377 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			377 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
| import React from 'react';
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| import ImmutablePropTypes from 'react-immutable-proptypes';
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| import PropTypes from 'prop-types';
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| import { isRtl } from 'flavours/glitch/util/rtl';
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| import { FormattedMessage } from 'react-intl';
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| import Permalink from './permalink';
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| import classnames from 'classnames';
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| import Icon from 'flavours/glitch/components/icon';
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| import { autoPlayGif } from 'flavours/glitch/util/initial_state';
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| import { decode as decodeIDNA } from 'flavours/glitch/util/idna';
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| 
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| const textMatchesTarget = (text, origin, host) => {
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|   return (text === origin || text === host
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|           || text.startsWith(origin + '/') || text.startsWith(host + '/')
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|           || 'www.' + text === host || ('www.' + text).startsWith(host + '/'));
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| }
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| 
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| const isLinkMisleading = (link) => {
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|   let linkTextParts = [];
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| 
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|   // Reconstruct visible text, as we do not have much control over how links
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|   // from remote software look, and we can't rely on `innerText` because the
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|   // `invisible` class does not set `display` to `none`.
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| 
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|   const walk = (node) => {
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|     switch (node.nodeType) {
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|     case Node.TEXT_NODE:
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|       linkTextParts.push(node.textContent);
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|       break;
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|     case Node.ELEMENT_NODE:
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|       if (node.classList.contains('invisible')) return;
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|       const children = node.childNodes;
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|       for (let i = 0; i < children.length; i++) {
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|         walk(children[i]);
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|       }
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|       break;
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|     }
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|   };
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| 
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|   walk(link);
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| 
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|   const linkText = linkTextParts.join('');
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|   const targetURL = new URL(link.href);
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| 
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|   // The following may not work with international domain names
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|   if (textMatchesTarget(linkText, targetURL.origin, targetURL.host) || textMatchesTarget(linkText.toLowerCase(), targetURL.origin, targetURL.host)) {
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|     return false;
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|   }
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| 
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|   // The link hasn't been recognized, maybe it features an international domain name
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|   const hostname = decodeIDNA(targetURL.hostname).normalize('NFKC');
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|   const host = targetURL.host.replace(targetURL.hostname, hostname);
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|   const origin = targetURL.origin.replace(targetURL.host, host);
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|   const text = linkText.normalize('NFKC');
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|   return !(textMatchesTarget(text, origin, host) || textMatchesTarget(text.toLowerCase(), origin, host));
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| };
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| 
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| export default class StatusContent extends React.PureComponent {
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| 
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|   static propTypes = {
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|     status: ImmutablePropTypes.map.isRequired,
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|     expanded: PropTypes.bool,
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|     collapsed: PropTypes.bool,
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|     onExpandedToggle: PropTypes.func,
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|     media: PropTypes.element,
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|     mediaIcon: PropTypes.string,
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|     parseClick: PropTypes.func,
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|     disabled: PropTypes.bool,
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|     onUpdate: PropTypes.func,
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|     tagLinks: PropTypes.bool,
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|     rewriteMentions: PropTypes.string,
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|   };
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| 
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|   static defaultProps = {
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|     tagLinks: true,
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|     rewriteMentions: 'no',
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|   };
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| 
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|   state = {
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|     hidden: true,
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|   };
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| 
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|   _updateStatusLinks () {
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|     const node = this.contentsNode;
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|     const { tagLinks, rewriteMentions } = this.props;
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| 
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|     if (!node) {
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|       return;
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|     }
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| 
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|     const links = node.querySelectorAll('a');
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| 
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|     for (var i = 0; i < links.length; ++i) {
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|       let link = links[i];
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|       if (link.classList.contains('status-link')) {
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|         continue;
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|       }
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|       link.classList.add('status-link');
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| 
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|       let mention = this.props.status.get('mentions').find(item => link.href === item.get('url'));
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| 
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|       if (mention) {
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|         link.addEventListener('click', this.onMentionClick.bind(this, mention), false);
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|         link.setAttribute('title', mention.get('acct'));
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|         if (rewriteMentions !== 'no') {
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|           while (link.firstChild) link.removeChild(link.firstChild);
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|           link.appendChild(document.createTextNode('@'));
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|           const acctSpan = document.createElement('span');
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|           acctSpan.textContent = rewriteMentions === 'acct' ? mention.get('acct') : mention.get('username');
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|           link.appendChild(acctSpan);
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|         }
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|       } else if (link.textContent[0] === '#' || (link.previousSibling && link.previousSibling.textContent && link.previousSibling.textContent[link.previousSibling.textContent.length - 1] === '#')) {
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|         link.addEventListener('click', this.onHashtagClick.bind(this, link.text), false);
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|       } else {
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|         link.addEventListener('click', this.onLinkClick.bind(this), false);
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|         link.setAttribute('title', link.href);
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|         link.classList.add('unhandled-link');
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| 
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|         try {
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|           if (tagLinks && isLinkMisleading(link)) {
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|             // Add a tag besides the link to display its origin
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| 
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|             const tag = document.createElement('span');
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|             tag.classList.add('link-origin-tag');
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|             tag.textContent = `[${new URL(link.href).host}]`;
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|             link.insertAdjacentText('beforeend', ' ');
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|             link.insertAdjacentElement('beforeend', tag);
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|           }
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|         } catch (e) {
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|           // The URL is invalid, remove the href just to be safe
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|           if (tagLinks && e instanceof TypeError) link.removeAttribute('href');
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|         }
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|       }
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| 
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|       link.setAttribute('target', '_blank');
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|       link.setAttribute('rel', 'noopener noreferrer');
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|     }
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|   }
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| 
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|   _updateStatusEmojis () {
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|     const node = this.node;
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| 
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|     if (!node || autoPlayGif) {
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|       return;
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|     }
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| 
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|     const emojis = node.querySelectorAll('.custom-emoji');
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| 
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|     for (var i = 0; i < emojis.length; i++) {
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|       let emoji = emojis[i];
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|       if (emoji.classList.contains('status-emoji')) {
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|         continue;
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|       }
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|       emoji.classList.add('status-emoji');
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| 
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|       emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
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|       emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
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|     }
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|   }
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| 
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|   componentDidMount () {
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|     this._updateStatusLinks();
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|     this._updateStatusEmojis();
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|   }
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| 
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|   componentDidUpdate () {
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|     this._updateStatusLinks();
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|     this._updateStatusEmojis();
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|     if (this.props.onUpdate) this.props.onUpdate();
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|   }
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| 
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|   onLinkClick = (e) => {
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|     if (this.props.collapsed) {
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|       if (this.props.parseClick) this.props.parseClick(e);
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|     }
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|   }
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| 
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|   onMentionClick = (mention, e) => {
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|     if (this.props.parseClick) {
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|       this.props.parseClick(e, `/accounts/${mention.get('id')}`);
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|     }
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|   }
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| 
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|   onHashtagClick = (hashtag, e) => {
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|     hashtag = hashtag.replace(/^#/, '');
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| 
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|     if (this.props.parseClick) {
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|       this.props.parseClick(e, `/timelines/tag/${hashtag}`);
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|     }
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|   }
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| 
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|   handleEmojiMouseEnter = ({ target }) => {
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|     target.src = target.getAttribute('data-original');
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|   }
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| 
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|   handleEmojiMouseLeave = ({ target }) => {
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|     target.src = target.getAttribute('data-static');
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|   }
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| 
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|   handleMouseDown = (e) => {
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|     this.startXY = [e.clientX, e.clientY];
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|   }
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| 
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|   handleMouseUp = (e) => {
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|     const { parseClick, disabled } = this.props;
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| 
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|     if (disabled || !this.startXY) {
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|       return;
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|     }
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| 
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|     const [ startX, startY ] = this.startXY;
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|     const [ deltaX, deltaY ] = [Math.abs(e.clientX - startX), Math.abs(e.clientY - startY)];
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| 
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|     let element = e.target;
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|     while (element) {
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|       if (['button', 'video', 'a', 'label', 'wave'].includes(element.localName)) {
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|         return;
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|       }
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|       element = element.parentNode;
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|     }
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| 
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|     if (deltaX + deltaY < 5 && e.button === 0 && parseClick) {
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|       parseClick(e);
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|     }
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| 
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|     this.startXY = null;
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|   }
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| 
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|   handleSpoilerClick = (e) => {
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|     e.preventDefault();
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| 
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|     if (this.props.onExpandedToggle) {
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|       this.props.onExpandedToggle();
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|     } else {
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|       this.setState({ hidden: !this.state.hidden });
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|     }
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|   }
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| 
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|   setRef = (c) => {
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|     this.node = c;
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|   }
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| 
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|   setContentsRef = (c) => {
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|     this.contentsNode = c;
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|   }
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| 
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|   render () {
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|     const {
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|       status,
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|       media,
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|       mediaIcon,
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|       parseClick,
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|       disabled,
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|       tagLinks,
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|       rewriteMentions,
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|     } = this.props;
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| 
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|     const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
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| 
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|     const content = { __html: status.get('contentHtml') };
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|     const spoilerContent = { __html: status.get('spoilerHtml') };
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|     const directionStyle = { direction: 'ltr' };
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|     const classNames = classnames('status__content', {
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|       'status__content--with-action': parseClick && !disabled,
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|       'status__content--with-spoiler': status.get('spoiler_text').length > 0,
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|     });
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| 
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|     if (isRtl(status.get('search_index'))) {
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|       directionStyle.direction = 'rtl';
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|     }
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| 
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|     if (status.get('spoiler_text').length > 0) {
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|       let mentionsPlaceholder = '';
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| 
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|       const mentionLinks = status.get('mentions').map(item => (
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|         <Permalink
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|           to={`/accounts/${item.get('id')}`}
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|           href={item.get('url')}
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|           key={item.get('id')}
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|           className='mention'
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|         >
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|           @<span>{item.get('username')}</span>
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|         </Permalink>
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|       )).reduce((aggregate, item) => [...aggregate, item, ' '], []);
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| 
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|       const toggleText = hidden ? [
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|         <FormattedMessage
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|           id='status.show_more'
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|           defaultMessage='Show more'
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|           key='0'
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|         />,
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|         mediaIcon ? (
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|           <Icon
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|             fixedWidth
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|             className='status__content__spoiler-icon'
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|             id={mediaIcon}
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|             aria-hidden='true'
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|             key='1'
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|           />
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|         ) : null,
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|       ] : [
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|         <FormattedMessage
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|           id='status.show_less'
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|           defaultMessage='Show less'
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|           key='0'
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|         />,
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|       ];
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| 
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|       if (hidden) {
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|         mentionsPlaceholder = <div>{mentionLinks}</div>;
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|       }
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| 
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|       return (
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|         <div className={classNames} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} ref={this.setRef}>
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|           <p
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|             style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }}
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|           >
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|             <span dangerouslySetInnerHTML={spoilerContent} />
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|             {' '}
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|             <button tabIndex='0' className='status__content__spoiler-link' onClick={this.handleSpoilerClick}>
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|               {toggleText}
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|             </button>
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|           </p>
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| 
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|           {mentionsPlaceholder}
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| 
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|           <div className={`status__content__spoiler ${!hidden ? 'status__content__spoiler--visible' : ''}`}>
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|             <div
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|               ref={this.setContentsRef}
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|               key={`contents-${tagLinks}`}
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|               style={directionStyle}
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|               tabIndex={!hidden ? 0 : null}
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|               dangerouslySetInnerHTML={content}
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|               className='status__content__text'
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|             />
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|             {media}
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|           </div>
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| 
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|         </div>
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|       );
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|     } else if (parseClick) {
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|       return (
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|         <div
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|           className={classNames}
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|           style={directionStyle}
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|           onMouseDown={this.handleMouseDown}
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|           onMouseUp={this.handleMouseUp}
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|           tabIndex='0'
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|           ref={this.setRef}
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|         >
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|           <div
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|             ref={this.setContentsRef}
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|             key={`contents-${tagLinks}-${rewriteMentions}`}
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|             dangerouslySetInnerHTML={content}
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|             className='status__content__text'
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|             tabIndex='0'
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|           />
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|           {media}
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|         </div>
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|       );
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|     } else {
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|       return (
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|         <div
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|           className='status__content'
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|           style={directionStyle}
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|           tabIndex='0'
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|           ref={this.setRef}
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|         >
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|           <div ref={this.setContentsRef} key={`contents-${tagLinks}`} className='status__content__text' dangerouslySetInnerHTML={content} tabIndex='0' />
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|           {media}
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|         </div>
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|       );
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|     }
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|   }
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| 
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| }
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