<?php
/**
- * BackPress Styles enqueue.
+ * Dependencies API: WP_Styles class
*
- * These classes were refactored from the WordPress WP_Scripts and WordPress
- * script enqueue API.
+ * @since 2.6.0
*
- * @package BackPress
- * @since r74
+ * @package WordPress
+ * @subpackage Dependencies
*/
/**
- * BackPress Styles enqueue class.
+ * Core class used to register styles.
*
- * @package BackPress
+ * @package WordPress
* @uses WP_Dependencies
- * @since r74
+ * @since 2.6.0
*/
class WP_Styles extends WP_Dependencies {
+ /**
+ * Base URL for styles.
+ *
+ * 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;
+
+ /**
+ * Default version string for stylesheets.
+ *
+ * @since 2.6.0
+ * @access public
+ * @var string
+ */
public $default_version;
+
+ /**
+ * The current text direction.
+ *
+ * @since 2.6.0
+ * @access public
+ * @var string
+ */
public $text_direction = 'ltr';
+
+ /**
+ * Holds a list of style handles which will be concatenated.
+ *
+ * @since 2.8.0
+ * @access public
+ * @var string
+ */
public $concat = '';
+
+ /**
+ * Holds a string which contains style handles and their version.
+ *
+ * @since 2.8.0
+ * @deprecated 3.4.0
+ * @access public
+ * @var string
+ */
public $concat_version = '';
+
+ /**
+ * Whether to perform concatenation.
+ *
+ * @since 2.8.0
+ * @access public
+ * @var bool
+ */
public $do_concat = false;
+
+ /**
+ * Holds HTML markup of styles and additional data if concatenation
+ * is enabled.
+ *
+ * @since 2.8.0
+ * @access public
+ * @var string
+ */
public $print_html = '';
+
+ /**
+ * Holds inline styles if concatenation is enabled.
+ *
+ * @since 3.3.0
+ * @access public
+ * @var string
+ */
public $print_code = '';
+
+ /**
+ * List of default directories.
+ *
+ * @since 2.8.0
+ * @access public
+ * @var array
+ */
public $default_dirs;
+ /**
+ * Constructor.
+ *
+ * @since 2.6.0
+ * @access public
+ */
public function __construct() {
/**
* Fires when the WP_Styles instance is initialized.
}
/**
- * @param string $handle
- * @return bool
+ * Processes a style dependency.
+ *
+ * @since 2.6.0
+ * @access public
+ *
+ * @see WP_Dependencies::do_item()
+ *
+ * @param string $handle The style's registered handle.
+ * @return bool True on success, false on failure.
*/
public function do_item( $handle ) {
if ( !parent::do_item($handle) )
else
$media = 'all';
+ // A single item may alias a set of items, by having dependencies, but no source.
+ if ( ! $obj->src ) {
+ if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
+ $inline_style = sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
+ if ( $this->do_concat ) {
+ $this->print_html .= $inline_style;
+ } else {
+ echo $inline_style;
+ }
+ }
+ return true;
+ }
+
$href = $this->_css_href( $obj->src, $ver, $handle );
- if ( empty( $href ) ) {
- // Turns out there is nothing to print.
+ if ( ! $href ) {
return true;
}
+
$rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
$title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';
/**
- * Filter the HTML link tag of an enqueued style.
+ * Filters the HTML link tag of an enqueued style.
*
* @since 2.6.0
+ * @since 4.3.0 Introduced the `$href` parameter.
+ * @since 4.5.0 Introduced the `$media` parameter.
*
- * @param string The link tag for the enqueued style.
+ * @param string $html The link tag for the enqueued style.
* @param string $handle The style's registered handle.
+ * @param string $href The stylesheet's source URL.
+ * @param string $media The stylesheet's media attribute.
*/
- $tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
+ $tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle, $href, $media);
if ( 'rtl' === $this->text_direction && isset($obj->extra['rtl']) && $obj->extra['rtl'] ) {
if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) {
$suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : '';
}
/** This filter is documented in wp-includes/class.wp-styles.php */
- $rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle );
+ $rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle, $rtl_href, $media );
if ( $obj->extra['rtl'] === 'replace' ) {
$tag = $rtl_tag;
}
}
- if ( isset($obj->extra['conditional']) && $obj->extra['conditional'] ) {
- $tag = "<!--[if {$obj->extra['conditional']}]>\n" . $tag . "<![endif]-->\n";
+ $conditional_pre = $conditional_post = '';
+ if ( isset( $obj->extra['conditional'] ) && $obj->extra['conditional'] ) {
+ $conditional_pre = "<!--[if {$obj->extra['conditional']}]>\n";
+ $conditional_post = "<![endif]-->\n";
}
if ( $this->do_concat ) {
+ $this->print_html .= $conditional_pre;
$this->print_html .= $tag;
- if ( $inline_style = $this->print_inline_style( $handle, false ) )
+ if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
$this->print_html .= sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
+ }
+ $this->print_html .= $conditional_post;
} else {
+ echo $conditional_pre;
echo $tag;
$this->print_inline_style( $handle );
+ echo $conditional_post;
}
return true;
}
/**
- * @param string $handle
- * @param string $code
+ * Adds extra CSS styles to a registered stylesheet.
+ *
+ * @since 3.3.0
+ * @access public
+ *
+ * @param string $handle The style's registered handle.
+ * @param string $code String containing the CSS styles to be added.
+ * @return bool True on success, false on failure.
*/
public function add_inline_style( $handle, $code ) {
if ( ! $code ) {
}
/**
- * @param string $handle
- * @param bool $echo
- * @return bool
+ * Prints extra CSS styles of a registered stylesheet.
+ *
+ * @since 3.3.0
+ * @access public
+ *
+ * @param string $handle The style's registered handle.
+ * @param bool $echo Optional. Whether to echo the inline style instead of just returning it.
+ * Default true.
+ * @return string|bool False if no data exists, inline styles if `$echo` is true, true otherwise.
*/
public function print_inline_style( $handle, $echo = true ) {
$output = $this->get_data( $handle, 'after' );
}
/**
- * @param mixed $handles
- * @param bool $recursion
- * @param mixed $group
- * @return bool
+ * Determines style dependencies.
+ *
+ * @since 2.6.0
+ * @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 Group level: (int) level, (false) no groups.
+ * @return bool True on success, false on failure.
*/
public function all_deps( $handles, $recursion = false, $group = false ) {
- $r = parent::all_deps( $handles, $recursion );
- if ( !$recursion ) {
+ $r = parent::all_deps( $handles, $recursion, $group );
+ if ( ! $recursion ) {
/**
- * Filter the array of enqueued styles before processing for output.
+ * Filters the array of enqueued styles before processing for output.
*
* @since 2.6.0
*
}
/**
- * @param string $src
- * @param string $ver
- * @param string $handle
- * @return string
+ * Generates an enqueued style's fully-qualified URL.
+ *
+ * @since 2.6.0
+ * @access public
+ *
+ * @param string $src The source of the enqueued style.
+ * @param string $ver The version of the enqueued style.
+ * @param string $handle The style's registered handle.
+ * @return string Style's fully-qualified URL.
*/
public function _css_href( $src, $ver, $handle ) {
if ( !is_bool($src) && !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
$src = add_query_arg('ver', $ver, $src);
/**
- * Filter an enqueued style's fully-qualified URL.
+ * Filters an enqueued style's fully-qualified URL.
*
* @since 2.6.0
*
}
/**
- * @param string $src
- * @return bool
+ * Whether a handle's source is in a default directory.
+ *
+ * @since 2.8.0
+ * @access public
+ *
+ * @param string $src The source of the enqueued style.
+ * @return bool True if found, false if not.
*/
- public function in_default_dir($src) {
+ public function in_default_dir( $src ) {
if ( ! $this->default_dirs )
return true;
return false;
}
- public function do_footer_items() { // HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
+ /**
+ * Processes items and dependencies for the footer group.
+ *
+ * HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
+ *
+ * @since 3.3.0
+ * @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;
}
+ /**
+ * Resets class properties.
+ *
+ * @since 3.3.0
+ * @access public
+ */
public function reset() {
$this->do_concat = false;
$this->concat = '';
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