github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/public/js/wysiwyg/jquery.hotkeys.js (about)

     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  /*
    14   * One small change is: now keys are passed by object { keys: '...' }
    15   * Might be useful, when you want to pass some other data to your handler
    16   */
    17  
    18  (function(jQuery){
    19  	
    20  	jQuery.hotkeys = {
    21  		version: "0.8",
    22  
    23  		specialKeys: {
    24  			8: "backspace", 9: "tab", 10: "return", 13: "return", 16: "shift", 17: "ctrl", 18: "alt", 19: "pause",
    25  			20: "capslock", 27: "esc", 32: "space", 33: "pageup", 34: "pagedown", 35: "end", 36: "home",
    26  			37: "left", 38: "up", 39: "right", 40: "down", 45: "insert", 46: "del", 
    27  			96: "0", 97: "1", 98: "2", 99: "3", 100: "4", 101: "5", 102: "6", 103: "7",
    28  			104: "8", 105: "9", 106: "*", 107: "+", 109: "-", 110: ".", 111 : "/", 
    29  			112: "f1", 113: "f2", 114: "f3", 115: "f4", 116: "f5", 117: "f6", 118: "f7", 119: "f8", 
    30  			120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "numlock", 145: "scroll", 186: ";", 191: "/",
    31  			220: "\\", 222: "'", 224: "meta"
    32  		},
    33  	
    34  		shiftNums: {
    35  			"`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&", 
    36  			"8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<", 
    37  			".": ">",  "/": "?",  "\\": "|"
    38  		}
    39  	};
    40  
    41  	function keyHandler( handleObj ) {
    42  		if ( typeof handleObj.data === "string" ) {
    43  			handleObj.data = { keys: handleObj.data };
    44  		}
    45  
    46  		// Only care when a possible input has been specified
    47  		if ( !handleObj.data || !handleObj.data.keys || typeof handleObj.data.keys !== "string" ) {
    48  			return;
    49  		}
    50  
    51  		var origHandler = handleObj.handler,
    52  			keys = handleObj.data.keys.toLowerCase().split(" "),
    53  			textAcceptingInputTypes = ["text", "password", "number", "email", "url", "range", "date", "month", "week", "time", "datetime", "datetime-local", "search", "color", "tel"];
    54  	
    55  		handleObj.handler = function( event ) {
    56  			// Don't fire in text-accepting inputs that we didn't directly bind to
    57  			if ( this !== event.target && (/textarea|select/i.test( event.target.nodeName ) ||
    58  				jQuery.inArray(event.target.type, textAcceptingInputTypes) > -1 ) ) {
    59  				return;
    60  			}
    61  
    62  			var special = jQuery.hotkeys.specialKeys[ event.keyCode ],
    63  				// character codes are available only in keypress
    64  				character = event.type === "keypress" && String.fromCharCode( event.which ).toLowerCase(),
    65  				modif = "", possible = {};
    66  
    67  			// check combinations (alt|ctrl|shift+anything)
    68  			if ( event.altKey && special !== "alt" ) {
    69  				modif += "alt+";
    70  			}
    71  
    72  			if ( event.ctrlKey && special !== "ctrl" ) {
    73  				modif += "ctrl+";
    74  			}
    75  			
    76  			// TODO: Need to make sure this works consistently across platforms
    77  			if ( event.metaKey && !event.ctrlKey && special !== "meta" ) {
    78  				modif += "meta+";
    79  			}
    80  
    81  			if ( event.shiftKey && special !== "shift" ) {
    82  				modif += "shift+";
    83  			}
    84  
    85  			if ( special ) {
    86  				possible[ modif + special ] = true;
    87  			}
    88  
    89  			if ( character ) {
    90  				possible[ modif + character ] = true;
    91  				possible[ modif + jQuery.hotkeys.shiftNums[ character ] ] = true;
    92  
    93  				// "$" can be triggered as "Shift+4" or "Shift+$" or just "$"
    94  				if ( modif === "shift+" ) {
    95  					possible[ jQuery.hotkeys.shiftNums[ character ] ] = true;
    96  				}
    97  			}
    98  
    99  			for ( var i = 0, l = keys.length; i < l; i++ ) {
   100  				if ( possible[ keys[i] ] ) {
   101  					return origHandler.apply( this, arguments );
   102  				}
   103  			}
   104  		};
   105  	}
   106  
   107  	jQuery.each([ "keydown", "keyup", "keypress" ], function() {
   108  		jQuery.event.special[ this ] = { add: keyHandler };
   109  	});
   110  
   111  })( this.jQuery );