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<?php
namespace Drupal\diff\Form;
use Drupal\Component\Utility\Xss;
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Language\LanguageManagerInterface;
use Drupal\Core\Link;
use Drupal\diff\DiffEntityComparison;
use Drupal\diff\DiffLayoutManager;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Datetime\DateFormatter;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\Core\Render\RendererInterface;
class RevisionOverviewForm extends FormBase {
protected $entityTypeManager;
protected $currentUser;
protected $date;
protected $renderer;
protected $languageManager;
protected $config;
protected $diffLayoutManager;
protected $entityComparison;
public function __construct(EntityTypeManagerInterface $entity_type_manager, AccountInterface $current_user, DateFormatter $date, RendererInterface $renderer, LanguageManagerInterface $language_manager, DiffLayoutManager $diff_layout_manager, DiffEntityComparison $entity_comparison) {
$this->entityTypeManager = $entity_type_manager;
$this->currentUser = $current_user;
$this->date = $date;
$this->renderer = $renderer;
$this->languageManager = $language_manager;
$this->config = $this
->config('diff.settings');
$this->diffLayoutManager = $diff_layout_manager;
$this->entityComparison = $entity_comparison;
}
public static function create(ContainerInterface $container) {
return new static($container
->get('entity_type.manager'), $container
->get('current_user'), $container
->get('date.formatter'), $container
->get('renderer'), $container
->get('language_manager'), $container
->get('plugin.manager.diff.layout'), $container
->get('diff.entity_comparison'));
}
public function getFormId() {
return 'revision_overview_form';
}
public function buildForm(array $form, FormStateInterface $form_state, $node = NULL) {
$account = $this->currentUser;
$langcode = $node
->language()
->getId();
$langname = $node
->language()
->getName();
$languages = $node
->getTranslationLanguages();
$has_translations = count($languages) > 1;
$node_storage = $this->entityTypeManager
->getStorage('node');
$type = $node
->getType();
$pagerLimit = $this->config
->get('general_settings.revision_pager_limit');
$query = $this->entityTypeManager
->getStorage('node')
->getQuery()
->condition($node
->getEntityType()
->getKey('id'), $node
->id())
->pager($pagerLimit)
->allRevisions()
->sort($node
->getEntityType()
->getKey('revision'), 'DESC')
->accessCheck(FALSE)
->execute();
$vids = array_keys($query);
$revision_count = count($vids);
$build['#title'] = $has_translations ? $this
->t('@langname revisions for %title', [
'@langname' => $langname,
'%title' => $node
->label(),
]) : $this
->t('Revisions for %title', [
'%title' => $node
->label(),
]);
$build['nid'] = array(
'#type' => 'hidden',
'#value' => $node
->id(),
);
$table_header = [];
$table_header['revision'] = $this
->t('Revision');
if ($revision_count > 1) {
$table_header += array(
'select_column_one' => '',
'select_column_two' => '',
);
}
$table_header['operations'] = $this
->t('Operations');
$rev_revert_perm = $account
->hasPermission("revert {$type} revisions") || $account
->hasPermission('revert all revisions') || $account
->hasPermission('administer nodes');
$rev_delete_perm = $account
->hasPermission("delete {$type} revisions") || $account
->hasPermission('delete all revisions') || $account
->hasPermission('administer nodes');
$revert_permission = $rev_revert_perm && $node
->access('update');
$delete_permission = $rev_delete_perm && $node
->access('delete');
$build['node_revisions_table'] = array(
'#type' => 'table',
'#header' => $table_header,
'#attributes' => array(
'class' => array(
'diff-revisions',
),
),
);
$build['node_revisions_table']['#attached']['library'][] = 'diff/diff.general';
$build['node_revisions_table']['#attached']['drupalSettings']['diffRevisionRadios'] = $this->config
->get('general_settings.radio_behavior');
$default_revision = $node
->getRevisionId();
foreach ($vids as $key => $vid) {
$previous_revision = NULL;
if (isset($vids[$key + 1])) {
$previous_revision = $node_storage
->loadRevision($vids[$key + 1]);
}
if ($revision = $node_storage
->loadRevision($vid)) {
if ($revision
->hasTranslation($langcode) && $revision
->getTranslation($langcode)
->isRevisionTranslationAffected()) {
$username = array(
'#theme' => 'username',
'#account' => $revision
->getRevisionUser(),
);
$revision_date = $this->date
->format($revision
->getRevisionCreationTime(), 'short');
if ($vid != $node
->getRevisionId()) {
$link = Link::fromTextAndUrl($revision_date, new Url('entity.node.revision', [
'node' => $node
->id(),
'node_revision' => $vid,
]));
}
else {
$link = $node
->toLink($revision_date);
}
if ($vid == $default_revision) {
$row = [
'revision' => $this
->buildRevision($link, $username, $revision, $previous_revision),
];
if ($revision_count > 1) {
$row += [
'select_column_one' => $this
->buildSelectColumn('radios_left', $vid, FALSE),
'select_column_two' => $this
->buildSelectColumn('radios_right', $vid, $vid),
];
}
$row['operations'] = array(
'#prefix' => '<em>',
'#markup' => $this
->t('Current revision'),
'#suffix' => '</em>',
'#attributes' => array(
'class' => array(
'revision-current',
),
),
);
$row['#attributes'] = [
'class' => [
'revision-current',
],
];
}
else {
$route_params = array(
'node' => $node
->id(),
'node_revision' => $vid,
'langcode' => $langcode,
);
$links = array();
if ($revert_permission) {
$links['revert'] = [
'title' => $vid < $node
->getRevisionId() ? $this
->t('Revert') : $this
->t('Set as current revision'),
'url' => $has_translations ? Url::fromRoute('node.revision_revert_translation_confirm', [
'node' => $node
->id(),
'node_revision' => $vid,
'langcode' => $langcode,
]) : Url::fromRoute('node.revision_revert_confirm', [
'node' => $node
->id(),
'node_revision' => $vid,
]),
];
}
if ($delete_permission) {
$links['delete'] = array(
'title' => $this
->t('Delete'),
'url' => Url::fromRoute('node.revision_delete_confirm', $route_params),
);
}
$row = [
'revision' => $this
->buildRevision($link, $username, $revision, $previous_revision),
'select_column_one' => $this
->buildSelectColumn('radios_left', $vid, isset($vids[1]) ? $vids[1] : FALSE),
'select_column_two' => $this
->buildSelectColumn('radios_right', $vid, FALSE),
'operations' => [
'#type' => 'operations',
'#links' => $links,
],
];
}
$build['node_revisions_table'][] = $row;
}
}
}
if ($revision_count > 1) {
$build['submit'] = array(
'#type' => 'submit',
'#button_type' => 'primary',
'#value' => t('Compare selected revisions'),
'#attributes' => array(
'class' => array(
'diff-button',
),
),
);
}
$build['pager'] = array(
'#type' => 'pager',
);
$build['#attached']['library'][] = 'node/drupal.node.admin';
return $build;
}
protected function buildSelectColumn($name, $return_val, $default_val) {
return [
'#type' => 'radio',
'#title_display' => 'invisible',
'#name' => $name,
'#return_value' => $return_val,
'#default_value' => $default_val,
];
}
protected function buildRevision(Link $link, $username, ContentEntityInterface $revision, ContentEntityInterface $previous_revision = NULL) {
return [
'#type' => 'inline_template',
'#template' => '{% trans %}{{ date }} by {{ username }}{% endtrans %}{% if message %}<p class="revision-log">{{ message }}</p>{% endif %}',
'#context' => [
'date' => $link
->toString(),
'username' => $this->renderer
->renderPlain($username),
'message' => [
'#markup' => $this->entityComparison
->getRevisionDescription($revision, $previous_revision),
'#allowed_tags' => Xss::getAdminTagList(),
],
],
];
}
public function validateForm(array &$form, FormStateInterface $form_state) {
$input = $form_state
->getUserInput();
if (count($form_state
->getValue('node_revisions_table')) <= 1) {
$form_state
->setErrorByName('node_revisions_table', $this
->t('Multiple revisions are needed for comparison.'));
}
elseif (!isset($input['radios_left']) || !isset($input['radios_right'])) {
$form_state
->setErrorByName('node_revisions_table', $this
->t('Select two revisions to compare.'));
}
elseif ($input['radios_left'] == $input['radios_right']) {
$form_state
->setErrorByName('node_revisions_table', $this
->t('Select different revisions to compare.'));
}
}
public function submitForm(array &$form, FormStateInterface $form_state) {
$input = $form_state
->getUserInput();
$vid_left = $input['radios_left'];
$vid_right = $input['radios_right'];
$nid = $input['nid'];
if ($vid_left > $vid_right) {
$aux = $vid_left;
$vid_left = $vid_right;
$vid_right = $aux;
}
$redirect_url = Url::fromRoute('diff.revisions_diff', array(
'node' => $nid,
'left_revision' => $vid_left,
'right_revision' => $vid_right,
'filter' => $this->diffLayoutManager
->getDefaultLayout(),
));
$form_state
->setRedirectUrl($redirect_url);
}
}