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SyntheticUIEvent.js
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SyntheticUIEvent.js
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/**
* Copyright 2013-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 SyntheticUIEvent
*/
'use strict';
var SyntheticEvent = require('SyntheticEvent');
var getEventTarget = require('getEventTarget');
/**
* @interface UIEvent
* @see http://www.w3.org/TR/DOM-Level-3-Events/
*/
var UIEventInterface = {
view: function(event) {
if (event.view) {
return event.view;
}
var target = getEventTarget(event);
if (target.window === target) {
// target is a window object
return target;
}
var doc = target.ownerDocument;
// TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
if (doc) {
return doc.defaultView || doc.parentWindow;
} else {
return window;
}
},
detail: function(event) {
return event.detail || 0;
},
};
/**
* @param {object} dispatchConfig Configuration used to dispatch this event.
* @param {string} dispatchMarker Marker identifying the event target.
* @param {object} nativeEvent Native browser event.
*/
function SyntheticUIEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
return SyntheticEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
}
SyntheticEvent.augmentClass(SyntheticUIEvent, UIEventInterface);
module.exports = SyntheticUIEvent;