rgallery.module

<?php

define("RGALLERY_UPLOAD_PATH", "rgallery", TRUE);

/**
 * Implemens hook_menu().
 */
function rgallery_menu() {
  // List album
  $items['mygallery'] = array(
    'title' => 'My gallery',
    'page callback' => 'rgallery_my_gallery',
    'access callback' => 'rgallery_my_gallery_access',
    'file' => 'rgallery.album.inc',
  );
  $items['gallery/%user'] = array(
  	'title' => t('Gallery'),
    'page callback' => 'rgallery_view_gallery',
    'page arguments' => array(1),
    'access callback' => 'rgallery_gallery_access',
    'access arguments' => array(1),
    'file' => 'rgallery.album.inc',
    'type' => MENU_CALLBACK,
  );
  $items['user/%user/rgallery'] = array(
    'title' => t('RGallery settings'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('rgallery_user_settings_form'),
    'access callback' => 'user_edit_access',
    'access arguments' => array(1),
    'file' => 'rgallery.user.inc',
    'type' => MENU_LOCAL_TASK,
  );
  /**
   * Settings
   */
  $items['admin/config/rgallery/file'] = array(
    'title' => t('File information'),
    'description' => t('Configure the file information, SWFUpload.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('rgallery_file_settings_form'),
    'access arguments' => array('administer rgallery'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'rgallery.admin.inc',
    'weight' => 0,
  );
  $items['admin/config/rgallery'] = array(
    'title' => t('RGallery'),
    'description' => t('Configure the file information, SWFUpload.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('rgallery_file_settings_form'),
    'access arguments' => array('administer rgallery'),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'rgallery.admin.inc',
  );
  $items['admin/config/rgallery/styles'] = array(
    'title' => t('Styles'),
    'description' => t('Configure the styles for display images.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('rgallery_style_settings_form'),
    'access arguments' => array('administer rgallery'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'rgallery.admin.inc',
    'weight' => 1,
  );
  $items['admin/config/rgallery/display'] = array(
    'title' => t('Display'),
    'description' => t('Configure the number of images.'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('rgallery_display_settings_form'),
    'access arguments' => array('administer rgallery'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'rgallery.admin.inc',
    'weight' => 2,
  );
  // Node album configure menu
  $items['node/%rgallery_manage/photos'] = array(
    'title' => t('Photos'),
    'page callback' => 'rgallery_album_edit_photos',
    'page arguments' => array(1),
    'access callback' => 'rgallery_manage_access',
    'access arguments' => array('edit_page', 1),
    'type' => MENU_LOCAL_TASK,
    'weight' => 10,
    'file' => 'rgallery.album.inc',
  );
  $items['node/%rgallery_manage/add_photos'] = array(
    'title' => t('Add photos'),
    'page callback' => 'rgallery_album_add_photos',
    'page arguments' => array(1),
    'access callback' => 'rgallery_manage_access',
    'access arguments' => array('add', 1),
    'type' => MENU_LOCAL_TASK,
    'weight' => 11,
    'file' => 'rgallery.album.inc',
  );
  // Callback menu
  $items['rgallery/photos/upload'] = array(
    'page callback' => 'rgallery_album_photos_upload',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
    'file' => 'rgallery.album.inc',
  );
  $items['rgallery/photo/delete/%rgallery_manage_photo'] = array(
    'page callback' => 'rgallery_album_photo_delete',
    'page arguments' => array(3),
    'access callback' => 'rgallery_manage_access',
    'access arguments' => array('delete', 3),
    'type' => MENU_CALLBACK,
    'file' => 'rgallery.album.inc',
  );
  $items['rgallery/photo/save/%rgallery_manage_photo'] = array(
    'page callback' => 'rgallery_album_photo_save',
    'page arguments' => array(3),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
    'file' => 'rgallery.album.inc',
  );
  $items['rgallery/album/save/%rgallery_manage'] = array(
    'page callback' => 'rgallery_album_photo_save',
    'page arguments' => array(3),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
    'file' => 'rgallery.album.inc',
  );
  return $items;
}

/**
 * Implement hook_permission().
 */
function rgallery_permission() {
  return array(
    'view any gallery' => array(
      'title' => t('View any gallery'),
    ),
    'manage rgallery' => array(
      'title' => t('Manage all gallery'),
    ),
    'administer rgallery' => array(
      'title' => t('Configure the RGallery settings'),
    ),
  );
}

function rgallery_my_gallery_access() {
  global $user;
  if (user_is_anonymous()) return FALSE;
  if ($user->uid == 1) return TRUE;
  return user_access('access content', $user);
}

function rgallery_gallery_access($account = NULL) {
  global $user;
  if (!isset($account)) $account = $user;
  if ($user->uid == 1) return TRUE;
  
  return (($user->uid == $account->uid || variable_get('rgallery_user_'.$account->uid.'_allow_gallery', TRUE)) && user_access('access content', $user)) || user_access('view any gallery', $user);
}

/**
 * Manage access
 */
function rgallery_manage_access($op, $node = NULL, $account = NULL) {
  global $user;
  if (!isset($account)) $account = $user;
  if ($account->uid == 1) return TRUE;
  
  if (!in_array($node->type, array('ralbum', 'rphoto'))) return FALSE;
  
  switch ($op) {
    // Add photo via SWFUpload
    case 'add':
      return (user_access('create rphoto content', $account) && $account->uid == $node->uid && $node->type == 'ralbum');
    
    // Update photo on Edit photos page
    case 'edit_photo':
      if ($node->type == 'ralbum') {
        if (count(rgallery_get_photos_by_album($node)) == 0) {
          return FALSE;
        }
      }
      return ($account->uid == $node->uid && user_access('edit own rphoto content', $account)) || user_access('edit any rphoto content', $account) || user_access('manage rgallery', $account);
      
    // Display Edit photos tab on album page
    case 'edit_page':
      $photos = rgallery_get_photos_by_album($node);
      if (count($photos) > 0) {
        return ($account->uid == $node->uid && $node->type == 'ralbum') || user_access('edit any rphoto content', $account) || user_access('manage rgallery', $account);
      }
      return FALSE;
      
    // Delete photo
    case 'delete':
      return ($account->uid == $node->uid && user_access('delete own rphoto content', $account)) || user_access('delete any rphoto content', $account) || user_access('manage rgallery', $account);
  }
  return FALSE;
}

/**
 * Album access
 */
function rgallery_album_access($op, $node = NULL, $account = NULL) {
  global $user;
  $user = $account ? $account : $user;
  switch ($op) {
    case 'manage':
    case 'add_photos':
      $own = user_access('manage own rgallery content', $user) && ($user->uid == $node->uid) && ($node->type == 'ralbum');
      $any = user_access('manage any rgallery content', $user);
      return $own || $any;
    case 'edit_photos':
      $photos = rgallery_get_photos_by_album($node);
      if (count($photos) > 0) {
        $own = user_access('manage own rgallery content', $user) && $user->uid == $node->uid && $node->type == 'ralbum';
        $any = user_access('manage any rgallery content', $user);
        return $own || $any;
      }
      return FALSE;
    case 'bypass':
      return TRUE;
  }
}

/**
 * Implement hook_node_info().
 */
function rgallery_node_info() {
  return array(
    'ralbum' => array(
      'name' => t('RGallery Album'),
      'base' => 'rgallery_album',
      'description' => t("Create your album."),
      'has_title' => TRUE,
      'title_label' => t('Album title'),
      'has_body' => FALSE,
      'locked' => TRUE,
    ),
    'rphoto' => array(
      'name' => t('RGallery Photo'),
      'base' => 'rgallery_photo',
      'description' => t("Create your photo."),
      'has_title' => TRUE,
      'title_label' => t('Photo title'),
      'has_body' => TRUE,
      'body_label' => t('Photo description'),
    ),
  );
}

/**
 * Implement hook_form().
 */
function rgallery_album_form($node, &$form_state) {
  $type = node_type_get_type($node);
  $form['title'] = array(
    '#type' => 'textfield',
    '#title' => check_plain($type->title_label),
    '#required' => TRUE,
    '#default_value' => $node->title,
    '#weight' => -5,
  );
  if (!isset($node->privacy)) $node->privacy = 0;
  $form['privacy'] = array(
	  '#type' => 'select',
	  '#title' => t('Privacy'),
	  '#options' => array(
	    '1' => t('Everyone can see this album'),
	    '0' => t('Only me can see this album'),
	  ),
	  '#default_value' => $node->privacy,
	  '#weight' => -4,
	);
  return $form;
}

/**
 * Implement hook_form().
 */
function rgallery_photo_form($node, &$form_state) {
  return node_content_form($node, $form_state);
}

/**
 * Callback manage page load().
 */
function rgallery_manage_load($nid = NULL) {
  if (is_numeric($nid)) {
    $node = node_load($nid);
    if ($node->type == 'ralbum') {
      return $node;
    }
  }
  return FALSE;
}

/**
 * Callback manage page load().
 */
function rgallery_manage_photo_load($nid = NULL) {
  if (is_numeric($nid)) {
    $node = node_load($nid);
    if ($node->type == 'rphoto') {
      return $node;
    }
  }
  return FALSE;
}

/**
 * Implement hook_load().
 */
function rgallery_album_load($nodes) {
  $_nodes = $nodes;
  foreach ($_nodes as $node) {
    $nodes[$node->nid]->privacy = $node->promote;
  }
}

/**
 * Implement hook_load().
 */
function rgallery_photo_load($nodes) {
  $result = db_query('SELECT a.pid, a.aid, f.fid, f.uri, a.is_thumbnail FROM {ralbum} a, {file} f WHERE a.fid = f.fid AND pid IN (:pids)', array(':pids' => array_keys($nodes)));
  foreach ($result as $record) {
    $nodes[$record->pid]->album_id = $record->aid;
    $nodes[$record->pid]->is_thumbnail = $record->is_thumbnail;
    $nodes[$record->pid]->photo_uri = $record->uri;
    $file = file_load($record->fid);
    $nodes[$record->pid]->photo = $file;
  }
}

/**
 * Implement of hook_insert().
 */
function rgallery_album_insert($node) {
  db_update('node')
    ->fields(array(
      'promote' => $node->privacy,
    ))
    ->condition('nid', $node->nid)
    ->execute();
  db_update('node_revision')
    ->fields(array(
      'promote' => $node->privacy,
    ))
    ->condition('vid', $node->vid)
    ->execute();
  file_prepare_directory(rgallery_album_uri($node->nid), FILE_CREATE_DIRECTORY);
}

/**
 * Implement of hook_update().
 */
function rgallery_album_update($node) {
  db_update('node')
    ->fields(array(
      'promote' => $node->privacy,
    ))
    ->condition('nid', $node->nid)
    ->execute();
  db_update('node_revision')
    ->fields(array(
      'promote' => $node->privacy,
    ))
    ->condition('vid', $node->vid)
    ->execute();
}

/**
 * Implement of hook_delete().
 */
function rgallery_album_delete($node) {
  $result = db_query("SELECT a.pid as nid, f.fid, f.uri FROM {ralbum} a, {file} f WHERE a.fid = f.fid AND a.aid = :aid", array(':aid' => $node->nid));
  $file = new stdClass();
  foreach ($result as $photo) {
    node_delete($photo->nid);
    $file = file_load($photo->fid);
    file_delete($file);
  }
  db_delete('ralbum')
    ->condition('aid', $node->nid)
    ->execute();
  // Delete folder
  file_unmanaged_delete_recursive(rgallery_album_uri($node->nid));
}

/**
 * Implement of hook_delete().
 */
function rgallery_photo_delete($node) {
  db_delete('ralbum')
    ->condition('pid', $node->nid)
    ->execute();
  $fid = db_query("SELECT a.fid FROM {ralbum} a WHERE a.pid = :pid", array(':pid' => $node->nid))->fetchCol();
  if (!empty($fid)) {
    $file = file_load($fid[0]);
    file_delete($file);
  }
}

/**
 * Implement of hook_view().
 */
function rgallery_album_view($node, $view_mode = 'full') {
  global $user;
  $photos = rgallery_get_photos_by_album($node);
  drupal_add_js(rgallery_path() . '/js/view.js');
  drupal_add_css(rgallery_path() .'/css/rgallery.css');
  
  if (!rgallery_gallery_access() && $node->privacy == 0) drupal_access_denied();
  
  $menus = array();
  if ($view_mode == 'full') {
    if (count($photos) > 1) {
      $menus[] = t('!count photos', array('!count' => count($photos)));
    }
    else {
      $menus[] = t('!count photo', array('!count' => count($photos)));
    }
    $menus[] = l(t('Back to gallery'), 'gallery/'. $node->uid);
    if (rgallery_manage_access('delete', $node)) {
      $menus[] = l(t('Delete album'), 'node/'. $node->nid .'/delete');
    }
  }
  $menus = implode(' | ', $menus);
  
  $output = NULl;
  if (count($photos)) {
    foreach ($photos as $photo) {
      $output .= '<li id="rgallery-photo-'. $photo['nid'] .'">'. l($photo['image'], 'node/'. $photo['nid'], array('html' => TRUE)) .'</li>';
    }
  }
  else {
    $output .= t('<h6>There are no photos in this album.</h6>');
  }
  
  $output = $menus.'<ul id="rgallery-view-photos-list">'. $output .'</ul>';
  $attributes = array('id' => 'rgallery-view-photos-wrapper');
  $node->content['body'][0]['#markup'] = theme('rgallery_wrapper', array('data' => $output, 'attributes' => $attributes));
  return $node;
}

/**
 * Implement hook_view().
 */
function rgallery_photo_view($node, $view_mode = 'full') {
  $album_node = node_load($node->album_id);
  drupal_add_css(rgallery_path() .'/css/rgallery.css');
  
  if (!rgallery_gallery_access() && $album_node->privacy == 0) drupal_access_denied();
  
  if ($view_mode == 'full') {
    drupal_set_title(t('Photo of !title', array('!title' => $album_node->title)));
    $node->content['navigation'][0]['#markup'] = '<div class="rgallery-view-photo-nav">'. rgallery_render_nav($node->album_id, $node->nid) .'</div>';
  }
  
  // image
  $preset = variable_get('rgallery_imagestyle_preview', NULL);
  $image = theme('image_style', array('style_name' => $preset, 'path' => $node->photo_uri));
  $node->content['body'][0]['#markup'] = '<div class="rgallery-body">'. l($image, file_create_url($node->photo_uri), array('html' => TRUE)) .'</div>';
  $node->content['body'][0]['#weight'] = 0;
  
  // description
  $description = $node->body[LANGUAGE_NONE][0]['value'] ? $node->body[LANGUAGE_NONE][0]['value'] : 'no description';
  $node->content['description'][0]['#markup'] = '<div class="rgallery-description">'. $description .'</div>';
  $node->content['description'][0]['#weight'] = 1;
  return $node;
}

/**
 * Implement hook_form_alter().
 */
function rgallery_form_rphoto_node_form_alter(&$form, &$form_state) {
  drupal_set_message('You have to add or edit photo on album node, change this form will break your gallery.');
  drupal_access_denied();
}

/**
 * Implement hook_theme().
 */
function rgallery_theme($existing, $type, $theme, $path) {
  return array(
    'rgallery_wrapper' => array(
      'variables' => array('data' => NULL, 'attributes' => NULL),
      'template' => 'rgallery-wrapper',
    ),
    'rgallery_photos_list' => array(
      'variables' => array('photos' => NULL),
      'template' => 'rgallery-photos-list',
    ),
    'rgallery_photo_item' => array(
      'variables' => array('nid' => NULL, 'image' => NULL, 'description' => NULL, 'cover' => NULL, 'delete' => NULL),
      'template' => 'rgallery-photo-item',
    ),
    'rgallery_album_item' => array(
      'variables' => array('thumbnail' => NULL, 'title' => NULL, 'count' => NULL, 'link' => NULL),
      'template' => 'rgallery-album-item',
    ),
  );
}

/**
 * Process variables for rgallery-wrapper.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $data: display output
 * - $attributes: html attributes
 *
 * @see rgallery-wrapper.tpl.php
 */
function template_preprocess_rgallery_wrapper(&$variables) {
  $attributes = $variables['attributes'];
  $class = empty($attributes['class']) ? ' class="rgallery-wrapper"' : ' class="'. $attributes['class'] .'"';
  $id = empty($attributes['id']) ? '' : ' id="'. $attributes['id'] .'"';
  $style = empty($attributes['style']) ? '' : ' style="'. $attributes['style'] .'"';
  $variables['attributes'] = $class.$id.$style;
}

/**
 * Process variables for rgallery-photo-item.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $nid: display output
 * - $image: html attributes
 * - $description:
 * - $is_thumbnail: 
 *
 * @see rgallery-photo-item.tpl.php
 */
function template_preprocess_rgallery_photo_item(&$variables) {
  
}

/**
 * Process variables for rgallery-album-item.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $thumbnail: thumbnail image
 * - $title: album title
 * - $count: number of photos in album
 * - $link: album link
 *
 * @see rgallery-album-item.tpl.php
 */
function template_preprocess_rgallery_album_item(&$variables) {
  $variables['thumbnail'] = l($variables['thumbnail'], $variables['link'], array('html' => TRUE));
  $variables['title'] = l($variables['title'], $variables['link']);
  if ($variables['count'] > 1) {
    $variables['count'] = t('!count photos', array('!count' => $variables['count']));
  }
  else {
    $variables['count'] = t('!count photo', array('!count' => $variables['count']));
  }
  unset($variables['link']);
}

/**
 * Process variables for rgallery-photos-list.tpl.php.
 *
 * The $variables array contains the following arguments:
 * - $photos: list of photos
 *
 * @see rgallery-photos-list.tpl.php
 */
function template_preprocess_rgallery_photos_list(&$variables) {
  $photos = $variables['photos'];
  $output = '';
  if (count($photos)) {
    foreach ($photos as $nid => $photo) {
      $photo_node = node_load($nid);
      $image = $photo['image'];
      
      // Description
      if ($photo['description']) {
        $description = str_replace(chr(10), '', nl2br($photo['description']));
      }
      else {
        if (rgallery_manage_access('edit_photo', $photo_node)) {
          $description = t('Add a description');
        }
        else {
          $description = t('No description');
        }
      }
      
      // Delete button
      $delete = '';
      if (rgallery_manage_access('delete', $photo_node)) {
        $delete = '<div class="rgallery-delete" id="delete-'.$nid.'">'. t('Remove') .'</div>';
      }
      
      // Form select thumbnail cover
      $cover = '';
      if (rgallery_manage_access('edit_photo', $photo_node)) {
        $cover = '<div class="rgallery-edit-photo-thumbnail">';
        $is_thumbnail = $photo['is_thumbnail'] ? ' checked="checked"' : '';
        $cover .= '  <input type="radio" id="thumbnail-'. $nid .'" name="thumbnail"'. $is_thumbnail .' />';
        $cover .= '  <label for="thumbnail-'. $nid .'">'. t('Use this photo as cover.') .'</label>';
        $cover .= '</div>';
      }
      
      $output .= theme('rgallery_photo_item', array('nid' => $nid, 'image' => $image, 'description' => $description, 'cover' => $cover, 'delete' => $delete));
    }
  }
  $variables['photos'] = $output;
}

/**
 * Return all photos in album
 */
function rgallery_get_photos_by_album($node = NULL) {
  if (is_numeric($node)) $node = node_load($node);
  if ($node->type == 'ralbum') {
    
    if ($node->privacy == 0) {
      if (!($node->uid == $GLOBALS['user']->uid || user_access('view any gallery'))) return FALSE;
    }
    
    $_photos = db_query("SELECT a.aid, a.pid AS nid, f.uri, a.weight, a.is_thumbnail FROM {ralbum} a, {file} f WHERE a.fid = f.fid AND a.aid = :aid ORDER BY a.weight ASC", array(':aid' => $node->nid));
    $photos = array();
    foreach ($_photos as $i => $photo) {
      $preset = variable_get('rgallery_imagestyle_thumbnail', FALSE);
      $image = ($preset) ? theme('image_style', array('style_name' => $preset, 'path' => $photo->uri)) : theme('image', $photo->uri);
      $node = node_load($photo->nid);
      $photos[$photo->nid] = array(
        'nid' => $node->nid,
        'title' => $node->title,
        'description' => $node->body[LANGUAGE_NONE][0]['value'],
        'weight' => $photo->weight,
        'image' => $image,
        'is_thumbnail' => $photo->is_thumbnail,
      );
    }
    return $photos;
  }
  return FALSE;
}

/**
 * Return thumbnail album
 */
function rgallery_get_thumbnail($node = NULL) {
  if (is_numeric($node)) {
    $node = node_load($node);
  }
  if ($node->type == 'ralbum') {
    $uri = db_query("SELECT f.uri FROM {ralbum} a, {file} f WHERE a.fid = f.fid AND a.aid = :aid AND a.is_thumbnail = 1", array(':aid' => $node->nid))->fetchCol();
    if (!empty($uri)) {
      if ($preset = variable_get('rgallery_imagestyle_cover', FALSE)) {
        return theme('image_style', array('style_name' => $preset, 'path' => $uri[0]));
      }
    }
  }
  return FALSE;
}

/**
 * Return navigator for photo album
 */
function rgallery_render_nav($aid, $pid) {
  $node = node_load($aid);
  $photos = rgallery_get_photos_by_album($node);
  $pids = array_keys($photos);
  $current = array_search($pid, $pids);
  $count = count($photos);
  
  $left_items = array();
  $left_items[] = t('Photo !current of !count', array('!current' => $current + 1, '!count' => $count));
  $left_items[] = l(t('Back to album'), 'node/'. $aid);
  
  $right_items = array();
  $prev_index = $current - 1 < 0 ? $count - 1 : $current - 1;
  $next_index = $current + 1 == $count ? 0 : $current + 1;
  $right_items[] = l(t('Previous'), 'node/'. $pids[$prev_index]);
  $right_items[] = l(t('Next'), 'node/'. $pids[$next_index]);
  
  $left = '<div class="rgallery-view-photo-nav-left">'. implode(' | ', $left_items) .'</div>';
  $right = '<div class="rgallery-view-photo-nav-right">'. implode(' | ', $right_items) .'</div>';
  return $left . $right;
}

/**
 * Return current language prefix
 */
function rgallery_get_lang() {
  if (module_exists('locale')) {
    global $language;
    return $language->language;
  }
  return LANGUAGE_NONE;
}

/**
 * Return album path
 */
function rgallery_album_uri($nid) {
  return file_build_uri(RGALLERY_UPLOAD_PATH.'/'.$nid);
}

/**
 * Return module path
 */
function rgallery_path() {
  return drupal_get_path('module', 'rgallery');
}