twister-react/node_modules/react/lib/MobileSafariClickEventPlugin.js

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2015-04-21 19:38:17 +02:00
/**
* Copyright 2013-2015, 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 MobileSafariClickEventPlugin
* @typechecks static-only
*/
'use strict';
var EventConstants = require("./EventConstants");
var emptyFunction = require("./emptyFunction");
var topLevelTypes = EventConstants.topLevelTypes;
/**
* Mobile Safari does not fire properly bubble click events on non-interactive
* elements, which means delegated click listeners do not fire. The workaround
* for this bug involves attaching an empty click listener on the target node.
*
* This particular plugin works around the bug by attaching an empty click
* listener on `touchstart` (which does fire on every element).
*/
var MobileSafariClickEventPlugin = {
eventTypes: null,
/**
* @param {string} topLevelType Record from `EventConstants`.
* @param {DOMEventTarget} topLevelTarget The listening component root node.
* @param {string} topLevelTargetID ID of `topLevelTarget`.
* @param {object} nativeEvent Native browser event.
* @return {*} An accumulation of synthetic events.
* @see {EventPluginHub.extractEvents}
*/
extractEvents: function(
topLevelType,
topLevelTarget,
topLevelTargetID,
nativeEvent) {
if (topLevelType === topLevelTypes.topTouchStart) {
var target = nativeEvent.target;
if (target && !target.onclick) {
target.onclick = emptyFunction;
}
}
}
};
module.exports = MobileSafariClickEventPlugin;