[RN] Implement tile view

* feat(tile-view): initial implementation for mobile

- Create a tile view component for displaying thumbnails in a
  two-dimensional grid.
- Update the existing TileViewButton so it shows a label in the
  overflow menu.
- Modify conference so it can display TileView while hiding
  Filmstrip.
- Modify Thumbnail so its width/height can be set and to prevent
  pinning while in tile view mode.

* use style array for thumbnail styles

* change ternary to math.min for expressiveness

* use dimensiondetector

* pass explicit disableTint prop

* use makeAspectRatioAware instead of aspectRatio prop

* update docs

* fix docs again (fix laziest copy/paste job I've ever done)

* large-video: rename onPress prop to onClick

* change forEach to for...of

* use truthy check fallthrough logic instead of explicit if

* put tile view button second to last in menu

* move spacer to a constant

* the magical incantation to make flow shut up

react/features/base/react/components/AbstractContainer.js

@@ -1,54 +1,71 @@
 /* @flow */
 
-import PropTypes from 'prop-types';
 import React, { Component } from 'react';
 
+/**
+ * {@code AbstractContainer} component's property types.
+ */
+export type Props = {
+
+    /**
+     * An optional accessibility label to apply to the container root.
+     */
+    accessibilityLabel?: string,
+
+    /**
+     * Whether or not this element is an accessibility element.
+     */
+    accessible?: boolean,
+
+    /**
+     * React Elements to display within the component.
+     */
+    children: React$Node | Object,
+
+    /**
+     * The event handler/listener to be invoked when this
+     * {@code AbstractContainer} is clicked on Web or pressed on React
+     * Native. If {@code onClick} is defined and {@link touchFeedback} is
+     * undefined, {@code touchFeedback} is considered defined as
+     * {@code true}.
+     */
+    onClick?: ?Function,
+
+    /**
+     * The style (as in stylesheet) to be applied to this
+     * {@code AbstractContainer}.
+     */
+    style?: Array<?string> | Object,
+
+    /**
+     * If this instance is to provide visual feedback when touched, then
+     * {@code true}; otherwise, {@code false}. If {@code touchFeedback} is
+     * undefined and {@link onClick} is defined, {@code touchFeedback} is
+     * considered defined as {@code true}.
+     */
+    touchFeedback?: ?Function,
+
+    /**
+     * Color to display when clicked.
+     */
+    underlayColor?: string,
+
+    /**
+     * If this {@code AbstractContainer} is to be visible, then {@code true}
+     * or {@code false} if this instance is to be hidden or not rendered at
+     * all.
+     */
+    visible?: ?boolean
+};
+
+
 /**
  * Abstract (base) class for container of React {@link Component} children with
  * a style.
  *
  * @extends Component
  */
-export default class AbstractContainer extends Component<*> {
-    /**
-     * {@code AbstractContainer} component's property types.
-     *
-     * @static
-     */
-    static propTypes = {
-        children: PropTypes.node,
-
-        /**
-         * The event handler/listener to be invoked when this
-         * {@code AbstractContainer} is clicked on Web or pressed on React
-         * Native. If {@code onClick} is defined and {@link touchFeedback} is
-         * undefined, {@code touchFeedback} is considered defined as
-         * {@code true}.
-         */
-        onClick: PropTypes.func,
-
-        /**
-         * The style (as in stylesheet) to be applied to this
-         * {@code AbstractContainer}.
-         */
-        style: PropTypes.object,
-
-        /**
-         * If this instance is to provide visual feedback when touched, then
-         * {@code true}; otherwise, {@code false}. If {@code touchFeedback} is
-         * undefined and {@link onClick} is defined, {@code touchFeedback} is
-         * considered defined as {@code true}.
-         */
-        touchFeedback: PropTypes.bool,
-
-        /**
-         * If this {@code AbstractContainer} is to be visible, then {@code true}
-         * or {@code false} if this instance is to be hidden or not rendered at
-         * all.
-         */
-        visible: PropTypes.bool
-    };
-
+export default class AbstractContainer<P: Props> extends Component<P> {
     /**
      * Renders this {@code AbstractContainer} as a React {@code Component} of a
      * specific type.
@@ -61,7 +78,7 @@ export default class AbstractContainer extends Component<*> {
      * @protected
      * @returns {ReactElement}
      */
-    _render(type, props) {
+    _render(type, props?: P) {
         const {
             children,
 

react/features/base/react/components/native/Container.js

@@ -8,20 +8,14 @@ import {
 } from 'react-native';
 
 import AbstractContainer from '../AbstractContainer';
+import type { Props } from '../AbstractContainer';
 
 /**
  * Represents a container of React Native/mobile {@link Component} children.
  *
  * @extends AbstractContainer
  */
-export default class Container extends AbstractContainer {
-    /**
-     * {@code Container} component's property types.
-     *
-     * @static
-     */
-    static propTypes = AbstractContainer.propTypes;
-
+export default class Container<P: Props> extends AbstractContainer<P> {
     /**
      * Implements React's {@link Component#render()}.
      *

react/features/base/react/components/web/Container.js

@@ -1,13 +1,14 @@
 /* @flow */
 
 import AbstractContainer from '../AbstractContainer';
+import type { Props } from '../AbstractContainer';
 
 /**
  * Represents a container of React/Web {@link Component} children with a style.
  *
  * @extends AbstractContainer
  */
-export default class Container extends AbstractContainer {
+export default class Container<P: Props> extends AbstractContainer<P> {
     /**
      * {@code Container} component's property types.
      *

react/features/conference/components/Conference.native.js

@@ -17,12 +17,18 @@ import {
 import { TestConnectionInfo } from '../../base/testing';
 import { createDesiredLocalTracks } from '../../base/tracks';
 import { ConferenceNotification } from '../../calendar-sync';
-import { FILMSTRIP_SIZE, Filmstrip, isFilmstripVisible } from '../../filmstrip';
+import {
+    FILMSTRIP_SIZE,
+    Filmstrip,
+    isFilmstripVisible,
+    TileView
+} from '../../filmstrip';
 import { LargeVideo } from '../../large-video';
 import { CalleeInfoContainer } from '../../invite';
 import { NotificationsContainer } from '../../notifications';
 import { Captions } from '../../subtitles';
 import { setToolboxVisible, Toolbox } from '../../toolbox';
+import { shouldDisplayTileView } from '../../video-layout';
 
 import styles from './styles';
 
@@ -115,6 +121,13 @@ type Props = {
      */
     _setToolboxVisible: Function,
 
+    /**
+     * Whether or not the layout should change to support tile view mode.
+     *
+     * @private
+     */
+    _shouldDisplayTileView: boolean,
+
     /**
      * The indicator which determines whether the Toolbox is visible.
      *
@@ -252,6 +265,12 @@ class Conference extends Component<Props> {
      * @returns {ReactElement}
      */
     render() {
+        const {
+            _connecting,
+            _reducedUI,
+            _shouldDisplayTileView
+        } = this.props;
+
         return (
             <Container style = { styles.conference }>
                 <StatusBar
@@ -261,20 +280,23 @@ class Conference extends Component<Props> {
 
                 {/*
                   * The LargeVideo is the lowermost stacking layer.
-                  */}
-                <LargeVideo onPress = { this._onClick } />
+                  */
+                    _shouldDisplayTileView
+                        ? <TileView onClick = { this._onClick } />
+                        : <LargeVideo onClick = { this._onClick } />
+                }
 
                 {/*
                   * If there is a ringing call, show the callee's info.
                   */
-                    this.props._reducedUI || <CalleeInfoContainer />
+                    _reducedUI || <CalleeInfoContainer />
                 }
 
                 {/*
                   * The activity/loading indicator goes above everything, except
                   * the toolbox/toolbars and the dialogs.
                   */
-                    this.props._connecting
+                    _connecting
                         && <TintedView>
                             <LoadingIndicator />
                         </TintedView>
@@ -304,8 +326,9 @@ class Conference extends Component<Props> {
                       * name and grouping stem from the fact that these two
                       * React Components depict the videos of the conference's
                       * participants.
-                      */}
-                    <Filmstrip />
+                      */
+                        _shouldDisplayTileView ? undefined : <Filmstrip />
+                    }
                 </View>
 
                 <TestConnectionInfo />
@@ -548,6 +571,14 @@ function _mapStateToProps(state) {
          */
         _room: room,
 
+        /**
+         * Whether or not the layout should change to support tile view mode.
+         *
+         * @private
+         * @type {boolean}
+         */
+        _shouldDisplayTileView: shouldDisplayTileView(state),
+
         /**
          * The indicator which determines whether the Toolbox is visible.
          *

react/features/filmstrip/components/native/Thumbnail.js

@@ -1,4 +1,5 @@
-import PropTypes from 'prop-types';
+// @flow
+
 import React, { Component } from 'react';
 import { connect } from 'react-redux';
 
@@ -19,30 +20,66 @@ import styles from './styles';
 import VideoMutedIndicator from './VideoMutedIndicator';
 
 /**
- * React component for video thumbnail.
- *
- * @extends Component
+ * Thumbnail component's property types.
  */
-class Thumbnail extends Component {
+type Props = {
+
     /**
-     * Thumbnail component's property types.
-     *
-     * @static
+     * The Redux representation of the participant's audio track.
      */
-    static propTypes = {
-        _audioTrack: PropTypes.object,
-        _largeVideo: PropTypes.object,
-        _videoTrack: PropTypes.object,
-        dispatch: PropTypes.func,
-        participant: PropTypes.object
-    };
+    _audioTrack: Object,
+
+    /**
+     * The Redux representation of the state "features/large-video".
+     */
+    _largeVideo: Object,
+
+    /**
+     * The Redux representation of the participant's video track.
+     */
+    _videoTrack: Object,
+
+    /**
+     * If true, tapping on the thumbnail will not pin the participant to large
+     * video. By default tapping does pin the participant.
+     */
+    disablePin?: boolean,
+
+    /**
+     * If true, there will be no color overlay (tint) on the thumbnail
+     * indicating the participant associated with the thumbnail is displayed on
+     * large video. By default there will be a tint.
+     */
+    disableTint?: boolean,
+
+    /**
+     * Invoked to trigger state changes in Redux.
+     */
+    dispatch: Dispatch<*>,
+
+    /**
+     * The Redux representation of the participant to display.
+     */
+    participant: Object,
+
+    /**
+     * Optional styling to add or override on the Thumbnail component root.
+     */
+    styleOverrides?: Object
+};
 
+/**
+ * React component for video thumbnail.
+ *
+ * @extends Component
+ */
+class Thumbnail extends Component<Props> {
     /**
      * Initializes new Video Thumbnail component.
      *
      * @param {Object} props - Component props.
      */
-    constructor(props) {
+    constructor(props: Props) {
         super(props);
 
         // Bind event handlers so they are only bound once for every instance.
@@ -56,19 +93,14 @@ class Thumbnail extends Component {
      * @returns {ReactElement}
      */
     render() {
-        const audioTrack = this.props._audioTrack;
-        const largeVideo = this.props._largeVideo;
-        const participant = this.props.participant;
-        const videoTrack = this.props._videoTrack;
-
-        let style = styles.thumbnail;
-
-        if (participant.pinned) {
-            style = {
-                ...style,
-                ...styles.thumbnailPinned
-            };
-        }
+        const {
+            _audioTrack: audioTrack,
+            _largeVideo: largeVideo,
+            _videoTrack: videoTrack,
+            disablePin,
+            disableTint,
+            participant
+        } = this.props;
 
         // We don't render audio in any of the following:
         // 1. The audio (source) is muted. There's no practical reason (that we
@@ -85,8 +117,13 @@ class Thumbnail extends Component {
 
         return (
             <Container
-                onClick = { this._onClick }
-                style = { style }>
+                onClick = { disablePin ? undefined : this._onClick }
+                style = { [
+                    styles.thumbnail,
+                    participant.pinned && !disablePin
+                        ? styles.thumbnailPinned : null,
+                    this.props.styleOverrides || null
+                ] }>
 
                 { renderAudio
                     && <Audio
@@ -96,7 +133,7 @@ class Thumbnail extends Component {
                 <ParticipantView
                     avatarSize = { AVATAR_SIZE }
                     participantId = { participantId }
-                    tintEnabled = { participantInLargeVideo }
+                    tintEnabled = { participantInLargeVideo && !disableTint }
                     zOrder = { 1 } />
 
                 { participant.role === PARTICIPANT_ROLE.MODERATOR
@@ -117,6 +154,8 @@ class Thumbnail extends Component {
         );
     }
 
+    _onClick: () => void;
+
     /**
      * Handles click/tap event on the thumbnail.
      *

react/features/filmstrip/components/native/TileView.js

@@ -0,0 +1,337 @@
+// @flow
+
+import React, { Component } from 'react';
+import {
+    ScrollView,
+    TouchableWithoutFeedback,
+    View
+} from 'react-native';
+import { connect } from 'react-redux';
+
+import {
+    getNearestReceiverVideoQualityLevel,
+    setMaxReceiverVideoQuality
+} from '../../../base/conference';
+import {
+    DimensionsDetector,
+    isNarrowAspectRatio,
+    makeAspectRatioAware
+} from '../../../base/responsive-ui';
+
+import Thumbnail from './Thumbnail';
+import styles from './styles';
+
+/**
+ * The type of the React {@link Component} props of {@link TileView}.
+ */
+type Props = {
+
+    /**
+     * The participants in the conference.
+     */
+    _participants: Array<Object>,
+
+    /**
+     * Invoked to update the receiver video quality.
+     */
+    dispatch: Dispatch<*>,
+
+    /**
+     * Callback to invoke when tile view is tapped.
+     */
+    onClick: Function
+};
+
+/**
+ * The type of the React {@link Component} state of {@link TileView}.
+ */
+type State = {
+
+    /**
+     * The available width for {@link TileView} to occupy.
+     */
+    height: number,
+
+    /**
+     * The available height for {@link TileView} to occupy.
+     */
+    width: number
+};
+
+/**
+ * The margin for each side of the tile view. Taken away from the available
+ * height and width for the tile container to display in.
+ *
+ * @private
+ * @type {number}
+ */
+const MARGIN = 10;
+
+/**
+ * The aspect ratio the tiles should display in.
+ *
+ * @private
+ * @type {number}
+ */
+const TILE_ASPECT_RATIO = 1;
+
+/**
+ * Implements a React {@link Component} which displays thumbnails in a two
+ * dimensional grid.
+ *
+ * @extends Component
+ */
+class TileView extends Component<Props, State> {
+    state = {
+        height: 0,
+        width: 0
+    };
+
+    /**
+     * Initializes a new {@code TileView} instance.
+     *
+     * @param {Object} props - The read-only properties with which the new
+     * instance is to be initialized.
+     */
+    constructor(props: Props) {
+        super(props);
+
+        // Bind event handler so it is only bound once per instance.
+        this._onDimensionsChanged = this._onDimensionsChanged.bind(this);
+    }
+
+    /**
+     * Implements React's {@link Component#componentDidMount}.
+     *
+     * @inheritdoc
+     */
+    componentDidMount() {
+        this._updateReceiverQuality();
+    }
+
+    /**
+     * Implements React's {@link Component#componentDidUpdate}.
+     *
+     * @inheritdoc
+     */
+    componentDidUpdate() {
+        this._updateReceiverQuality();
+    }
+
+    /**
+     * Implements React's {@link Component#render()}.
+     *
+     * @inheritdoc
+     * @returns {ReactElement}
+     */
+    render() {
+        const { onClick } = this.props;
+        const { height, width } = this.state;
+        const rowElements = this._groupIntoRows(
+            this._renderThumbnails(), this._getColumnCount());
+
+        return (
+            <DimensionsDetector
+                onDimensionsChanged = { this._onDimensionsChanged }>
+                <ScrollView
+                    style = {{
+                        ...styles.tileView,
+                        height,
+                        width
+                    }}>
+                    <TouchableWithoutFeedback onPress = { onClick }>
+                        <View
+                            style = {{
+                                ...styles.tileViewRows,
+                                minHeight: height,
+                                minWidth: width
+                            }}>
+                            { rowElements }
+                        </View>
+                    </TouchableWithoutFeedback>
+                </ScrollView>
+            </DimensionsDetector>
+        );
+    }
+
+    /**
+     * Returns how many columns should be displayed for tile view.
+     *
+     * @returns {number}
+     * @private
+     */
+    _getColumnCount() {
+        const participantCount = this.props._participants.length;
+
+        // For narrow view, tiles should stack on top of each other for a lonely
+        // call and a 1:1 call. Otherwise tiles should be grouped into rows of
+        // two.
+        if (isNarrowAspectRatio(this)) {
+            return participantCount >= 3 ? 2 : 1;
+        }
+
+        if (participantCount === 4) {
+            // In wide view, a four person call should display as a 2x2 grid.
+            return 2;
+        }
+
+        return Math.min(3, participantCount);
+    }
+
+    /**
+     * Returns all participants with the local participant at the end.
+     *
+     * @private
+     * @returns {Participant[]}
+     */
+    _getSortedParticipants() {
+        const participants = [];
+        let localParticipant;
+
+        for (const participant of this.props._participants) {
+            if (participant.local) {
+                localParticipant = participant;
+            } else {
+                participants.push(participant);
+            }
+        }
+
+        localParticipant && participants.push(localParticipant);
+
+        return participants;
+    }
+
+    /**
+     * Calculate the height and width for the tiles.
+     *
+     * @private
+     * @returns {Object}
+     */
+    _getTileDimensions() {
+        const { _participants } = this.props;
+        const { height, width } = this.state;
+        const columns = this._getColumnCount();
+        const participantCount = _participants.length;
+        const heightToUse = height - (MARGIN * 2);
+        const widthToUse = width - (MARGIN * 2);
+        let tileWidth;
+
+        // If there is going to be at least two rows, ensure that at least two
+        // rows display fully on screen.
+        if (participantCount / columns > 1) {
+            tileWidth
+                = Math.min(widthToUse / columns, heightToUse / 2);
+        } else {
+            tileWidth = Math.min(widthToUse / columns, heightToUse);
+        }
+
+        return {
+            height: tileWidth / TILE_ASPECT_RATIO,
+            width: tileWidth
+        };
+    }
+
+    /**
+     * Splits a list of thumbnails into React Elements with a maximum of
+     * {@link rowLength} thumbnails in each.
+     *
+     * @param {Array} thumbnails - The list of thumbnails that should be split
+     * into separate row groupings.
+     * @param {number} rowLength - How many thumbnails should be in each row.
+     * @private
+     * @returns {ReactElement[]}
+     */
+    _groupIntoRows(thumbnails, rowLength) {
+        const rowElements = [];
+
+        for (let i = 0; i < thumbnails.length; i++) {
+            if (i % rowLength === 0) {
+                const thumbnailsInRow
+                    = thumbnails.slice(i, i + rowLength);
+
+                rowElements.push(
+                    <View
+                        key = { rowElements.length }
+                        style = { styles.tileViewRow }>
+                        { thumbnailsInRow }
+                    </View>
+                );
+            }
+        }
+
+        return rowElements;
+    }
+
+    _onDimensionsChanged: (width: number, height: number) => void;
+
+    /**
+     * Updates the known available state for {@link TileView} to occupy.
+     *
+     * @param {number} width - The component's current width.
+     * @param {number} height - The component's current height.
+     * @private
+     * @returns {void}
+     */
+    _onDimensionsChanged(width: number, height: number) {
+        this.setState({
+            height,
+            width
+        });
+    }
+
+    /**
+     * Creates React Elements to display each participant in a thumbnail. Each
+     * tile will be.
+     *
+     * @private
+     * @returns {ReactElement[]}
+     */
+    _renderThumbnails() {
+        const styleOverrides = {
+            aspectRatio: TILE_ASPECT_RATIO,
+            flex: 0,
+            height: this._getTileDimensions().height,
+            width: null
+        };
+
+        return this._getSortedParticipants()
+            .map(participant => (
+                <Thumbnail
+                    disablePin = { true }
+                    disableTint = { true }
+                    key = { participant.id }
+                    participant = { participant }
+                    styleOverrides = { styleOverrides } />));
+    }
+
+    /**
+     * Sets the receiver video quality based on the dimensions of the thumbnails
+     * that are displayed.
+     *
+     * @private
+     * @returns {void}
+     */
+    _updateReceiverQuality() {
+        const { height } = this._getTileDimensions();
+        const qualityLevel = getNearestReceiverVideoQualityLevel(height);
+
+        this.props.dispatch(setMaxReceiverVideoQuality(qualityLevel));
+    }
+}
+
+/**
+ * Maps (parts of) the redux state to the associated {@code TileView}'s props.
+ *
+ * @param {Object} state - The redux state.
+ * @private
+ * @returns {{
+ *     _participants: Participant[]
+ * }}
+ */
+function _mapStateToProps(state) {
+    return {
+        _participants: state['features/base/participants']
+    };
+}
+
+export default connect(_mapStateToProps)(makeAspectRatioAware(TileView));

react/features/filmstrip/components/native/index.js

@@ -1,2 +1,3 @@
 export { default as Filmstrip } from './Filmstrip';
+export { default as TileView } from './TileView';
 export { default as styles } from './styles';

react/features/filmstrip/components/styles.js

@@ -145,5 +145,18 @@ export default {
             width: 5
         },
         shadowRadius: 5
+    },
+
+    tileView: {
+        alignSelf: 'center'
+    },
+
+    tileViewRows: {
+        justifyContent: 'center'
+    },
+
+    tileViewRow: {
+        flexDirection: 'row',
+        justifyContent: 'center'
     }
 };

react/features/large-video/components/LargeVideo.native.js

@@ -17,7 +17,7 @@ type Props = {
     /**
      * Callback to invoke when the {@code LargeVideo} is clicked/pressed.
      */
-    onPress: Function,
+    onClick: Function,
 
     /**
      * The ID of the participant (to be) depicted by LargeVideo.
@@ -114,8 +114,8 @@ class LargeVideo extends Component<Props, State> {
             useConnectivityInfoLabel
         } = this.state;
         const {
-            onPress,
-            _participantId
+            _participantId,
+            onClick
         } = this.props;
 
         return (
@@ -123,7 +123,7 @@ class LargeVideo extends Component<Props, State> {
                 onDimensionsChanged = { this._onDimensionsChanged }>
                 <ParticipantView
                     avatarSize = { avatarSize }
-                    onPress = { onPress }
+                    onPress = { onClick }
                     participantId = { _participantId }
                     style = { styles.largeVideo }
                     testHintId = 'org.jitsi.meet.LargeVideo'

react/features/toolbox/components/native/OverflowMenu.js

@@ -9,6 +9,7 @@ import { PictureInPictureButton } from '../../../mobile/picture-in-picture';
 import { LiveStreamButton, RecordButton } from '../../../recording';
 import { RoomLockButton } from '../../../room-lock';
 import { ClosedCaptionButton } from '../../../subtitles';
+import { TileViewButton } from '../../../video-layout';
 
 import AudioOnlyButton from './AudioOnlyButton';
 import { overflowMenuItemStyles } from './styles';
@@ -73,6 +74,7 @@ class OverflowMenu extends Component<Props> {
                 <ClosedCaptionButton { ...buttonProps } />
                 <RecordButton { ...buttonProps } />
                 <LiveStreamButton { ...buttonProps } />
+                <TileViewButton { ...buttonProps } />
                 <PictureInPictureButton { ...buttonProps } />
             </BottomSheet>
         );

react/features/video-layout/components/TileViewButton.js

@@ -38,6 +38,7 @@ type Props = AbstractButtonProps & {
 class TileViewButton<P: Props> extends AbstractButton<P, *> {
     accessibilityLabel = 'toolbar.accessibilityLabel.tileView';
     iconName = 'icon-tiles-many';
+    label = 'toolbar.tileViewToggle';
     toggledIconName = 'icon-tiles-many toggled';
     tooltip = 'toolbar.tileViewToggle';
 

react/features/video-layout/functions.js

@@ -74,7 +74,8 @@ export function shouldDisplayTileView(state: Object = {}) {
     return Boolean(
         state['features/video-layout']
             && state['features/video-layout'].tileViewEnabled
-            && !state['features/etherpad'].editing
+            && (!state['features/etherpad']
+                || !state['features/etherpad'].editing)
 
             // Truthy check is needed for interfaceConfig to prevent errors on
             // mobile which does not have interfaceConfig. On web, tile view