<?php

/**

 * MS Themes List Table class.

 *

 * @package WordPress

 * @subpackage List_Table

 * @since 3.1.0

 * @access private

 */

class WP_MS_Themes_List_Table extends WP_List_Table {

	var $site_id;

	var $is_site_themes;

	function __construct() {

		global $status, $page;

		$status = isset( $_REQUEST['theme_status'] ) ? $_REQUEST['theme_status'] : 'all';

		if ( !in_array( $status, array( 'all', 'enabled', 'disabled', 'upgrade', 'search', 'broken' ) ) )

			$status = 'all';

		$page = $this->get_pagenum();

		$screen = get_current_screen();

		$this->is_site_themes = ( 'site-themes-network' == $screen->id ) ? true : false;

		if ( $this->is_site_themes )

			$this->site_id = isset( $_REQUEST['id'] ) ? intval( $_REQUEST['id'] ) : 0;

		parent::__construct( array(

			'plural' => 'themes'

		) );

	}

	function get_table_classes() {

		return array( 'widefat', 'plugins' );	// todo: remove and add CSS for .themes

	}

	function ajax_user_can() {

		$menu_perms = get_site_option( 'menu_items', array() );

		if ( empty( $menu_perms['themes'] ) && ! is_super_admin() )

			return false;

		if ( $this->is_site_themes && !current_user_can('manage_sites') )

			return false;

		elseif ( !$this->is_site_themes && !current_user_can('manage_network_themes') )

			return false;

		return true;

	}

	function prepare_items() {

		global $status, $totals, $page, $orderby, $order, $s;

		wp_reset_vars( array( 'orderby', 'order', 's' ) );

		$themes = array(

			'all' => apply_filters( 'all_themes', wp_get_themes() ),

			'search' => array(),

			'enabled' => array(),

			'disabled' => array(),

			'upgrade' => array(),

			'broken' => $this->is_site_themes ? array() : wp_get_themes( array( 'errors' => true ) ),

		);

		if ( $this->is_site_themes ) {

			$themes_per_page = $this->get_items_per_page( 'site_themes_network_per_page' );

			$allowed_where = 'site';

		} else {

			$themes_per_page = $this->get_items_per_page( 'themes_network_per_page' );

			$allowed_where = 'network';

		}

		$maybe_update = current_user_can( 'update_themes' ) && ! $this->is_site_themes && $current = get_site_transient( 'update_themes' );

		foreach ( (array) $themes['all'] as $key => $theme ) {

			if ( $this->is_site_themes && $theme->is_allowed( 'network' ) ) {

				unset( $themes['all'][ $key ] );

				continue;

			}

			if ( $maybe_update && isset( $current->response[ $key ] ) ) {

				$themes['all'][ $key ]->update = true;

				$themes['upgrade'][ $key ] = $themes['all'][ $key ];

			}

			$filter = $theme->is_allowed( $allowed_where, $this->site_id ) ? 'enabled' : 'disabled';

			$themes[ $filter ][ $key ] = $themes['all'][ $key ];

		}

		if ( $s ) {

			$status = 'search';

			$themes['search'] = array_filter( array_merge( $themes['all'], $themes['broken'] ), array( &$this, '_search_callback' ) );

		}

		$totals = array();

		foreach ( $themes as $type => $list )

			$totals[ $type ] = count( $list );

		if ( empty( $themes[ $status ] ) && !in_array( $status, array( 'all', 'search' ) ) )

			$status = 'all';

		$this->items = $themes[ $status ];

		WP_Theme::sort_by_name( $this->items );

		$this->has_items = ! empty( $themes['all'] );

		$total_this_page = $totals[ $status ];

		if ( $orderby ) {

			$orderby = ucfirst( $orderby );

			$order = strtoupper( $order );

			if ( $orderby == 'Name' ) {

				if ( 'ASC' == $order )

					$this->items = array_reverse( $this->items );

			} else {

				uasort( $this->items, array( &$this, '_order_callback' ) );

			}

		}

		$start = ( $page - 1 ) * $themes_per_page;

		if ( $total_this_page > $themes_per_page )

			$this->items = array_slice( $this->items, $start, $themes_per_page, true );

		$this->set_pagination_args( array(

			'total_items' => $total_this_page,

			'per_page' => $themes_per_page,

		) );

	}

	function _search_callback( $theme ) {

		static $term;

		if ( is_null( $term ) )

			$term = stripslashes( $_REQUEST['s'] );

		foreach ( array( 'Name', 'Description', 'Author', 'Author', 'AuthorURI' ) as $field ) {

			// Don't mark up; Do translate.

			if ( false !== stripos( $theme->display( $field, false, true ), $term ) )

				return true;

		}

		if ( false !== stripos( $theme->get_stylesheet(), $term ) )

			return true;

		if ( false !== stripos( $theme->get_template(), $term ) )

			return true;

		return false;

	}

	// Not used by any core columns.

	function _order_callback( $theme_a, $theme_b ) {

		global $orderby, $order;

		$a = $theme_a[ $orderby ];

		$b = $theme_b[ $orderby ];

		if ( $a == $b )

			return 0;

		if ( 'DESC' == $order )

			return ( $a < $b ) ? 1 : -1;

		else

			return ( $a < $b ) ? -1 : 1;

	}

	function no_items() {

		if ( ! $this->has_items )

			_e( 'No themes found.' );

		else

			_e( 'You do not appear to have any themes available at this time.' );

	}

	function get_columns() {

		global $status;

		return array(

			'cb'          => '<input type="checkbox" />',

			'name'        => __( 'Theme' ),

			'description' => __( 'Description' ),

		);

	}

	function get_sortable_columns() {

		return array(

			'name'         => 'name',

		);

	}

	function get_views() {

		global $totals, $status;

		$status_links = array();

		foreach ( $totals as $type => $count ) {

			if ( !$count )

				continue;

			switch ( $type ) {

				case 'all':

					$text = _nx( 'All <span class="count">(%s)</span>', 'All <span class="count">(%s)</span>', $count, 'themes' );

					break;

				case 'enabled':

					$text = _n( 'Enabled <span class="count">(%s)</span>', 'Enabled <span class="count">(%s)</span>', $count );

					break;

				case 'disabled':

					$text = _n( 'Disabled <span class="count">(%s)</span>', 'Disabled <span class="count">(%s)</span>', $count );

					break;

				case 'upgrade':

					$text = _n( 'Update Available <span class="count">(%s)</span>', 'Update Available <span class="count">(%s)</span>', $count );

					break;

				case 'broken' :

					$text = _n( 'Broken <span class="count">(%s)</span>', 'Broken <span class="count">(%s)</span>', $count );

					break;

			}

			if ( $this->is_site_themes )

				$url = 'site-themes.php?id=' . $this->site_id;

			else

				$url = 'themes.php';

			if ( 'search' != $type ) {

				$status_links[$type] = sprintf( "<a href='%s' %s>%s</a>",

					esc_url( add_query_arg('theme_status', $type, $url) ),

					( $type == $status ) ? ' class="current"' : '',

					sprintf( $text, number_format_i18n( $count ) )

				);

			}

		}

		return $status_links;

	}

	function get_bulk_actions() {

		global $status;

		$actions = array();

		if ( 'enabled' != $status )

			$actions['enable-selected'] = $this->is_site_themes ? __( 'Enable' ) : __( 'Network Enable' );

		if ( 'disabled' != $status )

			$actions['disable-selected'] = $this->is_site_themes ? __( 'Disable' ) : __( 'Network Disable' );

		if ( ! $this->is_site_themes ) {

			if ( current_user_can( 'delete_themes' ) )

				$actions['delete-selected'] = __( 'Delete' );

			if ( current_user_can( 'update_themes' ) )

				$actions['update-selected'] = __( 'Update' );

		}

		return $actions;

	}

	function bulk_actions( $which ) {

		global $status;

		parent::bulk_actions( $which );

	}

	function current_action() {

		return parent::current_action();

	}

	function display_rows() {

		foreach ( $this->items as $key => $theme )

			$this->single_row( $key, $theme );

	}

	function single_row( $key, $theme ) {

		global $status, $page, $s, $totals;

		$context = $status;

		if ( $this->is_site_themes ) {

			$url = "site-themes.php?id={$this->site_id}&";

			$allowed = $theme->is_allowed( 'site', $this->site_id );

		} else {

			$url = 'themes.php?';

			$allowed = $theme->is_allowed( 'network' );

		}

		// preorder

		$actions = array(

			'enable' => '',

			'disable' => '',

			'edit' => '',

			'delete' => ''

		);

		$theme_key = $theme->get_stylesheet();

		if ( ! $allowed ) {

			if ( ! $theme->errors() )

				$actions['enable'] = '<a href="' . esc_url( wp_nonce_url($url . 'action=enable&amp;theme=' . $theme_key . '&amp;paged=' . $page . '&amp;s=' . $s, 'enable-theme_' . $theme_key) ) . '" title="' . esc_attr__('Enable this theme') . '" class="edit">' . ( $this->is_site_themes ? __( 'Enable' ) : __( 'Network Enable' ) ) . '</a>';

		} else {

			$actions['disable'] = '<a href="' . esc_url( wp_nonce_url($url . 'action=disable&amp;theme=' . $theme_key . '&amp;paged=' . $page . '&amp;s=' . $s, 'disable-theme_' . $theme_key) ) . '" title="' . esc_attr__('Disable this theme') . '">' . ( $this->is_site_themes ? __( 'Disable' ) : __( 'Network Disable' ) ) . '</a>';

		}

		if ( current_user_can('edit_themes') )

			$actions['edit'] = '<a href="' . esc_url('theme-editor.php?theme=' . urlencode( $theme_key ) ) . '" title="' . esc_attr__('Open this theme in the Theme Editor') . '" class="edit">' . __('Edit') . '</a>';

		if ( ! $allowed && current_user_can( 'delete_themes' ) && ! $this->is_site_themes && $theme_key != get_option( 'stylesheet' ) && $theme_key != get_option( 'template' ) )

			$actions['delete'] = '<a href="' . esc_url( wp_nonce_url( 'themes.php?action=delete-selected&amp;checked[]=' . $theme_key . '&amp;theme_status=' . $context . '&amp;paged=' . $page . '&amp;s=' . $s, 'bulk-themes' ) ) . '" title="' . esc_attr__( 'Delete this theme' ) . '" class="delete">' . __( 'Delete' ) . '</a>';

		$actions = apply_filters( 'theme_action_links', array_filter( $actions ), $theme_key, $theme, $context );

		$actions = apply_filters( "theme_action_links_$theme_key", $actions, $theme_key, $theme, $context );

		$class = ! $allowed ? 'inactive' : 'active';

		$checkbox_id = "checkbox_" . md5( $theme->get('Name') );

		$checkbox = "<input type='checkbox' name='checked[]' value='" . esc_attr( $theme_key ) . "' id='" . $checkbox_id . "' /><label class='screen-reader-text' for='" . $checkbox_id . "' >" . __('Select') . " " . $theme->display('Name') . "</label>";

		$id = sanitize_html_class( $theme->get_stylesheet() );

		if ( ! empty( $totals['upgrade'] ) && ! empty( $theme->update ) )

			$class .= ' update';

		echo "<tr id='$id' class='$class'>";

		list( $columns, $hidden ) = $this->get_column_info();

		foreach ( $columns as $column_name => $column_display_name ) {

			$style = '';

			if ( in_array( $column_name, $hidden ) )

				$style = ' style="display:none;"';

			switch ( $column_name ) {

				case 'cb':

					echo "<th scope='row' class='check-column'>$checkbox</th>";

					break;

				case 'name':

					echo "<td class='theme-title'$style><strong>" . $theme->display('Name') . "</strong>";

					echo $this->row_actions( $actions, true );

					echo "</td>";

					break;

				case 'description':

					echo "<td class='column-description desc'$style>";

					if ( $theme->errors() ) {

						$pre = $status == 'broken' ? '' : __( 'Broken Theme:' ) . ' ';

						echo '<p><strong class="attention">' . $pre . $theme->errors()->get_error_message() . '</strong></p>';

					}

					echo "<div class='theme-description'><p>" . $theme->display( 'Description' ) . "</p></div>

						<div class='$class second theme-version-author-uri'>";

					$theme_meta = array();

					if ( $theme->get('Version') )

						$theme_meta[] = sprintf( __( 'Version %s' ), $theme->display('Version') );

					$theme_meta[] = sprintf( __( 'By %s' ), $theme->display('Author') );

					if ( $theme->get('ThemeURI') )

						$theme_meta[] = '<a href="' . $theme->display('ThemeURI') . '" title="' . esc_attr__( 'Visit theme homepage' ) . '">' . __( 'Visit Theme Site' ) . '</a>';

					$theme_meta = apply_filters( 'theme_row_meta', $theme_meta, $theme_key, $theme, $status );

					echo implode( ' | ', $theme_meta );

					echo "</div></td>";

					break;

				default:

					echo "<td class='$column_name column-$column_name'$style>";

					do_action( 'manage_themes_custom_column', $column_name, $theme_key, $theme );

					echo "</td>";

			}

		}

		echo "</tr>";

		if ( $this->is_site_themes )

			remove_action( "after_theme_row_$theme_key", 'wp_theme_update_row' );

		do_action( 'after_theme_row', $theme_key, $theme, $status );

		do_action( "after_theme_row_$theme_key", $theme_key, $theme, $status );

	}

}