MetaBox.php

<?php

namespace lloc\Msls\ContentImport;

use lloc\Msls\ContentImport\Importers\ImportersFactory;
use lloc\Msls\ContentImport\Importers\Map;
use lloc\Msls\MslsBlogCollection;
use lloc\Msls\MslsFields;
use lloc\Msls\MslsOptionsPost;
use lloc\Msls\MslsPlugin;
use lloc\Msls\MslsRegistryInstance;
use lloc\Msls\MslsRequest;

class MetaBox extends MslsRegistryInstance {
	protected $data = array();

	/**
	 * Renders the content import metabox.
	 */
	public function render() {
		$post            = get_post();
		$mydata          = new MslsOptionsPost( $post->ID );
		$languages       = MslsOptionsPost::instance()->get_available_languages();
		$current         = MslsBlogCollection::get_blog_language( get_current_blog_id() );
		$languages       = array_diff_key( $languages, array( $current => $current ) );
		$input_lang      = MslsRequest::get( MslsFields::FIELD_MSLS_LANG, null );
		$input_id        = MslsRequest::get( MslsFields::FIELD_MSLS_ID, null );
		$has_input       = null !== $input_lang && null !== $input_id;
		$blogs           = msls_blog_collection();
		$available       = array_filter(
			array_map(
				function ( $lang ) use ( $mydata ) {
					return $mydata->{$lang};
				},
				array_keys( $languages )
			)
		);
		$has_translation = count( $available ) >= 1;

		if ( $has_input || $has_translation ) {
			add_thickbox();

			/* translators: %s: language name */
			$label_template = __( 'Import content from %s', 'multisite-language-switcher' );
			$output         = '<fieldset>';
			$output        .= '<legend>'
								. esc_html__(
									'Warning! This will override and replace all the post content with the content from the source post!',
									'multisite-language-switcher'
								)
								. '</legend>';
			foreach ( $languages as $language => $label ) {
				$id    = $mydata->{$language};
				$blog  = $blogs->get_blog_id( $language );
				$label = sprintf( $label_template, $label );
				if ( null === $id && $has_input && $input_lang === $language ) {
					$id   = $input_id;
					$blog = $blogs->get_blog_id( $language );
				}
				if ( null !== $id ) {
					$this->data = array(
						'msls_import' => "{$blog}|{$id}",
					);
					$output    .= sprintf(
						'<a class="button button-primary thickbox" href="%s" title="%s">%s</a>',
						$this->inline_thickbox_url( $this->data ),
						$label,
						$label
					);
				}
			}
			$output .= '</fieldset>';
		} else {
			$output = '<p>' .
						esc_html__(
							'No translated versions linked to this post: import content functionality is disabled.',
							'multisite-language-switcher'
						)
						. '</p>';
		}

		echo $output;
	}

	protected function inline_thickbox_url( array $data = array() ) {
		$args = array_merge(
			array(
				'modal'    => true,
				'width'    => 770, // meh, just a guess on *most* devices
				'height'   => 770,
				'inlineId' => 'msls-import-dialog-' . str_replace( '|', '-', $data['msls_import'] ),
			),
			$data
		);

		return esc_url(
			'#TB_inline' . add_query_arg( $args, '' )
		);
	}

	public function print_modal_html() {
		echo $this->inline_thickbox_html( true, $this->data );
	}

	protected function inline_thickbox_html( $echo = true, array $data = array() ) {
		if ( ! isset( $data['msls_import'] ) ) {
			return '';
		}

		$slug = str_replace( '|', '-', $data['msls_import'] );

		ob_start();
		?>
		<div style="display: none;" id="msls-import-dialog-
		<?php
		echo esc_attr( $slug )
		?>
		">
			<h3>
			<?php
				esc_html_e( 'Select what should be imported and how', 'multisite-language-switcher' )
			?>
			</h3>

			<form action="
			<?php
			echo add_query_arg( array() )
			?>
			" method="post">

				<?php
				wp_nonce_field( MslsPlugin::path(), 'msls_noncename' );
				?>

				<?php
				foreach ( $data as $key => $value ) :
					?>
					<input type="hidden" name="
					<?php
					echo esc_attr( $key )
					?>
					" value="
					<?php
					echo esc_attr( $value )
					?>
					">
					<?php
				endforeach;
				?>

				<?php
				/** @var ImportersFactory $factory */
				foreach ( Map::instance()->factories() as $slug => $factory ) :
					?>
					<?php
					$details = $factory->details()
					?>
					<h4>
					<?php
						echo esc_html( $details->name )
					?>
					</h4>
					<?php
					if ( empty( $details->importers ) ) :
						?>
						<p>
						<?php
							esc_html_e(
								'No importers available for this type of content.',
								'multisite-language-switcher'
							)
						?>
								</p>
						<?php
					else :
						?>
						<ul>
							<li>
								<label>
									<input type="radio" name="msls_importers[
									<?php
									echo esc_attr( $details->slug )
									?>
									]">
									<?php
									esc_html_e(
										'Off - Do not import this type of content in the destination post.',
										'multisite-language-switcher'
									)
									?>
								</label>
							</li>
							<?php
							foreach ( $details->importers as $importer_slug => $importer_info ) :
								?>
								<li>
									<label>
										<input type="radio" name="msls_importers[
										<?php
										echo esc_attr( $details->slug )
										?>
										]"
												value="
												<?php
												echo esc_attr( $importer_slug )
												?>
												"
											<?php
											checked( $details->selected, $importer_slug )
											?>
										>
										<?php
										echo( esc_html(
											sprintf(
												'%s -  %s',
												$importer_info->name,
												$importer_info->description
											)
										) )
										?>
									</label>
								</li>
								<?php
							endforeach;
							?>
						</ul>
						<?php
					endif;
					?>
					<?php
				endforeach;
				?>

				<div>
					<input
							type="submit"
							class="button button-primary"
							value="
							<?php
							esc_html_e( 'Import Content', 'multisite-language-switcher' )
							?>
							"
					>
				</div>
			</form>
		</div>

		<?php
		$html = ob_get_clean();

		if ( $echo ) {
			echo $html;
		}

		return $html;
	}
}