/**

 * @output wp-admin/js/custom-header.js

 */

/* global isRtl */

/**

 * Initializes the custom header selection page.

 *

 * @since 3.5.0

 *

 * @deprecated 4.1.0 The page this is used on is never linked to from the UI.

 *             Setting a custom header is completely handled by the Customizer.

 */

(function($) {

	var frame;

	$( function() {

		// Fetch available headers.

		var $headers = $('.available-headers');

		// Apply jQuery.masonry once the images have loaded.

		$headers.imagesLoaded( function() {

			$headers.masonry({

				itemSelector: '.default-header',

				isRTL: !! ( 'undefined' != typeof isRtl && isRtl )

			});

		});

		/**

		 * Opens the 'choose from library' frame and creates it if it doesn't exist.

		 *

		 * @since 3.5.0

		 * @deprecated 4.1.0

		 *

		 * @return {void}

		 */

		$('#choose-from-library-link').on( 'click', function( event ) {

			var $el = $(this);

			event.preventDefault();

			// If the media frame already exists, reopen it.

			if ( frame ) {

				frame.open();

				return;

			}

			// Create the media frame.

			frame = wp.media.frames.customHeader = wp.media({

				// Set the title of the modal.

				title: $el.data('choose'),

				// Tell the modal to show only images.

				library: {

					type: 'image'

				},

				// Customize the submit button.

				button: {

					// Set the text of the button.

					text: $el.data('update'),

					// Tell the button not to close the modal, since we're

					// going to refresh the page when the image is selected.

					close: false

				}

			});

			/**

			 * Updates the window location to include the selected attachment.

			 *

			 * @since 3.5.0

			 * @deprecated 4.1.0

			 *

			 * @return {void}

			 */

			frame.on( 'select', function() {

				// Grab the selected attachment.

				var attachment = frame.state().get('selection').first(),

					link = $el.data('updateLink');

				// Tell the browser to navigate to the crop step.

				window.location = link + '&file=' + attachment.id;

			});

			frame.open();

		});

	});

}(jQuery));