react-native/Libraries/AppRegistry/AppRegistry.js

86 lines
2.7 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule AppRegistry
* @flow
*/
'use strict';
var invariant = require('invariant');
var renderApplication = require('renderApplication');
if (__DEV__) {
// In order to use Cmd+P to record/dump perf data, we need to make sure
// this module is available in the bundle
require('RCTRenderingPerf');
}
var runnables = {};
type AppConfig = {
appKey: string;
component: ReactClass<any, any, any>;
run?: Function;
};
/**
* `AppRegistry` is the JS entry point to running all React Native apps. App
* root components should register themselves with
* `AppRegistry.registerComponent`, then the native system can load the bundle
* for the app and then actually run the app when it's ready by invoking
* `AppRegistry.runApplication`.
*
* `AppRegistry` should be `require`d early in the `require` sequence to make
* sure the JS execution environment is setup before other modules are
* `require`d.
*/
var AppRegistry = {
registerConfig: function(config: Array<AppConfig>) {
for (var i = 0; i < config.length; ++i) {
var appConfig = config[i];
if (appConfig.run) {
AppRegistry.registerRunnable(appConfig.appKey, appConfig.run);
} else {
AppRegistry.registerComponent(appConfig.appKey, appConfig.component);
}
}
},
registerComponent: function(appKey: string, getComponentFunc: Function): string {
runnables[appKey] = {
run: (appParameters) =>
renderApplication(getComponentFunc(), appParameters.initialProps, appParameters.rootTag)
};
return appKey;
},
registerRunnable: function(appKey: string, func: Function): string {
runnables[appKey] = {run: func};
return appKey;
},
runApplication: function(appKey: string, appParameters: any): void {
console.log(
'Running application "' + appKey + '" with appParams: ' +
JSON.stringify(appParameters) + '. ' +
'__DEV__ === ' + String(__DEV__) +
', development-level warning are ' + (__DEV__ ? 'ON' : 'OFF') +
', performance optimizations are ' + (__DEV__ ? 'OFF' : 'ON')
);
invariant(
runnables[appKey] && runnables[appKey].run,
'Application ' + appKey + ' has not been registered. This ' +
'is either due to a require() error during initialization ' +
'or failure to call AppRegistry.registerComponent.'
);
runnables[appKey].run(appParameters);
},
};
module.exports = AppRegistry;