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import { isHotkey } from 'is-hotkey'
import { IS_APPLE } from './environment'
/**
* Hotkey mappings for each platform.
*/
const HOTKEYS = {
bold: 'mod+b',
compose: ['down', 'left', 'right', 'up', 'backspace', 'enter'],
moveBackward: 'left',
moveForward: 'right',
moveWordBackward: 'ctrl+left',
moveWordForward: 'ctrl+right',
deleteBackward: 'shift?+backspace',
deleteForward: 'shift?+delete',
extendBackward: 'shift+left',
extendForward: 'shift+right',
italic: 'mod+i',
insertSoftBreak: 'shift+enter',
splitBlock: 'enter',
undo: 'mod+z',
}
const APPLE_HOTKEYS = {
moveLineBackward: 'opt+up',
moveLineForward: 'opt+down',
moveWordBackward: 'opt+left',
moveWordForward: 'opt+right',
deleteBackward: ['ctrl+backspace', 'ctrl+h'],
deleteForward: ['ctrl+delete', 'ctrl+d'],
deleteLineBackward: 'cmd+shift?+backspace',
deleteLineForward: ['cmd+shift?+delete', 'ctrl+k'],
deleteWordBackward: 'opt+shift?+backspace',
deleteWordForward: 'opt+shift?+delete',
extendLineBackward: 'opt+shift+up',
extendLineForward: 'opt+shift+down',
redo: 'cmd+shift+z',
transposeCharacter: 'ctrl+t',
}
const WINDOWS_HOTKEYS = {
deleteWordBackward: 'ctrl+shift?+backspace',
deleteWordForward: 'ctrl+shift?+delete',
redo: ['ctrl+y', 'ctrl+shift+z'],
}
/**
* Create a platform-aware hotkey checker.
*/
const create = (key: string) => {
const generic = HOTKEYS[<keyof typeof HOTKEYS>key]
const apple = APPLE_HOTKEYS[<keyof typeof APPLE_HOTKEYS>key]
const windows = WINDOWS_HOTKEYS[<keyof typeof WINDOWS_HOTKEYS>key]
const isGeneric = generic && isHotkey(generic)
const isApple = apple && isHotkey(apple)
const isWindows = windows && isHotkey(windows)
return (event: KeyboardEvent) => {
if (isGeneric && isGeneric(event)) return true
if (IS_APPLE && isApple && isApple(event)) return true
if (!IS_APPLE && isWindows && isWindows(event)) return true
return false
}
}
/**
* Hotkeys.
*/
export default {
isBold: create('bold'),
isCompose: create('compose'),
isMoveBackward: create('moveBackward'),
isMoveForward: create('moveForward'),
isDeleteBackward: create('deleteBackward'),
isDeleteForward: create('deleteForward'),
isDeleteLineBackward: create('deleteLineBackward'),
isDeleteLineForward: create('deleteLineForward'),
isDeleteWordBackward: create('deleteWordBackward'),
isDeleteWordForward: create('deleteWordForward'),
isExtendBackward: create('extendBackward'),
isExtendForward: create('extendForward'),
isExtendLineBackward: create('extendLineBackward'),
isExtendLineForward: create('extendLineForward'),
isItalic: create('italic'),
isMoveLineBackward: create('moveLineBackward'),
isMoveLineForward: create('moveLineForward'),
isMoveWordBackward: create('moveWordBackward'),
isMoveWordForward: create('moveWordForward'),
isRedo: create('redo'),
isSoftBreak: create('insertSoftBreak'),
isSplitBlock: create('splitBlock'),
isTransposeCharacter: create('transposeCharacter'),
isUndo: create('undo'),
}
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