react app

react-app/node_modules/react/lib/SyntheticKeyboardEvent.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 SyntheticKeyboardEvent
+ * @typechecks static-only
+ */
+
+'use strict';
+
+var SyntheticUIEvent = require("./SyntheticUIEvent");
+
+var getEventCharCode = require("./getEventCharCode");
+var getEventKey = require("./getEventKey");
+var getEventModifierState = require("./getEventModifierState");
+
+/**
+ * @interface KeyboardEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var KeyboardEventInterface = {
+  key: getEventKey,
+  location: null,
+  ctrlKey: null,
+  shiftKey: null,
+  altKey: null,
+  metaKey: null,
+  repeat: null,
+  locale: null,
+  getModifierState: getEventModifierState,
+  // Legacy Interface
+  charCode: function(event) {
+    // `charCode` is the result of a KeyPress event and represents the value of
+    // the actual printable character.
+
+    // KeyPress is deprecated, but its replacement is not yet final and not
+    // implemented in any major browser. Only KeyPress has charCode.
+    if (event.type === 'keypress') {
+      return getEventCharCode(event);
+    }
+    return 0;
+  },
+  keyCode: function(event) {
+    // `keyCode` is the result of a KeyDown/Up event and represents the value of
+    // physical keyboard key.
+
+    // The actual meaning of the value depends on the users' keyboard layout
+    // which cannot be detected. Assuming that it is a US keyboard layout
+    // provides a surprisingly accurate mapping for US and European users.
+    // Due to this, it is left to the user to implement at this time.
+    if (event.type === 'keydown' || event.type === 'keyup') {
+      return event.keyCode;
+    }
+    return 0;
+  },
+  which: function(event) {
+    // `which` is an alias for either `keyCode` or `charCode` depending on the
+    // type of the event.
+    if (event.type === 'keypress') {
+      return getEventCharCode(event);
+    }
+    if (event.type === 'keydown' || event.type === 'keyup') {
+      return event.keyCode;
+    }
+    return 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 {SyntheticUIEvent}
+ */
+function SyntheticKeyboardEvent(dispatchConfig, dispatchMarker, nativeEvent) {
+  SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent);
+}
+
+SyntheticUIEvent.augmentClass(SyntheticKeyboardEvent, KeyboardEventInterface);
+
+module.exports = SyntheticKeyboardEvent;