Add component: Rich Textbox (#19)

- Add component: Rich Textbox (f08fb5a730b194000c0df9f0169ca15a39ee0fc9)


Co-authored-by: yuvraj sharma <ysharma@users.noreply.huggingface.co>

components/rich-textbox.json

@@ -0,0 +1,24 @@
+{
+  "id": "rich-textbox",
+  "name": "Rich Textbox",
+  "description": "A rich text editor with a formatting toolbar supporting bold, italic, underline, strikethrough, text color, highlight, ordered/unordered lists, blockquotes, inline code, code blocks, links, and emojis.",
+  "author": "ysharma",
+  "tags": [
+    "input",
+    "textbox",
+    "rich-text",
+    "editor",
+    "formatting"
+  ],
+  "html_template": "\n<div class=\"rte-container\">\n    <div class=\"rte-toolbar\">\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-cmd=\"bold\" title=\"Bold (Ctrl+B)\"><b>B</b></button>\n            <button class=\"rte-btn\" data-cmd=\"italic\" title=\"Italic (Ctrl+I)\"><i>I</i></button>\n            <button class=\"rte-btn\" data-cmd=\"underline\" title=\"Underline (Ctrl+U)\"><u>U</u></button>\n            <button class=\"rte-btn\" data-cmd=\"strikeThrough\" title=\"Strikethrough\"><s>S</s></button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn rte-color-btn\" data-action=\"foreColor\" title=\"Text Color\">\n                <span class=\"rte-color-label\">A</span>\n                <span class=\"rte-color-bar\" id=\"rte-fg-bar\"></span>\n            </button>\n            <button class=\"rte-btn rte-color-btn\" data-action=\"hiliteColor\" title=\"Highlight\">\n                <span class=\"rte-hl-label\">A</span>\n                <span class=\"rte-color-bar\" id=\"rte-bg-bar\"></span>\n            </button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-cmd=\"insertOrderedList\" title=\"Ordered List\">OL</button>\n            <button class=\"rte-btn\" data-cmd=\"insertUnorderedList\" title=\"Unordered List\">UL</button>\n            <button class=\"rte-btn\" data-action=\"blockquote\" title=\"Blockquote\">&gt;</button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-action=\"inlineCode\" title=\"Inline Code\">&lt;/&gt;</button>\n            <button class=\"rte-btn\" data-action=\"codeBlock\" title=\"Code Block\">{ }</button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-action=\"link\" title=\"Insert Link\">&#128279;</button>\n            <button class=\"rte-btn\" data-action=\"emoji\" title=\"Insert Emoji\">&#128578;</button>\n        </div>\n    </div>\n    <div class=\"rte-popup rte-color-popup\" id=\"rte-color-popup\" style=\"display:none;\"></div>\n    <div class=\"rte-popup rte-link-popup\" id=\"rte-link-popup\" style=\"display:none;\">\n        <input type=\"text\" class=\"rte-link-input\" placeholder=\"https://example.com\" />\n        <div class=\"rte-link-actions\">\n            <button class=\"rte-link-cancel\">Cancel</button>\n            <button class=\"rte-link-ok\">OK</button>\n        </div>\n    </div>\n    <div class=\"rte-popup rte-emoji-popup\" id=\"rte-emoji-popup\" style=\"display:none;\"></div>\n    <div class=\"rte-editor\" contenteditable=\"true\"></div>\n</div>\n",
+  "css_template": "\n.rte-container {\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: var(--radius-lg, 8px);\n    overflow: visible;\n    font-family: var(--font, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);\n    position: relative;\n    background: var(--background-fill-primary, #ffffff);\n}\n.rte-toolbar {\n    display: flex;\n    flex-wrap: wrap;\n    align-items: center;\n    gap: 2px;\n    padding: 6px 8px;\n    background: var(--background-fill-secondary, #f9fafb);\n    border-bottom: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: var(--radius-lg, 8px) var(--radius-lg, 8px) 0 0;\n}\n.rte-btn-group {\n    display: flex;\n    gap: 2px;\n}\n.rte-btn {\n    width: 32px;\n    height: 32px;\n    display: flex;\n    flex-direction: column;\n    align-items: center;\n    justify-content: center;\n    border: 1px solid transparent;\n    border-radius: 4px;\n    background: transparent;\n    cursor: pointer;\n    font-size: 14px;\n    color: var(--body-text-color, #374151);\n    transition: background 0.15s, border-color 0.15s;\n    padding: 0;\n    line-height: 1;\n}\n.rte-btn:hover {\n    background: var(--background-fill-primary, #e5e7eb);\n    border-color: var(--border-color-primary, #d1d5db);\n}\n.rte-btn.active {\n    background: #dbeafe;\n    border-color: #3b82f6;\n    color: #3b82f6;\n}\n.rte-sep {\n    width: 1px;\n    height: 24px;\n    background: var(--border-color-primary, #d1d5db);\n    margin: 0 4px;\n    flex-shrink: 0;\n}\n.rte-color-btn {\n    gap: 1px;\n}\n.rte-color-label {\n    font-weight: 700;\n    font-size: 15px;\n    line-height: 1;\n}\n.rte-hl-label {\n    font-weight: 700;\n    font-size: 15px;\n    line-height: 1;\n    background: #ffff00;\n    padding: 0 3px;\n    border-radius: 2px;\n}\n.rte-color-bar {\n    display: block;\n    height: 3px;\n    width: 18px;\n    border-radius: 1px;\n}\n#rte-fg-bar { background: #e53e3e; }\n#rte-bg-bar { background: #ffff00; }\n\n/* Popups */\n.rte-popup {\n    position: absolute;\n    z-index: 1000;\n    background: var(--background-fill-primary, #ffffff);\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: 8px;\n    box-shadow: 0 4px 16px rgba(0,0,0,0.12);\n    padding: 8px;\n}\n.rte-color-popup { left: 50px; top: 46px; }\n.rte-color-grid {\n    display: grid;\n    grid-template-columns: repeat(6, 1fr);\n    gap: 4px;\n}\n.rte-color-swatch {\n    width: 26px;\n    height: 26px;\n    border-radius: 4px;\n    border: 2px solid transparent;\n    cursor: pointer;\n    transition: transform 0.1s, border-color 0.15s;\n    padding: 0;\n}\n.rte-color-swatch:hover {\n    transform: scale(1.15);\n    border-color: #3b82f6;\n}\n.rte-link-popup {\n    left: 50%;\n    top: 46px;\n    transform: translateX(-50%);\n    width: 300px;\n    padding: 12px;\n}\n.rte-link-input {\n    width: 100%;\n    padding: 8px 10px;\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: 6px;\n    font-size: 13px;\n    box-sizing: border-box;\n    margin-bottom: 8px;\n    outline: none;\n}\n.rte-link-input:focus {\n    border-color: #3b82f6;\n    box-shadow: 0 0 0 2px rgba(59,130,246,0.15);\n}\n.rte-link-actions {\n    display: flex;\n    justify-content: flex-end;\n    gap: 6px;\n}\n.rte-link-actions button {\n    padding: 5px 14px;\n    border-radius: 6px;\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    cursor: pointer;\n    font-size: 13px;\n    background: var(--background-fill-primary, #fff);\n}\n.rte-link-ok {\n    background: #3b82f6 !important;\n    color: #fff !important;\n    border-color: #3b82f6 !important;\n}\n.rte-link-ok:hover { background: #2563eb !important; }\n.rte-emoji-popup {\n    right: 8px;\n    top: 46px;\n    width: 270px;\n    max-height: 220px;\n    overflow-y: auto;\n}\n.rte-emoji-grid {\n    display: grid;\n    grid-template-columns: repeat(8, 1fr);\n    gap: 2px;\n}\n.rte-emoji-item {\n    width: 30px;\n    height: 30px;\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    cursor: pointer;\n    border-radius: 4px;\n    font-size: 18px;\n    border: none;\n    background: transparent;\n    padding: 0;\n}\n.rte-emoji-item:hover {\n    background: var(--background-fill-secondary, #f3f4f6);\n}\n\n/* Editor */\n.rte-editor {\n    min-height: 200px;\n    max-height: 500px;\n    padding: 12px 16px;\n    outline: none;\n    font-size: 15px;\n    line-height: 1.7;\n    color: var(--body-text-color, #1f2937);\n    overflow-y: auto;\n}\n.rte-editor:empty:before {\n    content: attr(data-placeholder);\n    color: var(--body-text-color-subdued, #9ca3af);\n    pointer-events: none;\n}\n.rte-editor blockquote {\n    border-left: 4px solid #3b82f6;\n    margin: 8px 0;\n    padding: 6px 14px;\n    color: #4b5563;\n    background: #f0f5ff;\n    border-radius: 0 6px 6px 0;\n}\n.rte-editor code {\n    background: #f3f4f6;\n    padding: 2px 6px;\n    border-radius: 4px;\n    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;\n    font-size: 0.88em;\n    color: #e11d48;\n}\n.rte-editor pre {\n    background: #1e293b;\n    color: #e2e8f0;\n    padding: 14px 18px;\n    border-radius: 8px;\n    overflow-x: auto;\n    margin: 10px 0;\n    line-height: 1.5;\n}\n.rte-editor pre code {\n    background: transparent;\n    color: inherit;\n    padding: 0;\n    font-size: 0.9em;\n}\n.rte-editor a {\n    color: #3b82f6;\n    text-decoration: underline;\n}\n.rte-editor ul, .rte-editor ol {\n    padding-left: 24px;\n    margin: 6px 0;\n}\n.rte-editor li {\n    margin: 2px 0;\n}\n",
+  "js_on_load": "\n(function() {\n    var editor = element.querySelector('.rte-editor');\n    var colorPopup = element.querySelector('#rte-color-popup');\n    var linkPopup = element.querySelector('#rte-link-popup');\n    var emojiPopup = element.querySelector('#rte-emoji-popup');\n    var fgBar = element.querySelector('#rte-fg-bar');\n    var bgBar = element.querySelector('#rte-bg-bar');\n    var linkInput = element.querySelector('.rte-link-input');\n\n    var activeColorAction = null;\n    var savedRange = null;\n\n    /* Placeholder */\n    if (props.placeholder) {\n        editor.setAttribute('data-placeholder', props.placeholder);\n    }\n\n    /* Initial content */\n    if (props.value) {\n        editor.innerHTML = props.value;\n    }\n\n    /* Use CSS-based styling for foreColor so it generates <span style=\"color:...\"> instead of <font> */\n    try { document.execCommand('styleWithCSS', false, true); } catch(e) {}\n\n    /* --- Helpers --- */\n    function saveSelection() {\n        var sel = window.getSelection();\n        if (sel && sel.rangeCount > 0) {\n            savedRange = sel.getRangeAt(0).cloneRange();\n        }\n    }\n    function restoreSelection() {\n        if (savedRange) {\n            var sel = window.getSelection();\n            sel.removeAllRanges();\n            sel.addRange(savedRange);\n        }\n    }\n    function closeAllPopups() {\n        colorPopup.style.display = 'none';\n        linkPopup.style.display = 'none';\n        emojiPopup.style.display = 'none';\n    }\n    function syncValue() {\n        var html = editor.innerHTML;\n        if (html !== props.value) {\n            props.value = html;\n        }\n    }\n    function updateToolbarState() {\n        element.querySelectorAll('.rte-btn[data-cmd]').forEach(function(btn) {\n            try {\n                if (document.queryCommandState(btn.dataset.cmd)) {\n                    btn.classList.add('active');\n                } else {\n                    btn.classList.remove('active');\n                }\n            } catch(e) {}\n        });\n    }\n\n    /* --- Color Palette --- */\n    var COLORS = [\n        '#000000','#434343','#666666','#999999','#b7b7b7','#ffffff',\n        '#e53e3e','#dd6b20','#d69e2e','#38a169','#3182ce','#805ad5',\n        '#ff0000','#ff9900','#ffff00','#00ff00','#00bfff','#0000ff',\n        '#f56565','#ed8936','#ecc94b','#48bb78','#4299e1','#9f7aea'\n    ];\n    var colorGrid = document.createElement('div');\n    colorGrid.className = 'rte-color-grid';\n    COLORS.forEach(function(color) {\n        var swatch = document.createElement('button');\n        swatch.className = 'rte-color-swatch';\n        swatch.style.background = color;\n        if (color === '#ffffff') {\n            swatch.style.borderColor = '#d1d5db';\n        }\n        swatch.setAttribute('data-color', color);\n        swatch.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        swatch.addEventListener('click', function(e) {\n            e.preventDefault();\n            e.stopPropagation();\n            restoreSelection();\n            editor.focus();\n            document.execCommand(activeColorAction, false, color);\n            if (activeColorAction === 'foreColor') {\n                fgBar.style.background = color;\n            } else {\n                bgBar.style.background = color;\n            }\n            closeAllPopups();\n            syncValue();\n        });\n        colorGrid.appendChild(swatch);\n    });\n    colorPopup.appendChild(colorGrid);\n\n    /* --- Emoji Grid --- */\n    var EMOJIS = [\n        '\\u{1F600}','\\u{1F602}','\\u{1F60A}','\\u{1F60D}','\\u{1F970}','\\u{1F60E}','\\u{1F914}','\\u{1F622}',\n        '\\u{1F621}','\\u{1F973}','\\u{1F631}','\\u{1F917}','\\u{1F634}','\\u{1F92E}','\\u{1F910}','\\u{1F607}',\n        '\\u{1F44D}','\\u{1F44E}','\\u{1F44F}','\\u{1F64C}','\\u{1F4AA}','\\u{1F91D}','\\u270C\\uFE0F','\\u{1F44B}',\n        '\\u2764\\uFE0F','\\u{1F525}','\\u2B50','\\u{1F4AF}','\\u2705','\\u274C','\\u26A1','\\u{1F389}',\n        '\\u{1F4CC}','\\u{1F4A1}','\\u{1F4CE}','\\u{1F517}','\\u{1F4DD}','\\u{1F4AC}','\\u{1F440}','\\u{1F3AF}'\n    ];\n    var emojiGrid = document.createElement('div');\n    emojiGrid.className = 'rte-emoji-grid';\n    EMOJIS.forEach(function(emoji) {\n        var btn = document.createElement('button');\n        btn.className = 'rte-emoji-item';\n        btn.textContent = emoji;\n        btn.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        btn.addEventListener('click', function(e) {\n            e.preventDefault();\n            e.stopPropagation();\n            restoreSelection();\n            editor.focus();\n            document.execCommand('insertText', false, emoji);\n            closeAllPopups();\n            syncValue();\n        });\n        emojiGrid.appendChild(btn);\n    });\n    emojiPopup.appendChild(emojiGrid);\n\n    /* --- Close popups on outside click --- */\n    document.addEventListener('mousedown', function(e) {\n        if (!element.contains(e.target)) {\n            closeAllPopups();\n        }\n    });\n\n    /* --- Editor input sync --- */\n    editor.addEventListener('input', function() {\n        syncValue();\n    });\n\n    /* --- Toolbar: execCommand buttons --- */\n    element.querySelectorAll('.rte-btn[data-cmd]').forEach(function(btn) {\n        btn.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        btn.addEventListener('click', function(e) {\n            e.preventDefault();\n            editor.focus();\n            document.execCommand(btn.dataset.cmd, false, null);\n            syncValue();\n            updateToolbarState();\n        });\n    });\n\n    /* --- Toolbar: custom action buttons --- */\n    element.querySelectorAll('.rte-btn[data-action]').forEach(function(btn) {\n        btn.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        btn.addEventListener('click', function(e) {\n            e.preventDefault();\n            var action = btn.dataset.action;\n\n            if (action === 'foreColor' || action === 'hiliteColor') {\n                saveSelection();\n                activeColorAction = action;\n                closeAllPopups();\n                colorPopup.style.display = colorPopup.style.display === 'none' ? 'block' : 'none';\n            } else if (action === 'link') {\n                saveSelection();\n                closeAllPopups();\n                linkInput.value = '';\n                linkPopup.style.display = 'block';\n                linkInput.focus();\n            } else if (action === 'emoji') {\n                saveSelection();\n                closeAllPopups();\n                emojiPopup.style.display = emojiPopup.style.display === 'none' ? 'block' : 'none';\n            } else if (action === 'inlineCode') {\n                var sel = window.getSelection();\n                if (sel && sel.rangeCount > 0 && !sel.isCollapsed) {\n                    var range = sel.getRangeAt(0);\n                    var code = document.createElement('code');\n                    try {\n                        range.surroundContents(code);\n                    } catch(err) {\n                        code.textContent = range.toString();\n                        range.deleteContents();\n                        range.insertNode(code);\n                    }\n                    sel.removeAllRanges();\n                }\n                syncValue();\n            } else if (action === 'codeBlock') {\n                var sel = window.getSelection();\n                if (sel && sel.rangeCount > 0) {\n                    var range = sel.getRangeAt(0);\n                    var pre = document.createElement('pre');\n                    var codeEl = document.createElement('code');\n                    if (sel.isCollapsed) {\n                        codeEl.textContent = '\\n';\n                    } else {\n                        codeEl.textContent = range.toString();\n                        range.deleteContents();\n                    }\n                    pre.appendChild(codeEl);\n                    range.insertNode(pre);\n                    var newRange = document.createRange();\n                    newRange.selectNodeContents(codeEl);\n                    newRange.collapse(false);\n                    sel.removeAllRanges();\n                    sel.addRange(newRange);\n                }\n                syncValue();\n            } else if (action === 'blockquote') {\n                editor.focus();\n                document.execCommand('formatBlock', false, 'blockquote');\n                syncValue();\n            }\n        });\n    });\n\n    /* --- Link popup handlers --- */\n    element.querySelector('.rte-link-ok').addEventListener('mousedown', function(e) { e.preventDefault(); });\n    element.querySelector('.rte-link-ok').addEventListener('click', function(e) {\n        e.preventDefault();\n        var url = linkInput.value.trim();\n        if (url) {\n            restoreSelection();\n            editor.focus();\n            document.execCommand('createLink', false, url);\n        }\n        closeAllPopups();\n        syncValue();\n    });\n    element.querySelector('.rte-link-cancel').addEventListener('mousedown', function(e) { e.preventDefault(); });\n    element.querySelector('.rte-link-cancel').addEventListener('click', function(e) {\n        e.preventDefault();\n        closeAllPopups();\n    });\n    linkInput.addEventListener('keydown', function(e) {\n        if (e.key === 'Enter') {\n            e.preventDefault();\n            element.querySelector('.rte-link-ok').click();\n        } else if (e.key === 'Escape') {\n            closeAllPopups();\n        }\n    });\n\n    /* --- Active state tracking --- */\n    editor.addEventListener('keyup', updateToolbarState);\n    editor.addEventListener('mouseup', updateToolbarState);\n\n    /* --- Keyboard shortcut sync --- */\n    editor.addEventListener('keydown', function(e) {\n        if ((e.ctrlKey || e.metaKey) && ['b','i','u'].indexOf(e.key.toLowerCase()) !== -1) {\n            setTimeout(function() {\n                syncValue();\n                updateToolbarState();\n            }, 0);\n        }\n    });\n\n    /* --- Helper: check if cursor is at the end of a node --- */\n    function isAtEndOf(node) {\n        var sel = window.getSelection();\n        if (!sel || sel.rangeCount === 0) return false;\n        var range = sel.getRangeAt(0);\n        var testRange = document.createRange();\n        testRange.selectNodeContents(node);\n        testRange.setStart(range.endContainer, range.endOffset);\n        return testRange.toString().length === 0;\n    }\n\n    /* --- Helper: insert a clean paragraph after a node and move cursor there --- */\n    function insertParagraphAfter(refNode) {\n        var sel = window.getSelection();\n        var p = document.createElement('p');\n        p.innerHTML = '<br>';\n        refNode.parentNode.insertBefore(p, refNode.nextSibling);\n        var newR = document.createRange();\n        newR.setStart(p, 0);\n        newR.collapse(true);\n        sel.removeAllRanges();\n        sel.addRange(newR);\n    }\n\n    /* --- Helper: find ancestor matching condition, up to (but not including) stopAt --- */\n    function findAncestor(node, testFn, stopAt) {\n        var cur = node && node.nodeType === 3 ? node.parentNode : node;\n        while (cur && cur !== stopAt) {\n            if (testFn(cur)) return cur;\n            cur = cur.parentNode;\n        }\n        return null;\n    }\n\n    function isHighlightSpan(el) {\n        return el.nodeName === 'SPAN' && el.style && (el.style.backgroundColor || el.style.color);\n    }\n    function isInlineCode(el) {\n        return el.nodeName === 'CODE' && (!el.parentNode || el.parentNode.nodeName !== 'PRE');\n    }\n\n    /* ======================================================\n       ENTER key: escape inline elements (highlight, code)\n       and block elements (blockquote, pre)\n       ====================================================== */\n    editor.addEventListener('keydown', function(e) {\n        if (e.key !== 'Enter' || e.shiftKey) return;\n        var sel = window.getSelection();\n        if (!sel || sel.rangeCount === 0) return;\n        var range = sel.getRangeAt(0);\n        var node = range.startContainer;\n\n        /* --- 1. Inline: <span style=\"background-color/color\"> or <code> (not inside <pre>) --- */\n        var inlineEl = findAncestor(node, function(el) {\n            return isHighlightSpan(el) || isInlineCode(el);\n        }, editor);\n\n        if (inlineEl && isAtEndOf(inlineEl)) {\n            e.preventDefault();\n            /* Split: move cursor out after the inline element, then let the browser do a normal line break */\n            /* Insert a zero-width space after the inline element to anchor the cursor */\n            var textNode = document.createTextNode('\\u200B');\n            if (inlineEl.nextSibling) {\n                inlineEl.parentNode.insertBefore(textNode, inlineEl.nextSibling);\n            } else {\n                inlineEl.parentNode.appendChild(textNode);\n            }\n            var newR = document.createRange();\n            newR.setStartAfter(textNode);\n            newR.collapse(true);\n            sel.removeAllRanges();\n            sel.addRange(newR);\n            /* Now insert a line break at the new position outside the inline element */\n            document.execCommand('insertParagraph', false, null);\n            syncValue();\n            return;\n        }\n\n        /* --- 2. Block: <pre> (double-Enter escape) --- */\n        var preEl = findAncestor(node, function(el) { return el.nodeName === 'PRE'; }, editor);\n        if (preEl) {\n            var codeChild = preEl.querySelector('code') || preEl;\n            var text = codeChild.textContent;\n            if (isAtEndOf(preEl) && (text.endsWith('\\n') || text.endsWith('\\n\\n'))) {\n                e.preventDefault();\n                codeChild.textContent = text.replace(/\\n+$/, '');\n                insertParagraphAfter(preEl);\n                syncValue();\n                return;\n            }\n            return; /* Normal Enter inside pre \u2014 don't interfere */\n        }\n\n        /* --- 3. Block: <blockquote> (Enter on empty line escapes) --- */\n        var bqEl = findAncestor(node, function(el) { return el.nodeName === 'BLOCKQUOTE'; }, editor);\n        if (bqEl) {\n            var lastEl = bqEl.lastElementChild || bqEl.lastChild;\n            var isEmpty = false;\n            if (lastEl && lastEl.nodeName === 'BR') isEmpty = true;\n            else if (lastEl && (lastEl.nodeName === 'DIV' || lastEl.nodeName === 'P') &&\n                     (lastEl.innerHTML === '<br>' || lastEl.innerHTML === '' || lastEl.textContent.trim() === '')) isEmpty = true;\n            if (isEmpty && isAtEndOf(bqEl)) {\n                e.preventDefault();\n                lastEl.remove();\n                insertParagraphAfter(bqEl);\n                syncValue();\n                return;\n            }\n        }\n    });\n\n    /* ======================================================\n       ESCAPE key: break out of current block/inline formatting\n       ====================================================== */\n    editor.addEventListener('keydown', function(e) {\n        if (e.key !== 'Escape') return;\n        var sel = window.getSelection();\n        if (!sel || sel.rangeCount === 0) return;\n        var node = sel.anchorNode;\n\n        /* Inline: highlight span or inline code */\n        var inlineEl = findAncestor(node, function(el) {\n            return isHighlightSpan(el) || isInlineCode(el);\n        }, editor);\n        if (inlineEl) {\n            e.preventDefault();\n            /* Move cursor to right after the inline element */\n            var textNode = document.createTextNode('\\u200B');\n            if (inlineEl.nextSibling) {\n                inlineEl.parentNode.insertBefore(textNode, inlineEl.nextSibling);\n            } else {\n                inlineEl.parentNode.appendChild(textNode);\n            }\n            var newR = document.createRange();\n            newR.setStartAfter(textNode);\n            newR.collapse(true);\n            sel.removeAllRanges();\n            sel.addRange(newR);\n            syncValue();\n            return;\n        }\n\n        /* Block: blockquote */\n        var bqEl = findAncestor(node, function(el) { return el.nodeName === 'BLOCKQUOTE'; }, editor);\n        if (bqEl) {\n            e.preventDefault();\n            document.execCommand('formatBlock', false, 'p');\n            syncValue();\n            return;\n        }\n\n        /* Block: pre/code block */\n        var preEl = findAncestor(node, function(el) { return el.nodeName === 'PRE'; }, editor);\n        if (preEl) {\n            e.preventDefault();\n            var text = preEl.textContent;\n            var p = document.createElement('p');\n            p.textContent = text;\n            preEl.parentNode.replaceChild(p, preEl);\n            var newR = document.createRange();\n            newR.selectNodeContents(p);\n            newR.collapse(false);\n            sel.removeAllRanges();\n            sel.addRange(newR);\n            syncValue();\n            return;\n        }\n    });\n})();\n",
+  "default_props": {
+    "value": "",
+    "label": "Rich Textbox",
+    "placeholder": "Type here..."
+  },
+  "python_code": "class RichTextbox(gr.HTML):\n    \"\"\"A rich text editor component built on gr.HTML with a formatting toolbar.\"\"\"\n\n    def __init__(\n        self,\n        value=\"\",\n        label=\"Rich Textbox\",\n        placeholder=\"Type here...\",\n        **kwargs,\n    ):\n        html_template = \"\"\"\n<div class=\"rte-container\">\n    <div class=\"rte-toolbar\">\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-cmd=\"bold\" title=\"Bold (Ctrl+B)\"><b>B</b></button>\n            <button class=\"rte-btn\" data-cmd=\"italic\" title=\"Italic (Ctrl+I)\"><i>I</i></button>\n            <button class=\"rte-btn\" data-cmd=\"underline\" title=\"Underline (Ctrl+U)\"><u>U</u></button>\n            <button class=\"rte-btn\" data-cmd=\"strikeThrough\" title=\"Strikethrough\"><s>S</s></button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn rte-color-btn\" data-action=\"foreColor\" title=\"Text Color\">\n                <span class=\"rte-color-label\">A</span>\n                <span class=\"rte-color-bar\" id=\"rte-fg-bar\"></span>\n            </button>\n            <button class=\"rte-btn rte-color-btn\" data-action=\"hiliteColor\" title=\"Highlight\">\n                <span class=\"rte-hl-label\">A</span>\n                <span class=\"rte-color-bar\" id=\"rte-bg-bar\"></span>\n            </button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-cmd=\"insertOrderedList\" title=\"Ordered List\">OL</button>\n            <button class=\"rte-btn\" data-cmd=\"insertUnorderedList\" title=\"Unordered List\">UL</button>\n            <button class=\"rte-btn\" data-action=\"blockquote\" title=\"Blockquote\">&gt;</button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-action=\"inlineCode\" title=\"Inline Code\">&lt;/&gt;</button>\n            <button class=\"rte-btn\" data-action=\"codeBlock\" title=\"Code Block\">{ }</button>\n        </div>\n        <div class=\"rte-sep\"></div>\n        <div class=\"rte-btn-group\">\n            <button class=\"rte-btn\" data-action=\"link\" title=\"Insert Link\">&#128279;</button>\n            <button class=\"rte-btn\" data-action=\"emoji\" title=\"Insert Emoji\">&#128578;</button>\n        </div>\n    </div>\n    <div class=\"rte-popup rte-color-popup\" id=\"rte-color-popup\" style=\"display:none;\"></div>\n    <div class=\"rte-popup rte-link-popup\" id=\"rte-link-popup\" style=\"display:none;\">\n        <input type=\"text\" class=\"rte-link-input\" placeholder=\"https://example.com\" />\n        <div class=\"rte-link-actions\">\n            <button class=\"rte-link-cancel\">Cancel</button>\n            <button class=\"rte-link-ok\">OK</button>\n        </div>\n    </div>\n    <div class=\"rte-popup rte-emoji-popup\" id=\"rte-emoji-popup\" style=\"display:none;\"></div>\n    <div class=\"rte-editor\" contenteditable=\"true\"></div>\n</div>\n\"\"\"\n\n        css_template = \"\"\"\n.rte-container {\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: var(--radius-lg, 8px);\n    overflow: visible;\n    font-family: var(--font, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);\n    position: relative;\n    background: var(--background-fill-primary, #ffffff);\n}\n.rte-toolbar {\n    display: flex;\n    flex-wrap: wrap;\n    align-items: center;\n    gap: 2px;\n    padding: 6px 8px;\n    background: var(--background-fill-secondary, #f9fafb);\n    border-bottom: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: var(--radius-lg, 8px) var(--radius-lg, 8px) 0 0;\n}\n.rte-btn-group {\n    display: flex;\n    gap: 2px;\n}\n.rte-btn {\n    width: 32px;\n    height: 32px;\n    display: flex;\n    flex-direction: column;\n    align-items: center;\n    justify-content: center;\n    border: 1px solid transparent;\n    border-radius: 4px;\n    background: transparent;\n    cursor: pointer;\n    font-size: 14px;\n    color: var(--body-text-color, #374151);\n    transition: background 0.15s, border-color 0.15s;\n    padding: 0;\n    line-height: 1;\n}\n.rte-btn:hover {\n    background: var(--background-fill-primary, #e5e7eb);\n    border-color: var(--border-color-primary, #d1d5db);\n}\n.rte-btn.active {\n    background: #dbeafe;\n    border-color: #3b82f6;\n    color: #3b82f6;\n}\n.rte-sep {\n    width: 1px;\n    height: 24px;\n    background: var(--border-color-primary, #d1d5db);\n    margin: 0 4px;\n    flex-shrink: 0;\n}\n.rte-color-btn {\n    gap: 1px;\n}\n.rte-color-label {\n    font-weight: 700;\n    font-size: 15px;\n    line-height: 1;\n}\n.rte-hl-label {\n    font-weight: 700;\n    font-size: 15px;\n    line-height: 1;\n    background: #ffff00;\n    padding: 0 3px;\n    border-radius: 2px;\n}\n.rte-color-bar {\n    display: block;\n    height: 3px;\n    width: 18px;\n    border-radius: 1px;\n}\n#rte-fg-bar { background: #e53e3e; }\n#rte-bg-bar { background: #ffff00; }\n\n/* Popups */\n.rte-popup {\n    position: absolute;\n    z-index: 1000;\n    background: var(--background-fill-primary, #ffffff);\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: 8px;\n    box-shadow: 0 4px 16px rgba(0,0,0,0.12);\n    padding: 8px;\n}\n.rte-color-popup { left: 50px; top: 46px; }\n.rte-color-grid {\n    display: grid;\n    grid-template-columns: repeat(6, 1fr);\n    gap: 4px;\n}\n.rte-color-swatch {\n    width: 26px;\n    height: 26px;\n    border-radius: 4px;\n    border: 2px solid transparent;\n    cursor: pointer;\n    transition: transform 0.1s, border-color 0.15s;\n    padding: 0;\n}\n.rte-color-swatch:hover {\n    transform: scale(1.15);\n    border-color: #3b82f6;\n}\n.rte-link-popup {\n    left: 50%;\n    top: 46px;\n    transform: translateX(-50%);\n    width: 300px;\n    padding: 12px;\n}\n.rte-link-input {\n    width: 100%;\n    padding: 8px 10px;\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    border-radius: 6px;\n    font-size: 13px;\n    box-sizing: border-box;\n    margin-bottom: 8px;\n    outline: none;\n}\n.rte-link-input:focus {\n    border-color: #3b82f6;\n    box-shadow: 0 0 0 2px rgba(59,130,246,0.15);\n}\n.rte-link-actions {\n    display: flex;\n    justify-content: flex-end;\n    gap: 6px;\n}\n.rte-link-actions button {\n    padding: 5px 14px;\n    border-radius: 6px;\n    border: 1px solid var(--border-color-primary, #d1d5db);\n    cursor: pointer;\n    font-size: 13px;\n    background: var(--background-fill-primary, #fff);\n}\n.rte-link-ok {\n    background: #3b82f6 !important;\n    color: #fff !important;\n    border-color: #3b82f6 !important;\n}\n.rte-link-ok:hover { background: #2563eb !important; }\n.rte-emoji-popup {\n    right: 8px;\n    top: 46px;\n    width: 270px;\n    max-height: 220px;\n    overflow-y: auto;\n}\n.rte-emoji-grid {\n    display: grid;\n    grid-template-columns: repeat(8, 1fr);\n    gap: 2px;\n}\n.rte-emoji-item {\n    width: 30px;\n    height: 30px;\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    cursor: pointer;\n    border-radius: 4px;\n    font-size: 18px;\n    border: none;\n    background: transparent;\n    padding: 0;\n}\n.rte-emoji-item:hover {\n    background: var(--background-fill-secondary, #f3f4f6);\n}\n\n/* Editor */\n.rte-editor {\n    min-height: 200px;\n    max-height: 500px;\n    padding: 12px 16px;\n    outline: none;\n    font-size: 15px;\n    line-height: 1.7;\n    color: var(--body-text-color, #1f2937);\n    overflow-y: auto;\n}\n.rte-editor:empty:before {\n    content: attr(data-placeholder);\n    color: var(--body-text-color-subdued, #9ca3af);\n    pointer-events: none;\n}\n.rte-editor blockquote {\n    border-left: 4px solid #3b82f6;\n    margin: 8px 0;\n    padding: 6px 14px;\n    color: #4b5563;\n    background: #f0f5ff;\n    border-radius: 0 6px 6px 0;\n}\n.rte-editor code {\n    background: #f3f4f6;\n    padding: 2px 6px;\n    border-radius: 4px;\n    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;\n    font-size: 0.88em;\n    color: #e11d48;\n}\n.rte-editor pre {\n    background: #1e293b;\n    color: #e2e8f0;\n    padding: 14px 18px;\n    border-radius: 8px;\n    overflow-x: auto;\n    margin: 10px 0;\n    line-height: 1.5;\n}\n.rte-editor pre code {\n    background: transparent;\n    color: inherit;\n    padding: 0;\n    font-size: 0.9em;\n}\n.rte-editor a {\n    color: #3b82f6;\n    text-decoration: underline;\n}\n.rte-editor ul, .rte-editor ol {\n    padding-left: 24px;\n    margin: 6px 0;\n}\n.rte-editor li {\n    margin: 2px 0;\n}\n\"\"\"\n\n        js_on_load = \"\"\"\n(function() {\n    var editor = element.querySelector('.rte-editor');\n    var colorPopup = element.querySelector('#rte-color-popup');\n    var linkPopup = element.querySelector('#rte-link-popup');\n    var emojiPopup = element.querySelector('#rte-emoji-popup');\n    var fgBar = element.querySelector('#rte-fg-bar');\n    var bgBar = element.querySelector('#rte-bg-bar');\n    var linkInput = element.querySelector('.rte-link-input');\n\n    var activeColorAction = null;\n    var savedRange = null;\n\n    /* Placeholder */\n    if (props.placeholder) {\n        editor.setAttribute('data-placeholder', props.placeholder);\n    }\n\n    /* Initial content */\n    if (props.value) {\n        editor.innerHTML = props.value;\n    }\n\n    /* Use CSS-based styling for foreColor so it generates <span style=\"color:...\"> instead of <font> */\n    try { document.execCommand('styleWithCSS', false, true); } catch(e) {}\n\n    /* --- Helpers --- */\n    function saveSelection() {\n        var sel = window.getSelection();\n        if (sel && sel.rangeCount > 0) {\n            savedRange = sel.getRangeAt(0).cloneRange();\n        }\n    }\n    function restoreSelection() {\n        if (savedRange) {\n            var sel = window.getSelection();\n            sel.removeAllRanges();\n            sel.addRange(savedRange);\n        }\n    }\n    function closeAllPopups() {\n        colorPopup.style.display = 'none';\n        linkPopup.style.display = 'none';\n        emojiPopup.style.display = 'none';\n    }\n    function syncValue() {\n        var html = editor.innerHTML;\n        if (html !== props.value) {\n            props.value = html;\n        }\n    }\n    function updateToolbarState() {\n        element.querySelectorAll('.rte-btn[data-cmd]').forEach(function(btn) {\n            try {\n                if (document.queryCommandState(btn.dataset.cmd)) {\n                    btn.classList.add('active');\n                } else {\n                    btn.classList.remove('active');\n                }\n            } catch(e) {}\n        });\n    }\n\n    /* --- Color Palette --- */\n    var COLORS = [\n        '#000000','#434343','#666666','#999999','#b7b7b7','#ffffff',\n        '#e53e3e','#dd6b20','#d69e2e','#38a169','#3182ce','#805ad5',\n        '#ff0000','#ff9900','#ffff00','#00ff00','#00bfff','#0000ff',\n        '#f56565','#ed8936','#ecc94b','#48bb78','#4299e1','#9f7aea'\n    ];\n    var colorGrid = document.createElement('div');\n    colorGrid.className = 'rte-color-grid';\n    COLORS.forEach(function(color) {\n        var swatch = document.createElement('button');\n        swatch.className = 'rte-color-swatch';\n        swatch.style.background = color;\n        if (color === '#ffffff') {\n            swatch.style.borderColor = '#d1d5db';\n        }\n        swatch.setAttribute('data-color', color);\n        swatch.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        swatch.addEventListener('click', function(e) {\n            e.preventDefault();\n            e.stopPropagation();\n            restoreSelection();\n            editor.focus();\n            document.execCommand(activeColorAction, false, color);\n            if (activeColorAction === 'foreColor') {\n                fgBar.style.background = color;\n            } else {\n                bgBar.style.background = color;\n            }\n            closeAllPopups();\n            syncValue();\n        });\n        colorGrid.appendChild(swatch);\n    });\n    colorPopup.appendChild(colorGrid);\n\n    /* --- Emoji Grid --- */\n    var EMOJIS = [\n        '\\\\u{1F600}','\\\\u{1F602}','\\\\u{1F60A}','\\\\u{1F60D}','\\\\u{1F970}','\\\\u{1F60E}','\\\\u{1F914}','\\\\u{1F622}',\n        '\\\\u{1F621}','\\\\u{1F973}','\\\\u{1F631}','\\\\u{1F917}','\\\\u{1F634}','\\\\u{1F92E}','\\\\u{1F910}','\\\\u{1F607}',\n        '\\\\u{1F44D}','\\\\u{1F44E}','\\\\u{1F44F}','\\\\u{1F64C}','\\\\u{1F4AA}','\\\\u{1F91D}','\\\\u270C\\\\uFE0F','\\\\u{1F44B}',\n        '\\\\u2764\\\\uFE0F','\\\\u{1F525}','\\\\u2B50','\\\\u{1F4AF}','\\\\u2705','\\\\u274C','\\\\u26A1','\\\\u{1F389}',\n        '\\\\u{1F4CC}','\\\\u{1F4A1}','\\\\u{1F4CE}','\\\\u{1F517}','\\\\u{1F4DD}','\\\\u{1F4AC}','\\\\u{1F440}','\\\\u{1F3AF}'\n    ];\n    var emojiGrid = document.createElement('div');\n    emojiGrid.className = 'rte-emoji-grid';\n    EMOJIS.forEach(function(emoji) {\n        var btn = document.createElement('button');\n        btn.className = 'rte-emoji-item';\n        btn.textContent = emoji;\n        btn.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        btn.addEventListener('click', function(e) {\n            e.preventDefault();\n            e.stopPropagation();\n            restoreSelection();\n            editor.focus();\n            document.execCommand('insertText', false, emoji);\n            closeAllPopups();\n            syncValue();\n        });\n        emojiGrid.appendChild(btn);\n    });\n    emojiPopup.appendChild(emojiGrid);\n\n    /* --- Close popups on outside click --- */\n    document.addEventListener('mousedown', function(e) {\n        if (!element.contains(e.target)) {\n            closeAllPopups();\n        }\n    });\n\n    /* --- Editor input sync --- */\n    editor.addEventListener('input', function() {\n        syncValue();\n    });\n\n    /* --- Toolbar: execCommand buttons --- */\n    element.querySelectorAll('.rte-btn[data-cmd]').forEach(function(btn) {\n        btn.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        btn.addEventListener('click', function(e) {\n            e.preventDefault();\n            editor.focus();\n            document.execCommand(btn.dataset.cmd, false, null);\n            syncValue();\n            updateToolbarState();\n        });\n    });\n\n    /* --- Toolbar: custom action buttons --- */\n    element.querySelectorAll('.rte-btn[data-action]').forEach(function(btn) {\n        btn.addEventListener('mousedown', function(e) { e.preventDefault(); });\n        btn.addEventListener('click', function(e) {\n            e.preventDefault();\n            var action = btn.dataset.action;\n\n            if (action === 'foreColor' || action === 'hiliteColor') {\n                saveSelection();\n                activeColorAction = action;\n                closeAllPopups();\n                colorPopup.style.display = colorPopup.style.display === 'none' ? 'block' : 'none';\n            } else if (action === 'link') {\n                saveSelection();\n                closeAllPopups();\n                linkInput.value = '';\n                linkPopup.style.display = 'block';\n                linkInput.focus();\n            } else if (action === 'emoji') {\n                saveSelection();\n                closeAllPopups();\n                emojiPopup.style.display = emojiPopup.style.display === 'none' ? 'block' : 'none';\n            } else if (action === 'inlineCode') {\n                var sel = window.getSelection();\n                if (sel && sel.rangeCount > 0 && !sel.isCollapsed) {\n                    var range = sel.getRangeAt(0);\n                    var code = document.createElement('code');\n                    try {\n                        range.surroundContents(code);\n                    } catch(err) {\n                        code.textContent = range.toString();\n                        range.deleteContents();\n                        range.insertNode(code);\n                    }\n                    sel.removeAllRanges();\n                }\n                syncValue();\n            } else if (action === 'codeBlock') {\n                var sel = window.getSelection();\n                if (sel && sel.rangeCount > 0) {\n                    var range = sel.getRangeAt(0);\n                    var pre = document.createElement('pre');\n                    var codeEl = document.createElement('code');\n                    if (sel.isCollapsed) {\n                        codeEl.textContent = '\\\\n';\n                    } else {\n                        codeEl.textContent = range.toString();\n                        range.deleteContents();\n                    }\n                    pre.appendChild(codeEl);\n                    range.insertNode(pre);\n                    var newRange = document.createRange();\n                    newRange.selectNodeContents(codeEl);\n                    newRange.collapse(false);\n                    sel.removeAllRanges();\n                    sel.addRange(newRange);\n                }\n                syncValue();\n            } else if (action === 'blockquote') {\n                editor.focus();\n                document.execCommand('formatBlock', false, 'blockquote');\n                syncValue();\n            }\n        });\n    });\n\n    /* --- Link popup handlers --- */\n    element.querySelector('.rte-link-ok').addEventListener('mousedown', function(e) { e.preventDefault(); });\n    element.querySelector('.rte-link-ok').addEventListener('click', function(e) {\n        e.preventDefault();\n        var url = linkInput.value.trim();\n        if (url) {\n            restoreSelection();\n            editor.focus();\n            document.execCommand('createLink', false, url);\n        }\n        closeAllPopups();\n        syncValue();\n    });\n    element.querySelector('.rte-link-cancel').addEventListener('mousedown', function(e) { e.preventDefault(); });\n    element.querySelector('.rte-link-cancel').addEventListener('click', function(e) {\n        e.preventDefault();\n        closeAllPopups();\n    });\n    linkInput.addEventListener('keydown', function(e) {\n        if (e.key === 'Enter') {\n            e.preventDefault();\n            element.querySelector('.rte-link-ok').click();\n        } else if (e.key === 'Escape') {\n            closeAllPopups();\n        }\n    });\n\n    /* --- Active state tracking --- */\n    editor.addEventListener('keyup', updateToolbarState);\n    editor.addEventListener('mouseup', updateToolbarState);\n\n    /* --- Keyboard shortcut sync --- */\n    editor.addEventListener('keydown', function(e) {\n        if ((e.ctrlKey || e.metaKey) && ['b','i','u'].indexOf(e.key.toLowerCase()) !== -1) {\n            setTimeout(function() {\n                syncValue();\n                updateToolbarState();\n            }, 0);\n        }\n    });\n\n    /* --- Helper: check if cursor is at the end of a node --- */\n    function isAtEndOf(node) {\n        var sel = window.getSelection();\n        if (!sel || sel.rangeCount === 0) return false;\n        var range = sel.getRangeAt(0);\n        var testRange = document.createRange();\n        testRange.selectNodeContents(node);\n        testRange.setStart(range.endContainer, range.endOffset);\n        return testRange.toString().length === 0;\n    }\n\n    /* --- Helper: insert a clean paragraph after a node and move cursor there --- */\n    function insertParagraphAfter(refNode) {\n        var sel = window.getSelection();\n        var p = document.createElement('p');\n        p.innerHTML = '<br>';\n        refNode.parentNode.insertBefore(p, refNode.nextSibling);\n        var newR = document.createRange();\n        newR.setStart(p, 0);\n        newR.collapse(true);\n        sel.removeAllRanges();\n        sel.addRange(newR);\n    }\n\n    /* --- Helper: find ancestor matching condition, up to (but not including) stopAt --- */\n    function findAncestor(node, testFn, stopAt) {\n        var cur = node && node.nodeType === 3 ? node.parentNode : node;\n        while (cur && cur !== stopAt) {\n            if (testFn(cur)) return cur;\n            cur = cur.parentNode;\n        }\n        return null;\n    }\n\n    function isHighlightSpan(el) {\n        return el.nodeName === 'SPAN' && el.style && (el.style.backgroundColor || el.style.color);\n    }\n    function isInlineCode(el) {\n        return el.nodeName === 'CODE' && (!el.parentNode || el.parentNode.nodeName !== 'PRE');\n    }\n\n    /* ======================================================\n       ENTER key: escape inline elements (highlight, code)\n       and block elements (blockquote, pre)\n       ====================================================== */\n    editor.addEventListener('keydown', function(e) {\n        if (e.key !== 'Enter' || e.shiftKey) return;\n        var sel = window.getSelection();\n        if (!sel || sel.rangeCount === 0) return;\n        var range = sel.getRangeAt(0);\n        var node = range.startContainer;\n\n        /* --- 1. Inline: <span style=\"background-color/color\"> or <code> (not inside <pre>) --- */\n        var inlineEl = findAncestor(node, function(el) {\n            return isHighlightSpan(el) || isInlineCode(el);\n        }, editor);\n\n        if (inlineEl && isAtEndOf(inlineEl)) {\n            e.preventDefault();\n            /* Split: move cursor out after the inline element, then let the browser do a normal line break */\n            /* Insert a zero-width space after the inline element to anchor the cursor */\n            var textNode = document.createTextNode('\\\\u200B');\n            if (inlineEl.nextSibling) {\n                inlineEl.parentNode.insertBefore(textNode, inlineEl.nextSibling);\n            } else {\n                inlineEl.parentNode.appendChild(textNode);\n            }\n            var newR = document.createRange();\n            newR.setStartAfter(textNode);\n            newR.collapse(true);\n            sel.removeAllRanges();\n            sel.addRange(newR);\n            /* Now insert a line break at the new position outside the inline element */\n            document.execCommand('insertParagraph', false, null);\n            syncValue();\n            return;\n        }\n\n        /* --- 2. Block: <pre> (double-Enter escape) --- */\n        var preEl = findAncestor(node, function(el) { return el.nodeName === 'PRE'; }, editor);\n        if (preEl) {\n            var codeChild = preEl.querySelector('code') || preEl;\n            var text = codeChild.textContent;\n            if (isAtEndOf(preEl) && (text.endsWith('\\\\n') || text.endsWith('\\\\n\\\\n'))) {\n                e.preventDefault();\n                codeChild.textContent = text.replace(/\\\\n+$/, '');\n                insertParagraphAfter(preEl);\n                syncValue();\n                return;\n            }\n            return; /* Normal Enter inside pre \u2014 don't interfere */\n        }\n\n        /* --- 3. Block: <blockquote> (Enter on empty line escapes) --- */\n        var bqEl = findAncestor(node, function(el) { return el.nodeName === 'BLOCKQUOTE'; }, editor);\n        if (bqEl) {\n            var lastEl = bqEl.lastElementChild || bqEl.lastChild;\n            var isEmpty = false;\n            if (lastEl && lastEl.nodeName === 'BR') isEmpty = true;\n            else if (lastEl && (lastEl.nodeName === 'DIV' || lastEl.nodeName === 'P') &&\n                     (lastEl.innerHTML === '<br>' || lastEl.innerHTML === '' || lastEl.textContent.trim() === '')) isEmpty = true;\n            if (isEmpty && isAtEndOf(bqEl)) {\n                e.preventDefault();\n                lastEl.remove();\n                insertParagraphAfter(bqEl);\n                syncValue();\n                return;\n            }\n        }\n    });\n\n    /* ======================================================\n       ESCAPE key: break out of current block/inline formatting\n       ====================================================== */\n    editor.addEventListener('keydown', function(e) {\n        if (e.key !== 'Escape') return;\n        var sel = window.getSelection();\n        if (!sel || sel.rangeCount === 0) return;\n        var node = sel.anchorNode;\n\n        /* Inline: highlight span or inline code */\n        var inlineEl = findAncestor(node, function(el) {\n            return isHighlightSpan(el) || isInlineCode(el);\n        }, editor);\n        if (inlineEl) {\n            e.preventDefault();\n            /* Move cursor to right after the inline element */\n            var textNode = document.createTextNode('\\\\u200B');\n            if (inlineEl.nextSibling) {\n                inlineEl.parentNode.insertBefore(textNode, inlineEl.nextSibling);\n            } else {\n                inlineEl.parentNode.appendChild(textNode);\n            }\n            var newR = document.createRange();\n            newR.setStartAfter(textNode);\n            newR.collapse(true);\n            sel.removeAllRanges();\n            sel.addRange(newR);\n            syncValue();\n            return;\n        }\n\n        /* Block: blockquote */\n        var bqEl = findAncestor(node, function(el) { return el.nodeName === 'BLOCKQUOTE'; }, editor);\n        if (bqEl) {\n            e.preventDefault();\n            document.execCommand('formatBlock', false, 'p');\n            syncValue();\n            return;\n        }\n\n        /* Block: pre/code block */\n        var preEl = findAncestor(node, function(el) { return el.nodeName === 'PRE'; }, editor);\n        if (preEl) {\n            e.preventDefault();\n            var text = preEl.textContent;\n            var p = document.createElement('p');\n            p.textContent = text;\n            preEl.parentNode.replaceChild(p, preEl);\n            var newR = document.createRange();\n            newR.selectNodeContents(p);\n            newR.collapse(false);\n            sel.removeAllRanges();\n            sel.addRange(newR);\n            syncValue();\n            return;\n        }\n    });\n})();\n\"\"\"\n\n        super().__init__(\n            value=value,\n            label=label,\n            html_template=html_template,\n            css_template=css_template,\n            js_on_load=js_on_load,\n            apply_default_css=False,\n            placeholder=placeholder,\n            container=False,\n            padding=False,\n            **kwargs,\n        )\n\n    def api_info(self):\n        return {\"type\": \"string\", \"description\": \"HTML content of the rich text editor\"}\n",
+  "head": "",
+  "repo_url": "https://github.com/yvrjsharma/html-custom-components"
+}

manifest.json

@@ -239,5 +239,19 @@
       "sidebar"
     ],
     "repo_url": "https://huggingface.co/spaces/elismasilva/gradio_horizontal_bar"
+  },
+  {
+    "id": "rich-textbox",
+    "name": "Rich Textbox",
+    "description": "A rich text editor with a formatting toolbar supporting bold, italic, underline, strikethrough, text color, highlight, ordered/unordered lists, blockquotes, inline code, code blocks, links, and emojis.",
+    "author": "ysharma",
+    "tags": [
+      "input",
+      "textbox",
+      "rich-text",
+      "editor",
+      "formatting"
+    ],
+    "repo_url": "https://github.com/yvrjsharma/html-custom-components"
   }
 ]