<?php

/**

 * List Table API: WP_Theme_Install_List_Table class

 *

 * @package WordPress

 * @subpackage Administration

 * @since 3.1.0

 */

/**

 * Core class used to implement displaying themes to install in a list table.

 *

 * @since 3.1.0

 * @access private

 *

 * @see WP_Themes_List_Table

 */

class WP_Theme_Install_List_Table extends WP_Themes_List_Table {

	public $features = array();

	/**

	 * @return bool

	 */

	public function ajax_user_can() {

		return current_user_can( 'install_themes' );

	}

	/**

	 * @global array  $tabs

	 * @global string $tab

	 * @global int    $paged

	 * @global string $type

	 * @global array  $theme_field_defaults

	 */

	public function prepare_items() {

		include( ABSPATH . 'wp-admin/includes/theme-install.php' );

		global $tabs, $tab, $paged, $type, $theme_field_defaults;

		wp_reset_vars( array( 'tab' ) );

		$search_terms  = array();

		$search_string = '';

		if ( ! empty( $_REQUEST['s'] ) ) {

			$search_string = strtolower( wp_unslash( $_REQUEST['s'] ) );

			$search_terms  = array_unique( array_filter( array_map( 'trim', explode( ',', $search_string ) ) ) );

		}

		if ( ! empty( $_REQUEST['features'] ) ) {

			$this->features = $_REQUEST['features'];

		}

		$paged = $this->get_pagenum();

		$per_page = 36;

		// These are the tabs which are shown on the page,

		$tabs              = array();

		$tabs['dashboard'] = __( 'Search' );

		if ( 'search' === $tab ) {

			$tabs['search'] = __( 'Search Results' );

		}

		$tabs['upload']   = __( 'Upload' );

		$tabs['featured'] = _x( 'Featured', 'themes' );

		//$tabs['popular']  = _x( 'Popular', 'themes' );

		$tabs['new']     = _x( 'Latest', 'themes' );

		$tabs['updated'] = _x( 'Recently Updated', 'themes' );

		$nonmenu_tabs = array( 'theme-information' ); // Valid actions to perform which do not have a Menu item.

		/** This filter is documented in wp-admin/theme-install.php */

		$tabs = apply_filters( 'install_themes_tabs', $tabs );

		/**

		 * Filters tabs not associated with a menu item on the Install Themes screen.

		 *

		 * @since 2.8.0

		 *

		 * @param string[] $nonmenu_tabs The tabs that don't have a menu item on

		 *                               the Install Themes screen.

		 */

		$nonmenu_tabs = apply_filters( 'install_themes_nonmenu_tabs', $nonmenu_tabs );

		// If a non-valid menu tab has been selected, And it's not a non-menu action.

		if ( empty( $tab ) || ( ! isset( $tabs[ $tab ] ) && ! in_array( $tab, (array) $nonmenu_tabs ) ) ) {

			$tab = key( $tabs );

		}

		$args = array(

			'page'     => $paged,

			'per_page' => $per_page,

			'fields'   => $theme_field_defaults,

		);

		switch ( $tab ) {

			case 'search':

				$type = isset( $_REQUEST['type'] ) ? wp_unslash( $_REQUEST['type'] ) : 'term';

				switch ( $type ) {

					case 'tag':

						$args['tag'] = array_map( 'sanitize_key', $search_terms );

						break;

					case 'term':

						$args['search'] = $search_string;

						break;

					case 'author':

						$args['author'] = $search_string;

						break;

				}

				if ( ! empty( $this->features ) ) {

					$args['tag']      = $this->features;

					$_REQUEST['s']    = implode( ',', $this->features );

					$_REQUEST['type'] = 'tag';

				}

				add_action( 'install_themes_table_header', 'install_theme_search_form', 10, 0 );

				break;

			case 'featured':

				// case 'popular':

			case 'new':

			case 'updated':

				$args['browse'] = $tab;

				break;

			default:

				$args = false;

				break;

		}

		/**

		 * Filters API request arguments for each Install Themes screen tab.

		 *

		 * The dynamic portion of the hook name, `$tab`, refers to the theme install

		 * tabs. Default tabs are 'dashboard', 'search', 'upload', 'featured',

		 * 'new', and 'updated'.

		 *

		 * @since 3.7.0

		 *

		 * @param array $args An array of themes API arguments.

		 */

		$args = apply_filters( "install_themes_table_api_args_{$tab}", $args );

		if ( ! $args ) {

			return;

		}

		$api = themes_api( 'query_themes', $args );

		if ( is_wp_error( $api ) ) {

			wp_die( $api->get_error_message() . '</p> <p><a href="#" onclick="document.location.reload(); return false;">' . __( 'Try again' ) . '</a>' );

		}

		$this->items = $api->themes;

		$this->set_pagination_args(

			array(

				'total_items'     => $api->info['results'],

				'per_page'        => $args['per_page'],

				'infinite_scroll' => true,

			)

		);

	}

	/**

	 */

	public function no_items() {

		_e( 'No themes match your request.' );

	}

	/**

	 * @global array $tabs

	 * @global string $tab

	 * @return array

	 */

	protected function get_views() {

		global $tabs, $tab;

		$display_tabs = array();

		foreach ( (array) $tabs as $action => $text ) {

			$current_link_attributes                    = ( $action === $tab ) ? ' class="current" aria-current="page"' : '';

			$href                                       = self_admin_url( 'theme-install.php?tab=' . $action );

			$display_tabs[ 'theme-install-' . $action ] = "<a href='$href'$current_link_attributes>$text</a>";

		}

		return $display_tabs;

	}

	/**

	 */

	public function display() {

		wp_nonce_field( 'fetch-list-' . get_class( $this ), '_ajax_fetch_list_nonce' );

		?>

		<div class="tablenav top themes">

			<div class="alignleft actions">

				<?php

				/**

				 * Fires in the Install Themes list table header.

				 *

				 * @since 2.8.0

				 */

				do_action( 'install_themes_table_header' );

				?>

			</div>

			<?php $this->pagination( 'top' ); ?>

			<br class="clear" />

		</div>

		<div id="availablethemes">

			<?php $this->display_rows_or_placeholder(); ?>

		</div>

		<?php

		$this->tablenav( 'bottom' );

	}

	/**

	 */

	public function display_rows() {

		$themes = $this->items;

		foreach ( $themes as $theme ) {

			?>

				<div class="available-theme installable-theme">

				<?php

					$this->single_row( $theme );

				?>

				</div>

			<?php

		} // end foreach $theme_names

		$this->theme_installer();

	}

	/**

	 * Prints a theme from the WordPress.org API.

	 *

	 * @since 3.1.0

	 *

	 * @global array $themes_allowedtags

	 *

	 * @param object $theme {

	 *     An object that contains theme data returned by the WordPress.org API.

	 *

	 *     @type string $name           Theme name, e.g. 'Twenty Nineteen'.

	 *     @type string $slug           Theme slug, e.g. 'twentynineteen'.

	 *     @type string $version        Theme version, e.g. '1.1'.

	 *     @type string $author         Theme author username, e.g. 'melchoyce'.

	 *     @type string $preview_url    Preview URL, e.g. 'http://2019.wordpress.net/'.

	 *     @type string $screenshot_url Screenshot URL, e.g. 'https://wordpress.org/themes/twentynineteen/'.

	 *     @type float  $rating         Rating score.

	 *     @type int    $num_ratings    The number of ratings.

	 *     @type string $homepage       Theme homepage, e.g. 'https://wordpress.org/themes/twentynineteen/'.

	 *     @type string $description    Theme description.

	 *     @type string $download_link  Theme ZIP download URL.

	 * }

	 */

	public function single_row( $theme ) {

		global $themes_allowedtags;

		if ( empty( $theme ) ) {

			return;

		}

		$name   = wp_kses( $theme->name, $themes_allowedtags );

		$author = wp_kses( $theme->author, $themes_allowedtags );

		/* translators: %s: theme name */

		$preview_title = sprintf( __( 'Preview “%s”' ), $name );

		$preview_url   = add_query_arg(

			array(

				'tab'   => 'theme-information',

				'theme' => $theme->slug,

			),

			self_admin_url( 'theme-install.php' )

		);

		$actions = array();

		$install_url = add_query_arg(

			array(

				'action' => 'install-theme',

				'theme'  => $theme->slug,

			),

			self_admin_url( 'update.php' )

		);

		$update_url = add_query_arg(

			array(

				'action' => 'upgrade-theme',

				'theme'  => $theme->slug,

			),

			self_admin_url( 'update.php' )

		);

		$status = $this->_get_theme_status( $theme );

		switch ( $status ) {

			case 'update_available':

				$actions[] = sprintf(

					'<a class="install-now" href="%s" title="%s">%s</a>',

					esc_url( wp_nonce_url( $update_url, 'upgrade-theme_' . $theme->slug ) ),

					/* translators: %s: theme version */

					esc_attr( sprintf( __( 'Update to version %s' ), $theme->version ) ),

					__( 'Update' )

				);

				break;

			case 'newer_installed':

			case 'latest_installed':

				$actions[] = sprintf(

					'<span class="install-now" title="%s">%s</span>',

					esc_attr__( 'This theme is already installed and is up to date' ),

					_x( 'Installed', 'theme' )

				);

				break;

			case 'install':

			default:

				$actions[] = sprintf(

					'<a class="install-now" href="%s" title="%s">%s</a>',

					esc_url( wp_nonce_url( $install_url, 'install-theme_' . $theme->slug ) ),

					/* translators: %s: theme name */

					esc_attr( sprintf( __( 'Install %s' ), $name ) ),

					__( 'Install Now' )

				);

				break;

		}

		$actions[] = sprintf(

			'<a class="install-theme-preview" href="%s" title="%s">%s</a>',

			esc_url( $preview_url ),

			/* translators: %s: theme name */

			esc_attr( sprintf( __( 'Preview %s' ), $name ) ),

			__( 'Preview' )

		);

		/**

		 * Filters the install action links for a theme in the Install Themes list table.

		 *

		 * @since 3.4.0

		 *

		 * @param string[] $actions An array of theme action links. Defaults are

		 *                          links to Install Now, Preview, and Details.

		 * @param WP_Theme $theme   Theme object.

		 */

		$actions = apply_filters( 'theme_install_actions', $actions, $theme );

		?>

		<a class="screenshot install-theme-preview" href="<?php echo esc_url( $preview_url ); ?>" title="<?php echo esc_attr( $preview_title ); ?>">

			<img src="<?php echo esc_url( $theme->screenshot_url ); ?>" width="150" alt="" />

		</a>

		<h3><?php echo $name; ?></h3>

		<div class="theme-author">

		<?php

			/* translators: %s: theme author */

			printf( __( 'By %s' ), $author );

		?>

		</div>

		<div class="action-links">

			<ul>

				<?php foreach ( $actions as $action ) : ?>

					<li><?php echo $action; ?></li>

				<?php endforeach; ?>

				<li class="hide-if-no-js"><a href="#" class="theme-detail"><?php _e( 'Details' ); ?></a></li>

			</ul>

		</div>

		<?php

		$this->install_theme_info( $theme );

	}

	/**

	 * Prints the wrapper for the theme installer.

	 */

	public function theme_installer() {

		?>

		<div id="theme-installer" class="wp-full-overlay expanded">

			<div class="wp-full-overlay-sidebar">

				<div class="wp-full-overlay-header">

					<a href="#" class="close-full-overlay button"><?php _e( 'Close' ); ?></a>

					<span class="theme-install"></span>

				</div>

				<div class="wp-full-overlay-sidebar-content">

					<div class="install-theme-info"></div>

				</div>

				<div class="wp-full-overlay-footer">

					<button type="button" class="collapse-sidebar button" aria-expanded="true" aria-label="<?php esc_attr_e( 'Collapse Sidebar' ); ?>">

						<span class="collapse-sidebar-arrow"></span>

						<span class="collapse-sidebar-label"><?php _e( 'Collapse' ); ?></span>

					</button>

				</div>

			</div>

			<div class="wp-full-overlay-main"></div>

		</div>

		<?php

	}

	/**

	 * Prints the wrapper for the theme installer with a provided theme's data.

	 * Used to make the theme installer work for no-js.

	 *

	 * @param object $theme - A WordPress.org Theme API object.

	 */

	public function theme_installer_single( $theme ) {

		?>

		<div id="theme-installer" class="wp-full-overlay single-theme">

			<div class="wp-full-overlay-sidebar">

				<?php $this->install_theme_info( $theme ); ?>

			</div>

			<div class="wp-full-overlay-main">

				<iframe src="<?php echo esc_url( $theme->preview_url ); ?>"></iframe>

			</div>

		</div>

		<?php

	}

	/**

	 * Prints the info for a theme (to be used in the theme installer modal).

	 *