Partial implementation of ticket #80. Provide auto complete and suggestions on the tag add form in the tag sidebar block. Updated the xss golden file as well. Still to do figure out how toget it into the edit popup dialog

modules/gallery/tests/xss_data.txt

@@ -442,8 +442,8 @@ modules/tag/views/admin_tags.html.php                        50  DIRTY $tag->id
 modules/tag/views/admin_tags.html.php                        50        $tag->name
 modules/tag/views/admin_tags.html.php                        51  DIRTY $tag->count
 modules/tag/views/admin_tags.html.php                        52  DIRTY $tag->id
-modules/tag/views/tag_block.html.php                         3   DIRTY $cloud
-modules/tag/views/tag_block.html.php                         5   DIRTY $form
+modules/tag/views/tag_block.html.php                         13  DIRTY $cloud
+modules/tag/views/tag_block.html.php                         15  DIRTY $form
 modules/tag/views/tag_cloud.html.php                         4   DIRTY $tag->count
 modules/tag/views/tag_cloud.html.php                         4   DIRTY $max_count
 modules/tag/views/tag_cloud.html.php                         5   DIRTY $tag->count

modules/tag/controllers/tags.php

@@ -78,4 +78,21 @@ class Tags_Controller extends REST_Controller {
 
     return tag::get_add_form($item);
   }
+
+  public function autocomplete() {
+    $tags = array();
+    $tag_parts = preg_split("#[,\s;]+# ", $this->input->get("q"));
+    $limit = $this->input->get("limit");
+    $tag_part = end($tag_parts);
+    $tag_list = ORM::factory("tag")
+      ->like("name", "{$tag_part}%", false)
+      ->orderby("name", "ASC")
+      ->limit($limit)
+      ->find_all();
+    foreach ($tag_list as $tag) {
+      $tags[] = $tag->name;
+    }
+
+    print implode("\n", $tags);
+  }
 }

modules/tag/helpers/tag.php

@@ -104,7 +104,7 @@ class tag_Core {
       ($item->is_photo() ? t("Add tag to photo") : t("Add tag to movie"));
 
     $group = $form->group("add_tag")->label("Add Tag");
-    $group->input("name")->label($label)->rules("required|length[1,64]");
+    $group->input("name")->label($label)->rules("required");
     $group->hidden("item_id")->value($item->id);
     $group->submit("")->value(t("Add Tag"));
     return $form;

modules/tag/helpers/tag_theme.php

@@ -19,6 +19,8 @@
  */
 class tag_theme_Core {
   static function head($theme) {
+    $theme->css("jquery.autocomplete.css");
+    $theme->script("jquery.autocomplete.js");
     $theme->script("tag.js");
   }
 

modules/tag/js/tag.js

@@ -66,3 +66,18 @@ function editInPlace(element) {
   };
   ajaxify_editInPlaceForm();
 }
+
+function formatTagAutoCompleteResult(row) {
+  var text = $("#gAddTagForm input:text").val();
+  if (/[\s,;]/.test(text)) {
+    for (var i= text.length - 1; i >= 0; i--) {
+      var chr = text.charAt(i);
+      if (chr == " " || chr == "," || chr == ";") {
+        break;
+      }
+    }
+    return text.substr(0, i + 1) + row[0];
+  } else {
+    return row[0];
+  }
+}

modules/tag/views/tag_block.html.php

@@ -1,4 +1,14 @@
 <?php defined("SYSPATH") or die("No direct script access.") ?>
+<script>
+  $("#gAddTagForm").ready(function() {
+    var url = $("#gTagCloud").attr("title") + "/autocomplete";
+    $("#gAddTagForm input:text").autocomplete(
+      url, {
+        max: 30,
+        formatResult: formatTagAutoCompleteResult}
+    );
+  });
+</script>
 <div id="gTagCloud" title="<?= url::site("tags") ?>">
   <?= $cloud ?>
 </div>