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* Definition of Drupal\views\Plugin\views\area\AreaPluginBase.
namespace Drupal\views\Plugin\views\area;
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use Drupal\views\ViewExecutable;
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use Drupal\views\Plugin\views\PluginBase;
use Drupal\views\Plugin\views\HandlerBase;
/**
* @defgroup views_area_handlers Views area handlers
* @{
* Handlers to tell Views what can display in header, footer
* and empty text in a view.
*/
/**
* Base class for area handlers.
*
* @ingroup views_area_handlers
*/
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abstract class AreaPluginBase extends HandlerBase {
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/**
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* Overrides Drupal\views\Plugin\views\HandlerBase::init().
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*
* Make sure that no result area handlers are set to be shown when the result
* is empty.
*/
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public function init(ViewExecutable $view, &$options) {
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$this->setOptionDefaults($this->options, $this->defineOptions());
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parent::init($view, $options);
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if (isset($this->handler_type) && ($this->handler_type == 'empty')) {
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$this->options['empty'] = TRUE;
}
}
* Get this area's label.
public function label() {
return $this->adminLabel();
protected function defineOptions() {
$options = parent::defineOptions();
$this->definition['field'] = !empty($this->definition['field']) ? $this->definition['field'] : '';
$label = !empty($this->definition['label']) ? $this->definition['label'] : $this->definition['field'];
$options['label'] = array('default' => $label, 'translatable' => TRUE);
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$options['empty'] = array('default' => FALSE, 'bool' => TRUE);
return $options;
}
/**
* Provide extra data to the administration form
*/
public function adminSummary() {
return $this->label();
}
/**
* Default options form that provides the label widget that all fields
* should have.
*/
public function buildOptionsForm(&$form, &$form_state) {
parent::buildOptionsForm($form, $form_state);
$form['label'] = array(
'#type' => 'textfield',
'#title' => t('Label'),
'#default_value' => isset($this->options['label']) ? $this->options['label'] : '',
'#description' => t('The label for this area that will be displayed only administratively.'),
);
if ($form_state['type'] != 'empty') {
$form['empty'] = array(
'#type' => 'checkbox',
'#title' => t('Display even if view has no result'),
'#default_value' => isset($this->options['empty']) ? $this->options['empty'] : 0,
);
}
}
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/**
* Form helper function to add tokenization form elements.
*/
public function tokenForm(&$form, &$form_state) {
$form['tokenize'] = array(
'#type' => 'checkbox',
'#title' => t('Use replacement tokens from the first row'),
'#default_value' => $this->options['tokenize'],
);
// Get a list of the available fields and arguments for token replacement.
$options = array();
foreach ($this->view->display_handler->getHandlers('field') as $field => $handler) {
$options[t('Fields')]["[$field]"] = $handler->adminLabel();
}
$count = 0; // This lets us prepare the key as we want it printed.
foreach ($this->view->display_handler->getHandlers('argument') as $arg => $handler) {
$options[t('Arguments')]['%' . ++$count] = t('@argument title', array('@argument' => $handler->adminLabel()));
$options[t('Arguments')]['!' . $count] = t('@argument input', array('@argument' => $handler->adminLabel()));
}
if (!empty($options)) {
$form['tokens'] = array(
'#type' => 'details',
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'#title' => t('Replacement patterns'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
'#id' => 'edit-options-token-help',
'#states' => array(
'visible' => array(
':input[name="options[tokenize]"]' => array('checked' => TRUE),
),
),
);
$form['tokens']['help'] = array(
'#markup' => '<p>' . t('The following tokens are available. If you would like to have the characters \'[\' and \']\' please use the html entity codes \'%5B\' or \'%5D\' or they will get replaced with empty space.') . '</p>',
);
foreach (array_keys($options) as $type) {
if (!empty($options[$type])) {
$items = array();
foreach ($options[$type] as $key => $value) {
$items[] = $key . ' == ' . $value;
}
$form['tokens']['tokens'] = array(
'#theme' => 'item_list',
'#items' => $items,
);
}
}
}
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$this->globalTokenForm($form, $form_state);
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}
public function query() { }
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/**
* Performs any operations needed before full rendering.
*
* @param array $results
* The results of the view.
*/
public function preRender(array $results) {
}
/**
* Render the area
*/
function render($empty = FALSE) {
return '';
}
/**
* Area handlers shouldn't have groupby.
*/
public function usesGroupBy() {