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<?php |
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/** |
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* @package Polylang |
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*/ |
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|
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use WP_Syntex\Polylang\Capabilities\Capabilities; |
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|
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/** |
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* Manages filters and actions related to media on admin side |
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* Capability to edit / create media is checked before loading this class |
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* |
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* @since 1.2 |
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*/ |
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class PLL_Admin_Filters_Media extends PLL_Admin_Filters_Post_Base { |
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/** |
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* @var PLL_CRUD_Posts|null |
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*/ |
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public $posts; |
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|
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/** |
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* Constructor: setups filters and actions |
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* |
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* @since 1.2 |
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* |
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* @param object $polylang The Polylang object. |
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*/ |
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public function __construct( &$polylang ) { |
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parent::__construct( $polylang ); |
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|
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$this->posts = &$polylang->posts; |
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|
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// Adds the language field and translations tables in the 'Edit Media' panel. |
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add_filter( 'attachment_fields_to_edit', array( $this, 'attachment_fields_to_edit' ), 10, 2 ); |
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|
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// Adds actions related to languages when creating, saving or deleting media. |
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add_filter( 'attachment_fields_to_save', array( $this, 'save_media' ), 10, 2 ); |
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|
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// Maybe creates a media translation. |
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add_action( 'admin_init', array( $this, 'translate_media' ) ); |
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} |
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|
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/** |
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* Adds the language field and translations tables in the 'Edit Media' panel. |
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* Needs WP 3.5+ |
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* |
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* @since 0.9 |
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* |
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* @param array $fields List of form fields. |
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* @param WP_Post $post The attachment being edited. |
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* @return array Modified list of form fields. |
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*/ |
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public function attachment_fields_to_edit( $fields, $post ) { |
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if ( 'post.php' === $GLOBALS['pagenow'] ) { |
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return $fields; // Don't add anything on edit media panel since we have the metabox. |
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} |
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|
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$post_id = $post->ID; |
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$lang = $this->model->post->get_language( $post_id ); |
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$user = Capabilities::get_user(); |
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$languages = $this->model->languages->filter( 'translator' )->get_list(); |
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|
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if ( empty( $lang ) ) { |
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// The media has no language: prepend an empty option to prevent displaying a wrong information. |
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array_unshift( $languages, (object) array( 'slug' => '', 'name' => '' ) ); |
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} elseif ( ! $user->can_translate( $lang ) ) { |
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// The user cannot translate this language, so it isn't in `$languages` (the dropdown will be disabled). |
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if ( ! in_array( $lang, $languages, true ) ) { |
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array_unshift( $languages, $lang ); |
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} |
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} |
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|
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// Disable the dropdown if: |
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// - the media has no language and the user is a translator, |
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// - or the media has a language but the user is not allowed to translate it. |
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$disabled = empty( $lang ) ? $user->is_translator() : ! $user->can_translate( $lang ); |
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|
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$dropdown = new PLL_Walker_Dropdown(); |
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$fields['language'] = array( |
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'label' => __( 'Language', 'polylang' ), |
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'input' => 'html', |
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'html' => $dropdown->walk( |
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$languages, |
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-1, |
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array( |
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'name' => sprintf( 'attachments[%d][language]', $post_id ), |
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'class' => 'media_lang_choice', |
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'selected' => $lang ? $lang->slug : '', |
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'disabled' => $disabled, |
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) |
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), |
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); |
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|
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return $fields; |
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} |
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|
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/** |
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* Maybe creates a media translation. |
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* |
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* @since 0.9 |
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* |
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* @return void |
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*/ |
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public function translate_media() { |
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$data = $this->links->get_data_from_new_media_translation_request(); |
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if ( empty( $data ) ) { |
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return; |
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} |
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|
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$post_id = $data['from_post']->ID; |
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|
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// Bails if the translations already exists. |
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if ( $this->model->post->get_translation( $post_id, $data['new_lang'] ) ) { |
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wp_safe_redirect( wp_get_referer() ); |
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exit; |
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} |
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|
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$tr_id = $this->model->post->create_media_translation( $post_id, $data['new_lang'] ); |
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wp_safe_redirect( admin_url( sprintf( 'post.php?post=%d&action=edit', $tr_id ) ) ); // WP 3.5+. |
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exit; |
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} |
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|
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/** |
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* Called when a media is saved |
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* Saves language and translations |
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* |
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* @since 0.9 |
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* |
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* @param array $post An array of post data. |
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* @param array $attachment An array of attachment metadata. |
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* @return array Unmodified $post |
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*/ |
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public function save_media( $post, $attachment ) { |
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// Language is filled in attachment by the function applying the filter 'attachment_fields_to_save' |
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// All security checks have been done by functions applying this filter |
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if ( empty( $attachment['language'] ) || ! current_user_can( 'edit_post', $post['ID'] ) ) { |
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return $post; |
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} |
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|
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$language = $this->model->get_language( $attachment['language'] ); |
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|
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if ( empty( $language ) ) { |
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return $post; |
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} |
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|
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Capabilities::get_user()->can_translate_or_die( $language ); |
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|
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$this->model->post->set_language( $post['ID'], $language ); |
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|
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return $post; |
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} |
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} |
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