X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/af50974463450c98503e763a7836a50e260461a9..784f914b1e4b1c62d6657e86397c2e83bcee4295:/wp-includes/functions.wp-styles.php

diff --git a/wp-includes/functions.wp-styles.php b/wp-includes/functions.wp-styles.php
index ead62965..3c9d6493 100644
--- a/wp-includes/functions.wp-styles.php
+++ b/wp-includes/functions.wp-styles.php
@@ -1,13 +1,30 @@
 <?php
 /**
- * BackPress Styles Procedural API
+ * Dependencies API: Styles functions
  *
  * @since 2.6.0
  *
  * @package WordPress
- * @subpackage BackPress
+ * @subpackage Dependencies
  */
 
+/**
+ * Initialize $wp_styles if it has not been set.
+ *
+ * @global WP_Styles $wp_styles
+ *
+ * @since 4.2.0
+ *
+ * @return WP_Styles WP_Styles instance.
+ */
+function wp_styles() {
+	global $wp_styles;
+	if ( ! ( $wp_styles instanceof WP_Styles ) ) {
+		$wp_styles = new WP_Styles();
+	}
+	return $wp_styles;
+}
+
 /**
  * Display styles that are in the $handles queue.
  *
@@ -23,29 +40,28 @@
  * @return array On success, a processed array of WP_Dependencies items; otherwise, an empty array.
  */
 function wp_print_styles( $handles = false ) {
-	if ( '' === $handles ) // for wp_head
+	if ( '' === $handles ) { // for wp_head
 		$handles = false;
+	}
 	/**
 	 * Fires before styles in the $handles queue are printed.
 	 *
 	 * @since 2.6.0
 	 */
-	if ( ! $handles )
+	if ( ! $handles ) {
 		do_action( 'wp_print_styles' );
+	}
 
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
-		if ( !$handles )
+	global $wp_styles;
+	if ( ! ( $wp_styles instanceof WP_Styles ) ) {
+		if ( ! $handles ) {
 			return array(); // No need to instantiate if nothing is there.
-		else
-			$wp_styles = new WP_Styles();
+		}
 	}
 
-	return $wp_styles->do_items( $handles );
+	return wp_styles()->do_items( $handles );
 }
 
 /**
@@ -57,29 +73,22 @@ function wp_print_styles( $handles = false ) {
  * they were added, i.e. the latter added styles can redeclare the previous.
  *
  * @see WP_Styles::add_inline_style()
- * @global WP_Styles $wp_styles The WP_Styles object for printing styles.
  *
  * @since 3.3.0
  *
- * @param string $handle Name of the stylesheet to add the extra styles to. Must be lowercase.
+ * @param string $handle Name of the stylesheet to add the extra styles to.
  * @param string $data   String containing the CSS styles to be added.
  * @return bool True on success, false on failure.
  */
 function wp_add_inline_style( $handle, $data ) {
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
-		$wp_styles = new WP_Styles();
-	}
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
 	if ( false !== stripos( $data, '</style>' ) ) {
 		_doing_it_wrong( __FUNCTION__, __( 'Do not pass style tags to wp_add_inline_style().' ), '3.7' );
 		$data = trim( preg_replace( '#<style[^>]*>(.*)</style>#is', '$1', $data ) );
 	}
 
-	return $wp_styles->add_inline_style( $handle, $data );
+	return wp_styles()->add_inline_style( $handle, $data );
 }
 
 /**
@@ -87,51 +96,41 @@ function wp_add_inline_style( $handle, $data ) {
  *
  * @see WP_Dependencies::add()
  * @link http://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.
- * @global WP_Styles $wp_styles The WP_Styles object for printing styles.
  *
  * @since 2.6.0
- *
- * @param string      $handle Name of the stylesheet.
- * @param string|bool $src    Path to the stylesheet from the WordPress root directory. Example: '/css/mystyle.css'.
- * @param array       $deps   An array of registered style handles this stylesheet depends on. Default empty array.
- * @param string|bool $ver    String specifying the stylesheet version number. Used to ensure that the correct version
- *                            is sent to the client regardless of caching. Default 'false'. Accepts 'false', 'null', or 'string'.
- * @param string      $media  Optional. The media for which this stylesheet has been defined.
- *                            Default 'all'. Accepts 'all', 'aural', 'braille', 'handheld', 'projection', 'print',
- *                            'screen', 'tty', or 'tv'.
+ * @since 4.3.0 A return value was added.
+ *
+ * @param string           $handle Name of the stylesheet. Should be unique.
+ * @param string           $src    Full URL of the stylesheet, or path of the stylesheet relative to the WordPress root directory.
+ * @param array            $deps   Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
+ * @param string|bool|null $ver    Optional. String specifying stylesheet version number, if it has one, which is added to the URL
+ *                                 as a query string for cache busting purposes. If version is set to false, a version
+ *                                 number is automatically added equal to current installed WordPress version.
+ *                                 If set to null, no version is added.
+ * @param string           $media  Optional. The media for which this stylesheet has been defined.
+ *                                 Default 'all'. Accepts media types like 'all', 'print' and 'screen', or media queries like
+ *                                 '(orientation: portrait)' and '(max-width: 640px)'.
+ * @return bool Whether the style has been registered. True on success, false on failure.
  */
 function wp_register_style( $handle, $src, $deps = array(), $ver = false, $media = 'all' ) {
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
-		$wp_styles = new WP_Styles();
-	}
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
-	$wp_styles->add( $handle, $src, $deps, $ver, $media );
+	return wp_styles()->add( $handle, $src, $deps, $ver, $media );
 }
 
 /**
  * Remove a registered stylesheet.
  *
  * @see WP_Dependencies::remove()
- * @global WP_Styles $wp_styles The WP_Styles object for printing styles.
  *
  * @since 2.1.0
  *
  * @param string $handle Name of the stylesheet to be removed.
  */
 function wp_deregister_style( $handle ) {
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
-		$wp_styles = new WP_Styles();
-	}
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
-	$wp_styles->remove( $handle );
+	wp_styles()->remove( $handle );
 }
 
 /**
@@ -139,30 +138,27 @@ function wp_deregister_style( $handle ) {
  *
  * Registers the style if source provided (does NOT overwrite) and enqueues.
  *
- * @see WP_Dependencies::add(), WP_Dependencies::enqueue()
+ * @see WP_Dependencies::add()
+ * @see WP_Dependencies::enqueue()
  * @link http://www.w3.org/TR/CSS2/media.html#media-types List of CSS media types.
- * @global WP_Styles $wp_styles The WP_Styles object for printing styles.
  *
  * @since 2.6.0
  *
- * @param string      $handle Name of the stylesheet.
- * @param string|bool $src    Path to the stylesheet from the root directory of WordPress. Example: '/css/mystyle.css'.
- * @param array       $deps   An array of registered style handles this stylesheet depends on. Default empty array.
- * @param string|bool $ver    String specifying the stylesheet version number, if it has one. This parameter is used
- *                            to ensure that the correct version is sent to the client regardless of caching, and so
- *                            should be included if a version number is available and makes sense for the stylesheet.
- * @param string      $media  Optional. The media for which this stylesheet has been defined.
- *                            Default 'all'. Accepts 'all', 'aural', 'braille', 'handheld', 'projection', 'print',
- *                            'screen', 'tty', or 'tv'.
+ * @param string           $handle Name of the stylesheet. Should be unique.
+ * @param string           $src    Full URL of the stylesheet, or path of the stylesheet relative to the WordPress root directory.
+ * @param array            $deps   Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
+ * @param string|bool|null $ver    Optional. String specifying stylesheet version number, if it has one, which is added to the URL
+ *                                 as a query string for cache busting purposes. If version is set to false, a version
+ *                                 number is automatically added equal to current installed WordPress version.
+ *                                 If set to null, no version is added.
+ * @param string           $media  Optional. The media for which this stylesheet has been defined.
+ *                                 Default 'all'. Accepts media types like 'all', 'print' and 'screen', or media queries like
+ *                                 '(orientation: portrait)' and '(max-width: 640px)'.
  */
 function wp_enqueue_style( $handle, $src = false, $deps = array(), $ver = false, $media = 'all' ) {
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
-		$wp_styles = new WP_Styles();
-	}
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+
+	$wp_styles = wp_styles();
 
 	if ( $src ) {
 		$_handle = explode('?', $handle);
@@ -175,29 +171,20 @@ function wp_enqueue_style( $handle, $src = false, $deps = array(), $ver = false,
  * Remove a previously enqueued CSS stylesheet.
  *
  * @see WP_Dependencies::dequeue()
- * @global WP_Styles $wp_styles The WP_Styles object for printing styles.
  *
  * @since 3.1.0
  *
  * @param string $handle Name of the stylesheet to be removed.
  */
 function wp_dequeue_style( $handle ) {
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
-		$wp_styles = new WP_Styles();
-	}
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
-	$wp_styles->dequeue( $handle );
+	wp_styles()->dequeue( $handle );
 }
 
 /**
  * Check whether a CSS stylesheet has been added to the queue.
  *
- * @global WP_Styles $wp_styles The WP_Styles object for printing styles.
- *
  * @since 2.8.0
  *
  * @param string $handle Name of the stylesheet.
@@ -206,15 +193,9 @@ function wp_dequeue_style( $handle ) {
  * @return bool Whether style is queued.
  */
 function wp_style_is( $handle, $list = 'enqueued' ) {
-	global $wp_styles;
-	if ( ! is_a( $wp_styles, 'WP_Styles' ) ) {
-		if ( ! did_action( 'init' ) )
-			_doing_it_wrong( __FUNCTION__, sprintf( __( 'Scripts and styles should not be registered or enqueued until the %1$s, %2$s, or %3$s hooks.' ),
-				'<code>wp_enqueue_scripts</code>', '<code>admin_enqueue_scripts</code>', '<code>login_enqueue_scripts</code>' ), '3.3' );
-		$wp_styles = new WP_Styles();
-	}
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
-	return (bool) $wp_styles->query( $handle, $list );
+	return (bool) wp_styles()->query( $handle, $list );
 }
 
 /**
@@ -240,6 +221,5 @@ function wp_style_is( $handle, $list = 'enqueued' ) {
  * @return bool True on success, false on failure.
  */
 function wp_style_add_data( $handle, $key, $value ) {
-	global $wp_styles;
-	return $wp_styles->add_data( $handle, $key, $value );
+	return wp_styles()->add_data( $handle, $key, $value );
 }