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WordPressを読む　68-4 /blog/wp-includes/widgets.php 4

2014/12/04 Wordpress

/**
 * Look for "lost" widgets, this has to run at least on each theme change.
 *
 * @since 2.8.0
 *
 * @param mixed $theme_changed Whether the theme was changed as a boolean. A value
 *                             of 'customize' defers updates for the customizer.
 * @return array
 */
function retrieve_widgets( $theme_changed = false ) {
	global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;

	$registered_sidebar_keys = array_keys( $wp_registered_sidebars );
	$orphaned = 0;

	$old_sidebars_widgets = get_theme_mod( 'sidebars_widgets' );
	if ( is_array( $old_sidebars_widgets ) ) {
		// time() that sidebars were stored is in $old_sidebars_widgets['time']
		$_sidebars_widgets = $old_sidebars_widgets['data'];

		if ( 'customize' !== $theme_changed ) {
			remove_theme_mod( 'sidebars_widgets' );
		}

		foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
			if ( 'wp_inactive_widgets' === $sidebar || 'orphaned_widgets' === substr( $sidebar, 0, 16 ) ) {
				continue;
			}

			if ( !in_array( $sidebar, $registered_sidebar_keys ) ) {
				$_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $widgets;
				unset( $_sidebars_widgets[$sidebar] );
			}
		}
	} else {
		if ( empty( $sidebars_widgets ) )
			return;

		unset( $sidebars_widgets['array_version'] );

		$old = array_keys($sidebars_widgets);
		sort($old);
		sort($registered_sidebar_keys);

		if ( $old == $registered_sidebar_keys )
			return;

		$_sidebars_widgets = array(
			'wp_inactive_widgets' => !empty( $sidebars_widgets['wp_inactive_widgets'] ) ? $sidebars_widgets['wp_inactive_widgets'] : array()
		);

		unset( $sidebars_widgets['wp_inactive_widgets'] );

		foreach ( $wp_registered_sidebars as $id => $settings ) {
			if ( $theme_changed ) {
				$_sidebars_widgets[$id] = array_shift( $sidebars_widgets );
			} else {
				// no theme change, grab only sidebars that are currently registered
				if ( isset( $sidebars_widgets[$id] ) ) {
					$_sidebars_widgets[$id] = $sidebars_widgets[$id];
					unset( $sidebars_widgets[$id] );
				}
			}
		}

		foreach ( $sidebars_widgets as $val ) {
			if ( is_array($val) && ! empty( $val ) )
				$_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $val;
		}
	}

	// discard invalid, theme-specific widgets from sidebars
	$shown_widgets = array();

	foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
		if ( !is_array($widgets) )
			continue;

		$_widgets = array();
		foreach ( $widgets as $widget ) {
			if ( isset($wp_registered_widgets[$widget]) )
				$_widgets[] = $widget;
		}

		$_sidebars_widgets[$sidebar] = $_widgets;
		$shown_widgets = array_merge($shown_widgets, $_widgets);
	}

	$sidebars_widgets = $_sidebars_widgets;
	unset($_sidebars_widgets, $_widgets);

	// find hidden/lost multi-widget instances
	$lost_widgets = array();
	foreach ( $wp_registered_widgets as $key => $val ) {
		if ( in_array($key, $shown_widgets, true) )
			continue;

		$number = preg_replace('/.+?-([0-9]+)$/', '$1', $key);

		if ( 2 > (int) $number )
			continue;

		$lost_widgets[] = $key;
	}

	$sidebars_widgets['wp_inactive_widgets'] = array_merge($lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets']);
	if ( 'customize' !== $theme_changed ) {
		wp_set_sidebars_widgets( $sidebars_widgets );
	}

	return $sidebars_widgets;
}

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/**

* Look for "lost" widgets, this has to run at least on each theme change.

* @since 2.8.0

* @param mixed $theme_changed Whether the theme was changed as a boolean. A value

* of 'customize' defers updates for the customizer.

* @return array

function retrieve_widgets( $theme_changed = false ) {

global $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;

$registered_sidebar_keys = array_keys( $wp_registered_sidebars );

$orphaned = 0;

$old_sidebars_widgets = get_theme_mod( 'sidebars_widgets' );

if ( is_array( $old_sidebars_widgets ) ) {

// time() that sidebars were stored is in $old_sidebars_widgets['time']

$_sidebars_widgets = $old_sidebars_widgets['data'];

if ( 'customize' !== $theme_changed ) {

remove_theme_mod( 'sidebars_widgets' );

}

foreach ( $_sidebars_widgets as $sidebar => $widgets ) {

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

continue;

}

if ( !in_array( $sidebar, $registered_sidebar_keys ) ) {

$_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $widgets;

unset( $_sidebars_widgets[$sidebar] );

}

} else {

if ( empty( $sidebars_widgets ) )

return;

unset( $sidebars_widgets['array_version'] );

$old = array_keys($sidebars_widgets);

sort($old);

sort($registered_sidebar_keys);

if ( $old == $registered_sidebar_keys )

return;

$_sidebars_widgets = array(

'wp_inactive_widgets' => !empty( $sidebars_widgets['wp_inactive_widgets'] ) ? $sidebars_widgets['wp_inactive_widgets'] : array()

);

unset( $sidebars_widgets['wp_inactive_widgets'] );

foreach ( $wp_registered_sidebars as $id => $settings ) {

if ( $theme_changed ) {

$_sidebars_widgets[$id] = array_shift( $sidebars_widgets );

} else {

// no theme change, grab only sidebars that are currently registered

if ( isset( $sidebars_widgets[$id] ) ) {

$_sidebars_widgets[$id] = $sidebars_widgets[$id];

unset( $sidebars_widgets[$id] );

}

foreach ( $sidebars_widgets as $val ) {

if ( is_array($val) && ! empty( $val ) )

$_sidebars_widgets['orphaned_widgets_' . ++$orphaned] = $val;

}

// discard invalid, theme-specific widgets from sidebars

$shown_widgets = array();

foreach ( $_sidebars_widgets as $sidebar => $widgets ) {

if ( !is_array($widgets) )

continue;

$_widgets = array();

foreach ( $widgets as $widget ) {

if ( isset($wp_registered_widgets[$widget]) )

$_widgets[] = $widget;

}

$_sidebars_widgets[$sidebar] = $_widgets;

$shown_widgets = array_merge($shown_widgets, $_widgets);

}

$sidebars_widgets = $_sidebars_widgets;

unset($_sidebars_widgets, $_widgets);

// find hidden/lost multi-widget instances

$lost_widgets = array();

foreach ( $wp_registered_widgets as $key => $val ) {

if ( in_array($key, $shown_widgets, true) )

continue;

$number = preg_replace('/.+?-([0-9]+)$/', '$1', $key);

if ( 2 > (int) $number )

continue;

$lost_widgets[] = $key;

}

$sidebars_widgets['wp_inactive_widgets'] = array_merge($lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets']);

if ( 'customize' !== $theme_changed ) {

wp_set_sidebars_widgets( $sidebars_widgets );

}

return $sidebars_widgets;

}

: WordPressを読む　68-3 /blog/wp-includes/widgets.php 3
2014/12/04 Wordpress
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: WordPressを読む　68-2 /blog/wp-includes/widgets.php 2
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: WordPressを読む　68-1 /blog/wp-includes/widgets.php 1
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: WordPressを読む　67-2 /blog/wp-includes/class-http.php 2
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: WordPressを読む　67-1 /blog/wp-includes/class-http.php1
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