apps/fileupload/static/fileupload/js/jquery.ui.widget.js

   1 /*
   2  * jQuery UI Widget 1.8.18+amd
   3  * https://github.com/blueimp/jQuery-File-Upload
   4  *
   5  * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
   6  * Dual licensed under the MIT or GPL Version 2 licenses.
   7  * http://jquery.org/license
   8  *
   9  * http://docs.jquery.com/UI/Widget
  10  */
  11
  12 (function (factory) {
  13     if (typeof define === "function" && define.amd) {
  14         // Register as an anonymous AMD module:
  15         define(["jquery"], factory);
  16     } else {
  17         // Browser globals:
  18         factory(jQuery);
  19     }
  20 }(function( $, undefined ) {
  21
  22 // jQuery 1.4+
  23 if ( $.cleanData ) {
  24         var _cleanData = $.cleanData;
  25         $.cleanData = function( elems ) {
  26                 for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
  27                         try {
  28                                 $( elem ).triggerHandler( "remove" );
  29                         // http://bugs.jquery.com/ticket/8235
  30                         } catch( e ) {}
  31                 }
  32                 _cleanData( elems );
  33         };
  34 } else {
  35         var _remove = $.fn.remove;
  36         $.fn.remove = function( selector, keepData ) {
  37                 return this.each(function() {
  38                         if ( !keepData ) {
  39                                 if ( !selector || $.filter( selector, [ this ] ).length ) {
  40                                         $( "*", this ).add( [ this ] ).each(function() {
  41                                                 try {
  42                                                         $( this ).triggerHandler( "remove" );
  43                                                 // http://bugs.jquery.com/ticket/8235
  44                                                 } catch( e ) {}
  45                                         });
  46                                 }
  47                         }
  48                         return _remove.call( $(this), selector, keepData );
  49                 });
  50         };
  51 }
  52
  53 $.widget = function( name, base, prototype ) {
  54         var namespace = name.split( "." )[ 0 ],
  55                 fullName;
  56         name = name.split( "." )[ 1 ];
  57         fullName = namespace + "-" + name;
  58
  59         if ( !prototype ) {
  60                 prototype = base;
  61                 base = $.Widget;
  62         }
  63
  64         // create selector for plugin
  65         $.expr[ ":" ][ fullName ] = function( elem ) {
  66                 return !!$.data( elem, name );
  67         };
  68
  69         $[ namespace ] = $[ namespace ] || {};
  70         $[ namespace ][ name ] = function( options, element ) {
  71                 // allow instantiation without initializing for simple inheritance
  72                 if ( arguments.length ) {
  73                         this._createWidget( options, element );
  74                 }
  75         };
  76
  77         var basePrototype = new base();
  78         // we need to make the options hash a property directly on the new instance
  79         // otherwise we'll modify the options hash on the prototype that we're
  80         // inheriting from
  81 //      $.each( basePrototype, function( key, val ) {
  82 //              if ( $.isPlainObject(val) ) {
  83 //                      basePrototype[ key ] = $.extend( {}, val );
  84 //              }
  85 //      });
  86         basePrototype.options = $.extend( true, {}, basePrototype.options );
  87         $[ namespace ][ name ].prototype = $.extend( true, basePrototype, {
  88                 namespace: namespace,
  89                 widgetName: name,
  90                 widgetEventPrefix: $[ namespace ][ name ].prototype.widgetEventPrefix || name,
  91                 widgetBaseClass: fullName
  92         }, prototype );
  93
  94         $.widget.bridge( name, $[ namespace ][ name ] );
  95 };
  96
  97 $.widget.bridge = function( name, object ) {
  98         $.fn[ name ] = function( options ) {
  99                 var isMethodCall = typeof options === "string",
 100                         args = Array.prototype.slice.call( arguments, 1 ),
 101                         returnValue = this;
 102
 103                 // allow multiple hashes to be passed on init
 104                 options = !isMethodCall && args.length ?
 105                         $.extend.apply( null, [ true, options ].concat(args) ) :
 106                         options;
 107
 108                 // prevent calls to internal methods
 109                 if ( isMethodCall && options.charAt( 0 ) === "_" ) {
 110                         return returnValue;
 111                 }
 112
 113                 if ( isMethodCall ) {
 114                         this.each(function() {
 115                                 var instance = $.data( this, name ),
 116                                         methodValue = instance && $.isFunction( instance[options] ) ?
 117                                                 instance[ options ].apply( instance, args ) :
 118                                                 instance;
 119                                 // TODO: add this back in 1.9 and use $.error() (see #5972)
 120 //                              if ( !instance ) {
 121 //                                      throw "cannot call methods on " + name + " prior to initialization; " +
 122 //                                              "attempted to call method '" + options + "'";
 123 //                              }
 124 //                              if ( !$.isFunction( instance[options] ) ) {
 125 //                                      throw "no such method '" + options + "' for " + name + " widget instance";
 126 //                              }
 127 //                              var methodValue = instance[ options ].apply( instance, args );
 128                                 if ( methodValue !== instance && methodValue !== undefined ) {
 129                                         returnValue = methodValue;
 130                                         return false;
 131                                 }
 132                         });
 133                 } else {
 134                         this.each(function() {
 135                                 var instance = $.data( this, name );
 136                                 if ( instance ) {
 137                                         instance.option( options || {} )._init();
 138                                 } else {
 139                                         $.data( this, name, new object( options, this ) );
 140                                 }
 141                         });
 142                 }
 143
 144                 return returnValue;
 145         };
 146 };
 147
 148 $.Widget = function( options, element ) {
 149         // allow instantiation without initializing for simple inheritance
 150         if ( arguments.length ) {
 151                 this._createWidget( options, element );
 152         }
 153 };
 154
 155 $.Widget.prototype = {
 156         widgetName: "widget",
 157         widgetEventPrefix: "",
 158         options: {
 159                 disabled: false
 160         },
 161         _createWidget: function( options, element ) {
 162                 // $.widget.bridge stores the plugin instance, but we do it anyway
 163                 // so that it's stored even before the _create function runs
 164                 $.data( element, this.widgetName, this );
 165                 this.element = $( element );
 166                 this.options = $.extend( true, {},
 167                         this.options,
 168                         this._getCreateOptions(),
 169                         options );
 170
 171                 var self = this;
 172                 this.element.bind( "remove." + this.widgetName, function() {
 173                         self.destroy();
 174                 });
 175
 176                 this._create();
 177                 this._trigger( "create" );
 178                 this._init();
 179         },
 180         _getCreateOptions: function() {
 181                 return $.metadata && $.metadata.get( this.element[0] )[ this.widgetName ];
 182         },
 183         _create: function() {},
 184         _init: function() {},
 185
 186         destroy: function() {
 187                 this.element
 188                         .unbind( "." + this.widgetName )
 189                         .removeData( this.widgetName );
 190                 this.widget()
 191                         .unbind( "." + this.widgetName )
 192                         .removeAttr( "aria-disabled" )
 193                         .removeClass(
 194                                 this.widgetBaseClass + "-disabled " +
 195                                 "ui-state-disabled" );
 196         },
 197
 198         widget: function() {
 199                 return this.element;
 200         },
 201
 202         option: function( key, value ) {
 203                 var options = key;
 204
 205                 if ( arguments.length === 0 ) {
 206                         // don't return a reference to the internal hash
 207                         return $.extend( {}, this.options );
 208                 }
 209
 210                 if  (typeof key === "string" ) {
 211                         if ( value === undefined ) {
 212                                 return this.options[ key ];
 213                         }
 214                         options = {};
 215                         options[ key ] = value;
 216                 }
 217
 218                 this._setOptions( options );
 219
 220                 return this;
 221         },
 222         _setOptions: function( options ) {
 223                 var self = this;
 224                 $.each( options, function( key, value ) {
 225                         self._setOption( key, value );
 226                 });
 227
 228                 return this;
 229         },
 230         _setOption: function( key, value ) {
 231                 this.options[ key ] = value;
 232
 233                 if ( key === "disabled" ) {
 234                         this.widget()
 235                                 [ value ? "addClass" : "removeClass"](
 236                                         this.widgetBaseClass + "-disabled" + " " +
 237                                         "ui-state-disabled" )
 238                                 .attr( "aria-disabled", value );
 239                 }
 240
 241                 return this;
 242         },
 243
 244         enable: function() {
 245                 return this._setOption( "disabled", false );
 246         },
 247         disable: function() {
 248                 return this._setOption( "disabled", true );
 249         },
 250
 251         _trigger: function( type, event, data ) {
 252                 var prop, orig,
 253                         callback = this.options[ type ];
 254
 255                 data = data || {};
 256                 event = $.Event( event );
 257                 event.type = ( type === this.widgetEventPrefix ?
 258                         type :
 259                         this.widgetEventPrefix + type ).toLowerCase();
 260                 // the original event may come from any element
 261                 // so we need to reset the target on the new event
 262                 event.target = this.element[ 0 ];
 263
 264                 // copy original event properties over to the new event
 265                 orig = event.originalEvent;
 266                 if ( orig ) {
 267                         for ( prop in orig ) {
 268                                 if ( !( prop in event ) ) {
 269                                         event[ prop ] = orig[ prop ];
 270                                 }
 271                         }
 272                 }
 273
 274                 this.element.trigger( event, data );
 275
 276                 return !( $.isFunction(callback) &&
 277                         callback.call( this.element[0], event, data ) === false ||
 278                         event.isDefaultPrevented() );
 279         }
 280 };
 281
 282 }));