176 lines
3.6 KiB
JavaScript
176 lines
3.6 KiB
JavaScript
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// Source: http://jsfiddle.net/vWx8V/
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// http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes
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/**
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* Conenience method returns corresponding value for given keyName or keyCode.
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*
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* @param {Mixed} keyCode {Number} or keyName {String}
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* @return {Mixed}
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* @api public
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*/
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function keyCode(searchInput) {
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// Keyboard Events
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if (searchInput && 'object' === typeof searchInput) {
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var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode
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if (hasKeyCode) searchInput = hasKeyCode
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}
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// Numbers
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if ('number' === typeof searchInput) return names[searchInput]
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// Everything else (cast to string)
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var search = String(searchInput)
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// check codes
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var foundNamedKey = codes[search.toLowerCase()]
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if (foundNamedKey) return foundNamedKey
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// check aliases
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var foundNamedKey = aliases[search.toLowerCase()]
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if (foundNamedKey) return foundNamedKey
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// weird character?
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if (search.length === 1) return search.charCodeAt(0)
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return undefined
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}
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/**
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* Compares a keyboard event with a given keyCode or keyName.
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*
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* @param {Event} event Keyboard event that should be tested
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* @param {Mixed} keyCode {Number} or keyName {String}
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* @return {Boolean}
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* @api public
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*/
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keyCode.isEventKey = function isEventKey(event, nameOrCode) {
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if (event && 'object' === typeof event) {
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var keyCode = event.which || event.keyCode || event.charCode
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if (keyCode === null || keyCode === undefined) { return false; }
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if (typeof nameOrCode === 'string') {
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// check codes
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var foundNamedKey = codes[nameOrCode.toLowerCase()]
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if (foundNamedKey) { return foundNamedKey === keyCode; }
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// check aliases
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var foundNamedKey = aliases[nameOrCode.toLowerCase()]
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if (foundNamedKey) { return foundNamedKey === keyCode; }
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} else if (typeof nameOrCode === 'number') {
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return nameOrCode === keyCode;
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}
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return false;
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}
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}
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exports = module.exports = keyCode;
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/**
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* Get by name
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*
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* exports.code['enter'] // => 13
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*/
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var codes = exports.code = exports.codes = {
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'backspace': 8,
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'tab': 9,
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'enter': 13,
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'shift': 16,
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'ctrl': 17,
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'alt': 18,
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'pause/break': 19,
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'caps lock': 20,
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'esc': 27,
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'space': 32,
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'page up': 33,
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'page down': 34,
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'end': 35,
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'home': 36,
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'left': 37,
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'up': 38,
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'right': 39,
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'down': 40,
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'insert': 45,
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'delete': 46,
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'command': 91,
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'left command': 91,
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'right command': 93,
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'numpad *': 106,
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'numpad +': 107,
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'numpad -': 109,
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'numpad .': 110,
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'numpad /': 111,
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'num lock': 144,
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'scroll lock': 145,
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'my computer': 182,
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'my calculator': 183,
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';': 186,
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'=': 187,
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',': 188,
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'-': 189,
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'.': 190,
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'/': 191,
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'`': 192,
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'[': 219,
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'\\': 220,
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']': 221,
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"'": 222
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}
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// Helper aliases
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var aliases = exports.aliases = {
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'windows': 91,
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'⇧': 16,
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'⌥': 18,
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'⌃': 17,
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'⌘': 91,
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'ctl': 17,
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'control': 17,
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'option': 18,
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'pause': 19,
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'break': 19,
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'caps': 20,
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'return': 13,
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'escape': 27,
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'spc': 32,
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'spacebar': 32,
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'pgup': 33,
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'pgdn': 34,
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'ins': 45,
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'del': 46,
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'cmd': 91
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}
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/*!
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* Programatically add the following
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*/
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// lower case chars
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for (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32
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// numbers
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for (var i = 48; i < 58; i++) codes[i - 48] = i
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// function keys
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for (i = 1; i < 13; i++) codes['f'+i] = i + 111
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// numpad keys
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for (i = 0; i < 10; i++) codes['numpad '+i] = i + 96
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/**
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* Get by code
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*
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* exports.name[13] // => 'Enter'
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*/
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var names = exports.names = exports.title = {} // title for backward compat
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// Create reverse mapping
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for (i in codes) names[codes[i]] = i
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// Add aliases
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for (var alias in aliases) {
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codes[alias] = aliases[alias]
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}
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