858 lines
24 KiB
TypeScript
858 lines
24 KiB
TypeScript
import * as React from 'react';
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import { createPortal } from 'react-dom';
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import {
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CompositeDecorator,
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ContentBlock,
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ContentState,
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DraftEditorCommand,
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DraftHandleValue,
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Editor,
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EditorChangeType,
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EditorState,
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getDefaultKeyBinding,
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Modifier,
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SelectionState,
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} from 'draft-js';
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import Measure, { ContentRect } from 'react-measure';
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import { Manager, Popper, Reference } from 'react-popper';
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import { get, head, noop, trimEnd } from 'lodash';
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import classNames from 'classnames';
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import emojiRegex from 'emoji-regex';
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import { Emoji } from './emoji/Emoji';
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import { EmojiPickDataType } from './emoji/EmojiPicker';
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import { convertShortName, EmojiData, search } from './emoji/lib';
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import { LocalizerType } from '../types/Util';
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import { createRefMerger } from './_util';
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const MAX_LENGTH = 64 * 1024;
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const colonsRegex = /(?:^|\s):[a-z0-9-_+]+:?/gi;
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const triggerEmojiRegex = /^(?:[-+]\d|[a-z]{2})/i;
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export type Props = {
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readonly i18n: LocalizerType;
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readonly disabled?: boolean;
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readonly large?: boolean;
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readonly editorRef?: React.RefObject<Editor>;
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readonly inputApi?: React.MutableRefObject<InputApi | undefined>;
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readonly skinTone?: EmojiPickDataType['skinTone'];
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readonly startingText?: string;
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onDirtyChange?(dirty: boolean): unknown;
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onEditorStateChange?(messageText: string, caretLocation: number): unknown;
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onEditorSizeChange?(rect: ContentRect): unknown;
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onTextTooLong(): unknown;
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onPickEmoji(o: EmojiPickDataType): unknown;
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onSubmit(message: string): unknown;
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getQuotedMessage(): unknown;
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clearQuotedMessage(): unknown;
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};
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export type InputApi = {
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insertEmoji: (e: EmojiPickDataType) => void;
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reset: () => void;
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resetEmojiResults: () => void;
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submit: () => void;
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};
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export type CompositionInputEditorCommand =
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| DraftEditorCommand
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| ('enter-emoji' | 'next-emoji' | 'prev-emoji' | 'submit');
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function getTrimmedMatchAtIndex(str: string, index: number, pattern: RegExp) {
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let match;
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// Reset regex state
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pattern.exec('');
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// eslint-disable-next-line no-cond-assign
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while ((match = pattern.exec(str))) {
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const matchStr = match.toString();
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const start = match.index + (matchStr.length - matchStr.trimLeft().length);
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const end = match.index + matchStr.trimRight().length;
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if (index >= start && index <= end) {
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return match.toString();
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}
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}
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return null;
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}
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function getLengthOfSelectedText(state: EditorState): number {
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const currentSelection = state.getSelection();
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let length = 0;
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const currentContent = state.getCurrentContent();
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const startKey = currentSelection.getStartKey();
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const endKey = currentSelection.getEndKey();
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const startBlock = currentContent.getBlockForKey(startKey);
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const isStartAndEndBlockAreTheSame = startKey === endKey;
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const startBlockTextLength = startBlock.getLength();
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const startSelectedTextLength =
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startBlockTextLength - currentSelection.getStartOffset();
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const endSelectedTextLength = currentSelection.getEndOffset();
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const keyAfterEnd = currentContent.getKeyAfter(endKey);
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if (isStartAndEndBlockAreTheSame) {
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length +=
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currentSelection.getEndOffset() - currentSelection.getStartOffset();
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} else {
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let currentKey = startKey;
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while (currentKey && currentKey !== keyAfterEnd) {
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if (currentKey === startKey) {
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length += startSelectedTextLength + 1;
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} else if (currentKey === endKey) {
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length += endSelectedTextLength;
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} else {
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length += currentContent.getBlockForKey(currentKey).getLength() + 1;
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}
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currentKey = currentContent.getKeyAfter(currentKey);
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}
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}
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return length;
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}
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function getWordAtIndex(
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str: string,
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index: number
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): { start: number; end: number; word: string } {
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const start = str
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.slice(0, index + 1)
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.replace(/\s+$/, '')
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.search(/\S+$/);
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let end =
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str
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.slice(index)
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.split('')
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.findIndex(c => /[^a-z0-9-_]/i.test(c) || c === ':') + index;
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const endChar = str[end];
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if (/\w|:/.test(endChar)) {
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end += 1;
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}
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const word = str.slice(start, end);
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if (word === ':' && index + 1 <= str.length) {
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return getWordAtIndex(str, index + 1);
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}
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return {
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start,
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end,
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word,
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};
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}
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const compositeDecorator = new CompositeDecorator([
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{
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strategy: (block, cb) => {
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const pat = emojiRegex();
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const text = block.getText();
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let match;
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let index;
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// eslint-disable-next-line no-cond-assign
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while ((match = pat.exec(text))) {
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index = match.index;
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cb(index, index + match[0].length);
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}
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},
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component: ({
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children,
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contentState,
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entityKey,
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}: {
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children: React.ReactNode;
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contentState: ContentState;
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entityKey: string;
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}) =>
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entityKey ? (
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<Emoji
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shortName={contentState.getEntity(entityKey).getData().shortName}
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skinTone={contentState.getEntity(entityKey).getData().skinTone}
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inline
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size={20}
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>
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{children}
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</Emoji>
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) : (
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children
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),
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},
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]);
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const getInitialEditorState = (startingText?: string) => {
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if (!startingText) {
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return EditorState.createEmpty(compositeDecorator);
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}
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const end = startingText.length;
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const state = EditorState.createWithContent(
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ContentState.createFromText(startingText),
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compositeDecorator
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);
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const selection = state.getSelection();
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const selectionAtEnd = selection.merge({
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anchorOffset: end,
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focusOffset: end,
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}) as SelectionState;
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return EditorState.forceSelection(state, selectionAtEnd);
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};
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export const CompositionInput = ({
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i18n,
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disabled,
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large,
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editorRef,
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inputApi,
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onDirtyChange,
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onEditorStateChange,
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onEditorSizeChange,
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onTextTooLong,
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onPickEmoji,
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onSubmit,
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skinTone,
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startingText,
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getQuotedMessage,
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clearQuotedMessage,
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}: Props): JSX.Element => {
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const [editorRenderState, setEditorRenderState] = React.useState(
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getInitialEditorState(startingText)
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);
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const [searchText, setSearchText] = React.useState<string>('');
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const [emojiResults, setEmojiResults] = React.useState<Array<EmojiData>>([]);
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const [emojiResultsIndex, setEmojiResultsIndex] = React.useState<number>(0);
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const [editorWidth, setEditorWidth] = React.useState<number>(0);
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const [popperRoot, setPopperRoot] = React.useState<HTMLDivElement | null>(
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null
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);
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const dirtyRef = React.useRef(false);
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const focusRef = React.useRef(false);
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const editorStateRef = React.useRef<EditorState>(editorRenderState);
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const rootElRef = React.useRef<HTMLDivElement>();
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const rootElRefMerger = React.useMemo(createRefMerger, []);
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// This function sets editorState and also keeps a reference to the newly set
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// state so we can reference the state in effects and callbacks without
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// excessive cleanup
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const setAndTrackEditorState = React.useCallback(
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(newState: EditorState) => {
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setEditorRenderState(newState);
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editorStateRef.current = newState;
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},
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[setEditorRenderState, editorStateRef]
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);
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const updateExternalStateListeners = React.useCallback(
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(newState: EditorState) => {
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const plainText = newState
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.getCurrentContent()
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.getPlainText()
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.trim();
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const cursorBlockKey = newState.getSelection().getStartKey();
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const cursorBlockIndex = editorStateRef.current
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.getCurrentContent()
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.getBlockMap()
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.keySeq()
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.findIndex(key => key === cursorBlockKey);
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const caretLocation = newState
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.getCurrentContent()
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.getBlockMap()
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.valueSeq()
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.toArray()
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.reduce((sum: number, block: ContentBlock, currentIndex: number) => {
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if (currentIndex < cursorBlockIndex) {
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return sum + block.getText().length + 1; // +1 for newline
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}
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if (currentIndex === cursorBlockIndex) {
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return sum + newState.getSelection().getStartOffset();
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}
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return sum;
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}, 0);
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if (onDirtyChange) {
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const isDirty = !!plainText;
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if (dirtyRef.current !== isDirty) {
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dirtyRef.current = isDirty;
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onDirtyChange(isDirty);
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}
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}
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if (onEditorStateChange) {
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onEditorStateChange(plainText, caretLocation);
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}
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},
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[onDirtyChange, onEditorStateChange, editorStateRef]
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);
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const resetEmojiResults = React.useCallback(() => {
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setEmojiResults([]);
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setEmojiResultsIndex(0);
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setSearchText('');
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}, [setEmojiResults, setEmojiResultsIndex, setSearchText]);
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const getWordAtCaret = React.useCallback((state = editorStateRef.current) => {
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const selection = state.getSelection();
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const index = selection.getAnchorOffset();
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return getWordAtIndex(
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state
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.getCurrentContent()
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.getBlockForKey(selection.getAnchorKey())
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.getText(),
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index
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);
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}, []);
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const selectEmojiResult = React.useCallback(
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(dir: 'next' | 'prev', e?: React.KeyboardEvent) => {
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if (emojiResults.length > 0) {
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if (e) {
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e.preventDefault();
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}
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if (dir === 'next') {
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setEmojiResultsIndex(index => {
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const next = index + 1;
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if (next >= emojiResults.length) {
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return 0;
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}
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return next;
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});
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}
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if (dir === 'prev') {
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setEmojiResultsIndex(index => {
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const next = index - 1;
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if (next < 0) {
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return emojiResults.length - 1;
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}
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return next;
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});
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}
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}
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},
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[emojiResults]
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);
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const submit = React.useCallback(() => {
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const { current: state } = editorStateRef;
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const trimmedText = state
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.getCurrentContent()
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.getPlainText()
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.trim();
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onSubmit(trimmedText);
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}, [editorStateRef, onSubmit]);
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const handleEditorCommand = React.useCallback(
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(
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command: CompositionInputEditorCommand,
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state: EditorState,
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emojiOverride?: EmojiData
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): DraftHandleValue => {
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if (command === 'enter-emoji') {
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const { short_name: shortName } =
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emojiOverride || emojiResults[emojiResultsIndex];
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const content = state.getCurrentContent();
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const selection = state.getSelection();
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const word = getWordAtCaret(state);
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const emojiContent = convertShortName(shortName, skinTone);
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const emojiEntityKey = content
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.createEntity('emoji', 'IMMUTABLE', {
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shortName,
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skinTone,
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})
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.getLastCreatedEntityKey();
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const replaceSelection = selection.merge({
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anchorOffset: word.start,
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focusOffset: word.end,
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});
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let newContent = Modifier.replaceText(
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content,
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replaceSelection as SelectionState,
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emojiContent,
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undefined,
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emojiEntityKey
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);
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const afterSelection = newContent.getSelectionAfter();
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if (
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afterSelection.getAnchorOffset() ===
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newContent.getBlockForKey(afterSelection.getAnchorKey()).getLength()
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) {
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newContent = Modifier.insertText(newContent, afterSelection, ' ');
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}
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const newState = EditorState.push(
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state,
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newContent,
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'insert-emoji' as EditorChangeType
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);
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setAndTrackEditorState(newState);
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resetEmojiResults();
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onPickEmoji({ shortName });
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return 'handled';
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}
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if (command === 'submit') {
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submit();
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return 'handled';
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}
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if (command === 'next-emoji') {
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selectEmojiResult('next');
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}
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if (command === 'prev-emoji') {
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selectEmojiResult('prev');
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}
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return 'not-handled';
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},
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// Missing `onPickEmoji`, which is a prop, so not clearly memoized
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// eslint-disable-next-line react-hooks/exhaustive-deps
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[
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emojiResults,
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emojiResultsIndex,
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getWordAtCaret,
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resetEmojiResults,
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selectEmojiResult,
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setAndTrackEditorState,
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skinTone,
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submit,
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]
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);
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const handleEditorStateChange = React.useCallback(
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(newState: EditorState) => {
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// Does the current position have any emojiable text?
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const selection = newState.getSelection();
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const caretLocation = selection.getStartOffset();
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const content = newState
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.getCurrentContent()
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.getBlockForKey(selection.getAnchorKey())
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.getText();
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const match = getTrimmedMatchAtIndex(content, caretLocation, colonsRegex);
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// Update the state to indicate emojiable text at the current position.
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const newSearchText = match ? match.trim().substr(1) : '';
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if (newSearchText.endsWith(':')) {
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const bareText = trimEnd(newSearchText, ':');
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const emoji = head(search(bareText));
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if (emoji && bareText === emoji.short_name) {
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handleEditorCommand('enter-emoji', newState, emoji);
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// Prevent inserted colon from persisting to state
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return;
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}
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resetEmojiResults();
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} else if (triggerEmojiRegex.test(newSearchText) && focusRef.current) {
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setEmojiResults(search(newSearchText, 10));
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setSearchText(newSearchText);
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setEmojiResultsIndex(0);
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} else {
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resetEmojiResults();
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}
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// Finally, update the editor state
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setAndTrackEditorState(newState);
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updateExternalStateListeners(newState);
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},
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[
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focusRef,
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handleEditorCommand,
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resetEmojiResults,
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setAndTrackEditorState,
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setSearchText,
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setEmojiResults,
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updateExternalStateListeners,
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]
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);
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const handleBeforeInput = React.useCallback((): DraftHandleValue => {
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if (!editorStateRef.current) {
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return 'not-handled';
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}
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const editorState = editorStateRef.current;
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const plainText = editorState.getCurrentContent().getPlainText();
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const selectedTextLength = getLengthOfSelectedText(editorState);
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if (plainText.length - selectedTextLength > MAX_LENGTH - 1) {
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onTextTooLong();
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return 'handled';
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}
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return 'not-handled';
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}, [onTextTooLong, editorStateRef]);
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const handlePastedText = React.useCallback(
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(pastedText: string): DraftHandleValue => {
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if (!editorStateRef.current) {
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return 'not-handled';
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}
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const editorState = editorStateRef.current;
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const plainText = editorState.getCurrentContent().getPlainText();
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const selectedTextLength = getLengthOfSelectedText(editorState);
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if (
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plainText.length + pastedText.length - selectedTextLength >
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MAX_LENGTH
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) {
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onTextTooLong();
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return 'handled';
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}
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return 'not-handled';
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},
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[onTextTooLong, editorStateRef]
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);
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const resetEditorState = React.useCallback(() => {
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const newEmptyState = EditorState.createEmpty(compositeDecorator);
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setAndTrackEditorState(newEmptyState);
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resetEmojiResults();
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}, [resetEmojiResults, setAndTrackEditorState]);
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const handleEditorSizeChange = React.useCallback(
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(rect: ContentRect) => {
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if (rect.bounds) {
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setEditorWidth(rect.bounds.width);
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if (onEditorSizeChange) {
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onEditorSizeChange(rect);
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}
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}
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},
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[onEditorSizeChange, setEditorWidth]
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);
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const handleEditorArrowKey = React.useCallback(
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(e: React.KeyboardEvent) => {
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if (e.key === 'ArrowUp') {
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selectEmojiResult('prev', e);
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}
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if (e.key === 'ArrowDown') {
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selectEmojiResult('next', e);
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}
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},
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[selectEmojiResult]
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);
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const handleEscapeKey = React.useCallback(
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(e: React.KeyboardEvent) => {
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if (emojiResults.length > 0) {
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e.preventDefault();
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resetEmojiResults();
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} else if (getQuotedMessage()) {
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clearQuotedMessage();
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}
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},
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[clearQuotedMessage, emojiResults, getQuotedMessage, resetEmojiResults]
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);
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|
|
const insertEmoji = React.useCallback(
|
|
(e: EmojiPickDataType, replaceWord = false) => {
|
|
const { current: state } = editorStateRef;
|
|
const selection = state.getSelection();
|
|
const oldContent = state.getCurrentContent();
|
|
const emojiContent = convertShortName(e.shortName, e.skinTone);
|
|
const emojiEntityKey = oldContent
|
|
.createEntity('emoji', 'IMMUTABLE', {
|
|
shortName: e.shortName,
|
|
skinTone: e.skinTone,
|
|
})
|
|
.getLastCreatedEntityKey();
|
|
const word = getWordAtCaret();
|
|
|
|
let newContent = Modifier.replaceText(
|
|
oldContent,
|
|
replaceWord
|
|
? (selection.merge({
|
|
anchorOffset: word.start,
|
|
focusOffset: word.end,
|
|
}) as SelectionState)
|
|
: selection,
|
|
emojiContent,
|
|
undefined,
|
|
emojiEntityKey
|
|
);
|
|
|
|
const afterSelection = newContent.getSelectionAfter();
|
|
|
|
if (
|
|
afterSelection.getAnchorOffset() ===
|
|
newContent.getBlockForKey(afterSelection.getAnchorKey()).getLength()
|
|
) {
|
|
newContent = Modifier.insertText(newContent, afterSelection, ' ');
|
|
}
|
|
|
|
const newState = EditorState.push(
|
|
state,
|
|
newContent,
|
|
'insert-emoji' as EditorChangeType
|
|
);
|
|
setAndTrackEditorState(newState);
|
|
resetEmojiResults();
|
|
},
|
|
[editorStateRef, getWordAtCaret, setAndTrackEditorState, resetEmojiResults]
|
|
);
|
|
|
|
const onTab = React.useCallback(
|
|
(e: React.KeyboardEvent) => {
|
|
if (e.shiftKey || emojiResults.length === 0) {
|
|
return;
|
|
}
|
|
|
|
e.preventDefault();
|
|
handleEditorCommand('enter-emoji', editorStateRef.current);
|
|
},
|
|
[emojiResults, editorStateRef, handleEditorCommand]
|
|
);
|
|
|
|
const editorKeybindingFn = React.useCallback(
|
|
(e: React.KeyboardEvent): CompositionInputEditorCommand | null => {
|
|
const commandKey = get(window, 'platform') === 'darwin' && e.metaKey;
|
|
const controlKey = get(window, 'platform') !== 'darwin' && e.ctrlKey;
|
|
|
|
if (e.key === 'Enter' && emojiResults.length > 0) {
|
|
e.preventDefault();
|
|
|
|
return 'enter-emoji';
|
|
}
|
|
|
|
if (e.key === 'Enter' && !e.shiftKey && !e.altKey) {
|
|
if (large && !(controlKey || commandKey)) {
|
|
return getDefaultKeyBinding(e);
|
|
}
|
|
|
|
e.preventDefault();
|
|
|
|
return 'submit';
|
|
}
|
|
|
|
if (e.key === 'n' && e.ctrlKey) {
|
|
e.preventDefault();
|
|
|
|
return 'next-emoji';
|
|
}
|
|
|
|
if (e.key === 'p' && e.ctrlKey) {
|
|
e.preventDefault();
|
|
|
|
return 'prev-emoji';
|
|
}
|
|
|
|
// Get rid of default draft.js ctrl-m binding which interferes with Windows minimize
|
|
if (e.key === 'm' && e.ctrlKey) {
|
|
return null;
|
|
}
|
|
|
|
if (get(window, 'platform') === 'linux') {
|
|
// Get rid of default draft.js shift-del binding which interferes with Linux cut
|
|
if (e.key === 'Delete' && e.shiftKey) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// Get rid of Ctrl-Shift-M, which by default adds a newline
|
|
if ((e.key === 'm' || e.key === 'M') && e.shiftKey && e.ctrlKey) {
|
|
e.preventDefault();
|
|
|
|
return null;
|
|
}
|
|
|
|
// Get rid of Ctrl-/, which on GNOME is bound to 'select all'
|
|
if (e.key === '/' && !e.shiftKey && e.ctrlKey) {
|
|
e.preventDefault();
|
|
|
|
return null;
|
|
}
|
|
|
|
return getDefaultKeyBinding(e);
|
|
},
|
|
[emojiResults, large]
|
|
);
|
|
|
|
// Create popper root
|
|
React.useEffect(() => {
|
|
if (emojiResults.length > 0) {
|
|
const root = document.createElement('div');
|
|
setPopperRoot(root);
|
|
document.body.appendChild(root);
|
|
|
|
return () => {
|
|
document.body.removeChild(root);
|
|
setPopperRoot(null);
|
|
};
|
|
}
|
|
|
|
return noop;
|
|
}, [setPopperRoot, emojiResults]);
|
|
|
|
const onFocus = React.useCallback(() => {
|
|
focusRef.current = true;
|
|
}, [focusRef]);
|
|
|
|
const onBlur = React.useCallback(() => {
|
|
focusRef.current = false;
|
|
}, [focusRef]);
|
|
|
|
// Manage focus
|
|
// Chromium places the editor caret at the beginning of contenteditable divs on focus
|
|
// Here, we force the last known selection on focusin
|
|
// (doing this with onFocus wasn't behaving properly)
|
|
// This needs to be done in an effect because React doesn't support focus{In,Out}
|
|
// https://github.com/facebook/react/issues/6410
|
|
React.useLayoutEffect(() => {
|
|
const { current: rootEl } = rootElRef;
|
|
|
|
if (rootEl) {
|
|
const onFocusIn = () => {
|
|
const { current: oldState } = editorStateRef;
|
|
// Force selection to be old selection
|
|
setAndTrackEditorState(
|
|
EditorState.forceSelection(oldState, oldState.getSelection())
|
|
);
|
|
};
|
|
|
|
rootEl.addEventListener('focusin', onFocusIn);
|
|
|
|
return () => {
|
|
rootEl.removeEventListener('focusin', onFocusIn);
|
|
};
|
|
}
|
|
|
|
return noop;
|
|
}, [editorStateRef, rootElRef, setAndTrackEditorState]);
|
|
|
|
if (inputApi) {
|
|
// Using a React.MutableRefObject, so we need to reassign this prop.
|
|
// eslint-disable-next-line no-param-reassign
|
|
inputApi.current = {
|
|
reset: resetEditorState,
|
|
submit,
|
|
insertEmoji,
|
|
resetEmojiResults,
|
|
};
|
|
}
|
|
|
|
return (
|
|
<Manager>
|
|
<Reference>
|
|
{({ ref: popperRef }) => (
|
|
<Measure bounds onResize={handleEditorSizeChange}>
|
|
{({ measureRef }) => (
|
|
<div
|
|
className="module-composition-input__input"
|
|
ref={rootElRefMerger(popperRef, measureRef, rootElRef)}
|
|
>
|
|
<div
|
|
className={classNames(
|
|
'module-composition-input__input__scroller',
|
|
large
|
|
? 'module-composition-input__input__scroller--large'
|
|
: null
|
|
)}
|
|
>
|
|
<Editor
|
|
ref={editorRef}
|
|
editorState={editorRenderState}
|
|
onChange={handleEditorStateChange}
|
|
placeholder={i18n('sendMessage')}
|
|
onUpArrow={handleEditorArrowKey}
|
|
onDownArrow={handleEditorArrowKey}
|
|
onEscape={handleEscapeKey}
|
|
onTab={onTab}
|
|
handleKeyCommand={handleEditorCommand}
|
|
handleBeforeInput={handleBeforeInput}
|
|
handlePastedText={handlePastedText}
|
|
keyBindingFn={editorKeybindingFn}
|
|
spellCheck
|
|
stripPastedStyles
|
|
readOnly={disabled}
|
|
onFocus={onFocus}
|
|
onBlur={onBlur}
|
|
/>
|
|
</div>
|
|
</div>
|
|
)}
|
|
</Measure>
|
|
)}
|
|
</Reference>
|
|
{emojiResults.length > 0 && popperRoot
|
|
? createPortal(
|
|
<Popper placement="top" key={searchText}>
|
|
{({ ref, style }) => (
|
|
<div
|
|
ref={ref}
|
|
className="module-composition-input__emoji-suggestions"
|
|
style={{
|
|
...style,
|
|
width: editorWidth,
|
|
}}
|
|
role="listbox"
|
|
aria-expanded
|
|
aria-activedescendant={`emoji-result--${emojiResults[emojiResultsIndex].short_name}`}
|
|
tabIndex={0}
|
|
>
|
|
{emojiResults.map((emoji, index) => (
|
|
<button
|
|
type="button"
|
|
key={emoji.short_name}
|
|
id={`emoji-result--${emoji.short_name}`}
|
|
role="option button"
|
|
aria-selected={emojiResultsIndex === index}
|
|
onMouseDown={() => {
|
|
insertEmoji(
|
|
{ shortName: emoji.short_name, skinTone },
|
|
true
|
|
);
|
|
onPickEmoji({ shortName: emoji.short_name });
|
|
}}
|
|
className={classNames(
|
|
'module-composition-input__emoji-suggestions__row',
|
|
emojiResultsIndex === index
|
|
? 'module-composition-input__emoji-suggestions__row--selected'
|
|
: null
|
|
)}
|
|
>
|
|
<Emoji
|
|
shortName={emoji.short_name}
|
|
size={16}
|
|
skinTone={skinTone}
|
|
/>
|
|
<div className="module-composition-input__emoji-suggestions__row__short-name">
|
|
:{emoji.short_name}:
|
|
</div>
|
|
</button>
|
|
))}
|
|
</div>
|
|
)}
|
|
</Popper>,
|
|
popperRoot
|
|
)
|
|
: null}
|
|
</Manager>
|
|
);
|
|
};
|