ext/src/Ext-more文件中：
/**
* Loads Ext.app.Application class and starts it up with given configuration after the
* page is ready.
*
* See `Ext.app.Application` for details.
*
* @param {Object/String} config Application config object or name of a class derived from Ext.app.Application.
*/
Ext.application = function(config) {
var App, paths, ns;
if (typeof config === "string") {
Ext.require(config, function(){
App = Ext.ClassManager.get(config);
});
}
else {
// We have to process `paths` before creating Application class,
// or `requires` won't work.
Ext.Loader.setPath(, config.appFolder || 'app');
if (paths = config.paths) {
for (ns in paths) {
if (paths.hasOwnProperty(ns)) {
Ext.Loader.setPath(ns, paths[ns]);
}
}
}
config['paths processed'] = true;
// Let Ext.define do the hard work but don't assign a class name.
// Ext.define 详见 wangyuelucky.blog.51cto.com/1011508/1594628
Ext.define( + ".$application", Ext.apply({
extend: 'Ext.app.Application' // can be replaced by config!
}, config),
// call here when the App class gets full defined
function () {
App = this;
});
}
Ext.onReady(function() {
// this won't be called until App has been created and its requires have been
// met...
Ext.app.Application.instance = new App();
});
};
