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example.js
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example.js
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/**
* Copyright (c) 2014 Famous Industries, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* @license MIT
*/
/**
* EventMapper
* ------------
*
* EventMapper is a way to route events to various EventHandlers
* based on the type of the event.
*
* In this example, we pipe all events from eventHandlerA to
* the EventMapper. This filter will decide whether to send
* the event to eventHandlerB or eventHandlerC based on the
* direction property of the data sent along with the event.
*/
define(function(require, exports, module) {
var Engine = require('famous/core/Engine');
var EventHandler = require('famous/core/EventHandler');
var EventMapper = require('famous/events/EventMapper');
Engine.createContext();
var eventHandlerA = new EventHandler();
var eventHandlerB = new EventHandler();
var eventHandlerC = new EventHandler();
var myMapper = new EventMapper(function(type, data) {
return (data && (data.direction === 'x')) ? eventHandlerB : eventHandlerC;
});
eventHandlerA.pipe(myMapper);
eventHandlerB.on('A', function(data){
alert('B direction : ' + data.direction);
});
eventHandlerC.on('A', function(data){
alert('C direction : ' + data.direction);
});
var currentDirection = 'x';
Engine.on('click', function() {
eventHandlerA.trigger('A', {direction : currentDirection});
currentDirection = currentDirection === 'x' ? 'y' : 'x';
});
});