element-web-Github/src/components/views/rooms/MessageComposerInput.js

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/*
Copyright 2015, 2016 OpenMarket Ltd
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Copyright 2017 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
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import React from 'react';
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import ReactDOM from 'react-dom';
import PropTypes from 'prop-types';
import type SyntheticKeyboardEvent from 'react/lib/SyntheticKeyboardEvent';
import { Editor } from 'slate-react';
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import { getEventTransfer } from 'slate-react';
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import { Value, Document, Event, Block, Inline, Text, Range, Node } from 'slate';
import Html from 'slate-html-serializer';
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import Md from 'slate-md-serializer';
import Plain from 'slate-plain-serializer';
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import PlainWithPillsSerializer from "../../../autocomplete/PlainWithPillsSerializer";
// import {Editor, EditorState, RichUtils, CompositeDecorator, Modifier,
// getDefaultKeyBinding, KeyBindingUtil, ContentState, ContentBlock, SelectionState,
// Entity} from 'draft-js';
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import classNames from 'classnames';
import escape from 'lodash/escape';
import Promise from 'bluebird';
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import MatrixClientPeg from '../../../MatrixClientPeg';
import type {MatrixClient} from 'matrix-js-sdk/lib/matrix';
import SlashCommands from '../../../SlashCommands';
import { KeyCode, isOnlyCtrlOrCmdKeyEvent } from '../../../Keyboard';
import Modal from '../../../Modal';
import sdk from '../../../index';
import { _t, _td } from '../../../languageHandler';
import Analytics from '../../../Analytics';
import dis from '../../../dispatcher';
import * as RichText from '../../../RichText';
import * as HtmlUtils from '../../../HtmlUtils';
import Autocomplete from './Autocomplete';
import {Completion} from "../../../autocomplete/Autocompleter";
import Markdown from '../../../Markdown';
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import ComposerHistoryManager from '../../../ComposerHistoryManager';
import MessageComposerStore from '../../../stores/MessageComposerStore';
import {MATRIXTO_URL_PATTERN, MATRIXTO_MD_LINK_PATTERN} from '../../../linkify-matrix';
const REGEX_MATRIXTO = new RegExp(MATRIXTO_URL_PATTERN);
const REGEX_MATRIXTO_MARKDOWN_GLOBAL = new RegExp(MATRIXTO_MD_LINK_PATTERN, 'g');
import {asciiRegexp, unicodeRegexp, shortnameToUnicode, emojioneList, asciiList, mapUnicodeToShort, toShort} from 'emojione';
import SettingsStore, {SettingLevel} from "../../../settings/SettingsStore";
import {makeUserPermalink} from "../../../matrix-to";
import ReplyPreview from "./ReplyPreview";
import RoomViewStore from '../../../stores/RoomViewStore';
import ReplyThread from "../elements/ReplyThread";
import {ContentHelpers} from 'matrix-js-sdk';
const EMOJI_SHORTNAMES = Object.keys(emojioneList);
const EMOJI_UNICODE_TO_SHORTNAME = mapUnicodeToShort();
const REGEX_EMOJI_WHITESPACE = new RegExp('(?:^|\\s)(' + asciiRegexp + ')\\s$');
const EMOJI_REGEX = new RegExp(unicodeRegexp, 'g');
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const TYPING_USER_TIMEOUT = 10000, TYPING_SERVER_TIMEOUT = 30000;
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const ENTITY_TYPES = {
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AT_ROOM_PILL: 'ATROOMPILL',
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};
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// the Slate node type to default to for unstyled text
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const DEFAULT_NODE = 'paragraph';
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// map HTML elements through to our Slate schema node types
// used for the HTML deserializer.
// (The names here are chosen to match the MD serializer's schema for convenience)
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const BLOCK_TAGS = {
p: 'paragraph',
blockquote: 'block-quote',
ul: 'bulleted-list',
h1: 'heading1',
h2: 'heading2',
h3: 'heading3',
h4: 'heading4',
h5: 'heading5',
h6: 'heading6',
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li: 'list-item',
ol: 'numbered-list',
pre: 'code-block',
};
const MARK_TAGS = {
strong: 'bold',
b: 'bold', // deprecated
em: 'italic',
i: 'italic', // deprecated
code: 'code',
u: 'underlined',
del: 'deleted',
strike: 'deleted', // deprecated
s: 'deleted', // deprecated
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};
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function onSendMessageFailed(err, room) {
// XXX: temporary logging to try to diagnose
// https://github.com/vector-im/riot-web/issues/3148
console.log('MessageComposer got send failure: ' + err.name + '('+err+')');
dis.dispatch({
action: 'message_send_failed',
});
}
/*
* The textInput part of the MessageComposer
*/
export default class MessageComposerInput extends React.Component {
static propTypes = {
// a callback which is called when the height of the composer is
// changed due to a change in content.
onResize: PropTypes.func,
// js-sdk Room object
room: PropTypes.object.isRequired,
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onFilesPasted: PropTypes.func,
onInputStateChanged: PropTypes.func,
};
client: MatrixClient;
autocomplete: Autocomplete;
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historyManager: ComposerHistoryManager;
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constructor(props, context) {
super(props, context);
const isRichTextEnabled = SettingsStore.getValue('MessageComposerInput.isRichTextEnabled');
Analytics.setRichtextMode(isRichTextEnabled);
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this.state = {
// whether we're in rich text or markdown mode
isRichTextEnabled,
// the currently displayed editor state (note: this is always what is modified on input)
editorState: this.createEditorState(
isRichTextEnabled,
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MessageComposerStore.getEditorState(this.props.room.roomId),
),
// the original editor state, before we started tabbing through completions
originalEditorState: null,
// the virtual state "above" the history stack, the message currently being composed that
// we want to persist whilst browsing history
currentlyComposedEditorState: null,
// whether there were any completions
someCompletions: null,
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};
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this.client = MatrixClientPeg.get();
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this.plainWithMdPills = new PlainWithPillsSerializer({ pillFormat: 'md' });
this.plainWithIdPills = new PlainWithPillsSerializer({ pillFormat: 'id' });
this.plainWithPlainPills = new PlainWithPillsSerializer({ pillFormat: 'plain' });
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this.md = new Md({
rules: [
{
serialize: (obj, children) => {
if (obj.object === 'string') {
// escape any MD in it. i have no idea why the serializer doesn't
// do this already.
// TODO: this can probably be more robust - it doesn't consider
// indenting or lists for instance.
return children.replace(/([*_~`+])/g, '\\$1')
.replace(/^([>#\|])/g, '\\$1');
}
else if (obj.object === 'inline') {
switch (obj.type) {
case 'pill':
return `[${ obj.data.get('completion') }](${ obj.data.get('href') })`;
case 'emoji':
return obj.data.get('emojiUnicode');
}
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}
}
}
]
});
this.html = new Html({
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rules: [
{
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deserialize: (el, next) => {
const tag = el.tagName.toLowerCase();
let type = BLOCK_TAGS[tag];
if (type) {
return {
object: 'block',
type: type,
nodes: next(el.childNodes),
}
}
type = MARK_TAGS[tag];
if (type) {
return {
object: 'mark',
type: type,
nodes: next(el.childNodes),
}
}
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// special case links
if (tag === 'a') {
const href = el.getAttribute('href');
let m;
if (href) {
m = href.match(MATRIXTO_URL_PATTERN);
}
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if (m) {
return {
object: 'inline',
type: 'pill',
data: {
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href,
completion: el.innerText,
completionId: m[1],
},
isVoid: true,
}
}
else {
return {
object: 'inline',
type: 'link',
data: { href },
nodes: next(el.childNodes),
}
}
}
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},
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serialize: (obj, children) => {
if (obj.object === 'block') {
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return this.renderNode({
node: obj,
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children: children,
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});
}
else if (obj.object === 'mark') {
return this.renderMark({
mark: obj,
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children: children,
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});
}
else if (obj.object === 'inline') {
// special case links, pills and emoji otherwise we
// end up with React components getting rendered out(!)
switch (obj.type) {
case 'pill':
return <a href={ obj.data.get('href') }>{ obj.data.get('completion') }</a>;
case 'link':
return <a href={ obj.data.get('href') }>{ children }</a>;
case 'emoji':
// XXX: apparently you can't return plain strings from serializer rules
// until https://github.com/ianstormtaylor/slate/pull/1854 is merged.
// So instead we temporarily wrap emoji from RTE in an arbitrary tag
// (<b/>). <span/> would be nicer, but in practice it causes CSS issues.
return <b>{ obj.data.get('emojiUnicode') }</b>;
}
return this.renderNode({
node: obj,
children: children,
});
}
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}
}
]
});
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this.suppressAutoComplete = false;
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this.direction = '';
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}
/*
* "Does the right thing" to create an Editor value, based on:
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* - whether we've got rich text mode enabled
* - contentState was passed in
*/
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createEditorState(richText: boolean, editorState: ?Value): Value {
if (editorState instanceof Value) {
return editorState;
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}
else {
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// ...or create a new one.
return Plain.deserialize('', { defaultBlock: DEFAULT_NODE });
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}
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}
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componentDidMount() {
this.dispatcherRef = dis.register(this.onAction);
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this.historyManager = new ComposerHistoryManager(this.props.room.roomId);
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}
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componentWillUnmount() {
dis.unregister(this.dispatcherRef);
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}
onAction = (payload) => {
const editor = this.refs.editor;
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let editorState = this.state.editorState;
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switch (payload.action) {
case 'reply_to_event':
case 'focus_composer':
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editor.focus();
break;
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case 'insert_mention':
{
// Pretend that we've autocompleted this user because keeping two code
// paths for inserting a user pill is not fun
const selection = this.getSelectionRange(this.state.editorState);
const member = this.props.room.getMember(payload.user_id);
const completion = member ?
member.rawDisplayName.replace(' (IRC)', '') : payload.user_id;
this.setDisplayedCompletion({
completion,
completionId: payload.user_id,
selection,
href: makeUserPermalink(payload.user_id),
suffix: (selection.beginning && selection.start === 0) ? ': ' : ' ',
});
}
break;
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case 'quote': {
const html = HtmlUtils.bodyToHtml(payload.event.getContent(), null, {
returnString: true,
emojiOne: false,
});
const fragment = this.html.deserialize(html);
// FIXME: do we want to put in a permalink to the original quote here?
// If so, what should be the format, and how do we differentiate it from replies?
const quote = Block.create('block-quote');
if (this.state.isRichTextEnabled) {
let change = editorState.change();
if (editorState.anchorText.text === '' && editorState.anchorBlock.nodes.size === 1) {
// replace the current block rather than split the block
change = change.replaceNodeByKey(editorState.anchorBlock.key, quote);
}
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else {
// insert it into the middle of the block (splitting it)
change = change.insertBlock(quote);
}
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change = change.insertFragmentByKey(quote.key, 0, fragment.document)
.focus();
this.onChange(change);
}
else {
let fragmentChange = fragment.change();
fragmentChange.moveToRangeOf(fragment.document)
.wrapBlock(quote);
// FIXME: handle pills and use commonmark rather than md-serialize
const md = this.md.serialize(fragmentChange.value);
let change = editorState.change()
.insertText(md + '\n\n')
.focus();
this.onChange(change);
}
}
break;
}
};
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onTypingActivity() {
this.isTyping = true;
if (!this.userTypingTimer) {
this.sendTyping(true);
}
this.startUserTypingTimer();
this.startServerTypingTimer();
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}
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onFinishedTyping() {
this.isTyping = false;
this.sendTyping(false);
this.stopUserTypingTimer();
this.stopServerTypingTimer();
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}
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startUserTypingTimer() {
this.stopUserTypingTimer();
const self = this;
this.userTypingTimer = setTimeout(function() {
self.isTyping = false;
self.sendTyping(self.isTyping);
self.userTypingTimer = null;
}, TYPING_USER_TIMEOUT);
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}
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stopUserTypingTimer() {
if (this.userTypingTimer) {
clearTimeout(this.userTypingTimer);
this.userTypingTimer = null;
}
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}
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startServerTypingTimer() {
if (!this.serverTypingTimer) {
const self = this;
this.serverTypingTimer = setTimeout(function() {
if (self.isTyping) {
self.sendTyping(self.isTyping);
self.startServerTypingTimer();
}
}, TYPING_SERVER_TIMEOUT / 2);
}
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}
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stopServerTypingTimer() {
if (this.serverTypingTimer) {
clearTimeout(this.serverTypingTimer);
this.serverTypingTimer = null;
}
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}
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sendTyping(isTyping) {
if (SettingsStore.getValue('dontSendTypingNotifications')) return;
MatrixClientPeg.get().sendTyping(
this.props.room.roomId,
this.isTyping, TYPING_SERVER_TIMEOUT,
).done();
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}
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refreshTyping() {
if (this.typingTimeout) {
clearTimeout(this.typingTimeout);
this.typingTimeout = null;
}
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}
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onChange = (change: Change, originalEditorState: value) => {
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let editorState = change.value;
if (this.direction !== '') {
const focusedNode = editorState.focusInline || editorState.focusText;
if (focusedNode.isVoid) {
if (editorState.isCollapsed) {
change = change[`collapseToEndOf${ this.direction }Text`]();
}
else {
const block = this.direction === 'Previous' ? editorState.previousText : editorState.nextText;
if (block) {
change = change.moveFocusToEndOf(block)
}
}
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editorState = change.value;
}
}
if (!editorState.document.isEmpty) {
this.onTypingActivity();
} else {
this.onFinishedTyping();
}
/*
// XXX: what was this ever doing?
if (!state.hasOwnProperty('originalEditorState')) {
state.originalEditorState = null;
}
*/
// emojioneify any emoji
// XXX: is getTextsAsArray a private API?
editorState.document.getTextsAsArray().forEach(node => {
if (node.text !== '' && HtmlUtils.containsEmoji(node.text)) {
let match;
while ((match = EMOJI_REGEX.exec(node.text)) !== null) {
const range = Range.create({
anchorKey: node.key,
anchorOffset: match.index,
focusKey: node.key,
focusOffset: match.index + match[0].length,
});
const inline = Inline.create({
type: 'emoji',
data: { emojiUnicode: match[0] },
isVoid: true,
});
change = change.insertInlineAtRange(range, inline);
editorState = change.value;
}
}
});
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/*
const currentBlock = editorState.getSelection().getStartKey();
const currentSelection = editorState.getSelection();
const currentStartOffset = editorState.getSelection().getStartOffset();
const block = editorState.getCurrentContent().getBlockForKey(currentBlock);
const text = block.getText();
const entityBeforeCurrentOffset = block.getEntityAt(currentStartOffset - 1);
const entityAtCurrentOffset = block.getEntityAt(currentStartOffset);
// If the cursor is on the boundary between an entity and a non-entity and the
// text before the cursor has whitespace at the end, set the entity state of the
// character before the cursor (the whitespace) to null. This allows the user to
// stop editing the link.
if (entityBeforeCurrentOffset && !entityAtCurrentOffset &&
/\s$/.test(text.slice(0, currentStartOffset))) {
editorState = RichUtils.toggleLink(
editorState,
currentSelection.merge({
anchorOffset: currentStartOffset - 1,
focusOffset: currentStartOffset,
}),
null,
);
// Reset selection
editorState = EditorState.forceSelection(editorState, currentSelection);
}
*/
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if (editorState.startText !== null) {
const text = editorState.startText.text;
const currentStartOffset = editorState.startOffset;
// Automatic replacement of plaintext emoji to Unicode emoji
if (SettingsStore.getValue('MessageComposerInput.autoReplaceEmoji')) {
// The first matched group includes just the matched plaintext emoji
const emojiMatch = REGEX_EMOJI_WHITESPACE.exec(text.slice(0, currentStartOffset));
if (emojiMatch) {
// plaintext -> hex unicode
const emojiUc = asciiList[emojiMatch[1]];
// hex unicode -> shortname -> actual unicode
const unicodeEmoji = shortnameToUnicode(EMOJI_UNICODE_TO_SHORTNAME[emojiUc]);
const range = Range.create({
anchorKey: editorState.selection.startKey,
anchorOffset: currentStartOffset - emojiMatch[1].length - 1,
focusKey: editorState.selection.startKey,
focusOffset: currentStartOffset,
});
change = change.insertTextAtRange(range, unicodeEmoji);
editorState = change.value;
}
}
}
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if (this.props.onInputStateChanged && editorState.blocks.size > 0) {
let blockType = editorState.blocks.first().type;
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// console.log("onInputStateChanged; current block type is " + blockType + " and marks are " + editorState.activeMarks);
if (blockType === 'list-item') {
const parent = editorState.document.getParent(editorState.blocks.first().key);
if (parent.type === 'numbered-list') {
blockType = 'numbered-list';
}
else if (parent.type === 'bulleted-list') {
blockType = 'bulleted-list';
}
}
const inputState = {
marks: editorState.activeMarks,
isRichTextEnabled: this.state.isRichTextEnabled,
blockType
};
this.props.onInputStateChanged(inputState);
}
// Record the editor state for this room so that it can be retrieved after
// switching to another room and back
dis.dispatch({
action: 'editor_state',
room_id: this.props.room.roomId,
editor_state: editorState,
});
/* Since a modification was made, set originalEditorState to null, since newState is now our original */
this.setState({
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editorState,
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originalEditorState: originalEditorState || null
});
};
mdToRichEditorState(editorState: Value): Value {
// for consistency when roundtripping, we could use slate-md-serializer rather than
// commonmark, but then we would lose pills as the MD deserialiser doesn't know about
// them and doesn't have any extensibility hooks.
//
// The code looks like this:
//
// const markdown = this.plainWithMdPills.serialize(editorState);
//
// // weirdly, the Md serializer can't deserialize '' to a valid Value...
// if (markdown !== '') {
// editorState = this.md.deserialize(markdown);
// }
// else {
// editorState = Plain.deserialize('', { defaultBlock: DEFAULT_NODE });
// }
// so, instead, we use commonmark proper (which is arguably more logical to the user
// anyway, as they'll expect the RTE view to match what they'll see in the timeline,
// but the HTML->MD conversion is anyone's guess).
const textWithMdPills = this.plainWithMdPills.serialize(editorState);
const markdown = new Markdown(textWithMdPills);
// HTML deserialize has custom rules to turn matrix.to links into pill objects.
return this.html.deserialize(markdown.toHTML());
}
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richToMdEditorState(editorState: Value): Value {
// FIXME: this conversion loses pills (turning them into pure MD links).
// We need to add a pill-aware deserialize method
// to PlainWithPillsSerializer which recognises pills in raw MD and turns them into pills.
return Plain.deserialize(
// FIXME: we compile the MD out of the RTE state using slate-md-serializer
// which doesn't roundtrip symmetrically with commonmark, which we use for
// compiling MD out of the MD editor state above.
this.md.serialize(editorState),
{ defaultBlock: DEFAULT_NODE }
);
}
enableRichtext(enabled: boolean) {
if (enabled === this.state.isRichTextEnabled) return;
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let editorState = null;
if (enabled) {
editorState = this.mdToRichEditorState(this.state.editorState);
} else {
editorState = this.richToMdEditorState(this.state.editorState);
}
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Analytics.setRichtextMode(enabled);
this.setState({
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editorState: this.createEditorState(enabled, editorState),
isRichTextEnabled: enabled,
}, ()=>{
this.refs.editor.focus();
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});
SettingsStore.setValue("MessageComposerInput.isRichTextEnabled", null, SettingLevel.ACCOUNT, enabled);
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};
/**
* Check if the current selection has a mark with `type` in it.
*
* @param {String} type
* @return {Boolean}
*/
hasMark = type => {
const { editorState } = this.state
return editorState.activeMarks.some(mark => mark.type == type)
};
/**
* Check if the any of the currently selected blocks are of `type`.
*
* @param {String} type
* @return {Boolean}
*/
hasBlock = type => {
const { editorState } = this.state
return editorState.blocks.some(node => node.type == type)
};
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onKeyDown = (ev: Event, change: Change, editor: Editor) => {
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this.suppressAutoComplete = false;
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// skip void nodes - see
// https://github.com/ianstormtaylor/slate/issues/762#issuecomment-304855095
if (ev.keyCode === KeyCode.LEFT) {
this.direction = 'Previous';
}
else if (ev.keyCode === KeyCode.RIGHT) {
this.direction = 'Next';
} else {
this.direction = '';
}
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if (isOnlyCtrlOrCmdKeyEvent(ev)) {
const ctrlCmdCommand = {
// C-m => Toggles between rich text and markdown modes
[KeyCode.KEY_M]: 'toggle-mode',
[KeyCode.KEY_B]: 'bold',
[KeyCode.KEY_I]: 'italic',
[KeyCode.KEY_U]: 'underlined',
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[KeyCode.KEY_J]: 'code',
}[ev.keyCode];
if (ctrlCmdCommand) {
return this.handleKeyCommand(ctrlCmdCommand);
}
return false;
}
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switch (ev.keyCode) {
case KeyCode.ENTER:
return this.handleReturn(ev, change);
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case KeyCode.BACKSPACE:
return this.onBackspace(ev, change);
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case KeyCode.UP:
return this.onVerticalArrow(ev, true);
case KeyCode.DOWN:
return this.onVerticalArrow(ev, false);
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case KeyCode.TAB:
return this.onTab(ev);
case KeyCode.ESCAPE:
return this.onEscape(ev);
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default:
// don't intercept it
return;
}
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};
onBackspace = (ev: Event, change: Change): Change => {
if (this.state.isRichTextEnabled) {
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// let backspace exit lists
const isList = this.hasBlock('list-item');
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const { editorState } = this.state;
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if (isList && editorState.anchorOffset == 0) {
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change
.setBlocks(DEFAULT_NODE)
.unwrapBlock('bulleted-list')
.unwrapBlock('numbered-list');
return change;
}
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else if (editorState.anchorOffset == 0 && editorState.isCollapsed) {
// turn blocks back into paragraphs
if ((this.hasBlock('block-quote') ||
this.hasBlock('heading1') ||
this.hasBlock('heading2') ||
this.hasBlock('heading3') ||
this.hasBlock('heading4') ||
this.hasBlock('heading5') ||
this.hasBlock('heading6') ||
this.hasBlock('code-block')))
{
return change.setBlocks(DEFAULT_NODE);
}
// remove paragraphs entirely if they're nested
const parent = editorState.document.getParent(editorState.anchorBlock.key);
if (editorState.anchorOffset == 0 &&
this.hasBlock('paragraph') &&
parent.nodes.size == 1 &&
parent.object !== 'document')
{
return change.replaceNodeByKey(editorState.anchorBlock.key, editorState.anchorText)
.collapseToEndOf(parent)
.focus();
}
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}
}
return;
};
handleKeyCommand = (command: string): boolean => {
if (command === 'toggle-mode') {
this.enableRichtext(!this.state.isRichTextEnabled);
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return true;
}
let newState: ?Value = null;
// Draft handles rich text mode commands by default but we need to do it ourselves for Markdown.
if (this.state.isRichTextEnabled) {
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const type = command;
const { editorState } = this.state;
const change = editorState.change();
const { document } = editorState;
switch (type) {
// list-blocks:
case 'bulleted-list':
case 'numbered-list': {
// Handle the extra wrapping required for list buttons.
const isList = this.hasBlock('list-item');
const isType = editorState.blocks.some(block => {
return !!document.getClosest(block.key, parent => parent.type == type);
});
if (isList && isType) {
change
.setBlocks(DEFAULT_NODE)
.unwrapBlock('bulleted-list')
.unwrapBlock('numbered-list');
} else if (isList) {
change
.unwrapBlock(
type == 'bulleted-list' ? 'numbered-list' : 'bulleted-list'
)
.wrapBlock(type);
} else {
change.setBlocks('list-item').wrapBlock(type);
}
}
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break;
// simple blocks
case 'paragraph':
case 'block-quote':
case 'heading1':
case 'heading2':
case 'heading3':
case 'heading4':
case 'heading5':
case 'heading6':
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case 'list-item':
case 'code-block': {
const isActive = this.hasBlock(type);
const isList = this.hasBlock('list-item');
if (isList) {
change
.setBlocks(isActive ? DEFAULT_NODE : type)
.unwrapBlock('bulleted-list')
.unwrapBlock('numbered-list');
} else {
change.setBlocks(isActive ? DEFAULT_NODE : type);
}
}
break;
// marks:
case 'bold':
case 'italic':
case 'code':
case 'underlined':
case 'deleted': {
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change.toggleMark(type);
}
break;
default:
console.warn(`ignoring unrecognised RTE command ${type}`);
return false;
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}
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this.onChange(change);
return true;
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} else {
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/*
const contentState = this.state.editorState.getCurrentContent();
const multipleLinesSelected = RichText.hasMultiLineSelection(this.state.editorState);
const selectionState = this.state.editorState.getSelection();
const start = selectionState.getStartOffset();
const end = selectionState.getEndOffset();
// If multiple lines are selected or nothing is selected, insert a code block
// instead of applying inline code formatting. This is an attempt to mimic what
// happens in non-MD mode.
const treatInlineCodeAsBlock = multipleLinesSelected || start === end;
const textMdCodeBlock = (text) => `\`\`\`\n${text}\n\`\`\`\n`;
const modifyFn = {
'bold': (text) => `**${text}**`,
'italic': (text) => `*${text}*`,
'underline': (text) => `<u>${text}</u>`,
'strike': (text) => `<del>${text}</del>`,
// ("code" is triggered by ctrl+j by draft-js by default)
'code': (text) => treatInlineCodeAsBlock ? textMdCodeBlock(text) : `\`${text}\``,
'code-block': textMdCodeBlock,
'blockquote': (text) => text.split('\n').map((line) => `> ${line}\n`).join('') + '\n',
'unordered-list-item': (text) => text.split('\n').map((line) => `\n- ${line}`).join(''),
'ordered-list-item': (text) => text.split('\n').map((line, i) => `\n${i + 1}. ${line}`).join(''),
}[command];
const selectionAfterOffset = {
'bold': -2,
'italic': -1,
'underline': -4,
'strike': -6,
'code': treatInlineCodeAsBlock ? -5 : -1,
'code-block': -5,
'blockquote': -2,
}[command];
// Returns a function that collapses a selection to its end and moves it by offset
const collapseAndOffsetSelection = (selection, offset) => {
const key = selection.endKey();
return new Range({
anchorKey: key, anchorOffset: offset,
focusKey: key, focusOffset: offset,
});
};
if (modifyFn) {
const previousSelection = this.state.editorState.getSelection();
const newContentState = RichText.modifyText(contentState, previousSelection, modifyFn);
newState = EditorState.push(
this.state.editorState,
newContentState,
'insert-characters',
);
let newSelection = newContentState.getSelectionAfter();
// If the selection range is 0, move the cursor inside the formatted body
if (previousSelection.getStartOffset() === previousSelection.getEndOffset() &&
previousSelection.getStartKey() === previousSelection.getEndKey() &&
selectionAfterOffset !== undefined
) {
const selectedBlock = newContentState.getBlockForKey(previousSelection.getAnchorKey());
const blockLength = selectedBlock.getText().length;
const newOffset = blockLength + selectionAfterOffset;
newSelection = collapseAndOffsetSelection(newSelection, newOffset);
}
newState = EditorState.forceSelection(newState, newSelection);
}
}
if (newState != null) {
this.setState({editorState: newState});
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return true;
}
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*/
}
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return false;
};
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onPaste = (event: Event, change: Change, editor: Editor): Change => {
const transfer = getEventTransfer(event);
if (transfer.type === "files") {
return this.props.onFilesPasted(transfer.files);
}
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else if (transfer.type === "html") {
// FIXME: https://github.com/ianstormtaylor/slate/issues/1497 means
// that we will silently discard nested blocks (e.g. nested lists) :(
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const fragment = this.html.deserialize(transfer.html);
if (this.state.isRichTextEnabled) {
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return change.insertFragment(fragment.document);
}
else {
return change.insertText(this.md.serialize(fragment));
}
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}
};
handleReturn = (ev, change) => {
if (ev.shiftKey) {
return change.insertText('\n');
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}
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if (this.state.editorState.blocks.some(
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block => ['code-block', 'block-quote', 'list-item'].includes(block.type)
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)) {
// allow the user to terminate blocks by hitting return rather than sending a msg
return;
}
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const editorState = this.state.editorState;
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let contentText;
let contentHTML;
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// only look for commands if the first block contains simple unformatted text
// i.e. no pills or rich-text formatting.
let cmd, commandText;
const firstChild = editorState.document.nodes.get(0);
const firstGrandChild = firstChild && firstChild.nodes.get(0);
if (firstChild && firstGrandChild &&
firstChild.object === 'block' && firstGrandChild.object === 'text' &&
firstGrandChild.text[0] === '/')
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{
commandText = this.plainWithIdPills.serialize(editorState);
cmd = SlashCommands.processInput(this.props.room.roomId, commandText);
}
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if (cmd) {
if (!cmd.error) {
this.historyManager.save(editorState, this.state.isRichTextEnabled ? 'rich' : 'markdown');
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this.setState({
editorState: this.createEditorState(),
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});
}
if (cmd.promise) {
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cmd.promise.then(()=>{
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console.log("Command success.");
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this.refs.editor.focus();
}, (err)=>{
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console.error("Command failure: %s", err);
const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
Modal.createTrackedDialog('Server error', '', ErrorDialog, {
title: _t("Server error"),
description: ((err && err.message) ? err.message : _t("Server unavailable, overloaded, or something else went wrong.")),
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});
});
} else if (cmd.error) {
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console.error(cmd.error);
const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
// TODO possibly track which command they ran (not its Arguments) here
Modal.createTrackedDialog('Command error', '', ErrorDialog, {
title: _t("Command error"),
description: cmd.error,
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});
}
return true;
}
const replyingToEv = RoomViewStore.getQuotingEvent();
const mustSendHTML = Boolean(replyingToEv);
if (this.state.isRichTextEnabled) {
// We should only send HTML if any block is styled or contains inline style
let shouldSendHTML = false;
if (mustSendHTML) shouldSendHTML = true;
if (!shouldSendHTML) {
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shouldSendHTML = !!editorState.document.findDescendant(node => {
// N.B. node.getMarks() might be private?
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return ((node.object === 'block' && node.type !== 'paragraph') ||
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(node.object === 'inline') ||
(node.object === 'text' && node.getMarks().size > 0));
});
}
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contentText = this.plainWithPlainPills.serialize(editorState);
if (contentText === '') return true;
if (shouldSendHTML) {
// FIXME: should we strip out the surrounding <p></p>?
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contentHTML = this.html.serialize(editorState); // HtmlUtils.processHtmlForSending();
}
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} else {
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const sourceWithPills = this.plainWithMdPills.serialize(editorState);
if (sourceWithPills === '') return true;
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const mdWithPills = new Markdown(sourceWithPills);
// if contains no HTML and we're not quoting (needing HTML)
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if (mdWithPills.isPlainText() && !mustSendHTML) {
// N.B. toPlainText is only usable here because we know that the MD
// didn't contain any formatting in the first place...
contentText = mdWithPills.toPlaintext();
} else {
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// to avoid ugliness clients which can't parse HTML we don't send pills
// in the plaintext body.
contentText = this.plainWithPlainPills.serialize(editorState);
contentHTML = mdWithPills.toHTML();
}
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}
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let sendHtmlFn = ContentHelpers.makeHtmlMessage;
let sendTextFn = ContentHelpers.makeTextMessage;
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this.historyManager.save(
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editorState,
this.state.isRichTextEnabled ? 'rich' : 'markdown',
);
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if (commandText && commandText.startsWith('/me')) {
if (replyingToEv) {
const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
Modal.createTrackedDialog('Emote Reply Fail', '', ErrorDialog, {
title: _t("Unable to reply"),
description: _t("At this time it is not possible to reply with an emote."),
});
return false;
}
contentText = contentText.substring(4);
// bit of a hack, but the alternative would be quite complicated
if (contentHTML) contentHTML = contentHTML.replace(/\/me ?/, '');
sendHtmlFn = ContentHelpers.makeHtmlEmote;
sendTextFn = ContentHelpers.makeEmoteMessage;
}
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let content = contentHTML ?
sendHtmlFn(contentText, contentHTML) :
sendTextFn(contentText);
if (replyingToEv) {
const replyContent = ReplyThread.makeReplyMixIn(replyingToEv);
content = Object.assign(replyContent, content);
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// Part of Replies fallback support - prepend the text we're sending
// with the text we're replying to
const nestedReply = ReplyThread.getNestedReplyText(replyingToEv);
if (nestedReply) {
if (content.formatted_body) {
content.formatted_body = nestedReply.html + content.formatted_body;
}
content.body = nestedReply.body + content.body;
}
// Clear reply_to_event as we put the message into the queue
// if the send fails, retry will handle resending.
dis.dispatch({
action: 'reply_to_event',
event: null,
});
}
this.client.sendMessage(this.props.room.roomId, content).then((res) => {
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dis.dispatch({
action: 'message_sent',
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});
}).catch((e) => {
onSendMessageFailed(e, this.props.room);
});
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this.setState({
editorState: this.createEditorState(),
}, ()=>{ this.refs.editor.focus() });
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return true;
};
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onVerticalArrow = (e, up) => {
if (e.ctrlKey || e.shiftKey || e.altKey || e.metaKey) {
return;
}
// Select history only if we are not currently auto-completing
if (this.autocomplete.state.completionList.length === 0) {
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// determine whether our cursor is at the top or bottom of the multiline
// input box by just looking at the position of the plain old DOM selection.
const selection = window.getSelection();
const range = selection.getRangeAt(0);
const cursorRect = range.getBoundingClientRect();
const editorNode = ReactDOM.findDOMNode(this.refs.editor);
const editorRect = editorNode.getBoundingClientRect();
// heuristic to handle tall emoji, pills, etc pushing the cursor away from the top
// or bottom of the page.
// XXX: is this going to break on large inline images or top-to-bottom scripts?
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const EDGE_THRESHOLD = 15;
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let navigateHistory = false;
if (up) {
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const scrollCorrection = editorNode.scrollTop;
const distanceFromTop = cursorRect.top - editorRect.top + scrollCorrection;
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console.log(`Cursor distance from editor top is ${distanceFromTop}`);
if (distanceFromTop < EDGE_THRESHOLD) {
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navigateHistory = true;
}
}
else {
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const scrollCorrection =
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editorNode.scrollHeight - editorNode.clientHeight - editorNode.scrollTop;
const distanceFromBottom = editorRect.bottom - cursorRect.bottom + scrollCorrection;
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console.log(`Cursor distance from editor bottom is ${distanceFromBottom}`);
if (distanceFromBottom < EDGE_THRESHOLD) {
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navigateHistory = true;
}
}
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if (!navigateHistory) return;
const selected = this.selectHistory(up);
if (selected) {
// We're selecting history, so prevent the key event from doing anything else
e.preventDefault();
}
} else {
this.moveAutocompleteSelection(up);
e.preventDefault();
}
};
selectHistory = async (up) => {
const delta = up ? -1 : 1;
// True if we are not currently selecting history, but composing a message
if (this.historyManager.currentIndex === this.historyManager.history.length) {
// We can't go any further - there isn't any more history, so nop.
if (!up) {
return;
}
this.setState({
currentlyComposedEditorState: this.state.editorState,
});
} else if (this.historyManager.currentIndex + delta === this.historyManager.history.length) {
// True when we return to the message being composed currently
this.setState({
editorState: this.state.currentlyComposedEditorState,
});
this.historyManager.currentIndex = this.historyManager.history.length;
return;
}
let editorState;
const historyItem = this.historyManager.getItem(delta);
if (historyItem) {
if (historyItem.format === 'rich' && !this.state.isRichTextEnabled) {
editorState = this.richToMdEditorState(historyItem.value);
}
else if (historyItem.format === 'markdown' && this.state.isRichTextEnabled) {
editorState = this.mdToRichEditorState(historyItem.value);
}
else {
editorState = historyItem.value;
}
}
// Move selection to the end of the selected history
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const change = editorState.change().collapseToEndOf(editorState.document);
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// XXX: should we be calling this.onChange(change) now?
// Answer: yes, if we want it to do any of the fixups on stuff like emoji.
// however, this should already have been done and persisted in the history,
// so shouldn't be necessary.
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editorState = change.value;
this.suppressAutoComplete = true;
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this.setState({ editorState }, ()=>{
this.refs.editor.focus();
});
return true;
};
onTab = async (e) => {
this.setState({
someCompletions: null,
});
e.preventDefault();
if (this.autocomplete.state.completionList.length === 0) {
// Force completions to show for the text currently entered
const completionCount = await this.autocomplete.forceComplete();
this.setState({
someCompletions: completionCount > 0,
});
// Select the first item by moving "down"
await this.moveAutocompleteSelection(false);
} else {
await this.moveAutocompleteSelection(e.shiftKey);
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}
};
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moveAutocompleteSelection = (up) => {
up ? this.autocomplete.onUpArrow() : this.autocomplete.onDownArrow();
};
onEscape = async (e) => {
e.preventDefault();
if (this.autocomplete) {
this.autocomplete.onEscape(e);
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}
await this.setDisplayedCompletion(null); // restore originalEditorState
};
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/* If passed null, restores the original editor content from state.originalEditorState.
* If passed a non-null displayedCompletion, modifies state.originalEditorState to compute new state.editorState.
*/
setDisplayedCompletion = async (displayedCompletion: ?Completion): boolean => {
const activeEditorState = this.state.originalEditorState || this.state.editorState;
if (displayedCompletion == null) {
if (this.state.originalEditorState) {
let editorState = this.state.originalEditorState;
this.setState({editorState});
}
return false;
}
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const {
range = null,
completion = '',
completionId = '',
href = null,
suffix = ''
} = displayedCompletion;
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let inline;
if (href) {
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inline = Inline.create({
type: 'pill',
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data: { completion, completionId, href },
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// we can't put text in here otherwise the editor tries to select it
isVoid: true,
});
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} else if (completion === '@room') {
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inline = Inline.create({
type: 'pill',
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data: { completion, completionId },
// we can't put text in here otherwise the editor tries to select it
isVoid: true,
});
}
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let editorState = activeEditorState;
if (range) {
const change = editorState.change()
.collapseToAnchor()
.moveOffsetsTo(range.start, range.end);
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editorState = change.value;
}
let change;
if (inline) {
change = editorState.change()
.insertInlineAtRange(editorState.selection, inline)
.insertText(suffix);
}
else {
change = editorState.change()
.insertTextAtRange(editorState.selection, completion)
.insertText(suffix);
}
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editorState = change.value;
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this.onChange(change, activeEditorState);
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return true;
};
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renderNode = props => {
const { attributes, children, node, isSelected } = props;
switch (node.type) {
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case 'paragraph':
return <p {...attributes}>{children}</p>;
case 'block-quote':
return <blockquote {...attributes}>{children}</blockquote>;
case 'bulleted-list':
return <ul {...attributes}>{children}</ul>;
case 'heading1':
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return <h1 {...attributes}>{children}</h1>;
case 'heading2':
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return <h2 {...attributes}>{children}</h2>;
case 'heading3':
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return <h3 {...attributes}>{children}</h3>;
case 'heading4':
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return <h4 {...attributes}>{children}</h4>;
case 'heading5':
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return <h5 {...attributes}>{children}</h5>;
case 'heading6':
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return <h6 {...attributes}>{children}</h6>;
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case 'list-item':
return <li {...attributes}>{children}</li>;
case 'numbered-list':
return <ol {...attributes}>{children}</ol>;
case 'code-block':
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return <pre {...attributes}><code {...attributes}>{children}</code></pre>;
case 'link':
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return <a {...attributes} href={ node.data.get('href') }>{children}</a>;
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case 'pill': {
const { data } = node;
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const url = data.get('href');
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const completion = data.get('completion');
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const shouldShowPillAvatar = !SettingsStore.getValue("Pill.shouldHidePillAvatar");
const Pill = sdk.getComponent('elements.Pill');
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if (completion === '@room') {
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return <Pill
type={Pill.TYPE_AT_ROOM_MENTION}
room={this.props.room}
shouldShowPillAvatar={shouldShowPillAvatar}
isSelected={isSelected}
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/>;
}
else if (Pill.isPillUrl(url)) {
return <Pill
url={url}
room={this.props.room}
shouldShowPillAvatar={shouldShowPillAvatar}
isSelected={isSelected}
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/>;
}
else {
const { text } = node;
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return <a href={url} {...props.attributes}>
{ text }
</a>;
}
}
case 'emoji': {
const { data } = node;
const emojiUnicode = data.get('emojiUnicode');
const uri = RichText.unicodeToEmojiUri(emojiUnicode);
const shortname = toShort(emojiUnicode);
const className = classNames('mx_emojione', {
mx_emojione_selected: isSelected
});
return <img className={ className } src={ uri } title={ shortname } alt={ emojiUnicode }/>;
}
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}
};
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renderMark = props => {
const { children, mark, attributes } = props;
switch (mark.type) {
case 'bold':
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return <strong {...attributes}>{children}</strong>;
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case 'italic':
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return <em {...attributes}>{children}</em>;
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case 'code':
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return <code {...attributes}>{children}</code>;
case 'underlined':
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return <u {...attributes}>{children}</u>;
case 'deleted':
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return <del {...attributes}>{children}</del>;
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}
};
onFormatButtonClicked = (name, e) => {
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e.preventDefault(); // don't steal focus from the editor!
// XXX: horrible evil hack to ensure the editor is focused so the act
// of focusing it doesn't then cancel the format button being pressed
if (document.activeElement && document.activeElement.className !== 'mx_MessageComposer_editor') {
this.refs.editor.focus();
setTimeout(()=>{
this.handleKeyCommand(name);
}, 500); // can't find any callback to hook this to. onFocus and onChange and willComponentUpdate fire too early.
return;
}
this.handleKeyCommand(name);
};
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getAutocompleteQuery(editorState: Value) {
// We can just return the current block where the selection begins, which
// should be enough to capture any autocompletion input, given autocompletion
// providers only search for the first match which intersects with the current selection.
// This avoids us having to serialize the whole thing to plaintext and convert
// selection offsets in & out of the plaintext domain.
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if (editorState.selection.anchorKey) {
return editorState.document.getDescendant(editorState.selection.anchorKey).text;
}
else {
return '';
}
}
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getSelectionRange(editorState: Value) {
let beginning = false;
const query = this.getAutocompleteQuery(editorState);
const firstChild = editorState.document.nodes.get(0);
const firstGrandChild = firstChild && firstChild.nodes.get(0);
beginning = (firstChild && firstGrandChild &&
firstChild.object === 'block' && firstGrandChild.object === 'text' &&
editorState.selection.anchorKey === firstGrandChild.key);
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// return a character range suitable for handing to an autocomplete provider.
// the range is relative to the anchor of the current editor selection.
// if the selection spans multiple blocks, then we collapse it for the calculation.
const range = {
beginning, // whether the selection is in the first block of the editor or not
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start: editorState.selection.anchorOffset,
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end: (editorState.selection.anchorKey == editorState.selection.focusKey) ?
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editorState.selection.focusOffset : editorState.selection.anchorOffset,
}
if (range.start > range.end) {
const tmp = range.start;
range.start = range.end;
range.end = tmp;
}
return range;
}
onMarkdownToggleClicked = (e) => {
e.preventDefault(); // don't steal focus from the editor!
this.handleKeyCommand('toggle-mode');
};
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render() {
const activeEditorState = this.state.originalEditorState || this.state.editorState;
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const className = classNames('mx_MessageComposer_input', {
mx_MessageComposer_input_error: this.state.someCompletions === false,
});
return (
<div className="mx_MessageComposer_input_wrapper">
<div className="mx_MessageComposer_autocomplete_wrapper">
{ SettingsStore.isFeatureEnabled("feature_rich_quoting") && <ReplyPreview /> }
<Autocomplete
ref={(e) => this.autocomplete = e}
room={this.props.room}
onConfirm={this.setDisplayedCompletion}
onSelectionChange={this.setDisplayedCompletion}
query={ this.suppressAutoComplete ? '' : this.getAutocompleteQuery(activeEditorState) }
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selection={this.getSelectionRange(activeEditorState)}
/>
</div>
<div className={className}>
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<img className="mx_MessageComposer_input_markdownIndicator mx_filterFlipColor"
onMouseDown={this.onMarkdownToggleClicked}
title={this.state.isRichTextEnabled ? _t("Markdown is disabled") : _t("Markdown is enabled")}
src={`img/button-md-${!this.state.isRichTextEnabled}.png`} />
<Editor ref="editor"
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dir="auto"
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className="mx_MessageComposer_editor"
placeholder={this.props.placeholder}
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value={this.state.editorState}
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onChange={this.onChange}
onKeyDown={this.onKeyDown}
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onPaste={this.onPaste}
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renderNode={this.renderNode}
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renderMark={this.renderMark}
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spellCheck={true}
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/>
</div>
</div>
);
}
}