mirror of
https://github.com/element-hq/element-web.git
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489 lines
19 KiB
JavaScript
489 lines
19 KiB
JavaScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Copyright 2017 New Vector Ltd
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Copyright 2019 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from 'react';
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import ReactDOM from 'react-dom';
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import PropTypes from 'prop-types';
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import createReactClass from 'create-react-class';
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import highlight from 'highlight.js';
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import * as HtmlUtils from '../../../HtmlUtils';
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import {formatDate} from '../../../DateUtils';
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import sdk from '../../../index';
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import Modal from '../../../Modal';
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import dis from '../../../dispatcher';
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import { _t } from '../../../languageHandler';
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import * as ContextualMenu from '../../structures/ContextualMenu';
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import SettingsStore from "../../../settings/SettingsStore";
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import ReplyThread from "../elements/ReplyThread";
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import {host as matrixtoHost} from '../../../matrix-to';
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import {pillifyLinks} from '../../../utils/pillify';
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import {IntegrationManagers} from "../../../integrations/IntegrationManagers";
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module.exports = createReactClass({
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displayName: 'TextualBody',
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propTypes: {
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/* the MatrixEvent to show */
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mxEvent: PropTypes.object.isRequired,
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/* a list of words to highlight */
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highlights: PropTypes.array,
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/* link URL for the highlights */
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highlightLink: PropTypes.string,
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/* should show URL previews for this event */
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showUrlPreview: PropTypes.bool,
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/* callback for when our widget has loaded */
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onHeightChanged: PropTypes.func,
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/* the shape of the tile, used */
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tileShape: PropTypes.string,
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},
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getInitialState: function() {
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return {
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// the URLs (if any) to be previewed with a LinkPreviewWidget
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// inside this TextualBody.
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links: [],
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// track whether the preview widget is hidden
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widgetHidden: false,
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};
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},
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copyToClipboard: function(text) {
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const textArea = document.createElement("textarea");
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textArea.value = text;
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document.body.appendChild(textArea);
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textArea.select();
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let successful = false;
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try {
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successful = document.execCommand('copy');
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} catch (err) {
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console.log('Unable to copy');
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}
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document.body.removeChild(textArea);
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return successful;
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},
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componentDidMount: function() {
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this._unmounted = false;
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if (!this.props.editState) {
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this._applyFormatting();
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}
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},
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_applyFormatting() {
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this.activateSpoilers(this.refs.content.children);
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// pillifyLinks BEFORE linkifyElement because plain room/user URLs in the composer
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// are still sent as plaintext URLs. If these are ever pillified in the composer,
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// we should be pillify them here by doing the linkifying BEFORE the pillifying.
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pillifyLinks(this.refs.content.children, this.props.mxEvent);
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HtmlUtils.linkifyElement(this.refs.content);
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this.calculateUrlPreview();
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if (this.props.mxEvent.getContent().format === "org.matrix.custom.html") {
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const blocks = ReactDOM.findDOMNode(this).getElementsByTagName("code");
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if (blocks.length > 0) {
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// Do this asynchronously: parsing code takes time and we don't
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// need to block the DOM update on it.
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setTimeout(() => {
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if (this._unmounted) return;
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for (let i = 0; i < blocks.length; i++) {
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if (SettingsStore.getValue("enableSyntaxHighlightLanguageDetection")) {
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highlight.highlightBlock(blocks[i]);
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} else {
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// Only syntax highlight if there's a class starting with language-
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const classes = blocks[i].className.split(/\s+/).filter(function(cl) {
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return cl.startsWith('language-');
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});
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if (classes.length != 0) {
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highlight.highlightBlock(blocks[i]);
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}
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}
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}
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}, 10);
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}
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this._addCodeCopyButton();
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}
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},
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componentDidUpdate: function(prevProps) {
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if (!this.props.editState) {
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const stoppedEditing = prevProps.editState && !this.props.editState;
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const messageWasEdited = prevProps.replacingEventId !== this.props.replacingEventId;
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if (messageWasEdited || stoppedEditing) {
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this._applyFormatting();
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}
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}
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},
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componentWillUnmount: function() {
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this._unmounted = true;
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},
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shouldComponentUpdate: function(nextProps, nextState) {
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//console.log("shouldComponentUpdate: ShowUrlPreview for %s is %s", this.props.mxEvent.getId(), this.props.showUrlPreview);
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// exploit that events are immutable :)
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return (nextProps.mxEvent.getId() !== this.props.mxEvent.getId() ||
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nextProps.highlights !== this.props.highlights ||
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nextProps.replacingEventId !== this.props.replacingEventId ||
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nextProps.highlightLink !== this.props.highlightLink ||
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nextProps.showUrlPreview !== this.props.showUrlPreview ||
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nextProps.editState !== this.props.editState ||
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nextState.links !== this.state.links ||
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nextState.editedMarkerHovered !== this.state.editedMarkerHovered ||
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nextState.widgetHidden !== this.state.widgetHidden);
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},
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calculateUrlPreview: function() {
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//console.log("calculateUrlPreview: ShowUrlPreview for %s is %s", this.props.mxEvent.getId(), this.props.showUrlPreview);
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if (this.props.showUrlPreview) {
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let links = this.findLinks(this.refs.content.children);
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if (links.length) {
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// de-dup the links (but preserve ordering)
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const seen = new Set();
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links = links.filter((link) => {
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if (seen.has(link)) return false;
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seen.add(link);
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return true;
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});
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this.setState({ links: links });
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// lazy-load the hidden state of the preview widget from localstorage
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if (global.localStorage) {
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const hidden = global.localStorage.getItem("hide_preview_" + this.props.mxEvent.getId());
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this.setState({ widgetHidden: hidden });
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}
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}
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}
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},
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activateSpoilers: function(nodes) {
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let node = nodes[0];
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while (node) {
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if (node.tagName === "SPAN" && typeof node.getAttribute("data-mx-spoiler") === "string") {
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const spoilerContainer = document.createElement('span');
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const reason = node.getAttribute("data-mx-spoiler");
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const Spoiler = sdk.getComponent('elements.Spoiler');
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node.removeAttribute("data-mx-spoiler"); // we don't want to recurse
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const spoiler = <Spoiler
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reason={reason}
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contentHtml={node.outerHTML}
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/>;
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ReactDOM.render(spoiler, spoilerContainer);
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node.parentNode.replaceChild(spoilerContainer, node);
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node = spoilerContainer;
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}
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if (node.childNodes && node.childNodes.length) {
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this.activateSpoilers(node.childNodes);
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}
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node = node.nextSibling;
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}
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},
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findLinks: function(nodes) {
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let links = [];
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for (let i = 0; i < nodes.length; i++) {
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const node = nodes[i];
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if (node.tagName === "A" && node.getAttribute("href")) {
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if (this.isLinkPreviewable(node)) {
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links.push(node.getAttribute("href"));
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}
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} else if (node.tagName === "PRE" || node.tagName === "CODE" ||
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node.tagName === "BLOCKQUOTE") {
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continue;
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} else if (node.children && node.children.length) {
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links = links.concat(this.findLinks(node.children));
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}
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}
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return links;
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},
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isLinkPreviewable: function(node) {
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// don't try to preview relative links
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if (!node.getAttribute("href").startsWith("http://") &&
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!node.getAttribute("href").startsWith("https://")) {
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return false;
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}
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// as a random heuristic to avoid highlighting things like "foo.pl"
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// we require the linked text to either include a / (either from http://
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// or from a full foo.bar/baz style schemeless URL) - or be a markdown-style
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// link, in which case we check the target text differs from the link value.
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// TODO: make this configurable?
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if (node.textContent.indexOf("/") > -1) {
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return true;
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} else {
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const url = node.getAttribute("href");
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const host = url.match(/^https?:\/\/(.*?)(\/|$)/)[1];
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// never preview matrix.to links (if anything we should give a smart
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// preview of the room/user they point to: nobody needs to be reminded
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// what the matrix.to site looks like).
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if (host === matrixtoHost) return false;
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if (node.textContent.toLowerCase().trim().startsWith(host.toLowerCase())) {
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// it's a "foo.pl" style link
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return false;
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} else {
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// it's a [foo bar](http://foo.com) style link
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return true;
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}
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}
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},
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_addCodeCopyButton() {
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// Add 'copy' buttons to pre blocks
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Array.from(ReactDOM.findDOMNode(this).querySelectorAll('.mx_EventTile_body pre')).forEach((p) => {
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const button = document.createElement("span");
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button.className = "mx_EventTile_copyButton";
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button.onclick = (e) => {
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const copyCode = button.parentNode.getElementsByTagName("code")[0];
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const successful = this.copyToClipboard(copyCode.textContent);
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const GenericTextContextMenu = sdk.getComponent('context_menus.GenericTextContextMenu');
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const buttonRect = e.target.getBoundingClientRect();
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// The window X and Y offsets are to adjust position when zoomed in to page
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const x = buttonRect.right + window.pageXOffset;
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const y = (buttonRect.top + (buttonRect.height / 2) + window.pageYOffset) - 19;
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const {close} = ContextualMenu.createMenu(GenericTextContextMenu, {
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chevronOffset: 10,
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left: x,
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top: y,
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message: successful ? _t('Copied!') : _t('Failed to copy'),
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}, false);
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e.target.onmouseleave = close;
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};
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// Wrap a div around <pre> so that the copy button can be correctly positioned
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// when the <pre> overflows and is scrolled horizontally.
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const div = document.createElement("div");
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div.className = "mx_EventTile_pre_container";
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// Insert containing div in place of <pre> block
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p.parentNode.replaceChild(div, p);
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// Append <pre> block and copy button to container
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div.appendChild(p);
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div.appendChild(button);
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});
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},
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onCancelClick: function(event) {
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this.setState({ widgetHidden: true });
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// FIXME: persist this somewhere smarter than local storage
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if (global.localStorage) {
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global.localStorage.setItem("hide_preview_" + this.props.mxEvent.getId(), "1");
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}
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this.forceUpdate();
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},
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onEmoteSenderClick: function(event) {
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const mxEvent = this.props.mxEvent;
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dis.dispatch({
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action: 'insert_mention',
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user_id: mxEvent.getSender(),
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});
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},
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getEventTileOps: function() {
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return {
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isWidgetHidden: () => {
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return this.state.widgetHidden;
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},
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unhideWidget: () => {
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this.setState({ widgetHidden: false });
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if (global.localStorage) {
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global.localStorage.removeItem("hide_preview_" + this.props.mxEvent.getId());
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}
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},
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getInnerText: () => {
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return this.refs.content.innerText;
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},
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};
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},
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onStarterLinkClick: function(starterLink, ev) {
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ev.preventDefault();
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// We need to add on our scalar token to the starter link, but we may not have one!
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// In addition, we can't fetch one on click and then go to it immediately as that
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// is then treated as a popup!
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// We can get around this by fetching one now and showing a "confirmation dialog" (hurr hurr)
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// which requires the user to click through and THEN we can open the link in a new tab because
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// the window.open command occurs in the same stack frame as the onClick callback.
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const managers = IntegrationManagers.sharedInstance();
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if (!managers.hasManager()) {
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managers.openNoManagerDialog();
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return;
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}
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// Go fetch a scalar token
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const integrationManager = managers.getPrimaryManager();
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const scalarClient = integrationManager.getScalarClient();
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scalarClient.connect().then(() => {
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const completeUrl = scalarClient.getStarterLink(starterLink);
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const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
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const integrationsUrl = integrationManager.uiUrl;
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Modal.createTrackedDialog('Add an integration', '', QuestionDialog, {
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title: _t("Add an Integration"),
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description:
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<div>
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{ _t("You are about to be taken to a third-party site so you can " +
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"authenticate your account for use with %(integrationsUrl)s. " +
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"Do you wish to continue?", { integrationsUrl: integrationsUrl }) }
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</div>,
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button: _t("Continue"),
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onFinished: function(confirmed) {
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if (!confirmed) {
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return;
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}
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const width = window.screen.width > 1024 ? 1024 : window.screen.width;
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const height = window.screen.height > 800 ? 800 : window.screen.height;
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const left = (window.screen.width - width) / 2;
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const top = (window.screen.height - height) / 2;
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window.open(completeUrl, '_blank', `height=${height}, width=${width}, top=${top}, left=${left},`);
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},
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});
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});
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},
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_onMouseEnterEditedMarker: function() {
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this.setState({editedMarkerHovered: true});
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},
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_onMouseLeaveEditedMarker: function() {
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this.setState({editedMarkerHovered: false});
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},
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_openHistoryDialog: async function() {
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const MessageEditHistoryDialog = sdk.getComponent("views.dialogs.MessageEditHistoryDialog");
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Modal.createDialog(MessageEditHistoryDialog, {mxEvent: this.props.mxEvent});
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},
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_renderEditedMarker: function() {
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let editedTooltip;
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if (this.state.editedMarkerHovered) {
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const Tooltip = sdk.getComponent('elements.Tooltip');
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const date = this.props.mxEvent.replacingEventDate();
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const dateString = date && formatDate(date);
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editedTooltip = <Tooltip
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tooltipClassName="mx_Tooltip_timeline"
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label={_t("Edited at %(date)s. Click to view edits.", {date: dateString})}
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/>;
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}
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return (
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<div
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key="editedMarker" className="mx_EventTile_edited"
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onClick={this._openHistoryDialog}
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onMouseEnter={this._onMouseEnterEditedMarker}
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onMouseLeave={this._onMouseLeaveEditedMarker}
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>{editedTooltip}<span>{`(${_t("edited")})`}</span></div>
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);
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},
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render: function() {
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if (this.props.editState) {
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const EditMessageComposer = sdk.getComponent('rooms.EditMessageComposer');
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return <EditMessageComposer editState={this.props.editState} className="mx_EventTile_content" />;
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}
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const mxEvent = this.props.mxEvent;
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const content = mxEvent.getContent();
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const stripReply = ReplyThread.getParentEventId(mxEvent);
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let body = HtmlUtils.bodyToHtml(content, this.props.highlights, {
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disableBigEmoji: content.msgtype === "m.emote" || !SettingsStore.getValue('TextualBody.enableBigEmoji'),
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// Part of Replies fallback support
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stripReplyFallback: stripReply,
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});
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if (this.props.replacingEventId) {
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body = [body, this._renderEditedMarker()];
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}
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if (this.props.highlightLink) {
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body = <a href={this.props.highlightLink}>{ body }</a>;
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} else if (content.data && typeof content.data["org.matrix.neb.starter_link"] === "string") {
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body = <a href="#" onClick={this.onStarterLinkClick.bind(this, content.data["org.matrix.neb.starter_link"])}>{ body }</a>;
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}
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let widgets;
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if (this.state.links.length && !this.state.widgetHidden && this.props.showUrlPreview) {
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const LinkPreviewWidget = sdk.getComponent('rooms.LinkPreviewWidget');
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widgets = this.state.links.map((link)=>{
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return <LinkPreviewWidget
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key={link}
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link={link}
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mxEvent={this.props.mxEvent}
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onCancelClick={this.onCancelClick}
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onHeightChanged={this.props.onHeightChanged} />;
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});
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}
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switch (content.msgtype) {
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case "m.emote":
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const name = mxEvent.sender ? mxEvent.sender.name : mxEvent.getSender();
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return (
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<span ref="content" className="mx_MEmoteBody mx_EventTile_content">
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*
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<span
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className="mx_MEmoteBody_sender"
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onClick={this.onEmoteSenderClick}
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>
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{ name }
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</span>
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{ body }
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{ widgets }
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</span>
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);
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case "m.notice":
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return (
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<span ref="content" className="mx_MNoticeBody mx_EventTile_content">
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{ body }
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{ widgets }
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</span>
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);
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default: // including "m.text"
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return (
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<span ref="content" className="mx_MTextBody mx_EventTile_content">
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{ body }
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{ widgets }
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</span>
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);
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}
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},
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});
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