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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/
- */
- (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", 191: "/", 224: "meta"
- },
- shiftNums: {
- "`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&",
- "8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<",
- ".": ">", "/": "?", "\\": "|"
- }
- };
- function keyHandler( handleObj ) {
- // Only care when a possible input has been specified
- if ( typeof handleObj.data !== "string" ) {
- return;
- }
- var origHandler = handleObj.handler,
- keys = handleObj.data.toLowerCase().split(" ");
- handleObj.handler = function( event ) {
- // Don't fire in text-accepting inputs that we didn't directly bind to
- if ( this !== event.target && (/textarea|select/i.test( event.target.nodeName ) ||
- event.target.type === "text") ) {
- return;
- }
- // Keypress represents characters, not special keys
- var special = event.type !== "keypress" && jQuery.hotkeys.specialKeys[ event.which ],
- character = String.fromCharCode( event.which ).toLowerCase(),
- key, modif = "", possible = {};
- // check combinations (alt|ctrl|shift+anything)
- if ( event.altKey && special !== "alt" ) {
- modif += "alt+";
- }
- if ( event.ctrlKey && special !== "ctrl" ) {
- modif += "ctrl+";
- }
- // TODO: Need to make sure this works consistently across platforms
- if ( event.metaKey && !event.ctrlKey && special !== "meta" ) {
- modif += "meta+";
- }
- if ( event.shiftKey && special !== "shift" ) {
- modif += "shift+";
- }
- if ( special ) {
- possible[ modif + special ] = true;
- } else {
- possible[ modif + character ] = true;
- possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true;
- // "$" 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 );
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