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86 lines
2.7 KiB
86 lines
2.7 KiB
10 years ago
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/**
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* Copyright 2013-2015, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule SyntheticKeyboardEvent
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* @typechecks static-only
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*/
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'use strict';
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var SyntheticUIEvent = require("./SyntheticUIEvent");
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var getEventCharCode = require("./getEventCharCode");
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var getEventKey = require("./getEventKey");
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var getEventModifierState = require("./getEventModifierState");
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/**
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* @interface KeyboardEvent
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* @see http://www.w3.org/TR/DOM-Level-3-Events/
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*/
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var KeyboardEventInterface = {
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key: getEventKey,
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location: null,
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ctrlKey: null,
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shiftKey: null,
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altKey: null,
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metaKey: null,
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repeat: null,
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locale: null,
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getModifierState: getEventModifierState,
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// Legacy Interface
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charCode: function(event) {
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// `charCode` is the result of a KeyPress event and represents the value of
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// the actual printable character.
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// KeyPress is deprecated, but its replacement is not yet final and not
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// implemented in any major browser. Only KeyPress has charCode.
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if (event.type === 'keypress') {
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return getEventCharCode(event);
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}
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return 0;
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},
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keyCode: function(event) {
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// `keyCode` is the result of a KeyDown/Up event and represents the value of
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// physical keyboard key.
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// The actual meaning of the value depends on the users' keyboard layout
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// which cannot be detected. Assuming that it is a US keyboard layout
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// provides a surprisingly accurate mapping for US and European users.
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// Due to this, it is left to the user to implement at this time.
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if (event.type === 'keydown' || event.type === 'keyup') {
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return event.keyCode;
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}
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return 0;
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},
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which: function(event) {
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// `which` is an alias for either `keyCode` or `charCode` depending on the
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// type of the event.
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if (event.type === 'keypress') {
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return getEventCharCode(event);
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}
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if (event.type === 'keydown' || event.type === 'keyup') {
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return event.keyCode;
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}
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return 0;
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}
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};
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/**
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* @param {object} dispatchConfig Configuration used to dispatch this event.
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* @param {string} dispatchMarker Marker identifying the event target.
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* @param {object} nativeEvent Native browser event.
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* @extends {SyntheticUIEvent}
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*/
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function SyntheticKeyboardEvent(dispatchConfig, dispatchMarker, nativeEvent) {
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SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent);
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}
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SyntheticUIEvent.augmentClass(SyntheticKeyboardEvent, KeyboardEventInterface);
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module.exports = SyntheticKeyboardEvent;
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