| 提交 | 用户 | 时间 | ||
| 58d006 | 1 | /* |
| A | 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", 188: ",", 190: ".", | |
| 26 | 191: "/", 224: "meta" | |
| 27 | }, | |
| 28 | ||
| 29 | shiftNums: { | |
| 30 | "`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&", | |
| 31 | "8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<", | |
| 32 | ".": ">", "/": "?", "\\": "|" | |
| 33 | } | |
| 34 | }; | |
| 35 | ||
| 36 | function keyHandler( handleObj ) { | |
| 37 | ||
| 38 | var origHandler = handleObj.handler, | |
| 39 | //use namespace as keys so it works with event delegation as well | |
| 40 | //will also allow removing listeners of a specific key combination | |
| 41 | //and support data objects | |
| 42 | keys = (handleObj.namespace || "").toLowerCase().split(" "); | |
| 43 | keys = jQuery.map(keys, function(key) { return key.split("."); }); | |
| 44 | ||
| 45 | //no need to modify handler if no keys specified | |
| 46 | //Added keys[0].substring(0, 12) to work with jQuery ui 1.9.0 | |
| 47 | //Added accordion, tabs and menu, then jquery ui can use keys. | |
| 48 | ||
| 49 | if (keys.length === 1 && (keys[0] === "" || | |
| 50 | keys[0].substring(0, 12) === "autocomplete" || | |
| 51 | keys[0].substring(0, 9) === "accordion" || | |
| 52 | keys[0].substring(0, 4) === "tabs" || | |
| 53 | keys[0].substring(0, 4) === "menu")) { | |
| 54 | return; | |
| 55 | } | |
| 56 | ||
| 57 | handleObj.handler = function( event ) { | |
| 58 | // Don't fire in text-accepting inputs that we didn't directly bind to | |
| 59 | // important to note that $.fn.prop is only available on jquery 1.6+ | |
| 60 | if ( this !== event.target && (/textarea|select/i.test( event.target.nodeName ) || | |
| 61 | event.target.type === "text" || $(event.target).prop('contenteditable') == 'true' )) { | |
| 62 | return; | |
| 63 | } | |
| 64 | ||
| 65 | // Keypress represents characters, not special keys | |
| 66 | var special = event.type !== "keypress" && jQuery.hotkeys.specialKeys[ event.which ], | |
| 67 | character = String.fromCharCode( event.which ).toLowerCase(), | |
| 68 | key, modif = "", possible = {}; | |
| 69 | ||
| 70 | // check combinations (alt|ctrl|shift+anything) | |
| 71 | if ( event.altKey && special !== "alt" ) { | |
| 72 | modif += "alt_"; | |
| 73 | } | |
| 74 | ||
| 75 | if ( event.ctrlKey && special !== "ctrl" ) { | |
| 76 | modif += "ctrl_"; | |
| 77 | } | |
| 78 | ||
| 79 | // TODO: Need to make sure this works consistently across platforms | |
| 80 | if ( event.metaKey && !event.ctrlKey && special !== "meta" ) { | |
| 81 | modif += "meta_"; | |
| 82 | } | |
| 83 | ||
| 84 | if ( event.shiftKey && special !== "shift" ) { | |
| 85 | modif += "shift_"; | |
| 86 | } | |
| 87 | ||
| 88 | if ( special ) { | |
| 89 | possible[ modif + special ] = true; | |
| 90 | ||
| 91 | } else { | |
| 92 | possible[ modif + character ] = true; | |
| 93 | possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true; | |
| 94 | ||
| 95 | // "$" can be triggered as "Shift+4" or "Shift+$" or just "$" | |
| 96 | if ( modif === "shift_" ) { | |
| 97 | possible[ jQuery.hotkeys.shiftNums[ character ] ] = true; | |
| 98 | } | |
| 99 | } | |
| 100 | ||
| 101 | for ( var i = 0, l = keys.length; i < l; i++ ) { | |
| 102 | if ( possible[ keys[i] ] ) { | |
| 103 | return origHandler.apply( this, arguments ); | |
| 104 | } | |
| 105 | } | |
| 106 | }; | |
| 107 | } | |
| 108 | ||
| 109 | jQuery.each([ "keydown", "keyup", "keypress" ], function() { | |
| 110 | jQuery.event.special[ this ] = { add: keyHandler }; | |
| 111 | }); | |
| 112 | ||
| 113 | })( jQuery ); | |
