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vendor/yiisoft/yii2/widgets/Block.php 1.72 KB
abf1649b   andryeyev   Чистая установка ...
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  <?php
  /**
   * @link http://www.yiiframework.com/
   * @copyright Copyright (c) 2008 Yii Software LLC
   * @license http://www.yiiframework.com/license/
   */
  
  namespace yii\widgets;
  
  use yii\base\Widget;
  
  /**
   * Block records all output between [[begin()]] and [[end()]] calls and stores it in [[\yii\base\View::$blocks]].
   * for later use.
   *
   * [[\yii\base\View]] component contains two methods [[\yii\base\View::beginBlock()]] and [[\yii\base\View::endBlock()]].
   * The general idea is that you're defining block default in a view or layout:
   *
   * ```php
   * <?php $this->beginBlock('messages', true) ?>
   * Nothing.
   * <?php $this->endBlock() ?>
   * ```
   *
   * And then overriding default in sub-views:
   *
   * ```php
   * <?php $this->beginBlock('username') ?>
   * Umm... hello?
   * <?php $this->endBlock() ?>
   * ```
   *
   * Second parameter defines if block content should be outputted which is desired when rendering its content but isn't
   * desired when redefining it in subviews.
   *
   * @author Qiang Xue <qiang.xue@gmail.com>
   * @since 2.0
   */
  class Block extends Widget
  {
      /**
       * @var boolean whether to render the block content in place. Defaults to false,
       * meaning the captured block content will not be displayed.
       */
      public $renderInPlace = false;
  
  
      /**
       * Starts recording a block.
       */
      public function init()
      {
          ob_start();
          ob_implicit_flush(false);
      }
  
      /**
       * Ends recording a block.
       * This method stops output buffering and saves the rendering result as a named block in the view.
       */
      public function run()
      {
          $block = ob_get_clean();
          if ($this->renderInPlace) {
              echo $block;
          }
          $this->view->blocks[$this->getId()] = $block;
      }
  }