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204 行
4.9 KiB
204 行
4.9 KiB
/*jslint browser: true*/
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/*jslint jquery: true*/
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/*
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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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* https://github.com/tzuryby/jquery.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(jQuery) {
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jQuery.hotkeys = {
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version: "0.2.0",
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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: "return",
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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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59: ";",
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61: "=",
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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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173: "-",
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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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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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// excludes: button, checkbox, file, hidden, image, password, radio, reset, search, submit, url
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textAcceptingInputTypes: [
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"text", "password", "number", "email", "url", "range", "date", "month", "week", "time", "datetime",
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"datetime-local", "search", "color", "tel"],
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// default input types not to bind to unless bound directly
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textInputTypes: /textarea|input|select/i,
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options: {
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filterInputAcceptingElements: true,
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filterTextInputs: true,
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filterContentEditable: true
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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 = {
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keys: handleObj.data
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};
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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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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 (this !== event.target &&
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(jQuery.hotkeys.options.filterInputAcceptingElements &&
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jQuery.hotkeys.textInputTypes.test(event.target.nodeName) ||
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(jQuery.hotkeys.options.filterContentEditable && jQuery(event.target).attr('contenteditable')) ||
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(jQuery.hotkeys.options.filterTextInputs &&
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jQuery.inArray(event.target.type, jQuery.hotkeys.textAcceptingInputTypes) > -1))) {
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return;
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}
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var special = event.type !== "keypress" && jQuery.hotkeys.specialKeys[event.which],
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character = String.fromCharCode(event.which).toLowerCase(),
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modif = "",
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possible = {};
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jQuery.each(["alt", "ctrl", "shift"], function(index, specialKey) {
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if (event[specialKey + 'Key'] && special !== specialKey) {
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modif += specialKey + '+';
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}
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});
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// metaKey is triggered off ctrlKey erronously
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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.metaKey && special !== "meta" && modif.indexOf("alt+ctrl+shift+") > -1) {
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modif = modif.replace("alt+ctrl+shift+", "hyper+");
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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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else {
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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] = {
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add: keyHandler
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};
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});
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})(jQuery || this.jQuery || window.jQuery);
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