<?php

/**

 * WordPress Widgets Administration API

 *

 * @package WordPress

 * @subpackage Administration

 */

/**

 * Display list of the available widgets.

 *

 * @since 2.5.0

 *

 * @global array $wp_registered_widgets

 * @global array $wp_registered_widget_controls

 */

function wp_list_widgets() {

	global $wp_registered_widgets, $wp_registered_widget_controls;

	$sort = $wp_registered_widgets;

	usort( $sort, '_sort_name_callback' );

	$done = array();

	foreach ( $sort as $widget ) {

		if ( in_array( $widget['callback'], $done, true ) ) { // We already showed this multi-widget.

			continue;

		}

		$sidebar = is_active_widget( $widget['callback'], $widget['id'], false, false );

		$done[]  = $widget['callback'];

		if ( ! isset( $widget['params'][0] ) ) {

			$widget['params'][0] = array();

		}

		$args = array(

			'widget_id'   => $widget['id'],

			'widget_name' => $widget['name'],

			'_display'    => 'template',

		);

		if ( isset( $wp_registered_widget_controls[ $widget['id'] ]['id_base'] ) && isset( $widget['params'][0]['number'] ) ) {

			$id_base            = $wp_registered_widget_controls[ $widget['id'] ]['id_base'];

			$args['_temp_id']   = "$id_base-__i__";

			$args['_multi_num'] = next_widget_id_number( $id_base );

			$args['_add']       = 'multi';

		} else {

			$args['_add'] = 'single';

			if ( $sidebar ) {

				$args['_hide'] = '1';

			}

		}

		$control_args = array(

			0 => $args,

			1 => $widget['params'][0],

		);

		$sidebar_args = wp_list_widget_controls_dynamic_sidebar( $control_args );

		wp_widget_control( ...$sidebar_args );

	}

}

/**

 * Callback to sort array by a 'name' key.

 *

 * @since 3.1.0

 * @access private

 *

 * @param array $a First array.

 * @param array $b Second array.

 * @return int

 */

function _sort_name_callback( $a, $b ) {

	return strnatcasecmp( $a['name'], $b['name'] );

}

/**

 * Show the widgets and their settings for a sidebar.

 * Used in the admin widget config screen.

 *

 * @since 2.5.0

 *

 * @param string $sidebar      Sidebar ID.

 * @param string $sidebar_name Optional. Sidebar name. Default empty.

 */

function wp_list_widget_controls( $sidebar, $sidebar_name = '' ) {

	add_filter( 'dynamic_sidebar_params', 'wp_list_widget_controls_dynamic_sidebar' );

	$description = wp_sidebar_description( $sidebar );

	echo '<div id="' . esc_attr( $sidebar ) . '" class="widgets-sortables">';

	if ( $sidebar_name ) {

		$add_to = sprintf(

			/* translators: %s: Widgets sidebar name. */

			__( 'Add to: %s' ),

			$sidebar_name

		);

		?>

		<div class="sidebar-name" data-add-to="<?php echo esc_attr( $add_to ); ?>">

			<button type="button" class="handlediv hide-if-no-js" aria-expanded="true">

				<span class="screen-reader-text"><?php echo esc_html( $sidebar_name ); ?></span>

				<span class="toggle-indicator" aria-hidden="true"></span>

			</button>

			<h2><?php echo esc_html( $sidebar_name ); ?> <span class="spinner"></span></h2>

		</div>

		<?php

	}

	if ( ! empty( $description ) ) {

		?>

		<div class="sidebar-description">

			<p class="description"><?php echo $description; ?></p>

		</div>

		<?php

	}

	dynamic_sidebar( $sidebar );

	echo '</div>';

}

/**

 * Retrieves the widget control arguments.

 *

 * @since 2.5.0

 *

 * @global array $wp_registered_widgets

 *

 * @param array $params

 * @return array

 */

function wp_list_widget_controls_dynamic_sidebar( $params ) {

	global $wp_registered_widgets;

	static $i = 0;

	++$i;

	$widget_id = $params[0]['widget_id'];

	$id        = isset( $params[0]['_temp_id'] ) ? $params[0]['_temp_id'] : $widget_id;

	$hidden    = isset( $params[0]['_hide'] ) ? ' style="display:none;"' : '';

	$params[0]['before_widget'] = "<div id='widget-{$i}_{$id}' class='widget'$hidden>";

	$params[0]['after_widget']  = '</div>';

	$params[0]['before_title']  = '%BEG_OF_TITLE%'; // Deprecated.

	$params[0]['after_title']   = '%END_OF_TITLE%'; // Deprecated.

	if ( is_callable( $wp_registered_widgets[ $widget_id ]['callback'] ) ) {

		$wp_registered_widgets[ $widget_id ]['_callback'] = $wp_registered_widgets[ $widget_id ]['callback'];

		$wp_registered_widgets[ $widget_id ]['callback']  = 'wp_widget_control';

	}

	return $params;

}

/**

 * @global array $wp_registered_widgets

 *

 * @param string $id_base

 * @return int

 */

function next_widget_id_number( $id_base ) {

	global $wp_registered_widgets;

	$number = 1;

	foreach ( $wp_registered_widgets as $widget_id => $widget ) {

		if ( preg_match( '/' . preg_quote( $id_base, '/' ) . '-([0-9]+)$/', $widget_id, $matches ) ) {

			$number = max( $number, $matches[1] );

		}

	}

	++$number;

	return $number;

}

/**

 * Meta widget used to display the control form for a widget.

 *

 * Called from dynamic_sidebar().

 *

 * @since 2.5.0

 *

 * @global array $wp_registered_widgets

 * @global array $wp_registered_widget_controls

 * @global array $sidebars_widgets

 *

 * @param array $sidebar_args

 * @return array

 */

function wp_widget_control( $sidebar_args ) {

	global $wp_registered_widgets, $wp_registered_widget_controls, $sidebars_widgets;

	$widget_id  = $sidebar_args['widget_id'];

	$sidebar_id = isset( $sidebar_args['id'] ) ? $sidebar_args['id'] : false;

	$key        = $sidebar_id ? array_search( $widget_id, $sidebars_widgets[ $sidebar_id ], true ) : '-1'; // Position of widget in sidebar.

	$control    = isset( $wp_registered_widget_controls[ $widget_id ] ) ? $wp_registered_widget_controls[ $widget_id ] : array();

	$widget     = $wp_registered_widgets[ $widget_id ];

	$id_format     = $widget['id'];

	$widget_number = isset( $control['params'][0]['number'] ) ? $control['params'][0]['number'] : '';

	$id_base       = isset( $control['id_base'] ) ? $control['id_base'] : $widget_id;

	$width         = isset( $control['width'] ) ? $control['width'] : '';

	$height        = isset( $control['height'] ) ? $control['height'] : '';

	$multi_number  = isset( $sidebar_args['_multi_num'] ) ? $sidebar_args['_multi_num'] : '';

	$add_new       = isset( $sidebar_args['_add'] ) ? $sidebar_args['_add'] : '';

	$before_form           = isset( $sidebar_args['before_form'] ) ? $sidebar_args['before_form'] : '<form method="post">';

	$after_form            = isset( $sidebar_args['after_form'] ) ? $sidebar_args['after_form'] : '</form>';

	$before_widget_content = isset( $sidebar_args['before_widget_content'] ) ? $sidebar_args['before_widget_content'] : '<div class="widget-content">';

	$after_widget_content  = isset( $sidebar_args['after_widget_content'] ) ? $sidebar_args['after_widget_content'] : '</div>';

	$query_arg = array( 'editwidget' => $widget['id'] );

	if ( $add_new ) {

		$query_arg['addnew'] = 1;

		if ( $multi_number ) {

			$query_arg['num']  = $multi_number;

			$query_arg['base'] = $id_base;

		}

	} else {

		$query_arg['sidebar'] = $sidebar_id;

		$query_arg['key']     = $key;

	}

	/*

	 * We aren't showing a widget control, we're outputting a template

	 * for a multi-widget control.

	 */

	if ( isset( $sidebar_args['_display'] ) && 'template' === $sidebar_args['_display'] && $widget_number ) {

		// number == -1 implies a template where id numbers are replaced by a generic '__i__'.

		$control['params'][0]['number'] = -1;

		// With id_base widget ID's are constructed like {$id_base}-{$id_number}.

		if ( isset( $control['id_base'] ) ) {

			$id_format = $control['id_base'] . '-__i__';

		}

	}

	$wp_registered_widgets[ $widget_id ]['callback'] = $wp_registered_widgets[ $widget_id ]['_callback'];

	unset( $wp_registered_widgets[ $widget_id ]['_callback'] );

	$widget_title = esc_html( strip_tags( $sidebar_args['widget_name'] ) );

	$has_form     = 'noform';

	echo $sidebar_args['before_widget'];

	?>

	<div class="widget-top">

	<div class="widget-title-action">

		<button type="button" class="widget-action hide-if-no-js" aria-expanded="false">

			<span class="screen-reader-text edit">

				<?php

				/* translators: Hidden accessibility text. %s: Widget title. */

				printf( __( 'Edit widget: %s' ), $widget_title );

				?>

			</span>

			<span class="screen-reader-text add">

				<?php

				/* translators: Hidden accessibility text. %s: Widget title. */

				printf( __( 'Add widget: %s' ), $widget_title );

				?>

			</span>

			<span class="toggle-indicator" aria-hidden="true"></span>

		</button>

		<a class="widget-control-edit hide-if-js" href="<?php echo esc_url( add_query_arg( $query_arg ) ); ?>">

			<span class="edit"><?php _ex( 'Edit', 'widget' ); ?></span>

			<span class="add"><?php _ex( 'Add', 'widget' ); ?></span>

			<span class="screen-reader-text"><?php echo $widget_title; ?></span>

		</a>

	</div>

	<div class="widget-title"><h3><?php echo $widget_title; ?><span class="in-widget-title"></span></h3></div>

	</div>

	<div class="widget-inside">

	<?php echo $before_form; ?>

	<?php echo $before_widget_content; ?>

	<?php

	if ( isset( $control['callback'] ) ) {

		$has_form = call_user_func_array( $control['callback'], $control['params'] );

	} else {

		echo "\t\t<p>" . __( 'There are no options for this widget.' ) . "</p>\n";

	}

	$noform_class = '';

	if ( 'noform' === $has_form ) {

		$noform_class = ' widget-control-noform';

	}

	?>

	<?php echo $after_widget_content; ?>

	<input type="hidden" name="widget-id" class="widget-id" value="<?php echo esc_attr( $id_format ); ?>" />

	<input type="hidden" name="id_base" class="id_base" value="<?php echo esc_attr( $id_base ); ?>" />

	<input type="hidden" name="widget-width" class="widget-width" value="<?php echo esc_attr( $width ); ?>" />

	<input type="hidden" name="widget-height" class="widget-height" value="<?php echo esc_attr( $height ); ?>" />

	<input type="hidden" name="widget_number" class="widget_number" value="<?php echo esc_attr( $widget_number ); ?>" />

	<input type="hidden" name="multi_number" class="multi_number" value="<?php echo esc_attr( $multi_number ); ?>" />

	<input type="hidden" name="add_new" class="add_new" value="<?php echo esc_attr( $add_new ); ?>" />

	<div class="widget-control-actions">

		<div class="alignleft">

			<button type="button" class="button-link button-link-delete widget-control-remove"><?php _e( 'Delete' ); ?></button>

			<span class="widget-control-close-wrapper">

				| <button type="button" class="button-link widget-control-close"><?php _e( 'Done' ); ?></button>

			</span>

		</div>

		<div class="alignright<?php echo $noform_class; ?>">

			<?php submit_button( __( 'Save' ), 'primary widget-control-save right', 'savewidget', false, array( 'id' => 'widget-' . esc_attr( $id_format ) . '-savewidget' ) ); ?>

			<span class="spinner"></span>

		</div>

		<br class="clear" />

	</div>

	<?php echo $after_form; ?>

	</div>

	<div class="widget-description">

	<?php

	$widget_description = wp_widget_description( $widget_id );

	echo ( $widget_description ) ? "$widget_description\n" : "$widget_title\n";

	?>

	</div>

	<?php

	echo $sidebar_args['after_widget'];

	return $sidebar_args;

}

/**

 * @param string $classes

 * @return string

 */

function wp_widgets_access_body_class( $classes ) {

	return "$classes widgets_access ";

}