added view switching to collection templates

islandora_basic_collection/theme/islandora-basic-collection-wrapper.tpl.php

@@ -25,6 +25,7 @@
 
 <div class="islandora-basic-collection-wrapper">
 <div class="islandora-basic-collection clearfix">
+  <?php print ($switch_view_link) ?>
   <?php print($collection_pager); ?>
   <?php print ($collection_content); ?>
   <?php print($collection_pager); ?>

islandora_basic_collection/theme/islandora_basic_collection.theme.inc

@@ -18,12 +18,25 @@ function islandora_basic_collection_preprocess_islandora_basic_collection_wrappe
   pager_default_initialize($total_count, $page_size);
   $variables['collection_pager'] = theme('pager', array('quantity' => 10));
   $display = (empty($_GET['display'])) ? 'list' : $_GET['display'];
+  $link_text = (empty($_GET['display'])) ? 'grid' : $_GET['display'];
+  $query_params = drupal_get_query_parameters($_GET);
+
   if ($display == 'grid') {
+    $query_params['display'] = 'list';
+    $link_text = 'list view';
+    $link_class = 'islandora-view-default';
     $collection_content = theme('islandora_basic_collection_grid', array('islandora_object' => $islandora_object, 'collection_results' => $results));
   }
   else {
+    $query_params['display'] = 'grid';
+    $link_text = 'grid view';
+    $link_class = 'islandora-view-grid';
     $collection_content = theme('islandora_basic_collection', array('islandora_object' => $islandora_object, 'collection_results' => $results));
   }
+  global $base_url;
+  $link = l($link_text, $base_url . '/islandora/object/' . $islandora_object->id, array('attributes' => array('class' => $link_class),
+    'query' => $query_params));
+  $variables['switch_view_link'] = $link;
   $variables['collection_content'] = $collection_content;
 }