1 files changed, 115 insertions, 0 deletions
diff --git a/modules/gallery/helpers/block_manager.php b/modules/gallery/helpers/block_manager.php
new file mode 100644
index 0000000..a227946
--- /dev/null
+++ b/modules/gallery/helpers/block_manager.php
@@ -0,0 +1,115 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2013 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class block_manager_Core {
+  static function get_active($location) {
+    return unserialize(module::get_var("gallery", "blocks_$location", "a:0:{}"));
+  }
+
+  static function set_active($location, $blocks) {
+    module::set_var("gallery", "blocks_$location", serialize($blocks));
+  }
+
+  static function add($location, $module_name, $block_id) {
+    $blocks = block_manager::get_active($location);
+    $blocks[random::int()] = array($module_name, $block_id);
+
+    block_manager::set_active($location, $blocks);
+  }
+
+  static function activate_blocks($module_name) {
+    $block_class = "{$module_name}_block";
+    if (class_exists($block_class) && method_exists($block_class, "get_site_list")) {
+      $blocks = call_user_func(array($block_class, "get_site_list"));
+      foreach (array_keys($blocks) as $block_id) {
+        block_manager::add("site_sidebar", $module_name, $block_id);
+      }
+    }
+  }
+
+  static function remove($location, $block_id) {
+    $blocks = block_manager::get_active($location);
+    unset($blocks[$block_id]);
+    block_manager::set_active($location, $blocks);
+  }
+
+  static function remove_blocks_for_module($location, $module_name) {
+    $blocks = block_manager::get_active($location);
+    foreach ($blocks as $key => $block) {
+      if ($block[0] == $module_name) {
+        unset($blocks[$key]);
+      }
+    }
+    block_manager::set_active($location, $blocks);
+  }
+
+  static function deactivate_blocks($module_name) {
+    $block_class = "{$module_name}_block";
+    if (class_exists($block_class) && method_exists($block_class, "get_site_list")) {
+      $blocks = call_user_func(array($block_class, "get_site_list"));
+      foreach  (array_keys($blocks) as $block_id) {
+        block_manager::remove_blocks_for_module("site_sidebar", $module_name);
+      }
+    }
+
+    if (class_exists($block_class) && method_exists($block_class, "get_admin_list")) {
+      $blocks = call_user_func(array($block_class, "get_admin_list"));
+      foreach (array("dashboard_sidebar", "dashboard_center") as $location) {
+        block_manager::remove_blocks_for_module($location, $module_name);
+      }
+    }
+  }
+
+  static function get_available_admin_blocks() {
+    return self::_get_blocks("get_admin_list");
+  }
+
+  static function get_available_site_blocks() {
+    return self::_get_blocks("get_site_list");
+  }
+
+  private static function _get_blocks($function) {
+    $blocks = array();
+
+    foreach (module::active() as $module) {
+      $class_name = "{$module->name}_block";
+      if (class_exists($class_name) && method_exists($class_name, $function)) {
+        foreach (call_user_func(array($class_name, $function)) as $id => $title) {
+          $blocks["{$module->name}:$id"] = $title;
+        }
+      }
+    }
+    return $blocks;
+  }
+
+  static function get_html($location, $theme=null) {
+    $active = block_manager::get_active($location);
+    $result = "";
+    foreach ($active as $id => $desc) {
+      if (class_exists("$desc[0]_block") && method_exists("$desc[0]_block", "get")) {
+        $block = call_user_func(array("$desc[0]_block", "get"), $desc[1], $theme);
+        if (!empty($block)) {
+          $block->id = $id;
+          $result .= $block;
+        }
+      }
+    }
+    return $result;
+  }
+}