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// Handle activating a panel during the animation for another activation

[500] Fix | Delete

this.prevShow.add( this.prevHide ).stop( true, true );

[501] Fix | Delete

this.prevShow = toShow;

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this.prevHide = toHide;

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if ( this.options.animate ) {

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this._animate( toShow, toHide, data );

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} else {

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toHide.hide();

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toShow.show();

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this._toggleComplete( data );

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}

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toHide.attr( {

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"aria-hidden": "true"

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} );

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toHide.prev().attr( {

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"aria-selected": "false",

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"aria-expanded": "false"

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} );

[519] Fix | Delete

[520] Fix | Delete

// if we're switching panels, remove the old header from the tab order

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// if we're opening from collapsed state, remove the previous header from the tab order

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// if we're collapsing, then keep the collapsing header in the tab order

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if ( toShow.length && toHide.length ) {

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toHide.prev().attr( {

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"tabIndex": -1,

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"aria-expanded": "false"

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} );

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} else if ( toShow.length ) {

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this.headers.filter( function() {

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return parseInt( $( this ).attr( "tabIndex" ), 10 ) === 0;

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} )

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.attr( "tabIndex", -1 );

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}

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[535] Fix | Delete

toShow

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.attr( "aria-hidden", "false" )

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.prev()

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.attr( {

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"aria-selected": "true",

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"aria-expanded": "true",

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tabIndex: 0

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} );

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_animate: function( toShow, toHide, data ) {

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var total, easing, duration,

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that = this,

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adjust = 0,

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boxSizing = toShow.css( "box-sizing" ),

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down = toShow.length &&

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( !toHide.length || ( toShow.index() < toHide.index() ) ),

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animate = this.options.animate || {},

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options = down && animate.down || animate,

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complete = function() {

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that._toggleComplete( data );

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};

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[558] Fix | Delete

if ( typeof options === "number" ) {

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duration = options;

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}

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if ( typeof options === "string" ) {

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easing = options;

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}

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// fall back from options to animation in case of partial down settings

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easing = easing || options.easing || animate.easing;

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duration = duration || options.duration || animate.duration;

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if ( !toHide.length ) {

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return toShow.animate( this.showProps, duration, easing, complete );

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}

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if ( !toShow.length ) {

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return toHide.animate( this.hideProps, duration, easing, complete );

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}

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total = toShow.show().outerHeight();

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toHide.animate( this.hideProps, {

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duration: duration,

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easing: easing,

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step: function( now, fx ) {

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fx.now = Math.round( now );

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}

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} );

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toShow

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.hide()

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.animate( this.showProps, {

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duration: duration,

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easing: easing,

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complete: complete,

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step: function( now, fx ) {

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fx.now = Math.round( now );

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if ( fx.prop !== "height" ) {

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if ( boxSizing === "content-box" ) {

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adjust += fx.now;

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}

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} else if ( that.options.heightStyle !== "content" ) {

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fx.now = Math.round( total - toHide.outerHeight() - adjust );

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adjust = 0;

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}

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}

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} );

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[603] Fix | Delete

[604] Fix | Delete

_toggleComplete: function( data ) {

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var toHide = data.oldPanel,

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prev = toHide.prev();

[607] Fix | Delete

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this._removeClass( toHide, "ui-accordion-content-active" );

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this._removeClass( prev, "ui-accordion-header-active" )

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._addClass( prev, "ui-accordion-header-collapsed" );

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[612] Fix | Delete

// Work around for rendering bug in IE (#5421)

[613] Fix | Delete

if ( toHide.length ) {

[614] Fix | Delete

toHide.parent()[ 0 ].className = toHide.parent()[ 0 ].className;

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}

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this._trigger( "activate", null, data );

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}

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} );

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} );

[621] Fix | Delete

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