/**

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* @output wp-includes/js/customize-views.js

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*/

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(function( $, wp, _ ) {

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if ( ! wp || ! wp.customize ) { return; }

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var api = wp.customize;

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/**

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* wp.customize.HeaderTool.CurrentView

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*

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* Displays the currently selected header image, or a placeholder in lack

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* thereof.

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*

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* Instantiate with model wp.customize.HeaderTool.currentHeader.

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*

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* @memberOf wp.customize.HeaderTool

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* @alias wp.customize.HeaderTool.CurrentView

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*

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* @constructor

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* @augments wp.Backbone.View

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*/

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api.HeaderTool.CurrentView = wp.Backbone.View.extend(/** @lends wp.customize.HeaderTool.CurrentView.prototype */{

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template: wp.template('header-current'),

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initialize: function() {

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this.listenTo(this.model, 'change', this.render);

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this.render();

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},

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render: function() {

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this.$el.html(this.template(this.model.toJSON()));

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this.setButtons();

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return this;

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},

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setButtons: function() {

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var elements = $('#customize-control-header_image .actions .remove');

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if (this.model.get('choice')) {

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elements.show();

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} else {

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elements.hide();

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}

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}

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});

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/**

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* wp.customize.HeaderTool.ChoiceView

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*

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* Represents a choosable header image, be it user-uploaded,

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* theme-suggested or a special Randomize choice.

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*

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* Takes a wp.customize.HeaderTool.ImageModel.

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*

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* Manually changes model wp.customize.HeaderTool.currentHeader via the

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* `select` method.

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*

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* @memberOf wp.customize.HeaderTool

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* @alias wp.customize.HeaderTool.ChoiceView

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*

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* @constructor

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* @augments wp.Backbone.View

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*/

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api.HeaderTool.ChoiceView = wp.Backbone.View.extend(/** @lends wp.customize.HeaderTool.ChoiceView.prototype */{

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template: wp.template('header-choice'),

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className: 'header-view',

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events: {

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'click .choice,.random': 'select',

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'click .close': 'removeImage'

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},

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initialize: function() {

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var properties = [

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this.model.get('header').url,

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this.model.get('choice')

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];

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this.listenTo(this.model, 'change:selected', this.toggleSelected);

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if (_.contains(properties, api.get().header_image)) {

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api.HeaderTool.currentHeader.set(this.extendedModel());

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}

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},

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render: function() {

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this.$el.html(this.template(this.extendedModel()));

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this.toggleSelected();

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return this;

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},

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toggleSelected: function() {

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this.$el.toggleClass('selected', this.model.get('selected'));

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},

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extendedModel: function() {

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var c = this.model.get('collection');

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return _.extend(this.model.toJSON(), {

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type: c.type

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});

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},

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select: function() {

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this.preventJump();

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this.model.save();

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api.HeaderTool.currentHeader.set(this.extendedModel());

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},

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preventJump: function() {

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var container = $('.wp-full-overlay-sidebar-content'),

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scroll = container.scrollTop();

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_.defer(function() {

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container.scrollTop(scroll);

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});

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},

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removeImage: function(e) {

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e.stopPropagation();

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this.model.destroy();

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this.remove();

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}

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});

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/**

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* wp.customize.HeaderTool.ChoiceListView

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*

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* A container for ChoiceViews. These choices should be of one same type:

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* user-uploaded headers or theme-defined ones.

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*

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* Takes a wp.customize.HeaderTool.ChoiceList.

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*

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* @memberOf wp.customize.HeaderTool

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* @alias wp.customize.HeaderTool.ChoiceListView

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*

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* @constructor

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* @augments wp.Backbone.View

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*/

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api.HeaderTool.ChoiceListView = wp.Backbone.View.extend(/** @lends wp.customize.HeaderTool.ChoiceListView.prototype */{

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initialize: function() {

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this.listenTo(this.collection, 'add', this.addOne);

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this.listenTo(this.collection, 'remove', this.render);

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this.listenTo(this.collection, 'sort', this.render);

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this.listenTo(this.collection, 'change', this.toggleList);

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this.render();

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},

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render: function() {

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this.$el.empty();

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this.collection.each(this.addOne, this);

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this.toggleList();

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},

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addOne: function(choice) {

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var view;

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choice.set({ collection: this.collection });

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view = new api.HeaderTool.ChoiceView({ model: choice });

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this.$el.append(view.render().el);

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},

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toggleList: function() {

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var title = this.$el.parents().prev('.customize-control-title'),

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randomButton = this.$el.find('.random').parent();

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if (this.collection.shouldHideTitle()) {

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title.add(randomButton).hide();

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} else {

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title.add(randomButton).show();

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}

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}

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});

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/**

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* wp.customize.HeaderTool.CombinedList

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*

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* Aggregates wp.customize.HeaderTool.ChoiceList collections (or any

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* Backbone object, really) and acts as a bus to feed them events.

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*

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* @memberOf wp.customize.HeaderTool

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* @alias wp.customize.HeaderTool.CombinedList

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*

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* @constructor

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* @augments wp.Backbone.View

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*/

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api.HeaderTool.CombinedList = wp.Backbone.View.extend(/** @lends wp.customize.HeaderTool.CombinedList.prototype */{

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initialize: function(collections) {

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this.collections = collections;

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this.on('all', this.propagate, this);

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},

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propagate: function(event, arg) {

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_.each(this.collections, function(collection) {

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collection.trigger(event, arg);

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});

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}

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});

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})( jQuery, window.wp, _ );

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