diff jquery-ui/development-bundle/ui/jquery.ui.widget.js @ 0:b2e4605f20b2

beta version
author dwinter
date Thu, 30 Jun 2011 09:07:49 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jquery-ui/development-bundle/ui/jquery.ui.widget.js	Thu Jun 30 09:07:49 2011 +0200
@@ -0,0 +1,262 @@
+/*!
+ * jQuery UI Widget 1.8.11
+ *
+ * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * http://docs.jquery.com/UI/Widget
+ */
+(function( $, undefined ) {
+
+// jQuery 1.4+
+if ( $.cleanData ) {
+	var _cleanData = $.cleanData;
+	$.cleanData = function( elems ) {
+		for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
+			$( elem ).triggerHandler( "remove" );
+		}
+		_cleanData( elems );
+	};
+} else {
+	var _remove = $.fn.remove;
+	$.fn.remove = function( selector, keepData ) {
+		return this.each(function() {
+			if ( !keepData ) {
+				if ( !selector || $.filter( selector, [ this ] ).length ) {
+					$( "*", this ).add( [ this ] ).each(function() {
+						$( this ).triggerHandler( "remove" );
+					});
+				}
+			}
+			return _remove.call( $(this), selector, keepData );
+		});
+	};
+}
+
+$.widget = function( name, base, prototype ) {
+	var namespace = name.split( "." )[ 0 ],
+		fullName;
+	name = name.split( "." )[ 1 ];
+	fullName = namespace + "-" + name;
+
+	if ( !prototype ) {
+		prototype = base;
+		base = $.Widget;
+	}
+
+	// create selector for plugin
+	$.expr[ ":" ][ fullName ] = function( elem ) {
+		return !!$.data( elem, name );
+	};
+
+	$[ namespace ] = $[ namespace ] || {};
+	$[ namespace ][ name ] = function( options, element ) {
+		// allow instantiation without initializing for simple inheritance
+		if ( arguments.length ) {
+			this._createWidget( options, element );
+		}
+	};
+
+	var basePrototype = new base();
+	// we need to make the options hash a property directly on the new instance
+	// otherwise we'll modify the options hash on the prototype that we're
+	// inheriting from
+//	$.each( basePrototype, function( key, val ) {
+//		if ( $.isPlainObject(val) ) {
+//			basePrototype[ key ] = $.extend( {}, val );
+//		}
+//	});
+	basePrototype.options = $.extend( true, {}, basePrototype.options );
+	$[ namespace ][ name ].prototype = $.extend( true, basePrototype, {
+		namespace: namespace,
+		widgetName: name,
+		widgetEventPrefix: $[ namespace ][ name ].prototype.widgetEventPrefix || name,
+		widgetBaseClass: fullName
+	}, prototype );
+
+	$.widget.bridge( name, $[ namespace ][ name ] );
+};
+
+$.widget.bridge = function( name, object ) {
+	$.fn[ name ] = function( options ) {
+		var isMethodCall = typeof options === "string",
+			args = Array.prototype.slice.call( arguments, 1 ),
+			returnValue = this;
+
+		// allow multiple hashes to be passed on init
+		options = !isMethodCall && args.length ?
+			$.extend.apply( null, [ true, options ].concat(args) ) :
+			options;
+
+		// prevent calls to internal methods
+		if ( isMethodCall && options.charAt( 0 ) === "_" ) {
+			return returnValue;
+		}
+
+		if ( isMethodCall ) {
+			this.each(function() {
+				var instance = $.data( this, name ),
+					methodValue = instance && $.isFunction( instance[options] ) ?
+						instance[ options ].apply( instance, args ) :
+						instance;
+				// TODO: add this back in 1.9 and use $.error() (see #5972)
+//				if ( !instance ) {
+//					throw "cannot call methods on " + name + " prior to initialization; " +
+//						"attempted to call method '" + options + "'";
+//				}
+//				if ( !$.isFunction( instance[options] ) ) {
+//					throw "no such method '" + options + "' for " + name + " widget instance";
+//				}
+//				var methodValue = instance[ options ].apply( instance, args );
+				if ( methodValue !== instance && methodValue !== undefined ) {
+					returnValue = methodValue;
+					return false;
+				}
+			});
+		} else {
+			this.each(function() {
+				var instance = $.data( this, name );
+				if ( instance ) {
+					instance.option( options || {} )._init();
+				} else {
+					$.data( this, name, new object( options, this ) );
+				}
+			});
+		}
+
+		return returnValue;
+	};
+};
+
+$.Widget = function( options, element ) {
+	// allow instantiation without initializing for simple inheritance
+	if ( arguments.length ) {
+		this._createWidget( options, element );
+	}
+};
+
+$.Widget.prototype = {
+	widgetName: "widget",
+	widgetEventPrefix: "",
+	options: {
+		disabled: false
+	},
+	_createWidget: function( options, element ) {
+		// $.widget.bridge stores the plugin instance, but we do it anyway
+		// so that it's stored even before the _create function runs
+		$.data( element, this.widgetName, this );
+		this.element = $( element );
+		this.options = $.extend( true, {},
+			this.options,
+			this._getCreateOptions(),
+			options );
+
+		var self = this;
+		this.element.bind( "remove." + this.widgetName, function() {
+			self.destroy();
+		});
+
+		this._create();
+		this._trigger( "create" );
+		this._init();
+	},
+	_getCreateOptions: function() {
+		return $.metadata && $.metadata.get( this.element[0] )[ this.widgetName ];
+	},
+	_create: function() {},
+	_init: function() {},
+
+	destroy: function() {
+		this.element
+			.unbind( "." + this.widgetName )
+			.removeData( this.widgetName );
+		this.widget()
+			.unbind( "." + this.widgetName )
+			.removeAttr( "aria-disabled" )
+			.removeClass(
+				this.widgetBaseClass + "-disabled " +
+				"ui-state-disabled" );
+	},
+
+	widget: function() {
+		return this.element;
+	},
+
+	option: function( key, value ) {
+		var options = key;
+
+		if ( arguments.length === 0 ) {
+			// don't return a reference to the internal hash
+			return $.extend( {}, this.options );
+		}
+
+		if  (typeof key === "string" ) {
+			if ( value === undefined ) {
+				return this.options[ key ];
+			}
+			options = {};
+			options[ key ] = value;
+		}
+
+		this._setOptions( options );
+
+		return this;
+	},
+	_setOptions: function( options ) {
+		var self = this;
+		$.each( options, function( key, value ) {
+			self._setOption( key, value );
+		});
+
+		return this;
+	},
+	_setOption: function( key, value ) {
+		this.options[ key ] = value;
+
+		if ( key === "disabled" ) {
+			this.widget()
+				[ value ? "addClass" : "removeClass"](
+					this.widgetBaseClass + "-disabled" + " " +
+					"ui-state-disabled" )
+				.attr( "aria-disabled", value );
+		}
+
+		return this;
+	},
+
+	enable: function() {
+		return this._setOption( "disabled", false );
+	},
+	disable: function() {
+		return this._setOption( "disabled", true );
+	},
+
+	_trigger: function( type, event, data ) {
+		var callback = this.options[ type ];
+
+		event = $.Event( event );
+		event.type = ( type === this.widgetEventPrefix ?
+			type :
+			this.widgetEventPrefix + type ).toLowerCase();
+		data = data || {};
+
+		// copy original event properties over to the new event
+		// this would happen if we could call $.event.fix instead of $.Event
+		// but we don't have a way to force an event to be fixed multiple times
+		if ( event.originalEvent ) {
+			for ( var i = $.event.props.length, prop; i; ) {
+				prop = $.event.props[ --i ];
+				event[ prop ] = event.originalEvent[ prop ];
+			}
+		}
+
+		this.element.trigger( event, data );
+
+		return !( $.isFunction(callback) &&
+			callback.call( this.element[0], event, data ) === false ||
+			event.isDefaultPrevented() );
+	}
+};
+
+})( jQuery );