PagererPresetEditForm.php in Pagerer 8.2

Namespace

Drupal\pagerer\Form

File

src/Form/PagererPresetEditForm.php

<?php

namespace Drupal\pagerer\Form;

use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\HtmlCommand;
use Drupal\Core\Ajax\ReplaceCommand;
use Drupal\Core\Form\FormStateInterface;

/**
 * Base form handler for Pagerer Presets.
 */
class PagererPresetEditForm extends PagererPresetFormBase {

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $form = parent::form($form, $form_state);

    // Fake pager for preview.
    $this->pagerManager
      ->createPager(47884, 50);

    // Add admin UI library.
    $form['#attached']['library'][] = 'pagerer/admin.ui';

    // Deal with AJAX call.
    if ($form_state
      ->getValues()) {

      // Set style selection per pane.
      foreach ([
        'left',
        'center',
        'right',
      ] as $pane) {
        $this->entity
          ->setPaneData($pane, 'style', $form_state
          ->getUserInput()['panes_container'][$pane]['style']);
      }
    }
    $form['#title'] = $this
      ->t("Edit pager %preset_label", [
      '%preset_label' => $this->entity
        ->label(),
    ]);

    // AJAX messages.
    $form['ajax_messages'] = [
      '#type' => 'container',
      '#attributes' => [
        'id' => 'pagerer-ajax-messages',
      ],
    ];

    // List of the styles available for the panes.
    $options = [
      'none' => $this
        ->t('- None -'),
    ] + $this->styleManager
      ->getPluginOptions('base');

    // Panes configuration.
    $form['panes_container'] = [
      '#type' => 'fieldset',
      '#title' => $this
        ->t("Panes configuration"),
      '#description' => $this
        ->t("Click 'Configure' to change style settings. Click 'Reset' to reset a pane configuration to its style's default."),
      '#tree' => TRUE,
    ];
    foreach ([
      'left',
      'center',
      'right',
    ] as $pane) {
      switch ($pane) {
        case 'left':
          $title = $this
            ->t("Left pane");
          break;
        case 'center':
          $title = $this
            ->t("Center pane");
          break;
        case 'right':
          $title = $this
            ->t("Right pane");
          break;
      }
      $form['panes_container'][$pane] = [
        '#type' => 'fieldset',
        '#title' => $title,
        '#attributes' => [
          'class' => [
            'pagerer-panes-container-pane',
          ],
        ],
        'style' => [
          '#type' => 'select',
          '#title' => $this
            ->t("Style"),
          '#options' => $options,
          '#default_value' => $this->entity
            ->getPaneData($pane, 'style'),
          '#ajax' => [
            'callback' => '::processStyleChange',
          ],
        ],
        'actions' => [
          '#type' => 'actions',
          'configure' => [
            '#type' => 'submit',
            '#name' => 'config_' . $pane,
            '#value' => $this
              ->t("Configure"),
            '#submit' => [
              '::submitForm',
              '::save',
            ],
          ],
          'reset' => [
            '#type' => 'submit',
            '#name' => 'reset_' . $pane,
            '#value' => $this
              ->t("Reset"),
            '#submit' => [
              '::submitForm',
              '::save',
            ],
          ],
        ],
      ];
    }

    // Pagerer's preview.
    $form['preview'] = [
      '#type' => 'fieldset',
      '#title' => $this
        ->t("Pager preview"),
      '#id' => 'pagerer-pager-preview',
    ];
    $form['preview']['pagerer'] = [
      '#type' => 'pager',
      '#theme' => 'pagerer',
      '#config' => [
        'panes' => [
          'left' => $this->entity
            ->getPaneData('left'),
          'center' => $this->entity
            ->getPaneData('center'),
          'right' => $this->entity
            ->getPaneData('right'),
        ],
      ],
    ];
    return $form;
  }

  /**
   * Refreshes the form after a change of a style.
   */
  public function processStyleChange($form, FormStateInterface $form_state) {
    $this->messenger
      ->addMessage($this
      ->t('Click on the <em>Save</em> button to confirm the selection.'), 'warning');
    $response = new AjaxResponse();
    $status_messages = [
      '#type' => 'status_messages',
    ];
    $response
      ->addCommand(new HtmlCommand('#pagerer-ajax-messages', $status_messages));
    $response
      ->addCommand(new ReplaceCommand('#pagerer-pager-preview', $form['preview']));
    return $response;
  }

  /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {

    // Check 'Config' was invoked without selecting a style.
    if (strpos($form_state
      ->getTriggeringElement()['#name'], 'config', 0) === 0) {
      $e = explode('_', $form_state
        ->getTriggeringElement()['#name']);
      $pane = $e[1];
      if ($form_state
        ->getValue([
        'panes_container',
        $pane,
        'style',
      ]) == 'none') {
        $form_state
          ->setErrorByName('panes_container][' . $pane . '][style', $this
          ->t("Select a style before clicking 'Configure'."));
      }
    }

    // Check 'Reset' was invoked without selecting a style.
    if (strpos($form_state
      ->getTriggeringElement()['#name'], 'reset', 0) === 0) {
      $e = explode('_', $form_state
        ->getTriggeringElement()['#name']);
      $pane = $e[1];
      if ($form_state
        ->getValue([
        'panes_container',
        $pane,
        'style',
      ]) == 'none') {
        $form_state
          ->setErrorByName('panes_container][' . $pane . '][style', $this
          ->t("Select a style before clicking 'Reset'."));
      }
    }
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

    // Set data.
    foreach ([
      'left',
      'center',
      'right',
    ] as $pane) {
      $this->entity
        ->setPaneData($pane, 'style', $form_state
        ->getValue([
        'panes_container',
        $pane,
        'style',
      ]));
    }
    parent::submitForm($form, $form_state);
    $form_state
      ->setRedirect('entity.pagerer_preset.collection');
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    parent::save($form, $form_state);
    $trigger = $form_state
      ->getTriggeringElement()['#name'];
    if (strpos($trigger, 'config', 0) === 0) {
      $e = explode('_', $trigger);
      $pane = $e[1];
      $form_state
        ->setRedirect('entity.pagerer_preset.pane_edit_form', [
        'pagerer_preset' => $this->entity
          ->id(),
        'pane' => $pane,
      ]);
    }
    elseif (strpos($trigger, 'reset', 0) === 0) {
      $e = explode('_', $trigger);
      $pane = $e[1];
      $form_state
        ->setRedirect('entity.pagerer_preset.pane_reset_form', [
        'pagerer_preset' => $this->entity
          ->id(),
        'pane' => $pane,
      ]);
    }
    else {
      $this->messenger
        ->addMessage($this
        ->t('Changes to the pager %label have been saved.', [
        '%label' => $this->entity
          ->label(),
      ]));
    }
  }

}

Classes

Name	Description
PagererPresetEditForm	Base form handler for Pagerer Presets.