diff options
| -rw-r--r-- | app/javascript/mastodon/components/scrollable_list.js | 32 | ||||
| -rw-r--r-- | package.json | 4 |
2 files changed, 14 insertions, 22 deletions
diff --git a/app/javascript/mastodon/components/scrollable_list.js b/app/javascript/mastodon/components/scrollable_list.js index ee07106f7..fd6858d05 100644 --- a/app/javascript/mastodon/components/scrollable_list.js +++ b/app/javascript/mastodon/components/scrollable_list.js @@ -34,7 +34,7 @@ export default class ScrollableList extends PureComponent { }; state = { - lastMouseMove: null, + fullscreen: null, }; intersectionObserverWrapper = new IntersectionObserverWrapper(); @@ -43,7 +43,6 @@ export default class ScrollableList extends PureComponent { if (this.node) { const { scrollTop, scrollHeight, clientHeight } = this.node; const offset = scrollHeight - scrollTop - clientHeight; - this._oldScrollPosition = scrollHeight - scrollTop; if (400 > offset && this.props.onLoadMore && !this.props.isLoading) { this.props.onLoadMore(); @@ -59,14 +58,6 @@ export default class ScrollableList extends PureComponent { trailing: true, }); - handleMouseMove = throttle(() => { - this._lastMouseMove = new Date(); - }, 300); - - handleMouseLeave = () => { - this._lastMouseMove = null; - } - componentDidMount () { this.attachScrollListener(); this.attachIntersectionObserver(); @@ -76,21 +67,26 @@ export default class ScrollableList extends PureComponent { this.handleScroll(); } - componentDidUpdate (prevProps) { + getSnapshotBeforeUpdate (prevProps) { const someItemInserted = React.Children.count(prevProps.children) > 0 && React.Children.count(prevProps.children) < React.Children.count(this.props.children) && this.getFirstChildKey(prevProps) !== this.getFirstChildKey(this.props); + if (someItemInserted && this.node.scrollTop > 0) { + return this.node.scrollHeight - this.node.scrollTop; + } else { + return null; + } + } + componentDidUpdate (prevProps, prevState, snapshot) { // Reset the scroll position when a new child comes in in order not to // jerk the scrollbar around if you're already scrolled down the page. - if (someItemInserted && this._oldScrollPosition && this.node.scrollTop > 0) { - const newScrollTop = this.node.scrollHeight - this._oldScrollPosition; + if (snapshot !== null) { + const newScrollTop = this.node.scrollHeight - snapshot; if (this.node.scrollTop !== newScrollTop) { this.node.scrollTop = newScrollTop; } - } else { - this._oldScrollPosition = this.node.scrollHeight - this.node.scrollTop; } } @@ -143,10 +139,6 @@ export default class ScrollableList extends PureComponent { this.props.onLoadMore(); } - _recentlyMoved () { - return this._lastMouseMove !== null && ((new Date()) - this._lastMouseMove < 600); - } - render () { const { children, scrollKey, trackScroll, shouldUpdateScroll, isLoading, hasMore, prepend, emptyMessage, onLoadMore } = this.props; const { fullscreen } = this.state; @@ -157,7 +149,7 @@ export default class ScrollableList extends PureComponent { if (isLoading || childrenCount > 0 || !emptyMessage) { scrollableArea = ( - <div className={classNames('scrollable', { fullscreen })} ref={this.setRef} onMouseMove={this.handleMouseMove} onMouseLeave={this.handleMouseLeave}> + <div className={classNames('scrollable', { fullscreen })} ref={this.setRef}> <div role='feed' className='item-list'> {prepend} diff --git a/package.json b/package.json index 9858d28d4..75e9e9f6d 100644 --- a/package.json +++ b/package.json @@ -83,8 +83,8 @@ "prop-types": "^15.5.10", "punycode": "^2.1.0", "rails-ujs": "^5.1.2", - "react": "^16.2.0", - "react-dom": "^16.2.0", + "react": "^16.3.0", + "react-dom": "^16.3.0", "react-hotkeys": "^0.10.0", "react-immutable-proptypes": "^2.1.0", "react-immutable-pure-component": "^1.1.1", |