FM / widgets

/usr/share/javascript/jquery-ui/ui/widgets/

/usr/share/javascript/jquery-ui/ui/widgets

Name	Size	Mode	Actions
accordion.js	16134	0644	edit dl rm
accordion.min.js	10324	0644	edit dl rm
autocomplete.js	17526	0644	edit dl rm
autocomplete.min.js	9907	0644	edit dl rm
button.js	11702	0644	edit dl rm
button.min.js	6736	0644	edit dl rm
checkboxradio.js	7499	0644	edit dl rm
checkboxradio.min.js	4542	0644	edit dl rm
controlgroup.js	8622	0644	edit dl rm
controlgroup.min.js	5219	0644	edit dl rm
datepicker.js	82518	0644	edit dl rm
datepicker.min.js	47707	0644	edit dl rm
dialog.js	23738	0644	edit dl rm
dialog.min.js	14832	0644	edit dl rm
draggable.js	35541	0644	edit dl rm
draggable.min.js	21342	0644	edit dl rm
droppable.js	12895	0644	edit dl rm
droppable.min.js	7865	0644	edit dl rm
menu.js	18956	0644	edit dl rm
menu.min.js	11586	0644	edit dl rm
mouse.js	6224	0644	edit dl rm
mouse.min.js	3608	0644	edit dl rm
progressbar.js	4235	0644	edit dl rm
progressbar.min.js	2576	0644	edit dl rm
resizable.js	30395	0644	edit dl rm
resizable.min.js	21229	0644	edit dl rm
selectable.js	8125	0644	edit dl rm
selectable.min.js	5386	0644	edit dl rm
selectmenu.js	16238	0644	edit dl rm
selectmenu.min.js	10317	0644	edit dl rm
slider.js	19595	0644	edit dl rm
slider.min.js	12726	0644	edit dl rm
sortable.js	47637	0644	edit dl rm
sortable.min.js	28688	0644	edit dl rm
spinner.js	14430	0644	edit dl rm
spinner.min.js	8561	0644	edit dl rm
tabs.js	23658	0644	edit dl rm
tabs.min.js	14228	0644	edit dl rm
tooltip.js	14472	0644	edit dl rm
tooltip.min.js	7689	0644	edit dl rm

Edit: /usr/share/javascript/jquery-ui/ui/widgets/dialog.js (23738B)

/*!
 * jQuery UI Dialog 1.13.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Dialog
//>>group: Widgets
//>>description: Displays customizable dialog windows.
//>>docs: http://api.jqueryui.com/dialog/
//>>demos: http://jqueryui.com/dialog/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/dialog.css
//>>css.theme: ../../themes/base/theme.css

( function( factory ) {
	"use strict";

if ( typeof define === "function" && define.amd ) {

// AMD. Register as an anonymous module.
		define( [
			"jquery",
			"./button",
			"./draggable",
			"./mouse",
			"./resizable",
			"../focusable",
			"../keycode",
			"../position",
			"../safe-active-element",
			"../safe-blur",
			"../tabbable",
			"../unique-id",
			"../version",
			"../widget"
		], factory );
	} else {

// Browser globals
		factory( jQuery );
	}
} )( function( $ ) {
"use strict";

$.widget( "ui.dialog", {
	version: "1.13.1",
	options: {
		appendTo: "body",
		autoOpen: true,
		buttons: [],
		classes: {
			"ui-dialog": "ui-corner-all",
			"ui-dialog-titlebar": "ui-corner-all"
		},
		closeOnEscape: true,
		closeText: "Close",
		draggable: true,
		hide: null,
		height: "auto",
		maxHeight: null,
		maxWidth: null,
		minHeight: 150,
		minWidth: 150,
		modal: false,
		position: {
			my: "center",
			at: "center",
			of: window,
			collision: "fit",

// Ensure the titlebar is always visible
			using: function( pos ) {
				var topOffset = $( this ).css( pos ).offset().top;
				if ( topOffset < 0 ) {
					$( this ).css( "top", pos.top - topOffset );
				}
			}
		},
		resizable: true,
		show: null,
		title: null,
		width: 300,

// Callbacks
		beforeClose: null,
		close: null,
		drag: null,
		dragStart: null,
		dragStop: null,
		focus: null,
		open: null,
		resize: null,
		resizeStart: null,
		resizeStop: null
	},

sizeRelatedOptions: {
		buttons: true,
		height: true,
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true,
		width: true
	},

resizableRelatedOptions: {
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true
	},

_create: function() {
		this.originalCss = {
			display: this.element[ 0 ].style.display,
			width: this.element[ 0 ].style.width,
			minHeight: this.element[ 0 ].style.minHeight,
			maxHeight: this.element[ 0 ].style.maxHeight,
			height: this.element[ 0 ].style.height
		};
		this.originalPosition = {
			parent: this.element.parent(),
			index: this.element.parent().children().index( this.element )
		};
		this.originalTitle = this.element.attr( "title" );
		if ( this.options.title == null && this.originalTitle != null ) {
			this.options.title = this.originalTitle;
		}

// Dialogs can't be disabled
		if ( this.options.disabled ) {
			this.options.disabled = false;
		}

this._createWrapper();

this.element
			.show()
			.removeAttr( "title" )
			.appendTo( this.uiDialog );

this._addClass( "ui-dialog-content", "ui-widget-content" );

this._createTitlebar();
		this._createButtonPane();

if ( this.options.draggable && $.fn.draggable ) {
			this._makeDraggable();
		}
		if ( this.options.resizable && $.fn.resizable ) {
			this._makeResizable();
		}

this._isOpen = false;

this._trackFocus();
	},

_init: function() {
		if ( this.options.autoOpen ) {
			this.open();
		}
	},

_appendTo: function() {
		var element = this.options.appendTo;
		if ( element && ( element.jquery || element.nodeType ) ) {
			return $( element );
		}
		return this.document.find( element || "body" ).eq( 0 );
	},

_destroy: function() {
		var next,
			originalPosition = this.originalPosition;

this._untrackInstance();
		this._destroyOverlay();

this.element
			.removeUniqueId()
			.css( this.originalCss )

// Without detaching first, the following becomes really slow
			.detach();

this.uiDialog.remove();

if ( this.originalTitle ) {
			this.element.attr( "title", this.originalTitle );
		}

next = originalPosition.parent.children().eq( originalPosition.index );

// Don't try to place the dialog next to itself (#8613)
		if ( next.length && next[ 0 ] !== this.element[ 0 ] ) {
			next.before( this.element );
		} else {
			originalPosition.parent.append( this.element );
		}
	},

widget: function() {
		return this.uiDialog;
	},

disable: $.noop,
	enable: $.noop,

close: function( event ) {
		var that = this;

if ( !this._isOpen || this._trigger( "beforeClose", event ) === false ) {
			return;
		}

this._isOpen = false;
		this._focusedElement = null;
		this._destroyOverlay();
		this._untrackInstance();

if ( !this.opener.filter( ":focusable" ).trigger( "focus" ).length ) {

// Hiding a focused element doesn't trigger blur in WebKit
			// so in case we have nothing to focus on, explicitly blur the active element
			// https://bugs.webkit.org/show_bug.cgi?id=47182
			$.ui.safeBlur( $.ui.safeActiveElement( this.document[ 0 ] ) );
		}

this._hide( this.uiDialog, this.options.hide, function() {
			that._trigger( "close", event );
		} );
	},

isOpen: function() {
		return this._isOpen;
	},

moveToTop: function() {
		this._moveToTop();
	},

_moveToTop: function( event, silent ) {
		var moved = false,
			zIndices = this.uiDialog.siblings( ".ui-front:visible" ).map( function() {
				return +$( this ).css( "z-index" );
			} ).get(),
			zIndexMax = Math.max.apply( null, zIndices );

if ( zIndexMax >= +this.uiDialog.css( "z-index" ) ) {
			this.uiDialog.css( "z-index", zIndexMax + 1 );
			moved = true;
		}

if ( moved && !silent ) {
			this._trigger( "focus", event );
		}
		return moved;
	},

open: function() {
		var that = this;
		if ( this._isOpen ) {
			if ( this._moveToTop() ) {
				this._focusTabbable();
			}
			return;
		}

this._isOpen = true;
		this.opener = $( $.ui.safeActiveElement( this.document[ 0 ] ) );

this._size();
		this._position();
		this._createOverlay();
		this._moveToTop( null, true );

// Ensure the overlay is moved to the top with the dialog, but only when
		// opening. The overlay shouldn't move after the dialog is open so that
		// modeless dialogs opened after the modal dialog stack properly.
		if ( this.overlay ) {
			this.overlay.css( "z-index", this.uiDialog.css( "z-index" ) - 1 );
		}

this._show( this.uiDialog, this.options.show, function() {
			that._focusTabbable();
			that._trigger( "focus" );
		} );

// Track the dialog immediately upon opening in case a focus event
		// somehow occurs outside of the dialog before an element inside the
		// dialog is focused (#10152)
		this._makeFocusTarget();

this._trigger( "open" );
	},

_focusTabbable: function() {

// Set focus to the first match:
		// 1. An element that was focused previously
		// 2. First element inside the dialog matching [autofocus]
		// 3. Tabbable element inside the content element
		// 4. Tabbable element inside the buttonpane
		// 5. The close button
		// 6. The dialog itself
		var hasFocus = this._focusedElement;
		if ( !hasFocus ) {
			hasFocus = this.element.find( "[autofocus]" );
		}
		if ( !hasFocus.length ) {
			hasFocus = this.element.find( ":tabbable" );
		}
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialogButtonPane.find( ":tabbable" );
		}
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialogTitlebarClose.filter( ":tabbable" );
		}
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialog;
		}
		hasFocus.eq( 0 ).trigger( "focus" );
	},

_restoreTabbableFocus: function() {
		var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
			isActive = this.uiDialog[ 0 ] === activeElement ||
				$.contains( this.uiDialog[ 0 ], activeElement );
		if ( !isActive ) {
			this._focusTabbable();
		}
	},

_keepFocus: function( event ) {
		event.preventDefault();
		this._restoreTabbableFocus();

// support: IE
		// IE <= 8 doesn't prevent moving focus even with event.preventDefault()
		// so we check again later
		this._delay( this._restoreTabbableFocus );
	},

_createWrapper: function() {
		this.uiDialog = $( "<div>" )
			.hide()
			.attr( {

// Setting tabIndex makes the div focusable
				tabIndex: -1,
				role: "dialog"
			} )
			.appendTo( this._appendTo() );

this._addClass( this.uiDialog, "ui-dialog", "ui-widget ui-widget-content ui-front" );
		this._on( this.uiDialog, {
			keydown: function( event ) {
				if ( this.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
						event.keyCode === $.ui.keyCode.ESCAPE ) {
					event.preventDefault();
					this.close( event );
					return;
				}

// Prevent tabbing out of dialogs
				if ( event.keyCode !== $.ui.keyCode.TAB || event.isDefaultPrevented() ) {
					return;
				}
				var tabbables = this.uiDialog.find( ":tabbable" ),
					first = tabbables.first(),
					last = tabbables.last();

if ( ( event.target === last[ 0 ] || event.target === this.uiDialog[ 0 ] ) &&
						!event.shiftKey ) {
					this._delay( function() {
						first.trigger( "focus" );
					} );
					event.preventDefault();
				} else if ( ( event.target === first[ 0 ] ||
						event.target === this.uiDialog[ 0 ] ) && event.shiftKey ) {
					this._delay( function() {
						last.trigger( "focus" );
					} );
					event.preventDefault();
				}
			},
			mousedown: function( event ) {
				if ( this._moveToTop( event ) ) {
					this._focusTabbable();
				}
			}
		} );

// We assume that any existing aria-describedby attribute means
		// that the dialog content is marked up properly
		// otherwise we brute force the content as the description
		if ( !this.element.find( "[aria-describedby]" ).length ) {
			this.uiDialog.attr( {
				"aria-describedby": this.element.uniqueId().attr( "id" )
			} );
		}
	},

_createTitlebar: function() {
		var uiDialogTitle;

this.uiDialogTitlebar = $( "<div>" );
		this._addClass( this.uiDialogTitlebar,
			"ui-dialog-titlebar", "ui-widget-header ui-helper-clearfix" );
		this._on( this.uiDialogTitlebar, {
			mousedown: function( event ) {

// Don't prevent click on close button (#8838)
				// Focusing a dialog that is partially scrolled out of view
				// causes the browser to scroll it into view, preventing the click event
				if ( !$( event.target ).closest( ".ui-dialog-titlebar-close" ) ) {

// Dialog isn't getting focus when dragging (#8063)
					this.uiDialog.trigger( "focus" );
				}
			}
		} );

// Support: IE
		// Use type="button" to prevent enter keypresses in textboxes from closing the
		// dialog in IE (#9312)
		this.uiDialogTitlebarClose = $( "<button type='button'></button>" )
			.button( {
				label: $( "<a>" ).text( this.options.closeText ).html(),
				icon: "ui-icon-closethick",
				showLabel: false
			} )
			.appendTo( this.uiDialogTitlebar );

this._addClass( this.uiDialogTitlebarClose, "ui-dialog-titlebar-close" );
		this._on( this.uiDialogTitlebarClose, {
			click: function( event ) {
				event.preventDefault();
				this.close( event );
			}
		} );

uiDialogTitle = $( "<span>" ).uniqueId().prependTo( this.uiDialogTitlebar );
		this._addClass( uiDialogTitle, "ui-dialog-title" );
		this._title( uiDialogTitle );

this.uiDialogTitlebar.prependTo( this.uiDialog );

this.uiDialog.attr( {
			"aria-labelledby": uiDialogTitle.attr( "id" )
		} );
	},

_title: function( title ) {
		if ( this.options.title ) {
			title.text( this.options.title );
		} else {
			title.html( "&#160;" );
		}
	},

_createButtonPane: function() {
		this.uiDialogButtonPane = $( "<div>" );
		this._addClass( this.uiDialogButtonPane, "ui-dialog-buttonpane",
			"ui-widget-content ui-helper-clearfix" );

this.uiButtonSet = $( "<div>" )
			.appendTo( this.uiDialogButtonPane );
		this._addClass( this.uiButtonSet, "ui-dialog-buttonset" );

this._createButtons();
	},

_createButtons: function() {
		var that = this,
			buttons = this.options.buttons;

// If we already have a button pane, remove it
		this.uiDialogButtonPane.remove();
		this.uiButtonSet.empty();

if ( $.isEmptyObject( buttons ) || ( Array.isArray( buttons ) && !buttons.length ) ) {
			this._removeClass( this.uiDialog, "ui-dialog-buttons" );
			return;
		}

$.each( buttons, function( name, props ) {
			var click, buttonOptions;
			props = typeof props === "function" ?
				{ click: props, text: name } :
				props;

// Default to a non-submitting button
			props = $.extend( { type: "button" }, props );

// Change the context for the click callback to be the main element
			click = props.click;
			buttonOptions = {
				icon: props.icon,
				iconPosition: props.iconPosition,
				showLabel: props.showLabel,

// Deprecated options
				icons: props.icons,
				text: props.text
			};

delete props.click;
			delete props.icon;
			delete props.iconPosition;
			delete props.showLabel;

// Deprecated options
			delete props.icons;
			if ( typeof props.text === "boolean" ) {
				delete props.text;
			}

$( "<button></button>", props )
				.button( buttonOptions )
				.appendTo( that.uiButtonSet )
				.on( "click", function() {
					click.apply( that.element[ 0 ], arguments );
				} );
		} );
		this._addClass( this.uiDialog, "ui-dialog-buttons" );
		this.uiDialogButtonPane.appendTo( this.uiDialog );
	},

_makeDraggable: function() {
		var that = this,
			options = this.options;

function filteredUi( ui ) {
			return {
				position: ui.position,
				offset: ui.offset
			};
		}

this.uiDialog.draggable( {
			cancel: ".ui-dialog-content, .ui-dialog-titlebar-close",
			handle: ".ui-dialog-titlebar",
			containment: "document",
			start: function( event, ui ) {
				that._addClass( $( this ), "ui-dialog-dragging" );
				that._blockFrames();
				that._trigger( "dragStart", event, filteredUi( ui ) );
			},
			drag: function( event, ui ) {
				that._trigger( "drag", event, filteredUi( ui ) );
			},
			stop: function( event, ui ) {
				var left = ui.offset.left - that.document.scrollLeft(),
					top = ui.offset.top - that.document.scrollTop();

options.position = {
					my: "left top",
					at: "left" + ( left >= 0 ? "+" : "" ) + left + " " +
						"top" + ( top >= 0 ? "+" : "" ) + top,
					of: that.window
				};
				that._removeClass( $( this ), "ui-dialog-dragging" );
				that._unblockFrames();
				that._trigger( "dragStop", event, filteredUi( ui ) );
			}
		} );
	},

_makeResizable: function() {
		var that = this,
			options = this.options,
			handles = options.resizable,

// .ui-resizable has position: relative defined in the stylesheet
			// but dialogs have to use absolute or fixed positioning
			position = this.uiDialog.css( "position" ),
			resizeHandles = typeof handles === "string" ?
				handles :
				"n,e,s,w,se,sw,ne,nw";

function filteredUi( ui ) {
			return {
				originalPosition: ui.originalPosition,
				originalSize: ui.originalSize,
				position: ui.position,
				size: ui.size
			};
		}

this.uiDialog.resizable( {
			cancel: ".ui-dialog-content",
			containment: "document",
			alsoResize: this.element,
			maxWidth: options.maxWidth,
			maxHeight: options.maxHeight,
			minWidth: options.minWidth,
			minHeight: this._minHeight(),
			handles: resizeHandles,
			start: function( event, ui ) {
				that._addClass( $( this ), "ui-dialog-resizing" );
				that._blockFrames();
				that._trigger( "resizeStart", event, filteredUi( ui ) );
			},
			resize: function( event, ui ) {
				that._trigger( "resize", event, filteredUi( ui ) );
			},
			stop: function( event, ui ) {
				var offset = that.uiDialog.offset(),
					left = offset.left - that.document.scrollLeft(),
					top = offset.top - that.document.scrollTop();

options.height = that.uiDialog.height();
				options.width = that.uiDialog.width();
				options.position = {
					my: "left top",
					at: "left" + ( left >= 0 ? "+" : "" ) + left + " " +
						"top" + ( top >= 0 ? "+" : "" ) + top,
					of: that.window
				};
				that._removeClass( $( this ), "ui-dialog-resizing" );
				that._unblockFrames();
				that._trigger( "resizeStop", event, filteredUi( ui ) );
			}
		} )
			.css( "position", position );
	},

_trackFocus: function() {
		this._on( this.widget(), {
			focusin: function( event ) {
				this._makeFocusTarget();
				this._focusedElement = $( event.target );
			}
		} );
	},

_makeFocusTarget: function() {
		this._untrackInstance();
		this._trackingInstances().unshift( this );
	},

_untrackInstance: function() {
		var instances = this._trackingInstances(),
			exists = $.inArray( this, instances );
		if ( exists !== -1 ) {
			instances.splice( exists, 1 );
		}
	},

_trackingInstances: function() {
		var instances = this.document.data( "ui-dialog-instances" );
		if ( !instances ) {
			instances = [];
			this.document.data( "ui-dialog-instances", instances );
		}
		return instances;
	},

_minHeight: function() {
		var options = this.options;

return options.height === "auto" ?
			options.minHeight :
			Math.min( options.minHeight, options.height );
	},

_position: function() {

// Need to show the dialog to get the actual offset in the position plugin
		var isVisible = this.uiDialog.is( ":visible" );
		if ( !isVisible ) {
			this.uiDialog.show();
		}
		this.uiDialog.position( this.options.position );
		if ( !isVisible ) {
			this.uiDialog.hide();
		}
	},

_setOptions: function( options ) {
		var that = this,
			resize = false,
			resizableOptions = {};

$.each( options, function( key, value ) {
			that._setOption( key, value );

if ( key in that.sizeRelatedOptions ) {
				resize = true;
			}
			if ( key in that.resizableRelatedOptions ) {
				resizableOptions[ key ] = value;
			}
		} );

if ( resize ) {
			this._size();
			this._position();
		}
		if ( this.uiDialog.is( ":data(ui-resizable)" ) ) {
			this.uiDialog.resizable( "option", resizableOptions );
		}
	},

_setOption: function( key, value ) {
		var isDraggable, isResizable,
			uiDialog = this.uiDialog;

if ( key === "disabled" ) {
			return;
		}

this._super( key, value );

if ( key === "appendTo" ) {
			this.uiDialog.appendTo( this._appendTo() );
		}

if ( key === "buttons" ) {
			this._createButtons();
		}

if ( key === "closeText" ) {
			this.uiDialogTitlebarClose.button( {

// Ensure that we always pass a string
				label: $( "<a>" ).text( "" + this.options.closeText ).html()
			} );
		}

if ( key === "draggable" ) {
			isDraggable = uiDialog.is( ":data(ui-draggable)" );
			if ( isDraggable && !value ) {
				uiDialog.draggable( "destroy" );
			}

if ( !isDraggable && value ) {
				this._makeDraggable();
			}
		}

if ( key === "position" ) {
			this._position();
		}

if ( key === "resizable" ) {

// currently resizable, becoming non-resizable
			isResizable = uiDialog.is( ":data(ui-resizable)" );
			if ( isResizable && !value ) {
				uiDialog.resizable( "destroy" );
			}

// Currently resizable, changing handles
			if ( isResizable && typeof value === "string" ) {
				uiDialog.resizable( "option", "handles", value );
			}

// Currently non-resizable, becoming resizable
			if ( !isResizable && value !== false ) {
				this._makeResizable();
			}
		}

if ( key === "title" ) {
			this._title( this.uiDialogTitlebar.find( ".ui-dialog-title" ) );
		}
	},

_size: function() {

// If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
		// divs will both have width and height set, so we need to reset them
		var nonContentHeight, minContentHeight, maxContentHeight,
			options = this.options;

// Reset content sizing
		this.element.show().css( {
			width: "auto",
			minHeight: 0,
			maxHeight: "none",
			height: 0
		} );

if ( options.minWidth > options.width ) {
			options.width = options.minWidth;
		}

// Reset wrapper sizing
		// determine the height of all the non-content elements
		nonContentHeight = this.uiDialog.css( {
			height: "auto",
			width: options.width
		} )
			.outerHeight();
		minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );
		maxContentHeight = typeof options.maxHeight === "number" ?
			Math.max( 0, options.maxHeight - nonContentHeight ) :
			"none";

if ( options.height === "auto" ) {
			this.element.css( {
				minHeight: minContentHeight,
				maxHeight: maxContentHeight,
				height: "auto"
			} );
		} else {
			this.element.height( Math.max( 0, options.height - nonContentHeight ) );
		}

if ( this.uiDialog.is( ":data(ui-resizable)" ) ) {
			this.uiDialog.resizable( "option", "minHeight", this._minHeight() );
		}
	},

_blockFrames: function() {
		this.iframeBlocks = this.document.find( "iframe" ).map( function() {
			var iframe = $( this );

return $( "<div>" )
				.css( {
					position: "absolute",
					width: iframe.outerWidth(),
					height: iframe.outerHeight()
				} )
				.appendTo( iframe.parent() )
				.offset( iframe.offset() )[ 0 ];
		} );
	},

_unblockFrames: function() {
		if ( this.iframeBlocks ) {
			this.iframeBlocks.remove();
			delete this.iframeBlocks;
		}
	},

_allowInteraction: function( event ) {
		if ( $( event.target ).closest( ".ui-dialog" ).length ) {
			return true;
		}

// TODO: Remove hack when datepicker implements
		// the .ui-front logic (#8989)
		return !!$( event.target ).closest( ".ui-datepicker" ).length;
	},

_createOverlay: function() {
		if ( !this.options.modal ) {
			return;
		}

var jqMinor = $.fn.jquery.substring( 0, 4 );

// We use a delay in case the overlay is created from an
		// event that we're going to be cancelling (#2804)
		var isOpening = true;
		this._delay( function() {
			isOpening = false;
		} );

if ( !this.document.data( "ui-dialog-overlays" ) ) {

// Prevent use of anchors and inputs
			// This doesn't use `_on()` because it is a shared event handler
			// across all open modal dialogs.
			this.document.on( "focusin.ui-dialog", function( event ) {
				if ( isOpening ) {
					return;
				}

var instance = this._trackingInstances()[ 0 ];
				if ( !instance._allowInteraction( event ) ) {
					event.preventDefault();
					instance._focusTabbable();

// Support: jQuery >=3.4 <3.6 only
					// Focus re-triggering in jQuery 3.4/3.5 makes the original element
					// have its focus event propagated last, breaking the re-targeting.
					// Trigger focus in a delay in addition if needed to avoid the issue
					// See https://github.com/jquery/jquery/issues/4382
					if ( jqMinor === "3.4." || jqMinor === "3.5." ) {
						instance._delay( instance._restoreTabbableFocus );
					}
				}
			}.bind( this ) );
		}

this.overlay = $( "<div>" )
			.appendTo( this._appendTo() );

this._addClass( this.overlay, null, "ui-widget-overlay ui-front" );
		this._on( this.overlay, {
			mousedown: "_keepFocus"
		} );
		this.document.data( "ui-dialog-overlays",
			( this.document.data( "ui-dialog-overlays" ) || 0 ) + 1 );
	},

_destroyOverlay: function() {
		if ( !this.options.modal ) {
			return;
		}

if ( this.overlay ) {
			var overlays = this.document.data( "ui-dialog-overlays" ) - 1;

if ( !overlays ) {
				this.document.off( "focusin.ui-dialog" );
				this.document.removeData( "ui-dialog-overlays" );
			} else {
				this.document.data( "ui-dialog-overlays", overlays );
			}

this.overlay.remove();
			this.overlay = null;
		}
	}
} );

// DEPRECATED
// TODO: switch return back to widget declaration at top of file when this is removed
if ( $.uiBackCompat !== false ) {

// Backcompat for dialogClass option
	$.widget( "ui.dialog", $.ui.dialog, {
		options: {
			dialogClass: ""
		},
		_createWrapper: function() {
			this._super();
			this.uiDialog.addClass( this.options.dialogClass );
		},
		_setOption: function( key, value ) {
			if ( key === "dialogClass" ) {
				this.uiDialog
					.removeClass( this.options.dialogClass )
					.addClass( value );
			}
			this._superApply( arguments );
		}
	} );
}

return $.ui.dialog;

} );

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