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root / drupal7 / sites / all / modules / views / plugins / views_plugin_display_attachment.inc @ 5d12d676

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<?php
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/**
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 * @file
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 * Definition of views_plugin_display_attachment.
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 */
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/**
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 * The plugin that handles an attachment display.
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 *
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 * Attachment displays are secondary displays that are 'attached' to a primary
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 * display. Effectively they are a simple way to get multiple views within
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 * the same view. They can share some information.
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 *
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 * @ingroup views_display_plugins
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 */
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class views_plugin_display_attachment extends views_plugin_display {
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  /**
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   * {@inheritdoc}
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   */
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  public function option_definition () {
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    $options = parent::option_definition();
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    $options['displays'] = array('default' => array());
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    $options['attachment_position'] = array('default' => 'before');
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    $options['inherit_arguments'] = array('default' => TRUE, 'bool' => TRUE);
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    $options['inherit_exposed_filters'] = array('default' => FALSE, 'bool' => TRUE);
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    $options['inherit_pager'] = array('default' => FALSE, 'bool' => TRUE);
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    $options['render_pager'] = array('default' => FALSE, 'bool' => TRUE);
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    return $options;
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  }
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  /**
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   * {@inheritdoc}
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   */
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  public function execute() {
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    return $this->view->render($this->display->id);
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  }
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  /**
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   * {@inheritdoc}
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   */
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  public function attachment_positions($position = NULL) {
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    $positions = array(
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      'before' => t('Before'),
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      'after' => t('After'),
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      'both' => t('Both'),
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    );
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    if ($position) {
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      return $positions[$position];
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    }
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    return $positions;
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  }
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  /**
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   * Provide the summary for attachment options in the views UI.
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   *
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   * This output is returned as an array.
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   */
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  public function options_summary(&$categories, &$options) {
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    // It is very important to call the parent function here.
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    parent::options_summary($categories, $options);
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    $categories['attachment'] = array(
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      'title' => t('Attachment settings'),
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      'column' => 'second',
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      'build' => array(
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        '#weight' => -10,
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      ),
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    );
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    $displays = array_filter($this->get_option('displays'));
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    if (count($displays) > 1) {
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      $attach_to = t('Multiple displays');
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    }
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    elseif (count($displays) == 1) {
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      $display = array_shift($displays);
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      if (!empty($this->view->display[$display])) {
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        $attach_to = check_plain($this->view->display[$display]->display_title);
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      }
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    }
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    if (!isset($attach_to)) {
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      $attach_to = t('Not defined');
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    }
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    $options['displays'] = array(
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      'category' => 'attachment',
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      'title' => t('Attach to'),
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      'value' => $attach_to,
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    );
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    $options['attachment_position'] = array(
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      'category' => 'attachment',
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      'title' => t('Attachment position'),
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      'value' => $this->attachment_positions($this->get_option('attachment_position')),
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    );
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    $options['inherit_arguments'] = array(
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      'category' => 'attachment',
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      'title' => t('Inherit contextual filters'),
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      'value' => $this->get_option('inherit_arguments') ? t('Yes') : t('No'),
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    );
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    $options['inherit_exposed_filters'] = array(
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      'category' => 'attachment',
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      'title' => t('Inherit exposed filters'),
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      'value' => $this->get_option('inherit_exposed_filters') ? t('Yes') : t('No'),
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    );
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    $options['inherit_pager'] = array(
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      'category' => 'pager',
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      'title' => t('Inherit pager'),
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      'value' => $this->get_option('inherit_pager') ? t('Yes') : t('No'),
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    );
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    $options['render_pager'] = array(
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      'category' => 'pager',
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      'title' => t('Render pager'),
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      'value' => $this->get_option('render_pager') ? t('Yes') : t('No'),
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    );
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  }
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  /**
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   * Provide the default form for setting options.
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   */
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  public function options_form(&$form, &$form_state) {
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    // It is very important to call the parent function here.
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    parent::options_form($form, $form_state);
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    switch ($form_state['section']) {
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      case 'inherit_arguments':
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        $form['#title'] .= t('Inherit contextual filters');
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        $form['inherit_arguments'] = array(
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          '#type' => 'checkbox',
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          '#title' => t('Inherit'),
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          '#description' => t('Should this display inherit its contextual filter values from the parent display to which it is attached?'),
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          '#default_value' => $this->get_option('inherit_arguments'),
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        );
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        break;
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      case 'inherit_exposed_filters':
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        $form['#title'] .= t('Inherit exposed filters');
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        $form['inherit_exposed_filters'] = array(
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          '#type' => 'checkbox',
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          '#title' => t('Inherit'),
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          '#description' => t('Should this display inherit its exposed filter values from the parent display to which it is attached?'),
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          '#default_value' => $this->get_option('inherit_exposed_filters'),
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        );
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        break;
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      case 'inherit_pager':
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        $form['#title'] .= t('Inherit pager');
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        $form['inherit_pager'] = array(
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          '#type' => 'checkbox',
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          '#title' => t('Inherit'),
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          '#description' => t('Should this display inherit its paging values from the parent display to which it is attached?'),
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          '#default_value' => $this->get_option('inherit_pager'),
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        );
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        break;
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      case 'render_pager':
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        $form['#title'] .= t('Render pager');
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        $form['render_pager'] = array(
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          '#type' => 'checkbox',
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          '#title' => t('Render'),
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          '#description' => t('Should this display render the pager values? This is only meaningful if inheriting a pager.'),
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          '#default_value' => $this->get_option('render_pager'),
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        );
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        break;
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      case 'attachment_position':
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        $form['#title'] .= t('Position');
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        $form['attachment_position'] = array(
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          '#type' => 'radios',
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          '#description' => t('Attach before or after the parent display?'),
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          '#options' => $this->attachment_positions(),
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          '#default_value' => $this->get_option('attachment_position'),
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        );
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        break;
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      case 'displays':
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        $form['#title'] .= t('Attach to');
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        $displays = array();
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        foreach ($this->view->display as $display_id => $display) {
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          if (!empty($display->handler) && $display->handler->accept_attachments()) {
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            $displays[$display_id] = $display->display_title;
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          }
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        }
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        $form['displays'] = array(
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          '#type' => 'checkboxes',
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          '#description' => t('Select which display or displays this should attach to.'),
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          '#options' => $displays,
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          '#default_value' => $this->get_option('displays'),
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        );
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        break;
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    }
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  }
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  /**
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   * Perform any necessary changes to the form values prior to storage.
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   * There is no need for this function to actually store the data.
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   */
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  public function options_submit(&$form, &$form_state) {
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    // It is very important to call the parent function here.
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    parent::options_submit($form, $form_state);
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    switch ($form_state['section']) {
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      case 'inherit_arguments':
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      case 'inherit_pager':
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      case 'render_pager':
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      case 'inherit_exposed_filters':
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      case 'attachment_position':
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      case 'displays':
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        $this->set_option($form_state['section'], $form_state['values'][$form_state['section']]);
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        break;
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    }
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  }
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  /**
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   * Attach to another view.
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   */
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  public function attach_to($display_id) {
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    $displays = $this->get_option('displays');
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    if (empty($displays[$display_id])) {
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      return;
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    }
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    if (!$this->access()) {
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      return;
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    }
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    // Get a fresh view because our current one has a lot of stuff on it
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    // because it's already been executed.
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    $view = $this->view->clone_view();
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    $view->original_args = $view->args;
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    $args = $this->get_option('inherit_arguments') ? $this->view->args : array();
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    $view->set_arguments($args);
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    $exposed_input = $this->get_option('inherit_exposed_filters') ? $this->view->exposed_input : array();
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    $view->set_exposed_input($exposed_input);
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    $view->set_display($this->display->id);
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    if ($this->get_option('inherit_pager')) {
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      $view->display_handler->use_pager = $this->view->display[$display_id]->handler->use_pager();
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      $view->display_handler->set_option('pager', $this->view->display[$display_id]->handler->get_option('pager'));
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    }
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    $attachment = $view->execute_display($this->display->id, $args);
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    switch ($this->get_option('attachment_position')) {
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      case 'before':
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        $this->view->attachment_before .= $attachment;
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        break;
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      case 'after':
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        $this->view->attachment_after .= $attachment;
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        break;
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      case 'both':
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        $this->view->attachment_before .= $attachment;
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        $this->view->attachment_after .= $attachment;
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        break;
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    }
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    $view->destroy();
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  }
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  /**
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   * Attachment displays only use exposed widgets if they are set to inherit
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   * the exposed filter settings of their parent display.
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   */
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  public function uses_exposed() {
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    if (!empty($this->options['inherit_exposed_filters']) && parent::uses_exposed()) {
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      return TRUE;
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    }
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    return FALSE;
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  }
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  /**
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   * If an attachment is set to inherit the exposed filter settings from its
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   * parent display, then don't render and display a second set of exposed
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   * filter widgets.
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   */
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  public function displays_exposed() {
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    return $this->options['inherit_exposed_filters'] ? FALSE : TRUE;
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  }
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  /**
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   * {@inheritdoc}
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   */
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  public function use_pager() {
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    return !empty($this->use_pager);
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  }
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  /**
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   * {@inheritdoc}
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   */
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  public function render_pager() {
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    return !empty($this->use_pager) && $this->get_option('render_pager');
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  }
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}