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[Glitch] Fix “slow mode” issues

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Port f109867578 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>
This commit is contained in:
ThibG
2019-09-16 15:45:06 +02:00
committed by Thibaut Girka
parent 15a37a967c
commit 75673cf8e3
5 changed files with 18 additions and 7 deletions
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11
app/javascript/flavours/glitch/components/scrollable_list.js
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@ -153,7 +153,9 @@ export default class ScrollableList extends PureComponent {
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 || this.mouseMovedRecently)) {
const pendingChanged = (prevProps.numPending > 0) !== (this.props.numPending > 0);
if (pendingChanged || someItemInserted && (this.node.scrollTop > 0 || this.mouseMovedRecently)) {
return this.node.scrollHeight - this.node.scrollTop;
} else {
return null;
@ -228,6 +230,13 @@ export default class ScrollableList extends PureComponent {
handleLoadPending = e => {
e.preventDefault();
this.props.onLoadPending();
// Prevent the weird scroll-jumping behavior, as we explicitly don't want to
// scroll to top, and we know the scroll height is going to change
this.scrollToTopOnMouseIdle = false;
this.lastScrollWasSynthetic = false;
this.clearMouseIdleTimer();
this.mouseIdleTimer = setTimeout(this.handleMouseIdle, MOUSE_IDLE_DELAY);
this.mouseMovedRecently = true;
}
render () {