app/assets/javascripts/jquery.ui.widget.js
/*!
* jQuery UI Widget @VERSION
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*/
//>>label: Widget
//>>group: UI Core
//>>description: Provides a factory for creating stateful widgets with a common API.
//>>docs: http://api.jqueryui.com/jQuery.widget/
//>>demos: http://jqueryui.com/widget/
( function( factory ) {
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
define( [ "jquery" ], factory );
} else {
// Browser globals
factory( jQuery );
}
}( function( $ ) {
var widget_uuid = 0,
widget_slice = Array.prototype.slice;
$.cleanData = ( function( orig ) {
return function( elems ) {
var events, elem, i;
for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) {
try {
// Only trigger remove when necessary to save time
events = $._data( elem, "events" );
if ( events && events.remove ) {
$( elem ).triggerHandler( "remove" );
}
// http://bugs.jquery.com/ticket/8235
} catch ( e ) {}
}
orig( elems );
};
} )( $.cleanData );
$.widget = function( name, base, prototype ) {
var fullName, existingConstructor, constructor, basePrototype,
// proxiedPrototype allows the provided prototype to remain unmodified
// so that it can be used as a mixin for multiple widgets (#8876)
proxiedPrototype = {},
namespace = name.split( "." )[ 0 ];
name = name.split( "." )[ 1 ];
fullName = namespace + "-" + name;
if ( !prototype ) {
prototype = base;
base = $.Widget;
}
// create selector for plugin
$.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
return !!$.data( elem, fullName );
};
$[ namespace ] = $[ namespace ] || {};
existingConstructor = $[ namespace ][ name ];
constructor = $[ namespace ][ name ] = function( options, element ) {
// allow instantiation without "new" keyword
if ( !this._createWidget ) {
return new constructor( options, element );
}
// allow instantiation without initializing for simple inheritance
// must use "new" keyword (the code above always passes args)
if ( arguments.length ) {
this._createWidget( options, element );
}
};
// extend with the existing constructor to carry over any static properties
$.extend( constructor, existingConstructor, {
version: prototype.version,
// copy the object used to create the prototype in case we need to
// redefine the widget later
_proto: $.extend( {}, prototype ),
// track widgets that inherit from this widget in case this widget is
// redefined after a widget inherits from it
_childConstructors: []
} );
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
basePrototype.options = $.widget.extend( {}, basePrototype.options );
$.each( prototype, function( prop, value ) {
if ( !$.isFunction( value ) ) {
proxiedPrototype[ prop ] = value;
return;
}
proxiedPrototype[ prop ] = ( function() {
var _super = function() {
return base.prototype[ prop ].apply( this, arguments );
},
_superApply = function( args ) {
return base.prototype[ prop ].apply( this, args );
};
return function() {
var __super = this._super,
__superApply = this._superApply,
returnValue;
this._super = _super;
this._superApply = _superApply;
returnValue = value.apply( this, arguments );
this._super = __super;
this._superApply = __superApply;
return returnValue;
};
} )();
} );
constructor.prototype = $.widget.extend( basePrototype, {
// TODO: remove support for widgetEventPrefix
// always use the name + a colon as the prefix, e.g., draggable:start
// don't prefix for widgets that aren't DOM-based
widgetEventPrefix: existingConstructor ? ( basePrototype.widgetEventPrefix || name ) : name
}, proxiedPrototype, {
constructor: constructor,
namespace: namespace,
widgetName: name,
widgetFullName: fullName
} );
// If this widget is being redefined then we need to find all widgets that
// are inheriting from it and redefine all of them so that they inherit from
// the new version of this widget. We're essentially trying to replace one
// level in the prototype chain.
if ( existingConstructor ) {
$.each( existingConstructor._childConstructors, function( i, child ) {
var childPrototype = child.prototype;
// redefine the child widget using the same prototype that was
// originally used, but inherit from the new version of the base
$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, child._proto );
} );
// remove the list of existing child constructors from the old constructor
// so the old child constructors can be garbage collected
delete existingConstructor._childConstructors;
} else {
base._childConstructors.push( constructor );
}
$.widget.bridge( name, constructor );
return constructor;
};
$.widget.extend = function( target ) {
var input = widget_slice.call( arguments, 1 ),
inputIndex = 0,
inputLength = input.length,
key,
value;
for ( ; inputIndex < inputLength; inputIndex++ ) {
for ( key in input[ inputIndex ] ) {
value = input[ inputIndex ][ key ];
if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
// Clone objects
if ( $.isPlainObject( value ) ) {
target[ key ] = $.isPlainObject( target[ key ] ) ?
$.widget.extend( {}, target[ key ], value ) :
// Don't extend strings, arrays, etc. with objects
$.widget.extend( {}, value );
// Copy everything else by reference
} else {
target[ key ] = value;
}
}
}
}
return target;
};
$.widget.bridge = function( name, object ) {
var fullName = object.prototype.widgetFullName || name;
$.fn[ name ] = function( options ) {
var isMethodCall = typeof options === "string",
args = widget_slice.call( arguments, 1 ),
returnValue = this;
if ( isMethodCall ) {
this.each( function() {
var methodValue,
instance = $.data( this, fullName );
if ( options === "instance" ) {
returnValue = instance;
return false;
}
if ( !instance ) {
return $.error( "cannot call methods on " + name + " prior to initialization; " +
"attempted to call method '" + options + "'" );
}
if ( !$.isFunction( instance[ options ] ) || options.charAt( 0 ) === "_" ) {
return $.error( "no such method '" + options + "' for " + name + " widget instance" );
}
methodValue = instance[ options ].apply( instance, args );
if ( methodValue !== instance && methodValue !== undefined ) {
returnValue = methodValue && methodValue.jquery ?
returnValue.pushStack( methodValue.get() ) :
methodValue;
return false;
}
} );
} else {
// Allow multiple hashes to be passed on init
if ( args.length ) {
options = $.widget.extend.apply( null, [ options ].concat( args ) );
}
this.each( function() {
var instance = $.data( this, fullName );
if ( instance ) {
instance.option( options || {} );
if ( instance._init ) {
instance._init();
}
} else {
$.data( this, fullName, new object( options, this ) );
}
} );
}
return returnValue;
};
};
$.Widget = function( /* options, element */ ) {};
$.Widget._childConstructors = [];
$.Widget.prototype = {
widgetName: "widget",
widgetEventPrefix: "",
defaultElement: "<div>",
options: {
classes: {},
disabled: false,
// callbacks
create: null
},
_createWidget: function( options, element ) {
element = $( element || this.defaultElement || this )[ 0 ];
this.element = $( element );
this.uuid = widget_uuid++;
this.eventNamespace = "." + this.widgetName + this.uuid;
this.bindings = $();
this.hoverable = $();
this.focusable = $();
this.classesElementLookup = {};
if ( element !== this ) {
$.data( element, this.widgetFullName, this );
this._on( true, this.element, {
remove: function( event ) {
if ( event.target === element ) {
this.destroy();
}
}
} );
this.document = $( element.style ?
// element within the document
element.ownerDocument :
// element is window or document
element.document || element );
this.window = $( this.document[ 0 ].defaultView || this.document[ 0 ].parentWindow );
}
this.options = $.widget.extend( {},
this.options,
this._getCreateOptions(),
options );
this._create();
this._trigger( "create", null, this._getCreateEventData() );
this._init();
},
_getCreateOptions: $.noop,
_getCreateEventData: $.noop,
_create: $.noop,
_init: $.noop,
destroy: function() {
var that = this;
this._destroy();
$.each( this.classesElementLookup, function( key, value ) {
that._removeClass( value, key );
} );
// we can probably remove the unbind calls in 2.0
// all event bindings should go through this._on()
this.element
.unbind( this.eventNamespace )
.removeData( this.widgetFullName );
this.widget()
.unbind( this.eventNamespace )
.removeAttr( "aria-disabled" );
// clean up events and states
this.bindings.unbind( this.eventNamespace );
},
_destroy: $.noop,
widget: function() {
return this.element;
},
option: function( key, value ) {
var options = key,
parts,
curOption,
i;
if ( arguments.length === 0 ) {
// don't return a reference to the internal hash
return $.widget.extend( {}, this.options );
}
if ( typeof key === "string" ) {
// handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
options = {};
parts = key.split( "." );
key = parts.shift();
if ( parts.length ) {
curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
for ( i = 0; i < parts.length - 1; i++ ) {
curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
curOption = curOption[ parts[ i ] ];
}
key = parts.pop();
if ( arguments.length === 1 ) {
return curOption[ key ] === undefined ? null : curOption[ key ];
}
curOption[ key ] = value;
} else {
if ( arguments.length === 1 ) {
return this.options[ key ] === undefined ? null : this.options[ key ];
}
options[ key ] = value;
}
}
this._setOptions( options );
return this;
},
_setOptions: function( options ) {
var key;
for ( key in options ) {
this._setOption( key, options[ key ] );
}
return this;
},
_setOption: function( key, value ) {
if ( key === "classes" ) {
this._setOptionClasses( value );
}
this.options[ key ] = value;
if ( key === "disabled" ) {
this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null, !!value );
// If the widget is becoming disabled, then nothing is interactive
if ( value ) {
this._removeClass( this.hoverable, null, "ui-state-hover" );
this._removeClass( this.focusable, null, "ui-state-focus" );
}
}
return this;
},
_setOptionClasses: function( value ) {
var classKey, elements, currentElements;
for ( classKey in value ) {
currentElements = this.classesElementLookup[ classKey ];
if ( value[ classKey ] === this.options.classes[ classKey ] ||
!currentElements ||
!currentElements.length ) {
continue;
}
// We are doing this to create a new jQuery object because the _removeClass() call
// on the next line is going to destroy the reference to the current elements being
// tracked. We need to save a copy of this collection so that we can add the new classes
// below.
elements = $( currentElements.get() );
this._removeClass( currentElements, classKey );
// We don't use _addClass() here, because that uses this.options.classes
// for generating the string of classes. We want to use the value passed in from
// _setOption(), this is the new value of the classes option which was passed to
// _setOption(). We pass this value directly to _classes().
elements.addClass( this._classes( {
element: elements,
keys: classKey,
classes: value,
add: true
} ) );
}
},
enable: function() {
return this._setOptions( { disabled: false } );
},
disable: function() {
return this._setOptions( { disabled: true } );
},
_classes: function( options ) {
var full = [],
that = this;
options = $.extend( {
element: this.element,
classes: this.options.classes || {}
}, options );
function processClassString( classes, checkOption ) {
var current, i;
for ( i = 0; i < classes.length; i++ ) {
current = that.classesElementLookup[ classes[ i ] ] || $();
if ( options.add ) {
current = $( $.unique( current.get().concat( options.element.get() ) ) );
} else {
current = $( current.not( options.element ).get() );
}
that.classesElementLookup[ classes[ i ] ] = current;
full.push( classes[ i ] );
if ( checkOption && options.classes[ classes[ i ] ] ) {
full.push( options.classes[ classes[ i ] ] );
}
}
}
if ( options.keys ) {
processClassString( options.keys.match( /\S+/g ) || [], true );
}
if ( options.extra ) {
processClassString( options.extra.match( /\S+/g ) || [] );
}
return full.join( " " );
},
_removeClass: function( element, keys, extra ) {
return this._toggleClass( element, keys, extra, false );
},
_addClass: function( element, keys, extra ) {
return this._toggleClass( element, keys, extra, true );
},
_toggleClass: function( element, keys, extra, add ) {
add = ( typeof add === "boolean" ) ? add : extra;
var shift = ( typeof element === "string" || element === null ),
options = {
extra: shift ? keys : extra,
keys: shift ? element : keys,
element: shift ? this.element : element,
add: add
};
options.element.toggleClass( this._classes( options ), add );
return this;
},
_on: function( suppressDisabledCheck, element, handlers ) {
var delegateElement,
instance = this;
// no suppressDisabledCheck flag, shuffle arguments
if ( typeof suppressDisabledCheck !== "boolean" ) {
handlers = element;
element = suppressDisabledCheck;
suppressDisabledCheck = false;
}
// no element argument, shuffle and use this.element
if ( !handlers ) {
handlers = element;
element = this.element;
delegateElement = this.widget();
} else {
element = delegateElement = $( element );
this.bindings = this.bindings.add( element );
}
$.each( handlers, function( event, handler ) {
function handlerProxy() {
// allow widgets to customize the disabled handling
// - disabled as an array instead of boolean
// - disabled class as method for disabling individual parts
if ( !suppressDisabledCheck &&
( instance.options.disabled === true ||
$( this ).hasClass( "ui-state-disabled" ) ) ) {
return;
}
return ( typeof handler === "string" ? instance[ handler ] : handler )
.apply( instance, arguments );
}
// copy the guid so direct unbinding works
if ( typeof handler !== "string" ) {
handlerProxy.guid = handler.guid =
handler.guid || handlerProxy.guid || $.guid++;
}
var match = event.match( /^([\w:-]*)\s*(.*)$/ ),
eventName = match[ 1 ] + instance.eventNamespace,
selector = match[ 2 ];
if ( selector ) {
delegateElement.delegate( selector, eventName, handlerProxy );
} else {
element.bind( eventName, handlerProxy );
}
} );
},
_off: function( element, eventName ) {
eventName = ( eventName || "" ).split( " " ).join( this.eventNamespace + " " ) +
this.eventNamespace;
element.unbind( eventName ).undelegate( eventName );
// Clear the stack to avoid memory leaks (#10056)
this.bindings = $( this.bindings.not( element ).get() );
this.focusable = $( this.focusable.not( element ).get() );
this.hoverable = $( this.hoverable.not( element ).get() );
},
_delay: function( handler, delay ) {
function handlerProxy() {
return ( typeof handler === "string" ? instance[ handler ] : handler )
.apply( instance, arguments );
}
var instance = this;
return setTimeout( handlerProxy, delay || 0 );
},
_hoverable: function( element ) {
this.hoverable = this.hoverable.add( element );
this._on( element, {
mouseenter: function( event ) {
this._addClass( $( event.currentTarget ), null, "ui-state-hover" );
},
mouseleave: function( event ) {
this._removeClass( $( event.currentTarget ), null, "ui-state-hover" );
}
} );
},
_focusable: function( element ) {
this.focusable = this.focusable.add( element );
this._on( element, {
focusin: function( event ) {
this._addClass( $( event.currentTarget ), null, "ui-state-focus" );
},
focusout: function( event ) {
this._removeClass( $( event.currentTarget ), null, "ui-state-focus" );
}
} );
},
_trigger: function( type, event, data ) {
var prop, orig,
callback = this.options[ type ];
data = data || {};
event = $.Event( event );
event.type = ( type === this.widgetEventPrefix ?
type :
this.widgetEventPrefix + type ).toLowerCase();
// the original event may come from any element
// so we need to reset the target on the new event
event.target = this.element[ 0 ];
// copy original event properties over to the new event
orig = event.originalEvent;
if ( orig ) {
for ( prop in orig ) {
if ( !( prop in event ) ) {
event[ prop ] = orig[ prop ];
}
}
}
this.element.trigger( event, data );
return !( $.isFunction( callback ) &&
callback.apply( this.element[ 0 ], [ event ].concat( data ) ) === false ||
event.isDefaultPrevented() );
}
};
$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
if ( typeof options === "string" ) {
options = { effect: options };
}
var hasOptions,
effectName = !options ?
method :
options === true || typeof options === "number" ?
defaultEffect :
options.effect || defaultEffect;
options = options || {};
if ( typeof options === "number" ) {
options = { duration: options };
}
hasOptions = !$.isEmptyObject( options );
options.complete = callback;
if ( options.delay ) {
element.delay( options.delay );
}
if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
element[ method ]( options );
} else if ( effectName !== method && element[ effectName ] ) {
element[ effectName ]( options.duration, options.easing, callback );
} else {
element.queue( function( next ) {
$( this )[ method ]();
if ( callback ) {
callback.call( element[ 0 ] );
}
next();
} );
}
};
} );
return $.widget;
} ) );