Initial Drupal 11 with DDEV setup
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321
web/core/modules/views_ui/admin.inc
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321
web/core/modules/views_ui/admin.inc
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<?php
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/**
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* @file
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*/
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use Drupal\Component\Utility\NestedArray;
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use Drupal\Core\Form\FormStateInterface;
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use Drupal\Core\Url;
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/**
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* Converts a form element in the add view wizard to be AJAX-enabled.
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*
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* This function takes a form element and adds AJAX behaviors to it such that
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* changing it triggers another part of the form to update automatically. It
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* also adds a submit button to the form that appears next to the triggering
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* element and that duplicates its functionality for users who do not have
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* JavaScript enabled (the button is automatically hidden for users who do have
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* JavaScript).
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*
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* To use this function, call it directly from your form builder function
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* immediately after you have defined the form element that will serve as the
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* JavaScript trigger. Calling it elsewhere (such as in hook_form_alter()) may
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* mean that the non-JavaScript fallback button does not appear in the correct
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* place in the form.
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*
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* @param array $wrapping_element
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* The element whose child will server as the AJAX trigger. For example, if
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* $form['some_wrapper']['triggering_element'] represents the element which
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* will trigger the AJAX behavior, you would pass $form['some_wrapper'] for
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* this parameter.
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* @param string $trigger_key
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* The key within the wrapping element that identifies which of its children
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* serves as the AJAX trigger. In the above example, you would pass
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* 'triggering_element' for this parameter.
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* @param array $refresh_parents
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* An array of parent keys that point to the part of the form that will be
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* refreshed by AJAX. For example, if triggering the AJAX behavior should
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* cause $form['dynamic_content']['section'] to be refreshed, you would pass
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* ['dynamic_content', 'section'] for this parameter.
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*/
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function views_ui_add_ajax_trigger(&$wrapping_element, $trigger_key, $refresh_parents): void {
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$seen_ids = &drupal_static(__FUNCTION__ . ':seen_ids', []);
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$seen_buttons = &drupal_static(__FUNCTION__ . ':seen_buttons', []);
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// Add the AJAX behavior to the triggering element.
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$triggering_element = &$wrapping_element[$trigger_key];
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$triggering_element['#ajax']['callback'] = 'views_ui_ajax_update_form';
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// We do not use \Drupal\Component\Utility\Html::getUniqueId() to get an ID
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// for the AJAX wrapper, because it remembers IDs across AJAX requests (and
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// won't reuse them), but in our case we need to use the same ID from request
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// to request so that the wrapper can be recognized by the AJAX system and
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// its content can be dynamically updated. So instead, we will keep track of
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// duplicate IDs (within a single request) on our own, later in this function.
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$triggering_element['#ajax']['wrapper'] = 'edit-view-' . implode('-', $refresh_parents) . '-wrapper';
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// Add a submit button for users who do not have JavaScript enabled. It
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// should be displayed next to the triggering element on the form.
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$button_key = $trigger_key . '_trigger_update';
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$element_info = \Drupal::service('element_info');
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$wrapping_element[$button_key] = [
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'#type' => 'submit',
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// Hide this button when JavaScript is enabled.
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'#attributes' => ['class' => ['js-hide']],
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'#submit' => ['views_ui_nojs_submit'],
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// Add a process function to limit this button's validation errors to the
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// triggering element only. We have to do this in #process since until the
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// form API has added the #parents property to the triggering element for
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// us, we don't have any (easy) way to find out where its submitted values
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// will eventually appear in $form_state->getValues().
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'#process' => array_merge(['views_ui_add_limited_validation'], $element_info->getInfoProperty('submit', '#process', [])),
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// Add an after-build function that inserts a wrapper around the region of
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// the form that needs to be refreshed by AJAX (so that the AJAX system can
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// detect and dynamically update it). This is done in #after_build because
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// it's a convenient place where we have automatic access to the complete
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// form array, but also to minimize the chance that the HTML we add will
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// get clobbered by code that runs after we have added it.
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'#after_build' => array_merge($element_info->getInfoProperty('submit', '#after_build', []), ['views_ui_add_ajax_wrapper']),
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];
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// Copy #weight and #access from the triggering element to the button, so
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// that the two elements will be displayed together.
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foreach (['#weight', '#access'] as $property) {
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if (isset($triggering_element[$property])) {
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$wrapping_element[$button_key][$property] = $triggering_element[$property];
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}
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}
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// For easiest integration with the form API and the testing framework, we
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// always give the button a unique #value, rather than playing around with
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// #name. We also cast the #title to string as we will use it as an array
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// key and it may be a TranslatableMarkup.
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$button_title = !empty($triggering_element['#title']) ? (string) $triggering_element['#title'] : $trigger_key;
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if (empty($seen_buttons[$button_title])) {
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$wrapping_element[$button_key]['#value'] = t('Update "@title" choice', [
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'@title' => $button_title,
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]);
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$seen_buttons[$button_title] = 1;
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}
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else {
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$wrapping_element[$button_key]['#value'] = t('Update "@title" choice (@number)', [
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'@title' => $button_title,
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'@number' => ++$seen_buttons[$button_title],
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]);
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}
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// Attach custom data to the triggering element and submit button, so we can
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// use it in both the process function and AJAX callback.
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$ajax_data = [
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'wrapper' => $triggering_element['#ajax']['wrapper'],
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'trigger_key' => $trigger_key,
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'refresh_parents' => $refresh_parents,
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];
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$seen_ids[$triggering_element['#ajax']['wrapper']] = TRUE;
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$triggering_element['#views_ui_ajax_data'] = $ajax_data;
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$wrapping_element[$button_key]['#views_ui_ajax_data'] = $ajax_data;
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}
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/**
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* Limits validation errors for a non-JavaScript fallback submit button.
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*/
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function views_ui_add_limited_validation($element, FormStateInterface $form_state) {
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// Retrieve the AJAX triggering element so we can determine its parents. (We
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// know it's at the same level of the complete form array as the submit
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// button, so all we have to do to find it is swap out the submit button's
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// last array parent.)
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$array_parents = $element['#array_parents'];
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array_pop($array_parents);
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$array_parents[] = $element['#views_ui_ajax_data']['trigger_key'];
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$ajax_triggering_element = NestedArray::getValue($form_state->getCompleteForm(), $array_parents);
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// Limit this button's validation to the AJAX triggering element, so it can
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// update the form for that change without requiring that the rest of the
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// form be filled out properly yet.
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$element['#limit_validation_errors'] = [$ajax_triggering_element['#parents']];
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// If we are in the process of a form submission and this is the button that
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// was clicked, the form API workflow in \Drupal::formBuilder()->doBuildForm()
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// will have already copied it to $form_state->getTriggeringElement() before
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// our #process function is run. So we need to make the same modifications in
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// $form_state as we did to the element itself, to ensure that
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// #limit_validation_errors will actually be set in the correct place.
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$clicked_button = &$form_state->getTriggeringElement();
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if ($clicked_button && $clicked_button['#name'] == $element['#name'] && $clicked_button['#value'] == $element['#value']) {
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$clicked_button['#limit_validation_errors'] = $element['#limit_validation_errors'];
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}
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return $element;
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}
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/**
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* Adds a wrapper to a form region (for AJAX refreshes) after the build.
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*
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* This function inserts a wrapper around the region of the form that needs to
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* be refreshed by AJAX, based on information stored in the corresponding
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* submit button form element.
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*/
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function views_ui_add_ajax_wrapper($element, FormStateInterface $form_state) {
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// Find the region of the complete form that needs to be refreshed by AJAX.
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// This was earlier stored in a property on the element.
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$complete_form = &$form_state->getCompleteForm();
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$refresh_parents = $element['#views_ui_ajax_data']['refresh_parents'];
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$refresh_element = NestedArray::getValue($complete_form, $refresh_parents);
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// The HTML ID that AJAX expects was also stored in a property on the
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// element, so use that information to insert the wrapper <div> here.
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$id = $element['#views_ui_ajax_data']['wrapper'];
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$refresh_element += [
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'#prefix' => '',
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'#suffix' => '',
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];
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$refresh_element['#prefix'] = '<div id="' . $id . '" class="views-ui-ajax-wrapper">' . $refresh_element['#prefix'];
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$refresh_element['#suffix'] .= '</div>';
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// Copy the element that needs to be refreshed back into the form, with our
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// modifications to it.
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NestedArray::setValue($complete_form, $refresh_parents, $refresh_element);
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return $element;
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}
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/**
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* Updates a part of the add view form via AJAX.
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*
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* @return array
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* The part of the form that has changed.
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*/
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function views_ui_ajax_update_form($form, FormStateInterface $form_state) {
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// The region that needs to be updated was stored in a property of the
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// triggering element by views_ui_add_ajax_trigger(), so all we have to do is
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// retrieve that here.
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return NestedArray::getValue($form, $form_state->getTriggeringElement()['#views_ui_ajax_data']['refresh_parents']);
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}
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/**
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* Non-JavaScript fallback for updating the add view form.
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*/
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function views_ui_nojs_submit($form, FormStateInterface $form_state): void {
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$form_state->setRebuild();
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}
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/**
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* Adds an element to select either the default display or the current display.
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*/
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function views_ui_standard_display_dropdown(&$form, FormStateInterface $form_state, $section): void {
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$view = $form_state->get('view');
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$display_id = $form_state->get('display_id');
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$executable = $view->getExecutable();
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$displays = $executable->displayHandlers;
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$current_display = $executable->display_handler;
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// @todo Move this to a separate function if it's needed on any forms that
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// don't have the display dropdown.
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$form['override'] = [
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'#prefix' => '<div class="views-override clearfix form--inline views-offset-top" data-drupal-views-offset="top">',
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'#suffix' => '</div>',
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'#weight' => -1000,
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'#tree' => TRUE,
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];
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// Add the "2 of 3" progress indicator.
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if ($form_progress = $view->getFormProgress()) {
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$arguments = $form['#title']->getArguments() + ['@current' => $form_progress['current'], '@total' => $form_progress['total']];
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$form['#title'] = t('Configure @type @current of @total: @item', $arguments);
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}
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// The dropdown should not be added when :
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// - this is the default display.
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// - there is no default shown and just one additional display (mostly page)
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// and the current display is defaulted.
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if ($current_display->isDefaultDisplay() || ($current_display->isDefaulted($section) && !\Drupal::config('views.settings')->get('ui.show.default_display') && count($displays) <= 2)) {
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return;
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}
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// Determine whether any other displays have overrides for this section.
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$section_overrides = FALSE;
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$section_defaulted = $current_display->isDefaulted($section);
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foreach ($displays as $id => $display) {
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if ($id === 'default' || $id === $display_id) {
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continue;
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}
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if ($display && !$display->isDefaulted($section)) {
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$section_overrides = TRUE;
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}
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}
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$display_dropdown['default'] = ($section_overrides ? t('All displays (except overridden)') : t('All displays'));
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$display_dropdown[$display_id] = t('This @display_type (override)', ['@display_type' => $current_display->getPluginId()]);
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// Only display the revert option if we are in an overridden section.
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if (!$section_defaulted) {
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$display_dropdown['default_revert'] = t('Revert to default');
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}
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$form['override']['dropdown'] = [
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'#type' => 'select',
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// @todo Translators may need more context than this.
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'#title' => t('For'),
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'#options' => $display_dropdown,
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];
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if ($current_display->isDefaulted($section)) {
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$form['override']['dropdown']['#default_value'] = 'defaults';
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}
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else {
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$form['override']['dropdown']['#default_value'] = $display_id;
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}
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}
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/**
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* Creates the menu path for a standard AJAX form given the form state.
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*
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* @return \Drupal\Core\Url
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* The URL object pointing to the form URL.
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*/
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function views_ui_build_form_url(FormStateInterface $form_state) {
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$ajax = !$form_state->get('ajax') ? 'nojs' : 'ajax';
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$name = $form_state->get('view')->id();
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$form_key = $form_state->get('form_key');
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$display_id = $form_state->get('display_id');
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$form_key = str_replace('-', '_', $form_key);
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$route_name = "views_ui.form_{$form_key}";
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$route_parameters = [
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'js' => $ajax,
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'view' => $name,
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'display_id' => $display_id,
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];
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$url = Url::fromRoute($route_name, $route_parameters);
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if ($type = $form_state->get('type')) {
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$url->setRouteParameter('type', $type);
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}
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if ($id = $form_state->get('id')) {
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$url->setRouteParameter('id', $id);
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}
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return $url;
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}
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/**
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* The #process callback for a button.
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*
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* Determines if a button is the form's triggering element.
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*
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* The Form API has logic to determine the form's triggering element based on
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* the data in POST. However, it only checks buttons based on a single #value
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* per button. This function may be added to a button's #process callbacks to
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* extend button click detection to support multiple #values per button. If the
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* data in POST matches any value in the button's #values array, then the
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* button is detected as having been clicked. This can be used when the value
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* (label) of the same logical button may be different based on context (e.g.,
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* "Apply" vs. "Apply and continue").
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*
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* @see _form_builder_handle_input_element()
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* @see _form_button_was_clicked()
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*/
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function views_ui_form_button_was_clicked($element, FormStateInterface $form_state) {
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$user_input = $form_state->getUserInput();
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$process_input = empty($element['#disabled']) && ($form_state->isProgrammed() || ($form_state->isProcessingInput() && (!isset($element['#access']) || $element['#access'])));
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if ($process_input && !$form_state->getTriggeringElement() && !empty($element['#is_button']) && isset($user_input[$element['#name']]) && isset($element['#values']) && in_array($user_input[$element['#name']], array_map('strval', $element['#values']), TRUE)) {
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$form_state->setTriggeringElement($element);
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}
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return $element;
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}
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