WordPress 4.6.3-scripts

[autoinstalls/wordpress.git] / wp-includes / class.wp-scripts.php

diff --git a/wp-includes/class.wp-scripts.php b/wp-includes/class.wp-scripts.php
index b7c7dedad54a5fec0678462d127a5aa48b732e4a..81634ece416f8ce79d1082aa1ed55d3254b07129 100644 (file)
--- a/wp-includes/class.wp-scripts.php
+++ b/wp-includes/class.wp-scripts.php
@@ -1,40 +1,156 @@
 <?php
 /**
 <?php
 /**

- * BackPress Scripts enqueue.
+ * Dependencies API: WP_Scripts class

  *
  *

- * These classes were refactored from the WordPress WP_Scripts and WordPress
- * script enqueue API.
+ * @since 2.6.0

  *
  *

- * @package BackPress
- * @since r16
+ * @package WordPress
+ * @subpackage Dependencies

  */
 
 /**
  */
 
 /**

- * BackPress Scripts enqueue class.
+ * Core class used to register scripts.

  *
  *

- * @package BackPress
+ * @package WordPress

  * @uses WP_Dependencies
  * @uses WP_Dependencies

- * @since r16
+ * @since 2.1.0

  */
 class WP_Scripts extends WP_Dependencies {
  */
 class WP_Scripts extends WP_Dependencies {

-       public $base_url; // Full URL with trailing slash
+       /**
+        * Base URL for scripts.
+        *
+        * Full URL with trailing slash.
+        *
+        * @since 2.6.0
+        * @access public
+        * @var string
+        */
+       public $base_url;
+
+       /**
+        * URL of the content directory.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var string
+        */

        public $content_url;
        public $content_url;

+
+       /**
+        * Default version string for stylesheets.
+        *
+        * @since 2.6.0
+        * @access public
+        * @var string
+        */

        public $default_version;
        public $default_version;

+
+       /**
+        * Holds handles of scripts which are enqueued in footer.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var array
+        */

        public $in_footer = array();
        public $in_footer = array();

+
+       /**
+        * Holds a list of script handles which will be concatenated.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var string
+        */

        public $concat = '';
        public $concat = '';

+
+       /**
+        * Holds a string which contains script handles and their version.
+        *
+        * @since 2.8.0
+        * @deprecated 3.4.0
+        * @access public
+        * @var string
+        */

        public $concat_version = '';
        public $concat_version = '';

+
+       /**
+        * Whether to perform concatenation.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var bool
+        */

        public $do_concat = false;
        public $do_concat = false;

+
+       /**
+        * Holds HTML markup of scripts and additional data if concatenation
+        * is enabled.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var string
+        */

        public $print_html = '';
        public $print_html = '';

+
+       /**
+        * Holds inline code if concatenation is enabled.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var string
+        */

        public $print_code = '';
        public $print_code = '';

+
+       /**
+        * Holds a list of script handles which are not in the default directory
+        * if concatenation is enabled.
+        *
+        * Unused in core.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var string
+        */

        public $ext_handles = '';
        public $ext_handles = '';

+
+       /**
+        * Holds a string which contains handles and versions of scripts which
+        * are not in the default directory if concatenation is enabled.
+        *
+        * Unused in core.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var string
+        */

        public $ext_version = '';
        public $ext_version = '';

+
+       /**
+        * List of default directories.
+        *
+        * @since 2.8.0
+        * @access public
+        * @var array
+        */

        public $default_dirs;
 
        public $default_dirs;
 

+       /**
+        * Constructor.
+        *
+        * @since 2.6.0
+        * @access public
+        */

        public function __construct() {
                $this->init();
                add_action( 'init', array( $this, 'init' ), 0 );
        }
 
        public function __construct() {
                $this->init();
                add_action( 'init', array( $this, 'init' ), 0 );
        }
 

+       /**
+        * Initialize the class.
+        *
+        * @since 3.4.0
+        * @access public
+        */

        public function init() {
                /**
                 * Fires when the WP_Scripts instance is initialized.
        public function init() {
                /**
                 * Fires when the WP_Scripts instance is initialized.


@@ -51,6 +167,10 @@ class WP_Scripts extends WP_Dependencies {
         *
         * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
         *
         *
         * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
         *

+        * @since 2.1.0
+        * @since 2.8.0 Added the `$group` parameter.
+        * @access public
+        *

         * @param mixed $handles Optional. Scripts to be printed. (void) prints queue, (string) prints
         *                       that script, (array of strings) prints those scripts. Default false.
         * @param int   $group   Optional. If scripts were queued in groups prints this group number.
         * @param mixed $handles Optional. Scripts to be printed. (void) prints queue, (string) prints
         *                       that script, (array of strings) prints those scripts. Default false.
         * @param int   $group   Optional. If scripts were queued in groups prints this group number.


@@ -61,12 +181,37 @@ class WP_Scripts extends WP_Dependencies {
                return $this->do_items( $handles, $group );
        }
 
                return $this->do_items( $handles, $group );
        }
 

-       // Deprecated since 3.3, see print_extra_script()
+       /**
+        * Prints extra scripts of a registered script.
+        *
+        * @since 2.1.0
+        * @since 2.8.0 Added the `$echo` parameter.
+        * @deprecated 3.3.0
+        * @access public
+        *
+        * @see print_extra_script()
+        *
+        * @param string $handle The script's registered handle.
+        * @param bool   $echo   Optional. Whether to echo the extra script instead of just returning it.
+        *                       Default true.
+        * @return bool|string|void Void if no data exists, extra scripts if `$echo` is true, true otherwise.
+        */

        public function print_scripts_l10n( $handle, $echo = true ) {
        public function print_scripts_l10n( $handle, $echo = true ) {

-               _deprecated_function( __FUNCTION__, '3.3', 'print_extra_script()' );
+               _deprecated_function( __FUNCTION__, '3.3.0', 'print_extra_script()' );

                return $this->print_extra_script( $handle, $echo );
        }
 
                return $this->print_extra_script( $handle, $echo );
        }
 

+       /**
+        * Prints extra scripts of a registered script.
+        *
+        * @since 3.3.0
+        * @access public
+        *
+        * @param string $handle The script's registered handle.
+        * @param bool   $echo   Optional. Whether to echo the extra script instead of just returning it.
+        *                       Default true.
+        * @return bool|string|void Void if no data exists, extra scripts if `$echo` is true, true otherwise.
+        */

        public function print_extra_script( $handle, $echo = true ) {
                if ( !$output = $this->get_data( $handle, 'data' ) )
                        return;
        public function print_extra_script( $handle, $echo = true ) {
                if ( !$output = $this->get_data( $handle, 'data' ) )
                        return;


@@ -83,6 +228,19 @@ class WP_Scripts extends WP_Dependencies {
                return true;
        }
 
                return true;
        }
 

+       /**
+        * Processes a script dependency.
+        *
+        * @since 2.6.0
+        * @since 2.8.0 Added the `$group` parameter.
+        * @access public
+        *
+        * @see WP_Dependencies::do_item()
+        *
+        * @param string $handle    The script's registered handle.
+        * @param int|false $group  Optional. Group level: (int) level, (false) no groups. Default false.
+        * @return bool True on success, false on failure.
+        */

        public function do_item( $handle, $group = false ) {
                if ( !parent::do_item($handle) )
                        return false;
        public function do_item( $handle, $group = false ) {
                if ( !parent::do_item($handle) )
                        return false;


@@ -115,9 +273,20 @@ class WP_Scripts extends WP_Dependencies {
                        $cond_after = "<![endif]-->\n";
                }
 
                        $cond_after = "<![endif]-->\n";
                }
 

+               $before_handle = $this->print_inline_script( $handle, 'before', false );
+               $after_handle = $this->print_inline_script( $handle, 'after', false );
+
+               if ( $before_handle ) {
+                       $before_handle = sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $before_handle );
+               }
+
+               if ( $after_handle ) {
+                       $after_handle = sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $after_handle );
+               }
+

                if ( $this->do_concat ) {
                        /**
                if ( $this->do_concat ) {
                        /**

-                        * Filter the script loader source.
+                        * Filters the script loader source.

                         *
                         * @since 2.2.0
                         *
                         *
                         * @since 2.2.0
                         *


@@ -125,7 +294,14 @@ class WP_Scripts extends WP_Dependencies {
                         * @param string $handle Script handle.
                         */
                        $srce = apply_filters( 'script_loader_src', $src, $handle );
                         * @param string $handle Script handle.
                         */
                        $srce = apply_filters( 'script_loader_src', $src, $handle );

-                       if ( $this->in_default_dir( $srce ) && ! $conditional ) {
+
+                       if ( $this->in_default_dir( $srce ) && ( $before_handle || $after_handle ) ) {
+                               $this->do_concat = false;
+
+                               // Have to print the so-far concatenated scripts right away to maintain the right order.
+                               _print_scripts();
+                               $this->reset();
+                       } elseif ( $this->in_default_dir( $srce ) && ! $conditional ) {

                                $this->print_code .= $this->print_extra_script( $handle, false );
                                $this->concat .= "$handle,";
                                $this->concat_version .= "$handle$ver";
                                $this->print_code .= $this->print_extra_script( $handle, false );
                                $this->concat .= "$handle,";
                                $this->concat_version .= "$handle$ver";


@@ -148,6 +324,11 @@ class WP_Scripts extends WP_Dependencies {
                        echo $cond_after;
                }
 
                        echo $cond_after;
                }
 

+               // A single item may alias a set of items, by having dependencies, but no source.
+               if ( ! $obj->src ) {
+                       return true;
+               }
+

                if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) {
                        $src = $this->base_url . $src;
                }
                if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) {
                        $src = $this->base_url . $src;
                }


@@ -161,10 +342,10 @@ class WP_Scripts extends WP_Dependencies {
                if ( ! $src )
                        return true;
 
                if ( ! $src )
                        return true;
 

-               $tag = "{$cond_before}<script type='text/javascript' src='$src'></script>\n{$cond_after}";
+               $tag = "{$cond_before}{$before_handle}<script type='text/javascript' src='$src'></script>\n{$after_handle}{$cond_after}";

 
 

-               /** 
-                * Filter the HTML script tag of an enqueued script.
+               /**
+                * Filters the HTML script tag of an enqueued script.

                 *
                 * @since 4.1.0
                 *
                 *
                 * @since 4.1.0
                 *


@@ -184,9 +365,71 @@ class WP_Scripts extends WP_Dependencies {
        }
 
        /**
        }
 
        /**

-        * Localizes a script
+        * Adds extra code to a registered script.
+        *
+        * @since 4.5.0
+        * @access public
+        *
+        * @param string $handle   Name of the script to add the inline script to. Must be lowercase.
+        * @param string $data     String containing the javascript to be added.
+        * @param string $position Optional. Whether to add the inline script before the handle
+        *                         or after. Default 'after'.
+        * @return bool True on success, false on failure.
+        */
+       public function add_inline_script( $handle, $data, $position = 'after' ) {
+               if ( ! $data ) {
+                       return false;
+               }
+
+               if ( 'after' !== $position ) {
+                       $position = 'before';
+               }
+
+               $script   = (array) $this->get_data( $handle, $position );
+               $script[] = $data;
+
+               return $this->add_data( $handle, $position, $script );
+       }
+
+       /**
+        * Prints inline scripts registered for a specific handle.

         *
         *

-        * Localizes only if the script has already been added
+        * @since 4.5.0
+        * @access public
+        *
+        * @param string $handle   Name of the script to add the inline script to. Must be lowercase.
+        * @param string $position Optional. Whether to add the inline script before the handle
+        *                         or after. Default 'after'.
+        * @param bool $echo       Optional. Whether to echo the script instead of just returning it.
+        *                         Default true.
+        * @return string|false Script on success, false otherwise.
+        */
+       public function print_inline_script( $handle, $position = 'after', $echo = true ) {
+               $output = $this->get_data( $handle, $position );
+
+               if ( empty( $output ) ) {
+                       return false;
+               }
+
+               $output = trim( implode( "\n", $output ), "\n" );
+
+               if ( $echo ) {
+                       printf( "<script type='text/javascript'>\n%s\n</script>\n", $output );
+               }
+
+               return $output;
+       }
+
+       /**
+        * Localizes a script, only if the script has already been added.
+        *
+        * @since 2.1.0
+        * @access public
+        *
+        * @param string $handle
+        * @param string $object_name
+        * @param array $l10n
+        * @return bool

         */
        public function localize( $handle, $object_name, $l10n ) {
                if ( $handle === 'jquery' )
         */
        public function localize( $handle, $object_name, $l10n ) {
                if ( $handle === 'jquery' )


@@ -217,9 +460,21 @@ class WP_Scripts extends WP_Dependencies {
                return $this->add_data( $handle, 'data', $script );
        }
 
                return $this->add_data( $handle, 'data', $script );
        }
 

+       /**
+        * Sets handle group.
+        *
+        * @since 2.8.0
+        * @access public
+        *
+        * @see WP_Dependencies::set_group()
+        *
+        * @param string    $handle    Name of the item. Should be unique.
+        * @param bool      $recursion Internal flag that calling function was called recursively.
+        * @param int|false $group     Optional. Group level: (int) level, (false) no groups. Default false.
+        * @return bool Not already in the group or a lower group
+        */

        public function set_group( $handle, $recursion, $group = false ) {
        public function set_group( $handle, $recursion, $group = false ) {

-
-               if ( $this->registered[$handle]->args === 1 )
+               if ( isset( $this->registered[$handle]->args ) && $this->registered[$handle]->args === 1 )

                        $grp = 1;
                else
                        $grp = (int) $this->get_data( $handle, 'group' );
                        $grp = 1;
                else
                        $grp = (int) $this->get_data( $handle, 'group' );


@@ -230,11 +485,24 @@ class WP_Scripts extends WP_Dependencies {
                return parent::set_group( $handle, $recursion, $grp );
        }
 
                return parent::set_group( $handle, $recursion, $grp );
        }
 

+       /**
+        * Determines script dependencies.
+     *
+        * @since 2.1.0
+        * @access public
+        *
+        * @see WP_Dependencies::all_deps()
+        *
+        * @param mixed     $handles   Item handle and argument (string) or item handles and arguments (array of strings).
+        * @param bool      $recursion Internal flag that function is calling itself.
+        * @param int|false $group     Optional. Group level: (int) level, (false) no groups. Default false.
+        * @return bool True on success, false on failure.
+        */

        public function all_deps( $handles, $recursion = false, $group = false ) {
        public function all_deps( $handles, $recursion = false, $group = false ) {

-               $r = parent::all_deps( $handles, $recursion );
+               $r = parent::all_deps( $handles, $recursion, $group );

                if ( ! $recursion ) {
                        /**
                if ( ! $recursion ) {
                        /**

-                        * Filter the list of script dependencies left to print.
+                        * Filters the list of script dependencies left to print.

                         *
                         * @since 2.3.0
                         *
                         *
                         * @since 2.3.0
                         *


@@ -245,16 +513,45 @@ class WP_Scripts extends WP_Dependencies {
                return $r;
        }
 
                return $r;
        }
 

+       /**
+        * Processes items and dependencies for the head group.
+        *
+        * @since 2.8.0
+        * @access public
+        *
+        * @see WP_Dependencies::do_items()
+        *
+        * @return array Handles of items that have been processed.
+        */

        public function do_head_items() {
                $this->do_items(false, 0);
                return $this->done;
        }
 
        public function do_head_items() {
                $this->do_items(false, 0);
                return $this->done;
        }
 

+       /**
+        * Processes items and dependencies for the footer group.
+        *
+        * @since 2.8.0
+        * @access public
+        *
+        * @see WP_Dependencies::do_items()
+        *
+        * @return array Handles of items that have been processed.
+        */

        public function do_footer_items() {
                $this->do_items(false, 1);
                return $this->done;
        }
 
        public function do_footer_items() {
                $this->do_items(false, 1);
                return $this->done;
        }
 

+       /**
+        * Whether a handle's source is in a default directory.
+        *
+        * @since 2.8.0
+        * @access public
+        *
+        * @param string $src The source of the enqueued script.
+        * @return bool True if found, false if not.
+        */

        public function in_default_dir( $src ) {
                if ( ! $this->default_dirs ) {
                        return true;
        public function in_default_dir( $src ) {
                if ( ! $this->default_dirs ) {
                        return true;


@@ -272,6 +569,12 @@ class WP_Scripts extends WP_Dependencies {
                return false;
        }
 
                return false;
        }
 

+       /**
+        * Resets class properties.
+        *
+        * @since 2.8.0
+        * @access public
+        */

        public function reset() {
                $this->do_concat = false;
                $this->print_code = '';
        public function reset() {
                $this->do_concat = false;
                $this->print_code = '';