#610204 by effulgentsia, Gábor Hojtsy, sun, Damien Tournoud and ksenzee: API changes to support overlays: lays ground work for implementation.

includes/batch.inc

@@ -109,11 +109,15 @@ function _batch_progress_page_js() {
   $current_set = _batch_current_set();
   drupal_set_title($current_set['title'], PASS_THROUGH);
 
+  // Merge required query parameters for batch processing into those provided by
+  // batch_set() or hook_batch_alter().
+  $batch['url_options']['query']['id'] = $batch['id'];
+
   $js_setting = array(
     'batch' => array(
       'errorMessage' => $current_set['error_message'] . '<br />' . $batch['error_message'],
       'initMessage' => $current_set['init_message'],
-      'uri' => url($batch['url'], array('query' => array('id' => $batch['id']))),
+      'uri' => url($batch['url'], $batch['url_options']),
     ),
   );
   drupal_add_js($js_setting, 'setting');
@@ -189,7 +193,12 @@ function _batch_progress_page_nojs() {
     ob_end_clean();
   }
 
-  $url = url($batch['url'], array('query' => array('id' => $batch['id'], 'op' => $new_op)));
+  // Merge required query parameters for batch processing into those provided by
+  // batch_set() or hook_batch_alter().
+  $batch['url_options']['query']['id'] = $batch['id'];
+  $batch['url_options']['query']['op'] = $new_op;
+
+  $url = url($batch['url'], $batch['url_options']);
   drupal_add_html_head('<meta http-equiv="Refresh" content="0; URL=' . $url . '">');
 
   return theme('progress_bar', array('percent' => $percentage, 'message' => $message));

includes/form.inc

@@ -2963,7 +2963,9 @@ function _form_set_class(&$element, $class = array()) {
  *       'operations' and 'finished' functions, for instance if they don't
  *       reside in the original '.module' file. The path should be relative to
  *       the base_path(), and thus should be built using drupal_get_path().
- *     'css' : an array of paths to CSS files to be used on the progress page.
+ *     'css': an array of paths to CSS files to be used on the progress page.
+ *     'url_options': options passed to url() when constructing redirect
+ *       URLs for the batch.
  *
  * Operations are added as new batch sets. Batch sets are used to ensure
  * clean code independence, ensuring that several batches submitted by
@@ -3051,6 +3053,7 @@ function batch_process($redirect = NULL, $url = 'batch', $redirect_callback = 'd
       'current_set' => 0,
       'progressive' => TRUE,
       'url' => $url,
+      'url_options' => array(),
       'source_page' => $_GET['q'],
       'redirect' => $redirect,
       'theme' => $GLOBALS['theme_key'],

misc/drupal.js

@@ -344,4 +344,15 @@ Drupal.theme.prototype = {
   }
 };
 
+/**
+ * Return whether the given variable is an object.
+ *
+ * The HEAD version of jQuery (http://code.jquery.com/jquery-nightly.js)
+ * includes an isObject() function, so when that gets released and incorporated
+ * into Drupal, this can be removed.
+ */
+$.extend({isObject: function(value) {
+  return (value !== null && typeof value === 'object');
+}});
+
 })(jQuery);

misc/tableheader.js

@@ -18,8 +18,9 @@ Drupal.behaviors.tableHeader = {
     var headers = [];
 
     $('table.sticky-enabled thead', context).once('tableheader', function () {
-      // Clone thead so it inherits original jQuery properties.
-      var headerClone = $(this).clone(true).insertBefore(this.parentNode).wrap('<table class="sticky-header"></table>').parent().css({
+      // Clone the table header so it inherits original jQuery properties. Hide
+      // the table to avoid a flash of the header clone upon page load.
+      var headerClone = $(this).clone(true).hide().insertBefore(this.parentNode).wrap('<table class="sticky-header"></table>').parent().css({
         position: 'fixed',
         top: '0px'
       });
@@ -32,6 +33,9 @@ Drupal.behaviors.tableHeader = {
       headerClone.table = table;
       // Finish initializing header positioning.
       tracker(headerClone);
+      // We hid the header to avoid it showing up erroneously on page load;
+      // we need to unhide it now so that it will show up when expected.
+      $(headerClone).children('thead').show();
 
       $(table).addClass('sticky-table');
     });

modules/locale/locale.test

@@ -237,7 +237,7 @@ class LocaleTranslationFunctionalTest extends DrupalWebTestCase {
     $this->clickLink(t('edit'));
     // We save the lid from the path.
     $matches = array();
-    preg_match('!admin/config/regional/translate/edit/(\d)+!', $this->getUrl(), $matches);
+    preg_match('!admin/config/regional/translate/edit/(\d+)!', $this->getUrl(), $matches);
     $lid = $matches[1];
     // No t() here, it's surely not translated yet.
     $this->assertText($name, t('name found on edit screen.'));

modules/toolbar/toolbar.tpl.php

@@ -6,15 +6,23 @@
  * Default template for admin toolbar.
  *
  * Available variables:
+ * - $classes: String of classes that can be used to style contextually through
+ *   CSS. It can be manipulated through the variable $classes_array from
+ *   preprocess functions. The default value has the following:
+ *   - toolbar: The current template type, i.e., "theming hook".
  * - $toolbar['toolbar_user']: User account / logout links.
  * - $toolbar['toolbar_menu']: Top level management menu links.
  * - $toolbar['toolbar_drawer']: A place for extended toolbar content.
  *
+ * Other variables:
+ * - $classes_array: Array of html class attribute values. It is flattened
+ *   into a string within the variable $classes.
+ *
  * @see template_preprocess()
- * @see template_preprocess_admin_toolbar()
+ * @see template_preprocess_toolbar()
  */
 ?>
-<div id="toolbar" class="clearfix">
+<div id="toolbar" class="<?php print $classes; ?> clearfix">
   <div class="toolbar-menu clearfix">
     <?php if ($toolbar['toolbar_drawer']):?>
       <span class="toggle toggle-active"><?php print t('Open'); ?></span>