[uml] Drupal\ooe\Block

  /**
   * Delegate for hook_block_info();
   * 
   * IMPORTANT: this version uses an OOE IBlockSet with multiple 
   * IBlock implementations to encapsulate the block info arrays !
   * 
   * Adapted from @link https://drupal.org/node/1104464 Declaring the block @endlink
   * 
   * 'You can use a given hook exactly once in any module, 
   * so this hook must declare all blocks the module needs.'
   * 
   */
  public function block_info() {
 
    $blockSet = $this->factory()->newBlockSet();
 
    $blockSet->addBlock($this->block_current_posts());
 
    $blockSet->addBlock($this->block_demo());
 
    return $blockSet->get();
  }
 
  /**
   *
   * @var \Drupal\ooe\Block\IBlock
   */
  private $block_current_posts;
 
  /**
   *
   * @return \Drupal\ooe\Block\IBlock
   *   Lazily creates the current posts block.
   */
  protected function block_current_posts() {
    if (empty($this->block_current_posts)) {
      $this->block_current_posts = $this->factory()->newBlock(
          $this->getModule() . "_block_current_posts", $this->getModuleDisplayName() . ': Current posts');
      $this->block_current_posts
          ->setCache(BlockCacheKind::CACHE_PER_ROLE)
          ->setStatus(BlockStatusKind::ENABLED);
    }
    return $this->block_current_posts;
  }
 
  /**
   *
   * @var \Drupal\ooe\Block\IBlock
   */
  private $block_demo;
 
  /**
   *
   * @return \Drupal\ooe\Block\IBlock
   *   Lazily creates a demo block.
   */
  protected function block_demo() {
    if (empty($this->block_demo)) {
      $this->block_demo = $this->factory()->newBlock(
          $this->getModule() . "_block_demo", $this->getModuleDisplayName() . ': Demo block');
      $this->block_demo
          ->setCache(BlockCacheKind::CACHE_PER_ROLE)
          ->setRegion($this->region_sidebar_1st())
          ->setStatus(BlockStatusKind::ENABLED);
    }
    return $this->block_demo;
  }
 
  /**
   *
   * @return \Drupal\ooe\Layout\IRegion 
   *   A sidebar region. 
   */
  private $region_sidebar_1st;
 
  /**
   *
   * @return \Drupal\ooe\Layout\IRegion
   *   Lazily creates a Bartik sidebar region. 
   */
  protected function region_sidebar_1st() {
    if (empty($this->region_sidebar_1st)) {
      $this->region_sidebar_1st = $this->factory()->newRegion(BartikRegions::SIDEBAR_FIRST);
    }
    return $this->region_sidebar_1st;
  }
 
  /**
   * Implements hook_block_view().
   * 
   * Delegates to OOE IBlockView implementations 
   * for construction of the block view arrays !
   * 
   * @param type $delta 
   */
  public function block_view($delta = '') {
 
    switch ($delta) {
      case $this->block_current_posts()->getDelta():
        return $this->blockViewCurrentPosts()->get();
 
      case $this->block_demo()->getDelta():
        return $this->blockViewDemo()->get();
    }
  }
 
  /**
   *
   * @var \Drupal\ooe\Block\IBlockView 
   */
  private $blockViewCurrentPosts;
 
  /**
   *
   * @return \Drupal\ooe\Block\IBlockView 
   *   Lazily creates a block view for the current posts.
   */
  protected function blockViewCurrentPosts() {
    if (empty($this->blockViewCurrentPosts)) {
      $this->blockViewCurrentPosts = new CurrentPostsBlockView(
              $this->block_current_posts(),
              $this->getModuleDisplayName() . ': Current posts'
      );
    }
    return $this->blockViewCurrentPosts;
  }
 
  /**
   *
   * @var \Drupal\ooe\Block\IBlockView 
   */
  private $blockViewDemo;
 
  /**
   *
   * @return \Drupal\ooe\Block\IBlockView 
   *   Lazily creates a demo block view.
   */
  protected function blockViewDemo() {
    if (empty($this->blockViewDemo)) {
      $this->blockViewDemo = new DemoBlockView(
              $this->block_demo(),
              $this->getModuleDisplayName() . ': Demo block'
      );
    }
    return $this->blockViewDemo;
  }