react app

react-app/node_modules/react/lib/SyntheticUIEvent.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 SyntheticUIEvent
+ * @typechecks static-only
+ */
+
+'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 != null && 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.
+ * @extends {SyntheticEvent}
+ */
+function SyntheticUIEvent(dispatchConfig, dispatchMarker, nativeEvent) {
+  SyntheticEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent);
+}
+
+SyntheticEvent.augmentClass(SyntheticUIEvent, UIEventInterface);
+
+module.exports = SyntheticUIEvent;