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Gabriel Florit
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/* | |||
* jQuery Hotkeys Plugin | |||
* Copyright 2010, 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/ | |||
*/ | |||
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(function(jQuery){ | |||
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jQuery.hotkeys = { | |||
version: "0.8", | |||
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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" | |||
}, | |||
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shiftNums: { | |||
"`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&", | |||
"8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<", | |||
".": ">", "/": "?", "\\": "|" | |||
} | |||
}; | |||
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function keyHandler( handleObj ) { | |||
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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(" "); | |||
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//no need to modify handler if no keys specified | |||
if (!keys.length) { | |||
return; | |||
} | |||
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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" || $(event.target).prop('contenteditable') == 'true' )) { | |||
return; | |||
} | |||
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// Keypress represents characters, not special keys | |||
var special = event.type !== "keypress" && jQuery.hotkeys.specialKeys[ event.which ], | |||
character = String.fromCharCode( event.which ).toLowerCase(), | |||
key, modif = "", possible = {}; | |||
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// check combinations (alt|ctrl|shift+anything) | |||
if ( event.altKey && special !== "alt" ) { | |||
modif += "alt_"; | |||
} | |||
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if ( event.ctrlKey && special !== "ctrl" ) { | |||
modif += "ctrl_"; | |||
} | |||
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// TODO: Need to make sure this works consistently across platforms | |||
if ( event.metaKey && !event.ctrlKey && special !== "meta" ) { | |||
modif += "meta_"; | |||
} | |||
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if ( event.shiftKey && special !== "shift" ) { | |||
modif += "shift_"; | |||
} | |||
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if ( special ) { | |||
possible[ modif + special ] = true; | |||
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} else { | |||
possible[ modif + character ] = true; | |||
possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true; | |||
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// "$" can be triggered as "Shift+4" or "Shift+$" or just "$" | |||
if ( modif === "shift_" ) { | |||
possible[ jQuery.hotkeys.shiftNums[ character ] ] = true; | |||
} | |||
} | |||
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for ( var i = 0, l = keys.length; i < l; i++ ) { | |||
if ( possible[ keys[i] ] ) { | |||
return origHandler.apply( this, arguments ); | |||
} | |||
} | |||
}; | |||
} | |||
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jQuery.each([ "keydown", "keyup", "keypress" ], function() { | |||
jQuery.event.special[ this ] = { add: keyHandler }; | |||
}); | |||
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})( jQuery ); |