2015-11-27 18:02:32 +03:00
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/*
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2016-01-07 07:06:39 +03:00
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Copyright 2015, 2016 OpenMarket Ltd
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2015-11-27 18:02:32 +03:00
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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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'use strict';
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var React = require('react');
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2015-11-29 00:12:02 +03:00
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var ReactDOM = require('react-dom');
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2015-11-27 18:02:32 +03:00
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var HtmlUtils = require('../../../HtmlUtils');
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var linkify = require('linkifyjs');
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var linkifyElement = require('linkifyjs/element');
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var linkifyMatrix = require('../../../linkify-matrix');
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2016-03-31 20:38:01 +03:00
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var sdk = require('../../../index');
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linkifyMatrix(linkify);
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module.exports = React.createClass({
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2015-11-30 18:19:43 +03:00
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displayName: 'TextualBody',
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propTypes: {
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/* the MatrixEvent to show */
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mxEvent: React.PropTypes.object.isRequired,
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/* a list of words to highlight */
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highlights: React.PropTypes.array,
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/* link URL for the highlights */
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highlightLink: React.PropTypes.string,
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/* callback for when our widget has loaded */
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onWidgetLoad: React.PropTypes.func,
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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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componentDidMount: function() {
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linkifyElement(this.refs.content, linkifyMatrix.options);
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var links = this.findLinks(this.refs.content.children);
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if (links.length) {
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this.setState({ links: links.map((link)=>{
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return link.getAttribute("href");
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})});
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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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var 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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if (this.props.mxEvent.getContent().format === "org.matrix.custom.html")
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HtmlUtils.highlightDom(ReactDOM.findDOMNode(this));
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},
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shouldComponentUpdate: function(nextProps, nextState) {
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// exploit that events are immutable :)
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// ...and that .links is only ever set in componentDidMount and never changes
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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.highlightLink !== this.props.highlightLink ||
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nextState.links !== this.state.links ||
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nextState.widgetHidden !== this.state.widgetHidden);
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},
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findLinks: function(nodes) {
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var links = [];
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for (var i = 0; i < nodes.length; i++) {
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var node = nodes[i];
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if (node.tagName === "A" && node.getAttribute("href"))
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{
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if (this.isLinkPreviewable(node)) {
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links.push(node);
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}
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}
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else if (node.tagName === "PRE" || node.tagName === "CODE") {
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continue;
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}
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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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{
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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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{
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return node;
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}
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else {
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var url = node.getAttribute("href");
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var host = url.match(/^https?:\/\/(.*?)(\/|$)/)[1];
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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;
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}
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else {
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// it's a [foo bar](http://foo.com) style link
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return node;
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}
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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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getEventTileOps: function() {
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var self = this;
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return {
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isWidgetHidden: function() {
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return self.state.widgetHidden;
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},
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unhideWidget: function() {
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self.setState({ widgetHidden: false });
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if (global.localStorage) {
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global.localStorage.removeItem("hide_preview_" + self.props.mxEvent.getId());
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}
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},
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}
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},
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render: function() {
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var mxEvent = this.props.mxEvent;
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var content = mxEvent.getContent();
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var body = HtmlUtils.bodyToHtml(content, this.props.highlights,
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{highlightLink: this.props.highlightLink});
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var widgets;
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if (this.state.links.length && !this.state.widgetHidden) {
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var 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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onWidgetLoad={ this.props.onWidgetLoad }/>;
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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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var 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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* { name } { 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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