jiti-meet/react/features/app/components/AbstractApp.js

426 lines
14 KiB
JavaScript

import PropTypes from 'prop-types';
import React, { Component } from 'react';
import { I18nextProvider } from 'react-i18next';
import { Provider } from 'react-redux';
import { compose, createStore } from 'redux';
import Thunk from 'redux-thunk';
import { i18next } from '../../base/i18n';
import {
localParticipantJoined,
localParticipantLeft
} from '../../base/participants';
import { RouteRegistry } from '../../base/react';
import { MiddlewareRegistry, ReducerRegistry } from '../../base/redux';
import { toURLString } from '../../base/util';
import { appNavigate, appWillMount, appWillUnmount } from '../actions';
declare var APP: Object;
/**
* The default URL to open if no other was specified to {@code AbstractApp}
* via props.
*/
const DEFAULT_URL = 'https://meet.jit.si';
/**
* Base (abstract) class for main App component.
*
* @abstract
*/
export class AbstractApp extends Component {
/**
* {@code AbstractApp} component's property types.
*
* @static
*/
static propTypes = {
/**
* The default URL {@code AbstractApp} is to open when not in any
* conference/room.
*/
defaultURL: PropTypes.string,
/**
* (Optional) redux store for this app.
*/
store: PropTypes.object,
// XXX Refer to the implementation of loadURLObject: in
// ios/sdk/src/JitsiMeetView.m for further information.
timestamp: PropTypes.any,
/**
* The URL, if any, with which the app was launched.
*/
url: PropTypes.oneOfType([
PropTypes.object,
PropTypes.string
])
};
/**
* Initializes a new {@code AbstractApp} instance.
*
* @param {Object} props - The read-only React {@code Component} props with
* which the new instance is to be initialized.
*/
constructor(props) {
super(props);
this.state = {
/**
* The Route rendered by this {@code AbstractApp}.
*
* @type {Route}
*/
route: undefined,
/**
* The redux store used by this {@code AbstractApp}.
*
* @type {Store}
*/
store: this._maybeCreateStore(props)
};
}
/**
* Init lib-jitsi-meet and create local participant when component is going
* to be mounted.
*
* @inheritdoc
*/
componentWillMount() {
const dispatch = this._getStore().dispatch;
dispatch(appWillMount(this));
// FIXME I believe it makes more sense for a middleware to dispatch
// localParticipantJoined on APP_WILL_MOUNT because the order of actions
// is important, not the call site. Moreover, we've got localParticipant
// business logic in the React Component (i.e. UI) AbstractApp now.
let localParticipant;
if (typeof APP === 'object') {
localParticipant = {
avatarID: APP.settings.getAvatarId(),
avatarURL: APP.settings.getAvatarUrl(),
email: APP.settings.getEmail(),
name: APP.settings.getDisplayName()
};
}
dispatch(localParticipantJoined(localParticipant));
// If a URL was explicitly specified to this React Component, then open
// it; otherwise, use a default.
this._openURL(toURLString(this.props.url) || this._getDefaultURL());
}
/**
* Notifies this mounted React {@code Component} that it will receive new
* props. Makes sure that this {@code AbstractApp} has a redux store to use.
*
* @inheritdoc
* @param {Object} nextProps - The read-only React {@code Component} props
* that this instance will receive.
* @returns {void}
*/
componentWillReceiveProps(nextProps) {
// The consumer of this AbstractApp did not provide a redux store.
if (typeof nextProps.store === 'undefined'
// The consumer of this AbstractApp did provide a redux store
// before. Which means that the consumer changed their mind. In
// such a case this instance should create its own internal
// redux store. If the consumer did not provide a redux store
// before, then this instance is using its own internal redux
// store already.
&& typeof this.props.store !== 'undefined') {
this.setState({
store: this._maybeCreateStore(nextProps)
});
}
// Deal with URL changes.
let { url } = nextProps;
url = toURLString(url);
if (toURLString(this.props.url) !== url
// XXX Refer to the implementation of loadURLObject: in
// ios/sdk/src/JitsiMeetView.m for further information.
|| this.props.timestamp !== nextProps.timestamp) {
this._openURL(url || this._getDefaultURL());
}
}
/**
* Dispose lib-jitsi-meet and remove local participant when component is
* going to be unmounted.
*
* @inheritdoc
*/
componentWillUnmount() {
const dispatch = this._getStore().dispatch;
dispatch(localParticipantLeft());
dispatch(appWillUnmount(this));
}
/**
* Gets a {@code Location} object from the window with information about the
* current location of the document. Explicitly defined to allow extenders
* to override because React Native does not usually have a location
* property on its window unless debugging remotely in which case the
* browser that is the remote debugger will provide a location property on
* the window.
*
* @public
* @returns {Location} A {@code Location} object with information about the
* current location of the document.
*/
getWindowLocation() {
return undefined;
}
/**
* Implements React's {@link Component#render()}.
*
* @inheritdoc
* @returns {ReactElement}
*/
render() {
const { route } = this.state;
if (route) {
return (
<I18nextProvider i18n = { i18next }>
<Provider store = { this._getStore() }>
{
this._createElement(route.component)
}
</Provider>
</I18nextProvider>
);
}
return null;
}
/**
* Creates a {@link ReactElement} from the specified component, the
* specified props and the props of this {@code AbstractApp} which are
* suitable for propagation to the children of this {@code Component}.
*
* @param {Component} component - The component from which the
* {@code ReactElement} is to be created.
* @param {Object} props - The read-only React {@code Component} props with
* which the {@code ReactElement} is to be initialized.
* @returns {ReactElement}
* @protected
*/
_createElement(component, props) {
/* eslint-disable no-unused-vars */
const {
// Don't propagate the dispatch and store props because they usually
// come from react-redux and programmers don't really expect them to
// be inherited but rather explicitly connected.
dispatch, // eslint-disable-line react/prop-types
store,
// The following props were introduced to be consumed entirely by
// AbstractApp:
defaultURL,
url,
// The remaining props, if any, are considered suitable for
// propagation to the children of this Component.
...thisProps
} = this.props;
/* eslint-enable no-unused-vars */
return React.createElement(component, {
...thisProps,
...props
});
}
/**
* Initializes a new redux store instance suitable for use by this
* {@code AbstractApp}.
*
* @private
* @returns {Store} - A new redux store instance suitable for use by
* this {@code AbstractApp}.
*/
_createStore() {
// Create combined reducer from all reducers in ReducerRegistry.
const reducer = ReducerRegistry.combineReducers();
// Apply all registered middleware from the MiddlewareRegistry and
// additional 3rd party middleware:
// - Thunk - allows us to dispatch async actions easily. For more info
// @see https://github.com/gaearon/redux-thunk.
let middleware = MiddlewareRegistry.applyMiddleware(Thunk);
// Try to enable Redux DevTools Chrome extension in order to make it
// available for the purposes of facilitating development.
let devToolsExtension;
if (typeof window === 'object'
&& (devToolsExtension = window.devToolsExtension)) {
middleware = compose(middleware, devToolsExtension());
}
return createStore(reducer, middleware);
}
/**
* Gets the default URL to be opened when this {@code App} mounts.
*
* @protected
* @returns {string} The default URL to be opened when this {@code App}
* mounts.
*/
_getDefaultURL() {
// If the execution environment provides a Location abstraction, then
// this App at already at that location but it must be made aware of the
// fact.
const windowLocation = this.getWindowLocation();
if (windowLocation) {
const href = windowLocation.toString();
if (href) {
return href;
}
}
return this.props.defaultURL || DEFAULT_URL;
}
/**
* Gets the redux store used by this {@code AbstractApp}.
*
* @protected
* @returns {Store} - The redux store used by this {@code AbstractApp}.
*/
_getStore() {
let store = this.state.store;
if (typeof store === 'undefined') {
store = this.props.store;
}
return store;
}
/**
* Creates a redux store to be used by this {@code AbstractApp} if such as a
* store is not defined by the consumer of this {@code AbstractApp} through
* its read-only React {@code Component} props.
*
* @param {Object} props - The read-only React {@code Component} props that
* will eventually be received by this {@code AbstractApp}.
* @private
* @returns {Store} - The redux store to be used by this
* {@code AbstractApp}.
*/
_maybeCreateStore(props) {
// The application Jitsi Meet is architected with redux. However, I do
// not want consumers of the App React Component to be forced into
// dealing with redux. If the consumer did not provide an external redux
// store, utilize an internal redux store.
let store = props.store;
if (typeof store === 'undefined') {
store = this._createStore();
// This is temporary workaround to be able to dispatch actions from
// non-reactified parts of the code (conference.js for example).
// Don't use in the react code!!!
// FIXME: remove when the reactification is finished!
if (typeof APP !== 'undefined') {
APP.store = store;
}
}
return store;
}
/**
* Navigates to a specific Route.
*
* @param {Route} route - The Route to which to navigate.
* @returns {Promise}
*/
_navigate(route) {
if (RouteRegistry.areRoutesEqual(this.state.route, route)) {
return Promise.resolve();
}
let nextState = {
route
};
// The Web App was using react-router so it utilized react-router's
// onEnter. During the removal of react-router, modifications were
// minimized by preserving the onEnter interface:
// (1) Router would provide its nextState to the Route's onEnter. As the
// role of Router is now this AbstractApp, provide its nextState.
// (2) A replace function would be provided to the Route in case it
// chose to redirect to another path.
route && this._onRouteEnter(route, nextState, pathname => {
this._openURL(pathname);
// Do not proceed with the route because it chose to redirect to
// another path.
nextState = undefined;
});
// XXX React's setState is asynchronous which means that the value of
// this.state.route above may not even be correct. If the check is
// performed before setState completes, the app may not navigate to the
// expected route. In order to mitigate the problem, _navigate was
// changed to return a Promise.
return new Promise(resolve => {
if (nextState) {
this.setState(nextState, resolve);
} else {
resolve();
}
});
}
/**
* Notifies this {@code App} that a specific Route is about to be rendered.
*
* @param {Route} route - The Route that is about to be rendered.
* @private
* @returns {void}
*/
_onRouteEnter(route, ...args) {
// Notify the route that it is about to be entered.
const { onEnter } = route;
typeof onEnter === 'function' && onEnter(...args);
}
/**
* Navigates this {@code AbstractApp} to (i.e. opens) a specific URL.
*
* @param {string|Object} url - The URL to navigate this {@code AbstractApp}
* to (i.e. the URL to open).
* @protected
* @returns {void}
*/
_openURL(url) {
this._getStore().dispatch(appNavigate(toURLString(url)));
}
}