element-web/src/components/views/rooms/RoomSublist2.tsx
Travis Ralston 7674030c6e Show 'show more' when there are less tiles than the default
For example, if you only have 3/10 rooms required for the default then resize smaller, we should have a 'show more' button.

This works by changing the rendering to be slightly more efficient and only looping over what is seen (renderVisibleTiles(), using this.numTiles in place of tiles.length) and using a new setVisibleTilesWithin() function on the layout. Previously resizing the 3/10 case would be setting visibleTiles to ~8 instead of ~1 like it should (because the getter returns a default).
2020-06-30 19:14:36 -06:00

466 lines
20 KiB
TypeScript

/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017, 2018 Vector Creations 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 * as React from "react";
import { createRef } from "react";
import { Room } from "matrix-js-sdk/src/models/room";
import classNames from 'classnames';
import { RovingTabIndexWrapper } from "../../../accessibility/RovingTabIndex";
import { _t } from "../../../languageHandler";
import AccessibleButton from "../../views/elements/AccessibleButton";
import RoomTile2 from "./RoomTile2";
import { ResizableBox, ResizeCallbackData } from "react-resizable";
import { ListLayout } from "../../../stores/room-list/ListLayout";
import NotificationBadge, { ListNotificationState } from "./NotificationBadge";
import { ContextMenu, ContextMenuButton } from "../../structures/ContextMenu";
import StyledCheckbox from "../elements/StyledCheckbox";
import StyledRadioButton from "../elements/StyledRadioButton";
import RoomListStore from "../../../stores/room-list/RoomListStore2";
import { ListAlgorithm, SortAlgorithm } from "../../../stores/room-list/algorithms/models";
import { TagID } from "../../../stores/room-list/models";
// TODO: Remove banner on launch: https://github.com/vector-im/riot-web/issues/14231
// TODO: Rename on launch: https://github.com/vector-im/riot-web/issues/14231
/*******************************************************************
* CAUTION *
*******************************************************************
* This is a work in progress implementation and isn't complete or *
* even useful as a component. Please avoid using it until this *
* warning disappears. *
*******************************************************************/
const SHOW_N_BUTTON_HEIGHT = 32; // As defined by CSS
const RESIZE_HANDLE_HEIGHT = 4; // As defined by CSS
const MAX_PADDING_HEIGHT = SHOW_N_BUTTON_HEIGHT + RESIZE_HANDLE_HEIGHT;
interface IProps {
forRooms: boolean;
rooms?: Room[];
startAsHidden: boolean;
label: string;
onAddRoom?: () => void;
addRoomLabel: string;
isInvite: boolean;
layout: ListLayout;
isMinimized: boolean;
tagId: TagID;
// TODO: Account for https://github.com/vector-im/riot-web/issues/14179
}
interface IState {
notificationState: ListNotificationState;
menuDisplayed: boolean;
isResizing: boolean;
}
export default class RoomSublist2 extends React.Component<IProps, IState> {
private headerButton = createRef();
private menuButtonRef: React.RefObject<HTMLButtonElement> = createRef();
constructor(props: IProps) {
super(props);
this.state = {
notificationState: new ListNotificationState(this.props.isInvite, this.props.tagId),
menuDisplayed: false,
isResizing: false,
};
this.state.notificationState.setRooms(this.props.rooms);
}
private get numTiles(): number {
// TODO: Account for group invites: https://github.com/vector-im/riot-web/issues/14179
return (this.props.rooms || []).length;
}
private get numVisibleTiles(): number {
if (!this.props.layout) return 0;
const nVisible = Math.floor(this.props.layout.visibleTiles);
return Math.min(nVisible, this.numTiles);
}
public componentDidUpdate() {
this.state.notificationState.setRooms(this.props.rooms);
}
public componentWillUnmount() {
this.state.notificationState.destroy();
}
private onAddRoom = (e) => {
e.stopPropagation();
if (this.props.onAddRoom) this.props.onAddRoom();
};
private onResize = (e: React.MouseEvent, data: ResizeCallbackData) => {
const direction = e.movementY < 0 ? -1 : +1;
const tileDiff = this.props.layout.pixelsToTiles(Math.abs(e.movementY)) * direction;
this.props.layout.setVisibleTilesWithin(tileDiff, this.numTiles);
this.forceUpdate(); // because the layout doesn't trigger a re-render
};
private onResizeStart = () => {
this.setState({isResizing: true});
};
private onResizeStop = () => {
this.setState({isResizing: false});
};
private onShowAllClick = () => {
this.props.layout.visibleTiles = this.props.layout.tilesWithPadding(this.numTiles, MAX_PADDING_HEIGHT);
this.forceUpdate(); // because the layout doesn't trigger a re-render
};
private onShowLessClick = () => {
this.props.layout.visibleTiles = this.props.layout.defaultVisibleTiles;
this.forceUpdate(); // because the layout doesn't trigger a re-render
};
private onOpenMenuClick = (ev: InputEvent) => {
ev.preventDefault();
ev.stopPropagation();
this.setState({menuDisplayed: true});
};
private onCloseMenu = () => {
this.setState({menuDisplayed: false});
};
private onUnreadFirstChanged = async () => {
const isUnreadFirst = RoomListStore.instance.getListOrder(this.props.tagId) === ListAlgorithm.Importance;
const newAlgorithm = isUnreadFirst ? ListAlgorithm.Natural : ListAlgorithm.Importance;
await RoomListStore.instance.setListOrder(this.props.tagId, newAlgorithm);
};
private onTagSortChanged = async (sort: SortAlgorithm) => {
await RoomListStore.instance.setTagSorting(this.props.tagId, sort);
};
private onMessagePreviewChanged = () => {
this.props.layout.showPreviews = !this.props.layout.showPreviews;
this.forceUpdate(); // because the layout doesn't trigger a re-render
};
private onHeaderClick = (ev: React.MouseEvent<HTMLDivElement>) => {
let target = ev.target as HTMLDivElement;
if (!target.classList.contains('mx_RoomSublist2_headerText')) {
// If we don't have the headerText class, the user clicked the span in the headerText.
target = target.parentElement as HTMLDivElement;
}
const possibleSticky = target.parentElement;
const sublist = possibleSticky.parentElement.parentElement;
if (possibleSticky.classList.contains('mx_RoomSublist2_headerContainer_sticky')) {
// is sticky - jump to list
sublist.scrollIntoView({behavior: 'smooth'});
} else {
// on screen - toggle collapse
this.props.layout.isCollapsed = !this.props.layout.isCollapsed;
this.forceUpdate(); // because the layout doesn't trigger an update
}
};
private renderVisibleTiles(): React.ReactElement[] {
if (this.props.layout && this.props.layout.isCollapsed) {
// don't waste time on rendering
return [];
}
const tiles: React.ReactElement[] = [];
if (this.props.rooms) {
const visibleRooms = this.props.rooms.slice(0, this.numVisibleTiles);
for (const room of visibleRooms) {
tiles.push(
<RoomTile2
room={room}
key={`room-${room.roomId}`}
showMessagePreview={this.props.layout.showPreviews}
isMinimized={this.props.isMinimized}
tag={this.props.tagId}
/>
);
}
}
return tiles;
}
private renderMenu(): React.ReactElement {
let contextMenu = null;
if (this.state.menuDisplayed) {
const elementRect = this.menuButtonRef.current.getBoundingClientRect();
const isAlphabetical = RoomListStore.instance.getTagSorting(this.props.tagId) === SortAlgorithm.Alphabetic;
const isUnreadFirst = RoomListStore.instance.getListOrder(this.props.tagId) === ListAlgorithm.Importance;
contextMenu = (
<ContextMenu
chevronFace="none"
left={elementRect.left}
top={elementRect.top + elementRect.height}
onFinished={this.onCloseMenu}
>
<div className="mx_RoomSublist2_contextMenu">
<div>
<div className='mx_RoomSublist2_contextMenu_title'>{_t("Sort by")}</div>
<StyledRadioButton
onChange={() => this.onTagSortChanged(SortAlgorithm.Recent)}
checked={!isAlphabetical}
name={`mx_${this.props.tagId}_sortBy`}
>
{_t("Activity")}
</StyledRadioButton>
<StyledRadioButton
onChange={() => this.onTagSortChanged(SortAlgorithm.Alphabetic)}
checked={isAlphabetical}
name={`mx_${this.props.tagId}_sortBy`}
>
{_t("A-Z")}
</StyledRadioButton>
</div>
<hr />
<div>
<div className='mx_RoomSublist2_contextMenu_title'>{_t("Unread rooms")}</div>
<StyledCheckbox
onChange={this.onUnreadFirstChanged}
checked={isUnreadFirst}
>
{_t("Always show first")}
</StyledCheckbox>
</div>
<hr />
<div>
<div className='mx_RoomSublist2_contextMenu_title'>{_t("Show")}</div>
<StyledCheckbox
onChange={this.onMessagePreviewChanged}
checked={this.props.layout.showPreviews}
>
{_t("Message preview")}
</StyledCheckbox>
</div>
</div>
</ContextMenu>
);
}
return (
<React.Fragment>
<ContextMenuButton
className="mx_RoomSublist2_menuButton"
onClick={this.onOpenMenuClick}
inputRef={this.menuButtonRef}
label={_t("List options")}
isExpanded={this.state.menuDisplayed}
/>
{contextMenu}
</React.Fragment>
);
}
private renderHeader(): React.ReactElement {
return (
<RovingTabIndexWrapper inputRef={this.headerButton}>
{({onFocus, isActive, ref}) => {
// TODO: Use onFocus: https://github.com/vector-im/riot-web/issues/14180
const tabIndex = isActive ? 0 : -1;
const badge = <NotificationBadge forceCount={true} notification={this.state.notificationState}/>;
let addRoomButton = null;
if (!!this.props.onAddRoom) {
addRoomButton = (
<AccessibleButton
tabIndex={tabIndex}
onClick={this.onAddRoom}
className="mx_RoomSublist2_auxButton"
aria-label={this.props.addRoomLabel || _t("Add room")}
/>
);
}
const collapseClasses = classNames({
'mx_RoomSublist2_collapseBtn': true,
'mx_RoomSublist2_collapseBtn_collapsed': this.props.layout && this.props.layout.isCollapsed,
});
const classes = classNames({
'mx_RoomSublist2_headerContainer': true,
'mx_RoomSublist2_headerContainer_withAux': !!addRoomButton,
});
const badgeContainer = (
<div className="mx_RoomSublist2_badgeContainer">
{badge}
</div>
);
// TODO: a11y (see old component): https://github.com/vector-im/riot-web/issues/14180
// 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}>
<div className='mx_RoomSublist2_stickable'>
<AccessibleButton
inputRef={ref}
tabIndex={tabIndex}
className={"mx_RoomSublist2_headerText"}
role="treeitem"
aria-level={1}
onClick={this.onHeaderClick}
>
<span className={collapseClasses} />
<span>{this.props.label}</span>
</AccessibleButton>
{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>
);
}
public render(): React.ReactElement {
// TODO: Error boundary: https://github.com/vector-im/riot-web/issues/14185
const visibleTiles = this.renderVisibleTiles();
const classes = classNames({
'mx_RoomSublist2': true,
'mx_RoomSublist2_hasMenuOpen': this.state.menuDisplayed,
'mx_RoomSublist2_minimized': this.props.isMinimized,
});
let content = null;
if (visibleTiles.length > 0) {
const layout = this.props.layout; // to shorten calls
const maxTilesFactored = layout.tilesWithResizerBoxFactor(this.numTiles);
const showMoreBtnClasses = classNames({
'mx_RoomSublist2_showNButton': true,
'mx_RoomSublist2_isCutting': this.state.isResizing && layout.visibleTiles < maxTilesFactored,
});
// 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 (this.numTiles > this.numVisibleTiles) {
// we have a cutoff condition - add the button to show all
const numMissing = this.numTiles - visibleTiles.length;
let showMoreText = (
<span className='mx_RoomSublist2_showNButtonText'>
{_t("Show %(count)s more", {count: numMissing})}
</span>
);
if (this.props.isMinimized) showMoreText = null;
showNButton = (
<div onClick={this.onShowAllClick} className={showMoreBtnClasses}>
<span className='mx_RoomSublist2_showMoreButtonChevron mx_RoomSublist2_showNButtonChevron'>
{/* set by CSS masking */}
</span>
{showMoreText}
</div>
);
} else if (this.numTiles <= this.numVisibleTiles && this.numTiles > this.props.layout.defaultVisibleTiles) {
// we have all tiles visible - add a button to show less
let showLessText = (
<span className='mx_RoomSublist2_showNButtonText'>
{_t("Show less")}
</span>
);
if (this.props.isMinimized) showLessText = null;
showNButton = (
<div onClick={this.onShowLessClick} className={showMoreBtnClasses}>
<span className='mx_RoomSublist2_showLessButtonChevron mx_RoomSublist2_showNButtonChevron'>
{/* set by CSS masking */}
</span>
{showLessText}
</div>
);
}
// Figure out if we need a handle
let handles = ['s'];
if (layout.visibleTiles >= this.numTiles && this.numTiles <= layout.minVisibleTiles) {
handles = []; // no handles, we're at a minimum
}
// 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).
// The padding is variable though, so figure out what we need padding for.
let padding = 0;
if (showNButton) padding += SHOW_N_BUTTON_HEIGHT;
padding += RESIZE_HANDLE_HEIGHT; // always append the handle height
const relativeTiles = layout.tilesWithPadding(this.numTiles, padding);
const minTilesPx = layout.calculateTilesToPixelsMin(relativeTiles, layout.minVisibleTiles, padding);
const maxTilesPx = layout.tilesToPixelsWithPadding(this.numTiles, padding);
const tilesWithoutPadding = Math.min(relativeTiles, layout.visibleTiles);
const tilesPx = layout.calculateTilesToPixelsMin(relativeTiles, tilesWithoutPadding, padding);
content = (
<ResizableBox
width={-1}
height={tilesPx}
axis="y"
minConstraints={[-1, minTilesPx]}
maxConstraints={[-1, maxTilesPx]}
resizeHandles={handles}
onResize={this.onResize}
className="mx_RoomSublist2_resizeBox"
onResizeStart={this.onResizeStart}
onResizeStop={this.onResizeStop}
>
{visibleTiles}
{showNButton}
</ResizableBox>
);
}
// TODO: onKeyDown support: https://github.com/vector-im/riot-web/issues/14180
return (
<div
className={classes}
role="group"
aria-label={this.props.label}
>
{this.renderHeader()}
{content}
</div>
);
}
}