react app

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

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+/**
+ * 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;