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wrap roomtiles in LazyRenderList to improve perf for big accounts

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This commit is contained in:
Bruno Windels 2019-02-13 14:51:09 +01:00
parent 0de2161a0d
commit 84163bed11
1 changed files with 47 additions and 23 deletions
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42
src/components/structures/RoomSubList.js
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@ -27,7 +27,9 @@ import IndicatorScrollbar from './IndicatorScrollbar';
import { KeyCode } from '../../Keyboard';
import { Group } from 'matrix-js-sdk';
import PropTypes from 'prop-types';
import RoomTile from "../views/rooms/RoomTile";
import LazyRenderList from "../views/elements/LazyRenderList";
import * as _ from "lodash";
// turn this on for drop & drag console debugging galore
const debug = false;
@ -58,8 +60,20 @@ const RoomSubList = React.createClass({
},
getInitialState: function() {
// throttle updates to LazyRenderList
this._onScroll = _.throttle(
this._onScroll, 100,
{leading: false, trailing: true},
);
this._updateLazyRenderHeight = _.throttle(
this._updateLazyRenderHeight, 100,
{leading: false, trailing: true},
);
return {
hidden: this.props.startAsHidden || false,
// some values to get LazyRenderList starting
scrollerHeight: 800,
scrollTop: 0,
};
},
@ -134,9 +148,7 @@ const RoomSubList = React.createClass({
this.setState(this.state);
},
makeRoomTiles: function() {
const RoomTile = sdk.getComponent("rooms.RoomTile");
return this.props.list.map((room, index) => {
makeRoomTile: function(room) {
return <RoomTile
room={room}
roomSubList={this}
@ -151,7 +163,6 @@ const RoomSubList = React.createClass({
incomingCall={null}
onClick={this.onRoomTileClick}
/>;
});
},
_onNotifBadgeClick: function(e) {
@ -270,6 +281,15 @@ const RoomSubList = React.createClass({
if (this.refs.subList) {
this.refs.subList.style.height = `${height}px`;
}
this._updateLazyRenderHeight(height);
},
_updateLazyRenderHeight: function(height) {
this.setState({scrollerHeight: height});
},
_onScroll: function() {
this.setState({scrollTop: this.refs.scroller.getScrollTop()});
},
render: function() {
@ -287,12 +307,16 @@ const RoomSubList = React.createClass({
{this._getHeaderJsx(isCollapsed)}
</div>;
} else {
const tiles = this.makeRoomTiles();
tiles.push(...this.props.extraTiles);
const items = this.props.list.concat(this.props.extraTiles);
return <div ref="subList" className={subListClasses}>
{this._getHeaderJsx(isCollapsed)}
<IndicatorScrollbar ref="scroller" className="mx_RoomSubList_scroll">
{ tiles }
<IndicatorScrollbar ref="scroller" className="mx_RoomSubList_scroll" onScroll={ this._onScroll }>
<LazyRenderList
scrollTop={this.state.scrollTop }
height={ this.state.scrollerHeight }
renderItem={ this.makeRoomTile }
itemHeight={34}
items={items} />
</IndicatorScrollbar>
</div>;
}