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/*!

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* jQuery UI Droppable 1.13.3

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* https://jqueryui.com

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* Copyright OpenJS Foundation and other contributors

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* Released under the MIT license.

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* https://jquery.org/license

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//>>label: Droppable

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//>>group: Interactions

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//>>description: Enables drop targets for draggable elements.

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//>>docs: https://api.jqueryui.com/droppable/

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//>>demos: https://jqueryui.com/droppable/

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( function( factory ) {

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"use strict";

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

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// AMD. Register as an anonymous module.

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define( [

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"jquery",

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"./draggable",

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"./mouse",

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"../version",

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"../widget"

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], factory );

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} else {

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// Browser globals

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factory( jQuery );

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}

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} )( function( $ ) {

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"use strict";

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$.widget( "ui.droppable", {

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version: "1.13.3",

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widgetEventPrefix: "drop",

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options: {

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accept: "*",

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addClasses: true,

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greedy: false,

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scope: "default",

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tolerance: "intersect",

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// Callbacks

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activate: null,

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deactivate: null,

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drop: null,

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out: null,

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over: null

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_create: function() {

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var proportions,

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o = this.options,

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accept = o.accept;

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this.isover = false;

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this.isout = true;

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this.accept = typeof accept === "function" ? accept : function( d ) {

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return d.is( accept );

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};

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this.proportions = function( /* valueToWrite */ ) {

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if ( arguments.length ) {

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// Store the droppable's proportions

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proportions = arguments[ 0 ];

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} else {

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// Retrieve or derive the droppable's proportions

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return proportions ?

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proportions :

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proportions = {

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width: this.element[ 0 ].offsetWidth,

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height: this.element[ 0 ].offsetHeight

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};

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}

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};

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this._addToManager( o.scope );

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if ( o.addClasses ) {

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this._addClass( "ui-droppable" );

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}

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_addToManager: function( scope ) {

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// Add the reference and positions to the manager

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$.ui.ddmanager.droppables[ scope ] = $.ui.ddmanager.droppables[ scope ] || [];

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$.ui.ddmanager.droppables[ scope ].push( this );

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_splice: function( drop ) {

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var i = 0;

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for ( ; i < drop.length; i++ ) {

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if ( drop[ i ] === this ) {

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drop.splice( i, 1 );

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}

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}

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_destroy: function() {

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var drop = $.ui.ddmanager.droppables[ this.options.scope ];

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this._splice( drop );

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_setOption: function( key, value ) {

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if ( key === "accept" ) {

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this.accept = typeof value === "function" ? value : function( d ) {

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return d.is( value );

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};

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} else if ( key === "scope" ) {

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var drop = $.ui.ddmanager.droppables[ this.options.scope ];

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this._splice( drop );

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this._addToManager( value );

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}

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this._super( key, value );

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_activate: function( event ) {

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var draggable = $.ui.ddmanager.current;

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this._addActiveClass();

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if ( draggable ) {

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this._trigger( "activate", event, this.ui( draggable ) );

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}

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_deactivate: function( event ) {

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var draggable = $.ui.ddmanager.current;

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this._removeActiveClass();

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if ( draggable ) {

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this._trigger( "deactivate", event, this.ui( draggable ) );

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}

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_over: function( event ) {

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var draggable = $.ui.ddmanager.current;

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// Bail if draggable and droppable are same element

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if ( !draggable || ( draggable.currentItem ||

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draggable.element )[ 0 ] === this.element[ 0 ] ) {

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return;

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}

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if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem ||

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draggable.element ) ) ) {

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this._addHoverClass();

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this._trigger( "over", event, this.ui( draggable ) );

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}

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_out: function( event ) {

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var draggable = $.ui.ddmanager.current;

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// Bail if draggable and droppable are same element

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if ( !draggable || ( draggable.currentItem ||

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draggable.element )[ 0 ] === this.element[ 0 ] ) {

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return;

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}

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if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem ||

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draggable.element ) ) ) {

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this._removeHoverClass();

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this._trigger( "out", event, this.ui( draggable ) );

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}

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_drop: function( event, custom ) {

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var draggable = custom || $.ui.ddmanager.current,

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childrenIntersection = false;

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// Bail if draggable and droppable are same element

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if ( !draggable || ( draggable.currentItem ||

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draggable.element )[ 0 ] === this.element[ 0 ] ) {

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return false;

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}

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this.element

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.find( ":data(ui-droppable)" )

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.not( ".ui-draggable-dragging" )

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.each( function() {

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var inst = $( this ).droppable( "instance" );

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if (

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inst.options.greedy &&

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!inst.options.disabled &&

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inst.options.scope === draggable.options.scope &&

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inst.accept.call(

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inst.element[ 0 ], ( draggable.currentItem || draggable.element )

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) &&

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$.ui.intersect(

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draggable,

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$.extend( inst, { offset: inst.element.offset() } ),

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inst.options.tolerance, event

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)

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) {

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childrenIntersection = true;

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return false;

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}

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} );

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if ( childrenIntersection ) {

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return false;

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}

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if ( this.accept.call( this.element[ 0 ],

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( draggable.currentItem || draggable.element ) ) ) {

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this._removeActiveClass();

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this._removeHoverClass();

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this._trigger( "drop", event, this.ui( draggable ) );

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return this.element;

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}

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return false;

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ui: function( c ) {

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return {

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draggable: ( c.currentItem || c.element ),

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helper: c.helper,

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position: c.position,

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offset: c.positionAbs

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};

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// Extension points just to make backcompat sane and avoid duplicating logic

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// TODO: Remove in 1.14 along with call to it below

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_addHoverClass: function() {

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this._addClass( "ui-droppable-hover" );

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_removeHoverClass: function() {

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this._removeClass( "ui-droppable-hover" );

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_addActiveClass: function() {

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this._addClass( "ui-droppable-active" );

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_removeActiveClass: function() {

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this._removeClass( "ui-droppable-active" );

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}

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} );

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$.ui.intersect = ( function() {

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function isOverAxis( x, reference, size ) {

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return ( x >= reference ) && ( x < ( reference + size ) );

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}

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return function( draggable, droppable, toleranceMode, event ) {

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if ( !droppable.offset ) {

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return false;

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}

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var x1 = ( draggable.positionAbs ||

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draggable.position.absolute ).left + draggable.margins.left,

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y1 = ( draggable.positionAbs ||

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draggable.position.absolute ).top + draggable.margins.top,

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x2 = x1 + draggable.helperProportions.width,

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y2 = y1 + draggable.helperProportions.height,

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l = droppable.offset.left,

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t = droppable.offset.top,

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r = l + droppable.proportions().width,

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b = t + droppable.proportions().height;

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switch ( toleranceMode ) {

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case "fit":

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return ( l <= x1 && x2 <= r && t <= y1 && y2 <= b );

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case "intersect":

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return ( l < x1 + ( draggable.helperProportions.width / 2 ) && // Right Half

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x2 - ( draggable.helperProportions.width / 2 ) < r && // Left Half

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t < y1 + ( draggable.helperProportions.height / 2 ) && // Bottom Half

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y2 - ( draggable.helperProportions.height / 2 ) < b ); // Top Half

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case "pointer":

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return isOverAxis( event.pageY, t, droppable.proportions().height ) &&

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isOverAxis( event.pageX, l, droppable.proportions().width );

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case "touch":

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return (

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( y1 >= t && y1 <= b ) || // Top edge touching

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( y2 >= t && y2 <= b ) || // Bottom edge touching

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( y1 < t && y2 > b ) // Surrounded vertically

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) && (

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( x1 >= l && x1 <= r ) || // Left edge touching

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( x2 >= l && x2 <= r ) || // Right edge touching

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( x1 < l && x2 > r ) // Surrounded horizontally

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);

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default:

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return false;

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}

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};

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} )();

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This manager tracks offsets of draggables and droppables

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$.ui.ddmanager = {

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current: null,

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droppables: { "default": [] },

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prepareOffsets: function( t, event ) {

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var i, j,

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m = $.ui.ddmanager.droppables[ t.options.scope ] || [],

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type = event ? event.type : null, // workaround for #2317

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list = ( t.currentItem || t.element ).find( ":data(ui-droppable)" ).addBack();

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droppablesLoop: for ( i = 0; i < m.length; i++ ) {

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// No disabled and non-accepted

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if ( m[ i ].options.disabled || ( t && !m[ i ].accept.call( m[ i ].element[ 0 ],

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( t.currentItem || t.element ) ) ) ) {

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continue;

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}

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// Filter out elements in the current dragged item

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for ( j = 0; j < list.length; j++ ) {

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if ( list[ j ] === m[ i ].element[ 0 ] ) {

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m[ i ].proportions().height = 0;

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continue droppablesLoop;

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}

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}

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m[ i ].visible = m[ i ].element.css( "display" ) !== "none";

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if ( !m[ i ].visible ) {

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continue;

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}

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// Activate the droppable if used directly from draggables

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if ( type === "mousedown" ) {

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m[ i ]._activate.call( m[ i ], event );

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}

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m[ i ].offset = m[ i ].element.offset();

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m[ i ].proportions( {

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width: m[ i ].element[ 0 ].offsetWidth,

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height: m[ i ].element[ 0 ].offsetHeight

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} );

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}

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drop: function( draggable, event ) {

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var dropped = false;

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// Create a copy of the droppables in case the list changes during the drop (#9116)

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$.each( ( $.ui.ddmanager.droppables[ draggable.options.scope ] || [] ).slice(), function() {

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if ( !this.options ) {

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return;

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}

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if ( !this.options.disabled && this.visible &&

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$.ui.intersect( draggable, this, this.options.tolerance, event ) ) {

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dropped = this._drop.call( this, event ) || dropped;

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}

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if ( !this.options.disabled && this.visible && this.accept.call( this.element[ 0 ],

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( draggable.currentItem || draggable.element ) ) ) {

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this.isout = true;

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this.isover = false;

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this._deactivate.call( this, event );

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}

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} );

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return dropped;

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dragStart: function( draggable, event ) {

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// Listen for scrolling so that if the dragging causes scrolling the position of the

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// droppables can be recalculated (see #5003)

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draggable.element.parentsUntil( "body" ).on( "scroll.droppable", function() {

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if ( !draggable.options.refreshPositions ) {

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$.ui.ddmanager.prepareOffsets( draggable, event );

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}

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} );

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drag: function( draggable, event ) {

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// If you have a highly dynamic page, you might try this option. It renders positions

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// every time you move the mouse.

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if ( draggable.options.refreshPositions ) {

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$.ui.ddmanager.prepareOffsets( draggable, event );

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}

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// Run through all droppables and check their positions based on specific tolerance options

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$.each( $.ui.ddmanager.droppables[ draggable.options.scope ] || [], function() {

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if ( this.options.disabled || this.greedyChild || !this.visible ) {

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return;

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}

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var parentInstance, scope, parent,

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intersects = $.ui.intersect( draggable, this, this.options.tolerance, event ),

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c = !intersects && this.isover ?

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"isout" :

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( intersects && !this.isover ? "isover" : null );

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if ( !c ) {

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return;

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}

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if ( this.options.greedy ) {

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// find droppable parents with same scope

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scope = this.options.scope;

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parent = this.element.parents( ":data(ui-droppable)" ).filter( function() {

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return $( this ).droppable( "instance" ).options.scope === scope;

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} );

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if ( parent.length ) {

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parentInstance = $( parent[ 0 ] ).droppable( "instance" );

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parentInstance.greedyChild = ( c === "isover" );

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}

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}

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// We just moved into a greedy child

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if ( parentInstance && c === "isover" ) {

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parentInstance.isover = false;

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parentInstance.isout = true;

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parentInstance._out.call( parentInstance, event );

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}

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this[ c ] = true;

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this[ c === "isout" ? "isover" : "isout" ] = false;

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this[ c === "isover" ? "_over" : "_out" ].call( this, event );

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// We just moved out of a greedy child

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if ( parentInstance && c === "isout" ) {

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parentInstance.isout = false;

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parentInstance.isover = true;

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parentInstance._over.call( parentInstance, event );

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}

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} );

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dragStop: function( draggable, event ) {

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draggable.element.parentsUntil( "body" ).off( "scroll.droppable" );

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// Call prepareOffsets one final time since IE does not fire return scroll events when

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// overflow was caused by drag (see #5003)

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if ( !draggable.options.refreshPositions ) {

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$.ui.ddmanager.prepareOffsets( draggable, event );

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}

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}

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};

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// DEPRECATED

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// TODO: switch return back to widget declaration at top of file when this is removed

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if ( $.uiBackCompat !== false ) {

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// Backcompat for activeClass and hoverClass options

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$.widget( "ui.droppable", $.ui.droppable, {

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options: {

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hoverClass: false,

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activeClass: false

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_addActiveClass: function() {

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this._super();

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if ( this.options.activeClass ) {

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this.element.addClass( this.options.activeClass );

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}

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_removeActiveClass: function() {

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this._super();

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if ( this.options.activeClass ) {

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this.element.removeClass( this.options.activeClass );

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}

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_addHoverClass: function() {

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this._super();

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if ( this.options.hoverClass ) {

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this.element.addClass( this.options.hoverClass );

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}

[489] Fix | Delete

[490] Fix | Delete

_removeHoverClass: function() {

[491] Fix | Delete

this._super();

[492] Fix | Delete

if ( this.options.hoverClass ) {

[493] Fix | Delete

this.element.removeClass( this.options.hoverClass );

[494] Fix | Delete

}

[495] Fix | Delete

}

[496] Fix | Delete

} );

[497] Fix | Delete

}

[498] Fix | Delete

[499] Fix | Delete