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/**
 * Contains the postboxes logic, opening and closing postboxes, reordering and saving
 * the state and ordering to the database.
 *
 * @since 2.5.0
 * @requires jQuery
 * @output wp-admin/js/postbox.js
 */

/* global ajaxurl, postboxes */

(function($) {
	var $document = $( document ),
		__ = wp.i18n.__;

	/**
	 * This object contains all function to handle the behavior of the post boxes. The post boxes are the boxes you see
	 * around the content on the edit page.
	 *
	 * @since 2.7.0
	 *
	 * @namespace postboxes
	 *
	 * @type {Object}
	 */
	window.postboxes = {

		/**
		 * Handles a click on either the postbox heading or the postbox open/close icon.
		 *
		 * Opens or closes the postbox. Expects `this` to equal the clicked element.
		 * Calls postboxes.pbshow if the postbox has been opened, calls postboxes.pbhide
		 * if the postbox has been closed.
		 *
		 * @since 4.4.0
		 *
		 * @memberof postboxes
		 *
		 * @fires postboxes#postbox-toggled
		 *
		 * @return {void}
		 */
		handle_click : function () {
			var $el = $( this ),
				p = $el.closest( '.postbox' ),
				id = p.attr( 'id' ),
				ariaExpandedValue;

			if ( 'dashboard_browser_nag' === id ) {
				return;
			}

			p.toggleClass( 'closed' );
			ariaExpandedValue = ! p.hasClass( 'closed' );

			if ( $el.hasClass( 'handlediv' ) ) {
				// The handle button was clicked.
				$el.attr( 'aria-expanded', ariaExpandedValue );
			} else {
				// The handle heading was clicked.
				$el.closest( '.postbox' ).find( 'button.handlediv' )
					.attr( 'aria-expanded', ariaExpandedValue );
			}

			if ( postboxes.page !== 'press-this' ) {
				postboxes.save_state( postboxes.page );
			}

			if ( id ) {
				if ( !p.hasClass('closed') && typeof postboxes.pbshow === 'function' ) {
					postboxes.pbshow( id );
				} else if ( p.hasClass('closed') && typeof postboxes.pbhide === 'function' ) {
					postboxes.pbhide( id );
				}
			}

			/**
			 * Fires when a postbox has been opened or closed.
			 *
			 * Contains a jQuery object with the relevant postbox element.
			 *
			 * @since 4.0.0
			 * @ignore
			 *
			 * @event postboxes#postbox-toggled
			 * @type {Object}
			 */
			$document.trigger( 'postbox-toggled', p );
		},

		/**
		 * Handles clicks on the move up/down buttons.
		 *
		 * @since 5.5.0
		 *
		 * @return {void}
		 */
		handleOrder: function() {
			var button = $( this ),
				postbox = button.closest( '.postbox' ),
				postboxId = postbox.attr( 'id' ),
				postboxesWithinSortables = postbox.closest( '.meta-box-sortables' ).find( '.postbox:visible' ),
				postboxesWithinSortablesCount = postboxesWithinSortables.length,
				postboxWithinSortablesIndex = postboxesWithinSortables.index( postbox ),
				firstOrLastPositionMessage;

			if ( 'dashboard_browser_nag' === postboxId ) {
				return;
			}

			// If on the first or last position, do nothing and send an audible message to screen reader users.
			if ( 'true' === button.attr( 'aria-disabled' ) ) {
				firstOrLastPositionMessage = button.hasClass( 'handle-order-higher' ) ?
					__( 'The box is on the first position' ) :
					__( 'The box is on the last position' );

				wp.a11y.speak( firstOrLastPositionMessage );
				return;
			}

			// Move a postbox up.
			if ( button.hasClass( 'handle-order-higher' ) ) {
				// If the box is first within a sortable area, move it to the previous sortable area.
				if ( 0 === postboxWithinSortablesIndex ) {
					postboxes.handleOrderBetweenSortables( 'previous', button, postbox );
					return;
				}

				postbox.prevAll( '.postbox:visible' ).eq( 0 ).before( postbox );
				button.trigger( 'focus' );
				postboxes.updateOrderButtonsProperties();
				postboxes.save_order( postboxes.page );
			}

			// Move a postbox down.
			if ( button.hasClass( 'handle-order-lower' ) ) {
				// If the box is last within a sortable area, move it to the next sortable area.
				if ( postboxWithinSortablesIndex + 1 === postboxesWithinSortablesCount ) {
					postboxes.handleOrderBetweenSortables( 'next', button, postbox );
					return;
				}

				postbox.nextAll( '.postbox:visible' ).eq( 0 ).after( postbox );
				button.trigger( 'focus' );
				postboxes.updateOrderButtonsProperties();
				postboxes.save_order( postboxes.page );
			}

		},

		/**
		 * Moves postboxes between the sortables areas.
		 *
		 * @since 5.5.0
		 *
		 * @param {string} position The "previous" or "next" sortables area.
		 * @param {Object} button   The jQuery object representing the button that was clicked.
		 * @param {Object} postbox  The jQuery object representing the postbox to be moved.
		 *
		 * @return {void}
		 */
		handleOrderBetweenSortables: function( position, button, postbox ) {
			var closestSortablesId = button.closest( '.meta-box-sortables' ).attr( 'id' ),
				sortablesIds = [],
				sortablesIndex,
				detachedPostbox;

			// Get the list of sortables within the page.
			$( '.meta-box-sortables:visible' ).each( function() {
				sortablesIds.push( $( this ).attr( 'id' ) );
			});

			// Return if there's only one visible sortables area, e.g. in the block editor page.
			if ( 1 === sortablesIds.length ) {
				return;
			}

			// Find the index of the current sortables area within all the sortable areas.
			sortablesIndex = $.inArray( closestSortablesId, sortablesIds );
			// Detach the postbox to be moved.
			detachedPostbox = postbox.detach();

			// Move the detached postbox to its new position.
			if ( 'previous' === position ) {
				$( detachedPostbox ).appendTo( '#' + sortablesIds[ sortablesIndex - 1 ] );
			}

			if ( 'next' === position ) {
				$( detachedPostbox ).prependTo( '#' + sortablesIds[ sortablesIndex + 1 ] );
			}

			postboxes._mark_area();
			button.focus();
			postboxes.updateOrderButtonsProperties();
			postboxes.save_order( postboxes.page );
		},

		/**
		 * Update the move buttons properties depending on the postbox position.
		 *
		 * @since 5.5.0
		 *
		 * @return {void}
		 */
		updateOrderButtonsProperties: function() {
			var firstSortablesId = $( '.meta-box-sortables:visible:first' ).attr( 'id' ),
				lastSortablesId = $( '.meta-box-sortables:visible:last' ).attr( 'id' ),
				firstPostbox = $( '.postbox:visible:first' ),
				lastPostbox = $( '.postbox:visible:last' ),
				firstPostboxId = firstPostbox.attr( 'id' ),
				lastPostboxId = lastPostbox.attr( 'id' ),
				firstPostboxSortablesId = firstPostbox.closest( '.meta-box-sortables' ).attr( 'id' ),
				lastPostboxSortablesId = lastPostbox.closest( '.meta-box-sortables' ).attr( 'id' ),
				moveUpButtons = $( '.handle-order-higher' ),
				moveDownButtons = $( '.handle-order-lower' );

			// Enable all buttons as a reset first.
			moveUpButtons
				.attr( 'aria-disabled', 'false' )
				.removeClass( 'hidden' );
			moveDownButtons
				.attr( 'aria-disabled', 'false' )
				.removeClass( 'hidden' );

			// When there's only one "sortables" area (e.g. in the block editor) and only one visible postbox, hide the buttons.
			if ( firstSortablesId === lastSortablesId && firstPostboxId === lastPostboxId ) {
				moveUpButtons.addClass( 'hidden' );
				moveDownButtons.addClass( 'hidden' );
			}

			// Set an aria-disabled=true attribute on the first visible "move" buttons.
			if ( firstSortablesId === firstPostboxSortablesId ) {
				$( firstPostbox ).find( '.handle-order-higher' ).attr( 'aria-disabled', 'true' );
			}

			// Set an aria-disabled=true attribute on the last visible "move" buttons.
			if ( lastSortablesId === lastPostboxSortablesId ) {
				$( '.postbox:visible .handle-order-lower' ).last().attr( 'aria-disabled', 'true' );
			}
		},

		/**
		 * Adds event handlers to all postboxes and screen option on the current page.
		 *
		 * @since 2.7.0
		 *
		 * @memberof postboxes
		 *
		 * @param {string} page The page we are currently on.
		 * @param {Object} [args]
		 * @param {Function} args.pbshow A callback that is called when a postbox opens.
		 * @param {Function} args.pbhide A callback that is called when a postbox closes.
		 * @return {void}
		 */
		add_postbox_toggles : function (page, args) {
			var $handles = $( '.postbox .hndle, .postbox .handlediv' ),
				$orderButtons = $( '.postbox .handle-order-higher, .postbox .handle-order-lower' );

			this.page = page;
			this.init( page, args );

			$handles.on( 'click.postboxes', this.handle_click );

			// Handle the order of the postboxes.
			$orderButtons.on( 'click.postboxes', this.handleOrder );

			/**
			 * @since 2.7.0
			 */
			$('.postbox .hndle a').on( 'click', function(e) {
				e.stopPropagation();
			});

			/**
			 * Hides a postbox.
			 *
			 * Event handler for the postbox dismiss button. After clicking the button
			 * the postbox will be hidden.
			 *
			 * As of WordPress 5.5, this is only used for the browser update nag.
			 *
			 * @since 3.2.0
			 *
			 * @return {void}
			 */
			$( '.postbox a.dismiss' ).on( 'click.postboxes', function( e ) {
				var hide_id = $(this).parents('.postbox').attr('id') + '-hide';
				e.preventDefault();
				$( '#' + hide_id ).prop('checked', false).triggerHandler('click');
			});

			/**
			 * Hides the postbox element
			 *
			 * Event handler for the screen options checkboxes. When a checkbox is
			 * clicked this function will hide or show the relevant postboxes.
			 *
			 * @since 2.7.0
			 * @ignore
			 *
			 * @fires postboxes#postbox-toggled
			 *
			 * @return {void}
			 */
			$('.hide-postbox-tog').on('click.postboxes', function() {
				var $el = $(this),
					boxId = $el.val(),
					$postbox = $( '#' + boxId );

				if ( $el.prop( 'checked' ) ) {
					$postbox.show();
					if ( typeof postboxes.pbshow === 'function' ) {
						postboxes.pbshow( boxId );
					}
				} else {
					$postbox.hide();
					if ( typeof postboxes.pbhide === 'function' ) {
						postboxes.pbhide( boxId );
					}
				}

				postboxes.save_state( page );
				postboxes._mark_area();

				/**
				 * @since 4.0.0
				 * @see postboxes.handle_click
				 */
				$document.trigger( 'postbox-toggled', $postbox );
			});

			/**
			 * Changes the amount of columns based on the layout preferences.
			 *
			 * @since 2.8.0
			 *
			 * @return {void}
			 */
			$('.columns-prefs input[type="radio"]').on('click.postboxes', function(){
				var n = parseInt($(this).val(), 10);

				if ( n ) {
					postboxes._pb_edit(n);
					postboxes.save_order( page );
				}
			});
		},

		/**
		 * Initializes all the postboxes, mainly their sortable behavior.
		 *
		 * @since 2.7.0
		 *
		 * @memberof postboxes
		 *
		 * @param {string} page The page we are currently on.
		 * @param {Object} [args={}] The arguments for the postbox initializer.
		 * @param {Function} args.pbshow A callback that is called when a postbox opens.
		 * @param {Function} args.pbhide A callback that is called when a postbox
		 *                               closes.
		 *
		 * @return {void}
		 */
		init : function(page, args) {
			var isMobile = $( document.body ).hasClass( 'mobile' ),
				$handleButtons = $( '.postbox .handlediv' );

			$.extend( this, args || {} );
			$('.meta-box-sortables').sortable({
				placeholder: 'sortable-placeholder',
				connectWith: '.meta-box-sortables',
				items: '.postbox',
				handle: '.hndle',
				cursor: 'move',
				delay: ( isMobile ? 200 : 0 ),
				distance: 2,
				tolerance: 'pointer',
				forcePlaceholderSize: true,
				helper: function( event, element ) {
					/* `helper: 'clone'` is equivalent to `return element.clone();`
					 * Cloning a checked radio and then inserting that clone next to the original
					 * radio unchecks the original radio (since only one of the two can be checked).
					 * We get around this by renaming the helper's inputs' name attributes so that,
					 * when the helper is inserted into the DOM for the sortable, no radios are
					 * duplicated, and no original radio gets unchecked.
					 */
					return element.clone()
						.find( ':input' )
							.attr( 'name', function( i, currentName ) {
								return 'sort_' + parseInt( Math.random() * 100000, 10 ).toString() + '_' + currentName;
							} )
						.end();
				},
				opacity: 0.65,
				start: function() {
					$( 'body' ).addClass( 'is-dragging-metaboxes' );
					// Refresh the cached positions of all the sortable items so that the min-height set while dragging works.
					$( '.meta-box-sortables' ).sortable( 'refreshPositions' );
				},
				stop: function() {
					var $el = $( this );

					$( 'body' ).removeClass( 'is-dragging-metaboxes' );

					if ( $el.find( '#dashboard_browser_nag' ).is( ':visible' ) && 'dashboard_browser_nag' != this.firstChild.id ) {
						$el.sortable('cancel');
						return;
					}

					postboxes.updateOrderButtonsProperties();
					postboxes.save_order(page);
				},
				receive: function(e,ui) {
					if ( 'dashboard_browser_nag' == ui.item[0].id )
						$(ui.sender).sortable('cancel');

					postboxes._mark_area();
					$document.trigger( 'postbox-moved', ui.item );
				}
			});

			if ( isMobile ) {
				$(document.body).on('orientationchange.postboxes', function(){ postboxes._pb_change(); });
				this._pb_change();
			}

			this._mark_area();

			// Update the "move" buttons properties.
			this.updateOrderButtonsProperties();
			$document.on( 'postbox-toggled', this.updateOrderButtonsProperties );

			// Set the handle buttons `aria-expanded` attribute initial value on page load.
			$handleButtons.each( function () {
				var $el = $( this );
				$el.attr( 'aria-expanded', ! $el.closest( '.postbox' ).hasClass( 'closed' ) );
			});
		},

		/**
		 * Saves the state of the postboxes to the server.
		 *
		 * It sends two lists, one with all the closed postboxes, one with all the
		 * hidden postboxes.
		 *
		 * @since 2.7.0
		 *
		 * @memberof postboxes
		 *
		 * @param {string} page The page we are currently on.
		 * @return {void}
		 */
		save_state : function(page) {
			var closed, hidden;

			// Return on the nav-menus.php screen, see #35112.
			if ( 'nav-menus' === page ) {
				return;
			}

			closed = $( '.postbox' ).filter( '.closed' ).map( function() { return this.id; } ).get().join( ',' );
			hidden = $( '.postbox' ).filter( ':hidden' ).map( function() { return this.id; } ).get().join( ',' );

			$.post(
				ajaxurl,
				{
					action: 'closed-postboxes',
					closed: closed,
					hidden: hidden,
					closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
					page: page
				},
				function() {
					wp.a11y.speak( __( 'Screen Options updated.' ) );
				}
			);
		},

		/**
		 * Saves the order of the postboxes to the server.
		 *
		 * Sends a list of all postboxes inside a sortable area to the server.
		 *
		 * @since 2.8.0
		 *
		 * @memberof postboxes
		 *
		 * @param {string} page The page we are currently on.
		 * @return {void}
		 */
		save_order : function(page) {
			var postVars, page_columns = $('.columns-prefs input:checked').val() || 0;

			postVars = {
				action: 'meta-box-order',
				_ajax_nonce: $('#meta-box-order-nonce').val(),
				page_columns: page_columns,
				page: page
			};

			$('.meta-box-sortables').each( function() {
				postVars[ 'order[' + this.id.split( '-' )[0] + ']' ] = $( this ).sortable( 'toArray' ).join( ',' );
			} );

			$.post(
				ajaxurl,
				postVars,
				function( response ) {
					if ( response.success ) {
						wp.a11y.speak( __( 'The boxes order has been saved.' ) );
					}
				}
			);
		},

		/**
		 * Marks empty postbox areas.
		 *
		 * Adds a message to empty sortable areas on the dashboard page. Also adds a
		 * border around the side area on the post edit screen if there are no postboxes
		 * present.
		 *
		 * @since 3.3.0
		 * @access private
		 *
		 * @memberof postboxes
		 *
		 * @return {void}
		 */
		_mark_area : function() {
			var visible = $( 'div.postbox:visible' ).length,
				visibleSortables = $( '#dashboard-widgets .meta-box-sortables:visible, #post-body .meta-box-sortables:visible' ),
				areAllVisibleSortablesEmpty = true;

			visibleSortables.each( function() {
				var t = $(this);

				if ( visible == 1 || t.children( '.postbox:visible' ).length ) {
					t.removeClass('empty-container');
					areAllVisibleSortablesEmpty = false;
				}
				else {
					t.addClass('empty-container');
				}
			});

			postboxes.updateEmptySortablesText( visibleSortables, areAllVisibleSortablesEmpty );
		},

		/**
		 * Updates the text for the empty sortable areas on the Dashboard.
		 *
		 * @since 5.5.0
		 *
		 * @param {Object}  visibleSortables            The jQuery object representing the visible sortable areas.
		 * @param {boolean} areAllVisibleSortablesEmpty Whether all the visible sortable areas are "empty".
		 *
		 * @return {void}
		 */
		updateEmptySortablesText: function( visibleSortables, areAllVisibleSortablesEmpty ) {
			var isDashboard = $( '#dashboard-widgets' ).length,
				emptySortableText = areAllVisibleSortablesEmpty ?  __( 'Add boxes from the Screen Options menu' ) : __( 'Drag boxes here' );

			if ( ! isDashboard ) {
				return;
			}

			visibleSortables.each( function() {
				if ( $( this ).hasClass( 'empty-container' ) ) {
					$( this ).attr( 'data-emptyString', emptySortableText );
				}
			} );
		},

		/**
		 * Changes the amount of columns on the post edit page.
		 *
		 * @since 3.3.0
		 * @access private
		 *
		 * @memberof postboxes
		 *
		 * @fires postboxes#postboxes-columnchange
		 *
		 * @param {number} n The amount of columns to divide the post edit page in.
		 * @return {void}
		 */
		_pb_edit : function(n) {
			var el = $('.metabox-holder').get(0);

			if ( el ) {
				el.className = el.className.replace(/columns-\d+/, 'columns-' + n);
			}

			/**
			 * Fires when the amount of columns on the post edit page has been changed.
			 *
			 * @since 4.0.0
			 * @ignore
			 *
			 * @event postboxes#postboxes-columnchange
			 */
			$( document ).trigger( 'postboxes-columnchange' );
		},

		/**
		 * Changes the amount of columns the postboxes are in based on the current
		 * orientation of the browser.
		 *
		 * @since 3.3.0
		 * @access private
		 *
		 * @memberof postboxes
		 *
		 * @return {void}
		 */
		_pb_change : function() {
			var check = $( 'label.columns-prefs-1 input[type="radio"]' );

			switch ( window.orientation ) {
				case 90:
				case -90:
					if ( !check.length || !check.is(':checked') )
						this._pb_edit(2);
					break;
				case 0:
				case 180:
					if ( $( '#poststuff' ).length ) {
						this._pb_edit(1);
					} else {
						if ( !check.length || !check.is(':checked') )
							this._pb_edit(2);
					}
					break;
			}
		},

		/* Callbacks */

		/**
		 * @since 2.7.0
		 * @access public
		 *
		 * @property {Function|boolean} pbshow A callback that is called when a postbox
		 *                                     is opened.
		 * @memberof postboxes
		 */
		pbshow : false,

		/**
		 * @since 2.7.0
		 * @access public
		 * @property {Function|boolean} pbhide A callback that is called when a postbox
		 *                                     is closed.
		 * @memberof postboxes
		 */
		pbhide : false
	};

}(jQuery));
/**
 * @output wp-admin/js/custom-background.js
 */

/* global ajaxurl */

/**
 * Registers all events for customizing the background.
 *
 * @since 3.0.0
 *
 * @requires jQuery
 */
(function($) {
	$( function() {
		var frame,
			bgImage = $( '#custom-background-image' );

		/**
		 * Instantiates the WordPress color picker and binds the change and clear events.
		 *
		 * @since 3.5.0
		 *
		 * @return {void}
		 */
		$('#background-color').wpColorPicker({
			change: function( event, ui ) {
				bgImage.css('background-color', ui.color.toString());
			},
			clear: function() {
				bgImage.css('background-color', '');
			}
		});

		/**
		 * Alters the background size CSS property whenever the background size input has changed.
		 *
		 * @since 4.7.0
		 *
		 * @return {void}
		 */
		$( 'select[name="background-size"]' ).on( 'change', function() {
			bgImage.css( 'background-size', $( this ).val() );
		});

		/**
		 * Alters the background position CSS property whenever the background position input has changed.
		 *
		 * @since 4.7.0
		 *
		 * @return {void}
		 */
		$( 'input[name="background-position"]' ).on( 'change', function() {
			bgImage.css( 'background-position', $( this ).val() );
		});

		/**
		 * Alters the background repeat CSS property whenever the background repeat input has changed.
		 *
		 * @since 3.0.0
		 *
		 * @return {void}
		 */
		$( 'input[name="background-repeat"]' ).on( 'change',  function() {
			bgImage.css( 'background-repeat', $( this ).is( ':checked' ) ? 'repeat' : 'no-repeat' );
		});

		/**
		 * Alters the background attachment CSS property whenever the background attachment input has changed.
		 *
		 * @since 4.7.0
		 *
		 * @return {void}
		 */
		$( 'input[name="background-attachment"]' ).on( 'change', function() {
			bgImage.css( 'background-attachment', $( this ).is( ':checked' ) ? 'scroll' : 'fixed' );
		});

		/**
		 * Binds the event for opening the WP Media dialog.
		 *
		 * @since 3.5.0
		 *
		 * @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.customBackground = 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
				}
			});

			/**
			 * When an image is selected, run a callback.
			 *
			 * @since 3.5.0
			 *
			 * @return {void}
 			 */
			frame.on( 'select', function() {
				// Grab the selected attachment.
				var attachment = frame.state().get('selection').first();
				var nonceValue = $( '#_wpnonce' ).val() || '';

				// Run an Ajax request to set the background image.
				$.post( ajaxurl, {
					action: 'set-background-image',
					attachment_id: attachment.id,
					_ajax_nonce: nonceValue,
					size: 'full'
				}).done( function() {
					// When the request completes, reload the window.
					window.location.reload();
				});
			});

			// Finally, open the modal.
			frame.open();
		});
	});
})(jQuery);
/**
 * @output wp-admin/js/language-chooser.js
 */

jQuery( function($) {
/*
 * Set the correct translation to the continue button and show a spinner
 * when downloading a language.
 */
var select = $( '#language' ),
	submit = $( '#language-continue' );

if ( ! $( 'body' ).hasClass( 'language-chooser' ) ) {
	return;
}

select.trigger( 'focus' ).on( 'change', function() {
	/*
	 * When a language is selected, set matching translation to continue button
	 * and attach the language attribute.
	 */
	var option = select.children( 'option:selected' );
	submit.attr({
		value: option.data( 'continue' ),
		lang: option.attr( 'lang' )
	});
});

$( 'form' ).on( 'submit', function() {
	// Show spinner for languages that need to be downloaded.
	if ( ! select.children( 'option:selected' ).data( 'installed' ) ) {
		$( this ).find( '.step .spinner' ).css( 'visibility', 'visible' );
	}
});

});
/**
 * @output wp-admin/js/comment.js
 */

/* global postboxes */

/**
 * Binds to the document ready event.
 *
 * @since 2.5.0
 *
 * @param {jQuery} $ The jQuery object.
 */
jQuery( function($) {

	postboxes.add_postbox_toggles('comment');

	var $timestampdiv = $('#timestampdiv'),
		$timestamp = $( '#timestamp' ),
		stamp = $timestamp.html(),
		$timestampwrap = $timestampdiv.find( '.timestamp-wrap' ),
		$edittimestamp = $timestampdiv.siblings( 'a.edit-timestamp' );

	/**
	 * Adds event that opens the time stamp form if the form is hidden.
	 *
	 * @listens $edittimestamp:click
	 *
	 * @param {Event} event The event object.
	 * @return {void}
	 */
	$edittimestamp.on( 'click', function( event ) {
		if ( $timestampdiv.is( ':hidden' ) ) {
			// Slide down the form and set focus on the first field.
			$timestampdiv.slideDown( 'fast', function() {
				$( 'input, select', $timestampwrap ).first().trigger( 'focus' );
			} );
			$(this).hide();
		}
		event.preventDefault();
	});

	/**
	 * Resets the time stamp values when the cancel button is clicked.
	 *
	 * @listens .cancel-timestamp:click
	 *
	 * @param {Event} event The event object.
	 * @return {void}
	 */

	$timestampdiv.find('.cancel-timestamp').on( 'click', function( event ) {
		// Move focus back to the Edit link.
		$edittimestamp.show().trigger( 'focus' );
		$timestampdiv.slideUp( 'fast' );
		$('#mm').val($('#hidden_mm').val());
		$('#jj').val($('#hidden_jj').val());
		$('#aa').val($('#hidden_aa').val());
		$('#hh').val($('#hidden_hh').val());
		$('#mn').val($('#hidden_mn').val());
		$timestamp.html( stamp );
		event.preventDefault();
	});

	/**
	 * Sets the time stamp values when the ok button is clicked.
	 *
	 * @listens .save-timestamp:click
	 *
	 * @param {Event} event The event object.
	 * @return {void}
	 */
	$timestampdiv.find('.save-timestamp').on( 'click', function( event ) { // Crazyhorse branch - multiple OK cancels.
		var aa = $('#aa').val(), mm = $('#mm').val(), jj = $('#jj').val(), hh = $('#hh').val(), mn = $('#mn').val(),
			newD = new Date( aa, mm - 1, jj, hh, mn );

		event.preventDefault();

		if ( newD.getFullYear() != aa || (1 + newD.getMonth()) != mm || newD.getDate() != jj || newD.getMinutes() != mn ) {
			$timestampwrap.addClass( 'form-invalid' );
			return;
		} else {
			$timestampwrap.removeClass( 'form-invalid' );
		}

		$timestamp.html(
			wp.i18n.__( 'Submitted on:' ) + ' <b>' +
			/* translators: 1: Month, 2: Day, 3: Year, 4: Hour, 5: Minute. */
			wp.i18n.__( '%1$s %2$s, %3$s at %4$s:%5$s' )
				.replace( '%1$s', $( 'option[value="' + mm + '"]', '#mm' ).attr( 'data-text' ) )
				.replace( '%2$s', parseInt( jj, 10 ) )
				.replace( '%3$s', aa )
				.replace( '%4$s', ( '00' + hh ).slice( -2 ) )
				.replace( '%5$s', ( '00' + mn ).slice( -2 ) ) +
				'</b> '
		);

		// Move focus back to the Edit link.
		$edittimestamp.show().trigger( 'focus' );
		$timestampdiv.slideUp( 'fast' );
	});
});
/**
 * @output wp-admin/js/common.js
 */

/* global setUserSetting, ajaxurl, alert, confirm, pagenow */
/* global columns, screenMeta */

/**
 *  Adds common WordPress functionality to the window.
 *
 *  @param {jQuery} $        jQuery object.
 *  @param {Object} window   The window object.
 *  @param {mixed} undefined Unused.
 */
( function( $, window, undefined ) {
	var $document = $( document ),
		$window = $( window ),
		$body = $( document.body ),
		__ = wp.i18n.__,
		sprintf = wp.i18n.sprintf;

/**
 * Throws an error for a deprecated property.
 *
 * @since 5.5.1
 *
 * @param {string} propName    The property that was used.
 * @param {string} version     The version of WordPress that deprecated the property.
 * @param {string} replacement The property that should have been used.
 */
function deprecatedProperty( propName, version, replacement ) {
	var message;

	if ( 'undefined' !== typeof replacement ) {
		message = sprintf(
			/* translators: 1: Deprecated property name, 2: Version number, 3: Alternative property name. */
			__( '%1$s is deprecated since version %2$s! Use %3$s instead.' ),
			propName,
			version,
			replacement
		);
	} else {
		message = sprintf(
			/* translators: 1: Deprecated property name, 2: Version number. */
			__( '%1$s is deprecated since version %2$s with no alternative available.' ),
			propName,
			version
		);
	}

	window.console.warn( message );
}

/**
 * Deprecate all properties on an object.
 *
 * @since 5.5.1
 * @since 5.6.0 Added the `version` parameter.
 *
 * @param {string} name       The name of the object, i.e. commonL10n.
 * @param {object} l10nObject The object to deprecate the properties on.
 * @param {string} version    The version of WordPress that deprecated the property.
 *
 * @return {object} The object with all its properties deprecated.
 */
function deprecateL10nObject( name, l10nObject, version ) {
	var deprecatedObject = {};

	Object.keys( l10nObject ).forEach( function( key ) {
		var prop = l10nObject[ key ];
		var propName = name + '.' + key;

		if ( 'object' === typeof prop ) {
			Object.defineProperty( deprecatedObject, key, { get: function() {
				deprecatedProperty( propName, version, prop.alternative );
				return prop.func();
			} } );
		} else {
			Object.defineProperty( deprecatedObject, key, { get: function() {
				deprecatedProperty( propName, version, 'wp.i18n' );
				return prop;
			} } );
		}
	} );

	return deprecatedObject;
}

window.wp.deprecateL10nObject = deprecateL10nObject;

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.6.0
 * @deprecated 5.5.0
 */
window.commonL10n = window.commonL10n || {
	warnDelete: '',
	dismiss: '',
	collapseMenu: '',
	expandMenu: ''
};

window.commonL10n = deprecateL10nObject( 'commonL10n', window.commonL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 3.3.0
 * @deprecated 5.5.0
 */
window.wpPointerL10n = window.wpPointerL10n || {
	dismiss: ''
};

window.wpPointerL10n = deprecateL10nObject( 'wpPointerL10n', window.wpPointerL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 4.3.0
 * @deprecated 5.5.0
 */
window.userProfileL10n = window.userProfileL10n || {
	warn: '',
	warnWeak: '',
	show: '',
	hide: '',
	cancel: '',
	ariaShow: '',
	ariaHide: ''
};

window.userProfileL10n = deprecateL10nObject( 'userProfileL10n', window.userProfileL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 4.9.6
 * @deprecated 5.5.0
 */
window.privacyToolsL10n = window.privacyToolsL10n || {
	noDataFound: '',
	foundAndRemoved: '',
	noneRemoved: '',
	someNotRemoved: '',
	removalError: '',
	emailSent: '',
	noExportFile: '',
	exportError: ''
};

window.privacyToolsL10n = deprecateL10nObject( 'privacyToolsL10n', window.privacyToolsL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 3.6.0
 * @deprecated 5.5.0
 */
window.authcheckL10n = {
	beforeunload: ''
};

window.authcheckL10n = window.authcheckL10n || deprecateL10nObject( 'authcheckL10n', window.authcheckL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.8.0
 * @deprecated 5.5.0
 */
window.tagsl10n = {
	noPerm: '',
	broken: ''
};

window.tagsl10n = window.tagsl10n || deprecateL10nObject( 'tagsl10n', window.tagsl10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.5.0
 * @deprecated 5.5.0
 */
window.adminCommentsL10n = window.adminCommentsL10n || {
	hotkeys_highlight_first: {
		alternative: 'window.adminCommentsSettings.hotkeys_highlight_first',
		func: function() { return window.adminCommentsSettings.hotkeys_highlight_first; }
	},
	hotkeys_highlight_last: {
		alternative: 'window.adminCommentsSettings.hotkeys_highlight_last',
		func: function() { return window.adminCommentsSettings.hotkeys_highlight_last; }
	},
	replyApprove: '',
	reply: '',
	warnQuickEdit: '',
	warnCommentChanges: '',
	docTitleComments: '',
	docTitleCommentsCount: ''
};

window.adminCommentsL10n = deprecateL10nObject( 'adminCommentsL10n', window.adminCommentsL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.5.0
 * @deprecated 5.5.0
 */
window.tagsSuggestL10n = window.tagsSuggestL10n || {
	tagDelimiter: '',
	removeTerm: '',
	termSelected: '',
	termAdded: '',
	termRemoved: ''
};

window.tagsSuggestL10n = deprecateL10nObject( 'tagsSuggestL10n', window.tagsSuggestL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 3.5.0
 * @deprecated 5.5.0
 */
window.wpColorPickerL10n = window.wpColorPickerL10n || {
	clear: '',
	clearAriaLabel: '',
	defaultString: '',
	defaultAriaLabel: '',
	pick: '',
	defaultLabel: ''
};

window.wpColorPickerL10n = deprecateL10nObject( 'wpColorPickerL10n', window.wpColorPickerL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.7.0
 * @deprecated 5.5.0
 */
window.attachMediaBoxL10n = window.attachMediaBoxL10n || {
	error: ''
};

window.attachMediaBoxL10n = deprecateL10nObject( 'attachMediaBoxL10n', window.attachMediaBoxL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.5.0
 * @deprecated 5.5.0
 */
window.postL10n = window.postL10n || {
	ok: '',
	cancel: '',
	publishOn: '',
	publishOnFuture: '',
	publishOnPast: '',
	dateFormat: '',
	showcomm: '',
	endcomm: '',
	publish: '',
	schedule: '',
	update: '',
	savePending: '',
	saveDraft: '',
	'private': '',
	'public': '',
	publicSticky: '',
	password: '',
	privatelyPublished: '',
	published: '',
	saveAlert: '',
	savingText: '',
	permalinkSaved: ''
};

window.postL10n = deprecateL10nObject( 'postL10n', window.postL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.7.0
 * @deprecated 5.5.0
 */
window.inlineEditL10n = window.inlineEditL10n || {
	error: '',
	ntdeltitle: '',
	notitle: '',
	comma: '',
	saved: ''
};

window.inlineEditL10n = deprecateL10nObject( 'inlineEditL10n', window.inlineEditL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.7.0
 * @deprecated 5.5.0
 */
window.plugininstallL10n = window.plugininstallL10n || {
	plugin_information: '',
	plugin_modal_label: '',
	ays: ''
};

window.plugininstallL10n = deprecateL10nObject( 'plugininstallL10n', window.plugininstallL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 3.0.0
 * @deprecated 5.5.0
 */
window.navMenuL10n = window.navMenuL10n || {
	noResultsFound: '',
	warnDeleteMenu: '',
	saveAlert: '',
	untitled: ''
};

window.navMenuL10n = deprecateL10nObject( 'navMenuL10n', window.navMenuL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.5.0
 * @deprecated 5.5.0
 */
window.commentL10n = window.commentL10n || {
	submittedOn: '',
	dateFormat: ''
};

window.commentL10n = deprecateL10nObject( 'commentL10n', window.commentL10n, '5.5.0' );

/**
 * Removed in 5.5.0, needed for back-compatibility.
 *
 * @since 2.9.0
 * @deprecated 5.5.0
 */
window.setPostThumbnailL10n = window.setPostThumbnailL10n || {
	setThumbnail: '',
	saving: '',
	error: '',
	done: ''
};

window.setPostThumbnailL10n = deprecateL10nObject( 'setPostThumbnailL10n', window.setPostThumbnailL10n, '5.5.0' );

/**
 * Removed in 6.5.0, needed for back-compatibility.
 *
 * @since 4.5.0
 * @deprecated 6.5.0
 */
window.uiAutocompleteL10n = window.uiAutocompleteL10n || {
	noResults: '',
	oneResult: '',
	manyResults: '',
	itemSelected: ''
};

window.uiAutocompleteL10n = deprecateL10nObject( 'uiAutocompleteL10n', window.uiAutocompleteL10n, '6.5.0' );

/**
 * Removed in 3.3.0, needed for back-compatibility.
 *
 * @since 2.7.0
 * @deprecated 3.3.0
 */
window.adminMenu = {
	init : function() {},
	fold : function() {},
	restoreMenuState : function() {},
	toggle : function() {},
	favorites : function() {}
};

// Show/hide/save table columns.
window.columns = {

	/**
	 * Initializes the column toggles in the screen options.
	 *
	 * Binds an onClick event to the checkboxes to show or hide the table columns
	 * based on their toggled state. And persists the toggled state.
	 *
	 * @since 2.7.0
	 *
	 * @return {void}
	 */
	init : function() {
		var that = this;
		$('.hide-column-tog', '#adv-settings').on( 'click', function() {
			var $t = $(this), column = $t.val();
			if ( $t.prop('checked') )
				that.checked(column);
			else
				that.unchecked(column);

			columns.saveManageColumnsState();
		});
	},

	/**
	 * Saves the toggled state for the columns.
	 *
	 * Saves whether the columns should be shown or hidden on a page.
	 *
	 * @since 3.0.0
	 *
	 * @return {void}
	 */
	saveManageColumnsState : function() {
		var hidden = this.hidden();
		$.post(
			ajaxurl,
			{
				action: 'hidden-columns',
				hidden: hidden,
				screenoptionnonce: $('#screenoptionnonce').val(),
				page: pagenow
			},
			function() {
				wp.a11y.speak( __( 'Screen Options updated.' ) );
			}
		);
	},

	/**
	 * Makes a column visible and adjusts the column span for the table.
	 *
	 * @since 3.0.0
	 * @param {string} column The column name.
	 *
	 * @return {void}
	 */
	checked : function(column) {
		$('.column-' + column).removeClass( 'hidden' );
		this.colSpanChange(+1);
	},

	/**
	 * Hides a column and adjusts the column span for the table.
	 *
	 * @since 3.0.0
	 * @param {string} column The column name.
	 *
	 * @return {void}
	 */
	unchecked : function(column) {
		$('.column-' + column).addClass( 'hidden' );
		this.colSpanChange(-1);
	},

	/**
	 * Gets all hidden columns.
	 *
	 * @since 3.0.0
	 *
	 * @return {string} The hidden column names separated by a comma.
	 */
	hidden : function() {
		return $( '.manage-column[id]' ).filter( '.hidden' ).map(function() {
			return this.id;
		}).get().join( ',' );
	},

	/**
	 * Gets the checked column toggles from the screen options.
	 *
	 * @since 3.0.0
	 *
	 * @return {string} String containing the checked column names.
	 */
	useCheckboxesForHidden : function() {
		this.hidden = function(){
			return $('.hide-column-tog').not(':checked').map(function() {
				var id = this.id;
				return id.substring( id, id.length - 5 );
			}).get().join(',');
		};
	},

	/**
	 * Adjusts the column span for the table.
	 *
	 * @since 3.1.0
	 *
	 * @param {number} diff The modifier for the column span.
	 */
	colSpanChange : function(diff) {
		var $t = $('table').find('.colspanchange'), n;
		if ( !$t.length )
			return;
		n = parseInt( $t.attr('colspan'), 10 ) + diff;
		$t.attr('colspan', n.toString());
	}
};

$( function() { columns.init(); } );

/**
 * Validates that the required form fields are not empty.
 *
 * @since 2.9.0
 *
 * @param {jQuery} form The form to validate.
 *
 * @return {boolean} Returns true if all required fields are not an empty string.
 */
window.validateForm = function( form ) {
	return !$( form )
		.find( '.form-required' )
		.filter( function() { return $( ':input:visible', this ).val() === ''; } )
		.addClass( 'form-invalid' )
		.find( ':input:visible' )
		.on( 'change', function() { $( this ).closest( '.form-invalid' ).removeClass( 'form-invalid' ); } )
		.length;
};

// Stub for doing better warnings.
/**
 * Shows message pop-up notice or confirmation message.
 *
 * @since 2.7.0
 *
 * @type {{warn: showNotice.warn, note: showNotice.note}}
 *
 * @return {void}
 */
window.showNotice = {

	/**
	 * Shows a delete confirmation pop-up message.
	 *
	 * @since 2.7.0
	 *
	 * @return {boolean} Returns true if the message is confirmed.
	 */
	warn : function() {
		if ( confirm( __( 'You are about to permanently delete these items from your site.\nThis action cannot be undone.\n\'Cancel\' to stop, \'OK\' to delete.' ) ) ) {
			return true;
		}

		return false;
	},

	/**
	 * Shows an alert message.
	 *
	 * @since 2.7.0
	 *
	 * @param text The text to display in the message.
	 */
	note : function(text) {
		alert(text);
	}
};

/**
 * Represents the functions for the meta screen options panel.
 *
 * @since 3.2.0
 *
 * @type {{element: null, toggles: null, page: null, init: screenMeta.init,
 *         toggleEvent: screenMeta.toggleEvent, open: screenMeta.open,
 *         close: screenMeta.close}}
 *
 * @return {void}
 */
window.screenMeta = {
	element: null, // #screen-meta
	toggles: null, // .screen-meta-toggle
	page:    null, // #wpcontent

	/**
	 * Initializes the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @return {void}
	 */
	init: function() {
		this.element = $('#screen-meta');
		this.toggles = $( '#screen-meta-links' ).find( '.show-settings' );
		this.page    = $('#wpcontent');

		this.toggles.on( 'click', this.toggleEvent );
	},

	/**
	 * Toggles the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @return {void}
	 */
	toggleEvent: function() {
		var panel = $( '#' + $( this ).attr( 'aria-controls' ) );

		if ( !panel.length )
			return;

		if ( panel.is(':visible') )
			screenMeta.close( panel, $(this) );
		else
			screenMeta.open( panel, $(this) );
	},

	/**
	 * Opens the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @param {jQuery} panel  The screen meta options panel div.
	 * @param {jQuery} button The toggle button.
	 *
	 * @return {void}
	 */
	open: function( panel, button ) {

		$( '#screen-meta-links' ).find( '.screen-meta-toggle' ).not( button.parent() ).css( 'visibility', 'hidden' );

		panel.parent().show();

		/**
		 * Sets the focus to the meta options panel and adds the necessary CSS classes.
		 *
		 * @since 3.2.0
		 *
		 * @return {void}
		 */
		panel.slideDown( 'fast', function() {
			panel.removeClass( 'hidden' ).trigger( 'focus' );
			button.addClass( 'screen-meta-active' ).attr( 'aria-expanded', true );
		});

		$document.trigger( 'screen:options:open' );
	},

	/**
	 * Closes the screen meta options panel.
	 *
	 * @since 3.2.0
	 *
	 * @param {jQuery} panel  The screen meta options panel div.
	 * @param {jQuery} button The toggle button.
	 *
	 * @return {void}
	 */
	close: function( panel, button ) {
		/**
		 * Hides the screen meta options panel.
		 *
		 * @since 3.2.0
		 *
		 * @return {void}
		 */
		panel.slideUp( 'fast', function() {
			button.removeClass( 'screen-meta-active' ).attr( 'aria-expanded', false );
			$('.screen-meta-toggle').css('visibility', '');
			panel.parent().hide();
			panel.addClass( 'hidden' );
		});

		$document.trigger( 'screen:options:close' );
	}
};

/**
 * Initializes the help tabs in the help panel.
 *
 * @param {Event} e The event object.
 *
 * @return {void}
 */
$('.contextual-help-tabs').on( 'click', 'a', function(e) {
	var link = $(this),
		panel;

	e.preventDefault();

	// Don't do anything if the click is for the tab already showing.
	if ( link.is('.active a') )
		return false;

	// Links.
	$('.contextual-help-tabs .active').removeClass('active');
	link.parent('li').addClass('active');

	panel = $( link.attr('href') );

	// Panels.
	$('.help-tab-content').not( panel ).removeClass('active').hide();
	panel.addClass('active').show();
});

/**
 * Update custom permalink structure via buttons.
 */
var permalinkStructureFocused = false,
    $permalinkStructure       = $( '#permalink_structure' ),
    $permalinkStructureInputs = $( '.permalink-structure input:radio' ),
    $permalinkCustomSelection = $( '#custom_selection' ),
    $availableStructureTags   = $( '.form-table.permalink-structure .available-structure-tags button' );

// Change permalink structure input when selecting one of the common structures.
$permalinkStructureInputs.on( 'change', function() {
	if ( 'custom' === this.value ) {
		return;
	}

	$permalinkStructure.val( this.value );

	// Update button states after selection.
	$availableStructureTags.each( function() {
		changeStructureTagButtonState( $( this ) );
	} );
} );

$permalinkStructure.on( 'click input', function() {
	$permalinkCustomSelection.prop( 'checked', true );
} );

// Check if the permalink structure input field has had focus at least once.
$permalinkStructure.on( 'focus', function( event ) {
	permalinkStructureFocused = true;
	$( this ).off( event );
} );

/**
 * Enables or disables a structure tag button depending on its usage.
 *
 * If the structure is already used in the custom permalink structure,
 * it will be disabled.
 *
 * @param {Object} button Button jQuery object.
 */
function changeStructureTagButtonState( button ) {
	if ( -1 !== $permalinkStructure.val().indexOf( button.text().trim() ) ) {
		button.attr( 'data-label', button.attr( 'aria-label' ) );
		button.attr( 'aria-label', button.attr( 'data-used' ) );
		button.attr( 'aria-pressed', true );
		button.addClass( 'active' );
	} else if ( button.attr( 'data-label' ) ) {
		button.attr( 'aria-label', button.attr( 'data-label' ) );
		button.attr( 'aria-pressed', false );
		button.removeClass( 'active' );
	}
}

// Check initial button state.
$availableStructureTags.each( function() {
	changeStructureTagButtonState( $( this ) );
} );

// Observe permalink structure field and disable buttons of tags that are already present.
$permalinkStructure.on( 'change', function() {
	$availableStructureTags.each( function() {
		changeStructureTagButtonState( $( this ) );
	} );
} );

$availableStructureTags.on( 'click', function() {
	var permalinkStructureValue = $permalinkStructure.val(),
	    selectionStart          = $permalinkStructure[ 0 ].selectionStart,
	    selectionEnd            = $permalinkStructure[ 0 ].selectionEnd,
	    textToAppend            = $( this ).text().trim(),
	    textToAnnounce,
	    newSelectionStart;

	if ( $( this ).hasClass( 'active' ) ) {
		textToAnnounce = $( this ).attr( 'data-removed' );
	} else {
		textToAnnounce = $( this ).attr( 'data-added' );
	}

	// Remove structure tag if already part of the structure.
	if ( -1 !== permalinkStructureValue.indexOf( textToAppend ) ) {
		permalinkStructureValue = permalinkStructureValue.replace( textToAppend + '/', '' );

		$permalinkStructure.val( '/' === permalinkStructureValue ? '' : permalinkStructureValue );

		// Announce change to screen readers.
		$( '#custom_selection_updated' ).text( textToAnnounce );

		// Disable button.
		changeStructureTagButtonState( $( this ) );

		return;
	}

	// Input field never had focus, move selection to end of input.
	if ( ! permalinkStructureFocused && 0 === selectionStart && 0 === selectionEnd ) {
		selectionStart = selectionEnd = permalinkStructureValue.length;
	}

	$permalinkCustomSelection.prop( 'checked', true );

	// Prepend and append slashes if necessary.
	if ( '/' !== permalinkStructureValue.substr( 0, selectionStart ).substr( -1 ) ) {
		textToAppend = '/' + textToAppend;
	}

	if ( '/' !== permalinkStructureValue.substr( selectionEnd, 1 ) ) {
		textToAppend = textToAppend + '/';
	}

	// Insert structure tag at the specified position.
	$permalinkStructure.val( permalinkStructureValue.substr( 0, selectionStart ) + textToAppend + permalinkStructureValue.substr( selectionEnd ) );

	// Announce change to screen readers.
	$( '#custom_selection_updated' ).text( textToAnnounce );

	// Disable button.
	changeStructureTagButtonState( $( this ) );

	// If input had focus give it back with cursor right after appended text.
	if ( permalinkStructureFocused && $permalinkStructure[0].setSelectionRange ) {
		newSelectionStart = ( permalinkStructureValue.substr( 0, selectionStart ) + textToAppend ).length;
		$permalinkStructure[0].setSelectionRange( newSelectionStart, newSelectionStart );
		$permalinkStructure.trigger( 'focus' );
	}
} );

$( function() {
	var checks, first, last, checked, sliced, mobileEvent, transitionTimeout, focusedRowActions,
		lastClicked = false,
		pageInput = $('input.current-page'),
		currentPage = pageInput.val(),
		isIOS = /iPhone|iPad|iPod/.test( navigator.userAgent ),
		isAndroid = navigator.userAgent.indexOf( 'Android' ) !== -1,
		$adminMenuWrap = $( '#adminmenuwrap' ),
		$wpwrap = $( '#wpwrap' ),
		$adminmenu = $( '#adminmenu' ),
		$overlay = $( '#wp-responsive-overlay' ),
		$toolbar = $( '#wp-toolbar' ),
		$toolbarPopups = $toolbar.find( 'a[aria-haspopup="true"]' ),
		$sortables = $('.meta-box-sortables'),
		wpResponsiveActive = false,
		$adminbar = $( '#wpadminbar' ),
		lastScrollPosition = 0,
		pinnedMenuTop = false,
		pinnedMenuBottom = false,
		menuTop = 0,
		menuState,
		menuIsPinned = false,
		height = {
			window: $window.height(),
			wpwrap: $wpwrap.height(),
			adminbar: $adminbar.height(),
			menu: $adminMenuWrap.height()
		},
		$headerEnd = $( '.wp-header-end' );

	/**
	 * Makes the fly-out submenu header clickable, when the menu is folded.
	 *
	 * @param {Event} e The event object.
	 *
	 * @return {void}
	 */
	$adminmenu.on('click.wp-submenu-head', '.wp-submenu-head', function(e){
		$(e.target).parent().siblings('a').get(0).click();
	});

	/**
	 * Collapses the admin menu.
	 *
	 * @return {void}
	 */
	$( '#collapse-button' ).on( 'click.collapse-menu', function() {
		var viewportWidth = getViewportWidth() || 961;

		// Reset any compensation for submenus near the bottom of the screen.
		$('#adminmenu div.wp-submenu').css('margin-top', '');

		if ( viewportWidth <= 960 ) {
			if ( $body.hasClass('auto-fold') ) {
				$body.removeClass('auto-fold').removeClass('folded');
				setUserSetting('unfold', 1);
				setUserSetting('mfold', 'o');
				menuState = 'open';
			} else {
				$body.addClass('auto-fold');
				setUserSetting('unfold', 0);
				menuState = 'folded';
			}
		} else {
			if ( $body.hasClass('folded') ) {
				$body.removeClass('folded');
				setUserSetting('mfold', 'o');
				menuState = 'open';
			} else {
				$body.addClass('folded');
				setUserSetting('mfold', 'f');
				menuState = 'folded';
			}
		}

		$document.trigger( 'wp-collapse-menu', { state: menuState } );
	});

	/**
	 * Ensures an admin submenu is within the visual viewport.
	 *
	 * @since 4.1.0
	 *
	 * @param {jQuery} $menuItem The parent menu item containing the submenu.
	 *
	 * @return {void}
	 */
	function adjustSubmenu( $menuItem ) {
		var bottomOffset, pageHeight, adjustment, theFold, menutop, wintop, maxtop,
			$submenu = $menuItem.find( '.wp-submenu' );

		menutop = $menuItem.offset().top;
		wintop = $window.scrollTop();
		maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar.

		bottomOffset = menutop + $submenu.height() + 1; // Bottom offset of the menu.
		pageHeight = $wpwrap.height();                  // Height of the entire page.
		adjustment = 60 + bottomOffset - pageHeight;
		theFold = $window.height() + wintop - 50;       // The fold.

		if ( theFold < ( bottomOffset - adjustment ) ) {
			adjustment = bottomOffset - theFold;
		}

		if ( adjustment > maxtop ) {
			adjustment = maxtop;
		}

		if ( adjustment > 1 && $('#wp-admin-bar-menu-toggle').is(':hidden') ) {
			$submenu.css( 'margin-top', '-' + adjustment + 'px' );
		} else {
			$submenu.css( 'margin-top', '' );
		}
	}

	if ( 'ontouchstart' in window || /IEMobile\/[1-9]/.test(navigator.userAgent) ) { // Touch screen device.
		// iOS Safari works with touchstart, the rest work with click.
		mobileEvent = isIOS ? 'touchstart' : 'click';

		/**
		 * Closes any open submenus when touch/click is not on the menu.
		 *
		 * @param {Event} e The event object.
		 *
		 * @return {void}
		 */
		$body.on( mobileEvent+'.wp-mobile-hover', function(e) {
			if ( $adminmenu.data('wp-responsive') ) {
				return;
			}

			if ( ! $( e.target ).closest( '#adminmenu' ).length ) {
				$adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
			}
		});

		/**
		 * Handles the opening or closing the submenu based on the mobile click|touch event.
		 *
		 * @param {Event} event The event object.
		 *
		 * @return {void}
		 */
		$adminmenu.find( 'a.wp-has-submenu' ).on( mobileEvent + '.wp-mobile-hover', function( event ) {
			var $menuItem = $(this).parent();

			if ( $adminmenu.data( 'wp-responsive' ) ) {
				return;
			}

			/*
			 * Show the sub instead of following the link if:
			 * 	- the submenu is not open.
			 * 	- the submenu is not shown inline or the menu is not folded.
			 */
			if ( ! $menuItem.hasClass( 'opensub' ) && ( ! $menuItem.hasClass( 'wp-menu-open' ) || $menuItem.width() < 40 ) ) {
				event.preventDefault();
				adjustSubmenu( $menuItem );
				$adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
				$menuItem.addClass('opensub');
			}
		});
	}

	if ( ! isIOS && ! isAndroid ) {
		$adminmenu.find( 'li.wp-has-submenu' ).hoverIntent({

			/**
			 * Opens the submenu when hovered over the menu item for desktops.
			 *
			 * @return {void}
			 */
			over: function() {
				var $menuItem = $( this ),
					$submenu = $menuItem.find( '.wp-submenu' ),
					top = parseInt( $submenu.css( 'top' ), 10 );

				if ( isNaN( top ) || top > -5 ) { // The submenu is visible.
					return;
				}

				if ( $adminmenu.data( 'wp-responsive' ) ) {
					// The menu is in responsive mode, bail.
					return;
				}

				adjustSubmenu( $menuItem );
				$adminmenu.find( 'li.opensub' ).removeClass( 'opensub' );
				$menuItem.addClass( 'opensub' );
			},

			/**
			 * Closes the submenu when no longer hovering the menu item.
			 *
			 * @return {void}
			 */
			out: function(){
				if ( $adminmenu.data( 'wp-responsive' ) ) {
					// The menu is in responsive mode, bail.
					return;
				}

				$( this ).removeClass( 'opensub' ).find( '.wp-submenu' ).css( 'margin-top', '' );
			},
			timeout: 200,
			sensitivity: 7,
			interval: 90
		});

		/**
		 * Opens the submenu on when focused on the menu item.
		 *
		 * @param {Event} event The event object.
		 *
		 * @return {void}
		 */
		$adminmenu.on( 'focus.adminmenu', '.wp-submenu a', function( event ) {
			if ( $adminmenu.data( 'wp-responsive' ) ) {
				// The menu is in responsive mode, bail.
				return;
			}

			$( event.target ).closest( 'li.menu-top' ).addClass( 'opensub' );

			/**
			 * Closes the submenu on blur from the menu item.
			 *
			 * @param {Event} event The event object.
			 *
			 * @return {void}
			 */
		}).on( 'blur.adminmenu', '.wp-submenu a', function( event ) {
			if ( $adminmenu.data( 'wp-responsive' ) ) {
				return;
			}

			$( event.target ).closest( 'li.menu-top' ).removeClass( 'opensub' );

			/**
			 * Adjusts the size for the submenu.
			 *
			 * @return {void}
			 */
		}).find( 'li.wp-has-submenu.wp-not-current-submenu' ).on( 'focusin.adminmenu', function() {
			adjustSubmenu( $( this ) );
		});
	}

	/*
	 * The `.below-h2` class is here just for backward compatibility with plugins
	 * that are (incorrectly) using it. Do not use. Use `.inline` instead. See #34570.
	 * If '.wp-header-end' is found, append the notices after it otherwise
	 * after the first h1 or h2 heading found within the main content.
	 */
	if ( ! $headerEnd.length ) {
		$headerEnd = $( '.wrap h1, .wrap h2' ).first();
	}
	$( 'div.updated, div.error, div.notice' ).not( '.inline, .below-h2' ).insertAfter( $headerEnd );

	/**
	 * Makes notices dismissible.
	 *
	 * @since 4.4.0
	 *
	 * @return {void}
	 */
	function makeNoticesDismissible() {
		$( '.notice.is-dismissible' ).each( function() {
			var $el = $( this ),
				$button = $( '<button type="button" class="notice-dismiss"><span class="screen-reader-text"></span></button>' );

			if ( $el.find( '.notice-dismiss' ).length ) {
				return;
			}

			// Ensure plain text.
			$button.find( '.screen-reader-text' ).text( __( 'Dismiss this notice.' ) );
			$button.on( 'click.wp-dismiss-notice', function( event ) {
				event.preventDefault();
				$el.fadeTo( 100, 0, function() {
					$el.slideUp( 100, function() {
						$el.remove();
					});
				});
			});

			$el.append( $button );
		});
	}

	$document.on( 'wp-updates-notice-added wp-plugin-install-error wp-plugin-update-error wp-plugin-delete-error wp-theme-install-error wp-theme-delete-error wp-notice-added', makeNoticesDismissible );

	// Init screen meta.
	screenMeta.init();

	/**
	 * Checks a checkbox.
	 *
	 * This event needs to be delegated. Ticket #37973.
	 *
	 * @return {boolean} Returns whether a checkbox is checked or not.
	 */
	$body.on( 'click', 'tbody > tr > .check-column :checkbox', function( event ) {
		// Shift click to select a range of checkboxes.
		if ( 'undefined' == event.shiftKey ) { return true; }
		if ( event.shiftKey ) {
			if ( !lastClicked ) { return true; }
			checks = $( lastClicked ).closest( 'form' ).find( ':checkbox' ).filter( ':visible:enabled' );
			first = checks.index( lastClicked );
			last = checks.index( this );
			checked = $(this).prop('checked');
			if ( 0 < first && 0 < last && first != last ) {
				sliced = ( last > first ) ? checks.slice( first, last ) : checks.slice( last, first );
				sliced.prop( 'checked', function() {
					if ( $(this).closest('tr').is(':visible') )
						return checked;

					return false;
				});
			}
		}
		lastClicked = this;

		// Toggle the "Select all" checkboxes depending if the other ones are all checked or not.
		var unchecked = $(this).closest('tbody').find('tr').find(':checkbox').filter(':visible:enabled').not(':checked');

		/**
		 * Determines if all checkboxes are checked.
		 *
		 * @return {boolean} Returns true if there are no unchecked checkboxes.
		 */
		$(this).closest('table').children('thead, tfoot').find(':checkbox').prop('checked', function() {
			return ( 0 === unchecked.length );
		});

		return true;
	});

	/**
	 * Controls all the toggles on bulk toggle change.
	 *
	 * When the bulk checkbox is changed, all the checkboxes in the tables are changed accordingly.
	 * When the shift-button is pressed while changing the bulk checkbox the checkboxes in the table are inverted.
	 *
	 * This event needs to be delegated. Ticket #37973.
	 *
	 * @param {Event} event The event object.
	 *
	 * @return {boolean}
	 */
	$body.on( 'click.wp-toggle-checkboxes', 'thead .check-column :checkbox, tfoot .check-column :checkbox', function( event ) {
		var $this = $(this),
			$table = $this.closest( 'table' ),
			controlChecked = $this.prop('checked'),
			toggle = event.shiftKey || $this.data('wp-toggle');

		$table.children( 'tbody' ).filter(':visible')
			.children().children('.check-column').find(':checkbox')
			/**
			 * Updates the checked state on the checkbox in the table.
			 *
			 * @return {boolean} True checks the checkbox, False unchecks the checkbox.
			 */
			.prop('checked', function() {
				if ( $(this).is(':hidden,:disabled') ) {
					return false;
				}

				if ( toggle ) {
					return ! $(this).prop( 'checked' );
				} else if ( controlChecked ) {
					return true;
				}

				return false;
			});

		$table.children('thead,  tfoot').filter(':visible')
			.children().children('.check-column').find(':checkbox')

			/**
			 * Syncs the bulk checkboxes on the top and bottom of the table.
			 *
			 * @return {boolean} True checks the checkbox, False unchecks the checkbox.
			 */
			.prop('checked', function() {
				if ( toggle ) {
					return false;
				} else if ( controlChecked ) {
					return true;
				}

				return false;
			});
	});

	/**
	 * Marries a secondary control to its primary control.
	 *
	 * @param {jQuery} topSelector    The top selector element.
	 * @param {jQuery} topSubmit      The top submit element.
	 * @param {jQuery} bottomSelector The bottom selector element.
	 * @param {jQuery} bottomSubmit   The bottom submit element.
	 * @return {void}
	 */
	function marryControls( topSelector, topSubmit, bottomSelector, bottomSubmit ) {
		/**
		 * Updates the primary selector when the secondary selector is changed.
		 *
		 * @since 5.7.0
		 *
		 * @return {void}
		 */
		function updateTopSelector() {
			topSelector.val($(this).val());
		}
		bottomSelector.on('change', updateTopSelector);

		/**
		 * Updates the secondary selector when the primary selector is changed.
		 *
		 * @since 5.7.0
		 *
		 * @return {void}
		 */
		function updateBottomSelector() {
			bottomSelector.val($(this).val());
		}
		topSelector.on('change', updateBottomSelector);

		/**
		 * Triggers the primary submit when then secondary submit is clicked.
		 *
		 * @since 5.7.0
		 *
		 * @return {void}
		 */
		function triggerSubmitClick(e) {
			e.preventDefault();
			e.stopPropagation();

			topSubmit.trigger('click');
		}
		bottomSubmit.on('click', triggerSubmitClick);
	}

	// Marry the secondary "Bulk actions" controls to the primary controls:
	marryControls( $('#bulk-action-selector-top'), $('#doaction'), $('#bulk-action-selector-bottom'), $('#doaction2') );

	// Marry the secondary "Change role to" controls to the primary controls:
	marryControls( $('#new_role'), $('#changeit'), $('#new_role2'), $('#changeit2') );

	var addAdminNotice = function( data ) {
		var $notice = $( data.selector ),
			$headerEnd = $( '.wp-header-end' ),
			type,
			dismissible,
			$adminNotice;

		delete data.selector;

		dismissible = ( data.dismissible && data.dismissible === true ) ? ' is-dismissible' : '';
		type        = ( data.type ) ? data.type : 'info';

		$adminNotice = '<div id="' + data.id + '" class="notice notice-' + data.type + dismissible + '"><p>' + data.message + '</p></div>';

		// Check if this admin notice already exists.
		if ( ! $notice.length ) {
			$notice = $( '#' + data.id );
		}

		if ( $notice.length ) {
			$notice.replaceWith( $adminNotice );
		} else if ( $headerEnd.length ) {
			$headerEnd.after( $adminNotice );
		} else {
			if ( 'customize' === pagenow ) {
				$( '.customize-themes-notifications' ).append( $adminNotice );
			} else {
				$( '.wrap' ).find( '> h1' ).after( $adminNotice );
			}
		}

		$document.trigger( 'wp-notice-added' );
	};

	$( '.bulkactions' ).parents( 'form' ).on( 'submit', function( event ) {
		var form = this,
			submitterName = event.originalEvent && event.originalEvent.submitter ? event.originalEvent.submitter.name : false,
			currentPageSelector = form.querySelector( '#current-page-selector' );

		if ( currentPageSelector && currentPageSelector.defaultValue !== currentPageSelector.value ) {
			return; // Pagination form submission.
		}

		// Observe submissions from posts lists for 'bulk_action' or users lists for 'new_role'.
		var bulkFieldRelations = {
			'bulk_action' : window.bulkActionObserverIds.bulk_action,
			'changeit' : window.bulkActionObserverIds.changeit
		};
		if ( ! Object.keys( bulkFieldRelations ).includes( submitterName ) ) {
			return;
		}

		var values = new FormData(form);
		var value = values.get( bulkFieldRelations[ submitterName ] ) || '-1';

		// Check that the action is not the default one.
		if ( value !== '-1' ) {
			// Check that at least one item is selected.
			var itemsSelected = form.querySelectorAll( '.wp-list-table tbody .check-column input[type="checkbox"]:checked' );

			if ( itemsSelected.length > 0 ) {
				return;
			}
		}
		event.preventDefault();
		event.stopPropagation();
		$( 'html, body' ).animate( { scrollTop: 0 } );

		var errorMessage = __( 'Please select at least one item to perform this action on.' );
		addAdminNotice( {
			id: 'no-items-selected',
			type: 'error',
			message: errorMessage,
			dismissible: true,
		} );

		wp.a11y.speak( errorMessage );
	});

	/**
	 * Shows row actions on focus of its parent container element or any other elements contained within.
	 *
	 * @return {void}
	 */
	$( '#wpbody-content' ).on({
		focusin: function() {
			clearTimeout( transitionTimeout );
			focusedRowActions = $( this ).find( '.row-actions' );
			// transitionTimeout is necessary for Firefox, but Chrome won't remove the CSS class without a little help.
			$( '.row-actions' ).not( this ).removeClass( 'visible' );
			focusedRowActions.addClass( 'visible' );
		},
		focusout: function() {
			// Tabbing between post title and .row-actions links needs a brief pause, otherwise
			// the .row-actions div gets hidden in transit in some browsers (ahem, Firefox).
			transitionTimeout = setTimeout( function() {
				focusedRowActions.removeClass( 'visible' );
			}, 30 );
		}
	}, '.table-view-list .has-row-actions' );

	// Toggle list table rows on small screens.
	$( 'tbody' ).on( 'click', '.toggle-row', function() {
		$( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
	});

	$('#default-password-nag-no').on( 'click', function() {
		setUserSetting('default_password_nag', 'hide');
		$('div.default-password-nag').hide();
		return false;
	});

	/**
	 * Handles tab keypresses in theme and plugin file editor textareas.
	 *
	 * @param {Event} e The event object.
	 *
	 * @return {void}
	 */
	$('#newcontent').on('keydown.wpevent_InsertTab', function(e) {
		var el = e.target, selStart, selEnd, val, scroll, sel;

		// After pressing escape key (keyCode: 27), the tab key should tab out of the textarea.
		if ( e.keyCode == 27 ) {
			// When pressing Escape: Opera 12 and 27 blur form fields, IE 8 clears them.
			e.preventDefault();
			$(el).data('tab-out', true);
			return;
		}

		// Only listen for plain tab key (keyCode: 9) without any modifiers.
		if ( e.keyCode != 9 || e.ctrlKey || e.altKey || e.shiftKey )
			return;

		// After tabbing out, reset it so next time the tab key can be used again.
		if ( $(el).data('tab-out') ) {
			$(el).data('tab-out', false);
			return;
		}

		selStart = el.selectionStart;
		selEnd = el.selectionEnd;
		val = el.value;

		// If any text is selected, replace the selection with a tab character.
		if ( document.selection ) {
			el.focus();
			sel = document.selection.createRange();
			sel.text = '\t';
		} else if ( selStart >= 0 ) {
			scroll = this.scrollTop;
			el.value = val.substring(0, selStart).concat('\t', val.substring(selEnd) );
			el.selectionStart = el.selectionEnd = selStart + 1;
			this.scrollTop = scroll;
		}

		// Cancel the regular tab functionality, to prevent losing focus of the textarea.
		if ( e.stopPropagation )
			e.stopPropagation();
		if ( e.preventDefault )
			e.preventDefault();
	});

	// Reset page number variable for new filters/searches but not for bulk actions. See #17685.
	if ( pageInput.length ) {

		/**
		 * Handles pagination variable when filtering the list table.
		 *
		 * Set the pagination argument to the first page when the post-filter form is submitted.
		 * This happens when pressing the 'filter' button on the list table page.
		 *
		 * The pagination argument should not be touched when the bulk action dropdowns are set to do anything.
		 *
		 * The form closest to the pageInput is the post-filter form.
		 *
		 * @return {void}
		 */
		pageInput.closest('form').on( 'submit', function() {
			/*
			 * action = bulk action dropdown at the top of the table
			 */
			if ( $('select[name="action"]').val() == -1 && pageInput.val() == currentPage )
				pageInput.val('1');
		});
	}

	/**
	 * Resets the bulk actions when the search button is clicked.
	 *
	 * @return {void}
	 */
	$('.search-box input[type="search"], .search-box input[type="submit"]').on( 'mousedown', function () {
		$('select[name^="action"]').val('-1');
	});

	/**
	 * Scrolls into view when focus.scroll-into-view is triggered.
	 *
	 * @param {Event} e The event object.
	 *
	 * @return {void}
 	 */
	$('#contextual-help-link, #show-settings-link').on( 'focus.scroll-into-view', function(e){
		if ( e.target.scrollIntoViewIfNeeded )
			e.target.scrollIntoViewIfNeeded(false);
	});

	/**
	 * Disables the submit upload buttons when no data is entered.
	 *
	 * @return {void}
	 */
	(function(){
		var button, input, form = $('form.wp-upload-form');

		// Exit when no upload form is found.
		if ( ! form.length )
			return;

		button = form.find('input[type="submit"]');
		input = form.find('input[type="file"]');

		/**
		 * Determines if any data is entered in any file upload input.
		 *
		 * @since 3.5.0
		 *
		 * @return {void}
		 */
		function toggleUploadButton() {
			// When no inputs have a value, disable the upload buttons.
			button.prop('disabled', '' === input.map( function() {
				return $(this).val();
			}).get().join(''));
		}

		// Update the status initially.
		toggleUploadButton();
		// Update the status when any file input changes.
		input.on('change', toggleUploadButton);
	})();

	/**
	 * Pins the menu while distraction-free writing is enabled.
	 *
	 * @param {Event} event Event data.
	 *
	 * @since 4.1.0
	 *
	 * @return {void}
	 */
	function pinMenu( event ) {
		var windowPos = $window.scrollTop(),
			resizing = ! event || event.type !== 'scroll';

		if ( isIOS || $adminmenu.data( 'wp-responsive' ) ) {
			return;
		}

		/*
		 * When the menu is higher than the window and smaller than the entire page.
		 * It should be adjusted to be able to see the entire menu.
		 *
		 * Otherwise it can be accessed normally.
		 */
		if ( height.menu + height.adminbar < height.window ||
			height.menu + height.adminbar + 20 > height.wpwrap ) {
			unpinMenu();
			return;
		}

		menuIsPinned = true;

		// If the menu is higher than the window, compensate on scroll.
		if ( height.menu + height.adminbar > height.window ) {
			// Check for overscrolling, this happens when swiping up at the top of the document in modern browsers.
			if ( windowPos < 0 ) {
				// Stick the menu to the top.
				if ( ! pinnedMenuTop ) {
					pinnedMenuTop = true;
					pinnedMenuBottom = false;

					$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: ''
					});
				}

				return;
			} else if ( windowPos + height.window > $document.height() - 1 ) {
				// When overscrolling at the bottom, stick the menu to the bottom.
				if ( ! pinnedMenuBottom ) {
					pinnedMenuBottom = true;
					pinnedMenuTop = false;

					$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: 0
					});
				}

				return;
			}

			if ( windowPos > lastScrollPosition ) {
				// When a down scroll has been detected.

				// If it was pinned to the top, unpin and calculate relative scroll.
				if ( pinnedMenuTop ) {
					pinnedMenuTop = false;
					// Calculate new offset position.
					menuTop = $adminMenuWrap.offset().top - height.adminbar - ( windowPos - lastScrollPosition );

					if ( menuTop + height.menu + height.adminbar < windowPos + height.window ) {
						menuTop = windowPos + height.window - height.menu - height.adminbar;
					}

					$adminMenuWrap.css({
						position: 'absolute',
						top: menuTop,
						bottom: ''
					});
				} else if ( ! pinnedMenuBottom && $adminMenuWrap.offset().top + height.menu < windowPos + height.window ) {
					// Pin it to the bottom.
					pinnedMenuBottom = true;

					$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: 0
					});
				}
			} else if ( windowPos < lastScrollPosition ) {
				// When a scroll up is detected.

				// If it was pinned to the bottom, unpin and calculate relative scroll.
				if ( pinnedMenuBottom ) {
					pinnedMenuBottom = false;

					// Calculate new offset position.
					menuTop = $adminMenuWrap.offset().top - height.adminbar + ( lastScrollPosition - windowPos );

					if ( menuTop + height.menu > windowPos + height.window ) {
						menuTop = windowPos;
					}

					$adminMenuWrap.css({
						position: 'absolute',
						top: menuTop,
						bottom: ''
					});
				} else if ( ! pinnedMenuTop && $adminMenuWrap.offset().top >= windowPos + height.adminbar ) {

					// Pin it to the top.
					pinnedMenuTop = true;

					$adminMenuWrap.css({
						position: 'fixed',
						top: '',
						bottom: ''
					});
				}
			} else if ( resizing ) {
				// Window is being resized.

				pinnedMenuTop = pinnedMenuBottom = false;

				// Calculate the new offset.
				menuTop = windowPos + height.window - height.menu - height.adminbar - 1;

				if ( menuTop > 0 ) {
					$adminMenuWrap.css({
						position: 'absolute',
						top: menuTop,
						bottom: ''
					});
				} else {
					unpinMenu();
				}
			}
		}

		lastScrollPosition = windowPos;
	}

	/**
	 * Determines the height of certain elements.
	 *
	 * @since 4.1.0
	 *
	 * @return {void}
	 */
	function resetHeights() {
		height = {
			window: $window.height(),
			wpwrap: $wpwrap.height(),
			adminbar: $adminbar.height(),
			menu: $adminMenuWrap.height()
		};
	}

	/**
	 * Unpins the menu.
	 *
	 * @since 4.1.0
	 *
	 * @return {void}
	 */
	function unpinMenu() {
		if ( isIOS || ! menuIsPinned ) {
			return;
		}

		pinnedMenuTop = pinnedMenuBottom = menuIsPinned = false;
		$adminMenuWrap.css({
			position: '',
			top: '',
			bottom: ''
		});
	}

	/**
	 * Pins and unpins the menu when applicable.
	 *
	 * @since 4.1.0
	 *
	 * @return {void}
	 */
	function setPinMenu() {
		resetHeights();

		if ( $adminmenu.data('wp-responsive') ) {
			$body.removeClass( 'sticky-menu' );
			unpinMenu();
		} else if ( height.menu + height.adminbar > height.window ) {
			pinMenu();
			$body.removeClass( 'sticky-menu' );
		} else {
			$body.addClass( 'sticky-menu' );
			unpinMenu();
		}
	}

	if ( ! isIOS ) {
		$window.on( 'scroll.pin-menu', pinMenu );
		$document.on( 'tinymce-editor-init.pin-menu', function( event, editor ) {
			editor.on( 'wp-autoresize', resetHeights );
		});
	}

	/**
	 * Changes the sortables and responsiveness of metaboxes.
	 *
	 * @since 3.8.0
	 *
	 * @return {void}
	 */
	window.wpResponsive = {

		/**
		 * Initializes the wpResponsive object.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		init: function() {
			var self = this;

			this.maybeDisableSortables = this.maybeDisableSortables.bind( this );

			// Modify functionality based on custom activate/deactivate event.
			$document.on( 'wp-responsive-activate.wp-responsive', function() {
				self.activate();
				self.toggleAriaHasPopup( 'add' );
			}).on( 'wp-responsive-deactivate.wp-responsive', function() {
				self.deactivate();
				self.toggleAriaHasPopup( 'remove' );
			});

			$( '#wp-admin-bar-menu-toggle a' ).attr( 'aria-expanded', 'false' );

			// Toggle sidebar when toggle is clicked.
			$( '#wp-admin-bar-menu-toggle' ).on( 'click.wp-responsive', function( event ) {
				event.preventDefault();

				// Close any open toolbar submenus.
				$adminbar.find( '.hover' ).removeClass( 'hover' );

				$wpwrap.toggleClass( 'wp-responsive-open' );
				if ( $wpwrap.hasClass( 'wp-responsive-open' ) ) {
					$(this).find('a').attr( 'aria-expanded', 'true' );
					$( '#adminmenu a:first' ).trigger( 'focus' );
				} else {
					$(this).find('a').attr( 'aria-expanded', 'false' );
				}
			} );

			// Close sidebar when target moves outside of toggle and sidebar.
			$( document ).on( 'click', function( event ) {
				if ( ! $wpwrap.hasClass( 'wp-responsive-open' ) || ! document.hasFocus() ) {
					return;
				}

				var focusIsInToggle  = $.contains( $( '#wp-admin-bar-menu-toggle' )[0], event.target );
				var focusIsInSidebar = $.contains( $( '#adminmenuwrap' )[0], event.target );

				if ( ! focusIsInToggle && ! focusIsInSidebar ) {
					$( '#wp-admin-bar-menu-toggle' ).trigger( 'click.wp-responsive' );
				}
			} );

			// Close sidebar when a keypress completes outside of toggle and sidebar.
			$( document ).on( 'keyup', function( event ) {
				var toggleButton   = $( '#wp-admin-bar-menu-toggle' )[0];
				if ( ! $wpwrap.hasClass( 'wp-responsive-open' ) ) {
				    return;
				}
				if ( 27 === event.keyCode ) {
					$( toggleButton ).trigger( 'click.wp-responsive' );
					$( toggleButton ).find( 'a' ).trigger( 'focus' );
				} else {
					if ( 9 === event.keyCode ) {
						var sidebar        = $( '#adminmenuwrap' )[0];
						var focusedElement = event.relatedTarget || document.activeElement;
						// A brief delay is required to allow focus to switch to another element.
						setTimeout( function() {
							var focusIsInToggle  = $.contains( toggleButton, focusedElement );
							var focusIsInSidebar = $.contains( sidebar, focusedElement );

							if ( ! focusIsInToggle && ! focusIsInSidebar ) {
								$( toggleButton ).trigger( 'click.wp-responsive' );
							}
						}, 10 );
					}
				}
			});

			// Add menu events.
			$adminmenu.on( 'click.wp-responsive', 'li.wp-has-submenu > a', function( event ) {
				if ( ! $adminmenu.data('wp-responsive') ) {
					return;
				}
				let state = ( 'false' === $( this ).attr( 'aria-expanded' ) ) ? 'true' : 'false';
				$( this ).parent( 'li' ).toggleClass( 'selected' );
				$( this ).attr( 'aria-expanded', state );
				$( this ).trigger( 'focus' );
				event.preventDefault();
			});

			self.trigger();
			$document.on( 'wp-window-resized.wp-responsive', this.trigger.bind( this ) );

			// This needs to run later as UI Sortable may be initialized when the document is ready.
			$window.on( 'load.wp-responsive', this.maybeDisableSortables );
			$document.on( 'postbox-toggled', this.maybeDisableSortables );

			// When the screen columns are changed, potentially disable sortables.
			$( '#screen-options-wrap input' ).on( 'click', this.maybeDisableSortables );
		},

		/**
		 * Disable sortables if there is only one metabox, or the screen is in one column mode. Otherwise, enable sortables.
		 *
		 * @since 5.3.0
		 *
		 * @return {void}
		 */
		maybeDisableSortables: function() {
			var width = navigator.userAgent.indexOf('AppleWebKit/') > -1 ? $window.width() : window.innerWidth;

			if (
				( width <= 782 ) ||
				( 1 >= $sortables.find( '.ui-sortable-handle:visible' ).length && jQuery( '.columns-prefs-1 input' ).prop( 'checked' ) )
			) {
				this.disableSortables();
			} else {
				this.enableSortables();
			}
		},

		/**
		 * Changes properties of body and admin menu.
		 *
		 * Pins and unpins the menu and adds the auto-fold class to the body.
		 * Makes the admin menu responsive and disables the metabox sortables.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		activate: function() {
			setPinMenu();

			if ( ! $body.hasClass( 'auto-fold' ) ) {
				$body.addClass( 'auto-fold' );
			}

			$adminmenu.data( 'wp-responsive', 1 );
			this.disableSortables();
		},

		/**
		 * Changes properties of admin menu and enables metabox sortables.
		 *
		 * Pin and unpin the menu.
		 * Removes the responsiveness of the admin menu and enables the metabox sortables.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		deactivate: function() {
			setPinMenu();
			$adminmenu.removeData('wp-responsive');

			this.maybeDisableSortables();
		},

		/**
		 * Toggles the aria-haspopup attribute for the responsive admin menu.
		 *
		 * The aria-haspopup attribute is only necessary for the responsive menu.
		 * See ticket https://core.trac.wordpress.org/ticket/43095
		 *
		 * @since 6.6.0
		 *
		 * @param {string} action Whether to add or remove the aria-haspopup attribute.
		 *
		 * @return {void}
		 */
		toggleAriaHasPopup: function( action ) {
			var elements = $adminmenu.find( '[data-ariahaspopup]' );

			if ( action === 'add' ) {
				elements.each( function() {
					$( this ).attr( 'aria-haspopup', 'menu' ).attr( 'aria-expanded', 'false' );
				} );

				return;
			}

			elements.each( function() {
				$( this ).removeAttr( 'aria-haspopup' ).removeAttr( 'aria-expanded' );
			} );
		},

		/**
		 * Sets the responsiveness and enables the overlay based on the viewport width.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		trigger: function() {
			var viewportWidth = getViewportWidth();

			// Exclude IE < 9, it doesn't support @media CSS rules.
			if ( ! viewportWidth ) {
				return;
			}

			if ( viewportWidth <= 782 ) {
				if ( ! wpResponsiveActive ) {
					$document.trigger( 'wp-responsive-activate' );
					wpResponsiveActive = true;
				}
			} else {
				if ( wpResponsiveActive ) {
					$document.trigger( 'wp-responsive-deactivate' );
					wpResponsiveActive = false;
				}
			}

			if ( viewportWidth <= 480 ) {
				this.enableOverlay();
			} else {
				this.disableOverlay();
			}

			this.maybeDisableSortables();
		},

		/**
		 * Inserts a responsive overlay and toggles the window.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		enableOverlay: function() {
			if ( $overlay.length === 0 ) {
				$overlay = $( '<div id="wp-responsive-overlay"></div>' )
					.insertAfter( '#wpcontent' )
					.hide()
					.on( 'click.wp-responsive', function() {
						$toolbar.find( '.menupop.hover' ).removeClass( 'hover' );
						$( this ).hide();
					});
			}

			$toolbarPopups.on( 'click.wp-responsive', function() {
				$overlay.show();
			});
		},

		/**
		 * Disables the responsive overlay and removes the overlay.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		disableOverlay: function() {
			$toolbarPopups.off( 'click.wp-responsive' );
			$overlay.hide();
		},

		/**
		 * Disables sortables.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		disableSortables: function() {
			if ( $sortables.length ) {
				try {
					$sortables.sortable( 'disable' );
					$sortables.find( '.ui-sortable-handle' ).addClass( 'is-non-sortable' );
				} catch ( e ) {}
			}
		},

		/**
		 * Enables sortables.
		 *
		 * @since 3.8.0
		 *
		 * @return {void}
		 */
		enableSortables: function() {
			if ( $sortables.length ) {
				try {
					$sortables.sortable( 'enable' );
					$sortables.find( '.ui-sortable-handle' ).removeClass( 'is-non-sortable' );
				} catch ( e ) {}
			}
		}
	};

	/**
	 * Add an ARIA role `button` to elements that behave like UI controls when JavaScript is on.
	 *
	 * @since 4.5.0
	 *
	 * @return {void}
	 */
	function aria_button_if_js() {
		$( '.aria-button-if-js' ).attr( 'role', 'button' );
	}

	$( document ).on( 'ajaxComplete', function() {
		aria_button_if_js();
	});

	/**
	 * Get the viewport width.
	 *
	 * @since 4.7.0
	 *
	 * @return {number|boolean} The current viewport width or false if the
	 *                          browser doesn't support innerWidth (IE < 9).
	 */
	function getViewportWidth() {
		var viewportWidth = false;

		if ( window.innerWidth ) {
			// On phones, window.innerWidth is affected by zooming.
			viewportWidth = Math.max( window.innerWidth, document.documentElement.clientWidth );
		}

		return viewportWidth;
	}

	/**
	 * Sets the admin menu collapsed/expanded state.
	 *
	 * Sets the global variable `menuState` and triggers a custom event passing
	 * the current menu state.
	 *
	 * @since 4.7.0
	 *
	 * @return {void}
	 */
	function setMenuState() {
		var viewportWidth = getViewportWidth() || 961;

		if ( viewportWidth <= 782  ) {
			menuState = 'responsive';
		} else if ( $body.hasClass( 'folded' ) || ( $body.hasClass( 'auto-fold' ) && viewportWidth <= 960 && viewportWidth > 782 ) ) {
			menuState = 'folded';
		} else {
			menuState = 'open';
		}

		$document.trigger( 'wp-menu-state-set', { state: menuState } );
	}

	// Set the menu state when the window gets resized.
	$document.on( 'wp-window-resized.set-menu-state', setMenuState );

	/**
	 * Sets ARIA attributes on the collapse/expand menu button.
	 *
	 * When the admin menu is open or folded, updates the `aria-expanded` and
	 * `aria-label` attributes of the button to give feedback to assistive
	 * technologies. In the responsive view, the button is always hidden.
	 *
	 * @since 4.7.0
	 *
	 * @return {void}
	 */
	$document.on( 'wp-menu-state-set wp-collapse-menu', function( event, eventData ) {
		var $collapseButton = $( '#collapse-button' ),
			ariaExpanded, ariaLabelText;

		if ( 'folded' === eventData.state ) {
			ariaExpanded = 'false';
			ariaLabelText = __( 'Expand Main menu' );
		} else {
			ariaExpanded = 'true';
			ariaLabelText = __( 'Collapse Main menu' );
		}

		$collapseButton.attr({
			'aria-expanded': ariaExpanded,
			'aria-label': ariaLabelText
		});
	});

	window.wpResponsive.init();
	setPinMenu();
	setMenuState();
	makeNoticesDismissible();
	aria_button_if_js();

	$document.on( 'wp-pin-menu wp-window-resized.pin-menu postboxes-columnchange.pin-menu postbox-toggled.pin-menu wp-collapse-menu.pin-menu wp-scroll-start.pin-menu', setPinMenu );

	// Set initial focus on a specific element.
	$( '.wp-initial-focus' ).trigger( 'focus' );

	// Toggle update details on update-core.php.
	$body.on( 'click', '.js-update-details-toggle', function() {
		var $updateNotice = $( this ).closest( '.js-update-details' ),
			$progressDiv = $( '#' + $updateNotice.data( 'update-details' ) );

		/*
		 * When clicking on "Show details" move the progress div below the update
		 * notice. Make sure it gets moved just the first time.
		 */
		if ( ! $progressDiv.hasClass( 'update-details-moved' ) ) {
			$progressDiv.insertAfter( $updateNotice ).addClass( 'update-details-moved' );
		}

		// Toggle the progress div visibility.
		$progressDiv.toggle();
		// Toggle the Show Details button expanded state.
		$( this ).attr( 'aria-expanded', $progressDiv.is( ':visible' ) );
	});
});

/**
 * Hides the update button for expired plugin or theme uploads.
 *
 * On the "Update plugin/theme from uploaded zip" screen, once the upload has expired,
 * hides the "Replace current with uploaded" button and displays a warning.
 *
 * @since 5.5.0
 */
$( function( $ ) {
	var $overwrite, $warning;

	if ( ! $body.hasClass( 'update-php' ) ) {
		return;
	}

	$overwrite = $( 'a.update-from-upload-overwrite' );
	$warning   = $( '.update-from-upload-expired' );

	if ( ! $overwrite.length || ! $warning.length ) {
		return;
	}

	window.setTimeout(
		function() {
			$overwrite.hide();
			$warning.removeClass( 'hidden' );

			if ( window.wp && window.wp.a11y ) {
				window.wp.a11y.speak( $warning.text() );
			}
		},
		7140000 // 119 minutes. The uploaded file is deleted after 2 hours.
	);
} );

// Fire a custom jQuery event at the end of window resize.
( function() {
	var timeout;

	/**
	 * Triggers the WP window-resize event.
	 *
	 * @since 3.8.0
	 *
	 * @return {void}
	 */
	function triggerEvent() {
		$document.trigger( 'wp-window-resized' );
	}

	/**
	 * Fires the trigger event again after 200 ms.
	 *
	 * @since 3.8.0
	 *
	 * @return {void}
	 */
	function fireOnce() {
		window.clearTimeout( timeout );
		timeout = window.setTimeout( triggerEvent, 200 );
	}

	$window.on( 'resize.wp-fire-once', fireOnce );
}());

// Make Windows 8 devices play along nicely.
(function(){
	if ( '-ms-user-select' in document.documentElement.style && navigator.userAgent.match(/IEMobile\/10\.0/) ) {
		var msViewportStyle = document.createElement( 'style' );
		msViewportStyle.appendChild(
			document.createTextNode( '@-ms-viewport{width:auto!important}' )
		);
		document.getElementsByTagName( 'head' )[0].appendChild( msViewportStyle );
	}
})();

}( jQuery, window ));

/**
 * Freeze animated plugin icons when reduced motion is enabled.
 *
 * When the user has enabled the 'prefers-reduced-motion' setting, this module
 * stops animations for all GIFs on the page with the class 'plugin-icon' or
 * plugin icon images in the update plugins table.
 *
 * @since 6.4.0
 */
(function() {
	// Private variables and methods.
	var priv = {},
		pub = {},
		mediaQuery;

	// Initialize pauseAll to false; it will be set to true if reduced motion is preferred.
	priv.pauseAll = false;
	if ( window.matchMedia ) {
		mediaQuery = window.matchMedia( '(prefers-reduced-motion: reduce)' );
		if ( ! mediaQuery || mediaQuery.matches ) {
			priv.pauseAll = true;
		}
	}

	// Method to replace animated GIFs with a static frame.
	priv.freezeAnimatedPluginIcons = function( img ) {
		var coverImage = function() {
			var width = img.width;
			var height = img.height;
			var canvas = document.createElement( 'canvas' );

			// Set canvas dimensions.
			canvas.width = width;
			canvas.height = height;

			// Copy classes from the image to the canvas.
			canvas.className = img.className;

			// Check if the image is inside a specific table.
			var isInsideUpdateTable = img.closest( '#update-plugins-table' );

			if ( isInsideUpdateTable ) {
				// Transfer computed styles from image to canvas.
				var computedStyles = window.getComputedStyle( img ),
					i, max;
				for ( i = 0, max = computedStyles.length; i < max; i++ ) {
					var propName = computedStyles[ i ];
					var propValue = computedStyles.getPropertyValue( propName );
					canvas.style[ propName ] = propValue;
				}
			}

			// Draw the image onto the canvas.
			canvas.getContext( '2d' ).drawImage( img, 0, 0, width, height );

			// Set accessibility attributes on canvas.
			canvas.setAttribute( 'aria-hidden', 'true' );
			canvas.setAttribute( 'role', 'presentation' );

			// Insert canvas before the image and set the image to be near-invisible.
			var parent = img.parentNode;
			parent.insertBefore( canvas, img );
			img.style.opacity = 0.01;
			img.style.width = '0px';
			img.style.height = '0px';
		};

		// If the image is already loaded, apply the coverImage function.
		if ( img.complete ) {
			coverImage();
		} else {
			// Otherwise, wait for the image to load.
			img.addEventListener( 'load', coverImage, true );
		}
	};

	// Public method to freeze all relevant GIFs on the page.
	pub.freezeAll = function() {
		var images = document.querySelectorAll( '.plugin-icon, #update-plugins-table img' );
		for ( var x = 0; x < images.length; x++ ) {
			if ( /\.gif(?:\?|$)/i.test( images[ x ].src ) ) {
				priv.freezeAnimatedPluginIcons( images[ x ] );
			}
		}
	};

	// Only run the freezeAll method if the user prefers reduced motion.
	if ( true === priv.pauseAll ) {
		pub.freezeAll();
	}

	// Listen for jQuery AJAX events.
	( function( $ ) {
		if ( window.pagenow === 'plugin-install' ) {
			// Only listen for ajaxComplete if this is the plugin-install.php page.
			$( document ).ajaxComplete( function( event, xhr, settings ) {

				// Check if this is the 'search-install-plugins' request.
				if ( settings.data && typeof settings.data === 'string' && settings.data.includes( 'action=search-install-plugins' ) ) {
					// Recheck if the user prefers reduced motion.
					if ( window.matchMedia ) {
						var mediaQuery = window.matchMedia( '(prefers-reduced-motion: reduce)' );
						if ( mediaQuery.matches ) {
							pub.freezeAll();
						}
					} else {
						// Fallback for browsers that don't support matchMedia.
						if ( true === priv.pauseAll ) {
							pub.freezeAll();
						}
					}
				}
			} );
		}
	} )( jQuery );

	// Expose public methods.
	return pub;
})();
/**
 * @output wp-admin/js/gallery.js
 */

/* global unescape, getUserSetting, setUserSetting, wpgallery, tinymce */

jQuery( function($) {
	var gallerySortable, gallerySortableInit, sortIt, clearAll, w, desc = false;

	gallerySortableInit = function() {
		gallerySortable = $('#media-items').sortable( {
			items: 'div.media-item',
			placeholder: 'sorthelper',
			axis: 'y',
			distance: 2,
			handle: 'div.filename',
			stop: function() {
				// When an update has occurred, adjust the order for each item.
				var all = $('#media-items').sortable('toArray'), len = all.length;
				$.each(all, function(i, id) {
					var order = desc ? (len - i) : (1 + i);
					$('#' + id + ' .menu_order input').val(order);
				});
			}
		} );
	};

	sortIt = function() {
		var all = $('.menu_order_input'), len = all.length;
		all.each(function(i){
			var order = desc ? (len - i) : (1 + i);
			$(this).val(order);
		});
	};

	clearAll = function(c) {
		c = c || 0;
		$('.menu_order_input').each( function() {
			if ( this.value === '0' || c ) {
				this.value = '';
			}
		});
	};

	$('#asc').on( 'click', function( e ) {
		e.preventDefault();
		desc = false;
		sortIt();
	});
	$('#desc').on( 'click', function( e ) {
		e.preventDefault();
		desc = true;
		sortIt();
	});
	$('#clear').on( 'click', function( e ) {
		e.preventDefault();
		clearAll(1);
	});
	$('#showall').on( 'click', function( e ) {
		e.preventDefault();
		$('#sort-buttons span a').toggle();
		$('a.describe-toggle-on').hide();
		$('a.describe-toggle-off, table.slidetoggle').show();
		$('img.pinkynail').toggle(false);
	});
	$('#hideall').on( 'click', function( e ) {
		e.preventDefault();
		$('#sort-buttons span a').toggle();
		$('a.describe-toggle-on').show();
		$('a.describe-toggle-off, table.slidetoggle').hide();
		$('img.pinkynail').toggle(true);
	});

	// Initialize sortable.
	gallerySortableInit();
	clearAll();

	if ( $('#media-items>*').length > 1 ) {
		w = wpgallery.getWin();

		$('#save-all, #gallery-settings').show();
		if ( typeof w.tinyMCE !== 'undefined' && w.tinyMCE.activeEditor && ! w.tinyMCE.activeEditor.isHidden() ) {
			wpgallery.mcemode = true;
			wpgallery.init();
		} else {
			$('#insert-gallery').show();
		}
	}
});

/* gallery settings */
window.tinymce = null;

window.wpgallery = {
	mcemode : false,
	editor : {},
	dom : {},
	is_update : false,
	el : {},

	I : function(e) {
		return document.getElementById(e);
	},

	init: function() {
		var t = this, li, q, i, it, w = t.getWin();

		if ( ! t.mcemode ) {
			return;
		}

		li = ('' + document.location.search).replace(/^\?/, '').split('&');
		q = {};
		for (i=0; i<li.length; i++) {
			it = li[i].split('=');
			q[unescape(it[0])] = unescape(it[1]);
		}

		if ( q.mce_rdomain ) {
			document.domain = q.mce_rdomain;
		}

		// Find window & API.
		window.tinymce = w.tinymce;
		window.tinyMCE = w.tinyMCE;
		t.editor = tinymce.EditorManager.activeEditor;

		t.setup();
	},

	getWin : function() {
		return window.dialogArguments || opener || parent || top;
	},

	setup : function() {
		var t = this, a, ed = t.editor, g, columns, link, order, orderby;
		if ( ! t.mcemode ) {
			return;
		}

		t.el = ed.selection.getNode();

		if ( t.el.nodeName !== 'IMG' || ! ed.dom.hasClass(t.el, 'wpGallery') ) {
			if ( ( g = ed.dom.select('img.wpGallery') ) && g[0] ) {
				t.el = g[0];
			} else {
				if ( getUserSetting('galfile') === '1' ) {
					t.I('linkto-file').checked = 'checked';
				}
				if ( getUserSetting('galdesc') === '1' ) {
					t.I('order-desc').checked = 'checked';
				}
				if ( getUserSetting('galcols') ) {
					t.I('columns').value = getUserSetting('galcols');
				}
				if ( getUserSetting('galord') ) {
					t.I('orderby').value = getUserSetting('galord');
				}
				jQuery('#insert-gallery').show();
				return;
			}
		}

		a = ed.dom.getAttrib(t.el, 'title');
		a = ed.dom.decode(a);

		if ( a ) {
			jQuery('#update-gallery').show();
			t.is_update = true;

			columns = a.match(/columns=['"]([0-9]+)['"]/);
			link = a.match(/link=['"]([^'"]+)['"]/i);
			order = a.match(/order=['"]([^'"]+)['"]/i);
			orderby = a.match(/orderby=['"]([^'"]+)['"]/i);

			if ( link && link[1] ) {
				t.I('linkto-file').checked = 'checked';
			}
			if ( order && order[1] ) {
				t.I('order-desc').checked = 'checked';
			}
			if ( columns && columns[1] ) {
				t.I('columns').value = '' + columns[1];
			}
			if ( orderby && orderby[1] ) {
				t.I('orderby').value = orderby[1];
			}
		} else {
			jQuery('#insert-gallery').show();
		}
	},

	update : function() {
		var t = this, ed = t.editor, all = '', s;

		if ( ! t.mcemode || ! t.is_update ) {
			s = '[gallery' + t.getSettings() + ']';
			t.getWin().send_to_editor(s);
			return;
		}

		if ( t.el.nodeName !== 'IMG' ) {
			return;
		}

		all = ed.dom.decode( ed.dom.getAttrib( t.el, 'title' ) );
		all = all.replace(/\s*(order|link|columns|orderby)=['"]([^'"]+)['"]/gi, '');
		all += t.getSettings();

		ed.dom.setAttrib(t.el, 'title', all);
		t.getWin().tb_remove();
	},

	getSettings : function() {
		var I = this.I, s = '';

		if ( I('linkto-file').checked ) {
			s += ' link="file"';
			setUserSetting('galfile', '1');
		}

		if ( I('order-desc').checked ) {
			s += ' order="DESC"';
			setUserSetting('galdesc', '1');
		}

		if ( I('columns').value !== 3 ) {
			s += ' columns="' + I('columns').value + '"';
			setUserSetting('galcols', I('columns').value);
		}

		if ( I('orderby').value !== 'menu_order' ) {
			s += ' orderby="' + I('orderby').value + '"';
			setUserSetting('galord', I('orderby').value);
		}

		return s;
	}
};
/**
 * The functions necessary for editing images.
 *
 * @since 2.9.0
 * @output wp-admin/js/image-edit.js
 */

 /* global ajaxurl, confirm */

(function($) {
	var __ = wp.i18n.__;

	/**
	 * Contains all the methods to initialize and control the image editor.
	 *
	 * @namespace imageEdit
	 */
	var imageEdit = window.imageEdit = {
	iasapi : {},
	hold : {},
	postid : '',
	_view : false,

	/**
	 * Enable crop tool.
	 */
	toggleCropTool: function( postid, nonce, cropButton ) {
		var img = $( '#image-preview-' + postid ),
			selection = this.iasapi.getSelection();

		imageEdit.toggleControls( cropButton );
		var $el = $( cropButton );
		var state = ( $el.attr( 'aria-expanded' ) === 'true' ) ? 'true' : 'false';
		// Crop tools have been closed.
		if ( 'false' === state ) {
			// Cancel selection, but do not unset inputs.
			this.iasapi.cancelSelection();
			imageEdit.setDisabled($('.imgedit-crop-clear'), 0);
		} else {
			imageEdit.setDisabled($('.imgedit-crop-clear'), 1);
			// Get values from inputs to restore previous selection.
			var startX = ( $( '#imgedit-start-x-' + postid ).val() ) ? $('#imgedit-start-x-' + postid).val() : 0;
			var startY = ( $( '#imgedit-start-y-' + postid ).val() ) ? $('#imgedit-start-y-' + postid).val() : 0;
			var width = ( $( '#imgedit-sel-width-' + postid ).val() ) ? $('#imgedit-sel-width-' + postid).val() : img.innerWidth();
			var height = ( $( '#imgedit-sel-height-' + postid ).val() ) ? $('#imgedit-sel-height-' + postid).val() : img.innerHeight();
			// Ensure selection is available, otherwise reset to full image.
			if ( isNaN( selection.x1 ) ) {
				this.setCropSelection( postid, { 'x1': startX, 'y1': startY, 'x2': width, 'y2': height, 'width': width, 'height': height } );
				selection = this.iasapi.getSelection();
			}

			// If we don't already have a selection, select the entire image.
			if ( 0 === selection.x1 && 0 === selection.y1 && 0 === selection.x2 && 0 === selection.y2 ) {
				this.iasapi.setSelection( 0, 0, img.innerWidth(), img.innerHeight(), true );
				this.iasapi.setOptions( { show: true } );
				this.iasapi.update();
			} else {
				this.iasapi.setSelection( startX, startY, width, height, true );
				this.iasapi.setOptions( { show: true } );
				this.iasapi.update();
			}
		}
	},

	/**
	 * Handle crop tool clicks.
	 */
	handleCropToolClick: function( postid, nonce, cropButton ) {

		if ( cropButton.classList.contains( 'imgedit-crop-clear' ) ) {
			this.iasapi.cancelSelection();
			imageEdit.setDisabled($('.imgedit-crop-apply'), 0);

			$('#imgedit-sel-width-' + postid).val('');
			$('#imgedit-sel-height-' + postid).val('');
			$('#imgedit-start-x-' + postid).val('0');
			$('#imgedit-start-y-' + postid).val('0');
			$('#imgedit-selection-' + postid).val('');
		} else {
			// Otherwise, perform the crop.
			imageEdit.crop( postid, nonce , cropButton );
		}
	},

	/**
	 * Converts a value to an integer.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} f The float value that should be converted.
	 *
	 * @return {number} The integer representation from the float value.
	 */
	intval : function(f) {
		/*
		 * Bitwise OR operator: one of the obscure ways to truncate floating point figures,
		 * worth reminding JavaScript doesn't have a distinct "integer" type.
		 */
		return f | 0;
	},

	/**
	 * Adds the disabled attribute and class to a single form element or a field set.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {jQuery}         el The element that should be modified.
	 * @param {boolean|number} s  The state for the element. If set to true
	 *                            the element is disabled,
	 *                            otherwise the element is enabled.
	 *                            The function is sometimes called with a 0 or 1
	 *                            instead of true or false.
	 *
	 * @return {void}
	 */
	setDisabled : function( el, s ) {
		/*
		 * `el` can be a single form element or a fieldset. Before #28864, the disabled state on
		 * some text fields  was handled targeting $('input', el). Now we need to handle the
		 * disabled state on buttons too so we can just target `el` regardless if it's a single
		 * element or a fieldset because when a fieldset is disabled, its descendants are disabled too.
		 */
		if ( s ) {
			el.removeClass( 'disabled' ).prop( 'disabled', false );
		} else {
			el.addClass( 'disabled' ).prop( 'disabled', true );
		}
	},

	/**
	 * Initializes the image editor.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 *
	 * @return {void}
	 */
	init : function(postid) {
		var t = this, old = $('#image-editor-' + t.postid);

		if ( t.postid !== postid && old.length ) {
			t.close(t.postid);
		}

		t.hold.sizer = parseFloat( $('#imgedit-sizer-' + postid).val() );
		t.postid = postid;
		$('#imgedit-response-' + postid).empty();

		$('#imgedit-panel-' + postid).on( 'keypress', function(e) {
			var nonce = $( '#imgedit-nonce-' + postid ).val();
			if ( e.which === 26 && e.ctrlKey ) {
				imageEdit.undo( postid, nonce );
			}

			if ( e.which === 25 && e.ctrlKey ) {
				imageEdit.redo( postid, nonce );
			}
		});

		$('#imgedit-panel-' + postid).on( 'keypress', 'input[type="text"]', function(e) {
			var k = e.keyCode;

			// Key codes 37 through 40 are the arrow keys.
			if ( 36 < k && k < 41 ) {
				$(this).trigger( 'blur' );
			}

			// The key code 13 is the Enter key.
			if ( 13 === k ) {
				e.preventDefault();
				e.stopPropagation();
				return false;
			}
		});

		$( document ).on( 'image-editor-ui-ready', this.focusManager );
	},

	/**
	 * Calculate the image size and save it to memory.
	 *
	 * @since 6.7.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 *
	 * @return {void}
	 */
	calculateImgSize: function( postid ) {
		var t = this,
		x = t.intval( $( '#imgedit-x-' + postid ).val() ),
		y = t.intval( $( '#imgedit-y-' + postid ).val() );

		t.hold.w = t.hold.ow = x;
		t.hold.h = t.hold.oh = y;
		t.hold.xy_ratio = x / y;
		t.hold.sizer = parseFloat( $( '#imgedit-sizer-' + postid ).val() );
		t.currentCropSelection = null;
	},

	/**
	 * Toggles the wait/load icon in the editor.
	 *
	 * @since 2.9.0
	 * @since 5.5.0 Added the triggerUIReady parameter.
	 *
	 * @memberof imageEdit
	 *
	 * @param {number}  postid         The post ID.
	 * @param {number}  toggle         Is 0 or 1, fades the icon in when 1 and out when 0.
	 * @param {boolean} triggerUIReady Whether to trigger a custom event when the UI is ready. Default false.
	 *
	 * @return {void}
	 */
	toggleEditor: function( postid, toggle, triggerUIReady ) {
		var wait = $('#imgedit-wait-' + postid);

		if ( toggle ) {
			wait.fadeIn( 'fast' );
		} else {
			wait.fadeOut( 'fast', function() {
				if ( triggerUIReady ) {
					$( document ).trigger( 'image-editor-ui-ready' );
				}
			} );
		}
	},

	/**
	 * Shows or hides image menu popup.
	 *
	 * @since 6.3.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {HTMLElement} el The activated control element.
	 *
	 * @return {boolean} Always returns false.
	 */
	togglePopup : function(el) {
		var $el = $( el );
		var $targetEl = $( el ).attr( 'aria-controls' );
		var $target = $( '#' + $targetEl );
		$el
			.attr( 'aria-expanded', 'false' === $el.attr( 'aria-expanded' ) ? 'true' : 'false' );
		// Open menu and set z-index to appear above image crop area if it is enabled.
		$target
			.toggleClass( 'imgedit-popup-menu-open' ).slideToggle( 'fast' ).css( { 'z-index' : 200000 } );
		// Move focus to first item in menu when opening menu.
		if ( 'true' === $el.attr( 'aria-expanded' ) ) {
			$target.find( 'button' ).first().trigger( 'focus' );
		}

		return false;
	},

	/**
	 * Observes whether the popup should remain open based on focus position.
	 *
	 * @since 6.4.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {HTMLElement} el The activated control element.
	 *
	 * @return {boolean} Always returns false.
	 */
	monitorPopup : function() {
		var $parent = document.querySelector( '.imgedit-rotate-menu-container' );
		var $toggle = document.querySelector( '.imgedit-rotate-menu-container .imgedit-rotate' );

		setTimeout( function() {
			var $focused = document.activeElement;
			var $contains = $parent.contains( $focused );

			// If $focused is defined and not inside the menu container, close the popup.
			if ( $focused && ! $contains ) {
				if ( 'true' === $toggle.getAttribute( 'aria-expanded' ) ) {
					imageEdit.togglePopup( $toggle );
				}
			}
		}, 100 );

		return false;
	},

	/**
	 * Navigate popup menu by arrow keys.
	 *
	 * @since 6.3.0
	 * @since 6.7.0 Added the event parameter.
	 *
	 * @memberof imageEdit
	 *
	 * @param {Event} event The key or click event.
	 * @param {HTMLElement} el The current element.
	 *
	 * @return {boolean} Always returns false.
	 */
	browsePopup : function(event, el) {
		var $el = $( el );
		var $collection = $( el ).parent( '.imgedit-popup-menu' ).find( 'button' );
		var $index = $collection.index( $el );
		var $prev = $index - 1;
		var $next = $index + 1;
		var $last = $collection.length;
		if ( $prev < 0 ) {
			$prev = $last - 1;
		}
		if ( $next === $last ) {
			$next = 0;
		}
		var target = false;
		if ( event.keyCode === 40 ) {
			target = $collection.get( $next );
		} else if ( event.keyCode === 38 ) {
			target = $collection.get( $prev );
		}
		if ( target ) {
			target.focus();
			event.preventDefault();
		}

		return false;
	},

	/**
	 * Close popup menu and reset focus on feature activation.
	 *
	 * @since 6.3.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {HTMLElement} el The current element.
	 *
	 * @return {boolean} Always returns false.
	 */
	closePopup : function(el) {
		var $parent = $(el).parent( '.imgedit-popup-menu' );
		var $controlledID = $parent.attr( 'id' );
		var $target = $( 'button[aria-controls="' + $controlledID + '"]' );
		$target
			.attr( 'aria-expanded', 'false' ).trigger( 'focus' );
		$parent
			.toggleClass( 'imgedit-popup-menu-open' ).slideToggle( 'fast' );

		return false;
	},

	/**
	 * Shows or hides the image edit help box.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {HTMLElement} el The element to create the help window in.
	 *
	 * @return {boolean} Always returns false.
	 */
	toggleHelp : function(el) {
		var $el = $( el );
		$el
			.attr( 'aria-expanded', 'false' === $el.attr( 'aria-expanded' ) ? 'true' : 'false' )
			.parents( '.imgedit-group-top' ).toggleClass( 'imgedit-help-toggled' ).find( '.imgedit-help' ).slideToggle( 'fast' );

		return false;
	},

	/**
	 * Shows or hides image edit input fields when enabled.
	 *
	 * @since 6.3.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {HTMLElement} el The element to trigger the edit panel.
	 *
	 * @return {boolean} Always returns false.
	 */
	toggleControls : function(el) {
		var $el = $( el );
		var $target = $( '#' + $el.attr( 'aria-controls' ) );
		$el
			.attr( 'aria-expanded', 'false' === $el.attr( 'aria-expanded' ) ? 'true' : 'false' );
		$target
			.parent( '.imgedit-group' ).toggleClass( 'imgedit-panel-active' );

		return false;
	},

	/**
	 * Gets the value from the image edit target.
	 *
	 * The image edit target contains the image sizes where the (possible) changes
	 * have to be applied to.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 *
	 * @return {string} The value from the imagedit-save-target input field when available,
	 *                  'full' when not selected, or 'all' if it doesn't exist.
	 */
	getTarget : function( postid ) {
		var element = $( '#imgedit-save-target-' + postid );

		if ( element.length ) {
			return element.find( 'input[name="imgedit-target-' + postid + '"]:checked' ).val() || 'full';
		}

		return 'all';
	},

	/**
	 * Recalculates the height or width and keeps the original aspect ratio.
	 *
	 * If the original image size is exceeded a red exclamation mark is shown.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number}         postid The current post ID.
	 * @param {number}         x      Is 0 when it applies the y-axis
	 *                                and 1 when applicable for the x-axis.
	 * @param {jQuery}         el     Element.
	 *
	 * @return {void}
	 */
	scaleChanged : function( postid, x, el ) {
		var w = $('#imgedit-scale-width-' + postid), h = $('#imgedit-scale-height-' + postid),
		warn = $('#imgedit-scale-warn-' + postid), w1 = '', h1 = '',
		scaleBtn = $('#imgedit-scale-button');

		if ( false === this.validateNumeric( el ) ) {
			return;
		}

		if ( x ) {
			h1 = ( w.val() !== '' ) ? Math.round( w.val() / this.hold.xy_ratio ) : '';
			h.val( h1 );
		} else {
			w1 = ( h.val() !== '' ) ? Math.round( h.val() * this.hold.xy_ratio ) : '';
			w.val( w1 );
		}

		if ( ( h1 && h1 > this.hold.oh ) || ( w1 && w1 > this.hold.ow ) ) {
			warn.css('visibility', 'visible');
			scaleBtn.prop('disabled', true);
		} else {
			warn.css('visibility', 'hidden');
			scaleBtn.prop('disabled', false);
		}
	},

	/**
	 * Gets the selected aspect ratio.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 *
	 * @return {string} The aspect ratio.
	 */
	getSelRatio : function(postid) {
		var x = this.hold.w, y = this.hold.h,
			X = this.intval( $('#imgedit-crop-width-' + postid).val() ),
			Y = this.intval( $('#imgedit-crop-height-' + postid).val() );

		if ( X && Y ) {
			return X + ':' + Y;
		}

		if ( x && y ) {
			return x + ':' + y;
		}

		return '1:1';
	},

	/**
	 * Removes the last action from the image edit history.
	 * The history consist of (edit) actions performed on the image.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid  The post ID.
	 * @param {number} setSize 0 or 1, when 1 the image resets to its original size.
	 *
	 * @return {string} JSON string containing the history or an empty string if no history exists.
	 */
	filterHistory : function(postid, setSize) {
		// Apply undo state to history.
		var history = $('#imgedit-history-' + postid).val(), pop, n, o, i, op = [];

		if ( history !== '' ) {
			// Read the JSON string with the image edit history.
			history = JSON.parse(history);
			pop = this.intval( $('#imgedit-undone-' + postid).val() );
			if ( pop > 0 ) {
				while ( pop > 0 ) {
					history.pop();
					pop--;
				}
			}

			// Reset size to its original state.
			if ( setSize ) {
				if ( !history.length ) {
					this.hold.w = this.hold.ow;
					this.hold.h = this.hold.oh;
					return '';
				}

				// Restore original 'o'.
				o = history[history.length - 1];

				// c = 'crop', r = 'rotate', f = 'flip'.
				o = o.c || o.r || o.f || false;

				if ( o ) {
					// fw = Full image width.
					this.hold.w = o.fw;
					// fh = Full image height.
					this.hold.h = o.fh;
				}
			}

			// Filter the last step/action from the history.
			for ( n in history ) {
				i = history[n];
				if ( i.hasOwnProperty('c') ) {
					op[n] = { 'c': { 'x': i.c.x, 'y': i.c.y, 'w': i.c.w, 'h': i.c.h, 'r': i.c.r } };
				} else if ( i.hasOwnProperty('r') ) {
					op[n] = { 'r': i.r.r };
				} else if ( i.hasOwnProperty('f') ) {
					op[n] = { 'f': i.f.f };
				}
			}
			return JSON.stringify(op);
		}
		return '';
	},
	/**
	 * Binds the necessary events to the image.
	 *
	 * When the image source is reloaded the image will be reloaded.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number}   postid   The post ID.
	 * @param {string}   nonce    The nonce to verify the request.
	 * @param {function} callback Function to execute when the image is loaded.
	 *
	 * @return {void}
	 */
	refreshEditor : function(postid, nonce, callback) {
		var t = this, data, img;

		t.toggleEditor(postid, 1);
		data = {
			'action': 'imgedit-preview',
			'_ajax_nonce': nonce,
			'postid': postid,
			'history': t.filterHistory(postid, 1),
			'rand': t.intval(Math.random() * 1000000)
		};

		img = $( '<img id="image-preview-' + postid + '" alt="" />' )
			.on( 'load', { history: data.history }, function( event ) {
				var max1, max2,
					parent = $( '#imgedit-crop-' + postid ),
					t = imageEdit,
					historyObj;

				// Checks if there already is some image-edit history.
				if ( '' !== event.data.history ) {
					historyObj = JSON.parse( event.data.history );
					// If last executed action in history is a crop action.
					if ( historyObj[historyObj.length - 1].hasOwnProperty( 'c' ) ) {
						/*
						 * A crop action has completed and the crop button gets disabled
						 * ensure the undo button is enabled.
						 */
						t.setDisabled( $( '#image-undo-' + postid) , true );
						// Move focus to the undo button to avoid a focus loss.
						$( '#image-undo-' + postid ).trigger( 'focus' );
					}
				}

				parent.empty().append(img);

				// w, h are the new full size dimensions.
				max1 = Math.max( t.hold.w, t.hold.h );
				max2 = Math.max( $(img).width(), $(img).height() );
				t.hold.sizer = max1 > max2 ? max2 / max1 : 1;

				t.initCrop(postid, img, parent);

				if ( (typeof callback !== 'undefined') && callback !== null ) {
					callback();
				}

				if ( $('#imgedit-history-' + postid).val() && $('#imgedit-undone-' + postid).val() === '0' ) {
					$('button.imgedit-submit-btn', '#imgedit-panel-' + postid).prop('disabled', false);
				} else {
					$('button.imgedit-submit-btn', '#imgedit-panel-' + postid).prop('disabled', true);
				}
				var successMessage = __( 'Image updated.' );

				t.toggleEditor(postid, 0);
				wp.a11y.speak( successMessage, 'assertive' );
			})
			.on( 'error', function() {
				var errorMessage = __( 'Could not load the preview image. Please reload the page and try again.' );

				$( '#imgedit-crop-' + postid )
					.empty()
					.append( '<div class="notice notice-error" tabindex="-1" role="alert"><p>' + errorMessage + '</p></div>' );

				t.toggleEditor( postid, 0, true );
				wp.a11y.speak( errorMessage, 'assertive' );
			} )
			.attr('src', ajaxurl + '?' + $.param(data));
	},
	/**
	 * Performs an image edit action.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 * @param {string} nonce  The nonce to verify the request.
	 * @param {string} action The action to perform on the image.
	 *                        The possible actions are: "scale" and "restore".
	 *
	 * @return {boolean|void} Executes a post request that refreshes the page
	 *                        when the action is performed.
	 *                        Returns false if an invalid action is given,
	 *                        or when the action cannot be performed.
	 */
	action : function(postid, nonce, action) {
		var t = this, data, w, h, fw, fh;

		if ( t.notsaved(postid) ) {
			return false;
		}

		data = {
			'action': 'image-editor',
			'_ajax_nonce': nonce,
			'postid': postid
		};

		if ( 'scale' === action ) {
			w = $('#imgedit-scale-width-' + postid),
			h = $('#imgedit-scale-height-' + postid),
			fw = t.intval(w.val()),
			fh = t.intval(h.val());

			if ( fw < 1 ) {
				w.trigger( 'focus' );
				return false;
			} else if ( fh < 1 ) {
				h.trigger( 'focus' );
				return false;
			}

			if ( fw === t.hold.ow || fh === t.hold.oh ) {
				return false;
			}

			data['do'] = 'scale';
			data.fwidth = fw;
			data.fheight = fh;
		} else if ( 'restore' === action ) {
			data['do'] = 'restore';
		} else {
			return false;
		}

		t.toggleEditor(postid, 1);
		$.post( ajaxurl, data, function( response ) {
			$( '#image-editor-' + postid ).empty().append( response.data.html );
			t.toggleEditor( postid, 0, true );
			// Refresh the attachment model so that changes propagate.
			if ( t._view ) {
				t._view.refresh();
			}
		} ).done( function( response ) {
			// Whether the executed action was `scale` or `restore`, the response does have a message.
			if ( response && response.data.message.msg ) {
				wp.a11y.speak( response.data.message.msg );
				return;
			}

			if ( response && response.data.message.error ) {
				wp.a11y.speak( response.data.message.error );
			}
		} );
	},

	/**
	 * Stores the changes that are made to the image.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number}  postid   The post ID to get the image from the database.
	 * @param {string}  nonce    The nonce to verify the request.
	 *
	 * @return {boolean|void}  If the actions are successfully saved a response message is shown.
	 *                         Returns false if there is no image editing history,
	 *                         thus there are not edit-actions performed on the image.
	 */
	save : function(postid, nonce) {
		var data,
			target = this.getTarget(postid),
			history = this.filterHistory(postid, 0),
			self = this;

		if ( '' === history ) {
			return false;
		}

		this.toggleEditor(postid, 1);
		data = {
			'action': 'image-editor',
			'_ajax_nonce': nonce,
			'postid': postid,
			'history': history,
			'target': target,
			'context': $('#image-edit-context').length ? $('#image-edit-context').val() : null,
			'do': 'save'
		};
		// Post the image edit data to the backend.
		$.post( ajaxurl, data, function( response ) {
			// If a response is returned, close the editor and show an error.
			if ( response.data.error ) {
				$( '#imgedit-response-' + postid )
					.html( '<div class="notice notice-error" tabindex="-1" role="alert"><p>' + response.data.error + '</p></div>' );

				imageEdit.close(postid);
				wp.a11y.speak( response.data.error );
				return;
			}

			if ( response.data.fw && response.data.fh ) {
				$( '#media-dims-' + postid ).html( response.data.fw + ' &times; ' + response.data.fh );
			}

			if ( response.data.thumbnail ) {
				$( '.thumbnail', '#thumbnail-head-' + postid ).attr( 'src', '' + response.data.thumbnail );
			}

			if ( response.data.msg ) {
				$( '#imgedit-response-' + postid )
					.html( '<div class="notice notice-success" tabindex="-1" role="alert"><p>' + response.data.msg + '</p></div>' );

				wp.a11y.speak( response.data.msg );
			}

			if ( self._view ) {
				self._view.save();
			} else {
				imageEdit.close(postid);
			}
		});
	},

	/**
	 * Creates the image edit window.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid   The post ID for the image.
	 * @param {string} nonce    The nonce to verify the request.
	 * @param {Object} view     The image editor view to be used for the editing.
	 *
	 * @return {void|promise} Either returns void if the button was already activated
	 *                        or returns an instance of the image editor, wrapped in a promise.
	 */
	open : function( postid, nonce, view ) {
		this._view = view;

		var dfd, data,
			elem = $( '#image-editor-' + postid ),
			head = $( '#media-head-' + postid ),
			btn = $( '#imgedit-open-btn-' + postid ),
			spin = btn.siblings( '.spinner' );

		/*
		 * Instead of disabling the button, which causes a focus loss and makes screen
		 * readers announce "unavailable", return if the button was already clicked.
		 */
		if ( btn.hasClass( 'button-activated' ) ) {
			return;
		}

		spin.addClass( 'is-active' );

		data = {
			'action': 'image-editor',
			'_ajax_nonce': nonce,
			'postid': postid,
			'do': 'open'
		};

		dfd = $.ajax( {
			url:  ajaxurl,
			type: 'post',
			data: data,
			beforeSend: function() {
				btn.addClass( 'button-activated' );
			}
		} ).done( function( response ) {
			var errorMessage;

			if ( '-1' === response ) {
				errorMessage = __( 'Could not load the preview image.' );
				elem.html( '<div class="notice notice-error" tabindex="-1" role="alert"><p>' + errorMessage + '</p></div>' );
			}

			if ( response.data && response.data.html ) {
				elem.html( response.data.html );
			}

			head.fadeOut( 'fast', function() {
				elem.fadeIn( 'fast', function() {
					if ( errorMessage ) {
						$( document ).trigger( 'image-editor-ui-ready' );
					}
				} );
				btn.removeClass( 'button-activated' );
				spin.removeClass( 'is-active' );
			} );
			// Initialize the Image Editor now that everything is ready.
			imageEdit.init( postid );
		} );

		return dfd;
	},

	/**
	 * Initializes the cropping tool and sets a default cropping selection.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 *
	 * @return {void}
	 */
	imgLoaded : function(postid) {
		var img = $('#image-preview-' + postid), parent = $('#imgedit-crop-' + postid);

		// Ensure init has run even when directly loaded.
		if ( 'undefined' === typeof this.hold.sizer ) {
			this.init( postid );
		}
		this.calculateImgSize( postid );

		this.initCrop(postid, img, parent);
		this.setCropSelection( postid, { 'x1': 0, 'y1': 0, 'x2': 0, 'y2': 0, 'width': img.innerWidth(), 'height': img.innerHeight() } );

		this.toggleEditor( postid, 0, true );
	},

	/**
	 * Manages keyboard focus in the Image Editor user interface.
	 *
	 * @since 5.5.0
	 *
	 * @return {void}
	 */
	focusManager: function() {
		/*
		 * Editor is ready. Move focus to one of the admin alert notices displayed
		 * after a user action or to the first focusable element. Since the DOM
		 * update is pretty large, the timeout helps browsers update their
		 * accessibility tree to better support assistive technologies.
		 */
		setTimeout( function() {
			var elementToSetFocusTo = $( '.notice[role="alert"]' );

			if ( ! elementToSetFocusTo.length ) {
				elementToSetFocusTo = $( '.imgedit-wrap' ).find( ':tabbable:first' );
			}

			elementToSetFocusTo.attr( 'tabindex', '-1' ).trigger( 'focus' );
		}, 100 );
	},

	/**
	 * Initializes the cropping tool.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number}      postid The post ID.
	 * @param {HTMLElement} image  The preview image.
	 * @param {HTMLElement} parent The preview image container.
	 *
	 * @return {void}
	 */
	initCrop : function(postid, image, parent) {
		var t = this,
			selW = $('#imgedit-sel-width-' + postid),
			selH = $('#imgedit-sel-height-' + postid),
			$image = $( image ),
			$img;

		// Already initialized?
		if ( $image.data( 'imgAreaSelect' ) ) {
			return;
		}

		t.iasapi = $image.imgAreaSelect({
			parent: parent,
			instance: true,
			handles: true,
			keys: true,
			minWidth: 3,
			minHeight: 3,

			/**
			 * Sets the CSS styles and binds events for locking the aspect ratio.
			 *
			 * @ignore
			 *
			 * @param {jQuery} img The preview image.
			 */
			onInit: function( img ) {
				// Ensure that the imgAreaSelect wrapper elements are position:absolute
				// (even if we're in a position:fixed modal).
				$img = $( img );
				$img.next().css( 'position', 'absolute' )
					.nextAll( '.imgareaselect-outer' ).css( 'position', 'absolute' );
				/**
				 * Binds mouse down event to the cropping container.
				 *
				 * @return {void}
				 */
				parent.children().on( 'mousedown touchstart', function(e) {
					var ratio = false,
					 	sel = t.iasapi.getSelection(),
					 	cx = t.intval( $( '#imgedit-crop-width-' + postid ).val() ),
					 	cy = t.intval( $( '#imgedit-crop-height-' + postid ).val() );

					if ( cx && cy ) {
						ratio = t.getSelRatio( postid );
					} else if ( e.shiftKey && sel && sel.width && sel.height ) {
						ratio = sel.width + ':' + sel.height;
					}

					t.iasapi.setOptions({
						aspectRatio: ratio
					});
				});
			},

			/**
			 * Event triggered when starting a selection.
			 *
			 * @ignore
			 *
			 * @return {void}
			 */
			onSelectStart: function() {
				imageEdit.setDisabled($('#imgedit-crop-sel-' + postid), 1);
				imageEdit.setDisabled($('.imgedit-crop-clear'), 1);
				imageEdit.setDisabled($('.imgedit-crop-apply'), 1);
			},
			/**
			 * Event triggered when the selection is ended.
			 *
			 * @ignore
			 *
			 * @param {Object} img jQuery object representing the image.
			 * @param {Object} c   The selection.
			 *
			 * @return {Object}
			 */
			onSelectEnd: function(img, c) {
				imageEdit.setCropSelection(postid, c);
				if ( ! $('#imgedit-crop > *').is(':visible') ) {
					imageEdit.toggleControls($('.imgedit-crop.button'));
				}
			},

			/**
			 * Event triggered when the selection changes.
			 *
			 * @ignore
			 *
			 * @param {Object} img jQuery object representing the image.
			 * @param {Object} c   The selection.
			 *
			 * @return {void}
			 */
			onSelectChange: function(img, c) {
				var sizer = imageEdit.hold.sizer,
					oldSel = imageEdit.currentCropSelection;

				if ( oldSel != null && oldSel.width == c.width && oldSel.height == c.height ) {
					return;
				}

				selW.val( Math.min( imageEdit.hold.w, imageEdit.round( c.width / sizer ) ) );
				selH.val( Math.min( imageEdit.hold.h, imageEdit.round( c.height / sizer ) ) );

				t.currentCropSelection = c;
			}
		});
	},

	/**
	 * Stores the current crop selection.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 * @param {Object} c      The selection.
	 *
	 * @return {boolean}
	 */
	setCropSelection : function(postid, c) {
		var sel,
			selW = $( '#imgedit-sel-width-' + postid ),
			selH = $( '#imgedit-sel-height-' + postid ),
			sizer = this.hold.sizer,
			hold = this.hold;

		c = c || 0;

		if ( !c || ( c.width < 3 && c.height < 3 ) ) {
			this.setDisabled( $( '.imgedit-crop', '#imgedit-panel-' + postid ), 1 );
			this.setDisabled( $( '#imgedit-crop-sel-' + postid ), 1 );
			$('#imgedit-sel-width-' + postid).val('');
			$('#imgedit-sel-height-' + postid).val('');
			$('#imgedit-start-x-' + postid).val('0');
			$('#imgedit-start-y-' + postid).val('0');
			$('#imgedit-selection-' + postid).val('');
			return false;
		}

		// adjust the selection within the bounds of the image on 100% scale
		var excessW = hold.w - ( Math.round( c.x1 / sizer ) + parseInt( selW.val() ) );
		var excessH = hold.h - ( Math.round( c.y1 / sizer ) + parseInt( selH.val() ) );
		var x = Math.round( c.x1 / sizer ) + Math.min( 0, excessW );
		var y = Math.round( c.y1 / sizer ) + Math.min( 0, excessH );

		// use 100% scaling to prevent rounding errors
		sel = { 'r': 1, 'x': x, 'y': y, 'w': selW.val(), 'h': selH.val() };

		this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
		$('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
	},


	/**
	 * Closes the image editor.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number}  postid The post ID.
	 * @param {boolean} warn   Warning message.
	 *
	 * @return {void|boolean} Returns false if there is a warning.
	 */
	close : function(postid, warn) {
		warn = warn || false;

		if ( warn && this.notsaved(postid) ) {
			return false;
		}

		this.iasapi = {};
		this.hold = {};

		// If we've loaded the editor in the context of a Media Modal,
		// then switch to the previous view, whatever that might have been.
		if ( this._view ){
			this._view.back();
		}

		// In case we are not accessing the image editor in the context of a View,
		// close the editor the old-school way.
		else {
			$('#image-editor-' + postid).fadeOut('fast', function() {
				$( '#media-head-' + postid ).fadeIn( 'fast', function() {
					// Move focus back to the Edit Image button. Runs also when saving.
					$( '#imgedit-open-btn-' + postid ).trigger( 'focus' );
				});
				$(this).empty();
			});
		}


	},

	/**
	 * Checks if the image edit history is saved.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 *
	 * @return {boolean} Returns true if the history is not saved.
	 */
	notsaved : function(postid) {
		var h = $('#imgedit-history-' + postid).val(),
			history = ( h !== '' ) ? JSON.parse(h) : [],
			pop = this.intval( $('#imgedit-undone-' + postid).val() );

		if ( pop < history.length ) {
			if ( confirm( $('#imgedit-leaving-' + postid).text() ) ) {
				return false;
			}
			return true;
		}
		return false;
	},

	/**
	 * Adds an image edit action to the history.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {Object} op     The original position.
	 * @param {number} postid The post ID.
	 * @param {string} nonce  The nonce.
	 *
	 * @return {void}
	 */
	addStep : function(op, postid, nonce) {
		var t = this, elem = $('#imgedit-history-' + postid),
			history = ( elem.val() !== '' ) ? JSON.parse( elem.val() ) : [],
			undone = $( '#imgedit-undone-' + postid ),
			pop = t.intval( undone.val() );

		while ( pop > 0 ) {
			history.pop();
			pop--;
		}
		undone.val(0); // Reset.

		history.push(op);
		elem.val( JSON.stringify(history) );

		t.refreshEditor(postid, nonce, function() {
			t.setDisabled($('#image-undo-' + postid), true);
			t.setDisabled($('#image-redo-' + postid), false);
		});
	},

	/**
	 * Rotates the image.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {string} angle  The angle the image is rotated with.
	 * @param {number} postid The post ID.
	 * @param {string} nonce  The nonce.
	 * @param {Object} t      The target element.
	 *
	 * @return {boolean}
	 */
	rotate : function(angle, postid, nonce, t) {
		if ( $(t).hasClass('disabled') ) {
			return false;
		}
		this.closePopup(t);
		this.addStep({ 'r': { 'r': angle, 'fw': this.hold.h, 'fh': this.hold.w }}, postid, nonce);

		// Clear the selection fields after rotating.
		$( '#imgedit-sel-width-' + postid ).val( '' );
		$( '#imgedit-sel-height-' + postid ).val( '' );
		this.currentCropSelection = null;
	},

	/**
	 * Flips the image.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} axis   The axle the image is flipped on.
	 * @param {number} postid The post ID.
	 * @param {string} nonce  The nonce.
	 * @param {Object} t      The target element.
	 *
	 * @return {boolean}
	 */
	flip : function (axis, postid, nonce, t) {
		if ( $(t).hasClass('disabled') ) {
			return false;
		}
		this.closePopup(t);
		this.addStep({ 'f': { 'f': axis, 'fw': this.hold.w, 'fh': this.hold.h }}, postid, nonce);

		// Clear the selection fields after flipping.
		$( '#imgedit-sel-width-' + postid ).val( '' );
		$( '#imgedit-sel-height-' + postid ).val( '' );
		this.currentCropSelection = null;
	},

	/**
	 * Crops the image.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 * @param {string} nonce  The nonce.
	 * @param {Object} t      The target object.
	 *
	 * @return {void|boolean} Returns false if the crop button is disabled.
	 */
	crop : function (postid, nonce, t) {
		var sel = $('#imgedit-selection-' + postid).val(),
			w = this.intval( $('#imgedit-sel-width-' + postid).val() ),
			h = this.intval( $('#imgedit-sel-height-' + postid).val() );

		if ( $(t).hasClass('disabled') || sel === '' ) {
			return false;
		}

		sel = JSON.parse(sel);
		if ( sel.w > 0 && sel.h > 0 && w > 0 && h > 0 ) {
			sel.fw = w;
			sel.fh = h;
			this.addStep({ 'c': sel }, postid, nonce);
		}

		// Clear the selection fields after cropping.
		$( '#imgedit-sel-width-' + postid ).val( '' );
		$( '#imgedit-sel-height-' + postid ).val( '' );
		$( '#imgedit-start-x-' + postid ).val( '0' );
		$( '#imgedit-start-y-' + postid ).val( '0' );
		this.currentCropSelection = null;
	},

	/**
	 * Undoes an image edit action.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid   The post ID.
	 * @param {string} nonce    The nonce.
	 *
	 * @return {void|false} Returns false if the undo button is disabled.
	 */
	undo : function (postid, nonce) {
		var t = this, button = $('#image-undo-' + postid), elem = $('#imgedit-undone-' + postid),
			pop = t.intval( elem.val() ) + 1;

		if ( button.hasClass('disabled') ) {
			return;
		}

		elem.val(pop);
		t.refreshEditor(postid, nonce, function() {
			var elem = $('#imgedit-history-' + postid),
				history = ( elem.val() !== '' ) ? JSON.parse( elem.val() ) : [];

			t.setDisabled($('#image-redo-' + postid), true);
			t.setDisabled(button, pop < history.length);
			// When undo gets disabled, move focus to the redo button to avoid a focus loss.
			if ( history.length === pop ) {
				$( '#image-redo-' + postid ).trigger( 'focus' );
			}
		});
	},

	/**
	 * Reverts a undo action.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 * @param {string} nonce  The nonce.
	 *
	 * @return {void}
	 */
	redo : function(postid, nonce) {
		var t = this, button = $('#image-redo-' + postid), elem = $('#imgedit-undone-' + postid),
			pop = t.intval( elem.val() ) - 1;

		if ( button.hasClass('disabled') ) {
			return;
		}

		elem.val(pop);
		t.refreshEditor(postid, nonce, function() {
			t.setDisabled($('#image-undo-' + postid), true);
			t.setDisabled(button, pop > 0);
			// When redo gets disabled, move focus to the undo button to avoid a focus loss.
			if ( 0 === pop ) {
				$( '#image-undo-' + postid ).trigger( 'focus' );
			}
		});
	},

	/**
	 * Sets the selection for the height and width in pixels.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid The post ID.
	 * @param {jQuery} el     The element containing the values.
	 *
	 * @return {void|boolean} Returns false when the x or y value is lower than 1,
	 *                        void when the value is not numeric or when the operation
	 *                        is successful.
	 */
	setNumSelection : function( postid, el ) {
		var sel, elX = $('#imgedit-sel-width-' + postid), elY = $('#imgedit-sel-height-' + postid),
			elX1 = $('#imgedit-start-x-' + postid), elY1 = $('#imgedit-start-y-' + postid),
			xS = this.intval( elX1.val() ), yS = this.intval( elY1.val() ),
			x = this.intval( elX.val() ), y = this.intval( elY.val() ),
			img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
			sizer = this.hold.sizer, x1, y1, x2, y2, ias = this.iasapi;

		this.currentCropSelection = null;

		if ( false === this.validateNumeric( el ) ) {
			return;
		}

		if ( x < 1 ) {
			elX.val('');
			return false;
		}

		if ( y < 1 ) {
			elY.val('');
			return false;
		}

		if ( ( ( x && y ) || ( xS && yS ) ) && ( sel = ias.getSelection() ) ) {
			x2 = sel.x1 + Math.round( x * sizer );
			y2 = sel.y1 + Math.round( y * sizer );
			x1 = ( xS === sel.x1 ) ? sel.x1 : Math.round( xS * sizer );
			y1 = ( yS === sel.y1 ) ? sel.y1 : Math.round( yS * sizer );

			if ( x2 > imgw ) {
				x1 = 0;
				x2 = imgw;
				elX.val( Math.min( this.hold.w, Math.round( x2 / sizer ) ) );
			}

			if ( y2 > imgh ) {
				y1 = 0;
				y2 = imgh;
				elY.val( Math.min( this.hold.h, Math.round( y2 / sizer ) ) );
			}

			ias.setSelection( x1, y1, x2, y2 );
			ias.update();
			this.setCropSelection(postid, ias.getSelection());
			this.currentCropSelection = ias.getSelection();
		}
	},

	/**
	 * Rounds a number to a whole.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} num The number.
	 *
	 * @return {number} The number rounded to a whole number.
	 */
	round : function(num) {
		var s;
		num = Math.round(num);

		if ( this.hold.sizer > 0.6 ) {
			return num;
		}

		s = num.toString().slice(-1);

		if ( '1' === s ) {
			return num - 1;
		} else if ( '9' === s ) {
			return num + 1;
		}

		return num;
	},

	/**
	 * Sets a locked aspect ratio for the selection.
	 *
	 * @since 2.9.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {number} postid     The post ID.
	 * @param {number} n          The ratio to set.
	 * @param {jQuery} el         The element containing the values.
	 *
	 * @return {void}
	 */
	setRatioSelection : function(postid, n, el) {
		var sel, r, x = this.intval( $('#imgedit-crop-width-' + postid).val() ),
			y = this.intval( $('#imgedit-crop-height-' + postid).val() ),
			h = $('#image-preview-' + postid).height();

		if ( false === this.validateNumeric( el ) ) {
			this.iasapi.setOptions({
				aspectRatio: null
			});

			return;
		}

		if ( x && y ) {
			this.iasapi.setOptions({
				aspectRatio: x + ':' + y
			});

			if ( sel = this.iasapi.getSelection(true) ) {
				r = Math.ceil( sel.y1 + ( ( sel.x2 - sel.x1 ) / ( x / y ) ) );

				if ( r > h ) {
					r = h;
					var errorMessage = __( 'Selected crop ratio exceeds the boundaries of the image. Try a different ratio.' );

					$( '#imgedit-crop-' + postid )
						.prepend( '<div class="notice notice-error" tabindex="-1" role="alert"><p>' + errorMessage + '</p></div>' );

					wp.a11y.speak( errorMessage, 'assertive' );
					if ( n ) {
						$('#imgedit-crop-height-' + postid).val( '' );
					} else {
						$('#imgedit-crop-width-' + postid).val( '');
					}
				} else {
					var error = $( '#imgedit-crop-' + postid ).find( '.notice-error' );
					if ( 'undefined' !== typeof( error ) ) {
						error.remove();
					}
				}

				this.iasapi.setSelection( sel.x1, sel.y1, sel.x2, r );
				this.iasapi.update();
			}
		}
	},

	/**
	 * Validates if a value in a jQuery.HTMLElement is numeric.
	 *
	 * @since 4.6.0
	 *
	 * @memberof imageEdit
	 *
	 * @param {jQuery} el The html element.
	 *
	 * @return {void|boolean} Returns false if the value is not numeric,
	 *                        void when it is.
	 */
	validateNumeric: function( el ) {
		if ( false === this.intval( $( el ).val() ) ) {
			$( el ).val( '' );
			return false;
		}
	}
};
})(jQuery);
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RegExp("^(?=.*"+e+").+","i"),this.each(function(e){i=[e.get("name"),e.get("description")].join(" "),e.set("search_matched",t.test(i))})}}),p.Widgets.availableWidgets=new p.Widgets.WidgetCollection(p.Widgets.data.availableWidgets),p.Widgets.SidebarModel=Backbone.Model.extend({after_title:null,after_widget:null,before_title:null,before_widget:null,class:null,description:null,id:null,name:null,is_rendered:!1}),p.Widgets.SidebarCollection=Backbone.Collection.extend({model:p.Widgets.SidebarModel}),p.Widgets.registeredSidebars=new p.Widgets.SidebarCollection(p.Widgets.data.registeredSidebars),p.Widgets.AvailableWidgetsPanelView=u.Backbone.View.extend({el:"#available-widgets",events:{"input #widgets-search":"search","focus .widget-tpl":"focus","click .widget-tpl":"_submit","keypress .widget-tpl":"_submit",keydown:"keyboardAccessible"},selected:null,currentSidebarControl:null,$search:null,$clearResults:null,searchMatchesCount:null,initialize:function(){var t=this;this.$search=h("#widgets-search"),this.$clearResults=this.$el.find(".clear-results"),_.bindAll(this,"close"),this.listenTo(this.collection,"change",this.updateList),this.updateList(),this.searchMatchesCount=this.collection.length,h("#customize-controls, #available-widgets .customize-section-title").on("click keydown",function(e){e=h(e.target).is(".add-new-widget, .add-new-widget *");h("body").hasClass("adding-widget")&&!e&&t.close()}),this.$clearResults.on("click",function(){t.$search.val("").trigger("focus").trigger("input")}),p.previewer.bind("url",this.close)},search:_.debounce(function(e){var t;this.collection.doSearch(e.target.value),this.updateSearchMatchesCount(),this.announceSearchMatches(),this.selected&&!this.selected.is(":visible")&&(this.selected.removeClass("selected"),this.selected=null),this.selected&&!e.target.value&&(this.selected.removeClass("selected"),this.selected=null),!this.selected&&e.target.value&&(t=this.$el.find("> 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t=h("#widget-tpl-"+e.id);t.toggle(e.get("search_matched")&&!e.get("is_disabled")),e.get("is_disabled")&&t.is(this.selected)&&(this.selected=null)})},select:function(e){this.selected=h(e),this.selected.siblings(".widget-tpl").removeClass("selected"),this.selected.addClass("selected")},focus:function(e){this.select(h(e.currentTarget))},_submit:function(e){"keypress"===e.type&&13!==e.which&&32!==e.which||this.submit(h(e.currentTarget))},submit:function(e){(e=e||this.selected)&&this.currentSidebarControl&&(this.select(e),e=h(this.selected).data("widget-id"),e=this.collection.findWhere({id:e}))&&((e=this.currentSidebarControl.addWidget(e.get("id_base")))&&e.focus(),this.close())},open:function(e){this.currentSidebarControl=e,_(this.currentSidebarControl.getWidgetFormControls()).each(function(e){e.params.is_wide&&e.collapseForm()}),p.section.has("publish_settings")&&p.section("publish_settings").collapse(),h("body").addClass("adding-widget"),this.$el.find(".selected").removeClass("selected"),this.collection.doSearch(""),p.settings.browser.mobile||this.$search.trigger("focus")},close:function(e){(e=e||{}).returnFocus&&this.currentSidebarControl&&this.currentSidebarControl.container.find(".add-new-widget").focus(),this.currentSidebarControl=null,this.selected=null,h("body").removeClass("adding-widget"),this.$search.val("").trigger("input")},keyboardAccessible:function(e){var t=13===e.which,i=27===e.which,n=40===e.which,s=38===e.which,d=9===e.which,a=e.shiftKey,o=null,r=this.$el.find("> .widget-tpl:visible:first"),l=this.$el.find("> .widget-tpl:visible:last"),c=h(e.target).is(this.$search),g=h(e.target).is(".widget-tpl:visible:last");n||s?(n?c?o=r:this.selected&&0!==this.selected.nextAll(".widget-tpl:visible").length&&(o=this.selected.nextAll(".widget-tpl:visible:first")):s&&(c?o=l:this.selected&&0!==this.selected.prevAll(".widget-tpl:visible").length&&(o=this.selected.prevAll(".widget-tpl:visible:first"))),this.select(o),(o||this.$search).trigger("focus")):t&&!this.$search.val()||(t?this.submit():i&&this.close({returnFocus:!0}),this.currentSidebarControl&&d&&(a&&c||!a&&g)&&(this.currentSidebarControl.container.find(".add-new-widget").focus(),e.preventDefault()))}}),p.Widgets.formSyncHandlers={rss:function(e,t,i){var n=t.find(".widget-error:first"),i=h("<div>"+i+"</div>").find(".widget-error:first");n.length&&i.length?n.replaceWith(i):n.length?n.remove():i.length&&t.find(".widget-content:first").prepend(i)}},p.Widgets.WidgetControl=p.Control.extend({defaultExpandedArguments:{duration:"fast",completeCallback:h.noop},initialize:function(e,t){var i=this;i.widgetControlEmbedded=!1,i.widgetContentEmbedded=!1,i.expanded=new p.Value(!1),i.expandedArgumentsQueue=[],i.expanded.bind(function(e){var t=i.expandedArgumentsQueue.shift(),t=h.extend({},i.defaultExpandedArguments,t);i.onChangeExpanded(e,t)}),i.altNotice=!0,p.Control.prototype.initialize.call(i,e,t)},ready:function(){var n=this;n.section()?p.section(n.section(),function(t){function i(e){e&&(n.embedWidgetControl(),t.expanded.unbind(i))}t.expanded()?i(!0):t.expanded.bind(i)}):n.embedWidgetControl()},embedWidgetControl:function(){var e,t=this;t.widgetControlEmbedded||(t.widgetControlEmbedded=!0,e=h(t.params.widget_control),t.container.append(e),t._setupModel(),t._setupWideWidget(),t._setupControlToggle(),t._setupWidgetTitle(),t._setupReorderUI(),t._setupHighlightEffects(),t._setupUpdateUI(),t._setupRemoveUI())},embedWidgetContent:function(){var e,t=this;t.embedWidgetControl(),t.widgetContentEmbedded||(t.widgetContentEmbedded=!0,t.notifications.container=t.getNotificationsContainerElement(),t.notifications.render(),e=h(t.params.widget_content),t.container.find(".widget-content:first").append(e),h(document).trigger("widget-added",[t.container.find(".widget:first")]))},_setupModel:function(){var i=this,e=function(){p.Widgets.savedWidgetIds[i.params.widget_id]=!0};p.bind("ready",e),p.bind("saved",e),this._updateCount=0,this.isWidgetUpdating=!1,this.liveUpdateMode=!0,this.setting.bind(function(e,t){_(t).isEqual(e)||i.isWidgetUpdating||i.updateWidget({instance:e})})},_setupWideWidget:function(){var n,s,e,t,i,d=this;!this.params.is_wide||h(window).width()<=640||(n=this.container.find(".widget-inside"),s=n.find("> .form"),e=h(".wp-full-overlay-sidebar-content:first"),this.container.addClass("wide-widget-control"),this.container.find(".form:first").css({"max-width":this.params.width,"min-height":this.params.height}),i=function(){var e=d.container.offset().top,t=h(window).height(),i=s.outerHeight();n.css("max-height",t),e=Math.max(0,Math.min(Math.max(e,0),t-i)),n.css("top",e)},t=h("#customize-theme-controls"),this.container.on("expand",function(){i(),e.on("scroll",i),h(window).on("resize",i),t.on("expanded collapsed",i)}),this.container.on("collapsed",function(){e.off("scroll",i),h(window).off("resize",i),t.off("expanded collapsed",i)}),p.each(function(e){0===e.id.indexOf("sidebars_widgets[")&&e.bind(function(){d.container.hasClass("expanded")&&i()})}))},_setupControlToggle:function(){var t=this;this.container.find(".widget-top").on("click",function(e){e.preventDefault(),t.getSidebarWidgetsControl().isReordering||t.expanded(!t.expanded())}),this.container.find(".widget-control-close").on("click",function(){t.collapse(),t.container.find(".widget-top .widget-action:first").focus()})},_setupWidgetTitle:function(){var i=this,e=function(){var e=i.setting().title,t=i.container.find(".in-widget-title");e?t.text(": "+e):t.text("")};this.setting.bind(e),e()},_setupReorderUI:function(){var t,e,d=this,s=function(e){e.siblings(".selected").removeClass("selected"),e.addClass("selected");e=e.data("id")===d.params.sidebar_id;d.container.find(".move-widget-btn").prop("disabled",e)};this.container.find(".widget-title-action").after(h(p.Widgets.data.tpl.widgetReorderNav)),e=_.template(p.Widgets.data.tpl.moveWidgetArea),t=h(e({sidebars:_(p.Widgets.registeredSidebars.toArray()).pluck("attributes")})),this.container.find(".widget-top").after(t),(e=function(){var 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t,i;"keypress"===e.type&&13!==e.which&&32!==e.which||(h(this).trigger("focus"),h(this).is(".move-widget")?d.toggleWidgetMoveArea():(e=h(this).is(".move-widget-down"),t=h(this).is(".move-widget-up"),i=d.getWidgetSidebarPosition(),t&&0===i||e&&i===d.getSidebarWidgetsControl().setting().length-1||(t?(d.moveUp(),u.a11y.speak(f.widgetMovedUp)):(d.moveDown(),u.a11y.speak(f.widgetMovedDown)),h(this).trigger("focus"))))}),this.container.find(".widget-area-select").on("click keypress","li",function(e){"keypress"===e.type&&13!==e.which&&32!==e.which||(e.preventDefault(),s(h(this)))}),this.container.find(".move-widget-btn").click(function(){d.getSidebarWidgetsControl().toggleReordering(!1);var e=d.params.sidebar_id,t=d.container.find(".widget-area-select li.selected").data("id"),e=p("sidebars_widgets["+e+"]"),t=p("sidebars_widgets["+t+"]"),i=Array.prototype.slice.call(e()),n=Array.prototype.slice.call(t()),s=d.getWidgetSidebarPosition();i.splice(s,1),n.push(d.params.widget_id),e(i),t(n),d.focus()})},_setupHighlightEffects:function(){var e=this;this.container.on("mouseenter click",function(){e.setting.previewer.send("highlight-widget",e.params.widget_id)}),this.setting.bind(function(){e.setting.previewer.send("highlight-widget",e.params.widget_id)})},_setupUpdateUI:function(){var t,i,n=this,s=this.container.find(".widget:first"),e=s.find(".widget-content:first"),d=this.container.find(".widget-control-save");d.val(f.saveBtnLabel),d.attr("title",f.saveBtnTooltip),d.removeClass("button-primary"),d.on("click",function(e){e.preventDefault(),n.updateWidget({disable_form:!0})}),t=_.debounce(function(){n.updateWidget()},250),e.on("keydown","input",function(e){13===e.which&&(e.preventDefault(),n.updateWidget({ignoreActiveElement:!0}))}),e.on("change input propertychange",":input",function(e){n.liveUpdateMode&&("change"===e.type||this.checkValidity&&this.checkValidity())&&t()}),this.setting.previewer.channel.bind("synced",function(){n.container.removeClass("previewer-loading")}),p.previewer.bind("widget-updated",function(e){e===n.params.widget_id&&n.container.removeClass("previewer-loading")}),(i=p.Widgets.formSyncHandlers[this.params.widget_id_base])&&h(document).on("widget-synced",function(e,t){s.is(t)&&i.apply(document,arguments)})},onChangeActive:function(e,t){this.container.toggleClass("widget-rendered",e),t.completeCallback&&t.completeCallback()},_setupRemoveUI:function(){var e,s=this,t=this.container.find(".widget-control-remove");t.on("click",function(){var n=s.container.next().is(".customize-control-widget_form")?s.container.next().find(".widget-action:first"):s.container.prev().is(".customize-control-widget_form")?s.container.prev().find(".widget-action:first"):s.container.next(".customize-control-sidebar_widgets").find(".add-new-widget:first");s.container.slideUp(function(){var e,t,i=p.Widgets.getSidebarWidgetControlContainingWidget(s.params.widget_id);i&&(e=i.setting().slice(),-1!==(t=_.indexOf(e,s.params.widget_id)))&&(e.splice(t,1),i.setting(e),n.focus())})}),e=function(){t.text(f.removeBtnLabel),t.attr("title",f.removeBtnTooltip)},this.params.is_new?p.bind("saved",e):e()},_getInputs:function(e){return h(e).find(":input[name]")},_getInputsSignature:function(e){return _(e).map(function(e){e=h(e),e=e.is(":checkbox, :radio")?[e.attr("id"),e.attr("name"),e.prop("value")]:[e.attr("id"),e.attr("name")];return e.join(",")}).join(";")},_getInputState:function(e){return(e=h(e)).is(":radio, :checkbox")?e.prop("checked"):e.is("select[multiple]")?e.find("option:selected").map(function(){return h(this).val()}).get():e.val()},_setInputState:function(e,t){(e=h(e)).is(":radio, :checkbox")?e.prop("checked",t):e.is("select[multiple]")?(t=Array.isArray(t)?_.map(t,function(e){return String(e)}):[],e.find("option").each(function(){h(this).prop("selected",-1!==_.indexOf(t,String(this.value)))})):e.val(t)},getSidebarWidgetsControl:function(){var e="sidebars_widgets["+this.params.sidebar_id+"]",e=p.control(e);if(e)return e},updateWidget:function(s){var d,a,o,r,e,l,t,i,c,g=this;g.embedWidgetContent(),i=(s=h.extend({instance:null,complete:null,ignoreActiveElement:!1},s)).instance,d=s.complete,this._updateCount+=1,r=this._updateCount,a=this.container.find(".widget:first"),(o=a.find(".widget-content:first")).find(".widget-error").remove(),this.container.addClass("widget-form-loading"),this.container.addClass("previewer-loading"),(t=p.state("processing"))(t()+1),this.liveUpdateMode||this.container.addClass("widget-form-disabled"),(e={action:"update-widget",wp_customize:"on"}).nonce=p.settings.nonce["update-widget"],e.customize_theme=p.settings.theme.stylesheet,e.customized=u.customize.previewer.query().customized,e=h.param(e),(l=this._getInputs(o)).each(function(){h(this).data("state"+r,g._getInputState(this))}),e=(e+=i?"&"+h.param({sanitized_widget_setting:JSON.stringify(i)}):"&"+l.serialize())+"&"+o.find("~ :input").serialize(),this._previousUpdateRequest&&this._previousUpdateRequest.abort(),i=h.post(u.ajax.settings.url,e),(this._previousUpdateRequest=i).done(function(e){var n,t,i=!1;"0"===e?(p.previewer.preview.iframe.hide(),p.previewer.login().done(function(){g.updateWidget(s),p.previewer.preview.iframe.show()})):"-1"===e?p.previewer.cheatin():e.success?(t=h("<div>"+e.data.form+"</div>"),n=g._getInputs(t),(t=g._getInputsSignature(l)===g._getInputsSignature(n))&&!g.liveUpdateMode&&(g.liveUpdateMode=!0,g.container.removeClass("widget-form-disabled"),g.container.find('input[name="savewidget"]').hide()),t&&g.liveUpdateMode?(l.each(function(e){var t=h(this),e=h(n[e]),i=t.data("state"+r),e=g._getInputState(e);t.data("sanitized",e),_.isEqual(i,e)||!s.ignoreActiveElement&&t.is(document.activeElement)||g._setInputState(t,e)}),h(document).trigger("widget-synced",[a,e.data.form])):g.liveUpdateMode?(g.liveUpdateMode=!1,g.container.find('input[name="savewidget"]').show(),i=!0):(o.html(e.data.form),g.container.removeClass("widget-form-disabled"),h(document).trigger("widget-updated",[a])),(c=!i&&!_(g.setting()).isEqual(e.data.instance))?(g.isWidgetUpdating=!0,g.setting(e.data.instance),g.isWidgetUpdating=!1):g.container.removeClass("previewer-loading"),d&&d.call(g,null,{noChange:!c,ajaxFinished:!0})):(t=f.error,e.data&&e.data.message&&(t=e.data.message),d?d.call(g,t):o.prepend('<p class="widget-error"><strong>'+t+"</strong></p>"))}),i.fail(function(e,t){d&&d.call(g,t)}),i.always(function(){g.container.removeClass("widget-form-loading"),l.each(function(){h(this).removeData("state"+r)}),t(t()-1)})},expandControlSection:function(){p.Control.prototype.expand.call(this)},_toggleExpanded:p.Section.prototype._toggleExpanded,expand:p.Section.prototype.expand,expandForm:function(){this.expand()},collapse:p.Section.prototype.collapse,collapseForm:function(){this.collapse()},toggleForm:function(e){void 0===e&&(e=!this.expanded()),this.expanded(e)},onChangeExpanded:function(e,t){var i,n,s,d,a,o=this;o.embedWidgetControl(),e&&o.embedWidgetContent(),t.unchanged?e&&p.Control.prototype.expand.call(o,{completeCallback:t.completeCallback}):(i=this.container.find("div.widget:first"),n=i.find(".widget-inside:first"),e=function(){p.control.each(function(e){o.params.type===e.params.type&&o!==e&&e.collapse()}),s=function(){o.container.removeClass("expanding"),o.container.addClass("expanded"),i.addClass("open"),a.attr("aria-expanded","true"),o.container.trigger("expanded")},t.completeCallback&&(d=s,s=function(){d(),t.completeCallback()}),o.params.is_wide?n.fadeIn(t.duration,s):n.slideDown(t.duration,s),o.container.trigger("expand"),o.container.addClass("expanding")},"false"===(a=this.container.find(".widget-top button.widget-action")).attr("aria-expanded")?p.section.has(o.section())?p.section(o.section()).expand({completeCallback:e}):e():(s=function(){o.container.removeClass("collapsing"),o.container.removeClass("expanded"),i.removeClass("open"),a.attr("aria-expanded","false"),o.container.trigger("collapsed")},t.completeCallback&&(d=s,s=function(){d(),t.completeCallback()}),o.container.trigger("collapse"),o.container.addClass("collapsing"),o.params.is_wide?n.fadeOut(t.duration,s):n.slideUp(t.duration,function(){i.css({width:"",margin:""}),s()})))},getWidgetSidebarPosition:function(){var e=this.getSidebarWidgetsControl().setting(),e=_.indexOf(e,this.params.widget_id);if(-1!==e)return e},moveUp:function(){this._moveWidgetByOne(-1)},moveDown:function(){this._moveWidgetByOne(1)},_moveWidgetByOne:function(e){var t=this.getWidgetSidebarPosition(),i=this.getSidebarWidgetsControl().setting,n=Array.prototype.slice.call(i()),s=n[t+e];n[t+e]=this.params.widget_id,n[t]=s,i(n)},toggleWidgetMoveArea:function(e){var t=this,i=this.container.find(".move-widget-area");(e=void 0===e?!i.hasClass("active"):e)&&(i.find(".selected").removeClass("selected"),i.find("li").filter(function(){return h(this).data("id")===t.params.sidebar_id}).addClass("selected"),this.container.find(".move-widget-btn").prop("disabled",!0)),i.toggleClass("active",e)},highlightSectionAndControl:function(){var e=this.container.is(":hidden")?this.container.closest(".control-section"):this.container;h(".highlighted").removeClass("highlighted"),e.addClass("highlighted"),setTimeout(function(){e.removeClass("highlighted")},500)}}),p.Widgets.WidgetsPanel=p.Panel.extend({ready:function(){var d=this;p.Panel.prototype.ready.call(d),d.deferred.embedded.done(function(){var t,i,n,e=d.container.find(".panel-meta"),s=h("<div></div>",{class:"no-widget-areas-rendered-notice",role:"alert"});e.append(s),i=function(){return _.filter(d.sections(),function(e){return"sidebar"===e.params.type&&e.active()}).length},n=function(){var e=i();return 0===e||e!==p.Widgets.data.registeredSidebars.length},(t=function(){var e,t=i();s.empty(),t!==(e=p.Widgets.data.registeredSidebars.length)&&((e=0!==t?f.someAreasShown[e-t]:f.noAreasShown)&&s.append(h("<p></p>",{text:e})),s.append(h("<p></p>",{text:f.navigatePreview})))})(),s.toggle(n()),p.previewer.deferred.active.done(function(){s.toggle(n())}),p.bind("pane-contents-reflowed",function(){var e="resolved"===p.previewer.deferred.active.state()?"fast":0;t(),n()?s.slideDown(e):s.slideUp(e)})})},isContextuallyActive:function(){return this.active()}}),p.Widgets.SidebarSection=p.Section.extend({ready:function(){var t;p.Section.prototype.ready.call(this),t=p.Widgets.registeredSidebars.get(this.params.sidebarId),this.active.bind(function(e){t.set("is_rendered",e)}),t.set("is_rendered",this.active())}}),p.Widgets.SidebarControl=p.Control.extend({ready:function(){this.$controlSection=this.container.closest(".control-section"),this.$sectionContent=this.container.closest(".accordion-section-content"),this._setupModel(),this._setupSortable(),this._setupAddition(),this._applyCardinalOrderClassNames()},_setupModel:function(){var s=this;this.setting.bind(function(i,e){var t,n,e=_(e).difference(i);i=_(i).filter(function(e){e=c(e);return!!p.Widgets.availableWidgets.findWhere({id_base:e.id_base})}),(t=_(i).map(function(e){return p.Widgets.getWidgetFormControlForWidget(e)||s.addWidget(e)})).sort(function(e,t){return _.indexOf(i,e.params.widget_id)-_.indexOf(i,t.params.widget_id)}),n=0,_(t).each(function(e){e.priority(n),e.section(s.section()),n+=1}),s.priority(n),s._applyCardinalOrderClassNames(),_(t).each(function(e){e.params.sidebar_id=s.params.sidebar_id}),_(e).each(function(n){setTimeout(function(){var e,t,i=!1;p.each(function(e){e.id!==s.setting.id&&0===e.id.indexOf("sidebars_widgets[")&&"sidebars_widgets[wp_inactive_widgets]"!==e.id&&(e=e(),-1!==_.indexOf(e,n))&&(i=!0)}),i||(t=(e=p.Widgets.getWidgetFormControlForWidget(n))&&h.contains(document,e.container[0])&&!h.contains(s.$sectionContent[0],e.container[0]),e&&!t&&(p.control.remove(e.id),e.container.remove()),p.Widgets.savedWidgetIds[n]&&((t=p.value("sidebars_widgets[wp_inactive_widgets]")().slice()).push(n),p.value("sidebars_widgets[wp_inactive_widgets]")(_(t).unique())),e=c(n).id_base,(t=p.Widgets.availableWidgets.findWhere({id_base:e}))&&!t.get("is_multi")&&t.set("is_disabled",!1))})})})},_setupSortable:function(){var t=this;this.isReordering=!1,this.$sectionContent.sortable({items:"> .customize-control-widget_form",handle:".widget-top",axis:"y",tolerance:"pointer",connectWith:".accordion-section-content:has(.customize-control-sidebar_widgets)",update:function(){var e=t.$sectionContent.sortable("toArray"),e=h.map(e,function(e){return h("#"+e).find(":input[name=widget-id]").val()});t.setting(e)}}),this.$controlSection.find(".accordion-section-title").droppable({accept:".customize-control-widget_form",over:function(){p.section(t.section.get()).expand({allowMultiple:!0,completeCallback:function(){p.section.each(function(e){e.container.find(".customize-control-sidebar_widgets").length&&e.container.find(".accordion-section-content:first").sortable("refreshPositions")})}})}}),this.container.find(".reorder-toggle").on("click",function(){t.toggleReordering(!t.isReordering)})},_setupAddition:function(){var t=this;this.container.find(".add-new-widget").on("click",function(){var e=h(this);t.$sectionContent.hasClass("reordering")||(h("body").hasClass("adding-widget")?(e.attr("aria-expanded","false"),p.Widgets.availableWidgetsPanel.close()):(e.attr("aria-expanded","true"),p.Widgets.availableWidgetsPanel.open(t)))})},_applyCardinalOrderClassNames:function(){var t=[];_.each(this.setting(),function(e){e=p.Widgets.getWidgetFormControlForWidget(e);e&&t.push(e)}),0===t.length||1===p.Widgets.registeredSidebars.length&&t.length<=1?this.container.find(".reorder-toggle").hide():(this.container.find(".reorder-toggle").show(),h(t).each(function(){h(this.container).removeClass("first-widget").removeClass("last-widget").find(".move-widget-down, .move-widget-up").prop("tabIndex",0)}),_.first(t).container.addClass("first-widget").find(".move-widget-up").prop("tabIndex",-1),_.last(t).container.addClass("last-widget").find(".move-widget-down").prop("tabIndex",-1))},toggleReordering:function(e){var t=this.$sectionContent.find(".add-new-widget"),i=this.container.find(".reorder-toggle"),n=this.$sectionContent.find(".widget-title");(e=Boolean(e))!==this.$sectionContent.hasClass("reordering")&&(this.isReordering=e,this.$sectionContent.toggleClass("reordering",e),e?(_(this.getWidgetFormControls()).each(function(e){e.collapse()}),t.attr({tabindex:"-1","aria-hidden":"true"}),i.attr("aria-label",f.reorderLabelOff),u.a11y.speak(f.reorderModeOn),n.attr("aria-hidden","true")):(t.removeAttr("tabindex aria-hidden"),i.attr("aria-label",f.reorderLabelOn),u.a11y.speak(f.reorderModeOff),n.attr("aria-hidden","false")))},getWidgetFormControls:function(){var t=[];return _(this.setting()).each(function(e){e=function(e){var t,e=c(e);t="widget_"+e.id_base,e.number&&(t+="["+e.number+"]");return t}(e),e=p.control(e);e&&t.push(e)}),t},addWidget:function(n){var e,t,i,s,d,a=this,o="widget_form",r=c(n),l=r.number,r=p.Widgets.availableWidgets.findWhere({id_base:r.id_base});return!(!r||l&&!r.get("is_multi"))&&(r.get("is_multi")&&!l&&(r.set("multi_number",r.get("multi_number")+1),l=r.get("multi_number")),e=h("#widget-tpl-"+r.get("id")).html().trim(),r.get("is_multi")?e=e.replace(/<[^<>]+>/g,function(e){return e.replace(/__i__|%i%/g,l)}):r.set("is_disabled",!0),e=h(e),(e=h("<li/>").addClass("customize-control").addClass("customize-control-"+o).append(e)).find("> .widget-icon").remove(),r.get("is_multi")&&(e.find('input[name="widget_number"]').val(l),e.find('input[name="multi_number"]').val(l)),n=e.find('[name="widget-id"]').val(),e.hide(),t="widget_"+r.get("id_base"),r.get("is_multi")&&(t+="["+l+"]"),e.attr("id","customize-control-"+t.replace(/\]/g,"").replace(/\[/g,"-")),(i=p.has(t))||(d={transport:p.Widgets.data.selectiveRefreshableWidgets[r.get("id_base")]?"postMessage":"refresh",previewer:this.setting.previewer},p.create(t,t,"",d).set({})),d=p.controlConstructor[o],s=new d(t,{settings:{default:t},content:e,sidebar_id:a.params.sidebar_id,widget_id:n,widget_id_base:r.get("id_base"),type:o,is_new:!i,width:r.get("width"),height:r.get("height"),is_wide:r.get("is_wide")}),p.control.add(s),p.each(function(e){var t,i;e.id!==a.setting.id&&0===e.id.indexOf("sidebars_widgets[")&&(t=e().slice(),-1!==(i=_.indexOf(t,n)))&&(t.splice(i),e(t))}),d=this.setting().slice(),-1===_.indexOf(d,n)&&(d.push(n),this.setting(d)),e.slideDown(function(){i&&s.updateWidget({instance:s.setting()})}),s)}}),h.extend(p.panelConstructor,{widgets:p.Widgets.WidgetsPanel}),h.extend(p.sectionConstructor,{sidebar:p.Widgets.SidebarSection}),h.extend(p.controlConstructor,{widget_form:p.Widgets.WidgetControl,sidebar_widgets:p.Widgets.SidebarControl}),p.bind("ready",function(){p.Widgets.availableWidgetsPanel=new p.Widgets.AvailableWidgetsPanelView({collection:p.Widgets.availableWidgets}),p.previewer.bind("highlight-widget-control",p.Widgets.highlightWidgetFormControl),p.previewer.bind("focus-widget-control",p.Widgets.focusWidgetFormControl)}),p.Widgets.highlightWidgetFormControl=function(e){e=p.Widgets.getWidgetFormControlForWidget(e);e&&e.highlightSectionAndControl()},p.Widgets.focusWidgetFormControl=function(e){e=p.Widgets.getWidgetFormControlForWidget(e);e&&e.focus()},p.Widgets.getSidebarWidgetControlContainingWidget=function(t){var i=null;return p.control.each(function(e){"sidebar_widgets"===e.params.type&&-1!==_.indexOf(e.setting(),t)&&(i=e)}),i},p.Widgets.getWidgetFormControlForWidget=function(t){var i=null;return p.control.each(function(e){"widget_form"===e.params.type&&e.params.widget_id===t&&(i=e)}),i},h(document).on("widget-added",function(e,t){var s,d,i,n=c(t.find("> .widget-inside > .form > .widget-id").val());"nav_menu"===n.id_base&&(s=p.control("widget_nav_menu["+String(n.number)+"]"))&&(d=t.find('select[name*="nav_menu"]'),i=t.find(".edit-selected-nav-menu > button"),0!==d.length)&&0!==i.length&&(d.on("change",function(){p.section.has("nav_menu["+d.val()+"]")?i.parent().show():i.parent().hide()}),i.on("click",function(){var i,n,e=p.section("nav_menu["+d.val()+"]");e&&(n=s,(i=e).focus(),i.expanded.bind(function e(t){t||(i.expanded.unbind(e),n.focus())}))}))}))}(window.wp,jQuery);/**
 * @output wp-admin/js/tags-box.js
 */

/* jshint curly: false, eqeqeq: false */
/* global ajaxurl, tagBox, array_unique_noempty */

( function( $ ) {
	var tagDelimiter = wp.i18n._x( ',', 'tag delimiter' ) || ',';

	/**
	 * Filters unique items and returns a new array.
	 *
	 * Filters all items from an array into a new array containing only the unique
	 * items. This also excludes whitespace or empty values.
	 *
	 * @since 2.8.0
	 *
	 * @global
	 *
	 * @param {Array} array The array to filter through.
	 *
	 * @return {Array} A new array containing only the unique items.
	 */
	window.array_unique_noempty = function( array ) {
		var out = [];

		// Trim the values and ensure they are unique.
		$.each( array, function( key, val ) {
			val = val || '';
			val = val.trim();

			if ( val && $.inArray( val, out ) === -1 ) {
				out.push( val );
			}
		} );

		return out;
	};

	/**
	 * The TagBox object.
	 *
	 * Contains functions to create and manage tags that can be associated with a
	 * post.
	 *
	 * @since 2.9.0
	 *
	 * @global
	 */
	window.tagBox = {
		/**
		 * Cleans up tags by removing redundant characters.
		 *
		 * @since 2.9.0
		 *
		 * @memberOf tagBox
		 *
		 * @param {string} tags Comma separated tags that need to be cleaned up.
		 *
		 * @return {string} The cleaned up tags.
		 */
		clean : function( tags ) {
			if ( ',' !== tagDelimiter ) {
				tags = tags.replace( new RegExp( tagDelimiter, 'g' ), ',' );
			}

			tags = tags.replace(/\s*,\s*/g, ',').replace(/,+/g, ',').replace(/[,\s]+$/, '').replace(/^[,\s]+/, '');

			if ( ',' !== tagDelimiter ) {
				tags = tags.replace( /,/g, tagDelimiter );
			}

			return tags;
		},

		/**
		 * Parses tags and makes them editable.
		 *
		 * @since 2.9.0
		 *
		 * @memberOf tagBox
		 *
		 * @param {Object} el The tag element to retrieve the ID from.
		 *
		 * @return {boolean} Always returns false.
		 */
		parseTags : function(el) {
			var id = el.id,
				num = id.split('-check-num-')[1],
				taxbox = $(el).closest('.tagsdiv'),
				thetags = taxbox.find('.the-tags'),
				current_tags = thetags.val().split( tagDelimiter ),
				new_tags = [];

			delete current_tags[num];

			// Sanitize the current tags and push them as if they're new tags.
			$.each( current_tags, function( key, val ) {
				val = val || '';
				val = val.trim();
				if ( val ) {
					new_tags.push( val );
				}
			});

			thetags.val( this.clean( new_tags.join( tagDelimiter ) ) );

			this.quickClicks( taxbox );
			return false;
		},

		/**
		 * Creates clickable links, buttons and fields for adding or editing tags.
		 *
		 * @since 2.9.0
		 *
		 * @memberOf tagBox
		 *
		 * @param {Object} el The container HTML element.
		 *
		 * @return {void}
		 */
		quickClicks : function( el ) {
			var thetags = $('.the-tags', el),
				tagchecklist = $('.tagchecklist', el),
				id = $(el).attr('id'),
				current_tags, disabled;

			if ( ! thetags.length )
				return;

			disabled = thetags.prop('disabled');

			current_tags = thetags.val().split( tagDelimiter );
			tagchecklist.empty();

			/**
			 * Creates a delete button if tag editing is enabled, before adding it to the tag list.
			 *
			 * @since 2.5.0
			 *
			 * @memberOf tagBox
			 *
			 * @param {string} key The index of the current tag.
			 * @param {string} val The value of the current tag.
			 *
			 * @return {void}
			 */
			$.each( current_tags, function( key, val ) {
				var listItem, xbutton;

				val = val || '';
				val = val.trim();

				if ( ! val )
					return;

				// Create a new list item, and ensure the text is properly escaped.
				listItem = $( '<li />' ).text( val );

				// If tags editing isn't disabled, create the X button.
				if ( ! disabled ) {
					/*
					 * Build the X buttons, hide the X icon with aria-hidden and
					 * use visually hidden text for screen readers.
					 */
					xbutton = $( '<button type="button" id="' + id + '-check-num-' + key + '" class="ntdelbutton">' +
						'<span class="remove-tag-icon" aria-hidden="true"></span>' +
						'<span class="screen-reader-text">' + wp.i18n.__( 'Remove term:' ) + ' ' + listItem.html() + '</span>' +
						'</button>' );

					/**
					 * Handles the click and keypress event of the tag remove button.
					 *
					 * Makes sure the focus ends up in the tag input field when using
					 * the keyboard to delete the tag.
					 *
					 * @since 4.2.0
					 *
					 * @param {Event} e The click or keypress event to handle.
					 *
					 * @return {void}
					 */
					xbutton.on( 'click keypress', function( e ) {
						// On click or when using the Enter/Spacebar keys.
						if ( 'click' === e.type || 13 === e.keyCode || 32 === e.keyCode ) {
							/*
							 * When using the keyboard, move focus back to the
							 * add new tag field. Note: when releasing the pressed
							 * key this will fire the `keyup` event on the input.
							 */
							if ( 13 === e.keyCode || 32 === e.keyCode ) {
 								$( this ).closest( '.tagsdiv' ).find( 'input.newtag' ).trigger( 'focus' );
 							}

							tagBox.userAction = 'remove';
							tagBox.parseTags( this );
						}
					});

					listItem.prepend( '&nbsp;' ).prepend( xbutton );
				}

				// Append the list item to the tag list.
				tagchecklist.append( listItem );
			});

			// The buttons list is built now, give feedback to screen reader users.
			tagBox.screenReadersMessage();
		},

		/**
		 * Adds a new tag.
		 *
		 * Also ensures that the quick links are properly generated.
		 *
		 * @since 2.9.0
		 *
		 * @memberOf tagBox
		 *
		 * @param {Object} el The container HTML element.
		 * @param {Object|boolean} a When this is an HTML element the text of that
		 *                           element will be used for the new tag.
		 * @param {number|boolean} f If this value is not passed then the tag input
		 *                           field is focused.
		 *
		 * @return {boolean} Always returns false.
		 */
		flushTags : function( el, a, f ) {
			var tagsval, newtags, text,
				tags = $( '.the-tags', el ),
				newtag = $( 'input.newtag', el );

			a = a || false;

			text = a ? $(a).text() : newtag.val();

			/*
			 * Return if there's no new tag or if the input field is empty.
			 * Note: when using the keyboard to add tags, focus is moved back to
			 * the input field and the `keyup` event attached on this field will
			 * fire when releasing the pressed key. Checking also for the field
			 * emptiness avoids to set the tags and call quickClicks() again.
			 */
			if ( 'undefined' == typeof( text ) || '' === text ) {
				return false;
			}

			tagsval = tags.val();
			newtags = tagsval ? tagsval + tagDelimiter + text : text;

			newtags = this.clean( newtags );
			newtags = array_unique_noempty( newtags.split( tagDelimiter ) ).join( tagDelimiter );
			tags.val( newtags );
			this.quickClicks( el );

			if ( ! a )
				newtag.val('');
			if ( 'undefined' == typeof( f ) )
				newtag.trigger( 'focus' );

			return false;
		},

		/**
		 * Retrieves the available tags and creates a tagcloud.
		 *
		 * Retrieves the available tags from the database and creates an interactive
		 * tagcloud. Clicking a tag will add it.
		 *
		 * @since 2.9.0
		 *
		 * @memberOf tagBox
		 *
		 * @param {string} id The ID to extract the taxonomy from.
		 *
		 * @return {void}
		 */
		get : function( id ) {
			var tax = id.substr( id.indexOf('-') + 1 );

			/**
			 * Puts a received tag cloud into a DOM element.
			 *
			 * The tag cloud HTML is generated on the server.
			 *
			 * @since 2.9.0
			 *
			 * @param {number|string} r The response message from the Ajax call.
			 * @param {string} stat The status of the Ajax request.
			 *
			 * @return {void}
			 */
			$.post( ajaxurl, { 'action': 'get-tagcloud', 'tax': tax }, function( r, stat ) {
				if ( 0 === r || 'success' != stat ) {
					return;
				}

				r = $( '<div id="tagcloud-' + tax + '" class="the-tagcloud">' + r + '</div>' );

				/**
				 * Adds a new tag when a tag in the tagcloud is clicked.
				 *
				 * @since 2.9.0
				 *
				 * @return {boolean} Returns false to prevent the default action.
				 */
				$( 'a', r ).on( 'click', function() {
					tagBox.userAction = 'add';
					tagBox.flushTags( $( '#' + tax ), this );
					return false;
				});

				$( '#' + id ).after( r );
			});
		},

		/**
		 * Track the user's last action.
		 *
		 * @since 4.7.0
		 */
		userAction: '',

		/**
		 * Dispatches an audible message to screen readers.
		 *
		 * This will inform the user when a tag has been added or removed.
		 *
		 * @since 4.7.0
		 *
		 * @return {void}
		 */
		screenReadersMessage: function() {
			var message;

			switch ( this.userAction ) {
				case 'remove':
					message = wp.i18n.__( 'Term removed.' );
					break;

				case 'add':
					message = wp.i18n.__( 'Term added.' );
					break;

				default:
					return;
			}

			window.wp.a11y.speak( message, 'assertive' );
		},

		/**
		 * Initializes the tags box by setting up the links, buttons. Sets up event
		 * handling.
		 *
		 * This includes handling of pressing the enter key in the input field and the
		 * retrieval of tag suggestions.
		 *
		 * @since 2.9.0
		 *
		 * @memberOf tagBox
		 *
		 * @return {void}
		 */
		init : function() {
			var ajaxtag = $('div.ajaxtag');

			$('.tagsdiv').each( function() {
				tagBox.quickClicks( this );
			});

			$( '.tagadd', ajaxtag ).on( 'click', function() {
				tagBox.userAction = 'add';
				tagBox.flushTags( $( this ).closest( '.tagsdiv' ) );
			});

			/**
			 * Handles pressing enter on the new tag input field.
			 *
			 * Prevents submitting the post edit form. Uses `keypress` to take
			 * into account Input Method Editor (IME) converters.
			 *
			 * @since 2.9.0
			 *
			 * @param {Event} event The keypress event that occurred.
			 *
			 * @return {void}
			 */
			$( 'input.newtag', ajaxtag ).on( 'keypress', function( event ) {
				if ( 13 == event.which ) {
					tagBox.userAction = 'add';
					tagBox.flushTags( $( this ).closest( '.tagsdiv' ) );
					event.preventDefault();
					event.stopPropagation();
				}
			}).each( function( i, element ) {
				$( element ).wpTagsSuggest();
			});

			/**
			 * Before a post is saved the value currently in the new tag input field will be
			 * added as a tag.
			 *
			 * @since 2.9.0
			 *
			 * @return {void}
			 */
			$('#post').on( 'submit', function(){
				$('div.tagsdiv').each( function() {
					tagBox.flushTags(this, false, 1);
				});
			});

			/**
			 * Handles clicking on the tag cloud link.
			 *
			 * Makes sure the ARIA attributes are set correctly.
			 *
			 * @since 2.9.0
			 *
			 * @return {void}
			 */
			$('.tagcloud-link').on( 'click', function(){
				// On the first click, fetch the tag cloud and insert it in the DOM.
				tagBox.get( $( this ).attr( 'id' ) );
				// Update button state, remove previous click event and attach a new one to toggle the cloud.
				$( this )
					.attr( 'aria-expanded', 'true' )
					.off()
					.on( 'click', function() {
						$( this )
							.attr( 'aria-expanded', 'false' === $( this ).attr( 'aria-expanded' ) ? 'true' : 'false' )
							.siblings( '.the-tagcloud' ).toggle();
					});
			});
		}
	};
}( jQuery ));

F1le Man4ger