFrame.OperandStack().PushRef(ref)
}
// Return double from method
type DRETURN struct{ base.NoOperandsInstruction }
func (self *DRETURN) Execute(frame *rtda.Frame) {
thread := frame.Thread()
currentFrame := thread.PopFrame()
invokerFrame := thread.TopFrame()
val := currentFrame.OperandStack().PopDouble()
invokerFrame.OperandStack().PushDouble(val)
}
// Return float from method
type FRETURN struct{ base.NoOperandsInstruction }
func (self *FRETURN) Execute(frame *rtda.Frame) {
thread := frame.Thread()
currentFrame := thread.PopFrame()
invokerFrame := thread.TopFrame()
val := currentFrame.OperandStack().PopFloat()
invokerFrame.OperandStack().PushFloat(val)
}
// Return int from method
type IRETURN struct{ base.NoOperandsInstruction }
func (self *IRETURN) Execute(frame *rtda.Frame) {
thread := frame.Thread()
currentFrame := thread.PopFrame()
invokerFrame := thread.TopFrame()
val := currentFrame.OperandStack().PopInt()
invokerFrame.OperandStack().PushInt(val)
}
// Return double from method
type LRETURN struct{ base.NoOperandsInstruction }
func (self *LRETURN) Execute(frame *rtda.Frame) {
thread := frame.Thread()
currentFrame := thread.PopFrame()
invokerFrame := thread.TopFrame()
val := currentFrame.OperandStack().PopLong()
invokerFrame.OperandStack().PushLong(val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/control/return.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 454
|
```go
package base
import "fmt"
import "strings"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
func InvokeMethod(invokerFrame *rtda.Frame, method *heap.Method) {
//_logInvoke(callerFrame.Thread().StackDepth(), method)
thread := invokerFrame.Thread()
newFrame := thread.NewFrame(method)
thread.PushFrame(newFrame)
argSlotCount := int(method.ArgSlotCount())
if argSlotCount > 0 {
for i := argSlotCount - 1; i >= 0; i-- {
slot := invokerFrame.OperandStack().PopSlot()
newFrame.LocalVars().SetSlot(uint(i), slot)
}
}
}
func _logInvoke(stackSize uint, method *heap.Method) {
space := strings.Repeat(" ", int(stackSize))
className := method.Class().Name()
methodName := method.Name()
fmt.Printf("[method]%v %v.%v()\n", space, className, methodName)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/base/method_invoke_logic.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 218
|
```go
package classfile
/*
BootstrapMethods_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 num_bootstrap_methods;
{ u2 bootstrap_method_ref;
u2 num_bootstrap_arguments;
u2 bootstrap_arguments[num_bootstrap_arguments];
} bootstrap_methods[num_bootstrap_methods];
}
*/
type BootstrapMethodsAttribute struct {
bootstrapMethods []*BootstrapMethod
}
func (self *BootstrapMethodsAttribute) readInfo(reader *ClassReader) {
numBootstrapMethods := reader.readUint16()
self.bootstrapMethods = make([]*BootstrapMethod, numBootstrapMethods)
for i := range self.bootstrapMethods {
self.bootstrapMethods[i] = &BootstrapMethod{
bootstrapMethodRef: reader.readUint16(),
bootstrapArguments: reader.readUint16s(),
}
}
}
type BootstrapMethod struct {
bootstrapMethodRef uint16
bootstrapArguments []uint16
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_bootstrap_methods.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 184
|
```go
package math
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Multiply double
type DMUL struct{ base.NoOperandsInstruction }
func (self *DMUL) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopDouble()
v1 := stack.PopDouble()
result := v1 * v2
stack.PushDouble(result)
}
// Multiply float
type FMUL struct{ base.NoOperandsInstruction }
func (self *FMUL) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopFloat()
v1 := stack.PopFloat()
result := v1 * v2
stack.PushFloat(result)
}
// Multiply int
type IMUL struct{ base.NoOperandsInstruction }
func (self *IMUL) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
result := v1 * v2
stack.PushInt(result)
}
// Multiply long
type LMUL struct{ base.NoOperandsInstruction }
func (self *LMUL) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
result := v1 * v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/mul.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 290
|
```go
package comparisons
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Compare double
type DCMPG struct{ base.NoOperandsInstruction }
func (self *DCMPG) Execute(frame *rtda.Frame) {
_dcmp(frame, true)
}
type DCMPL struct{ base.NoOperandsInstruction }
func (self *DCMPL) Execute(frame *rtda.Frame) {
_dcmp(frame, false)
}
func _dcmp(frame *rtda.Frame, gFlag bool) {
stack := frame.OperandStack()
v2 := stack.PopDouble()
v1 := stack.PopDouble()
if v1 > v2 {
stack.PushInt(1)
} else if v1 == v2 {
stack.PushInt(0)
} else if v1 < v2 {
stack.PushInt(-1)
} else if gFlag {
stack.PushInt(1)
} else {
stack.PushInt(-1)
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/comparisons/dcmp.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 217
|
```shell
#!/bin/sh
set -ex
cd v1/code/go/src/jvmgo
# export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home/
go run jvmgo/ch01 -version | grep -q "version 0.0.1"
go run jvmgo/ch02 java.lang.Object | grep -q "class data"
go run jvmgo/ch03 java.lang.Object | grep -q "this class: java/lang/Object"
go run jvmgo/ch04 java.lang.Object 2>&1 | grep -q "100"
go run jvmgo/ch05 -cp ../../../java/example.jar jvmgo.book.ch05.GaussTest 2>&1 | grep -q "5050"
go run jvmgo/ch06 -cp ../../../java/example.jar jvmgo.book.ch06.MyObject | grep -q "32768"
go run jvmgo/ch07 -cp ../../../java/example.jar jvmgo.book.ch07.FibonacciTest | grep -q "832040"
go run jvmgo/ch08 -cp ../../../java/example.jar jvmgo.book.ch01.HelloWorld | grep -q "Hello, world!"
go run jvmgo/ch08 -cp ../../../java/example.jar jvmgo.book.ch08.PrintArgs foo bar | tr -d '\n' | grep -q "foobar"
go run jvmgo/ch09 -cp ../../../java/example.jar jvmgo.book.ch09.GetClassTest | grep -q "Ljava.lang.String;"
go run jvmgo/ch09 -cp ../../../java/example.jar jvmgo.book.ch09.StringTest | tr -d '\n' | grep -q "truefalsetrue"
go run jvmgo/ch09 -cp ../../../java/example.jar jvmgo.book.ch09.ObjectTest | tr -d '\n' | grep -q "falsetrue"
go run jvmgo/ch09 -cp ../../../java/example.jar jvmgo.book.ch09.CloneTest | grep -q "3.14"
go run jvmgo/ch09 -cp ../../../java/example.jar jvmgo.book.ch09.BoxTest | grep -q "1, 2, 3"
go run jvmgo/ch10 -cp ../../../java/example.jar jvmgo.book.ch10.ParseIntTest 123 | grep -q "123"
go run jvmgo/ch10 -cp ../../../java/example.jar jvmgo.book.ch10.ParseIntTest abc 2>&1 | grep 'For input string: "abc"'
go run jvmgo/ch10 -cp ../../../java/example.jar jvmgo.book.ch10.ParseIntTest 2>&1 | grep -q "at jvmgo"
go run jvmgo/ch11 -cp ../../../java/example.jar jvmgo.book.ch01.HelloWorld | grep -q "Hello, world!"
echo OK
```
|
/content/code_sandbox/test.sh
|
shell
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 604
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Get length of array
type ARRAY_LENGTH struct{ base.NoOperandsInstruction }
func (self *ARRAY_LENGTH) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
arrRef := stack.PopRef()
if arrRef == nil {
panic("java.lang.NullPointerException")
}
arrLen := arrRef.ArrayLength()
stack.PushInt(arrLen)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/arraylength.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 104
|
```go
package loads
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Load int from local variable
type ILOAD struct{ base.Index8Instruction }
func (self *ILOAD) Execute(frame *rtda.Frame) {
_iload(frame, self.Index)
}
type ILOAD_0 struct{ base.NoOperandsInstruction }
func (self *ILOAD_0) Execute(frame *rtda.Frame) {
_iload(frame, 0)
}
type ILOAD_1 struct{ base.NoOperandsInstruction }
func (self *ILOAD_1) Execute(frame *rtda.Frame) {
_iload(frame, 1)
}
type ILOAD_2 struct{ base.NoOperandsInstruction }
func (self *ILOAD_2) Execute(frame *rtda.Frame) {
_iload(frame, 2)
}
type ILOAD_3 struct{ base.NoOperandsInstruction }
func (self *ILOAD_3) Execute(frame *rtda.Frame) {
_iload(frame, 3)
}
func _iload(frame *rtda.Frame, index uint) {
val := frame.LocalVars().GetInt(index)
frame.OperandStack().PushInt(val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/loads/iload.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 262
|
```go
package base
type BytecodeReader struct {
code []byte // bytecodes
pc int
}
func (self *BytecodeReader) Reset(code []byte, pc int) {
self.code = code
self.pc = pc
}
func (self *BytecodeReader) PC() int {
return self.pc
}
func (self *BytecodeReader) ReadInt8() int8 {
return int8(self.ReadUint8())
}
func (self *BytecodeReader) ReadUint8() uint8 {
i := self.code[self.pc]
self.pc++
return i
}
func (self *BytecodeReader) ReadInt16() int16 {
return int16(self.ReadUint16())
}
func (self *BytecodeReader) ReadUint16() uint16 {
byte1 := uint16(self.ReadUint8())
byte2 := uint16(self.ReadUint8())
return (byte1 << 8) | byte2
}
func (self *BytecodeReader) ReadInt32() int32 {
byte1 := int32(self.ReadUint8())
byte2 := int32(self.ReadUint8())
byte3 := int32(self.ReadUint8())
byte4 := int32(self.ReadUint8())
return (byte1 << 24) | (byte2 << 16) | (byte3 << 8) | byte4
}
// used by lookupswitch and tableswitch
func (self *BytecodeReader) ReadInt32s(n int32) []int32 {
ints := make([]int32, n)
for i := range ints {
ints[i] = self.ReadInt32()
}
return ints
}
// used by lookupswitch and tableswitch
func (self *BytecodeReader) SkipPadding() {
for self.pc%4 != 0 {
self.ReadUint8()
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/base/bytecode_reader.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 376
|
```go
package stores
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Store float into local variable
type FSTORE struct{ base.Index8Instruction }
func (self *FSTORE) Execute(frame *rtda.Frame) {
_fstore(frame, uint(self.Index))
}
type FSTORE_0 struct{ base.NoOperandsInstruction }
func (self *FSTORE_0) Execute(frame *rtda.Frame) {
_fstore(frame, 0)
}
type FSTORE_1 struct{ base.NoOperandsInstruction }
func (self *FSTORE_1) Execute(frame *rtda.Frame) {
_fstore(frame, 1)
}
type FSTORE_2 struct{ base.NoOperandsInstruction }
func (self *FSTORE_2) Execute(frame *rtda.Frame) {
_fstore(frame, 2)
}
type FSTORE_3 struct{ base.NoOperandsInstruction }
func (self *FSTORE_3) Execute(frame *rtda.Frame) {
_fstore(frame, 3)
}
func _fstore(frame *rtda.Frame, index uint) {
val := frame.OperandStack().PopFloat()
frame.LocalVars().SetFloat(index, val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stores/fstore.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 265
|
```go
package classfile
import "fmt"
/*
ClassFile {
u4 magic;
u2 minor_version;
u2 major_version;
u2 constant_pool_count;
cp_info constant_pool[constant_pool_count-1];
u2 access_flags;
u2 this_class;
u2 super_class;
u2 interfaces_count;
u2 interfaces[interfaces_count];
u2 fields_count;
field_info fields[fields_count];
u2 methods_count;
method_info methods[methods_count];
u2 attributes_count;
attribute_info attributes[attributes_count];
}
*/
type ClassFile struct {
//magic uint32
minorVersion uint16
majorVersion uint16
constantPool ConstantPool
accessFlags uint16
thisClass uint16
superClass uint16
interfaces []uint16
fields []*MemberInfo
methods []*MemberInfo
attributes []AttributeInfo
}
func Parse(classData []byte) (cf *ClassFile, err error) {
defer func() {
if r := recover(); r != nil {
var ok bool
err, ok = r.(error)
if !ok {
err = fmt.Errorf("%v", r)
}
}
}()
cr := &ClassReader{classData}
cf = &ClassFile{}
cf.read(cr)
return
}
func (self *ClassFile) read(reader *ClassReader) {
self.readAndCheckMagic(reader)
self.readAndCheckVersion(reader)
self.constantPool = readConstantPool(reader)
self.accessFlags = reader.readUint16()
self.thisClass = reader.readUint16()
self.superClass = reader.readUint16()
self.interfaces = reader.readUint16s()
self.fields = readMembers(reader, self.constantPool)
self.methods = readMembers(reader, self.constantPool)
self.attributes = readAttributes(reader, self.constantPool)
}
func (self *ClassFile) readAndCheckMagic(reader *ClassReader) {
magic := reader.readUint32()
if magic != 0xCAFEBABE {
panic("java.lang.ClassFormatError: magic!")
}
}
func (self *ClassFile) readAndCheckVersion(reader *ClassReader) {
self.minorVersion = reader.readUint16()
self.majorVersion = reader.readUint16()
switch self.majorVersion {
case 45:
return
case 46, 47, 48, 49, 50, 51, 52:
if self.minorVersion == 0 {
return
}
}
panic("java.lang.UnsupportedClassVersionError!")
}
func (self *ClassFile) MinorVersion() uint16 {
return self.minorVersion
}
func (self *ClassFile) MajorVersion() uint16 {
return self.majorVersion
}
func (self *ClassFile) ConstantPool() ConstantPool {
return self.constantPool
}
func (self *ClassFile) AccessFlags() uint16 {
return self.accessFlags
}
func (self *ClassFile) Fields() []*MemberInfo {
return self.fields
}
func (self *ClassFile) Methods() []*MemberInfo {
return self.methods
}
func (self *ClassFile) ClassName() string {
return self.constantPool.getClassName(self.thisClass)
}
func (self *ClassFile) SuperClassName() string {
if self.superClass > 0 {
return self.constantPool.getClassName(self.superClass)
}
return ""
}
func (self *ClassFile) InterfaceNames() []string {
interfaceNames := make([]string, len(self.interfaces))
for i, cpIndex := range self.interfaces {
interfaceNames[i] = self.constantPool.getClassName(cpIndex)
}
return interfaceNames
}
func (self *ClassFile) SourceFileAttribute() *SourceFileAttribute {
for _, attrInfo := range self.attributes {
switch attrInfo.(type) {
case *SourceFileAttribute:
return attrInfo.(*SourceFileAttribute)
}
}
return nil
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/class_file.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 845
|
```go
package classfile
import "math"
/*
CONSTANT_Integer_info {
u1 tag;
u4 bytes;
}
*/
type ConstantIntegerInfo struct {
val int32
}
func (self *ConstantIntegerInfo) readInfo(reader *ClassReader) {
bytes := reader.readUint32()
self.val = int32(bytes)
}
func (self *ConstantIntegerInfo) Value() int32 {
return self.val
}
/*
CONSTANT_Float_info {
u1 tag;
u4 bytes;
}
*/
type ConstantFloatInfo struct {
val float32
}
func (self *ConstantFloatInfo) readInfo(reader *ClassReader) {
bytes := reader.readUint32()
self.val = math.Float32frombits(bytes)
}
func (self *ConstantFloatInfo) Value() float32 {
return self.val
}
/*
CONSTANT_Long_info {
u1 tag;
u4 high_bytes;
u4 low_bytes;
}
*/
type ConstantLongInfo struct {
val int64
}
func (self *ConstantLongInfo) readInfo(reader *ClassReader) {
bytes := reader.readUint64()
self.val = int64(bytes)
}
func (self *ConstantLongInfo) Value() int64 {
return self.val
}
/*
CONSTANT_Double_info {
u1 tag;
u4 high_bytes;
u4 low_bytes;
}
*/
type ConstantDoubleInfo struct {
val float64
}
func (self *ConstantDoubleInfo) readInfo(reader *ClassReader) {
bytes := reader.readUint64()
self.val = math.Float64frombits(bytes)
}
func (self *ConstantDoubleInfo) Value() float64 {
return self.val
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/cp_numeric.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 341
|
```go
package stores
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Store double into local variable
type DSTORE struct{ base.Index8Instruction }
func (self *DSTORE) Execute(frame *rtda.Frame) {
_dstore(frame, uint(self.Index))
}
type DSTORE_0 struct{ base.NoOperandsInstruction }
func (self *DSTORE_0) Execute(frame *rtda.Frame) {
_dstore(frame, 0)
}
type DSTORE_1 struct{ base.NoOperandsInstruction }
func (self *DSTORE_1) Execute(frame *rtda.Frame) {
_dstore(frame, 1)
}
type DSTORE_2 struct{ base.NoOperandsInstruction }
func (self *DSTORE_2) Execute(frame *rtda.Frame) {
_dstore(frame, 2)
}
type DSTORE_3 struct{ base.NoOperandsInstruction }
func (self *DSTORE_3) Execute(frame *rtda.Frame) {
_dstore(frame, 3)
}
func _dstore(frame *rtda.Frame, index uint) {
val := frame.OperandStack().PopDouble()
frame.LocalVars().SetDouble(index, val)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stores/dstore.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 265
|
```go
package stores
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Store reference into local variable
type ASTORE struct{ base.Index8Instruction }
func (self *ASTORE) Execute(frame *rtda.Frame) {
_astore(frame, uint(self.Index))
}
type ASTORE_0 struct{ base.NoOperandsInstruction }
func (self *ASTORE_0) Execute(frame *rtda.Frame) {
_astore(frame, 0)
}
type ASTORE_1 struct{ base.NoOperandsInstruction }
func (self *ASTORE_1) Execute(frame *rtda.Frame) {
_astore(frame, 1)
}
type ASTORE_2 struct{ base.NoOperandsInstruction }
func (self *ASTORE_2) Execute(frame *rtda.Frame) {
_astore(frame, 2)
}
type ASTORE_3 struct{ base.NoOperandsInstruction }
func (self *ASTORE_3) Execute(frame *rtda.Frame) {
_astore(frame, 3)
}
func _astore(frame *rtda.Frame, index uint) {
ref := frame.OperandStack().PopRef()
frame.LocalVars().SetRef(index, ref)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stores/astore.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 265
|
```go
package classfile
import "fmt"
import "unicode/utf16"
/*
CONSTANT_Utf8_info {
u1 tag;
u2 length;
u1 bytes[length];
}
*/
type ConstantUtf8Info struct {
str string
}
func (self *ConstantUtf8Info) readInfo(reader *ClassReader) {
length := uint32(reader.readUint16())
bytes := reader.readBytes(length)
self.str = decodeMUTF8(bytes)
}
func (self *ConstantUtf8Info) Str() string {
return self.str
}
/*
func decodeMUTF8(bytes []byte) string {
return string(bytes) // not correct!
}
*/
// mutf8 -> utf16 -> utf32 -> string
// see java.io.DataInputStream.readUTF(DataInput)
func decodeMUTF8(bytearr []byte) string {
utflen := len(bytearr)
chararr := make([]uint16, utflen)
var c, char2, char3 uint16
count := 0
chararr_count := 0
for count < utflen {
c = uint16(bytearr[count])
if c > 127 {
break
}
count++
chararr[chararr_count] = c
chararr_count++
}
for count < utflen {
c = uint16(bytearr[count])
switch c >> 4 {
case 0, 1, 2, 3, 4, 5, 6, 7:
/* 0xxxxxxx*/
count++
chararr[chararr_count] = c
chararr_count++
case 12, 13:
/* 110x xxxx 10xx xxxx*/
count += 2
if count > utflen {
panic("malformed input: partial character at end")
}
char2 = uint16(bytearr[count-1])
if char2&0xC0 != 0x80 {
panic(fmt.Errorf("malformed input around byte %v", count))
}
chararr[chararr_count] = c&0x1F<<6 | char2&0x3F
chararr_count++
case 14:
/* 1110 xxxx 10xx xxxx 10xx xxxx*/
count += 3
if count > utflen {
panic("malformed input: partial character at end")
}
char2 = uint16(bytearr[count-2])
char3 = uint16(bytearr[count-1])
if char2&0xC0 != 0x80 || char3&0xC0 != 0x80 {
panic(fmt.Errorf("malformed input around byte %v", (count - 1)))
}
chararr[chararr_count] = c&0x0F<<12 | char2&0x3F<<6 | char3&0x3F<<0
chararr_count++
default:
/* 10xx xxxx, 1111 xxxx */
panic(fmt.Errorf("malformed input around byte %v", count))
}
}
// The number of chars produced may be less than utflen
chararr = chararr[0:chararr_count]
runes := utf16.Decode(chararr)
return string(runes)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/cp_utf8.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 702
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Get static field from class
type GET_STATIC struct{ base.Index16Instruction }
func (self *GET_STATIC) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
fieldRef := cp.GetConstant(self.Index).(*heap.FieldRef)
field := fieldRef.ResolvedField()
class := field.Class()
if !class.InitStarted() {
frame.RevertNextPC()
base.InitClass(frame.Thread(), class)
return
}
if !field.IsStatic() {
panic("java.lang.IncompatibleClassChangeError")
}
descriptor := field.Descriptor()
slotId := field.SlotId()
slots := class.StaticVars()
stack := frame.OperandStack()
switch descriptor[0] {
case 'Z', 'B', 'C', 'S', 'I':
stack.PushInt(slots.GetInt(slotId))
case 'F':
stack.PushFloat(slots.GetFloat(slotId))
case 'J':
stack.PushLong(slots.GetLong(slotId))
case 'D':
stack.PushDouble(slots.GetDouble(slotId))
case 'L', '[':
stack.PushRef(slots.GetRef(slotId))
default:
// todo
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/getstatic.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 290
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Invoke instance method; dispatch based on class
type INVOKE_VIRTUAL struct{ base.Index16Instruction }
func (self *INVOKE_VIRTUAL) Execute(frame *rtda.Frame) {
currentClass := frame.Method().Class()
cp := currentClass.ConstantPool()
methodRef := cp.GetConstant(self.Index).(*heap.MethodRef)
resolvedMethod := methodRef.ResolvedMethod()
if resolvedMethod.IsStatic() {
panic("java.lang.IncompatibleClassChangeError")
}
ref := frame.OperandStack().GetRefFromTop(resolvedMethod.ArgSlotCount() - 1)
if ref == nil {
panic("java.lang.NullPointerException")
}
if resolvedMethod.IsProtected() &&
resolvedMethod.Class().IsSuperClassOf(currentClass) &&
resolvedMethod.Class().GetPackageName() != currentClass.GetPackageName() &&
ref.Class() != currentClass &&
!ref.Class().IsSubClassOf(currentClass) {
if !(ref.Class().IsArray() && resolvedMethod.Name() == "clone") {
panic("java.lang.IllegalAccessError")
}
}
methodToBeInvoked := heap.LookupMethodInClass(ref.Class(),
methodRef.Name(), methodRef.Descriptor())
if methodToBeInvoked == nil || methodToBeInvoked.IsAbstract() {
panic("java.lang.AbstractMethodError")
}
base.InvokeMethod(frame, methodToBeInvoked)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/invokevirtual.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 331
|
```go
package base
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// jvms 5.5
func InitClass(thread *rtda.Thread, class *heap.Class) {
class.StartInit()
scheduleClinit(thread, class)
initSuperClass(thread, class)
}
func scheduleClinit(thread *rtda.Thread, class *heap.Class) {
clinit := class.GetClinitMethod()
if clinit != nil && clinit.Class() == class {
// exec <clinit>
newFrame := thread.NewFrame(clinit)
thread.PushFrame(newFrame)
}
}
func initSuperClass(thread *rtda.Thread, class *heap.Class) {
if !class.IsInterface() {
superClass := class.SuperClass()
if superClass != nil && !superClass.InitStarted() {
InitClass(thread, superClass)
}
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/base/class_init_logic.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 199
|
```go
package loads
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Load reference from array
type AALOAD struct{ base.NoOperandsInstruction }
func (self *AALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
refs := arrRef.Refs()
checkIndex(len(refs), index)
stack.PushRef(refs[index])
}
// Load byte or boolean from array
type BALOAD struct{ base.NoOperandsInstruction }
func (self *BALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
bytes := arrRef.Bytes()
checkIndex(len(bytes), index)
stack.PushInt(int32(bytes[index]))
}
// Load char from array
type CALOAD struct{ base.NoOperandsInstruction }
func (self *CALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
chars := arrRef.Chars()
checkIndex(len(chars), index)
stack.PushInt(int32(chars[index]))
}
// Load double from array
type DALOAD struct{ base.NoOperandsInstruction }
func (self *DALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
doubles := arrRef.Doubles()
checkIndex(len(doubles), index)
stack.PushDouble(doubles[index])
}
// Load float from array
type FALOAD struct{ base.NoOperandsInstruction }
func (self *FALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
floats := arrRef.Floats()
checkIndex(len(floats), index)
stack.PushFloat(floats[index])
}
// Load int from array
type IALOAD struct{ base.NoOperandsInstruction }
func (self *IALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
ints := arrRef.Ints()
checkIndex(len(ints), index)
stack.PushInt(ints[index])
}
// Load long from array
type LALOAD struct{ base.NoOperandsInstruction }
func (self *LALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
longs := arrRef.Longs()
checkIndex(len(longs), index)
stack.PushLong(longs[index])
}
// Load short from array
type SALOAD struct{ base.NoOperandsInstruction }
func (self *SALOAD) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
index := stack.PopInt()
arrRef := stack.PopRef()
checkNotNil(arrRef)
shorts := arrRef.Shorts()
checkIndex(len(shorts), index)
stack.PushInt(int32(shorts[index]))
}
func checkNotNil(ref *heap.Object) {
if ref == nil {
panic("java.lang.NullPointerException")
}
}
func checkIndex(arrLen int, index int32) {
if index < 0 || index >= int32(arrLen) {
panic("ArrayIndexOutOfBoundsException")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/loads/xaload.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 766
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Set static field in class
type PUT_STATIC struct{ base.Index16Instruction }
func (self *PUT_STATIC) Execute(frame *rtda.Frame) {
currentMethod := frame.Method()
currentClass := currentMethod.Class()
cp := currentClass.ConstantPool()
fieldRef := cp.GetConstant(self.Index).(*heap.FieldRef)
field := fieldRef.ResolvedField()
class := field.Class()
if !class.InitStarted() {
frame.RevertNextPC()
base.InitClass(frame.Thread(), class)
return
}
if !field.IsStatic() {
panic("java.lang.IncompatibleClassChangeError")
}
if field.IsFinal() {
if currentClass != class || currentMethod.Name() != "<clinit>" {
panic("java.lang.IllegalAccessError")
}
}
descriptor := field.Descriptor()
slotId := field.SlotId()
slots := class.StaticVars()
stack := frame.OperandStack()
switch descriptor[0] {
case 'Z', 'B', 'C', 'S', 'I':
slots.SetInt(slotId, stack.PopInt())
case 'F':
slots.SetFloat(slotId, stack.PopFloat())
case 'J':
slots.SetLong(slotId, stack.PopLong())
case 'D':
slots.SetDouble(slotId, stack.PopDouble())
case 'L', '[':
slots.SetRef(slotId, stack.PopRef())
default:
// todo
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/putstatic.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 342
|
```go
package reserved
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/native"
import _ "jvmgo/ch11/native/java/io"
import _ "jvmgo/ch11/native/java/lang"
import _ "jvmgo/ch11/native/java/security"
import _ "jvmgo/ch11/native/java/util/concurrent/atomic"
import _ "jvmgo/ch11/native/sun/io"
import _ "jvmgo/ch11/native/sun/misc"
import _ "jvmgo/ch11/native/sun/reflect"
// Invoke native method
type INVOKE_NATIVE struct{ base.NoOperandsInstruction }
func (self *INVOKE_NATIVE) Execute(frame *rtda.Frame) {
method := frame.Method()
className := method.Class().Name()
methodName := method.Name()
methodDescriptor := method.Descriptor()
nativeMethod := native.FindNativeMethod(className, methodName, methodDescriptor)
if nativeMethod == nil {
methodInfo := className + "." + methodName + methodDescriptor
panic("java.lang.UnsatisfiedLinkError: " + methodInfo)
}
nativeMethod(frame)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/reserved/invokenative.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 244
|
```go
package classfile
/*
Signature_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 signature_index;
}
*/
type SignatureAttribute struct {
cp ConstantPool
signatureIndex uint16
}
func (self *SignatureAttribute) readInfo(reader *ClassReader) {
self.signatureIndex = reader.readUint16()
}
func (self *SignatureAttribute) Signature() string {
return self.cp.getUtf8(self.signatureIndex)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_signature.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 94
|
```go
package math
import "math"
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Remainder double
type DREM struct{ base.NoOperandsInstruction }
func (self *DREM) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopDouble()
v1 := stack.PopDouble()
result := math.Mod(v1, v2) // todo
stack.PushDouble(result)
}
// Remainder float
type FREM struct{ base.NoOperandsInstruction }
func (self *FREM) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopFloat()
v1 := stack.PopFloat()
result := float32(math.Mod(float64(v1), float64(v2))) // todo
stack.PushFloat(result)
}
// Remainder int
type IREM struct{ base.NoOperandsInstruction }
func (self *IREM) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopInt()
v1 := stack.PopInt()
if v2 == 0 {
panic("java.lang.ArithmeticException: / by zero")
}
result := v1 % v2
stack.PushInt(result)
}
// Remainder long
type LREM struct{ base.NoOperandsInstruction }
func (self *LREM) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
v2 := stack.PopLong()
v1 := stack.PopLong()
if v2 == 0 {
panic("java.lang.ArithmeticException: / by zero")
}
result := v1 % v2
stack.PushLong(result)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/math/rem.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 358
|
```go
package constants
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Push byte
type BIPUSH struct {
val int8
}
func (self *BIPUSH) FetchOperands(reader *base.BytecodeReader) {
self.val = reader.ReadInt8()
}
func (self *BIPUSH) Execute(frame *rtda.Frame) {
i := int32(self.val)
frame.OperandStack().PushInt(i)
}
// Push short
type SIPUSH struct {
val int16
}
func (self *SIPUSH) FetchOperands(reader *base.BytecodeReader) {
self.val = reader.ReadInt16()
}
func (self *SIPUSH) Execute(frame *rtda.Frame) {
i := int32(self.val)
frame.OperandStack().PushInt(i)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/constants/ipush.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 177
|
```go
package conversions
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Convert float to double
type F2D struct{ base.NoOperandsInstruction }
func (self *F2D) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
f := stack.PopFloat()
d := float64(f)
stack.PushDouble(d)
}
// Convert float to int
type F2I struct{ base.NoOperandsInstruction }
func (self *F2I) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
f := stack.PopFloat()
i := int32(f)
stack.PushInt(i)
}
// Convert float to long
type F2L struct{ base.NoOperandsInstruction }
func (self *F2L) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
f := stack.PopFloat()
l := int64(f)
stack.PushLong(l)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/conversions/f2x.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 206
|
```go
package classfile
/*
field_info {
u2 access_flags;
u2 name_index;
u2 descriptor_index;
u2 attributes_count;
attribute_info attributes[attributes_count];
}
method_info {
u2 access_flags;
u2 name_index;
u2 descriptor_index;
u2 attributes_count;
attribute_info attributes[attributes_count];
}
*/
type MemberInfo struct {
cp ConstantPool
accessFlags uint16
nameIndex uint16
descriptorIndex uint16
attributes []AttributeInfo
}
// read field or method table
func readMembers(reader *ClassReader, cp ConstantPool) []*MemberInfo {
memberCount := reader.readUint16()
members := make([]*MemberInfo, memberCount)
for i := range members {
members[i] = readMember(reader, cp)
}
return members
}
func readMember(reader *ClassReader, cp ConstantPool) *MemberInfo {
return &MemberInfo{
cp: cp,
accessFlags: reader.readUint16(),
nameIndex: reader.readUint16(),
descriptorIndex: reader.readUint16(),
attributes: readAttributes(reader, cp),
}
}
func (self *MemberInfo) AccessFlags() uint16 {
return self.accessFlags
}
func (self *MemberInfo) Name() string {
return self.cp.getUtf8(self.nameIndex)
}
func (self *MemberInfo) Descriptor() string {
return self.cp.getUtf8(self.descriptorIndex)
}
func (self *MemberInfo) CodeAttribute() *CodeAttribute {
for _, attrInfo := range self.attributes {
switch attrInfo.(type) {
case *CodeAttribute:
return attrInfo.(*CodeAttribute)
}
}
return nil
}
func (self *MemberInfo) ConstantValueAttribute() *ConstantValueAttribute {
for _, attrInfo := range self.attributes {
switch attrInfo.(type) {
case *ConstantValueAttribute:
return attrInfo.(*ConstantValueAttribute)
}
}
return nil
}
func (self *MemberInfo) ExceptionsAttribute() *ExceptionsAttribute {
for _, attrInfo := range self.attributes {
switch attrInfo.(type) {
case *ExceptionsAttribute:
return attrInfo.(*ExceptionsAttribute)
}
}
return nil
}
func (self *MemberInfo) RuntimeVisibleAnnotationsAttributeData() []byte {
return self.getUnparsedAttributeData("RuntimeVisibleAnnotations")
}
func (self *MemberInfo) RuntimeVisibleParameterAnnotationsAttributeData() []byte {
return self.getUnparsedAttributeData("RuntimeVisibleParameterAnnotationsAttribute")
}
func (self *MemberInfo) AnnotationDefaultAttributeData() []byte {
return self.getUnparsedAttributeData("AnnotationDefault")
}
func (self *MemberInfo) getUnparsedAttributeData(name string) []byte {
for _, attrInfo := range self.attributes {
switch attrInfo.(type) {
case *UnparsedAttribute:
unparsedAttr := attrInfo.(*UnparsedAttribute)
if unparsedAttr.name == name {
return unparsedAttr.info
}
}
}
return nil
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/member_info.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 662
|
```go
package stack
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Pop the top operand stack value
type POP struct{ base.NoOperandsInstruction }
func (self *POP) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
stack.PopSlot()
}
// Pop the top one or two operand stack values
type POP2 struct{ base.NoOperandsInstruction }
func (self *POP2) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
stack.PopSlot()
stack.PopSlot()
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stack/pop.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 125
|
```go
package main
import "fmt"
import "jvmgo/ch11/instructions"
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
func interpret(thread *rtda.Thread, logInst bool) {
defer catchErr(thread)
loop(thread, logInst)
}
func catchErr(thread *rtda.Thread) {
if r := recover(); r != nil {
logFrames(thread)
panic(r)
}
}
func loop(thread *rtda.Thread, logInst bool) {
reader := &base.BytecodeReader{}
for {
frame := thread.CurrentFrame()
pc := frame.NextPC()
thread.SetPC(pc)
// decode
reader.Reset(frame.Method().Code(), pc)
opcode := reader.ReadUint8()
inst := instructions.NewInstruction(opcode)
inst.FetchOperands(reader)
frame.SetNextPC(reader.PC())
if logInst {
logInstruction(frame, inst)
}
// execute
inst.Execute(frame)
if thread.IsStackEmpty() {
break
}
}
}
func logInstruction(frame *rtda.Frame, inst base.Instruction) {
method := frame.Method()
className := method.Class().Name()
methodName := method.Name()
pc := frame.Thread().PC()
fmt.Printf("%v.%v() #%2d %T %v\n", className, methodName, pc, inst, inst)
}
func logFrames(thread *rtda.Thread) {
for !thread.IsStackEmpty() {
frame := thread.PopFrame()
method := frame.Method()
className := method.Class().Name()
lineNum := method.GetLineNumber(frame.NextPC())
fmt.Printf(">> line:%4d pc:%4d %v.%v%v \n",
lineNum, frame.NextPC(), className, method.Name(), method.Descriptor())
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/interpreter.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 393
|
```go
package base
import "jvmgo/ch11/rtda"
type Instruction interface {
FetchOperands(reader *BytecodeReader)
Execute(frame *rtda.Frame)
}
type NoOperandsInstruction struct {
// empty
}
func (self *NoOperandsInstruction) FetchOperands(reader *BytecodeReader) {
// nothing to do
}
type BranchInstruction struct {
Offset int
}
func (self *BranchInstruction) FetchOperands(reader *BytecodeReader) {
self.Offset = int(reader.ReadInt16())
}
type Index8Instruction struct {
Index uint
}
func (self *Index8Instruction) FetchOperands(reader *BytecodeReader) {
self.Index = uint(reader.ReadUint8())
}
type Index16Instruction struct {
Index uint
}
func (self *Index16Instruction) FetchOperands(reader *BytecodeReader) {
self.Index = uint(reader.ReadUint16())
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/base/instruction.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 191
|
```go
package classfile
/*
LocalVariableTable_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 local_variable_table_length;
{ u2 start_pc;
u2 length;
u2 name_index;
u2 descriptor_index;
u2 index;
} local_variable_table[local_variable_table_length];
}
*/
type LocalVariableTableAttribute struct {
localVariableTable []*LocalVariableTableEntry
}
type LocalVariableTableEntry struct {
startPc uint16
length uint16
nameIndex uint16
descriptorIndex uint16
index uint16
}
func (self *LocalVariableTableAttribute) readInfo(reader *ClassReader) {
localVariableTableLength := reader.readUint16()
self.localVariableTable = make([]*LocalVariableTableEntry, localVariableTableLength)
for i := range self.localVariableTable {
self.localVariableTable[i] = &LocalVariableTableEntry{
startPc: reader.readUint16(),
length: reader.readUint16(),
nameIndex: reader.readUint16(),
descriptorIndex: reader.readUint16(),
index: reader.readUint16(),
}
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/attr_local_variable_table.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 251
|
```go
package classfile
import "encoding/binary"
type ClassReader struct {
data []byte
}
// u1
func (self *ClassReader) readUint8() uint8 {
val := self.data[0]
self.data = self.data[1:]
return val
}
// u2
func (self *ClassReader) readUint16() uint16 {
val := binary.BigEndian.Uint16(self.data)
self.data = self.data[2:]
return val
}
// u4
func (self *ClassReader) readUint32() uint32 {
val := binary.BigEndian.Uint32(self.data)
self.data = self.data[4:]
return val
}
func (self *ClassReader) readUint64() uint64 {
val := binary.BigEndian.Uint64(self.data)
self.data = self.data[8:]
return val
}
func (self *ClassReader) readUint16s() []uint16 {
n := self.readUint16()
s := make([]uint16, n)
for i := range s {
s[i] = self.readUint16()
}
return s
}
func (self *ClassReader) readBytes(n uint32) []byte {
bytes := self.data[:n]
self.data = self.data[n:]
return bytes
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/class_reader.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 262
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Create new array of reference
type ANEW_ARRAY struct{ base.Index16Instruction }
func (self *ANEW_ARRAY) Execute(frame *rtda.Frame) {
cp := frame.Method().Class().ConstantPool()
classRef := cp.GetConstant(self.Index).(*heap.ClassRef)
componentClass := classRef.ResolvedClass()
// if componentClass.InitializationNotStarted() {
// thread := frame.Thread()
// frame.SetNextPC(thread.PC()) // undo anewarray
// thread.InitClass(componentClass)
// return
// }
stack := frame.OperandStack()
count := stack.PopInt()
if count < 0 {
panic("java.lang.NegativeArraySizeException")
}
arrClass := componentClass.ArrayClass()
arr := arrClass.NewArray(uint(count))
stack.PushRef(arr)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/anewarray.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 214
|
```go
package main
import "flag"
import "fmt"
import "os"
// java [-options] class [args...]
type Cmd struct {
helpFlag bool
versionFlag bool
verboseClassFlag bool
verboseInstFlag bool
cpOption string
XjreOption string
class string
args []string
}
func parseCmd() *Cmd {
cmd := &Cmd{}
flag.Usage = printUsage
flag.BoolVar(&cmd.helpFlag, "help", false, "print help message")
flag.BoolVar(&cmd.helpFlag, "?", false, "print help message")
flag.BoolVar(&cmd.versionFlag, "version", false, "print version and exit")
flag.BoolVar(&cmd.verboseClassFlag, "verbose", false, "enable verbose output")
flag.BoolVar(&cmd.verboseClassFlag, "verbose:class", false, "enable verbose output")
flag.BoolVar(&cmd.verboseInstFlag, "verbose:inst", false, "enable verbose output")
flag.StringVar(&cmd.cpOption, "classpath", "", "classpath")
flag.StringVar(&cmd.cpOption, "cp", "", "classpath")
flag.StringVar(&cmd.XjreOption, "Xjre", "", "path to jre")
flag.Parse()
args := flag.Args()
if len(args) > 0 {
cmd.class = args[0]
cmd.args = args[1:]
}
return cmd
}
func printUsage() {
fmt.Printf("Usage: %s [-options] class [args...]\n", os.Args[0])
//flag.PrintDefaults()
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/cmd.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 328
|
```go
package references
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
import "jvmgo/ch11/rtda/heap"
// Check whether object is of given type
type CHECK_CAST struct{ base.Index16Instruction }
func (self *CHECK_CAST) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
ref := stack.PopRef()
stack.PushRef(ref)
if ref == nil {
return
}
cp := frame.Method().Class().ConstantPool()
classRef := cp.GetConstant(self.Index).(*heap.ClassRef)
class := classRef.ResolvedClass()
if !ref.IsInstanceOf(class) {
panic("java.lang.ClassCastException")
}
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/references/checkcast.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 153
|
```go
package base
import "jvmgo/ch11/rtda"
func Branch(frame *rtda.Frame, offset int) {
pc := frame.Thread().PC()
nextPC := pc + offset
frame.SetNextPC(nextPC)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/base/branch_logic.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 50
|
```go
package classfile
/*
CONSTANT_NameAndType_info {
u1 tag;
u2 name_index;
u2 descriptor_index;
}
*/
type ConstantNameAndTypeInfo struct {
nameIndex uint16
descriptorIndex uint16
}
func (self *ConstantNameAndTypeInfo) readInfo(reader *ClassReader) {
self.nameIndex = reader.readUint16()
self.descriptorIndex = reader.readUint16()
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/classfile/cp_name_and_type.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 88
|
```go
package stack
import "jvmgo/ch11/instructions/base"
import "jvmgo/ch11/rtda"
// Duplicate the top operand stack value
type DUP struct{ base.NoOperandsInstruction }
func (self *DUP) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot := stack.PopSlot()
stack.PushSlot(slot)
stack.PushSlot(slot)
}
// Duplicate the top operand stack value and insert two values down
type DUP_X1 struct{ base.NoOperandsInstruction }
func (self *DUP_X1) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot1 := stack.PopSlot()
slot2 := stack.PopSlot()
stack.PushSlot(slot1)
stack.PushSlot(slot2)
stack.PushSlot(slot1)
}
// Duplicate the top operand stack value and insert two or three values down
type DUP_X2 struct{ base.NoOperandsInstruction }
func (self *DUP_X2) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot1 := stack.PopSlot()
slot2 := stack.PopSlot()
slot3 := stack.PopSlot()
stack.PushSlot(slot1)
stack.PushSlot(slot3)
stack.PushSlot(slot2)
stack.PushSlot(slot1)
}
// Duplicate the top one or two operand stack values
type DUP2 struct{ base.NoOperandsInstruction }
func (self *DUP2) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot1 := stack.PopSlot()
slot2 := stack.PopSlot()
stack.PushSlot(slot2)
stack.PushSlot(slot1)
stack.PushSlot(slot2)
stack.PushSlot(slot1)
}
// Duplicate the top one or two operand stack values and insert two or three values down
type DUP2_X1 struct{ base.NoOperandsInstruction }
func (self *DUP2_X1) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot1 := stack.PopSlot()
slot2 := stack.PopSlot()
slot3 := stack.PopSlot()
stack.PushSlot(slot2)
stack.PushSlot(slot1)
stack.PushSlot(slot3)
stack.PushSlot(slot2)
stack.PushSlot(slot1)
}
// Duplicate the top one or two operand stack values and insert two, three, or four values down
type DUP2_X2 struct{ base.NoOperandsInstruction }
func (self *DUP2_X2) Execute(frame *rtda.Frame) {
stack := frame.OperandStack()
slot1 := stack.PopSlot()
slot2 := stack.PopSlot()
slot3 := stack.PopSlot()
slot4 := stack.PopSlot()
stack.PushSlot(slot2)
stack.PushSlot(slot1)
stack.PushSlot(slot4)
stack.PushSlot(slot3)
stack.PushSlot(slot2)
stack.PushSlot(slot1)
}
```
|
/content/code_sandbox/v1/code/go/src/jvmgo/ch11/instructions/stack/dup.go
|
go
| 2016-01-06T13:13:45
| 2024-08-16T13:42:58
|
jvmgo-book
|
zxh0/jvmgo-book
| 1,605
| 584
|
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