chinwagsocial/app/javascript/mastodon/components/status_content.js

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import React from 'react';
import ImmutablePropTypes from 'react-immutable-proptypes';
import PropTypes from 'prop-types';
import { FormattedMessage, injectIntl } from 'react-intl';
import Permalink from './permalink';
import classnames from 'classnames';
import PollContainer from 'mastodon/containers/poll_container';
import Icon from 'mastodon/components/icon';
import { autoPlayGif, languages as preloadedLanguages, translationEnabled } from 'mastodon/initial_state';
const MAX_HEIGHT = 642; // 20px * 32 (+ 2px padding at the top)
class TranslateButton extends React.PureComponent {
static propTypes = {
translation: ImmutablePropTypes.map,
onClick: PropTypes.func,
};
render () {
const { translation, onClick } = this.props;
if (translation) {
const language = preloadedLanguages.find(lang => lang[0] === translation.get('detected_source_language'));
const languageName = language ? language[2] : translation.get('detected_source_language');
const provider = translation.get('provider');
return (
<div className='translate-button'>
<div className='translate-button__meta'>
<FormattedMessage id='status.translated_from_with' defaultMessage='Translated from {lang} using {provider}' values={{ lang: languageName, provider }} />
</div>
<button className='link-button' onClick={onClick}>
<FormattedMessage id='status.show_original' defaultMessage='Show original' />
</button>
</div>
);
}
return (
<button className='status__content__read-more-button' onClick={onClick}>
<FormattedMessage id='status.translate' defaultMessage='Translate' />
</button>
);
}
}
export default @injectIntl
class StatusContent extends React.PureComponent {
static contextTypes = {
router: PropTypes.object,
identity: PropTypes.object,
};
static propTypes = {
status: ImmutablePropTypes.map.isRequired,
expanded: PropTypes.bool,
onExpandedToggle: PropTypes.func,
onTranslate: PropTypes.func,
onClick: PropTypes.func,
collapsable: PropTypes.bool,
Summary: fix slowness due to layout thrashing when reloading a large … (#12661) * Summary: fix slowness due to layout thrashing when reloading a large set of status updates in order to limit the maximum size of a status in a list view (e.g. the home timeline), so as to avoid having to scroll all the way through an abnormally large status update (see https://github.com/tootsuite/mastodon/pull/8205), the following steps are taken: •the element containing the status is rendered in the browser •its height is calculated, to determine if it exceeds the maximum height threshold. Unfortunately for performance, these steps are carried out in the componentDidMount(/Update) method, which also performs style modifications on the element. The combination of height request and style modification during javascript evaluation in the browser leads to layout-thrashing, where the elements are repeatedly re-laid-out (see https://developers.google.com/web/fundamentals/performance/rendering/avoid-large-complex-layouts-and-layout-thrashing & https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Performance_best_practices_for_Firefox_fe_engineers). The solution implemented here is to memoize the collapsed state in Redux the first time the status is seen (e.g. when fetched as part of a small batch, to populate the home timeline) , so that on subsequent re-renders, the value can be queried, rather than recalculated. This strategy is derived from https://github.com/tootsuite/mastodon/pull/4439 & https://github.com/tootsuite/mastodon/pull/4909, and should resolve https://github.com/tootsuite/mastodon/issues/12455. Andrew Lin (https://github.com/onethreeseven) is thanked for his assistance in root cause analysis and solution brainstorming * remove getSnapshotBeforeUpdate from status * remove componentWillUnmount from status * persist last-intersected status update and restore when ScrollableList is restored e.g. when navigating from home-timeline to a status conversational thread and <Back again * cache currently-viewing status id to avoid calling redux with identical value * refactor collapse toggle to pass explicit boolean
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onCollapsedToggle: PropTypes.func,
intl: PropTypes.object,
};
state = {
hidden: true,
};
_updateStatusLinks () {
const node = this.node;
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'));
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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);
} else {
link.setAttribute('title', link.href);
link.classList.add('unhandled-link');
}
}
Summary: fix slowness due to layout thrashing when reloading a large … (#12661) * Summary: fix slowness due to layout thrashing when reloading a large set of status updates in order to limit the maximum size of a status in a list view (e.g. the home timeline), so as to avoid having to scroll all the way through an abnormally large status update (see https://github.com/tootsuite/mastodon/pull/8205), the following steps are taken: •the element containing the status is rendered in the browser •its height is calculated, to determine if it exceeds the maximum height threshold. Unfortunately for performance, these steps are carried out in the componentDidMount(/Update) method, which also performs style modifications on the element. The combination of height request and style modification during javascript evaluation in the browser leads to layout-thrashing, where the elements are repeatedly re-laid-out (see https://developers.google.com/web/fundamentals/performance/rendering/avoid-large-complex-layouts-and-layout-thrashing & https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Performance_best_practices_for_Firefox_fe_engineers). The solution implemented here is to memoize the collapsed state in Redux the first time the status is seen (e.g. when fetched as part of a small batch, to populate the home timeline) , so that on subsequent re-renders, the value can be queried, rather than recalculated. This strategy is derived from https://github.com/tootsuite/mastodon/pull/4439 & https://github.com/tootsuite/mastodon/pull/4909, and should resolve https://github.com/tootsuite/mastodon/issues/12455. Andrew Lin (https://github.com/onethreeseven) is thanked for his assistance in root cause analysis and solution brainstorming * remove getSnapshotBeforeUpdate from status * remove componentWillUnmount from status * persist last-intersected status update and restore when ScrollableList is restored e.g. when navigating from home-timeline to a status conversational thread and <Back again * cache currently-viewing status id to avoid calling redux with identical value * refactor collapse toggle to pass explicit boolean
2019-12-29 15:39:48 +11:00
if (this.props.status.get('collapsed', null) === null) {
let collapsed =
this.props.collapsable
&& this.props.onClick
&& node.clientHeight > MAX_HEIGHT
&& this.props.status.get('spoiler_text').length === 0;
if(this.props.onCollapsedToggle) this.props.onCollapsedToggle(collapsed);
this.props.status.set('collapsed', collapsed);
}
}
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();
}
onMentionClick = (mention, e) => {
if (this.context.router && e.button === 0 && !(e.ctrlKey || e.metaKey)) {
e.preventDefault();
this.context.router.history.push(`/@${mention.get('acct')}`);
}
}
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onHashtagClick = (hashtag, e) => {
hashtag = hashtag.replace(/^#/, '');
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if (this.context.router && e.button === 0 && !(e.ctrlKey || e.metaKey)) {
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e.preventDefault();
this.context.router.history.push(`/tags/${hashtag}`);
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}
}
handleMouseDown = (e) => {
this.startXY = [e.clientX, e.clientY];
}
handleMouseUp = (e) => {
if (!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) {
if (element.localName === 'button' || element.localName === 'a' || element.localName === 'label') {
return;
}
element = element.parentNode;
}
if (deltaX + deltaY < 5 && e.button === 0 && this.props.onClick) {
this.props.onClick();
}
this.startXY = null;
}
handleSpoilerClick = (e) => {
e.preventDefault();
if (this.props.onExpandedToggle) {
// The parent manages the state
this.props.onExpandedToggle();
} else {
this.setState({ hidden: !this.state.hidden });
}
}
handleTranslate = () => {
this.props.onTranslate();
}
setRef = (c) => {
this.node = c;
}
render () {
const { status, intl } = this.props;
const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
Summary: fix slowness due to layout thrashing when reloading a large … (#12661) * Summary: fix slowness due to layout thrashing when reloading a large set of status updates in order to limit the maximum size of a status in a list view (e.g. the home timeline), so as to avoid having to scroll all the way through an abnormally large status update (see https://github.com/tootsuite/mastodon/pull/8205), the following steps are taken: •the element containing the status is rendered in the browser •its height is calculated, to determine if it exceeds the maximum height threshold. Unfortunately for performance, these steps are carried out in the componentDidMount(/Update) method, which also performs style modifications on the element. The combination of height request and style modification during javascript evaluation in the browser leads to layout-thrashing, where the elements are repeatedly re-laid-out (see https://developers.google.com/web/fundamentals/performance/rendering/avoid-large-complex-layouts-and-layout-thrashing & https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Performance_best_practices_for_Firefox_fe_engineers). The solution implemented here is to memoize the collapsed state in Redux the first time the status is seen (e.g. when fetched as part of a small batch, to populate the home timeline) , so that on subsequent re-renders, the value can be queried, rather than recalculated. This strategy is derived from https://github.com/tootsuite/mastodon/pull/4439 & https://github.com/tootsuite/mastodon/pull/4909, and should resolve https://github.com/tootsuite/mastodon/issues/12455. Andrew Lin (https://github.com/onethreeseven) is thanked for his assistance in root cause analysis and solution brainstorming * remove getSnapshotBeforeUpdate from status * remove componentWillUnmount from status * persist last-intersected status update and restore when ScrollableList is restored e.g. when navigating from home-timeline to a status conversational thread and <Back again * cache currently-viewing status id to avoid calling redux with identical value * refactor collapse toggle to pass explicit boolean
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const renderReadMore = this.props.onClick && status.get('collapsed');
const renderTranslate = translationEnabled && this.context.identity.signedIn && this.props.onTranslate && ['public', 'unlisted'].includes(status.get('visibility')) && status.get('contentHtml').length > 0 && status.get('language') !== null && intl.locale !== status.get('language');
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const content = { __html: status.get('translation') ? status.getIn(['translation', 'content']) : status.get('contentHtml') };
const spoilerContent = { __html: status.get('spoilerHtml') };
const lang = status.get('translation') ? intl.locale : status.get('language');
const classNames = classnames('status__content', {
'status__content--with-action': this.props.onClick && this.context.router,
'status__content--with-spoiler': status.get('spoiler_text').length > 0,
Summary: fix slowness due to layout thrashing when reloading a large … (#12661) * Summary: fix slowness due to layout thrashing when reloading a large set of status updates in order to limit the maximum size of a status in a list view (e.g. the home timeline), so as to avoid having to scroll all the way through an abnormally large status update (see https://github.com/tootsuite/mastodon/pull/8205), the following steps are taken: •the element containing the status is rendered in the browser •its height is calculated, to determine if it exceeds the maximum height threshold. Unfortunately for performance, these steps are carried out in the componentDidMount(/Update) method, which also performs style modifications on the element. The combination of height request and style modification during javascript evaluation in the browser leads to layout-thrashing, where the elements are repeatedly re-laid-out (see https://developers.google.com/web/fundamentals/performance/rendering/avoid-large-complex-layouts-and-layout-thrashing & https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Performance_best_practices_for_Firefox_fe_engineers). The solution implemented here is to memoize the collapsed state in Redux the first time the status is seen (e.g. when fetched as part of a small batch, to populate the home timeline) , so that on subsequent re-renders, the value can be queried, rather than recalculated. This strategy is derived from https://github.com/tootsuite/mastodon/pull/4439 & https://github.com/tootsuite/mastodon/pull/4909, and should resolve https://github.com/tootsuite/mastodon/issues/12455. Andrew Lin (https://github.com/onethreeseven) is thanked for his assistance in root cause analysis and solution brainstorming * remove getSnapshotBeforeUpdate from status * remove componentWillUnmount from status * persist last-intersected status update and restore when ScrollableList is restored e.g. when navigating from home-timeline to a status conversational thread and <Back again * cache currently-viewing status id to avoid calling redux with identical value * refactor collapse toggle to pass explicit boolean
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'status__content--collapsed': renderReadMore,
});
const readMoreButton = renderReadMore && (
<button className='status__content__read-more-button' onClick={this.props.onClick} key='read-more'>
<FormattedMessage id='status.read_more' defaultMessage='Read more' /><Icon id='angle-right' fixedWidth />
</button>
);
const translateButton = renderTranslate && (
<TranslateButton onClick={this.handleTranslate} translation={status.get('translation')} />
);
const poll = !!status.get('poll') && (
<PollContainer pollId={status.get('poll')} />
);
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, ' '], []);
const toggleText = hidden ? <FormattedMessage id='status.show_more' defaultMessage='Show more' /> : <FormattedMessage id='status.show_less' defaultMessage='Show less' />;
if (hidden) {
mentionsPlaceholder = <div>{mentionLinks}</div>;
}
return (
<div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
<p style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }}>
<span dangerouslySetInnerHTML={spoilerContent} className='translate' lang={lang} />
{' '}
<button tabIndex='0' className={`status__content__spoiler-link ${hidden ? 'status__content__spoiler-link--show-more' : 'status__content__spoiler-link--show-less'}`} onClick={this.handleSpoilerClick}>{toggleText}</button>
</p>
{mentionsPlaceholder}
<div tabIndex={!hidden ? 0 : null} className={`status__content__text ${!hidden ? 'status__content__text--visible' : ''} translate`} lang={lang} dangerouslySetInnerHTML={content} />
{!hidden && poll}
{!hidden && translateButton}
</div>
);
} else if (this.props.onClick) {
return (
<>
<div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} key='status-content' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
<div className='status__content__text status__content__text--visible translate' lang={lang} dangerouslySetInnerHTML={content} />
{poll}
{translateButton}
</div>
{readMoreButton}
</>
);
} else {
return (
<div className={classNames} ref={this.setRef} tabIndex='0' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
<div className='status__content__text status__content__text--visible translate' lang={lang} dangerouslySetInnerHTML={content} />
{poll}
{translateButton}
</div>
);
}
}
}