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<title>[27798] trunk/src/wp-admin: Widget Customizer: Improve behavior of bigger widgets.</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/27798">27798</a></dd>
<dt>Author</dt> <dd>ocean90</dd>
<dt>Date</dt> <dd>2014-03-27 23:12:25 +0000 (Thu, 27 Mar 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Widget Customizer: Improve behavior of bigger widgets.

* Support widgets which are higher than browsers viewport.
* Use widgets width as max-width.
* Don't animate the width of wide widgets to make them visible, instead fade them in/out.
* Fix Chrome flickerings while updating wide widgets.

props adamsilverstein, westonruter, ocean90.
see <a href="http://core.trac.wordpress.org/ticket/27348">#27348</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmincsscustomizewidgetscss">trunk/src/wp-admin/css/customize-widgets.css</a></li>
<li><a href="#trunksrcwpadminjscustomizewidgetsjs">trunk/src/wp-admin/js/customize-widgets.js</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmincsscustomizewidgetscss"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/css/customize-widgets.css (27797 => 27798)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/css/customize-widgets.css     2014-03-27 22:40:06 UTC (rev 27797)
+++ trunk/src/wp-admin/css/customize-widgets.css        2014-03-27 23:12:25 UTC (rev 27798)
</span><span class="lines">@@ -50,16 +50,16 @@
</span><span class="cx">  left: auto !important;
</span><span class="cx">  max-width: 100%;
</span><span class="cx"> }
</span><ins>+
</ins><span class="cx"> .customize-control-widget_form.wide-widget-control .widget-inside {
</span><span class="cx">  position: fixed;
</span><span class="cx">  left: 299px;
</span><span class="cx">  top: 25%;
</span><del>-       padding: 20px;
</del><span class="cx">   border: 1px solid rgb(229, 229, 229);
</span><del>-       z-index: -1;
</del><ins>+        overflow: auto;
</ins><span class="cx"> }
</span><del>-.customize-control-widget_form.wide-widget-control.collapsing .widget-inside {
-       z-index: -2;
</del><ins>+.customize-control-widget_form.wide-widget-control .widget-inside > .form {
+       padding: 20px;
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> .customize-control-widget_form.wide-widget-control .widget-top {
</span></span></pre></div>
<a id="trunksrcwpadminjscustomizewidgetsjs"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/js/customize-widgets.js (27797 => 27798)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/js/customize-widgets.js       2014-03-27 22:40:06 UTC (rev 27797)
+++ trunk/src/wp-admin/js/customize-widgets.js  2014-03-27 23:12:25 UTC (rev 27798)
</span><span class="lines">@@ -703,6 +703,7 @@
</span><span class="cx">          _setupWideWidget: function () {
</span><span class="cx">                  var control = this,
</span><span class="cx">                          widget_inside,
</span><ins>+                               widget_form,
</ins><span class="cx">                           customize_sidebar,
</span><span class="cx">                          position_widget,
</span><span class="cx">                          theme_controls_container;
</span><span class="lines">@@ -712,11 +713,12 @@
</span><span class="cx">                  }
</span><span class="cx"> 
</span><span class="cx">                  widget_inside = control.container.find( '.widget-inside' );
</span><ins>+                       widget_form = widget_inside.find( '> .form' );
</ins><span class="cx">                   customize_sidebar = $( '.wp-full-overlay-sidebar-content:first' );
</span><span class="cx">                  control.container.addClass( 'wide-widget-control' );
</span><span class="cx"> 
</span><span class="cx">                  control.container.find( '.widget-content:first' ).css( {
</span><del>-                               'min-width': control.params.width,
</del><ins>+                                'max-width': control.params.width,
</ins><span class="cx">                           'min-height': control.params.height
</span><span class="cx">                  } );
</span><span class="cx"> 
</span><span class="lines">@@ -725,31 +727,37 @@
</span><span class="cx">                   * element is at the same top position as the widget-top. When the
</span><span class="cx">                   * widget-top is scrolled out of view, keep the widget-top in view;
</span><span class="cx">                   * likewise, don't allow the widget to drop off the bottom of the window.
</span><ins>+                        * If a widget is too tall to fit in the window, don't let the height
+                        * exceed the window height so that the contents of the widget control
+                        * will become scrollable (overflow:auto).
</ins><span class="cx">                    */
</span><span class="cx">                  position_widget = function () {
</span><span class="cx">                          var offset_top = control.container.offset().top,
</span><del>-                                       height,
-                                       top,
-                                       max_top;
-
-                               height = widget_inside.outerHeight();
-                               top = Math.max( offset_top, 0 );
-                               max_top = $( window ).height() - height;
-                               top = Math.min( top, max_top );
</del><ins>+                                        window_height = $( window ).height(),
+                                       form_height = widget_form.outerHeight(),
+                                       top;
+                               widget_inside.css( 'max-height', window_height );
+                               top = Math.max(
+                                       0, // prevent top from going off screen
+                                       Math.min(
+                                               Math.max( offset_top, 0 ), // distance widget in panel is from top of screen
+                                               window_height - form_height // flush up against bottom of screen
+                                       )
+                               );
</ins><span class="cx">                           widget_inside.css( 'top', top );
</span><span class="cx">                  };
</span><span class="cx"> 
</span><span class="cx">                  theme_controls_container = $( '#customize-theme-controls' );
</span><span class="cx">                  control.container.on( 'expand', function () {
</span><ins>+                               position_widget();
</ins><span class="cx">                           customize_sidebar.on( 'scroll', position_widget );
</span><span class="cx">                          $( window ).on( 'resize', position_widget );
</span><span class="cx">                          theme_controls_container.on( 'expanded collapsed', position_widget );
</span><del>-                               position_widget();
</del><span class="cx">                   } );
</span><span class="cx">                  control.container.on( 'collapsed', function () {
</span><span class="cx">                          customize_sidebar.off( 'scroll', position_widget );
</span><ins>+                               $( window ).off( 'resize', position_widget );
</ins><span class="cx">                           theme_controls_container.off( 'expanded collapsed', position_widget );
</span><del>-                               $( window ).off( 'resize', position_widget );
</del><span class="cx">                   } );
</span><span class="cx"> 
</span><span class="cx">                  // Reposition whenever a sidebar's widgets are changed
</span><span class="lines">@@ -1375,7 +1383,6 @@
</span><span class="cx">                          return;
</span><span class="cx">                  }
</span><span class="cx"> 
</span><del>-                       complete;
</del><span class="cx">                   if ( do_expand ) {
</span><span class="cx">                          // Close all other widget controls before expanding this one
</span><span class="cx">                          wp.customize.control.each( function ( other_control ) {
</span><span class="lines">@@ -1384,18 +1391,18 @@
</span><span class="cx">                                  }
</span><span class="cx">                          } );
</span><span class="cx"> 
</span><del>-                               control.container.trigger( 'expand' );
-                               control.container.addClass( 'expanding' );
</del><span class="cx">                           complete = function () {
</span><span class="cx">                                  control.container.removeClass( 'expanding' );
</span><span class="cx">                                  control.container.addClass( 'expanded' );
</span><span class="cx">                                  control.container.trigger( 'expanded' );
</span><span class="cx">                          };
</span><span class="cx">                          if ( control.params.is_wide ) {
</span><del>-                                       inside.animate( { width: 'show' }, 'fast', complete );
</del><ins>+                                        inside.fadeIn( 'fast', complete );
</ins><span class="cx">                           } else {
</span><span class="cx">                                  inside.slideDown( 'fast', complete );
</span><span class="cx">                          }
</span><ins>+                               control.container.trigger( 'expand' );
+                               control.container.addClass( 'expanding' );
</ins><span class="cx">                   } else {
</span><span class="cx">                          control.container.trigger( 'collapse' );
</span><span class="cx">                          control.container.addClass( 'collapsing' );
</span><span class="lines">@@ -1405,7 +1412,7 @@
</span><span class="cx">                                  control.container.trigger( 'collapsed' );
</span><span class="cx">                          };
</span><span class="cx">                          if ( control.params.is_wide ) {
</span><del>-                                       inside.animate( { width: 'hide' }, 'fast', complete );
</del><ins>+                                        inside.fadeOut( 'fast', complete );
</ins><span class="cx">                           } else {
</span><span class="cx">                                  inside.slideUp( 'fast', function() {
</span><span class="cx">                                          widget.css( { width:'', margin:'' } );
</span></span></pre>
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