194 lines
4.2 KiB
JavaScript
194 lines
4.2 KiB
JavaScript
/*
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* jQuery Hotkeys Plugin
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* Copyright 2010, John Resig
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* Dual licensed under the MIT or GPL Version 2 licenses.
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*
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* Based upon the plugin by Tzury Bar Yochay:
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* http://github.com/tzuryby/hotkeys
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*
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* Original idea by:
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* Binny V A, http://www.openjs.com/scripts/events/keyboard_shortcuts/
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*/
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/*
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* One small change is: now keys are passed by object { keys: '...' }
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* Might be useful, when you want to pass some other data to your handler
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*/
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function initHotKeyPluggin(jQuery) {
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jQuery.hotkeys = {
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version: '0.8',
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specialKeys: {
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8: 'backspace',
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9: 'tab',
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10: 'return',
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13: 'enter',
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16: 'shift',
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17: 'ctrl',
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18: 'alt',
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19: 'pause',
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20: 'capslock',
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27: 'esc',
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32: 'space',
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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: 'left',
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38: 'up',
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39: 'right',
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40: 'down',
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45: 'insert',
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46: 'del',
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96: '0',
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97: '1',
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98: '2',
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99: '3',
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100: '4',
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101: '5',
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102: '6',
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103: '7',
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104: '8',
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105: '9',
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106: '*',
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107: '+',
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109: '-',
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110: '.',
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111: '/',
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112: 'f1',
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113: 'f2',
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114: 'f3',
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115: 'f4',
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116: 'f5',
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117: 'f6',
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118: 'f7',
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119: 'f8',
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120: 'f9',
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121: 'f10',
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122: 'f11',
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123: 'f12',
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144: 'numlock',
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145: 'scroll',
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186: ';',
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191: '/',
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220: '\\',
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222: "'",
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224: 'meta',
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},
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shiftNums: {
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'`': '~',
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1: '!',
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2: '@',
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3: '#',
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4: '$',
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5: '%',
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6: '^',
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7: '&',
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8: '*',
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9: '(',
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0: ')',
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'-': '_',
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'=': '+',
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';': ': ',
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"'": '"',
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',': '<',
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'.': '>',
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'/': '?',
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'\\': '|',
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},
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};
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function keyHandler(handleObj) {
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if (typeof handleObj.data === 'string') {
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handleObj.data = { keys: handleObj.data };
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}
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// Only care when a possible input has been specified
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if (!handleObj.data || !handleObj.data.keys || typeof handleObj.data.keys !== 'string') {
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return;
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}
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var origHandler = handleObj.handler,
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keys = handleObj.data.keys.toLowerCase().split(' '),
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textAcceptingInputTypes = [
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'text',
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'password',
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'number',
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'email',
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'url',
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'range',
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'date',
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'month',
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'week',
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'time',
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'datetime',
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'datetime-local',
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'search',
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'color',
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'tel',
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];
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handleObj.handler = function (event) {
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// Don't fire in text-accepting inputs that we didn't directly bind to
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if (
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this !== event.target &&
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(/textarea|select/i.test(event.target.nodeName) ||
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jQuery.inArray(event.target.type, textAcceptingInputTypes) > -1)
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) {
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return;
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}
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var special = jQuery.hotkeys.specialKeys[event.keyCode],
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character = String.fromCharCode(event.which).toLowerCase(),
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modif = '',
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possible = {};
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// check combinations (alt|ctrl|shift+anything)
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if (event.altKey && special !== 'alt') {
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modif += 'alt+';
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}
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if (event.ctrlKey && special !== 'ctrl') {
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modif += 'ctrl+';
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}
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// TODO: Need to make sure this works consistently across platforms
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if (event.metaKey && !event.ctrlKey && special !== 'meta') {
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modif += 'meta+';
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}
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if (event.shiftKey && special !== 'shift') {
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modif += 'shift+';
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}
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if (special) {
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possible[modif + special] = true;
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}
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if (character) {
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possible[modif + character] = true;
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possible[modif + jQuery.hotkeys.shiftNums[character]] = true;
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// "$" can be triggered as "Shift+4" or "Shift+$" or just "$"
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if (modif === 'shift+') {
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possible[jQuery.hotkeys.shiftNums[character]] = true;
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}
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}
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for (var i = 0, l = keys.length; i < l; i++) {
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if (possible[keys[i]]) {
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return origHandler.apply(this, arguments);
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}
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}
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};
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}
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jQuery.each(['keydown', 'keyup', 'keypress'], function () {
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jQuery.event.special[this] = { add: keyHandler };
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});
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}
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export default initHotKeyPluggin;
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