diff options
Diffstat (limited to 'app/javascript/flavours/glitch/components/status_content.js')
| -rw-r--r-- | app/javascript/flavours/glitch/components/status_content.js | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/components/status_content.js b/app/javascript/flavours/glitch/components/status_content.js new file mode 100644 index 000000000..1d32b35e5 --- /dev/null +++ b/app/javascript/flavours/glitch/components/status_content.js @@ -0,0 +1,395 @@ +import React from 'react'; +import ImmutablePropTypes from 'react-immutable-proptypes'; +import PropTypes from 'prop-types'; +import { FormattedMessage } from 'react-intl'; +import Permalink from './permalink'; +import classnames from 'classnames'; +import Icon from 'flavours/glitch/components/icon'; +import { autoPlayGif } from 'flavours/glitch/util/initial_state'; +import { decode as decodeIDNA } from 'flavours/glitch/util/idna'; + +const textMatchesTarget = (text, origin, host) => { + return (text === origin || text === host + || text.startsWith(origin + '/') || text.startsWith(host + '/') + || 'www.' + text === host || ('www.' + text).startsWith(host + '/')); +} + +const isLinkMisleading = (link) => { + let linkTextParts = []; + + // Reconstruct visible text, as we do not have much control over how links + // from remote software look, and we can't rely on `innerText` because the + // `invisible` class does not set `display` to `none`. + + const walk = (node) => { + switch (node.nodeType) { + case Node.TEXT_NODE: + linkTextParts.push(node.textContent); + break; + case Node.ELEMENT_NODE: + if (node.classList.contains('invisible')) return; + const children = node.childNodes; + for (let i = 0; i < children.length; i++) { + walk(children[i]); + } + break; + } + }; + + walk(link); + + const linkText = linkTextParts.join(''); + const targetURL = new URL(link.href); + + if (targetURL.protocol === 'magnet:') { + return !linkText.startsWith('magnet:'); + } + + if (targetURL.protocol === 'xmpp:') { + return !(linkText === targetURL.href || 'xmpp:' + linkText === targetURL.href); + } + + // The following may not work with international domain names + if (textMatchesTarget(linkText, targetURL.origin, targetURL.host) || textMatchesTarget(linkText.toLowerCase(), targetURL.origin, targetURL.host)) { + return false; + } + + // The link hasn't been recognized, maybe it features an international domain name + const hostname = decodeIDNA(targetURL.hostname).normalize('NFKC'); + const host = targetURL.host.replace(targetURL.hostname, hostname); + const origin = targetURL.origin.replace(targetURL.host, host); + const text = linkText.normalize('NFKC'); + return !(textMatchesTarget(text, origin, host) || textMatchesTarget(text.toLowerCase(), origin, host)); +}; + +export default class StatusContent extends React.PureComponent { + + static propTypes = { + status: ImmutablePropTypes.map.isRequired, + expanded: PropTypes.bool, + collapsed: PropTypes.bool, + onExpandedToggle: PropTypes.func, + media: PropTypes.node, + mediaIcons: PropTypes.arrayOf(PropTypes.string), + parseClick: PropTypes.func, + disabled: PropTypes.bool, + onUpdate: PropTypes.func, + tagLinks: PropTypes.bool, + rewriteMentions: PropTypes.string, + }; + + static defaultProps = { + tagLinks: true, + rewriteMentions: 'no', + }; + + state = { + hidden: true, + }; + + _updateStatusLinks () { + const node = this.contentsNode; + const { tagLinks, rewriteMentions } = this.props; + + if (!node) { + return; + } + + const links = node.querySelectorAll('a'); + + for (var i = 0; i < links.length; ++i) { + let link = links[i]; + if (link.classList.contains('status-link')) { + continue; + } + link.classList.add('status-link'); + + let mention = this.props.status.get('mentions').find(item => link.href === item.get('url')); + + if (mention) { + link.addEventListener('click', this.onMentionClick.bind(this, mention), false); + link.setAttribute('title', mention.get('acct')); + if (rewriteMentions !== 'no') { + while (link.firstChild) link.removeChild(link.firstChild); + link.appendChild(document.createTextNode('@')); + const acctSpan = document.createElement('span'); + acctSpan.textContent = rewriteMentions === 'acct' ? mention.get('acct') : mention.get('username'); + link.appendChild(acctSpan); + } + } else if (link.textContent[0] === '#' || (link.previousSibling && link.previousSibling.textContent && link.previousSibling.textContent[link.previousSibling.textContent.length - 1] === '#')) { + link.addEventListener('click', this.onHashtagClick.bind(this, link.text), false); + } else { + link.addEventListener('click', this.onLinkClick.bind(this), false); + link.setAttribute('title', link.href); + link.classList.add('unhandled-link'); + + try { + if (tagLinks && isLinkMisleading(link)) { + // Add a tag besides the link to display its origin + + const url = new URL(link.href); + const tag = document.createElement('span'); + tag.classList.add('link-origin-tag'); + switch (url.protocol) { + case 'xmpp:': + tag.textContent = `[${url.href}]`; + break; + case 'magnet:': + tag.textContent = '(magnet)'; + break; + default: + tag.textContent = `[${url.host}]`; + } + link.insertAdjacentText('beforeend', ' '); + link.insertAdjacentElement('beforeend', tag); + } + } catch (e) { + // The URL is invalid, remove the href just to be safe + if (tagLinks && e instanceof TypeError) link.removeAttribute('href'); + } + } + + link.setAttribute('target', '_blank'); + link.setAttribute('rel', 'noopener noreferrer'); + } + } + + handleMouseEnter = ({ currentTarget }) => { + if (autoPlayGif) { + return; + } + + const emojis = currentTarget.querySelectorAll('.custom-emoji'); + + for (var i = 0; i < emojis.length; i++) { + let emoji = emojis[i]; + emoji.src = emoji.getAttribute('data-original'); + } + } + + handleMouseLeave = ({ currentTarget }) => { + if (autoPlayGif) { + return; + } + + const emojis = currentTarget.querySelectorAll('.custom-emoji'); + + for (var i = 0; i < emojis.length; i++) { + let emoji = emojis[i]; + emoji.src = emoji.getAttribute('data-static'); + } + } + + componentDidMount () { + this._updateStatusLinks(); + } + + componentDidUpdate () { + this._updateStatusLinks(); + if (this.props.onUpdate) this.props.onUpdate(); + } + + onLinkClick = (e) => { + if (this.props.collapsed) { + if (this.props.parseClick) this.props.parseClick(e); + } + } + + onMentionClick = (mention, e) => { + if (this.props.parseClick) { + this.props.parseClick(e, `/@${mention.get('acct')}`); + } + } + + onHashtagClick = (hashtag, e) => { + hashtag = hashtag.replace(/^#/, ''); + + if (this.props.parseClick) { + this.props.parseClick(e, `/tags/${hashtag}`); + } + } + + handleMouseDown = (e) => { + this.startXY = [e.clientX, e.clientY]; + } + + handleMouseUp = (e) => { + const { parseClick, disabled } = this.props; + + if (disabled || !this.startXY) { + return; + } + + const [ startX, startY ] = this.startXY; + const [ deltaX, deltaY ] = [Math.abs(e.clientX - startX), Math.abs(e.clientY - startY)]; + + let element = e.target; + while (element !== e.currentTarget) { + if (['button', 'video', 'a', 'label', 'canvas'].includes(element.localName) || element.getAttribute('role') === 'button') { + return; + } + element = element.parentNode; + } + + if (deltaX + deltaY < 5 && e.button === 0 && parseClick) { + parseClick(e); + } + + this.startXY = null; + } + + handleSpoilerClick = (e) => { + e.preventDefault(); + + if (this.props.onExpandedToggle) { + this.props.onExpandedToggle(); + } else { + this.setState({ hidden: !this.state.hidden }); + } + } + + setContentsRef = (c) => { + this.contentsNode = c; + } + + render () { + const { + status, + media, + mediaIcons, + parseClick, + disabled, + tagLinks, + rewriteMentions, + } = this.props; + + const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden; + + const content = { __html: status.get('contentHtml') }; + const spoilerContent = { __html: status.get('spoilerHtml') }; + const classNames = classnames('status__content', { + 'status__content--with-action': parseClick && !disabled, + 'status__content--with-spoiler': status.get('spoiler_text').length > 0, + }); + + if (status.get('spoiler_text').length > 0) { + let mentionsPlaceholder = ''; + + const mentionLinks = status.get('mentions').map(item => ( + <Permalink + to={`/@${item.get('acct')}`} + href={item.get('url')} + key={item.get('id')} + className='mention' + > + @<span>{item.get('username')}</span> + </Permalink> + )).reduce((aggregate, item) => [...aggregate, item, ' '], []); + + let toggleText = null; + if (hidden) { + toggleText = [ + <FormattedMessage + id='status.show_more' + defaultMessage='Show more' + key='0' + />, + ]; + if (mediaIcons) { + mediaIcons.forEach((mediaIcon, idx) => { + toggleText.push( + <Icon + fixedWidth + className='status__content__spoiler-icon' + id={mediaIcon} + aria-hidden='true' + key={`icon-${idx}`} + />, + ); + }); + } + } else { + toggleText = ( + <FormattedMessage + id='status.show_less' + defaultMessage='Show less' + key='0' + /> + ); + } + + if (hidden) { + mentionsPlaceholder = <div>{mentionLinks}</div>; + } + + return ( + <div className={classNames} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp}> + <p + style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }} + > + <span dangerouslySetInnerHTML={spoilerContent} className='translate' /> + {' '} + <button tabIndex='0' className='status__content__spoiler-link' onClick={this.handleSpoilerClick}> + {toggleText} + </button> + </p> + + {mentionsPlaceholder} + + <div className={`status__content__spoiler ${!hidden ? 'status__content__spoiler--visible' : ''}`}> + <div + ref={this.setContentsRef} + key={`contents-${tagLinks}`} + tabIndex={!hidden ? 0 : null} + dangerouslySetInnerHTML={content} + className='status__content__text translate' + onMouseEnter={this.handleMouseEnter} + onMouseLeave={this.handleMouseLeave} + /> + {media} + </div> + + </div> + ); + } else if (parseClick) { + return ( + <div + className={classNames} + onMouseDown={this.handleMouseDown} + onMouseUp={this.handleMouseUp} + tabIndex='0' + > + <div + ref={this.setContentsRef} + key={`contents-${tagLinks}-${rewriteMentions}`} + dangerouslySetInnerHTML={content} + className='status__content__text translate' + tabIndex='0' + onMouseEnter={this.handleMouseEnter} + onMouseLeave={this.handleMouseLeave} + /> + {media} + </div> + ); + } else { + return ( + <div + className='status__content' + tabIndex='0' + > + <div + ref={this.setContentsRef} + key={`contents-${tagLinks}`} + className='status__content__text translate' + dangerouslySetInnerHTML={content} + tabIndex='0' + onMouseEnter={this.handleMouseEnter} + onMouseLeave={this.handleMouseLeave} + /> + {media} + </div> + ); + } + } + +} |