103 lines
3.4 KiB
JavaScript
103 lines
3.4 KiB
JavaScript
/*
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* jQuery Hotkeys Plugin
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* Copyright 2010, John Resig
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* Dual licensed under the MIT or GPL Version 2 licenses.
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*
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* Based upon the plugin by Tzury Bar Yochay:
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* http://github.com/tzuryby/hotkeys
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*
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* Original idea by:
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* Binny V A, http://www.openjs.com/scripts/events/keyboard_shortcuts/
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*/
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/*
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* One small change is: now keys are passed by object { keys: '...' }
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* Might be useful, when you want to pass some other data to your handler
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*/
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(function(jQuery){
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jQuery.hotkeys = {
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version: "0.8",
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specialKeys: {
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8: "backspace", 9: "tab", 10: "return", 13: "return", 16: "shift", 17: "ctrl", 18: "alt", 19: "pause",
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20: "capslock", 27: "esc", 32: "space", 33: "pageup", 34: "pagedown", 35: "end", 36: "home",
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37: "left", 38: "up", 39: "right", 40: "down", 45: "insert", 46: "del", 59: ";", 61: "=",
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96: "0", 97: "1", 98: "2", 99: "3", 100: "4", 101: "5", 102: "6", 103: "7",
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104: "8", 105: "9", 106: "*", 107: "+", 109: "-", 110: ".", 111 : "/",
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112: "f1", 113: "f2", 114: "f3", 115: "f4", 116: "f5", 117: "f6", 118: "f7", 119: "f8",
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120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "numlock", 145: "scroll", 173: "-", 186: ";", 187: "=",
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188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", 221: "]", 222: "'"
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},
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shiftNums: {
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"`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&",
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"8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<",
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".": ">", "/": "?", "\\": "|"
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}
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};
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function keyHandler( handleObj ) {
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if ( typeof handleObj.data === "string" ) {
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handleObj.data = { keys: handleObj.data };
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}
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// Only care when a possible input has been specified
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if ( !handleObj.data || !handleObj.data.keys || typeof handleObj.data.keys !== "string" ) {
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return;
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}
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var origHandler = handleObj.handler,
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keys = handleObj.data.keys.toLowerCase().split(" "),
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textAcceptingInputTypes = ["text", "password", "number", "email", "url", "range", "date", "month", "week",
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"time", "datetime", "datetime-local", "search", "color", "tel"];
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handleObj.handler = function( event ) {
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// Don't fire in text-accepting inputs that we didn't directly bind to
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if ( this !== event.target && (/textarea|select/i.test( event.target.nodeName ) ||
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jQuery.inArray(event.target.type, textAcceptingInputTypes) > -1 ) ) {
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return;
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}
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var special = jQuery.hotkeys.specialKeys[ event.keyCode ],
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character = String.fromCharCode( event.which ).toLowerCase(),
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modif = "", possible = {};
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jQuery.each([ "alt", "ctrl", "meta", "shift" ], function(index, specialKey) {
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if (event[specialKey + 'Key'] && special !== specialKey) {
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modif += specialKey + '+';
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}
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});
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modif = modif.replace('alt+ctrl+meta+shift', 'hyper');
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if ( special ) {
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possible[ modif + special ] = true;
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}
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if ( character ) {
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possible[ modif + character ] = true;
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possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true;
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// "$" can be triggered as "Shift+4" or "Shift+$" or just "$"
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if ( modif === "shift+" ) {
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possible[ jQuery.hotkeys.shiftNums[ character ] ] = true;
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}
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}
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for ( var i = 0, l = keys.length; i < l; i++ ) {
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if ( possible[ keys[i] ] ) {
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return origHandler.apply( this, arguments );
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}
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}
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};
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}
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jQuery.each([ "keydown", "keyup", "keypress" ], function() {
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jQuery.event.special[ this ] = { add: keyHandler };
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});
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})( this.jQuery );
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