122 lines
2.8 KiB
JavaScript
122 lines
2.8 KiB
JavaScript
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/* global define, KeyboardEvent, module */
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// https://github.com/cvan/keyboardevent-key-polyfill/blob/master/LICENSE.md
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(function () {
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var keyboardeventKeyPolyfill = {
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polyfill: polyfill,
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keys: {
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3: 'Cancel',
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6: 'Help',
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8: 'Backspace',
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9: 'Tab',
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12: 'Clear',
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13: 'Enter',
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16: 'Shift',
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17: 'Control',
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18: 'Alt',
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19: 'Pause',
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20: 'CapsLock',
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27: 'Escape',
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28: 'Convert',
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29: 'NonConvert',
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30: 'Accept',
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31: 'ModeChange',
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32: ' ',
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33: 'PageUp',
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34: 'PageDown',
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35: 'End',
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36: 'Home',
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37: 'ArrowLeft',
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38: 'ArrowUp',
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39: 'ArrowRight',
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40: 'ArrowDown',
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41: 'Select',
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42: 'Print',
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43: 'Execute',
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44: 'PrintScreen',
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45: 'Insert',
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46: 'Delete',
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48: ['0', ')'],
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49: ['1', '!'],
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50: ['2', '@'],
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51: ['3', '#'],
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52: ['4', '$'],
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53: ['5', '%'],
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54: ['6', '^'],
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55: ['7', '&'],
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56: ['8', '*'],
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57: ['9', '('],
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91: 'OS',
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93: 'ContextMenu',
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144: 'NumLock',
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145: 'ScrollLock',
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181: 'VolumeMute',
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182: 'VolumeDown',
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183: 'VolumeUp',
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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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224: 'Meta',
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225: 'AltGraph',
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246: 'Attn',
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247: 'CrSel',
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248: 'ExSel',
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249: 'EraseEof',
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250: 'Play',
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251: 'ZoomOut'
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}
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};
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// Function keys (F1-24).
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var i;
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for (i = 1; i < 25; i++) {
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keyboardeventKeyPolyfill.keys[111 + i] = 'F' + i;
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}
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// Printable ASCII characters.
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var letter = '';
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for (i = 65; i < 91; i++) {
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letter = String.fromCharCode(i);
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keyboardeventKeyPolyfill.keys[i] = [letter.toLowerCase(), letter.toUpperCase()];
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}
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function polyfill () {
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if (!('KeyboardEvent' in window) ||
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'key' in KeyboardEvent.prototype) {
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return false;
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}
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// Polyfill `key` on `KeyboardEvent`.
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var proto = {
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get: function (x) {
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var key = keyboardeventKeyPolyfill.keys[this.which || this.keyCode];
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if (Array.isArray(key)) {
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key = key[+this.shiftKey];
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}
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return key;
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}
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};
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Object.defineProperty(KeyboardEvent.prototype, 'key', proto);
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return proto;
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}
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if (typeof define === 'function' && define.amd) {
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define('keyboardevent-key-polyfill', keyboardeventKeyPolyfill);
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} else if (typeof exports !== 'undefined' && typeof module !== 'undefined') {
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module.exports = keyboardeventKeyPolyfill;
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} else if (window) {
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window.keyboardeventKeyPolyfill = keyboardeventKeyPolyfill;
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}
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})();
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