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458 lines
10 KiB
458 lines
10 KiB
<?php |
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/** |
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* Dependencies API: WP_Styles 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 styles. |
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* |
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* @since 2.6.0 |
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* |
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* @see WP_Dependencies |
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*/ |
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class WP_Styles extends WP_Dependencies { |
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/** |
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* Base URL for styles. |
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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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* The current text direction. |
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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 $text_direction = 'ltr'; |
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/** |
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* Holds a list of style 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 style 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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* Holds HTML markup of styles 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 styles if concatenation is enabled. |
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* |
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* @since 3.3.0 |
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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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* 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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* Holds a string which contains the type attribute for style tag. |
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* |
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* If the current theme does not declare HTML5 support for 'style', |
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* then it initializes as `type='text/css'`. |
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* |
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* @since 5.3.0 |
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* @var string |
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*/ |
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private $type_attr = ''; |
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/** |
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* Constructor. |
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* |
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* @since 2.6.0 |
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*/ |
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public function __construct() { |
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if ( |
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function_exists( 'is_admin' ) && ! is_admin() |
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&& |
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function_exists( 'current_theme_supports' ) && ! current_theme_supports( 'html5', 'style' ) |
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) { |
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$this->type_attr = " type='text/css'"; |
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} |
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/** |
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* Fires when the WP_Styles 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_Styles $this WP_Styles instance (passed by reference). |
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*/ |
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do_action_ref_array( 'wp_default_styles', array( &$this ) ); |
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} |
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/** |
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* Processes a style dependency. |
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* |
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* @since 2.6.0 |
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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 style's registered handle. |
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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 ) { |
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if ( ! parent::do_item( $handle ) ) { |
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return false; |
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} |
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$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[ $handle ]; |
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} |
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$src = $obj->src; |
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$cond_before = ''; |
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$cond_after = ''; |
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$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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$inline_style = $this->print_inline_style( $handle, false ); |
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if ( $inline_style ) { |
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$inline_style_tag = sprintf( |
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"<style id='%s-inline-css'%s>\n%s\n</style>\n", |
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esc_attr( $handle ), |
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$this->type_attr, |
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$inline_style |
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); |
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} else { |
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$inline_style_tag = ''; |
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} |
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if ( $this->do_concat ) { |
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if ( $this->in_default_dir( $src ) && ! $conditional && ! isset( $obj->extra['alt'] ) ) { |
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$this->concat .= "$handle,"; |
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$this->concat_version .= "$handle$ver"; |
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$this->print_code .= $inline_style; |
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return true; |
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} |
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} |
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if ( isset( $obj->args ) ) { |
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$media = esc_attr( $obj->args ); |
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} else { |
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$media = 'all'; |
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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_style_tag ) { |
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if ( $this->do_concat ) { |
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$this->print_html .= $inline_style_tag; |
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} else { |
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echo $inline_style_tag; |
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} |
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} |
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return true; |
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} |
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$href = $this->_css_href( $src, $ver, $handle ); |
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if ( ! $href ) { |
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return true; |
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} |
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$rel = isset( $obj->extra['alt'] ) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet'; |
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$title = isset( $obj->extra['title'] ) ? sprintf( "title='%s'", esc_attr( $obj->extra['title'] ) ) : ''; |
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$tag = sprintf( |
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"<link rel='%s' id='%s-css' %s href='%s'%s media='%s' />\n", |
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$rel, |
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$handle, |
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$title, |
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$href, |
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$this->type_attr, |
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$media |
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); |
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/** |
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* Filters the HTML link tag of an enqueued style. |
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* |
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* @since 2.6.0 |
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* @since 4.3.0 Introduced the `$href` parameter. |
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* @since 4.5.0 Introduced the `$media` parameter. |
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* |
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* @param string $html The link tag for the enqueued style. |
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* @param string $handle The style's registered handle. |
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* @param string $href The stylesheet's source URL. |
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* @param string $media The stylesheet's media attribute. |
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*/ |
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$tag = apply_filters( 'style_loader_tag', $tag, $handle, $href, $media ); |
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if ( 'rtl' === $this->text_direction && isset( $obj->extra['rtl'] ) && $obj->extra['rtl'] ) { |
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if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) { |
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$suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : ''; |
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$rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $src, $ver, "$handle-rtl" ) ); |
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} else { |
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$rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" ); |
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} |
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$rtl_tag = sprintf( |
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"<link rel='%s' id='%s-rtl-css' %s href='%s'%s media='%s' />\n", |
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$rel, |
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$handle, |
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$title, |
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$rtl_href, |
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$this->type_attr, |
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$media |
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); |
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/** This filter is documented in wp-includes/class.wp-styles.php */ |
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$rtl_tag = apply_filters( 'style_loader_tag', $rtl_tag, $handle, $rtl_href, $media ); |
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if ( $obj->extra['rtl'] === 'replace' ) { |
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$tag = $rtl_tag; |
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} else { |
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$tag .= $rtl_tag; |
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} |
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} |
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if ( $this->do_concat ) { |
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$this->print_html .= $cond_before; |
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$this->print_html .= $tag; |
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if ( $inline_style_tag ) { |
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$this->print_html .= $inline_style_tag; |
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} |
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$this->print_html .= $cond_after; |
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} else { |
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echo $cond_before; |
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echo $tag; |
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$this->print_inline_style( $handle ); |
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echo $cond_after; |
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} |
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return true; |
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} |
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/** |
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* Adds extra CSS styles to a registered stylesheet. |
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* |
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* @since 3.3.0 |
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* |
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* @param string $handle The style's registered handle. |
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* @param string $code String containing the CSS styles to be added. |
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* @return bool True on success, false on failure. |
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*/ |
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public function add_inline_style( $handle, $code ) { |
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if ( ! $code ) { |
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return false; |
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} |
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$after = $this->get_data( $handle, 'after' ); |
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if ( ! $after ) { |
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$after = array(); |
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} |
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$after[] = $code; |
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return $this->add_data( $handle, 'after', $after ); |
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} |
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/** |
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* Prints extra CSS styles of a registered stylesheet. |
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* |
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* @since 3.3.0 |
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* |
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* @param string $handle The style's registered handle. |
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* @param bool $echo Optional. Whether to echo the inline style instead of just returning it. |
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* Default true. |
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* @return string|bool False if no data exists, inline styles if `$echo` is true, true otherwise. |
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*/ |
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public function print_inline_style( $handle, $echo = true ) { |
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$output = $this->get_data( $handle, 'after' ); |
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if ( empty( $output ) ) { |
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return false; |
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} |
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$output = implode( "\n", $output ); |
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if ( ! $echo ) { |
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return $output; |
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} |
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printf( |
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"<style id='%s-inline-css'%s>\n%s\n</style>\n", |
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esc_attr( $handle ), |
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$this->type_attr, |
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$output |
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); |
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return true; |
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} |
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/** |
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* Determines style dependencies. |
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* |
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* @since 2.6.0 |
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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 Group level: (int) level, (false) no groups. |
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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 array of enqueued styles before processing for output. |
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* |
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* @since 2.6.0 |
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* |
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* @param string[] $to_do The list of enqueued style handles about to be processed. |
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*/ |
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$this->to_do = apply_filters( 'print_styles_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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* Generates an enqueued style's fully-qualified URL. |
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* |
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* @since 2.6.0 |
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* |
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* @param string $src The source of the enqueued style. |
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* @param string $ver The version of the enqueued style. |
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* @param string $handle The style's registered handle. |
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* @return string Style's fully-qualified URL. |
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*/ |
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public function _css_href( $src, $ver, $handle ) { |
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if ( ! is_bool( $src ) && ! 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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} |
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/** |
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* Filters an enqueued style's fully-qualified URL. |
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* |
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* @since 2.6.0 |
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* |
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* @param string $src The source URL of the enqueued style. |
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* @param string $handle The style's registered handle. |
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*/ |
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$src = apply_filters( 'style_loader_src', $src, $handle ); |
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return esc_url( $src ); |
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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 style. |
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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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foreach ( (array) $this->default_dirs as $test ) { |
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if ( 0 === strpos( $src, $test ) ) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Processes items and dependencies for the footer group. |
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* |
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* HTML 5 allows styles in the body, grab late enqueued items and output them in the footer. |
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* |
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* @since 3.3.0 |
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* |
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* @see WP_Dependencies::do_items() |
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* |
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* @return array Handles of items that have been processed. |
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*/ |
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public function do_footer_items() { |
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$this->do_items( false, 1 ); |
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return $this->done; |
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} |
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/** |
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* Resets class properties. |
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* |
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* @since 3.3.0 |
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*/ |
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public function reset() { |
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$this->do_concat = false; |
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$this->concat = ''; |
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$this->concat_version = ''; |
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$this->print_html = ''; |
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} |
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}
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