mirror of
https://github.com/element-hq/element-web.git
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739 lines
31 KiB
TypeScript
739 lines
31 KiB
TypeScript
/*
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Copyright 2015, 2016 OpenMarket Ltd
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Copyright 2017, 2018 Vector Creations Ltd
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import * as React from "react";
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import {createRef} from "react";
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import { Room } from "matrix-js-sdk/src/models/room";
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import classNames from 'classnames';
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import { RovingAccessibleButton, RovingTabIndexWrapper } from "../../../accessibility/RovingTabIndex";
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import { _t } from "../../../languageHandler";
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import AccessibleButton from "../../views/elements/AccessibleButton";
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import RoomTile from "./RoomTile";
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import { ListLayout } from "../../../stores/room-list/ListLayout";
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import {
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ChevronFace,
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ContextMenu,
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ContextMenuTooltipButton,
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StyledMenuItemCheckbox,
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StyledMenuItemRadio,
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} from "../../structures/ContextMenu";
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import RoomListStore from "../../../stores/room-list/RoomListStore";
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import { ListAlgorithm, SortAlgorithm } from "../../../stores/room-list/algorithms/models";
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import { DefaultTagID, TagID } from "../../../stores/room-list/models";
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import dis from "../../../dispatcher/dispatcher";
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import defaultDispatcher from "../../../dispatcher/dispatcher";
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import NotificationBadge from "./NotificationBadge";
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import { ListNotificationState } from "../../../stores/notifications/ListNotificationState";
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import AccessibleTooltipButton from "../elements/AccessibleTooltipButton";
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import { Key } from "../../../Keyboard";
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import { ActionPayload } from "../../../dispatcher/payloads";
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import { Enable, Resizable } from "re-resizable";
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import { Direction } from "re-resizable/lib/resizer";
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import { polyfillTouchEvent } from "../../../@types/polyfill";
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import { RoomNotificationStateStore } from "../../../stores/notifications/RoomNotificationStateStore";
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import RoomListLayoutStore from "../../../stores/room-list/RoomListLayoutStore";
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const SHOW_N_BUTTON_HEIGHT = 28; // As defined by CSS
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const RESIZE_HANDLE_HEIGHT = 4; // As defined by CSS
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export const HEADER_HEIGHT = 32; // As defined by CSS
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const MAX_PADDING_HEIGHT = SHOW_N_BUTTON_HEIGHT + RESIZE_HANDLE_HEIGHT;
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// HACK: We really shouldn't have to do this.
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polyfillTouchEvent();
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interface IProps {
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forRooms: boolean;
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rooms?: Room[];
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startAsHidden: boolean;
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label: string;
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onAddRoom?: () => void;
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addRoomLabel: string;
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isMinimized: boolean;
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tagId: TagID;
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onResize: () => void;
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isFiltered: boolean;
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// TODO: Don't use this. It's for community invites, and community invites shouldn't be here.
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// You should feel bad if you use this.
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extraBadTilesThatShouldntExist?: React.ReactElement[];
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// TODO: Account for https://github.com/vector-im/riot-web/issues/14179
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}
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// TODO: Use re-resizer's NumberSize when it is exposed as the type
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interface ResizeDelta {
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width: number;
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height: number;
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}
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type PartialDOMRect = Pick<DOMRect, "left" | "top" | "height">;
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interface IState {
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notificationState: ListNotificationState;
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contextMenuPosition: PartialDOMRect;
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isResizing: boolean;
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isExpanded: boolean; // used for the for expand of the sublist when the room list is being filtered
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height: number;
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}
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export default class RoomSublist extends React.Component<IProps, IState> {
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private headerButton = createRef<HTMLDivElement>();
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private sublistRef = createRef<HTMLDivElement>();
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private dispatcherRef: string;
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private layout: ListLayout;
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private heightAtStart: number;
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constructor(props: IProps) {
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super(props);
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this.layout = RoomListLayoutStore.instance.getLayoutFor(this.props.tagId);
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this.heightAtStart = 0;
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const height = this.calculateInitialHeight();
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this.state = {
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notificationState: RoomNotificationStateStore.instance.getListState(this.props.tagId),
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contextMenuPosition: null,
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isResizing: false,
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isExpanded: this.props.isFiltered ? this.props.isFiltered : !this.layout.isCollapsed,
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height,
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};
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this.state.notificationState.setRooms(this.props.rooms);
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this.dispatcherRef = defaultDispatcher.register(this.onAction);
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}
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private calculateInitialHeight() {
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const requestedVisibleTiles = Math.max(Math.floor(this.layout.visibleTiles), this.layout.minVisibleTiles);
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const tileCount = Math.min(this.numTiles, requestedVisibleTiles);
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return this.layout.tilesToPixelsWithPadding(tileCount, this.padding);
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}
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private get padding() {
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let padding = RESIZE_HANDLE_HEIGHT;
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// this is used for calculating the max height of the whole container,
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// and takes into account whether there should be room reserved for the show more/less button
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// when fully expanded. We can't rely purely on the layout's defaultVisible tile count
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// because there are conditions in which we need to know that the 'show more' button
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// is present while well under the default tile limit.
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const needsShowMore = this.numTiles > this.numVisibleTiles;
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// ...but also check this or we'll miss if the section is expanded and we need a
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// 'show less'
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const needsShowLess = this.numTiles > this.layout.defaultVisibleTiles;
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if (needsShowMore || needsShowLess) {
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padding += SHOW_N_BUTTON_HEIGHT;
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}
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return padding;
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}
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private get numTiles(): number {
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return RoomSublist.calcNumTiles(this.props);
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}
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private static calcNumTiles(props) {
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return (props.rooms || []).length + (props.extraBadTilesThatShouldntExist || []).length;
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}
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private get numVisibleTiles(): number {
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const nVisible = Math.ceil(this.layout.visibleTiles);
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return Math.min(nVisible, this.numTiles);
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}
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public componentDidUpdate(prevProps: Readonly<IProps>) {
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this.state.notificationState.setRooms(this.props.rooms);
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if (prevProps.isFiltered !== this.props.isFiltered) {
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if (this.props.isFiltered) {
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this.setState({isExpanded: true});
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} else {
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this.setState({isExpanded: !this.layout.isCollapsed});
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}
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}
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// as the rooms can come in one by one we need to reevaluate
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// the amount of available rooms to cap the amount of requested visible rooms by the layout
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if (RoomSublist.calcNumTiles(prevProps) !== this.numTiles) {
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this.setState({height: this.calculateInitialHeight()});
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}
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}
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public componentWillUnmount() {
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this.state.notificationState.destroy();
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defaultDispatcher.unregister(this.dispatcherRef);
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}
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private onAction = (payload: ActionPayload) => {
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if (payload.action === "view_room" && payload.show_room_tile && this.props.rooms) {
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// XXX: we have to do this a tick later because we have incorrect intermediate props during a room change
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// where we lose the room we are changing from temporarily and then it comes back in an update right after.
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setImmediate(() => {
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const roomIndex = this.props.rooms.findIndex((r) => r.roomId === payload.room_id);
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if (!this.state.isExpanded && roomIndex > -1) {
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this.toggleCollapsed();
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}
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// extend the visible section to include the room if it is entirely invisible
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if (roomIndex >= this.numVisibleTiles) {
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this.layout.visibleTiles = this.layout.tilesWithPadding(roomIndex + 1, MAX_PADDING_HEIGHT);
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this.forceUpdate(); // because the layout doesn't trigger a re-render
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}
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});
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}
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};
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private onAddRoom = (e) => {
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e.stopPropagation();
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if (this.props.onAddRoom) this.props.onAddRoom();
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};
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private applyHeightChange(newHeight: number) {
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const heightInTiles = Math.ceil(this.layout.pixelsToTiles(newHeight - this.padding));
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this.layout.visibleTiles = Math.min(this.numTiles, heightInTiles);
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}
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private onResize = (
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e: MouseEvent | TouchEvent,
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travelDirection: Direction,
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refToElement: HTMLDivElement,
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delta: ResizeDelta,
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) => {
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const newHeight = this.heightAtStart + delta.height;
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this.applyHeightChange(newHeight);
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this.setState({height: newHeight});
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};
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private onResizeStart = () => {
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this.heightAtStart = this.state.height;
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this.setState({isResizing: true});
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};
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private onResizeStop = (
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e: MouseEvent | TouchEvent,
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travelDirection: Direction,
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refToElement: HTMLDivElement,
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delta: ResizeDelta,
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) => {
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const newHeight = this.heightAtStart + delta.height;
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this.applyHeightChange(newHeight);
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this.setState({isResizing: false, height: newHeight});
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};
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private onShowAllClick = () => {
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// read number of visible tiles before we mutate it
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const numVisibleTiles = this.numVisibleTiles;
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const newHeight = this.layout.tilesToPixelsWithPadding(this.numTiles, this.padding);
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this.applyHeightChange(newHeight);
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this.setState({height: newHeight}, () => {
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// focus the top-most new room
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this.focusRoomTile(numVisibleTiles);
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});
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};
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private onShowLessClick = () => {
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const newHeight = this.layout.tilesToPixelsWithPadding(this.layout.defaultVisibleTiles, this.padding);
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this.applyHeightChange(newHeight);
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this.setState({height: newHeight});
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};
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private focusRoomTile = (index: number) => {
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if (!this.sublistRef.current) return;
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const elements = this.sublistRef.current.querySelectorAll<HTMLDivElement>(".mx_RoomTile");
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const element = elements && elements[index];
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if (element) {
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element.focus();
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}
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};
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private onOpenMenuClick = (ev: React.MouseEvent) => {
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ev.preventDefault();
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ev.stopPropagation();
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const target = ev.target as HTMLButtonElement;
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this.setState({contextMenuPosition: target.getBoundingClientRect()});
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};
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private onContextMenu = (ev: React.MouseEvent) => {
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ev.preventDefault();
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ev.stopPropagation();
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this.setState({
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contextMenuPosition: {
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left: ev.clientX,
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top: ev.clientY,
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height: 0,
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},
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});
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};
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private onCloseMenu = () => {
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this.setState({contextMenuPosition: null});
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};
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private onUnreadFirstChanged = async () => {
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const isUnreadFirst = RoomListStore.instance.getListOrder(this.props.tagId) === ListAlgorithm.Importance;
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const newAlgorithm = isUnreadFirst ? ListAlgorithm.Natural : ListAlgorithm.Importance;
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await RoomListStore.instance.setListOrder(this.props.tagId, newAlgorithm);
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};
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private onTagSortChanged = async (sort: SortAlgorithm) => {
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await RoomListStore.instance.setTagSorting(this.props.tagId, sort);
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};
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private onMessagePreviewChanged = () => {
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this.layout.showPreviews = !this.layout.showPreviews;
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this.forceUpdate(); // because the layout doesn't trigger a re-render
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};
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private onBadgeClick = (ev: React.MouseEvent) => {
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ev.preventDefault();
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ev.stopPropagation();
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let room;
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if (this.props.tagId === DefaultTagID.Invite) {
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// switch to first room as that'll be the top of the list for the user
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room = this.props.rooms && this.props.rooms[0];
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} else {
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// find the first room with a count of the same colour as the badge count
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room = this.props.rooms.find((r: Room) => {
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const notifState = this.state.notificationState.getForRoom(r);
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return notifState.count > 0 && notifState.color === this.state.notificationState.color;
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});
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}
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if (room) {
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dis.dispatch({
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action: 'view_room',
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room_id: room.roomId,
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show_room_tile: true, // to make sure the room gets scrolled into view
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});
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}
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};
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private onHeaderClick = () => {
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const possibleSticky = this.headerButton.current.parentElement;
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const sublist = possibleSticky.parentElement.parentElement;
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const list = sublist.parentElement.parentElement;
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// the scrollTop is capped at the height of the header in LeftPanel, the top header is always sticky
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const isAtTop = list.scrollTop <= HEADER_HEIGHT;
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const isAtBottom = list.scrollTop >= list.scrollHeight - list.offsetHeight;
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const isStickyTop = possibleSticky.classList.contains('mx_RoomSublist_headerContainer_stickyTop');
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const isStickyBottom = possibleSticky.classList.contains('mx_RoomSublist_headerContainer_stickyBottom');
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if ((isStickyBottom && !isAtBottom) || (isStickyTop && !isAtTop)) {
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// is sticky - jump to list
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sublist.scrollIntoView({behavior: 'smooth'});
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} else {
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// on screen - toggle collapse
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const isExpanded = this.state.isExpanded;
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this.toggleCollapsed();
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// if the bottom list is collapsed then scroll it in so it doesn't expand off screen
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if (!isExpanded && isStickyBottom) {
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setImmediate(() => {
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sublist.scrollIntoView({behavior: 'smooth'});
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});
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}
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}
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};
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private toggleCollapsed = () => {
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this.layout.isCollapsed = this.state.isExpanded;
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this.setState({isExpanded: !this.layout.isCollapsed});
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setImmediate(() => this.props.onResize()); // needs to happen when the DOM is updated
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};
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private onHeaderKeyDown = (ev: React.KeyboardEvent) => {
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switch (ev.key) {
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case Key.ARROW_LEFT:
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ev.stopPropagation();
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if (this.state.isExpanded) {
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// On ARROW_LEFT collapse the room sublist if it isn't already
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this.toggleCollapsed();
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}
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break;
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case Key.ARROW_RIGHT: {
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ev.stopPropagation();
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if (!this.state.isExpanded) {
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// On ARROW_RIGHT expand the room sublist if it isn't already
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this.toggleCollapsed();
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} else if (this.sublistRef.current) {
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// otherwise focus the first room
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const element = this.sublistRef.current.querySelector(".mx_RoomTile") as HTMLDivElement;
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if (element) {
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element.focus();
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}
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}
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break;
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}
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}
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};
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private onKeyDown = (ev: React.KeyboardEvent) => {
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switch (ev.key) {
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// On ARROW_LEFT go to the sublist header
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case Key.ARROW_LEFT:
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ev.stopPropagation();
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this.headerButton.current.focus();
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break;
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// Consume ARROW_RIGHT so it doesn't cause focus to get sent to composer
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case Key.ARROW_RIGHT:
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ev.stopPropagation();
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}
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};
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private renderVisibleTiles(): React.ReactElement[] {
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if (!this.state.isExpanded) {
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// don't waste time on rendering
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return [];
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}
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const tiles: React.ReactElement[] = [];
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if (this.props.rooms) {
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const visibleRooms = this.props.rooms.slice(0, this.numVisibleTiles);
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for (const room of visibleRooms) {
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tiles.push(
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<RoomTile
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room={room}
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key={`room-${room.roomId}`}
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showMessagePreview={this.layout.showPreviews}
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isMinimized={this.props.isMinimized}
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tag={this.props.tagId}
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/>
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);
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}
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}
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if (this.props.extraBadTilesThatShouldntExist) {
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tiles.push(...this.props.extraBadTilesThatShouldntExist);
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}
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// We only have to do this because of the extra tiles. We do it conditionally
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// to avoid spending cycles on slicing. It's generally fine to do this though
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// as users are unlikely to have more than a handful of tiles when the extra
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// tiles are used.
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if (tiles.length > this.numVisibleTiles) {
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return tiles.slice(0, this.numVisibleTiles);
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}
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return tiles;
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}
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private renderMenu(): React.ReactElement {
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let contextMenu = null;
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if (this.state.contextMenuPosition) {
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const isAlphabetical = RoomListStore.instance.getTagSorting(this.props.tagId) === SortAlgorithm.Alphabetic;
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const isUnreadFirst = RoomListStore.instance.getListOrder(this.props.tagId) === ListAlgorithm.Importance;
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// Invites don't get some nonsense options, so only add them if we have to.
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let otherSections = null;
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if (this.props.tagId !== DefaultTagID.Invite) {
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otherSections = (
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<React.Fragment>
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<hr />
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<div>
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<div className='mx_RoomSublist_contextMenu_title'>{_t("Appearance")}</div>
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<StyledMenuItemCheckbox
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onClose={this.onCloseMenu}
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onChange={this.onUnreadFirstChanged}
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checked={isUnreadFirst}
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>
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{_t("Show rooms with unread messages first")}
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</StyledMenuItemCheckbox>
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<StyledMenuItemCheckbox
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onClose={this.onCloseMenu}
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onChange={this.onMessagePreviewChanged}
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checked={this.layout.showPreviews}
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>
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{_t("Show previews of messages")}
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</StyledMenuItemCheckbox>
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</div>
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</React.Fragment>
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);
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}
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contextMenu = (
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<ContextMenu
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chevronFace={ChevronFace.None}
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left={this.state.contextMenuPosition.left}
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top={this.state.contextMenuPosition.top + this.state.contextMenuPosition.height}
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onFinished={this.onCloseMenu}
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>
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<div className="mx_RoomSublist_contextMenu">
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<div>
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<div className='mx_RoomSublist_contextMenu_title'>{_t("Sort by")}</div>
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<StyledMenuItemRadio
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onClose={this.onCloseMenu}
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onChange={() => this.onTagSortChanged(SortAlgorithm.Recent)}
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checked={!isAlphabetical}
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name={`mx_${this.props.tagId}_sortBy`}
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>
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{_t("Activity")}
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</StyledMenuItemRadio>
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<StyledMenuItemRadio
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onClose={this.onCloseMenu}
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onChange={() => this.onTagSortChanged(SortAlgorithm.Alphabetic)}
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checked={isAlphabetical}
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name={`mx_${this.props.tagId}_sortBy`}
|
|
>
|
|
{_t("A-Z")}
|
|
</StyledMenuItemRadio>
|
|
</div>
|
|
{otherSections}
|
|
</div>
|
|
</ContextMenu>
|
|
);
|
|
}
|
|
|
|
return (
|
|
<React.Fragment>
|
|
<ContextMenuTooltipButton
|
|
className="mx_RoomSublist_menuButton"
|
|
onClick={this.onOpenMenuClick}
|
|
title={_t("List options")}
|
|
isExpanded={!!this.state.contextMenuPosition}
|
|
/>
|
|
{contextMenu}
|
|
</React.Fragment>
|
|
);
|
|
}
|
|
|
|
private renderHeader(): React.ReactElement {
|
|
return (
|
|
<RovingTabIndexWrapper inputRef={this.headerButton}>
|
|
{({onFocus, isActive, ref}) => {
|
|
const tabIndex = isActive ? 0 : -1;
|
|
|
|
let ariaLabel = _t("Jump to first unread room.");
|
|
if (this.props.tagId === DefaultTagID.Invite) {
|
|
ariaLabel = _t("Jump to first invite.");
|
|
}
|
|
|
|
const badge = (
|
|
<NotificationBadge
|
|
forceCount={true}
|
|
notification={this.state.notificationState}
|
|
onClick={this.onBadgeClick}
|
|
tabIndex={tabIndex}
|
|
aria-label={ariaLabel}
|
|
/>
|
|
);
|
|
|
|
let addRoomButton = null;
|
|
if (!!this.props.onAddRoom) {
|
|
addRoomButton = (
|
|
<AccessibleTooltipButton
|
|
tabIndex={tabIndex}
|
|
onClick={this.onAddRoom}
|
|
className="mx_RoomSublist_auxButton"
|
|
aria-label={this.props.addRoomLabel || _t("Add room")}
|
|
title={this.props.addRoomLabel}
|
|
tooltipClassName={"mx_RoomSublist_addRoomTooltip"}
|
|
/>
|
|
);
|
|
}
|
|
|
|
const collapseClasses = classNames({
|
|
'mx_RoomSublist_collapseBtn': true,
|
|
'mx_RoomSublist_collapseBtn_collapsed': !this.state.isExpanded,
|
|
});
|
|
|
|
const classes = classNames({
|
|
'mx_RoomSublist_headerContainer': true,
|
|
'mx_RoomSublist_headerContainer_withAux': !!addRoomButton,
|
|
});
|
|
|
|
const badgeContainer = (
|
|
<div className="mx_RoomSublist_badgeContainer">
|
|
{badge}
|
|
</div>
|
|
);
|
|
|
|
let Button: React.ComponentType<React.ComponentProps<typeof AccessibleButton>> = AccessibleButton;
|
|
if (this.props.isMinimized) {
|
|
Button = AccessibleTooltipButton;
|
|
}
|
|
|
|
// Note: the addRoomButton conditionally gets moved around
|
|
// the DOM depending on whether or not the list is minimized.
|
|
// If we're minimized, we want it below the header so it
|
|
// doesn't become sticky.
|
|
// The same applies to the notification badge.
|
|
return (
|
|
<div className={classes} onKeyDown={this.onHeaderKeyDown} onFocus={onFocus} aria-label={this.props.label}>
|
|
<div className="mx_RoomSublist_stickable">
|
|
<Button
|
|
onFocus={onFocus}
|
|
inputRef={ref}
|
|
tabIndex={tabIndex}
|
|
className="mx_RoomSublist_headerText"
|
|
role="treeitem"
|
|
aria-expanded={this.state.isExpanded}
|
|
aria-level={1}
|
|
onClick={this.onHeaderClick}
|
|
onContextMenu={this.onContextMenu}
|
|
title={this.props.isMinimized ? this.props.label : undefined}
|
|
>
|
|
<span className={collapseClasses} />
|
|
<span>{this.props.label}</span>
|
|
</Button>
|
|
{this.renderMenu()}
|
|
{this.props.isMinimized ? null : badgeContainer}
|
|
{this.props.isMinimized ? null : addRoomButton}
|
|
</div>
|
|
{this.props.isMinimized ? badgeContainer : null}
|
|
{this.props.isMinimized ? addRoomButton : null}
|
|
</div>
|
|
);
|
|
}}
|
|
</RovingTabIndexWrapper>
|
|
);
|
|
}
|
|
|
|
private onScrollPrevent(e: React.UIEvent<HTMLDivElement>) {
|
|
// the RoomTile calls scrollIntoView and the browser may scroll a div we do not wish to be scrollable
|
|
// this fixes https://github.com/vector-im/riot-web/issues/14413
|
|
(e.target as HTMLDivElement).scrollTop = 0;
|
|
}
|
|
|
|
public render(): React.ReactElement {
|
|
const visibleTiles = this.renderVisibleTiles();
|
|
const classes = classNames({
|
|
'mx_RoomSublist': true,
|
|
'mx_RoomSublist_hasMenuOpen': !!this.state.contextMenuPosition,
|
|
'mx_RoomSublist_minimized': this.props.isMinimized,
|
|
});
|
|
|
|
let content = null;
|
|
if (visibleTiles.length > 0) {
|
|
const layout = this.layout; // to shorten calls
|
|
|
|
const minTiles = Math.min(layout.minVisibleTiles, this.numTiles);
|
|
const showMoreAtMinHeight = minTiles < this.numTiles;
|
|
const minHeightPadding = RESIZE_HANDLE_HEIGHT + (showMoreAtMinHeight ? SHOW_N_BUTTON_HEIGHT : 0);
|
|
const minTilesPx = layout.tilesToPixelsWithPadding(minTiles, minHeightPadding);
|
|
let maxTilesPx = layout.tilesToPixelsWithPadding(this.numTiles, this.padding);
|
|
const showMoreBtnClasses = classNames({
|
|
'mx_RoomSublist_showNButton': true,
|
|
});
|
|
|
|
// If we're hiding rooms, show a 'show more' button to the user. This button
|
|
// floats above the resize handle, if we have one present. If the user has all
|
|
// tiles visible, it becomes 'show less'.
|
|
let showNButton = null;
|
|
|
|
if (maxTilesPx > this.state.height) {
|
|
// the height of all the tiles is greater than the section height: we need a 'show more' button
|
|
const nonPaddedHeight = this.state.height - RESIZE_HANDLE_HEIGHT - SHOW_N_BUTTON_HEIGHT;
|
|
const amountFullyShown = Math.floor(nonPaddedHeight / this.layout.tileHeight);
|
|
const numMissing = this.numTiles - amountFullyShown;
|
|
let showMoreText = (
|
|
<span className='mx_RoomSublist_showNButtonText'>
|
|
{_t("Show %(count)s more", {count: numMissing})}
|
|
</span>
|
|
);
|
|
if (this.props.isMinimized) showMoreText = null;
|
|
showNButton = (
|
|
<RovingAccessibleButton onClick={this.onShowAllClick} className={showMoreBtnClasses}>
|
|
<span className='mx_RoomSublist_showMoreButtonChevron mx_RoomSublist_showNButtonChevron'>
|
|
{/* set by CSS masking */}
|
|
</span>
|
|
{showMoreText}
|
|
</RovingAccessibleButton>
|
|
);
|
|
} else if (this.numTiles > this.layout.defaultVisibleTiles) {
|
|
// we have all tiles visible - add a button to show less
|
|
let showLessText = (
|
|
<span className='mx_RoomSublist_showNButtonText'>
|
|
{_t("Show less")}
|
|
</span>
|
|
);
|
|
if (this.props.isMinimized) showLessText = null;
|
|
showNButton = (
|
|
<RovingAccessibleButton onClick={this.onShowLessClick} className={showMoreBtnClasses}>
|
|
<span className='mx_RoomSublist_showLessButtonChevron mx_RoomSublist_showNButtonChevron'>
|
|
{/* set by CSS masking */}
|
|
</span>
|
|
{showLessText}
|
|
</RovingAccessibleButton>
|
|
);
|
|
}
|
|
|
|
// Figure out if we need a handle
|
|
const handles: Enable = {
|
|
bottom: true, // the only one we need, but the others must be explicitly false
|
|
bottomLeft: false,
|
|
bottomRight: false,
|
|
left: false,
|
|
right: false,
|
|
top: false,
|
|
topLeft: false,
|
|
topRight: false,
|
|
};
|
|
if (layout.visibleTiles >= this.numTiles && this.numTiles <= layout.minVisibleTiles) {
|
|
// we're at a minimum, don't have a bottom handle
|
|
handles.bottom = false;
|
|
}
|
|
|
|
// We have to account for padding so we can accommodate a 'show more' button and
|
|
// the resize handle, which are pinned to the bottom of the container. This is the
|
|
// easiest way to have a resize handle below the button as otherwise we're writing
|
|
// our own resize handling and that doesn't sound fun.
|
|
//
|
|
// The layout class has some helpers for dealing with padding, as we don't want to
|
|
// apply it in all cases. If we apply it in all cases, the resizing feels like it
|
|
// goes backwards and can become wildly incorrect (visibleTiles says 18 when there's
|
|
// only mathematically 7 possible).
|
|
|
|
const handleWrapperClasses = classNames({
|
|
'mx_RoomSublist_resizerHandles': true,
|
|
'mx_RoomSublist_resizerHandles_showNButton': !!showNButton,
|
|
});
|
|
|
|
content = (
|
|
<React.Fragment>
|
|
<Resizable
|
|
size={{height: this.state.height} as any}
|
|
minHeight={minTilesPx}
|
|
maxHeight={maxTilesPx}
|
|
onResizeStart={this.onResizeStart}
|
|
onResizeStop={this.onResizeStop}
|
|
onResize={this.onResize}
|
|
handleWrapperClass={handleWrapperClasses}
|
|
handleClasses={{bottom: "mx_RoomSublist_resizerHandle"}}
|
|
className="mx_RoomSublist_resizeBox"
|
|
enable={handles}
|
|
>
|
|
<div className="mx_RoomSublist_tiles" onScroll={this.onScrollPrevent}>
|
|
{visibleTiles}
|
|
</div>
|
|
{showNButton}
|
|
</Resizable>
|
|
</React.Fragment>
|
|
);
|
|
}
|
|
|
|
return (
|
|
<div
|
|
ref={this.sublistRef}
|
|
className={classes}
|
|
role="group"
|
|
aria-label={this.props.label}
|
|
onKeyDown={this.onKeyDown}
|
|
>
|
|
{this.renderHeader()}
|
|
{content}
|
|
</div>
|
|
);
|
|
}
|
|
}
|