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1 /* | |
2 * jQuery Hotkeys Plugin | |
3 * Copyright 2010, John Resig | |
4 * Dual licensed under the MIT or GPL Version 2 licenses. | |
5 * | |
6 * Based upon the plugin by Tzury Bar Yochay: | |
7 * http://github.com/tzuryby/hotkeys | |
8 * | |
9 * Original idea by: | |
10 * Binny V A, http://www.openjs.com/scripts/events/keyboard_shortcuts/ | |
11 */ | |
12 | |
13 (function(jQuery){ | |
14 | |
15 jQuery.hotkeys = { | |
16 version: "0.8", | |
17 | |
18 specialKeys: { | |
19 8: "backspace", 9: "tab", 13: "return", 16: "shift", 17:
"ctrl", 18: "alt", 19: "pause", | |
20 20: "capslock", 27: "esc", 32: "space", 33: "pageup", 34
: "pagedown", 35: "end", 36: "home", | |
21 37: "left", 38: "up", 39: "right", 40: "down", 45: "inse
rt", 46: "del", | |
22 96: "0", 97: "1", 98: "2", 99: "3", 100: "4", 101: "5",
102: "6", 103: "7", | |
23 104: "8", 105: "9", 106: "*", 107: "+", 109: "-", 110: "
.", 111 : "/", | |
24 112: "f1", 113: "f2", 114: "f3", 115: "f4", 116: "f5", 1
17: "f6", 118: "f7", 119: "f8", | |
25 120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "num
lock", 145: "scroll", 191: "/", 224: "meta" | |
26 }, | |
27 | |
28 shiftNums: { | |
29 "`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "
%", "6": "^", "7": "&", | |
30 "8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": "
: ", "'": "\"", ",": "<", | |
31 ".": ">", "/": "?", "\\": "|" | |
32 } | |
33 }; | |
34 | |
35 function keyHandler( handleObj ) { | |
36 // Only care when a possible input has been specified | |
37 if ( typeof handleObj.data !== "string" ) { | |
38 return; | |
39 } | |
40 | |
41 var origHandler = handleObj.handler, | |
42 keys = handleObj.data.toLowerCase().split(" "); | |
43 | |
44 handleObj.handler = function( event ) { | |
45 // Don't fire in text-accepting inputs that we didn't di
rectly bind to | |
46 if ( this !== event.target && (/textarea|select/i.test(
event.target.nodeName ) || | |
47 event.target.type === "text") ) { | |
48 return; | |
49 } | |
50 | |
51 // Keypress represents characters, not special keys | |
52 var special = event.type !== "keypress" && jQuery.hotkey
s.specialKeys[ event.which ], | |
53 character = String.fromCharCode( event.which ).t
oLowerCase(), | |
54 key, modif = "", possible = {}; | |
55 | |
56 // check combinations (alt|ctrl|shift+anything) | |
57 if ( event.altKey && special !== "alt" ) { | |
58 modif += "alt+"; | |
59 } | |
60 | |
61 if ( event.ctrlKey && special !== "ctrl" ) { | |
62 modif += "ctrl+"; | |
63 } | |
64 | |
65 // TODO: Need to make sure this works consistently acros
s platforms | |
66 if ( event.metaKey && !event.ctrlKey && special !== "met
a" ) { | |
67 modif += "meta+"; | |
68 } | |
69 | |
70 if ( event.shiftKey && special !== "shift" ) { | |
71 modif += "shift+"; | |
72 } | |
73 | |
74 if ( special ) { | |
75 possible[ modif + special ] = true; | |
76 | |
77 } else { | |
78 possible[ modif + character ] = true; | |
79 possible[ modif + jQuery.hotkeys.shiftNums[ char
acter ] ] = true; | |
80 | |
81 // "$" can be triggered as "Shift+4" or "Shift+$
" or just "$" | |
82 if ( modif === "shift+" ) { | |
83 possible[ jQuery.hotkeys.shiftNums[ char
acter ] ] = true; | |
84 } | |
85 } | |
86 | |
87 for ( var i = 0, l = keys.length; i < l; i++ ) { | |
88 if ( possible[ keys[i] ] ) { | |
89 return origHandler.apply( this, argument
s ); | |
90 } | |
91 } | |
92 }; | |
93 } | |
94 | |
95 jQuery.each([ "keydown", "keyup", "keypress" ], function() { | |
96 jQuery.event.special[ this ] = { add: keyHandler }; | |
97 }); | |
98 | |
99 })( jQuery ); | |
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