"use strict";
/*
* jQuery Hotkeys Plugin
* Copyright, John Resig
* Dual licensed under the MIT or GPL Version 2 licenses.
*
* Based upon the plugin by Tzury Bar Yochay:
* http://github.com/tzuryby/hotkeys
*
* Original idea by:
* Binny V A, http://www.openjs.com/scripts/events/keyboard_shortcuts/
*/
(function (jQuery) {
jQuery.hotkeys = {
version: "0.8+",
specialKeys: {
8: "backspace", 9: "tab", 13: "return", 16: "shift", 17: "ctrl", 18: "alt", 19: "pause",
20: "capslock", 27: "esc", 32: "space", 33: "pageup", 34: "pagedown", 35: "end", 36: "home",
37: "left", 38: "up", 39: "right", 40: "down", 45: "insert", 46: "del",
96: "0", 97: "1", 98: "2", 99: "3", 100: "4", 101: "5", 102: "6", 103: "7",
104: "8", 105: "9", 106: "*", 107: "+", 109: "-", 110: ".", 111: "/",
112: "f1", 113: "f2", 114: "f3", 115: "f4", 116: "f5", 117: "f6", 118: "f7", 119: "f8",
120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "numlock", 145: "scroll", 188: ",", 190: ".",
191: "/", 224: "meta"
},
shiftNums: {
"`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&",
"8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<",
".": ">", "/": "?", "\\": "|"
}
};
function keyHandler(handleObj) {
var origHandler = handleObj.handler,
//use namespace as keys so it works with event delegation as well
//will also allow removing listeners of a specific key combination
//and support data objects
keys = (handleObj.namespace || "").toLowerCase().split(" ");
keys = jQuery.map(keys, function (key) {
return key.split(".");
});
//no need to modify handler if no keys specified
//Added keys[0].substring(0, 12) to work with jQuery ui 1.9.0
//Added accordion, tabs and menu, then jquery ui can use keys.
if (keys.length === 1 && (keys[0] === "" ||
keys[0].substring(0, 12) === "autocomplete" ||
keys[0].substring(0, 9) === "accordion" ||
keys[0].substring(0, 4) === "tabs" ||
keys[0].substring(0, 4) === "menu")) {
return;
}
handleObj.handler = function (event) {
// Don't fire in text-accepting inputs that we didn't directly bind to
// important to note that $.fn.prop is only available on jquery 1.6+
if (this !== event.target && (/textarea|select/i.test(event.target.nodeName) ||
event.target.type === "text" || $(event.target).prop('contenteditable') == 'true')) {
return;
}
// Keypress represents characters, not special keys
var special = event.type !== "keypress" && jQuery.hotkeys.specialKeys[ event.which ],
character = String.fromCharCode(event.which).toLowerCase(),
key, modif = "", possible = {};
// check combinations (alt|ctrl|shift+anything)
if (event.altKey && special !== "alt") {
modif += "alt_";
}
if (event.ctrlKey && special !== "ctrl") {
modif += "ctrl_";
}
// TODO: Need to make sure this works consistently across platforms
if (event.metaKey && !event.ctrlKey && special !== "meta") {
modif += "meta_";
}
if (event.shiftKey && special !== "shift") {
modif += "shift_";
}
if (special) {
possible[ modif + special ] = true;
} else {
possible[ modif + character ] = true;
possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true;
// "$" can be triggered as "Shift+4" or "Shift+$" or just "$"
if (modif === "shift_") {
possible[ jQuery.hotkeys.shiftNums[ character ] ] = true;
}
}
for (var i = 0, l = keys.length; i < l; i++) {
if (possible[ keys[i] ]) {
return origHandler.apply(this, arguments);
}
}
};
}
jQuery.each(["keydown", "keyup", "keypress"], function () {
jQuery.event.special[ this ] = {add: keyHandler};
});
})(jQuery);