129 lines
4.1 KiB
JavaScript
129 lines
4.1 KiB
JavaScript
// @flow
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import { Immersive } from 'react-native-immersive';
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import { APP_WILL_MOUNT, APP_WILL_UNMOUNT } from '../../base/app';
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import { getCurrentConference } from '../../base/conference';
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import { Platform } from '../../base/react';
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import { MiddlewareRegistry, StateListenerRegistry } from '../../base/redux';
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import { _setImmersiveListener as _setImmersiveListenerA } from './actions';
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import { _SET_IMMERSIVE_LISTENER } from './actionTypes';
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/**
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* Middleware that captures conference actions and activates or deactivates the
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* full screen mode. On iOS it hides the status bar, and on Android it uses the
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* immersive mode:
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* https://developer.android.com/training/system-ui/immersive.html
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* In immersive mode the status and navigation bars are hidden and thus the
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* entire screen will be covered by our application.
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*
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* @param {Store} store - The redux store.
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* @returns {Function}
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*/
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MiddlewareRegistry.register(store => next => action => {
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switch (action.type) {
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case _SET_IMMERSIVE_LISTENER:
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return _setImmersiveListenerF(store, next, action);
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case APP_WILL_MOUNT: {
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const result = next(action);
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store.dispatch(
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_setImmersiveListenerA(_onImmersiveChange.bind(undefined, store)));
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return result;
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}
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case APP_WILL_UNMOUNT:
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store.dispatch(_setImmersiveListenerA(undefined));
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break;
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}
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return next(action);
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});
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StateListenerRegistry.register(
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/* selector */ state => {
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const { audioOnly } = state['features/base/conference'];
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const conference = getCurrentConference(state);
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return conference ? !audioOnly : false;
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},
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/* listener */ fullScreen => _setFullScreen(fullScreen)
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);
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/**
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* Handler for Immersive mode changes. This will be called when Android's
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* immersive mode changes. This can happen without us wanting, so re-evaluate if
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* immersive mode is desired and reactivate it if needed.
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*
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* @param {Object} store - The redux store.
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* @private
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* @returns {void}
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*/
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function _onImmersiveChange({ getState }) {
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const state = getState();
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const { appState } = state['features/background'];
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if (appState === 'active') {
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const { audioOnly } = state['features/base/conference'];
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const conference = getCurrentConference(state);
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const fullScreen = conference ? !audioOnly : false;
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_setFullScreen(fullScreen);
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}
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}
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/**
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* Activates/deactivates the full screen mode. On iOS it will hide the status
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* bar, and on Android it will turn immersive mode on.
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*
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* @param {boolean} fullScreen - True to set full screen mode, false to
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* deactivate it.
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* @private
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* @returns {void}
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*/
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function _setFullScreen(fullScreen: boolean) {
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// XXX The React Native module Immersive is only implemented on Android and
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// throws on other platforms.
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if (Platform.OS === 'android') {
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fullScreen ? Immersive.on() : Immersive.off();
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}
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}
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/**
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* Notifies the feature filmstrip that the action
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* {@link _SET_IMMERSIVE_LISTENER} is being dispatched within a specific redux
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* store.
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*
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* @param {Store} store - The redux store in which the specified action is being
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* dispatched.
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* @param {Dispatch} next - The redux dispatch function to dispatch the
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* specified action to the specified store.
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* @param {Action} action - The redux action {@code _SET_IMMERSIVE_LISTENER}
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* which is being dispatched in the specified store.
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* @private
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* @returns {Object} The value returned by {@code next(action)}.
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*/
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function _setImmersiveListenerF({ getState }, next, action) {
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// XXX The React Native module Immersive is only implemented on Android and
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// throws on other platforms.
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if (Platform.OS === 'android') {
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// Remove the old Immersive listener and add the new one.
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const { listener: oldListener } = getState()['features/full-screen'];
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const result = next(action);
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const { listener: newListener } = getState()['features/full-screen'];
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if (oldListener !== newListener) {
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oldListener && Immersive.removeImmersiveListener(oldListener);
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newListener && Immersive.addImmersiveListener(newListener);
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}
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return result;
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}
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return next(action);
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}
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