<?php

/**

 * WordPress Dashboard Widget Administration Screen API

 *

 * @package WordPress

 * @subpackage Administration

 */

/**

 * Registers dashboard widgets.

 *

 * Handles POST data, sets up filters.

 *

 * @since 2.5.0

 */

function wp_dashboard_setup() {

	global $wp_registered_widgets, $wp_registered_widget_controls, $wp_dashboard_control_callbacks;

	$wp_dashboard_control_callbacks = array();

	$screen = get_current_screen();

	$update = false;

	$widget_options = get_option( 'dashboard_widget_options' );

	if ( !$widget_options || !is_array($widget_options) )

		$widget_options = array();

	/* Register Widgets and Controls */

	$response = wp_check_browser_version();

	if ( $response && $response['upgrade'] ) {

		add_filter( 'postbox_classes_dashboard_dashboard_browser_nag', 'dashboard_browser_nag_class' );

		if ( $response['insecure'] )

			wp_add_dashboard_widget( 'dashboard_browser_nag', __( 'You are using an insecure browser!' ), 'wp_dashboard_browser_nag' );

		else

			wp_add_dashboard_widget( 'dashboard_browser_nag', __( 'Your browser is out of date!' ), 'wp_dashboard_browser_nag' );

	}

	// Right Now

	if ( is_blog_admin() && current_user_can('edit_posts') )

		wp_add_dashboard_widget( 'dashboard_right_now', __( 'Right Now' ), 'wp_dashboard_right_now' );

	if ( is_network_admin() )

		wp_add_dashboard_widget( 'network_dashboard_right_now', __( 'Right Now' ), 'wp_network_dashboard_right_now' );

	// Recent Comments Widget

	if ( is_blog_admin() && current_user_can('moderate_comments') ) {

		if ( !isset( $widget_options['dashboard_recent_comments'] ) || !isset( $widget_options['dashboard_recent_comments']['items'] ) ) {

			$update = true;

			$widget_options['dashboard_recent_comments'] = array(

				'items' => 5,

			);

		}

		$recent_comments_title = __( 'Recent Comments' );

		wp_add_dashboard_widget( 'dashboard_recent_comments', $recent_comments_title, 'wp_dashboard_recent_comments', 'wp_dashboard_recent_comments_control' );

	}

	// Incoming Links Widget

	if ( is_blog_admin() && current_user_can('publish_posts') ) {

		if ( !isset( $widget_options['dashboard_incoming_links'] ) || !isset( $widget_options['dashboard_incoming_links']['home'] ) || $widget_options['dashboard_incoming_links']['home'] != get_option('home') ) {

			$update = true;

			$num_items = isset($widget_options['dashboard_incoming_links']['items']) ? $widget_options['dashboard_incoming_links']['items'] : 10;

			$widget_options['dashboard_incoming_links'] = array(

				'home' => get_option('home'),

				'link' => apply_filters( 'dashboard_incoming_links_link', 'http://blogsearch.google.com/blogsearch?scoring=d&partner=wordpress&q=link:' . trailingslashit( get_option('home') ) ),

				'url' => isset($widget_options['dashboard_incoming_links']['url']) ? apply_filters( 'dashboard_incoming_links_feed', $widget_options['dashboard_incoming_links']['url'] ) : apply_filters( 'dashboard_incoming_links_feed', 'http://blogsearch.google.com/blogsearch_feeds?scoring=d&ie=utf-8&num=' . $num_items . '&output=rss&partner=wordpress&q=link:' . trailingslashit( get_option('home') ) ),

				'items' => $num_items,

				'show_date' => isset($widget_options['dashboard_incoming_links']['show_date']) ? $widget_options['dashboard_incoming_links']['show_date'] : false

			);

		}

		wp_add_dashboard_widget( 'dashboard_incoming_links', __( 'Incoming Links' ), 'wp_dashboard_incoming_links', 'wp_dashboard_incoming_links_control' );

	}

	// WP Plugins Widget

	if ( ( ! is_multisite() && is_blog_admin() && current_user_can( 'install_plugins' ) ) || ( is_network_admin() && current_user_can( 'manage_network_plugins' ) && current_user_can( 'install_plugins' ) ) )

		wp_add_dashboard_widget( 'dashboard_plugins', __( 'Plugins' ), 'wp_dashboard_plugins' );

	// QuickPress Widget

	if ( is_blog_admin() && current_user_can('edit_posts') )

		wp_add_dashboard_widget( 'dashboard_quick_press', __( 'QuickPress' ), 'wp_dashboard_quick_press' );

	// Recent Drafts

	if ( is_blog_admin() && current_user_can('edit_posts') )

		wp_add_dashboard_widget( 'dashboard_recent_drafts', __('Recent Drafts'), 'wp_dashboard_recent_drafts' );

	// Primary feed (Dev Blog) Widget

	if ( !isset( $widget_options['dashboard_primary'] ) ) {

		$update = true;

		$widget_options['dashboard_primary'] = array(

			'link' => apply_filters( 'dashboard_primary_link', __( 'http://wordpress.org/news/' ) ),

			'url' => apply_filters( 'dashboard_primary_feed', __( 'http://wordpress.org/news/feed/' ) ),

			'title' => apply_filters( 'dashboard_primary_title', __( 'WordPress Blog' ) ),

			'items' => 2,

			'show_summary' => 1,

			'show_author' => 0,

			'show_date' => 1,

		);

	}

	wp_add_dashboard_widget( 'dashboard_primary', $widget_options['dashboard_primary']['title'], 'wp_dashboard_primary', 'wp_dashboard_primary_control' );

	// Secondary Feed (Planet) Widget

	if ( !isset( $widget_options['dashboard_secondary'] ) ) {

		$update = true;

		$widget_options['dashboard_secondary'] = array(

			'link' => apply_filters( 'dashboard_secondary_link', __( 'http://planet.wordpress.org/' ) ),

			'url' => apply_filters( 'dashboard_secondary_feed', __( 'http://planet.wordpress.org/feed/' ) ),

			'title' => apply_filters( 'dashboard_secondary_title', __( 'Other WordPress News' ) ),

			'items' => 5,

			'show_summary' => 0,

			'show_author' => 0,

			'show_date' => 0,

		);

	}

	wp_add_dashboard_widget( 'dashboard_secondary', $widget_options['dashboard_secondary']['title'], 'wp_dashboard_secondary', 'wp_dashboard_secondary_control' );

	// Hook to register new widgets

	// Filter widget order

	if ( is_network_admin() ) {

		do_action( 'wp_network_dashboard_setup' );

		$dashboard_widgets = apply_filters( 'wp_network_dashboard_widgets', array() );

	} elseif ( is_user_admin() ) {

		do_action( 'wp_user_dashboard_setup' );

		$dashboard_widgets = apply_filters( 'wp_user_dashboard_widgets', array() );

	} else {

		do_action( 'wp_dashboard_setup' );

		$dashboard_widgets = apply_filters( 'wp_dashboard_widgets', array() );

	}

	foreach ( $dashboard_widgets as $widget_id ) {

		$name = empty( $wp_registered_widgets[$widget_id]['all_link'] ) ? $wp_registered_widgets[$widget_id]['name'] : $wp_registered_widgets[$widget_id]['name'] . " <a href='{$wp_registered_widgets[$widget_id]['all_link']}' class='edit-box open-box'>" . __('View all') . '</a>';

		wp_add_dashboard_widget( $widget_id, $name, $wp_registered_widgets[$widget_id]['callback'], $wp_registered_widget_controls[$widget_id]['callback'] );

	}

	if ( 'POST' == $_SERVER['REQUEST_METHOD'] && isset($_POST['widget_id']) ) {

		check_admin_referer( 'edit-dashboard-widget_' . $_POST['widget_id'], 'dashboard-widget-nonce' );

		ob_start(); // hack - but the same hack wp-admin/widgets.php uses

		wp_dashboard_trigger_widget_control( $_POST['widget_id'] );

		ob_end_clean();

		wp_redirect( remove_query_arg( 'edit' ) );

		exit;

	}

	if ( $update )

		update_option( 'dashboard_widget_options', $widget_options );

	do_action('do_meta_boxes', $screen->id, 'normal', '');

	do_action('do_meta_boxes', $screen->id, 'side', '');

}

function wp_add_dashboard_widget( $widget_id, $widget_name, $callback, $control_callback = null ) {

	$screen = get_current_screen();

	global $wp_dashboard_control_callbacks;

	if ( $control_callback && current_user_can( 'edit_dashboard' ) && is_callable( $control_callback ) ) {

		$wp_dashboard_control_callbacks[$widget_id] = $control_callback;

		if ( isset( $_GET['edit'] ) && $widget_id == $_GET['edit'] ) {

			list($url) = explode( '#', add_query_arg( 'edit', false ), 2 );

			$widget_name .= ' <span class="postbox-title-action"><a href="' . esc_url( $url ) . '">' . __( 'Cancel' ) . '</a></span>';

			$callback = '_wp_dashboard_control_callback';

		} else {

			list($url) = explode( '#', add_query_arg( 'edit', $widget_id ), 2 );

			$widget_name .= ' <span class="postbox-title-action"><a href="' . esc_url( "$url#$widget_id" ) . '" class="edit-box open-box">' . __( 'Configure' ) . '</a></span>';

		}

	}

	if ( is_blog_admin () )

		$side_widgets = array('dashboard_quick_press', 'dashboard_recent_drafts', 'dashboard_primary', 'dashboard_secondary');

	else if (is_network_admin() )

		$side_widgets = array('dashboard_primary', 'dashboard_secondary');

	else

		$side_widgets = array();

	$location = 'normal';

	if ( in_array($widget_id, $side_widgets) )

		$location = 'side';

	$priority = 'core';

	if ( 'dashboard_browser_nag' === $widget_id )

		$priority = 'high';

	add_meta_box( $widget_id, $widget_name, $callback, $screen, $location, $priority );

}

function _wp_dashboard_control_callback( $dashboard, $meta_box ) {

	echo '<form action="" method="post" class="dashboard-widget-control-form">';

	wp_dashboard_trigger_widget_control( $meta_box['id'] );

	wp_nonce_field( 'edit-dashboard-widget_' . $meta_box['id'], 'dashboard-widget-nonce' );

	echo '<input type="hidden" name="widget_id" value="' . esc_attr($meta_box['id']) . '" />';

	submit_button( __('Submit') );

	echo '</form>';

}

/**

 * Displays the dashboard.

 *

 * @since 2.5.0

 */

function wp_dashboard() {

	$screen = get_current_screen();

	$class = 'columns-' . get_current_screen()->get_columns();

?>

<div id="dashboard-widgets" class="metabox-holder <?php echo $class; ?>">

	<div id='postbox-container-1' class='postbox-container'>

	<?php do_meta_boxes( $screen->id, 'normal', '' ); ?>

	</div>

	<div id='postbox-container-2' class='postbox-container'>

	<?php do_meta_boxes( $screen->id, 'side', '' ); ?>

	</div>

	<div id='postbox-container-3' class='postbox-container'>

	<?php do_meta_boxes( $screen->id, 'column3', '' ); ?>

	</div>

	<div id='postbox-container-4' class='postbox-container'>

	<?php do_meta_boxes( $screen->id, 'column4', '' ); ?>

	</div>

</div>

<?php

	wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false );

	wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false );

}

/* Dashboard Widgets */

function wp_dashboard_right_now() {

	global $wp_registered_sidebars;

	$num_posts = wp_count_posts( 'post' );

	$num_pages = wp_count_posts( 'page' );

	$num_cats  = wp_count_terms('category');

	$num_tags = wp_count_terms('post_tag');

	$num_comm = wp_count_comments( );

	echo "\n\t".'<div class="table table_content">';

	echo "\n\t".'<p class="sub">' . __('Content') . '</p>'."\n\t".'<table>';

	echo "\n\t".'<tr class="first">';

	// Posts

	$num = number_format_i18n( $num_posts->publish );

	$text = _n( 'Post', 'Posts', intval($num_posts->publish) );

	if ( current_user_can( 'edit_posts' ) ) {

		$num = "<a href='edit.php'>$num</a>";

		$text = "<a href='edit.php'>$text</a>";

	}

	echo '<td class="first b b-posts">' . $num . '</td>';

	echo '<td class="t posts">' . $text . '</td>';

	echo '</tr><tr>';

	/* TODO: Show status breakdown on hover

	if ( $can_edit_pages && !empty($num_pages->publish) ) { // how many pages is not exposed in feeds. Don't show if !current_user_can

		$post_type_texts[] = '<a href="edit-pages.php">'.sprintf( _n( '%s page', '%s pages', $num_pages->publish ), number_format_i18n( $num_pages->publish ) ).'</a>';

	}

	if ( $can_edit_posts && !empty($num_posts->draft) ) {

		$post_type_texts[] = '<a href="edit.php?post_status=draft">'.sprintf( _n( '%s draft', '%s drafts', $num_posts->draft ), number_format_i18n( $num_posts->draft ) ).'</a>';

	}

	if ( $can_edit_posts && !empty($num_posts->future) ) {

		$post_type_texts[] = '<a href="edit.php?post_status=future">'.sprintf( _n( '%s scheduled post', '%s scheduled posts', $num_posts->future ), number_format_i18n( $num_posts->future ) ).'</a>';

	}

	if ( current_user_can('publish_posts') && !empty($num_posts->pending) ) {

		$pending_text = sprintf( _n( 'There is <a href="%1$s">%2$s post</a> pending your review.', 'There are <a href="%1$s">%2$s posts</a> pending your review.', $num_posts->pending ), 'edit.php?post_status=pending', number_format_i18n( $num_posts->pending ) );

	} else {

		$pending_text = '';

	}

	*/

	// Pages

	$num = number_format_i18n( $num_pages->publish );

	$text = _n( 'Page', 'Pages', $num_pages->publish );

	if ( current_user_can( 'edit_pages' ) ) {

		$num = "<a href='edit.php?post_type=page'>$num</a>";

		$text = "<a href='edit.php?post_type=page'>$text</a>";

	}

	echo '<td class="first b b_pages">' . $num . '</td>';

	echo '<td class="t pages">' . $text . '</td>';

	echo '</tr><tr>';

	// Categories

	$num = number_format_i18n( $num_cats );

	$text = _n( 'Category', 'Categories', $num_cats );

	if ( current_user_can( 'manage_categories' ) ) {

		$num = "<a href='edit-tags.php?taxonomy=category'>$num</a>";

		$text = "<a href='edit-tags.php?taxonomy=category'>$text</a>";

	}

	echo '<td class="first b b-cats">' . $num . '</td>';

	echo '<td class="t cats">' . $text . '</td>';

	echo '</tr><tr>';

	// Tags

	$num = number_format_i18n( $num_tags );

	$text = _n( 'Tag', 'Tags', $num_tags );

	if ( current_user_can( 'manage_categories' ) ) {

		$num = "<a href='edit-tags.php'>$num</a>";

		$text = "<a href='edit-tags.php'>$text</a>";

	}

	echo '<td class="first b b-tags">' . $num . '</td>';

	echo '<td class="t tags">' . $text . '</td>';

	echo "</tr>";

	do_action('right_now_content_table_end');

	echo "\n\t</table>\n\t</div>";

	echo "\n\t".'<div class="table table_discussion">';

	echo "\n\t".'<p class="sub">' . __('Discussion') . '</p>'."\n\t".'<table>';

	echo "\n\t".'<tr class="first">';

	// Total Comments

	$num = '<span class="total-count">' . number_format_i18n($num_comm->total_comments) . '</span>';

	$text = _n( 'Comment', 'Comments', $num_comm->total_comments );

	if ( current_user_can( 'moderate_comments' ) ) {

		$num = '<a href="edit-comments.php">' . $num . '</a>';

		$text = '<a href="edit-comments.php">' . $text . '</a>';

	}

	echo '<td class="b b-comments">' . $num . '</td>';

	echo '<td class="last t comments">' . $text . '</td>';

	echo '</tr><tr>';

	// Approved Comments

	$num = '<span class="approved-count">' . number_format_i18n($num_comm->approved) . '</span>';

	$text = _nx( 'Approved', 'Approved', $num_comm->approved, 'Right Now' );

	if ( current_user_can( 'moderate_comments' ) ) {

		$num = "<a href='edit-comments.php?comment_status=approved'>$num</a>";

		$text = "<a class='approved' href='edit-comments.php?comment_status=approved'>$text</a>";

	}

	echo '<td class="b b_approved">' . $num . '</td>';

	echo '<td class="last t">' . $text . '</td>';

	echo "</tr>\n\t<tr>";

	// Pending Comments

	$num = '<span class="pending-count">' . number_format_i18n($num_comm->moderated) . '</span>';

	$text = _n( 'Pending', 'Pending', $num_comm->moderated );

	if ( current_user_can( 'moderate_comments' ) ) {

		$num = "<a href='edit-comments.php?comment_status=moderated'>$num</a>";

		$text = "<a class='waiting' href='edit-comments.php?comment_status=moderated'>$text</a>";

	}

	echo '<td class="b b-waiting">' . $num . '</td>';

	echo '<td class="last t">' . $text . '</td>';

	echo "</tr>\n\t<tr>";

	// Spam Comments

	$num = number_format_i18n($num_comm->spam);

	$text = _nx( 'Spam', 'Spam', $num_comm->spam, 'comment' );

	if ( current_user_can( 'moderate_comments' ) ) {

		$num = "<a href='edit-comments.php?comment_status=spam'><span class='spam-count'>$num</span></a>";

		$text = "<a class='spam' href='edit-comments.php?comment_status=spam'>$text</a>";

	}

	echo '<td class="b b-spam">' . $num . '</td>';

	echo '<td class="last t">' . $text . '</td>';

	echo "</tr>";

	do_action('right_now_table_end');

	do_action('right_now_discussion_table_end');

	echo "\n\t</table>\n\t</div>";

	echo "\n\t".'<div class="versions">';

	$theme = wp_get_theme();

	echo "\n\t<p>";

	if ( $theme->errors() ) {

		if ( ! is_multisite() || is_super_admin() )

			echo '<span class="error-message">' . __('ERROR: The themes directory is either empty or doesn&#8217;t exist. Please check your installation.') . '</span>';

	} elseif ( ! empty($wp_registered_sidebars) ) {

		$sidebars_widgets = wp_get_sidebars_widgets();

		$num_widgets = 0;

		foreach ( (array) $sidebars_widgets as $k => $v ) {

			if ( 'wp_inactive_widgets' == $k || 'orphaned_widgets' == substr( $k, 0, 16 ) )

				continue;

			if ( is_array($v) )

				$num_widgets = $num_widgets + count($v);

		}

		$num = number_format_i18n( $num_widgets );