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fix(status_list): Update scroll position after toots are appended (#4277)

shrike
Sorin Davidoi 2017-07-19 22:38:26 +02:00 committed by Eugen Rochko
parent dcb9497148
commit e01966f7b8
1 changed files with 8 additions and 7 deletions
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15
app/javascript/mastodon/components/status_list.js
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@ -57,13 +57,14 @@ export default class StatusList extends ImmutablePureComponent {
componentDidUpdate (prevProps) {
// Reset the scroll position when a new toot comes in in order not to
// jerk the scrollbar around if you're already scrolled down the page.
if (prevProps.statusIds.size < this.props.statusIds.size &&
prevProps.statusIds.first() !== this.props.statusIds.first() &&
this._oldScrollPosition &&
this.node.scrollTop > 0) {
let newScrollTop = this.node.scrollHeight - this._oldScrollPosition;
if (this.node.scrollTop !== newScrollTop) {
this.node.scrollTop = newScrollTop;
if (prevProps.statusIds.size < this.props.statusIds.size && this._oldScrollPosition && this.node.scrollTop > 0) {
if (prevProps.statusIds.first() !== this.props.statusIds.first()) {
let newScrollTop = this.node.scrollHeight - this._oldScrollPosition;
if (this.node.scrollTop !== newScrollTop) {
this.node.scrollTop = newScrollTop;
}
} else {
this._oldScrollPosition = this.node.scrollHeight - this.node.scrollTop;
}
}
}