react-native/Libraries/AppRegistry/AppRegistry.js

69 lines
1.9 KiB
JavaScript

/**
* Copyright 2004-present Facebook. All Rights Reserved.
*
* @providesModule AppRegistry
*/
'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 = {};
/**
* `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) {
for (var i = 0; i < config.length; ++i) {
if (config[i].run) {
AppRegistry.registerRunnable(config[i].appKey, config[i].run);
} else {
AppRegistry.registerComponent(config[i].appKey, config[i].component);
}
}
},
registerComponent: function(appKey, getComponentFunc) {
runnables[appKey] = {
run: (appParameters) =>
renderApplication(getComponentFunc(), appParameters.initialProps, appParameters.rootTag)
};
return appKey;
},
registerRunnable: function(appKey, func) {
runnables[appKey] = {run: func};
return appKey;
},
runApplication: function(appKey, appParameters) {
console.log(
'Running application "' + appKey + '" with appParams: ',
appParameters
);
invariant(
runnables[appKey] && runnables[appKey].run,
'Application ' + appKey + ' has not been registered.'
);
runnables[appKey].run(appParameters);
},
};
module.exports = AppRegistry;