Block.php in Views (for Drupal 7) 8.3
Definition of Drupal\views\Plugin\views\display\Block. Definition of Views\block\Plugin\views\display\Block.
Namespace
Views\block\Plugin\views\displayFile
lib/Views/block/Plugin/views/display/Block.phpView source
<?php
/**
* @file
* Definition of Drupal\views\Plugin\views\display\Block.
* Definition of Views\block\Plugin\views\display\Block.
*/
namespace Views\block\Plugin\views\display;
use Drupal\Core\Annotation\Plugin;
use Drupal\Core\Annotation\Translation;
use Drupal\views\Plugin\views\display\DisplayPluginBase;
/**
* The plugin that handles a block.
*
* @ingroup views_display_plugins
*
* @Plugin(
* id = "block",
* module = "block",
* title = @Translation("Block"),
* help = @Translation("Display the view as a block."),
* theme = "views_view",
* uses_hook_block = TRUE,
* contextual_links_locations = {"block"},
* admin = @Translation("Block")
* )
*/
class Block extends DisplayPluginBase {
/**
* Whether the display allows attachments.
*
* @var bool
*/
protected $usesAttachments = TRUE;
protected function defineOptions() {
$options = parent::defineOptions();
$options['block_description'] = array(
'default' => '',
'translatable' => TRUE,
);
$options['block_caching'] = array(
'default' => DRUPAL_NO_CACHE,
);
return $options;
}
/**
* The default block handler doesn't support configurable items,
* but extended block handlers might be able to do interesting
* stuff with it.
*/
public function executeHookBlockList($delta = 0, $edit = array()) {
$delta = $this->view->storage->name . '-' . $this->display['id'];
$desc = $this
->getOption('block_description');
if (empty($desc)) {
if ($this->display['display_title'] == $this->definition['title']) {
$desc = t('View: !view', array(
'!view' => $this->view->storage
->getHumanName(),
));
}
else {
$desc = t('View: !view: !display', array(
'!view' => $this->view->storage
->getHumanName(),
'!display' => $this->display['display_title'],
));
}
}
return array(
$delta => array(
'info' => $desc,
'cache' => $this
->getCacheType(),
),
);
}
/**
* The display block handler returns the structure necessary for a block.
*/
public function execute() {
// Prior to this being called, the $view should already be set to this
// display, and arguments should be set on the view.
$info['content'] = $this->view
->render();
$info['subject'] = filter_xss_admin($this->view
->getTitle());
if (!empty($this->view->result) || $this
->getOption('empty') || !empty($this->view->style_plugin->definition['even empty'])) {
return $info;
}
}
/**
* Provide the summary for page options in the views UI.
*
* This output is returned as an array.
*/
public function optionsSummary(&$categories, &$options) {
// It is very important to call the parent function here:
parent::optionsSummary($categories, $options);
$categories['block'] = array(
'title' => t('Block settings'),
'column' => 'second',
'build' => array(
'#weight' => -10,
),
);
$block_description = strip_tags($this
->getOption('block_description'));
if (empty($block_description)) {
$block_description = t('None');
}
$options['block_description'] = array(
'category' => 'block',
'title' => t('Block name'),
'value' => views_ui_truncate($block_description, 24),
);
$types = $this
->blockCachingModes();
$options['block_caching'] = array(
'category' => 'other',
'title' => t('Block caching'),
'value' => $types[$this
->getCacheType()],
);
}
/**
* Provide a list of core's block caching modes.
*/
protected function blockCachingModes() {
return array(
DRUPAL_NO_CACHE => t('Do not cache'),
DRUPAL_CACHE_GLOBAL => t('Cache once for everything (global)'),
DRUPAL_CACHE_PER_PAGE => t('Per page'),
DRUPAL_CACHE_PER_ROLE => t('Per role'),
DRUPAL_CACHE_PER_ROLE | DRUPAL_CACHE_PER_PAGE => t('Per role per page'),
DRUPAL_CACHE_PER_USER => t('Per user'),
DRUPAL_CACHE_PER_USER | DRUPAL_CACHE_PER_PAGE => t('Per user per page'),
);
}
/**
* Provide a single method to figure caching type, keeping a sensible default
* for when it's unset.
*/
protected function getCacheType() {
$cache_type = $this
->getOption('block_caching');
if (empty($cache_type)) {
$cache_type = DRUPAL_NO_CACHE;
}
return $cache_type;
}
/**
* Provide the default form for setting options.
*/
public function buildOptionsForm(&$form, &$form_state) {
// It is very important to call the parent function here:
parent::buildOptionsForm($form, $form_state);
switch ($form_state['section']) {
case 'block_description':
$form['#title'] .= t('Block admin description');
$form['block_description'] = array(
'#type' => 'textfield',
'#description' => t('This will appear as the name of this block in administer >> structure >> blocks.'),
'#default_value' => $this
->getOption('block_description'),
);
break;
case 'block_caching':
$form['#title'] .= t('Block caching type');
$form['block_caching'] = array(
'#type' => 'radios',
'#description' => t("This sets the default status for Drupal's built-in block caching method; this requires that caching be turned on in block administration, and be careful because you have little control over when this cache is flushed."),
'#options' => $this
->blockCachingModes(),
'#default_value' => $this
->getCacheType(),
);
break;
case 'exposed_form_options':
$this->view
->initHandlers();
if (!$this
->usesExposed() && parent::usesExposed()) {
$form['exposed_form_options']['warning'] = array(
'#weight' => -10,
'#markup' => '<div class="messages warning">' . t('Exposed filters in block displays require "Use AJAX" to be set to work correctly.') . '</div>',
);
}
}
}
/**
* Perform any necessary changes to the form values prior to storage.
* There is no need for this function to actually store the data.
*/
public function submitOptionsForm(&$form, &$form_state) {
// It is very important to call the parent function here:
parent::submitOptionsForm($form, $form_state);
switch ($form_state['section']) {
case 'display_id':
$this
->updateBlockBid($form_state['view']->storage->name, $this->display['id'], $this->display['new_id']);
break;
case 'block_description':
$this
->setOption('block_description', $form_state['values']['block_description']);
break;
case 'block_caching':
$this
->setOption('block_caching', $form_state['values']['block_caching']);
$this
->saveBlockCache($form_state['view']->storage->name . '-' . $form_state['display_id'], $form_state['values']['block_caching']);
break;
}
}
/**
* Block views use exposed widgets only if AJAX is set.
*/
public function usesExposed() {
if ($this
->isAJAXEnabled()) {
return parent::usesExposed();
}
return FALSE;
}
/**
* Update the block delta when you change the machine readable name of the display.
*/
protected function updateBlockBid($name, $old_delta, $delta) {
$old_hashes = $hashes = variable_get('views_block_hashes', array());
$old_delta = $name . '-' . $old_delta;
$delta = $name . '-' . $delta;
if (strlen($old_delta) >= 32) {
$old_delta = md5($old_delta);
unset($hashes[$old_delta]);
}
if (strlen($delta) >= 32) {
$md5_delta = md5($delta);
$hashes[$md5_delta] = $delta;
$delta = $md5_delta;
}
// Maybe people don't have block module installed, so let's skip this.
if (db_table_exists('block')) {
db_update('block')
->fields(array(
'delta' => $delta,
))
->condition('delta', $old_delta)
->execute();
}
// Update the hashes if needed.
if ($hashes != $old_hashes) {
variable_set('views_block_hashes', $hashes);
}
}
/**
* Save the block cache setting in the blocks table if this block allready
* exists in the blocks table. Dirty fix untill http://drupal.org/node/235673 gets in.
*/
protected function saveBlockCache($delta, $cache_setting) {
if (strlen($delta) >= 32) {
$delta = md5($delta);
}
if (db_table_exists('block') && ($bid = db_query("SELECT bid FROM {block} WHERE module = 'views' AND delta = :delta", array(
':delta' => $delta,
))
->fetchField())) {
db_update('block')
->fields(array(
'cache' => $cache_setting,
))
->condition('module', 'views')
->condition('delta', $delta)
->execute();
}
}
}