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641 lines
16 KiB
641 lines
16 KiB
<?php |
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/** |
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* Dependencies API: WP_Scripts class |
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* |
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* @since 2.6.0 |
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* |
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* @package WordPress |
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* @subpackage Dependencies |
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*/ |
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|
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/** |
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* Core class used to register scripts. |
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* |
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* @since 2.1.0 |
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* |
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* @see WP_Dependencies |
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*/ |
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class WP_Scripts extends WP_Dependencies { |
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/** |
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* Base URL for scripts. |
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* |
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* Full URL with trailing slash. |
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* |
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* @since 2.6.0 |
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* @var string |
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*/ |
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public $base_url; |
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/** |
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* URL of the content directory. |
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* |
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* @since 2.8.0 |
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* @var string |
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*/ |
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public $content_url; |
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/** |
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* Default version string for stylesheets. |
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* |
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* @since 2.6.0 |
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* @var string |
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*/ |
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public $default_version; |
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|
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/** |
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* Holds handles of scripts which are enqueued in footer. |
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* |
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* @since 2.8.0 |
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* @var array |
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*/ |
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public $in_footer = array(); |
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/** |
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* Holds a list of script handles which will be concatenated. |
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* |
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* @since 2.8.0 |
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* @var string |
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*/ |
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public $concat = ''; |
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/** |
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* Holds a string which contains script handles and their version. |
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* |
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* @since 2.8.0 |
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* @deprecated 3.4.0 |
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* @var string |
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*/ |
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public $concat_version = ''; |
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/** |
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* Whether to perform concatenation. |
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* |
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* @since 2.8.0 |
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* @var bool |
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*/ |
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public $do_concat = false; |
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|
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/** |
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* Holds HTML markup of scripts and additional data if concatenation |
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* is enabled. |
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* |
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* @since 2.8.0 |
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* @var string |
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*/ |
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public $print_html = ''; |
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/** |
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* Holds inline code if concatenation is enabled. |
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* |
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* @since 2.8.0 |
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* @var string |
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*/ |
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public $print_code = ''; |
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/** |
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* Holds a list of script handles which are not in the default directory |
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* if concatenation is enabled. |
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* |
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* Unused in core. |
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* |
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* @since 2.8.0 |
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* @var string |
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*/ |
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public $ext_handles = ''; |
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/** |
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* Holds a string which contains handles and versions of scripts which |
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* are not in the default directory if concatenation is enabled. |
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* |
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* Unused in core. |
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* |
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* @since 2.8.0 |
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* @var string |
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*/ |
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public $ext_version = ''; |
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/** |
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* List of default directories. |
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* |
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* @since 2.8.0 |
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* @var array |
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*/ |
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public $default_dirs; |
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/** |
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* Constructor. |
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* |
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* @since 2.6.0 |
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*/ |
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public function __construct() { |
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$this->init(); |
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add_action( 'init', array( $this, 'init' ), 0 ); |
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} |
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/** |
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* Initialize the class. |
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* |
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* @since 3.4.0 |
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*/ |
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public function init() { |
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/** |
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* Fires when the WP_Scripts instance is initialized. |
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* |
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* @since 2.6.0 |
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* |
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* @param WP_Scripts $this WP_Scripts instance (passed by reference). |
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*/ |
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do_action_ref_array( 'wp_default_scripts', array(&$this) ); |
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} |
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/** |
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* Prints scripts. |
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* |
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* Prints the scripts passed to it or the print queue. Also prints all necessary dependencies. |
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* |
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* @since 2.1.0 |
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* @since 2.8.0 Added the `$group` parameter. |
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* |
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* @param mixed $handles Optional. Scripts to be printed. (void) prints queue, (string) prints |
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* that script, (array of strings) prints those scripts. Default false. |
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* @param int $group Optional. If scripts were queued in groups prints this group number. |
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* Default false. |
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* @return array Scripts that have been printed. |
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*/ |
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public function print_scripts( $handles = false, $group = false ) { |
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return $this->do_items( $handles, $group ); |
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} |
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/** |
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* Prints extra scripts of a registered script. |
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* |
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* @since 2.1.0 |
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* @since 2.8.0 Added the `$echo` parameter. |
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* @deprecated 3.3.0 |
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* |
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* @see print_extra_script() |
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* |
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* @param string $handle The script's registered handle. |
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* @param bool $echo Optional. Whether to echo the extra script instead of just returning it. |
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* Default true. |
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* @return bool|string|void Void if no data exists, extra scripts if `$echo` is true, true otherwise. |
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*/ |
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public function print_scripts_l10n( $handle, $echo = true ) { |
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_deprecated_function( __FUNCTION__, '3.3.0', 'WP_Scripts::print_extra_script()' ); |
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return $this->print_extra_script( $handle, $echo ); |
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} |
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/** |
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* Prints extra scripts of a registered script. |
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* |
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* @since 3.3.0 |
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* |
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* @param string $handle The script's registered handle. |
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* @param bool $echo Optional. Whether to echo the extra script instead of just returning it. |
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* Default true. |
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* @return bool|string|void Void if no data exists, extra scripts if `$echo` is true, true otherwise. |
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*/ |
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public function print_extra_script( $handle, $echo = true ) { |
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if ( !$output = $this->get_data( $handle, 'data' ) ) |
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return; |
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if ( !$echo ) |
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return $output; |
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echo "<script type='text/javascript'>\n"; // CDATA and type='text/javascript' is not needed for HTML 5 |
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echo "/* <![CDATA[ */\n"; |
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echo "$output\n"; |
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echo "/* ]]> */\n"; |
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echo "</script>\n"; |
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return true; |
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} |
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/** |
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* Processes a script dependency. |
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* |
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* @since 2.6.0 |
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* @since 2.8.0 Added the `$group` parameter. |
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* |
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* @see WP_Dependencies::do_item() |
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* |
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* @param string $handle The script's registered handle. |
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* @param int|false $group Optional. Group level: (int) level, (false) no groups. Default false. |
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* @return bool True on success, false on failure. |
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*/ |
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public function do_item( $handle, $group = false ) { |
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if ( !parent::do_item($handle) ) |
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return false; |
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if ( 0 === $group && $this->groups[$handle] > 0 ) { |
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$this->in_footer[] = $handle; |
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return false; |
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} |
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if ( false === $group && in_array($handle, $this->in_footer, true) ) |
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$this->in_footer = array_diff( $this->in_footer, (array) $handle ); |
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$obj = $this->registered[$handle]; |
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if ( null === $obj->ver ) { |
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$ver = ''; |
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} else { |
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$ver = $obj->ver ? $obj->ver : $this->default_version; |
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} |
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if ( isset($this->args[$handle]) ) |
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$ver = $ver ? $ver . '&' . $this->args[$handle] : $this->args[$handle]; |
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$src = $obj->src; |
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$cond_before = $cond_after = ''; |
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$conditional = isset( $obj->extra['conditional'] ) ? $obj->extra['conditional'] : ''; |
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if ( $conditional ) { |
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$cond_before = "<!--[if {$conditional}]>\n"; |
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$cond_after = "<![endif]-->\n"; |
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} |
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$before_handle = $this->print_inline_script( $handle, 'before', false ); |
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$after_handle = $this->print_inline_script( $handle, 'after', false ); |
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if ( $before_handle ) { |
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$before_handle = sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $before_handle ); |
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} |
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if ( $after_handle ) { |
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$after_handle = sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $after_handle ); |
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} |
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if ( $before_handle || $after_handle ) { |
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$inline_script_tag = "{$cond_before}{$before_handle}{$after_handle}{$cond_after}"; |
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} else { |
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$inline_script_tag = ''; |
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} |
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if ( $this->do_concat ) { |
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/** |
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* Filters the script loader source. |
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* |
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* @since 2.2.0 |
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* |
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* @param string $src Script loader source path. |
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* @param string $handle Script handle. |
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*/ |
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$srce = apply_filters( 'script_loader_src', $src, $handle ); |
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if ( $this->in_default_dir( $srce ) && ( $before_handle || $after_handle ) ) { |
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$this->do_concat = false; |
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// Have to print the so-far concatenated scripts right away to maintain the right order. |
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_print_scripts(); |
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$this->reset(); |
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} elseif ( $this->in_default_dir( $srce ) && ! $conditional ) { |
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$this->print_code .= $this->print_extra_script( $handle, false ); |
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$this->concat .= "$handle,"; |
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$this->concat_version .= "$handle$ver"; |
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return true; |
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} else { |
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$this->ext_handles .= "$handle,"; |
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$this->ext_version .= "$handle$ver"; |
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} |
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} |
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$has_conditional_data = $conditional && $this->get_data( $handle, 'data' ); |
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if ( $has_conditional_data ) { |
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echo $cond_before; |
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} |
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$this->print_extra_script( $handle ); |
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if ( $has_conditional_data ) { |
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echo $cond_after; |
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} |
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// A single item may alias a set of items, by having dependencies, but no source. |
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if ( ! $src ) { |
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if ( $inline_script_tag ) { |
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if ( $this->do_concat ) { |
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$this->print_html .= $inline_script_tag; |
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} else { |
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echo $inline_script_tag; |
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} |
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} |
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return true; |
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} |
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$translations = $this->print_translations( $handle, false ); |
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if ( $translations ) { |
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$translations = sprintf( "<script type='text/javascript'>\n%s\n</script>\n", $translations ); |
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} |
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if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) { |
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$src = $this->base_url . $src; |
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} |
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if ( ! empty( $ver ) ) |
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$src = add_query_arg( 'ver', $ver, $src ); |
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/** This filter is documented in wp-includes/class.wp-scripts.php */ |
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$src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) ); |
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if ( ! $src ) |
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return true; |
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$tag = "{$translations}{$cond_before}{$before_handle}<script type='text/javascript' src='$src'></script>\n{$after_handle}{$cond_after}"; |
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/** |
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* Filters the HTML script tag of an enqueued script. |
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* |
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* @since 4.1.0 |
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* |
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* @param string $tag The `<script>` tag for the enqueued script. |
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* @param string $handle The script's registered handle. |
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* @param string $src The script's source URL. |
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*/ |
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$tag = apply_filters( 'script_loader_tag', $tag, $handle, $src ); |
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if ( $this->do_concat ) { |
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$this->print_html .= $tag; |
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} else { |
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echo $tag; |
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} |
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return true; |
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} |
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/** |
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* Adds extra code to a registered script. |
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* |
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* @since 4.5.0 |
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* |
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* @param string $handle Name of the script to add the inline script to. Must be lowercase. |
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* @param string $data String containing the javascript to be added. |
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* @param string $position Optional. Whether to add the inline script before the handle |
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* or after. Default 'after'. |
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* @return bool True on success, false on failure. |
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*/ |
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public function add_inline_script( $handle, $data, $position = 'after' ) { |
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if ( ! $data ) { |
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return false; |
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} |
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if ( 'after' !== $position ) { |
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$position = 'before'; |
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} |
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$script = (array) $this->get_data( $handle, $position ); |
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$script[] = $data; |
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return $this->add_data( $handle, $position, $script ); |
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} |
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/** |
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* Prints inline scripts registered for a specific handle. |
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* |
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* @since 4.5.0 |
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* |
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* @param string $handle Name of the script to add the inline script to. Must be lowercase. |
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* @param string $position Optional. Whether to add the inline script before the handle |
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* or after. Default 'after'. |
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* @param bool $echo Optional. Whether to echo the script instead of just returning it. |
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* Default true. |
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* @return string|false Script on success, false otherwise. |
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*/ |
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public function print_inline_script( $handle, $position = 'after', $echo = true ) { |
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$output = $this->get_data( $handle, $position ); |
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if ( empty( $output ) ) { |
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return false; |
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} |
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$output = trim( implode( "\n", $output ), "\n" ); |
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if ( $echo ) { |
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printf( "<script type='text/javascript'>\n%s\n</script>\n", $output ); |
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} |
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return $output; |
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} |
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/** |
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* Localizes a script, only if the script has already been added. |
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* |
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* @since 2.1.0 |
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* |
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* @param string $handle |
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* @param string $object_name |
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* @param array $l10n |
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* @return bool |
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*/ |
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public function localize( $handle, $object_name, $l10n ) { |
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if ( $handle === 'jquery' ) |
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$handle = 'jquery-core'; |
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if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present |
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$after = $l10n['l10n_print_after']; |
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unset($l10n['l10n_print_after']); |
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} |
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foreach ( (array) $l10n as $key => $value ) { |
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if ( !is_scalar($value) ) |
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continue; |
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$l10n[$key] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8'); |
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} |
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$script = "var $object_name = " . wp_json_encode( $l10n ) . ';'; |
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if ( !empty($after) ) |
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$script .= "\n$after;"; |
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$data = $this->get_data( $handle, 'data' ); |
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if ( !empty( $data ) ) |
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$script = "$data\n$script"; |
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return $this->add_data( $handle, 'data', $script ); |
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} |
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/** |
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* Sets handle group. |
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* |
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* @since 2.8.0 |
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* |
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* @see WP_Dependencies::set_group() |
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* |
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* @param string $handle Name of the item. Should be unique. |
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* @param bool $recursion Internal flag that calling function was called recursively. |
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* @param int|false $group Optional. Group level: (int) level, (false) no groups. Default false. |
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* @return bool Not already in the group or a lower group |
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*/ |
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public function set_group( $handle, $recursion, $group = false ) { |
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if ( isset( $this->registered[$handle]->args ) && $this->registered[$handle]->args === 1 ) |
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$grp = 1; |
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else |
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$grp = (int) $this->get_data( $handle, 'group' ); |
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if ( false !== $group && $grp > $group ) |
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$grp = $group; |
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return parent::set_group( $handle, $recursion, $grp ); |
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} |
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/** |
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* Sets a translation textdomain. |
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* |
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* @since 5.0.0 |
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* |
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* @param string $handle Name of the script to register a translation domain to. |
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* @param string $domain The textdomain. |
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* @param string $path Optional. The full file path to the directory containing translation files. |
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* |
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* @return bool True if the textdomain was registered, false if not. |
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*/ |
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public function set_translations( $handle, $domain, $path = null ) { |
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if ( ! isset( $this->registered[ $handle ] ) ) { |
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return false; |
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} |
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/** @var \_WP_Dependency $obj */ |
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$obj = $this->registered[ $handle ]; |
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if ( ! in_array( 'wp-i18n', $obj->deps, true ) ) { |
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$obj->deps[] = 'wp-i18n'; |
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} |
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return $obj->set_translations( $domain, $path ); |
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} |
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/** |
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* Prints translations set for a specific handle. |
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* |
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* @since 5.0.0 |
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* |
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* @param string $handle Name of the script to add the inline script to. Must be lowercase. |
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* @param bool $echo Optional. Whether to echo the script instead of just returning it. |
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* Default true. |
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* @return string|false Script on success, false otherwise. |
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*/ |
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public function print_translations( $handle, $echo = true ) { |
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if ( ! isset( $this->registered[ $handle ] ) || empty( $this->registered[ $handle ]->textdomain ) ) { |
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return false; |
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} |
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$domain = $this->registered[ $handle ]->textdomain; |
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$path = $this->registered[ $handle ]->translations_path; |
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$json_translations = load_script_textdomain( $handle, $domain, $path ); |
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if ( ! $json_translations ) { |
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// Register empty locale data object to ensure the domain still exists. |
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$json_translations = '{ "locale_data": { "messages": { "": {} } } }'; |
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} |
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$output = '(function( translations ){' . |
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'translations.locale_data.messages[""].domain = "' . $domain . '";' . |
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'wp.i18n.setLocaleData( translations.locale_data.messages, "' . $domain . '" );' . |
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'})(' . $json_translations . ');'; |
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if ( $echo ) { |
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printf( "<script type='text/javascript'>\n%s\n</script>\n", $output ); |
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} |
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return $output; |
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} |
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/** |
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* Determines script dependencies. |
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* |
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* @since 2.1.0 |
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* |
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* @see WP_Dependencies::all_deps() |
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* |
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* @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings). |
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* @param bool $recursion Internal flag that function is calling itself. |
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* @param int|false $group Optional. Group level: (int) level, (false) no groups. Default false. |
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* @return bool True on success, false on failure. |
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*/ |
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public function all_deps( $handles, $recursion = false, $group = false ) { |
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$r = parent::all_deps( $handles, $recursion, $group ); |
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if ( ! $recursion ) { |
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/** |
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* Filters the list of script dependencies left to print. |
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* |
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* @since 2.3.0 |
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* |
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* @param array $to_do An array of script dependencies. |
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*/ |
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$this->to_do = apply_filters( 'print_scripts_array', $this->to_do ); |
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} |
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return $r; |
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} |
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/** |
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* Processes items and dependencies for the head group. |
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* |
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* @since 2.8.0 |
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* |
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* @see WP_Dependencies::do_items() |
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* |
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* @return array Handles of items that have been processed. |
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*/ |
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public function do_head_items() { |
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$this->do_items(false, 0); |
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return $this->done; |
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} |
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/** |
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* Processes items and dependencies for the footer group. |
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* |
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* @since 2.8.0 |
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* |
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* @see WP_Dependencies::do_items() |
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* |
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* @return array Handles of items that have been processed. |
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*/ |
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public function do_footer_items() { |
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$this->do_items(false, 1); |
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return $this->done; |
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} |
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/** |
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* Whether a handle's source is in a default directory. |
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* |
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* @since 2.8.0 |
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* |
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* @param string $src The source of the enqueued script. |
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* @return bool True if found, false if not. |
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*/ |
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public function in_default_dir( $src ) { |
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if ( ! $this->default_dirs ) { |
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return true; |
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} |
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|
|
if ( 0 === strpos( $src, '/' . WPINC . '/js/l10n' ) ) { |
|
return false; |
|
} |
|
|
|
foreach ( (array) $this->default_dirs as $test ) { |
|
if ( 0 === strpos( $src, $test ) ) { |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
/** |
|
* Resets class properties. |
|
* |
|
* @since 2.8.0 |
|
*/ |
|
public function reset() { |
|
$this->do_concat = false; |
|
$this->print_code = ''; |
|
$this->concat = ''; |
|
$this->concat_version = ''; |
|
$this->print_html = ''; |
|
$this->ext_version = ''; |
|
$this->ext_handles = ''; |
|
} |
|
}
|
|
|