gallery_menu/gallery_menu.module

   1 <?php
   2 // $Id$
   3
   4 /**
   5  * gallery_menu.module
   6  */
   7
   8 /**
   9  * Implementation of hook_menu().
  10  */
  11 function gallery_menu_menu($may_cache) {
  12   $items = array();
  13   if (variable_get('gallery_valid', 0)) {
  14     if ($may_cache) {
  15       $items[] = array(
  16         'path' => 'admin/settings/gallery/menu',
  17         'title' => t('Menu'),
  18         'callback' => 'drupal_get_form',
  19         'callback arguments' => '_gallery_menu_settings',
  20         'access' => user_access('administer gallery settings'),
  21         'type' => MENU_LOCAL_TASK,
  22         'weight' => 6
  23       );
  24     }
  25     else {
  26       $items = gallery_menu_build_menu();
  27     }
  28   }
  29
  30   return $items;
  31 }
  32
  33 /**
  34  * Implementation of hook_enable().
  35  */
  36 function gallery_menu_enable() {
  37   variable_set('gallery_page_callback', 'gallery_menu_page');
  38 }
  39
  40 /**
  41  * Implementation of hook_disable().
  42  */
  43 function gallery_menu_disable() {
  44   variable_del('gallery_page_callback');
  45 }
  46
  47 /**
  48  * Function gallery_menu_page().
  49  */
  50 function gallery_menu_page() {
  51   $result = gallery_page(TRUE);
  52   if (isset($result['themeData']['pageUrl']['itemId'])) {
  53     $id = $result['themeData']['pageUrl']['itemId'];
  54     $item = gallery_item_details($id);
  55     if ($item['type'] != 'GalleryAlbumItem') {
  56       $id = $item['parent'];
  57     }
  58     list($ret, $parents) = GalleryCoreApi::fetchParentSequence($id);
  59     if ($ret) {
  60       gallery_error(t('Error fetching item parents'), $ret);
  61     }
  62     else {
  63       array_shift($parents);
  64       $path = 'gallery/'. (count($parents) ? implode('/', $parents) .'/' : '') . $id;
  65       menu_set_active_item($path);
  66     }
  67   }
  68
  69   return $result['bodyHtml'];
  70 }
  71
  72 /**
  73  * Function gallery_menu_album().
  74  */
  75 function gallery_menu_album($id) {
  76   // Redirect to true album url (from the virtual menu path)
  77   $url = gallery_generate_url(array('itemId' => $id), FALSE);
  78   drupal_goto($url);
  79 }
  80
  81 /**
  82  * Function gallery_menu_build_menu().
  83  */
  84 function gallery_menu_build_menu() {
  85   global $user;
  86   $items = array();
  87   if (!_gallery_init(TRUE)) {
  88     return $items;
  89   }
  90
  91   $depth = variable_get('gallery_menu_depth', 0);
  92   $tree = _gallery_menu_album_tree(NULL, $depth ? $depth : NULL);
  93   $cid = 'gallery_menu:'. $user->uid .':'. md5(serialize($tree));
  94   if ($cache = cache_get($cid)) {
  95     $items = unserialize($cache->data);
  96   }
  97   else {
  98     _gallery_menu_traverse($tree, $items);
  99     cache_set($cid, 'cache', serialize($items), CACHE_TEMPORARY);
 100   }
 101
 102   GalleryEmbed::done();
 103   return $items;
 104 }
 105
 106 /**
 107  * Function _gallery_menu_album_tree().
 108  */
 109 function _gallery_menu_album_tree($root = NULL, $depth = NULL, $user = NULL) {
 110   list($ret, $tree) = GalleryCoreApi::fetchAlbumTree($root, $depth, $user);
 111   if ($ret) {
 112     gallery_error(t('Error fetching album tree'), $ret);
 113     return FALSE;
 114   }
 115
 116   return $tree;
 117 }
 118
 119 /**
 120  * Function _gallery_menu_traverse().
 121  */
 122 function _gallery_menu_traverse(&$tree, &$items) {
 123   static $parents = array();
 124   foreach (array_keys($tree) as $id) {
 125     $album = gallery_item_details($id);
 126     if (variable_get('gallery_menu_show_'. $id, 1)) {
 127       $path = 'gallery/'. (count($parents) ? implode('/', $parents) .'/' : '') . $id;
 128       $items[] = array(
 129         'path' => $path,
 130         'title' => htmlspecialchars_decode($album['title']),
 131         'callback' => 'gallery_menu_album',
 132         'callback arguments' => array($id),
 133         'access' => user_access('access gallery'),
 134         'type' => MENU_DYNAMIC_ITEM
 135       );
 136       if (count($tree[$id])) {
 137         array_push($parents, $id);
 138         _gallery_menu_traverse($tree[$id], $items);
 139         array_pop($parents);
 140       }
 141     }
 142     $tree[$id] += $album;
 143   }
 144 }
 145
 146 /**
 147  * Function _gallery_menu_settings().
 148  */
 149 function _gallery_menu_settings() {
 150   $form['menu'] = array(
 151     '#type' => 'fieldset',
 152     '#title' => t('Gallery menu settings'),
 153     '#collapsible' => FALSE,
 154     '#collapsed' => FALSE,
 155   );
 156   $form['menu']['gallery_menu_depth'] = array(
 157     '#type' => 'textfield',
 158     '#title' => t('Depth of Gallery albums'),
 159     '#default_value' => variable_get('gallery_menu_depth', 0),
 160     '#description' => 'Depth of album hierarchy to include (\'0\' for infinite).'
 161   );
 162
 163   // Item visibility settings
 164   $form['menu']['items'] = array(
 165     '#type' => 'fieldset',
 166     '#title' => t('Menu Items'),
 167     '#collapsible' => TRUE,
 168     '#collapsed' => TRUE
 169   );
 170   $form['menu']['items'][] = _gallery_menu_settings_table();
 171
 172   $form['#submit']['_gallery_menu_settings_submit'] = array();
 173   $form['#submit']['system_settings_form_submit'] = array();
 174   return system_settings_form($form);
 175 }
 176
 177 /**
 178  * Function _gallery_menu_settings_submit().
 179  */
 180 function _gallery_menu_settings_submit($form_id, $form_values) {
 181   cache_clear_all('gallery_menu:', 'cache', TRUE);
 182 }
 183
 184 /**
 185  * Function _gallery_menu_settings_table().
 186  */
 187 function _gallery_menu_settings_table() {
 188   if (!_gallery_init(TRUE)) {
 189     return array();
 190   }
 191
 192   $depth = variable_get('gallery_menu_depth', 0);
 193   $tree = _gallery_menu_album_tree(NULL, $depth ? $depth : NULL);
 194
 195   $form = _gallery_menu_settings_traverse($tree);
 196   $form['#theme'] = 'gallery_menu_settings_table';
 197
 198   GalleryEmbed::done();
 199   return $form;
 200 }
 201
 202 /**
 203  * Function _gallery_menu_album_traverse().
 204  */
 205 function _gallery_menu_settings_traverse(&$tree) {
 206   static $parents = array();
 207   foreach (array_keys($tree) as $id) {
 208     $album = gallery_item_details($id);
 209     $enabled = variable_get('gallery_menu_show_'. $id, 1);
 210     $form[$id]['title'] = array('#value' => implode('', $parents) .' '. $album['title']);
 211     $form[$id]['checkbox']['gallery_menu_show_'. $id] = array(
 212       '#type' => 'checkbox',
 213       '#title' => '',
 214       '#default_value' => $enabled
 215     );
 216     if (count($tree[$id]) && $enabled) {
 217       array_push($parents, '-');
 218       $form[$id]['children'] = _gallery_menu_settings_traverse($tree[$id]);
 219       array_pop($parents);
 220     }
 221     $tree[$id] += $album;
 222   }
 223
 224   return $form;
 225 }
 226
 227 /**
 228  * Theme function : theme_gallery_menu_settings_table().
 229  */
 230 function theme_gallery_menu_settings_table($form, $rows = array()) {
 231   static $depth = 0;
 232   foreach (element_children($form) as $key) {
 233     if (isset($form[$key]['title'])) {
 234       $row = array();
 235       $row[] = drupal_render($form[$key]['title']);
 236       $row[] = drupal_render($form[$key]['checkbox']);
 237       $rows[] = $row;
 238     }
 239     if (isset($form[$key]['children'])) {
 240       $depth++;
 241       $rows = theme_gallery_menu_settings_table($form[$key]['children'], $rows);
 242     }
 243   }
 244
 245   $depth--;
 246   return ($depth < 0) ? theme('table', array(t('Album'), t('Show')), $rows) : $rows;
 247 }