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Merge pull request #59 from DiggesT/feature/emojis
Emojis picker plugin
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,201 @@ | ||
| /** | ||
| * Copyright (c) Meta Platforms, Inc. and affiliates. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| * | ||
| */ | ||
|
|
||
| import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext'; | ||
| import { | ||
| LexicalTypeaheadMenuPlugin, | ||
| MenuOption, | ||
| useBasicTypeaheadTriggerMatch, | ||
| } from '@lexical/react/LexicalTypeaheadMenuPlugin'; | ||
| import { | ||
| $createTextNode, | ||
| $getSelection, | ||
| $isRangeSelection, | ||
| TextNode, | ||
| } from 'lexical'; | ||
| import * as React from 'react'; | ||
| import { useCallback, useEffect, useMemo, useState } from 'react'; | ||
| import * as ReactDOM from 'react-dom'; | ||
|
|
||
| class EmojiOption extends MenuOption { | ||
| title: string; | ||
| emoji: string; | ||
| keywords: Array<string>; | ||
|
|
||
| constructor( | ||
| title: string, | ||
| emoji: string, | ||
| options: { | ||
| keywords?: Array<string>; | ||
| } | ||
| ) { | ||
| super(title); | ||
| this.title = title; | ||
| this.emoji = emoji; | ||
| this.keywords = options.keywords || []; | ||
| } | ||
| } | ||
| function EmojiMenuItem({ | ||
| index, | ||
| isSelected, | ||
| onClick, | ||
| onMouseEnter, | ||
| option, | ||
| }: { | ||
| index: number; | ||
| isSelected: boolean; | ||
| onClick: () => void; | ||
| onMouseEnter: () => void; | ||
| option: EmojiOption; | ||
| }) { | ||
| let className = 'item'; | ||
| if (isSelected) { | ||
| className += ' selected'; | ||
| } | ||
| return ( | ||
| <li | ||
| key={option.key} | ||
| tabIndex={-1} | ||
| className={className} | ||
| ref={option.setRefElement} | ||
| role="option" | ||
| aria-selected={isSelected} | ||
| id={'typeahead-item-' + index} | ||
| onMouseEnter={onMouseEnter} | ||
| onClick={onClick} | ||
| > | ||
| <span className="text"> | ||
| {option.emoji} {option.title} | ||
| </span> | ||
| </li> | ||
| ); | ||
| } | ||
|
|
||
| type Emoji = { | ||
| emoji: string; | ||
| description: string; | ||
| category: string; | ||
| aliases: Array<string>; | ||
| tags: Array<string>; | ||
| unicode_version: string; | ||
| ios_version: string; | ||
| skin_tones?: boolean; | ||
| }; | ||
|
|
||
| const MAX_EMOJI_SUGGESTION_COUNT = 10; | ||
|
|
||
| export default function EmojiPickerPlugin() { | ||
| const [editor] = useLexicalComposerContext(); | ||
| const [queryString, setQueryString] = useState<string | null>(null); | ||
| const [emojis, setEmojis] = useState<Array<Emoji>>([]); | ||
|
|
||
| useEffect(() => { | ||
| // @ts-ignore | ||
| import('../utils/emoji-list.ts').then((file) => setEmojis(file.default)); | ||
| }, []); | ||
|
|
||
| const emojiOptions = useMemo( | ||
| () => | ||
| emojis != null | ||
| ? emojis.map( | ||
| ({ emoji, aliases, tags }) => | ||
| new EmojiOption(aliases[0], emoji, { | ||
| keywords: [...aliases, ...tags], | ||
| }) | ||
| ) | ||
| : [], | ||
| [emojis] | ||
| ); | ||
|
|
||
| const checkForTriggerMatch = useBasicTypeaheadTriggerMatch(':', { | ||
| minLength: 0, | ||
| }); | ||
|
|
||
| const options: Array<EmojiOption> = useMemo(() => { | ||
| return emojiOptions | ||
| .filter((option: EmojiOption) => { | ||
| return queryString != null | ||
| ? new RegExp(queryString, 'gi').exec(option.title) || | ||
| option.keywords != null | ||
| ? option.keywords.some((keyword: string) => | ||
| new RegExp(queryString, 'gi').exec(keyword) | ||
| ) | ||
| : false | ||
| : emojiOptions; | ||
| }) | ||
| .slice(0, MAX_EMOJI_SUGGESTION_COUNT); | ||
| }, [emojiOptions, queryString]); | ||
|
|
||
| const onSelectOption = useCallback( | ||
| ( | ||
| selectedOption: EmojiOption, | ||
| nodeToRemove: TextNode | null, | ||
| closeMenu: () => void | ||
| ) => { | ||
| editor.update(() => { | ||
| const selection = $getSelection(); | ||
|
|
||
| if (!$isRangeSelection(selection) || selectedOption == null) { | ||
| return; | ||
| } | ||
|
|
||
| if (nodeToRemove) { | ||
| nodeToRemove.remove(); | ||
| } | ||
|
|
||
| selection.insertNodes([$createTextNode(selectedOption.emoji)]); | ||
|
|
||
| closeMenu(); | ||
| }); | ||
| }, | ||
| [editor] | ||
| ); | ||
|
|
||
| return ( | ||
| <LexicalTypeaheadMenuPlugin | ||
| onQueryChange={setQueryString} | ||
| onSelectOption={onSelectOption} | ||
| triggerFn={checkForTriggerMatch} | ||
| options={options} | ||
| menuRenderFn={( | ||
| anchorElementRef, | ||
| { selectedIndex, selectOptionAndCleanUp, setHighlightedIndex } | ||
| ) => { | ||
| if (anchorElementRef.current == null || options.length === 0) { | ||
| return null; | ||
| } | ||
|
|
||
| return anchorElementRef.current && options.length | ||
| ? ReactDOM.createPortal( | ||
| <div className="typeahead-popover emoji-menu"> | ||
| <ul> | ||
| {options.map((option: EmojiOption, index) => ( | ||
| <div key={option.key}> | ||
| <EmojiMenuItem | ||
| index={index} | ||
| isSelected={selectedIndex === index} | ||
| onClick={() => { | ||
| setHighlightedIndex(index); | ||
| selectOptionAndCleanUp(option); | ||
| }} | ||
| onMouseEnter={() => { | ||
| setHighlightedIndex(index); | ||
| }} | ||
| option={option} | ||
| /> | ||
| </div> | ||
| ))} | ||
| </ul> | ||
| </div>, | ||
| anchorElementRef.current | ||
| ) | ||
| : null; | ||
| }} | ||
| /> | ||
| ); | ||
| } |
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