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Merge pull request #6113 from matrix-org/gsouquet/improve-layout-rendering

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Germain 2021-06-02 11:41:59 +01:00 • committed by GitHub
commit 9d126c51e4
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9 changed files with 92 additions and 60 deletions
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51
src/components/structures/AutoHideScrollbar.js
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@ -1,51 +0,0 @@
/*
Copyright 2018 New Vector Ltd
Copyright 2020 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import React from "react";
export default class AutoHideScrollbar extends React.Component {
constructor(props) {
super(props);
this._collectContainerRef = this._collectContainerRef.bind(this);
}
_collectContainerRef(ref) {
if (ref && !this.containerRef) {
this.containerRef = ref;
}
if (this.props.wrappedRef) {
this.props.wrappedRef(ref);
}
}
getScrollTop() {
return this.containerRef.scrollTop;
}
render() {
return (<div
ref={this._collectContainerRef}
style={this.props.style}
className={["mx_AutoHideScrollbar", this.props.className].join(" ")}
onScroll={this.props.onScroll}
onWheel={this.props.onWheel}
tabIndex={this.props.tabIndex}
>
{ this.props.children }
</div>);
}
}

65
src/components/structures/AutoHideScrollbar.tsx Normal file
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@ -0,0 +1,65 @@
/*
Copyright 2018 New Vector Ltd
Copyright 2020 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import React from "react";
interface IProps {
className?: string;
onScroll?: () => void;
onWheel?: () => void;
style?: React.CSSProperties
tabIndex?: number,
wrappedRef?: (ref: HTMLDivElement) => void;
}
export default class AutoHideScrollbar extends React.Component<IProps> {
private containerRef: React.RefObject<HTMLDivElement> = React.createRef();
public componentDidMount() {
if (this.containerRef.current && this.props.onScroll) {
// Using the passive option to not block the main thread
// https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#improving_scrolling_performance_with_passive_listeners
this.containerRef.current.addEventListener("scroll", this.props.onScroll, { passive: true });
}
if (this.props.wrappedRef) {
this.props.wrappedRef(this.containerRef.current);
}
}
public componentWillUnmount() {
if (this.containerRef.current && this.props.onScroll) {
this.containerRef.current.removeEventListener("scroll", this.props.onScroll);
}
}
public getScrollTop(): number {
return this.containerRef.current.scrollTop;
}
public render() {
return (<div
ref={this.containerRef}
style={this.props.style}
className={["mx_AutoHideScrollbar", this.props.className].join(" ")}
onWheel={this.props.onWheel}
tabIndex={this.props.tabIndex}
>
{ this.props.children }
</div>);
}
}

4
src/components/structures/IndicatorScrollbar.js
View file

@ -59,7 +59,9 @@ export default class IndicatorScrollbar extends React.Component {
_collectScroller(scroller) {
if (scroller && !this._scrollElement) {
this._scrollElement = scroller;
this._scrollElement.addEventListener("scroll", this.checkOverflow);
// Using the passive option to not block the main thread
// https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#improving_scrolling_performance_with_passive_listeners
this._scrollElement.addEventListener("scroll", this.checkOverflow, { passive: true });
this.checkOverflow();
}
}

7
src/components/structures/LeftPanel.tsx
View file

@ -97,6 +97,9 @@ export default class LeftPanel extends React.Component<IProps, IState> {
public componentDidMount() {
UIStore.instance.trackElementDimensions("ListContainer", this.listContainerRef.current);
UIStore.instance.on("ListContainer", this.refreshStickyHeaders);
// Using the passive option to not block the main thread
// https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#improving_scrolling_performance_with_passive_listeners
this.listContainerRef.current?.addEventListener("scroll", this.onScroll, { passive: true });
}
public componentWillUnmount() {
@ -108,6 +111,7 @@ export default class LeftPanel extends React.Component<IProps, IState> {
SpaceStore.instance.off(UPDATE_SELECTED_SPACE, this.updateActiveSpace);
UIStore.instance.stopTrackingElementDimensions("ListContainer");
UIStore.instance.removeListener("ListContainer", this.refreshStickyHeaders);
this.listContainerRef.current?.removeEventListener("scroll", this.onScroll);
}
public componentDidUpdate(prevProps: IProps, prevState: IState): void {
@ -295,7 +299,7 @@ export default class LeftPanel extends React.Component<IProps, IState> {
}
}
private onScroll = (ev: React.MouseEvent<HTMLDivElement>) => {
private onScroll = (ev: Event) => {
const list = ev.target as HTMLDivElement;
this.handleStickyHeaders(list);
};
@ -459,7 +463,6 @@ export default class LeftPanel extends React.Component<IProps, IState> {
<div className="mx_LeftPanel_roomListWrapper">
<div
className={roomListClasses}
onScroll={this.onScroll}
ref={this.listContainerRef}
// Firefox sometimes makes this element focusable due to
// overflow:scroll;, so force it out of tab order.