jiti-meet/react/features/app/components/App.native.js

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/* global __DEV__ */
import { Linking } from 'react-native';
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import { Platform } from '../../base/react';
import '../../mobile/audio-mode';
import '../../mobile/background';
import '../../mobile/full-screen';
import '../../mobile/proximity';
import '../../mobile/wake-lock';
import { AbstractApp } from './AbstractApp';
/**
* Root application component.
*
* @extends AbstractApp
*/
export class App extends AbstractApp {
/**
* App component's property types.
*
* @static
*/
static propTypes = AbstractApp.propTypes
/**
* Initializes a new App instance.
*
* @param {Object} props - The read-only React Component props with which
* the new instance is to be initialized.
*/
constructor(props) {
super(props);
// Bind event handlers so they are only bound once for every instance.
this._onLinkingURL = this._onLinkingURL.bind(this);
// In the Release configuration, React Native will (intentionally) throw
// an unhandled JavascriptException for an unhandled JavaScript error.
// This will effectively kill the application. In accord with the Web,
// do not kill the application.
this._maybeDisableExceptionsManager();
}
/**
* Subscribe to notifications about activating URLs registered to be handled
* by this app.
*
* @inheritdoc
* @returns {void}
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* @see https://facebook.github.io/react-native/docs/linking.html
*/
componentWillMount() {
super.componentWillMount();
Linking.addEventListener('url', this._onLinkingURL);
}
/**
* Unsubscribe from notifications about activating URLs registered to be
* handled by this app.
*
* @inheritdoc
* @returns {void}
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* @see https://facebook.github.io/react-native/docs/linking.html
*/
componentWillUnmount() {
Linking.removeEventListener('url', this._onLinkingURL);
super.componentWillUnmount();
}
/**
* Attempts to disable the use of React Native
* {@link ExceptionsManager#handleException} on platforms and in
* configurations on/in which the use of the method in questions has been
* determined to be undesirable. For example, React Native will
* (intentionally) throw an unhandled JavascriptException for an
* unhandled JavaScript error in the Release configuration. This will
* effectively kill the application. In accord with the Web, do not kill the
* application.
*
* @private
* @returns {void}
*/
_maybeDisableExceptionsManager() {
if (__DEV__) {
// As mentioned above, only the Release configuration was observed
// to suffer.
return;
}
if (Platform.OS !== 'android') {
// A solution based on RTCSetFatalHandler was implemented on iOS and
// it is preferred because it is at a later step of the
// error/exception handling and it is specific to fatal
// errors/exceptions which were observed to kill the application.
// The solution implemented bellow was tested on Android only so it
// is considered safest to use it there only.
return;
}
const oldHandler = global.ErrorUtils.getGlobalHandler();
const newHandler = _handleException;
if (!oldHandler || oldHandler !== newHandler) {
newHandler.next = oldHandler;
global.ErrorUtils.setGlobalHandler(newHandler);
}
}
/**
* Notified by React's Linking API that a specific URL registered to be
* handled by this App was activated.
*
* @param {Object} event - The details of the notification/event.
* @param {string} event.url - The URL registered to be handled by this App
* which was activated.
* @private
* @returns {void}
*/
_onLinkingURL(event) {
this._openURL(event.url);
}
}
/**
* Handles a (possibly unhandled) JavaScript error by preventing React Native
* from converting a fatal error into an unhandled native exception which will
* kill the application.
*
* @param {Error} error - The (possibly unhandled) JavaScript error to handle.
* @param {boolean} fatal - True if the specified error is fatal; otherwise,
* false.
* @private
* @returns {void}
*/
function _handleException(error, fatal) {
if (fatal) {
// In the Release configuration, React Native will (intentionally) throw
// an unhandled JavascriptException for an unhandled JavaScript error.
// This will effectively kill the application. In accord with the Web,
// do not kill the application.
console.error(error);
} else {
// Forward to the next globalHandler of ErrorUtils.
const next = _handleException.next;
typeof next === 'function' && next(error, fatal);
}
}