jsaction
Version:
Google's event delegation library
46 lines (38 loc) • 1.47 kB
JavaScript
// Copyright 2011 Google Inc. All Rights Reserved.
/**
*
* @fileoverview The entry point for a jsbinary that instantiates
* jsaction.EventContract and eventually passes it to an instance of
* jsaction.Dispatcher. This is meant to be inlined in the main HTML
* page.
*
* Cf. dispatcher_example.js, the external counterpart.
*
* This file serves as model for how Dispatcher and EventContract
* cooperate, and to check that the code jscompiles properly.
*/
goog.provide('jsaction.eventContractExample');
goog.require('jsaction.EventContract');
/**
* This function should be executed right when the page loads this
* code, which should be inline and right after the body.
*
* @param {Window} window The window of the page this event
* contract handles.
*/
function main(window) {
var evc = new jsaction.EventContract;
evc.addEvent('click');
evc.addContainer(/** @type {!Element} */(window.document.body));
// Cf. dispatcher_main.js.
window['dispatcherOnLoad'] = function(dispatcher) {
evc.dispatchTo(dispatcher);
};
}
// The function is exported first such that loading the code and
// executing it is decoupled, which makes for more
// clarity. Specifically, the code could be inlined in head, but the
// body can only be registered as a container for the event contract
// after the <body> start tag, because before that it doesn't exist.
// Also, this prevents the code from being eliminated by jscompiler.
window['main'] = main;