/**
 * @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));