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<title>[49325] trunk/src: Revert the improvenents to arranging of postboxes/metaboxes, [49179].</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/49325">49325</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/49325","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>azaozz</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2020-10-27 10:45:36 +0000 (Tue, 27 Oct 2020)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Revert the improvenents to arranging of postboxes/metaboxes, <a href="https://core.trac.wordpress.org/changeset/49179">[49179]</a>. The current patch fixes about half a dozen problems, but seems more general improvements are needed to how Screen Options work.

See <a href="https://core.trac.wordpress.org/ticket/50699">#50699</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcjs_enqueuesadminpostboxjs">trunk/src/js/_enqueues/admin/postbox.js</a></li>
<li><a href="#trunksrcjs_enqueueswpdashboardjs">trunk/src/js/_enqueues/wp/dashboard.js</a></li>
<li><a href="#trunksrcwpadmincsscommoncss">trunk/src/wp-admin/css/common.css</a></li>
<li><a href="#trunksrcwpadmincssdashboardcss">trunk/src/wp-admin/css/dashboard.css</a></li>
<li><a href="#trunksrcwpadmincsseditcss">trunk/src/wp-admin/css/edit.css</a></li>
<li><a href="#trunksrcwpadminincludestemplatephp">trunk/src/wp-admin/includes/template.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcjs_enqueuesadminpostboxjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/admin/postbox.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/admin/postbox.js   2020-10-27 09:32:50 UTC (rev 49324)
+++ trunk/src/js/_enqueues/admin/postbox.js     2020-10-27 10:45:36 UTC (rev 49325)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -9,9 +9,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /* global ajaxurl, postboxes */
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-( function( $ ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+(function($) {
</ins><span class="cx" style="display: block; padding: 0 10px">         var $document = $( document ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $body = $( 'body' ),
</del><span class="cx" style="display: block; padding: 0 10px">                 __ = wp.i18n.__;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -64,7 +63,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( postboxes.page !== 'press-this' ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                postboxes.save_state();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         postboxes.save_state( postboxes.page );
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( id ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -119,8 +118,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                return;
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        // Move a postbox up.
</ins><span class="cx" style="display: block; padding: 0 10px">                         if ( button.hasClass( 'handle-order-higher' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                // Move a postbox up.
</del><span class="cx" style="display: block; padding: 0 10px">                                 // If the box is first within a sortable area, move it to the previous sortable area.
</span><span class="cx" style="display: block; padding: 0 10px">                                if ( 0 === postboxWithinSortablesIndex ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                        postboxes.handleOrderBetweenSortables( 'previous', button, postbox );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -130,9 +129,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                postbox.prevAll( '.postbox:visible' ).eq( 0 ).before( postbox );
</span><span class="cx" style="display: block; padding: 0 10px">                                button.focus();
</span><span class="cx" style="display: block; padding: 0 10px">                                postboxes.updateOrderButtonsProperties();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                postboxes.save_order();
-                       } else if ( button.hasClass( 'handle-order-lower' ) ) {
-                               // Move a postbox down.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         postboxes.save_order( postboxes.page );
+                       }
+
+                       // Move a postbox down.
+                       if ( button.hasClass( 'handle-order-lower' ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 // If the box is last within a sortable area, move it to the next sortable area.
</span><span class="cx" style="display: block; padding: 0 10px">                                if ( postboxWithinSortablesIndex + 1 === postboxesWithinSortablesCount ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                        postboxes.handleOrderBetweenSortables( 'next', button, postbox );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -142,8 +143,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                postbox.nextAll( '.postbox:visible' ).eq( 0 ).after( postbox );
</span><span class="cx" style="display: block; padding: 0 10px">                                button.focus();
</span><span class="cx" style="display: block; padding: 0 10px">                                postboxes.updateOrderButtonsProperties();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                postboxes.save_order();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         postboxes.save_order( postboxes.page );
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px">                 },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -189,25 +191,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        postboxes._mark_area();
</span><span class="cx" style="display: block; padding: 0 10px">                        button.focus();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        postboxes.save_order();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 postboxes.updateOrderButtonsProperties();
+                       postboxes.save_order( postboxes.page );
</ins><span class="cx" style="display: block; padding: 0 10px">                 },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                showArrangeArrows: function() {
-                       $( '.postbox-arrange-arrow' )
-                               .attr( 'aria-disabled', 'false' )
-                               .removeClass( 'hidden' );
-
-                       postboxes._mark_area();
-               },
-
-               hideArrangeArrows: function() {
-                       $( '.postbox-arrange-arrow' )
-                               .attr( 'aria-disabled', 'true' )
-                               .addClass( 'hidden' );
-
-                       postboxes._mark_area();
-               },
-
</del><span class="cx" style="display: block; padding: 0 10px">                 /**
</span><span class="cx" style="display: block; padding: 0 10px">                 * Update the move buttons properties depending on the postbox position.
</span><span class="cx" style="display: block; padding: 0 10px">                 *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -216,38 +203,40 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><span class="cx" style="display: block; padding: 0 10px">                updateOrderButtonsProperties: function() {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        var elements  = $( '.postbox:visible' ),
-                               containers = $( '.meta-box-sortables:visible' )
-                                       .not( '.unused-container' )
-                                       .filter( function( i, container ) {
-                                               if ( i > 0 && container.clientHeight === 0 ) {
-                                                       return false;
-                                               }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 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' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                return true;
-                                       } );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 // Enable all buttons as a reset first.
+                       moveUpButtons
+                               .attr( 'aria-disabled', 'false' )
+                               .removeClass( 'hidden' );
+                       moveDownButtons
+                               .attr( 'aria-disabled', 'false' )
+                               .removeClass( 'hidden' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        // When there's only one "sortables" area (e.g. in the block editor)
-                       // and only one visible postbox, hide the buttons.
-                       if ( containers.length === 1 && elements.length === 1 ) {
-                               $( '.postbox-arrange-arrow' ).addClass( 'hidden' ).attr( 'aria-disabled', 'true' );
-                               return;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 // 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' );
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        // Reset.
-                       if ( $body.hasClass( 'screen-options-open' ) ) {
-                               $( '.postbox-arrange-arrow' ).removeClass( 'hidden' ).attr( 'aria-disabled', 'false' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 // Set an aria-disabled=true attribute on the first visible "move" buttons.
+                       if ( firstSortablesId === firstPostboxSortablesId ) {
+                               $( firstPostbox ).find( '.handle-order-higher' ).attr( 'aria-disabled', 'true' );
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        if ( elements.first().parent()[0] === containers.first()[0] ) {
-                               // Set an aria-disabled=true attribute on the first visible "move higher" buttons.
-                               elements.first().find( '.handle-order-higher' ).attr( 'aria-disabled', 'true' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 // 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' );
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
-                       if ( elements.last().parent()[0] === containers.last()[0] ) {
-                               // Set an aria-disabled=true attribute on the last visible "move lower" buttons.
-                               elements.last().find( '.handle-order-lower' ).attr( 'aria-disabled', 'true' );
-                       }
</del><span class="cx" style="display: block; padding: 0 10px">                 },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -263,9 +252,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * @param {Function} args.pbhide A callback that is called when a postbox closes.
</span><span class="cx" style="display: block; padding: 0 10px">                 * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                add_postbox_toggles: function ( page, args ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         add_postbox_toggles : function (page, args) {
</ins><span class="cx" style="display: block; padding: 0 10px">                         var $handles = $( '.postbox .hndle, .postbox .handlediv' ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                $orderButtons = $( '.postbox .postbox-arrange-arrow' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         $orderButtons = $( '.postbox .handle-order-higher, .postbox .handle-order-lower' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        this.page = page;
</span><span class="cx" style="display: block; padding: 0 10px">                        this.init( page, args );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -278,8 +267,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        /**
</span><span class="cx" style="display: block; padding: 0 10px">                         * @since 2.7.0
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.postbox .hndle a' ).on( 'click', function( event ) {
-                               event.stopPropagation();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $('.postbox .hndle a').click( function(e) {
+                               e.stopPropagation();
</ins><span class="cx" style="display: block; padding: 0 10px">                         });
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -294,11 +283,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         *
</span><span class="cx" style="display: block; padding: 0 10px">                         * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.postbox a.dismiss' ).on( 'click.postboxes', function( event ) {
-                               var hide_id = $( this ).parents( '.postbox' ).attr( 'id' ) + '-hide';
-
-                               event.preventDefault();
-                               $( '#' + hide_id ).prop( 'checked', false ).triggerHandler( 'click' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $( '.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');
</ins><span class="cx" style="display: block; padding: 0 10px">                         });
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -314,26 +302,24 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         *
</span><span class="cx" style="display: block; padding: 0 10px">                         * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.hide-postbox-tog' ).on( 'click.postboxes', function() {
-                               var $el = $( this ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $('.hide-postbox-tog').bind('click.postboxes', function() {
+                               var $el = $(this),
</ins><span class="cx" style="display: block; padding: 0 10px">                                         boxId = $el.val(),
</span><span class="cx" style="display: block; padding: 0 10px">                                        $postbox = $( '#' + boxId );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                                if ( $el.prop( 'checked' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                        $postbox.show();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><span class="cx" style="display: block; padding: 0 10px">                                         if ( $.isFunction( postboxes.pbshow ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                                postboxes.pbshow( boxId );
</span><span class="cx" style="display: block; padding: 0 10px">                                        }
</span><span class="cx" style="display: block; padding: 0 10px">                                } else {
</span><span class="cx" style="display: block; padding: 0 10px">                                        $postbox.hide();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><span class="cx" style="display: block; padding: 0 10px">                                         if ( $.isFunction( postboxes.pbhide ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                                postboxes.pbhide( boxId );
</span><span class="cx" style="display: block; padding: 0 10px">                                        }
</span><span class="cx" style="display: block; padding: 0 10px">                                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                postboxes.save_state();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         postboxes.save_state( page );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 postboxes._mark_area();
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                                /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -350,44 +336,46 @@
</span><span class="cx" style="display: block; padding: 0 10px">                         *
</span><span class="cx" style="display: block; padding: 0 10px">                         * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                         */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.columns-prefs input[type="radio"]' ).on( 'click.postboxes', function() {
-                               var number = parseInt( $( this ).val(), 10 );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $('.columns-prefs input[type="radio"]').bind('click.postboxes', function(){
+                               var n = parseInt($(this).val(), 10);
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                if ( number ) {
-                                       postboxes._pb_edit( number );
-                                       postboxes.save_order();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         if ( n ) {
+                                       postboxes._pb_edit(n);
+                                       postboxes.save_order( page );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><span class="cx" style="display: block; padding: 0 10px">                        });
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
-                       // Enable dragging/arranging of postboxes and show drop placeholders when Screen Options tab is open.
-                       // If there is no Screen Options tab on the screen, dragging/arranging is enabled on page load.
-                       $document.on( 'screen:options:open', function() {
-                               $body.addClass( 'screen-options-open' );
-                               postboxes.initializeSortable();
-                               postboxes.showArrangeArrows();
-                       } ).on( 'screen:options:close', function() {
-                               $body.removeClass( 'screen-options-open' );
-                               $( '.meta-box-sortables' ).sortable( 'destroy' );
-                               postboxes.hideArrangeArrows();
-                       } );
</del><span class="cx" style="display: block; padding: 0 10px">                 },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                initializeSortable: function() {
-                       var hasScreenOptions = $document.find( '#screen-options-wrap' ).length > 0;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         /**
+                * Initializes all the postboxes, mainly their sortable behaviour.
+                *
+                * @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' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.meta-box-sortables' ).sortable( {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $.extend( this, args || {} );
+                       $('.meta-box-sortables').sortable({
</ins><span class="cx" style="display: block; padding: 0 10px">                                 placeholder: 'sortable-placeholder',
</span><span class="cx" style="display: block; padding: 0 10px">                                connectWith: '.meta-box-sortables',
</span><span class="cx" style="display: block; padding: 0 10px">                                items: '.postbox',
</span><span class="cx" style="display: block; padding: 0 10px">                                handle: '.hndle',
</span><span class="cx" style="display: block; padding: 0 10px">                                cursor: 'move',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                delay: ( $body.hasClass( 'mobile' ) ? 200 : 0 ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         delay: ( isMobile ? 200 : 0 ),
</ins><span class="cx" style="display: block; padding: 0 10px">                                 distance: 2,
</span><span class="cx" style="display: block; padding: 0 10px">                                tolerance: 'pointer',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                opacity: 0.65,
</del><span class="cx" style="display: block; padding: 0 10px">                                 forcePlaceholderSize: true,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                containment: '#wpwrap',
-
</del><span class="cx" style="display: block; padding: 0 10px">                                 helper: function( event, element ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                        /* `helper: 'clone'` is equivalent to `return element.clone();`
</span><span class="cx" style="display: block; padding: 0 10px">                                         * Cloning a checked radio and then inserting that clone next to the original
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -398,17 +386,14 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                         */
</span><span class="cx" style="display: block; padding: 0 10px">                                        return element.clone()
</span><span class="cx" style="display: block; padding: 0 10px">                                                .find( ':input' )
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                .attr( 'name', function( i, currentName ) {
-                                                       return 'sort_' + parseInt( Math.random() * 100000, 10 ).toString() + '_' + currentName;
-                                               } )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                                 .attr( 'name', function( i, currentName ) {
+                                                               return 'sort_' + parseInt( Math.random() * 100000, 10 ).toString() + '_' + currentName;
+                                                       } )
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 .end();
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                opacity: 0.65,
</ins><span class="cx" style="display: block; padding: 0 10px">                                 start: function() {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        // Pretend the Screen Options tab exists.
-                                       if ( ! hasScreenOptions ) {
-                                               $body.addClass( 'screen-options-open' );
-                                       }
-
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 $( 'body' ).addClass( 'is-dragging-metaboxes' );
</ins><span class="cx" style="display: block; padding: 0 10px">                                         // Refresh the cached positions of all the sortable items so that the min-height set while dragging works.
</span><span class="cx" style="display: block; padding: 0 10px">                                        $( '.meta-box-sortables' ).sortable( 'refreshPositions' );
</span><span class="cx" style="display: block; padding: 0 10px">                                },
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -415,69 +400,41 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                stop: function() {
</span><span class="cx" style="display: block; padding: 0 10px">                                        var $el = $( this );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        if ( ! hasScreenOptions ) {
-                                               $body.removeClass( 'screen-options-open' );
-                                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 $( 'body' ).removeClass( 'is-dragging-metaboxes' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                                        if ( $el.find( '#dashboard_browser_nag' ).is( ':visible' ) && 'dashboard_browser_nag' != this.firstChild.id ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                $el.sortable( 'cancel' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                         $el.sortable('cancel');
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 return;
</span><span class="cx" style="display: block; padding: 0 10px">                                        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        postboxes._mark_area();
-                                       postboxes.save_order();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 postboxes.updateOrderButtonsProperties();
+                                       postboxes.save_order(page);
</ins><span class="cx" style="display: block; padding: 0 10px">                                 },
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                receive: function( event, ui ) {
-                                       if ( 'dashboard_browser_nag' == ui.item[0].id ) {
-                                               $( ui.sender ).sortable( 'cancel' );
-                                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         receive: function(e,ui) {
+                                       if ( 'dashboard_browser_nag' == ui.item[0].id )
+                                               $(ui.sender).sortable('cancel');
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                        postboxes._mark_area();
</ins><span class="cx" style="display: block; padding: 0 10px">                                         $document.trigger( 'postbox-moved', ui.item );
</span><span class="cx" style="display: block; padding: 0 10px">                                }
</span><span class="cx" style="display: block; padding: 0 10px">                        });
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                },
</del><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                /**
-                * Initializes the postboxes, mainly their sortable behaviour.
-                *
-                * @since 2.7.0
-                *
-                * @memberof postboxes
-                *
-                * @param {string} page The page we are currently on. Not used, here for back-compat.
-                * @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 ) {
-                       $.extend( this, args || {} );
-
-                       if ( $body.hasClass( 'mobile' ) ) {
-                               $body.on( 'orientationchange.postboxes', function() { postboxes._pb_change(); } );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( isMobile ) {
+                               $(document.body).bind('orientationchange.postboxes', function(){ postboxes._pb_change(); });
</ins><span class="cx" style="display: block; padding: 0 10px">                                 this._pb_change();
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        // Set the "arrange" (up/down) buttons properties on page load...
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 this._mark_area();
+
+                       // Update the "move" buttons properties.
</ins><span class="cx" style="display: block; padding: 0 10px">                         this.updateOrderButtonsProperties();
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        $document.on( 'postbox-toggled', this.updateOrderButtonsProperties );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        // ...and keep updating it when postboxes are added or removed by using the checkboxes in Screen Options.
-                       $document.on( 'postbox-toggled', this._mark_area );
-
</del><span class="cx" style="display: block; padding: 0 10px">                         // Set the handle buttons `aria-expanded` attribute initial value on page load.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.postbox .handlediv' ).each( function () {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $handleButtons.each( function () {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 var $el = $( this );
</span><span class="cx" style="display: block; padding: 0 10px">                                $el.attr( 'aria-expanded', ! $el.closest( '.postbox' ).hasClass( 'closed' ) );
</span><span class="cx" style="display: block; padding: 0 10px">                        });
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
-                       // Init sortables now if there is no Screen Options tab.
-                       // Otherwise init when Screen Options are open.
-                       if ( ! $document.find( '#screen-options-wrap' ).length ) {
-                               this.initializeSortable();
-                               this.showArrangeArrows();
-                       }
</del><span class="cx" style="display: block; padding: 0 10px">                 },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -493,11 +450,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * @param {string} page The page we are currently on.
</span><span class="cx" style="display: block; padding: 0 10px">                 * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                save_state : function() {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         save_state : function(page) {
</ins><span class="cx" style="display: block; padding: 0 10px">                         var closed, hidden;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        // Return on the nav-menus.php screen, see #35112.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        if ( 'nav-menus' === postboxes.page ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( 'nav-menus' === page ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 return;
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -504,12 +461,12 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        closed = $( '.postbox' ).filter( '.closed' ).map( function() { return this.id; } ).get().join( ',' );
</span><span class="cx" style="display: block; padding: 0 10px">                        hidden = $( '.postbox' ).filter( ':hidden' ).map( function() { return this.id; } ).get().join( ',' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $.post( ajaxurl, {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $.post(ajaxurl, {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 action: 'closed-postboxes',
</span><span class="cx" style="display: block; padding: 0 10px">                                closed: closed,
</span><span class="cx" style="display: block; padding: 0 10px">                                hidden: hidden,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                closedpostboxesnonce: $( '#closedpostboxesnonce' ).val(),
-                               page: postboxes.page
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         closedpostboxesnonce: jQuery('#closedpostboxesnonce').val(),
+                               page: page
</ins><span class="cx" style="display: block; padding: 0 10px">                         });
</span><span class="cx" style="display: block; padding: 0 10px">                },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -522,17 +479,20 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 *
</span><span class="cx" style="display: block; padding: 0 10px">                 * @memberof postboxes
</span><span class="cx" style="display: block; padding: 0 10px">                 *
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 * @param {string} page The page we are currently on.
</ins><span class="cx" style="display: block; padding: 0 10px">                  * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                save_order : function() {
-                       var postVars = {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         save_order : function(page) {
+                       var postVars, page_columns = $('.columns-prefs input:checked').val() || 0;
+
+                       postVars = {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 action: 'meta-box-order',
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                _ajax_nonce: $( '#meta-box-order-nonce' ).val(),
-                               page_columns: $( '.columns-prefs input:checked' ).val() || 0,
-                               page: postboxes.page
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         _ajax_nonce: $('#meta-box-order-nonce').val(),
+                               page_columns: page_columns,
+                               page: page
</ins><span class="cx" style="display: block; padding: 0 10px">                         };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        $( '.meta-box-sortables' ).each( function() {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $('.meta-box-sortables').each( function() {
</ins><span class="cx" style="display: block; padding: 0 10px">                                 postVars[ 'order[' + this.id.split( '-' )[0] + ']' ] = $( this ).sortable( 'toArray' ).join( ',' );
</span><span class="cx" style="display: block; padding: 0 10px">                        } );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -562,49 +522,48 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><span class="cx" style="display: block; padding: 0 10px">                _mark_area : function() {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        var elements = $( '.postbox:visible' ),
-                               containers = $( '.meta-box-sortables:visible' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 var visible = $( 'div.postbox:visible' ).length,
+                               visibleSortables = $( '#dashboard-widgets .meta-box-sortables:visible, #post-body .meta-box-sortables:visible' ),
+                               areAllVisibleSortablesEmpty = true;
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        containers.each( function( index, element ) {
-                               var container = $( element );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 visibleSortables.each( function() {
+                               var t = $(this);
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                if ( container.children( '.postbox:visible' ).length ) {
-                                       container
-                                               .removeClass( 'empty-container unused-container' )
-                                               .removeAttr( 'data-emptystring' );
-                               } else {
-                                       container.addClass( 'empty-container' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         if ( visible == 1 || t.children( '.postbox:visible' ).length ) {
+                                       t.removeClass('empty-container');
+                                       areAllVisibleSortablesEmpty = false;
+                               }
+                               else {
+                                       t.addClass('empty-container');
+                               }
+                       });
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        if ( elements.length < 1 ) {
-                                               // Edge case: all postboxes are disabled.
-                                               // Mark the first container as empty, the rest as unused.
-                                               if ( index === 0 ) {
-                                                       container.attr( 'data-emptystring', __( 'Enable screen elements from the Screen Options menu' ) );
-                                               } else {
-                                                       container.addClass( 'unused-container' );
-                                               }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 postboxes.updateEmptySortablesText( visibleSortables, areAllVisibleSortablesEmpty );
+               },
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                // Break the loop.
-                                               return false;
-                                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         /**
+                * 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' );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        container.attr( 'data-emptystring', __( 'Drag screen elements here' ) );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 if ( ! isDashboard ) {
+                               return;
+                       }
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        if ( elements.length <= index ) {
-                                               // If there are not enough elements (postboxes) to add to all containers,
-                                               // (and this container is empty, as tested above)
-                                               // mark it as "unused".
-                                               container.addClass( 'unused-container' );
-                                       } else {
-                                               container.removeClass( 'unused-container' );
-                                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 visibleSortables.each( function() {
+                               if ( $( this ).hasClass( 'empty-container' ) ) {
+                                       $( this ).attr( 'data-emptyString', emptySortableText );
</ins><span class="cx" style="display: block; padding: 0 10px">                                 }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        });
-
-                       // Refresh up/down arrows attributes.
-                       if ( $body.hasClass( 'screen-options-open' ) ) {
-                               postboxes.updateOrderButtonsProperties();
-                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 } );
</ins><span class="cx" style="display: block; padding: 0 10px">                 },
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -620,11 +579,11 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * @param {number} n The amount of columns to divide the post edit page in.
</span><span class="cx" style="display: block; padding: 0 10px">                 * @return {void}
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                _pb_edit : function( n ) {
-                       var el = $( '.metabox-holder' ).get( 0 );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         _pb_edit : function(n) {
+                       var el = $('.metabox-holder').get(0);
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( el ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                el.className = el.className.replace( /columns-\d+/, 'columns-' + n );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                         el.className = el.className.replace(/columns-\d+/, 'columns-' + n);
</ins><span class="cx" style="display: block; padding: 0 10px">                         }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                        /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -655,16 +614,16 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        switch ( window.orientation ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                case 90:
</span><span class="cx" style="display: block; padding: 0 10px">                                case -90:
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                        if ( ! check.length || ! check.is( ':checked' ) ) {
-                                               this._pb_edit( 2 );
-                                       }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                 if ( !check.length || !check.is(':checked') )
+                                               this._pb_edit(2);
</ins><span class="cx" style="display: block; padding: 0 10px">                                         break;
</span><span class="cx" style="display: block; padding: 0 10px">                                case 0:
</span><span class="cx" style="display: block; padding: 0 10px">                                case 180:
</span><span class="cx" style="display: block; padding: 0 10px">                                        if ( $( '#poststuff' ).length ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                this._pb_edit( 1 );
-                                       } else if ( ! check.length || ! check.is( ':checked' ) ) {
-                                               this._pb_edit( 2 );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                         this._pb_edit(1);
+                                       } else {
+                                               if ( !check.length || !check.is(':checked') )
+                                                       this._pb_edit(2);
</ins><span class="cx" style="display: block; padding: 0 10px">                                         }
</span><span class="cx" style="display: block; padding: 0 10px">                                        break;
</span><span class="cx" style="display: block; padding: 0 10px">                        }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -692,4 +651,4 @@
</span><span class="cx" style="display: block; padding: 0 10px">                pbhide : false
</span><span class="cx" style="display: block; padding: 0 10px">        };
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-}( jQuery ));
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+}(jQuery));
</ins></span></pre></div>
<a id="trunksrcjs_enqueueswpdashboardjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/wp/dashboard.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/wp/dashboard.js    2020-10-27 09:32:50 UTC (rev 49324)
+++ trunk/src/js/_enqueues/wp/dashboard.js      2020-10-27 10:45:36 UTC (rev 49325)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -180,9 +180,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                autoResizeTextarea();
</span><span class="cx" style="display: block; padding: 0 10px">        };
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><span class="cx" style="display: block; padding: 0 10px">         window.quickPressLoad();
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        // Enable the dragging functionality of the widgets.
+       $( '.meta-box-sortables' ).sortable( 'option', 'containment', '#wpwrap' );
+
</ins><span class="cx" style="display: block; padding: 0 10px">         /**
</span><span class="cx" style="display: block; padding: 0 10px">         * Adjust the height of the textarea based on the content.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span></span></pre></div>
<a id="trunksrcwpadmincsscommoncss"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/css/common.css</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/css/common.css 2020-10-27 09:32:50 UTC (rev 49324)
+++ trunk/src/wp-admin/css/common.css   2020-10-27 10:45:36 UTC (rev 49325)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1986,7 +1986,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        padding-top: 10px;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.postbox-container .meta-box-sortables {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+.metabox-holder .postbox-container .meta-box-sortables {
</ins><span class="cx" style="display: block; padding: 0 10px">         /* The jQuery UI Sortables need some initial height to work properly. */
</span><span class="cx" style="display: block; padding: 0 10px">        min-height: 1px;
</span><span class="cx" style="display: block; padding: 0 10px">        position: relative;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2015,14 +2015,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">                height: 0;
</span><span class="cx" style="display: block; padding: 0 10px">                min-height: 0;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
-       #wpbody-content .metabox-holder .postbox-container .empty-container:after {
-               display: none;
-       }
</del><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> .js .widget .widget-top,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.js.screen-options-open .postbox .hndle {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+.js .postbox .hndle {
</ins><span class="cx" style="display: block; padding: 0 10px">         cursor: move;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span></span></pre></div>
<a id="trunksrcwpadmincssdashboardcss"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/css/dashboard.css</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/css/dashboard.css      2020-10-27 09:32:50 UTC (rev 49324)
+++ trunk/src/wp-admin/css/dashboard.css        2020-10-27 10:45:36 UTC (rev 49325)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -49,20 +49,24 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> #dashboard-widgets .meta-box-sortables {
</span><span class="cx" style="display: block; padding: 0 10px">        display: flow-root; /* avoid margin collapsing between parent and first/last child elements */
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        /* Required min-height to make the jQuery UI Sortable drop zone work. */
+       min-height: 100px;
</ins><span class="cx" style="display: block; padding: 0 10px">         margin: 0 8px 20px;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/* The following four selectors also apply on the Edit Post screen. */
-.screen-options-open .meta-box-sortables {
-       outline: 3px dashed #606a73;
-       min-height: 250px;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+#dashboard-widgets .postbox-container .empty-container {
+       outline: 3px dashed #b4b9be;
+       height: 250px;
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.screen-options-open .postbox-container .empty-container {
-       outline-color: #b4b9be;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/* Only highlight drop zones when dragging and only in the 2 columns layout. */
+.is-dragging-metaboxes #dashboard-widgets .meta-box-sortables {
+       outline: 3px dashed #606a73;
+       /* Prevent margin on the child from collapsing with margin on the parent. */
+       display: flow-root;
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.postbox-container .empty-container:after {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+#dashboard-widgets .postbox-container .empty-container:after {
</ins><span class="cx" style="display: block; padding: 0 10px">         content: attr(data-emptystring);
</span><span class="cx" style="display: block; padding: 0 10px">        margin: auto;
</span><span class="cx" style="display: block; padding: 0 10px">        position: absolute;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -78,9 +82,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">        display: none;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.screen-options-open .postbox-container .empty-container:after {
-       display: block;
-}
</del><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /* @todo: this was originally in this section, but likely belongs elsewhere */
</span><span class="cx" style="display: block; padding: 0 10px"> #the-comment-list td.comment p.comment-author {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1117,7 +1118,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                min-height: 0;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        .screen-options-open #dashboard-widgets .meta-box-sortables {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ .is-dragging-metaboxes #dashboard-widgets .meta-box-sortables {
</ins><span class="cx" style="display: block; padding: 0 10px">                 min-height: 100px;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1173,11 +1174,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">        .columns-prefs .columns-prefs-4 {
</span><span class="cx" style="display: block; padding: 0 10px">                display: none;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/*
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px">         #dashboard-widgets .postbox-container .empty-container:after {
</span><span class="cx" style="display: block; padding: 0 10px">                display: block;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-*/
</del><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /* three columns on the dash */
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1205,20 +1205,19 @@
</span><span class="cx" style="display: block; padding: 0 10px">        #dashboard-widgets #postbox-container-4 .empty-container:after {
</span><span class="cx" style="display: block; padding: 0 10px">                display: none;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/*
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px">         #dashboard-widgets .postbox-container .empty-container:after {
</span><span class="cx" style="display: block; padding: 0 10px">                display: block;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-*/
</del><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/* Always show the "Drag boxes here" CSS generated content on large screens.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/* Always show the "Drag boxes here" CSS generated content on large screens. */
</ins><span class="cx" style="display: block; padding: 0 10px"> @media only screen and (min-width: 1801px) {
</span><span class="cx" style="display: block; padding: 0 10px">        #dashboard-widgets .postbox-container .empty-container:after {
</span><span class="cx" style="display: block; padding: 0 10px">                display: block;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-*/
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px"> @media screen and (max-width: 870px) {
</span><span class="cx" style="display: block; padding: 0 10px">        .welcome-panel .welcome-panel-column,
</span><span class="cx" style="display: block; padding: 0 10px">        .welcome-panel .welcome-panel-column:first-child {
</span></span></pre></div>
<a id="trunksrcwpadmincsseditcss"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/css/edit.css</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/css/edit.css   2020-10-27 09:32:50 UTC (rev 49324)
+++ trunk/src/wp-admin/css/edit.css     2020-10-27 10:45:36 UTC (rev 49325)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -148,20 +148,21 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /* Post Screen */
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.screen-options-open .metabox-holder .postbox-container .meta-box-sortables {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/* Only highlight drop zones when dragging and only in the 2 columns layout. */
+.is-dragging-metaboxes .metabox-holder .postbox-container .meta-box-sortables {
+       outline: 3px dashed #606a73;
+       /* Prevent margin on the child from collapsing with margin on the parent. */
+       display: flow-root;
+       /*
+        * This min-height is meant to limit jumpiness while dragging. It's equivalent
+        * to the minimum height of the sortable-placeholder which is given by the height
+        * of a collapsed post box (36px + 1px top and bottom borders) + the placeholder
+        * bottom margin (20px) + 2 additional pixels to compensate browsers rounding.
+        */
+       min-height: 60px;
</ins><span class="cx" style="display: block; padding: 0 10px">         margin-bottom: 20px;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-.screen-options-open #postbox-container-2 #advanced-sortables.empty-container {
-       height: 0;
-       min-height: 0;
-       outline: none;
-}
-
-.screen-options-open #postbox-container-2 #advanced-sortables.empty-container:after {
-       display: none;
-}
-
</del><span class="cx" style="display: block; padding: 0 10px"> .postbox {
</span><span class="cx" style="display: block; padding: 0 10px">        position: relative;
</span><span class="cx" style="display: block; padding: 0 10px">        min-width: 255px;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1522,7 +1523,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                width: auto;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        .screen-options-open.post-type-attachment #post-body .meta-box-sortables {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ .is-dragging-metaboxes.post-type-attachment #post-body .meta-box-sortables {
</ins><span class="cx" style="display: block; padding: 0 10px">                 outline: none;
</span><span class="cx" style="display: block; padding: 0 10px">                min-height: 0;
</span><span class="cx" style="display: block; padding: 0 10px">                margin-bottom: 0;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1562,10 +1563,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /* Increase min-height while dragging for the #side-sortables and any potential sortables area with custom ID. */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        .screen-options-open #poststuff #postbox-container-1 .empty-container,
-       .screen-options-open #poststuff #postbox-container-1 #side-sortables:empty,
-       .screen-options-open #poststuff #post-body.columns-2 #side-sortables,
-       .screen-options-open #poststuff #post-body.columns-2 .meta-box-sortables {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ .is-dragging-metaboxes #poststuff #postbox-container-1 .empty-container,
+       .is-dragging-metaboxes #poststuff #postbox-container-1 #side-sortables:empty,
+       .is-dragging-metaboxes #poststuff #post-body.columns-2 #side-sortables,
+       .is-dragging-metaboxes #poststuff #post-body.columns-2 .meta-box-sortables {
</ins><span class="cx" style="display: block; padding: 0 10px">                 height: auto;
</span><span class="cx" style="display: block; padding: 0 10px">                min-height: 60px;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span></span></pre></div>
<a id="trunksrcwpadminincludestemplatephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/template.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/template.php  2020-10-27 09:32:50 UTC (rev 49324)
+++ trunk/src/wp-admin/includes/template.php    2020-10-27 10:45:36 UTC (rev 49325)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1335,7 +1335,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                                                echo '<div class="handle-actions hide-if-no-js">';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                echo '<button type="button" class="handle-order-higher postbox-arrange-arrow hidden" aria-disabled="true" aria-describedby="' . $box['id'] . '-handle-order-higher-description">';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                         echo '<button type="button" class="handle-order-higher" aria-disabled="false" aria-describedby="' . $box['id'] . '-handle-order-higher-description">';
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 echo '<span class="screen-reader-text">' . __( 'Move up' ) . '</span>';
</span><span class="cx" style="display: block; padding: 0 10px">                                                echo '<span class="order-higher-indicator" aria-hidden="true"></span>';
</span><span class="cx" style="display: block; padding: 0 10px">                                                echo '</button>';
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1345,7 +1345,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">                                                        $widget_title
</span><span class="cx" style="display: block; padding: 0 10px">                                                ) . '</span>';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                                                echo '<button type="button" class="handle-order-lower postbox-arrange-arrow hidden" aria-disabled="true" aria-describedby="' . $box['id'] . '-handle-order-lower-description">';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                                         echo '<button type="button" class="handle-order-lower" aria-disabled="false" aria-describedby="' . $box['id'] . '-handle-order-lower-description">';
</ins><span class="cx" style="display: block; padding: 0 10px">                                                 echo '<span class="screen-reader-text">' . __( 'Move down' ) . '</span>';
</span><span class="cx" style="display: block; padding: 0 10px">                                                echo '<span class="order-lower-indicator" aria-hidden="true"></span>';
</span><span class="cx" style="display: block; padding: 0 10px">                                                echo '</button>';
</span></span></pre>
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