| Tor Norbye | 3a2425a | 2013-11-04 10:16:08 -0800 | [diff] [blame^] | 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: "insert", 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", 117: "f6", 118: "f7", 119: "f8", |
| 25 | 120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "numlock", 145: "scroll", 191: "/", 224: "meta" |
| 26 | }, |
| 27 | |
| 28 | shiftNums: { |
| 29 | "`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&", |
| 30 | "8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<", |
| 31 | ".": ">", "/": "?", "\\": "|" |
| 32 | } |
| 33 | }; |
| 34 | |
| 35 | function keyHandler( handleObj ) { |
| 36 | // Only care when a possible input has been specified |
| 37 | if ( typeof handleObj.data !== "string" ) { |
| 38 | return; |
| 39 | } |
| 40 | |
| 41 | var origHandler = handleObj.handler, |
| 42 | keys = handleObj.data.toLowerCase().split(" "); |
| 43 | |
| 44 | handleObj.handler = function( event ) { |
| 45 | // Don't fire in text-accepting inputs that we didn't directly bind to |
| 46 | if ( this !== event.target && (/textarea|select/i.test( event.target.nodeName ) || |
| 47 | event.target.type === "text") ) { |
| 48 | return; |
| 49 | } |
| 50 | |
| 51 | // Keypress represents characters, not special keys |
| 52 | var special = event.type !== "keypress" && jQuery.hotkeys.specialKeys[ event.which ], |
| 53 | character = String.fromCharCode( event.which ).toLowerCase(), |
| 54 | key, modif = "", possible = {}; |
| 55 | |
| 56 | // check combinations (alt|ctrl|shift+anything) |
| 57 | if ( event.altKey && special !== "alt" ) { |
| 58 | modif += "alt+"; |
| 59 | } |
| 60 | |
| 61 | if ( event.ctrlKey && special !== "ctrl" ) { |
| 62 | modif += "ctrl+"; |
| 63 | } |
| 64 | |
| 65 | // TODO: Need to make sure this works consistently across platforms |
| 66 | if ( event.metaKey && !event.ctrlKey && special !== "meta" ) { |
| 67 | modif += "meta+"; |
| 68 | } |
| 69 | |
| 70 | if ( event.shiftKey && special !== "shift" ) { |
| 71 | modif += "shift+"; |
| 72 | } |
| 73 | |
| 74 | if ( special ) { |
| 75 | possible[ modif + special ] = true; |
| 76 | |
| 77 | } else { |
| 78 | possible[ modif + character ] = true; |
| 79 | possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true; |
| 80 | |
| 81 | // "$" can be triggered as "Shift+4" or "Shift+$" or just "$" |
| 82 | if ( modif === "shift+" ) { |
| 83 | possible[ jQuery.hotkeys.shiftNums[ character ] ] = 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, arguments ); |
| 90 | } |
| 91 | } |
| 92 | }; |
| 93 | } |
| 94 | |
| 95 | jQuery.each([ "keydown", "keyup", "keypress" ], function() { |
| 96 | jQuery.event.special[ this ] = { add: keyHandler }; |
| 97 | }); |
| 98 | |
| 99 | })( jQuery ); |