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* @since 4.7.0

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* @access public

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* @param {Object} [options] Options.

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* @param {boolean} [options.unsaved=false] Whether only values not saved yet into a changeset will be returned (differential changes).

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* @return {Object} Dirty setting values.

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api.dirtyValues = function dirtyValues( options ) {

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var values = {};

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api.each( function( setting ) {

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var settingRevision;

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if ( ! setting._dirty ) {

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return;

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}

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settingRevision = api._latestSettingRevisions[ setting.id ];

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// Skip including settings that have already been included in the changeset, if only requesting unsaved.

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if ( api.state( 'changesetStatus' ).get() && ( options && options.unsaved ) && ( _.isUndefined( settingRevision ) || settingRevision <= api._lastSavedRevision ) ) {

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return;

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}

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values[ setting.id ] = setting.get();

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} );

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return values;

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};

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/**

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* Request updates to the changeset.

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* @alias wp.customize.requestChangesetUpdate

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* @since 4.7.0

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* @access public

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* @param {Object} [changes] - Mapping of setting IDs to setting params each normally including a value property, or mapping to null.

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* If not provided, then the changes will still be obtained from unsaved dirty settings.

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* @param {Object} [args] - Additional options for the save request.

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* @param {boolean} [args.autosave=false] - Whether changes will be stored in autosave revision if the changeset has been promoted from an auto-draft.

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* @param {boolean} [args.force=false] - Send request to update even when there are no changes to submit. This can be used to request the latest status of the changeset on the server.

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* @param {string} [args.title] - Title to update in the changeset. Optional.

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* @param {string} [args.date] - Date to update in the changeset. Optional.

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* @return {jQuery.Promise} Promise resolving with the response data.

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api.requestChangesetUpdate = function requestChangesetUpdate( changes, args ) {

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var deferred, request, submittedChanges = {}, data, submittedArgs;

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deferred = new $.Deferred();

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// Prevent attempting changeset update while request is being made.

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if ( 0 !== api.state( 'processing' ).get() ) {

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deferred.reject( 'already_processing' );

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return deferred.promise();

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}

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submittedArgs = _.extend( {

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title: null,

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date: null,

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autosave: false,

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force: false

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}, args );

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if ( changes ) {

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_.extend( submittedChanges, changes );

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}

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// Ensure all revised settings (changes pending save) are also included, but not if marked for deletion in changes.

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_.each( api.dirtyValues( { unsaved: true } ), function( dirtyValue, settingId ) {

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if ( ! changes || null !== changes[ settingId ] ) {

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submittedChanges[ settingId ] = _.extend(

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{},

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submittedChanges[ settingId ] || {},

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{ value: dirtyValue }

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);

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}

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} );

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// Allow plugins to attach additional params to the settings.

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api.trigger( 'changeset-save', submittedChanges, submittedArgs );

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// Short-circuit when there are no pending changes.

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if ( ! submittedArgs.force && _.isEmpty( submittedChanges ) && null === submittedArgs.title && null === submittedArgs.date ) {

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deferred.resolve( {} );

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return deferred.promise();

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}

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// A status would cause a revision to be made, and for this wp.customize.previewer.save() should be used.

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// Status is also disallowed for revisions regardless.

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if ( submittedArgs.status ) {

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return deferred.reject( { code: 'illegal_status_in_changeset_update' } ).promise();

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}

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// Dates not beung allowed for revisions are is a technical limitation of post revisions.

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if ( submittedArgs.date && submittedArgs.autosave ) {

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return deferred.reject( { code: 'illegal_autosave_with_date_gmt' } ).promise();

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}

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// Make sure that publishing a changeset waits for all changeset update requests to complete.

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api.state( 'processing' ).set( api.state( 'processing' ).get() + 1 );

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deferred.always( function() {

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api.state( 'processing' ).set( api.state( 'processing' ).get() - 1 );

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} );

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// Ensure that if any plugins add data to save requests by extending query() that they get included here.

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data = api.previewer.query( { excludeCustomizedSaved: true } );

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delete data.customized; // Being sent in customize_changeset_data instead.

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_.extend( data, {

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nonce: api.settings.nonce.save,

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customize_theme: api.settings.theme.stylesheet,

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customize_changeset_data: JSON.stringify( submittedChanges )

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} );

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if ( null !== submittedArgs.title ) {

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data.customize_changeset_title = submittedArgs.title;

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}

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if ( null !== submittedArgs.date ) {

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data.customize_changeset_date = submittedArgs.date;

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}

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if ( false !== submittedArgs.autosave ) {

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data.customize_changeset_autosave = 'true';

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}

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// Allow plugins to modify the params included with the save request.

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api.trigger( 'save-request-params', data );

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request = wp.ajax.post( 'customize_save', data );

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request.done( function requestChangesetUpdateDone( data ) {

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var savedChangesetValues = {};

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// Ensure that all settings updated subsequently will be included in the next changeset update request.

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api._lastSavedRevision = Math.max( api._latestRevision, api._lastSavedRevision );

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api.state( 'changesetStatus' ).set( data.changeset_status );

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if ( data.changeset_date ) {

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api.state( 'changesetDate' ).set( data.changeset_date );

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}

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deferred.resolve( data );

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api.trigger( 'changeset-saved', data );

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if ( data.setting_validities ) {

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_.each( data.setting_validities, function( validity, settingId ) {

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if ( true === validity && _.isObject( submittedChanges[ settingId ] ) && ! _.isUndefined( submittedChanges[ settingId ].value ) ) {

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savedChangesetValues[ settingId ] = submittedChanges[ settingId ].value;

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}

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} );

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}

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api.previewer.send( 'changeset-saved', _.extend( {}, data, { saved_changeset_values: savedChangesetValues } ) );

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} );

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request.fail( function requestChangesetUpdateFail( data ) {

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deferred.reject( data );

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api.trigger( 'changeset-error', data );

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} );

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request.always( function( data ) {

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if ( data.setting_validities ) {

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api._handleSettingValidities( {

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settingValidities: data.setting_validities

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} );

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}

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} );

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return deferred.promise();

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};

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/**

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* Watch all changes to Value properties, and bubble changes to parent Values instance

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* @alias wp.customize.utils.bubbleChildValueChanges

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* @since 4.1.0

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* @param {wp.customize.Class} instance

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* @param {Array} properties The names of the Value instances to watch.

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api.utils.bubbleChildValueChanges = function ( instance, properties ) {

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$.each( properties, function ( i, key ) {

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instance[ key ].bind( function ( to, from ) {

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if ( instance.parent && to !== from ) {

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instance.parent.trigger( 'change', instance );

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}

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} );

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} );

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};

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/**

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* Expand a panel, section, or control and focus on the first focusable element.

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* @alias wp.customize~focus

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* @since 4.1.0

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* @param {Object} [params]

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* @param {Function} [params.completeCallback]

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focus = function ( params ) {

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var construct, completeCallback, focus, focusElement, sections;

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construct = this;

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params = params || {};

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focus = function () {

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// If a child section is currently expanded, collapse it.

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if ( construct.extended( api.Panel ) ) {

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sections = construct.sections();

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if ( 1 < sections.length ) {

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sections.forEach( function ( section ) {

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if ( section.expanded() ) {

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section.collapse();

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}

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} );

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}

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}

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var focusContainer;

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if ( ( construct.extended( api.Panel ) || construct.extended( api.Section ) ) && construct.expanded && construct.expanded() ) {

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focusContainer = construct.contentContainer;

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} else {

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focusContainer = construct.container;

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}

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focusElement = focusContainer.find( '.control-focus:first' );

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if ( 0 === focusElement.length ) {

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// Note that we can't use :focusable due to a jQuery UI issue. See: https://github.com/jquery/jquery-ui/pull/1583

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focusElement = focusContainer.find( 'input, select, textarea, button, object, a[href], [tabindex]' ).filter( ':visible' ).first();

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}

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focusElement.focus();

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};

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if ( params.completeCallback ) {

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completeCallback = params.completeCallback;

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params.completeCallback = function () {

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focus();

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completeCallback();

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};

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} else {

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params.completeCallback = focus;

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}

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api.state( 'paneVisible' ).set( true );

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if ( construct.expand ) {

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construct.expand( params );

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} else {

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params.completeCallback();

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}

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};

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/**

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* Stable sort for Panels, Sections, and Controls.

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* If a.priority() === b.priority(), then sort by their respective params.instanceNumber.

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* @alias wp.customize.utils.prioritySort

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* @since 4.1.0

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* @param {(wp.customize.Panel|wp.customize.Section|wp.customize.Control)} a

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* @param {(wp.customize.Panel|wp.customize.Section|wp.customize.Control)} b

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* @return {number}

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api.utils.prioritySort = function ( a, b ) {

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if ( a.priority() === b.priority() && typeof a.params.instanceNumber === 'number' && typeof b.params.instanceNumber === 'number' ) {

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return a.params.instanceNumber - b.params.instanceNumber;

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} else {

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return a.priority() - b.priority();

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}

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};

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/**

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* Return whether the supplied Event object is for a keydown event but not the Enter key.

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* @alias wp.customize.utils.isKeydownButNotEnterEvent

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* @since 4.1.0

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* @param {jQuery.Event} event

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* @return {boolean}

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api.utils.isKeydownButNotEnterEvent = function ( event ) {

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return ( 'keydown' === event.type && 13 !== event.which );

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};

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/**

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* Return whether the two lists of elements are the same and are in the same order.

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* @alias wp.customize.utils.areElementListsEqual

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* @since 4.1.0

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* @param {Array|jQuery} listA

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* @param {Array|jQuery} listB

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* @return {boolean}

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api.utils.areElementListsEqual = function ( listA, listB ) {

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var equal = (

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listA.length === listB.length && // If lists are different lengths, then naturally they are not equal.

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-1 === _.indexOf( _.map( // Are there any false values in the list returned by map?

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_.zip( listA, listB ), // Pair up each element between the two lists.

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function ( pair ) {

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return $( pair[0] ).is( pair[1] ); // Compare to see if each pair is equal.

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}

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), false ) // Check for presence of false in map's return value.

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);

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return equal;

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};

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/**

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* Highlight the existence of a button.

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* This function reminds the user of a button represented by the specified

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* UI element, after an optional delay. If the user focuses the element

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* before the delay passes, the reminder is canceled.

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* @alias wp.customize.utils.highlightButton

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* @since 4.9.0

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* @param {jQuery} button - The element to highlight.

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* @param {Object} [options] - Options.

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* @param {number} [options.delay=0] - Delay in milliseconds.

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* @param {jQuery} [options.focusTarget] - A target for user focus that defaults to the highlighted element.

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* If the user focuses the target before the delay passes, the reminder

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* is canceled. This option exists to accommodate compound buttons

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* containing auxiliary UI, such as the Publish button augmented with a

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* Settings button.

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* @return {Function} An idempotent function that cancels the reminder.

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api.utils.highlightButton = function highlightButton( button, options ) {

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var animationClass = 'button-see-me',

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canceled = false,

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params;

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params = _.extend(

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{

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delay: 0,

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focusTarget: button

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options

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);

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function cancelReminder() {

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canceled = true;

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}

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params.focusTarget.on( 'focusin', cancelReminder );

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setTimeout( function() {

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params.focusTarget.off( 'focusin', cancelReminder );

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if ( ! canceled ) {

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button.addClass( animationClass );

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button.one( 'animationend', function() {

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* Remove animation class to avoid situations in Customizer where

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* DOM nodes are moved (re-inserted) and the animation repeats.

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[852] Fix | Delete

button.removeClass( animationClass );

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} );

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}

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}, params.delay );

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return cancelReminder;

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};

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[860] Fix | Delete

/**

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* Get current timestamp adjusted for server clock time.

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[863] Fix | Delete

* Same functionality as the `current_time( 'mysql', false )` function in PHP.

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* @alias wp.customize.utils.getCurrentTimestamp

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* @since 4.9.0

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* @return {number} Current timestamp.

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api.utils.getCurrentTimestamp = function getCurrentTimestamp() {

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var currentDate, currentClientTimestamp, timestampDifferential;

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currentClientTimestamp = _.now();

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currentDate = new Date( api.settings.initialServerDate.replace( /-/g, '/' ) );

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timestampDifferential = currentClientTimestamp - api.settings.initialClientTimestamp;

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timestampDifferential += api.settings.initialClientTimestamp - api.settings.initialServerTimestamp;

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currentDate.setTime( currentDate.getTime() + timestampDifferential );

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return currentDate.getTime();

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};

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[881] Fix | Delete

/**

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* Get remaining time of when the date is set.

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[884] Fix | Delete

* @alias wp.customize.utils.getRemainingTime

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* @since 4.9.0

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* @param {string|number|Date} datetime - Date time or timestamp of the future date.

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* @return {number} remainingTime - Remaining time in milliseconds.

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api.utils.getRemainingTime = function getRemainingTime( datetime ) {

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var millisecondsDivider = 1000, remainingTime, timestamp;

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if ( datetime instanceof Date ) {

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timestamp = datetime.getTime();

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} else if ( 'string' === typeof datetime ) {

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timestamp = ( new Date( datetime.replace( /-/g, '/' ) ) ).getTime();

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} else {

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timestamp = datetime;

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}

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remainingTime = timestamp - api.utils.getCurrentTimestamp();

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remainingTime = Math.ceil( remainingTime / millisecondsDivider );

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return remainingTime;

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};

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[906] Fix | Delete

/**

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* Return browser supported `transitionend` event name.

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[909] Fix | Delete

* @since 4.7.0

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[911] Fix | Delete

* @ignore

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* @return {string|null} Normalized `transitionend` event name or null if CSS transitions are not supported.

[914] Fix | Delete

[915] Fix | Delete

normalizedTransitionendEventName = (function () {

[916] Fix | Delete

var el, transitions, prop;

[917] Fix | Delete

el = document.createElement( 'div' );

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transitions = {

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'transition' : 'transitionend',

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'OTransition' : 'oTransitionEnd',

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'MozTransition' : 'transitionend',

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'WebkitTransition': 'webkitTransitionEnd'

[923] Fix | Delete

};

[924] Fix | Delete

prop = _.find( _.keys( transitions ), function( prop ) {

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return ! _.isUndefined( el.style[ prop ] );

[926] Fix | Delete

} );

[927] Fix | Delete

if ( prop ) {

[928] Fix | Delete

return transitions[ prop ];

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} else {

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return null;

[931] Fix | Delete

}

[932] Fix | Delete

})();

[933] Fix | Delete

[934] Fix | Delete

Container = api.Class.extend(/** @lends wp.customize~Container.prototype */{

[935] Fix | Delete

defaultActiveArguments: { duration: 'fast', completeCallback: $.noop },

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defaultExpandedArguments: { duration: 'fast', completeCallback: $.noop },

[937] Fix | Delete

containerType: 'container',

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defaults: {

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title: '',

[940] Fix | Delete

description: '',

[941] Fix | Delete

priority: 100,

[942] Fix | Delete

type: 'default',

[943] Fix | Delete

content: null,

[944] Fix | Delete

active: true,

[945] Fix | Delete

instanceNumber: null

[946] Fix | Delete

[947] Fix | Delete

[948] Fix | Delete

/**

[949] Fix | Delete

* Base class for Panel and Section.

[950] Fix | Delete

[951] Fix | Delete

* @constructs wp.customize~Container

[952] Fix | Delete

* @augments wp.customize.Class

[953] Fix | Delete

[954] Fix | Delete

* @since 4.1.0

[955] Fix | Delete

[956] Fix | Delete

* @borrows wp.customize~focus as focus

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[958] Fix | Delete

* @param {string} id - The ID for the container.

[959] Fix | Delete

* @param {Object} options - Object containing one property: params.

[960] Fix | Delete

* @param {string} options.title - Title shown when panel is collapsed and expanded.

[961] Fix | Delete

* @param {string} [options.description] - Description shown at the top of the panel.

[962] Fix | Delete

* @param {number} [options.priority=100] - The sort priority for the panel.

[963] Fix | Delete

* @param {string} [options.templateId] - Template selector for container.

[964] Fix | Delete

* @param {string} [options.type=default] - The type of the panel. See wp.customize.panelConstructor.

[965] Fix | Delete

* @param {string} [options.content] - The markup to be used for the panel container. If empty, a JS template is used.

[966] Fix | Delete

* @param {boolean} [options.active=true] - Whether the panel is active or not.

[967] Fix | Delete

* @param {Object} [options.params] - Deprecated wrapper for the above properties.

[968] Fix | Delete

[969] Fix | Delete

initialize: function ( id, options ) {

[970] Fix | Delete

var container = this;

[971] Fix | Delete

container.id = id;

[972] Fix | Delete

[973] Fix | Delete

if ( ! Container.instanceCounter ) {

[974] Fix | Delete

Container.instanceCounter = 0;

[975] Fix | Delete

}

[976] Fix | Delete

Container.instanceCounter++;

[977] Fix | Delete

[978] Fix | Delete

$.extend( container, {

[979] Fix | Delete

params: _.defaults(

[980] Fix | Delete

options.params || options, // Passing the params is deprecated.

[981] Fix | Delete

container.defaults

[982] Fix | Delete

)

[983] Fix | Delete

} );

[984] Fix | Delete

if ( ! container.params.instanceNumber ) {

[985] Fix | Delete

container.params.instanceNumber = Container.instanceCounter;

[986] Fix | Delete

}

[987] Fix | Delete

container.notifications = new api.Notifications();

[988] Fix | Delete

container.templateSelector = container.params.templateId || 'customize-' + container.containerType + '-' + container.params.type;

[989] Fix | Delete

container.container = $( container.params.content );

[990] Fix | Delete

if ( 0 === container.container.length ) {

[991] Fix | Delete

container.container = $( container.getContainer() );

[992] Fix | Delete

}

[993] Fix | Delete

container.headContainer = container.container;

[994] Fix | Delete

container.contentContainer = container.getContent();

[995] Fix | Delete

container.container = container.container.add( container.contentContainer );

[996] Fix | Delete

[997] Fix | Delete

container.deferred = {

[998] Fix | Delete

embedded: new $.Deferred()

[999] Fix | Delete

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