3 * BackPress Styles enqueue.
5 * These classes were refactored from the WordPress WP_Scripts and WordPress
13 * BackPress Styles enqueue class.
16 * @uses WP_Dependencies
19 class WP_Styles extends WP_Dependencies {
22 public $default_version;
23 public $text_direction = 'ltr';
25 public $concat_version = '';
26 public $do_concat = false;
27 public $print_html = '';
28 public $print_code = '';
31 public function __construct() {
33 * Fires when the WP_Styles instance is initialized.
37 * @param WP_Styles &$this WP_Styles instance, passed by reference.
39 do_action_ref_array( 'wp_default_styles', array(&$this) );
43 * @param string $handle
46 public function do_item( $handle ) {
47 if ( !parent::do_item($handle) )
50 $obj = $this->registered[$handle];
51 if ( null === $obj->ver )
54 $ver = $obj->ver ? $obj->ver : $this->default_version;
56 if ( isset($this->args[$handle]) )
57 $ver = $ver ? $ver . '&' . $this->args[$handle] : $this->args[$handle];
59 if ( $this->do_concat ) {
60 if ( $this->in_default_dir($obj->src) && !isset($obj->extra['conditional']) && !isset($obj->extra['alt']) ) {
61 $this->concat .= "$handle,";
62 $this->concat_version .= "$handle$ver";
64 $this->print_code .= $this->print_inline_style( $handle, false );
70 if ( isset($obj->args) )
71 $media = esc_attr( $obj->args );
75 $href = $this->_css_href( $obj->src, $ver, $handle );
76 if ( empty( $href ) ) {
77 // Turns out there is nothing to print.
80 $rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
81 $title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';
84 * Filter the HTML link tag of an enqueued style.
87 * @since 4.3.0 Introduced the `$href` parameter.
89 * @param string $html The link tag for the enqueued style.
90 * @param string $handle The style's registered handle.
91 * @param string $href The stylesheet's source URL.
93 $tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle, $href );
94 if ( 'rtl' === $this->text_direction && isset($obj->extra['rtl']) && $obj->extra['rtl'] ) {
95 if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) {
96 $suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : '';
97 $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $obj->src , $ver, "$handle-rtl" ));
99 $rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
102 /** This filter is documented in wp-includes/class.wp-styles.php */
103 $rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle, $rtl_href );
105 if ( $obj->extra['rtl'] === 'replace' ) {
112 $conditional_pre = $conditional_post = '';
113 if ( isset( $obj->extra['conditional'] ) && $obj->extra['conditional'] ) {
114 $conditional_pre = "<!--[if {$obj->extra['conditional']}]>\n";
115 $conditional_post = "<![endif]-->\n";
118 if ( $this->do_concat ) {
119 $this->print_html .= $conditional_pre;
120 $this->print_html .= $tag;
121 if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
122 $this->print_html .= sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
124 $this->print_html .= $conditional_post;
126 echo $conditional_pre;
128 $this->print_inline_style( $handle );
129 echo $conditional_post;
136 * @param string $handle
137 * @param string $code
139 public function add_inline_style( $handle, $code ) {
144 $after = $this->get_data( $handle, 'after' );
151 return $this->add_data( $handle, 'after', $after );
155 * @param string $handle
159 public function print_inline_style( $handle, $echo = true ) {
160 $output = $this->get_data( $handle, 'after' );
162 if ( empty( $output ) ) {
166 $output = implode( "\n", $output );
172 printf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $output );
178 * @param mixed $handles
179 * @param bool $recursion
180 * @param mixed $group
183 public function all_deps( $handles, $recursion = false, $group = false ) {
184 $r = parent::all_deps( $handles, $recursion );
187 * Filter the array of enqueued styles before processing for output.
191 * @param array $to_do The list of enqueued styles about to be processed.
193 $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
201 * @param string $handle
204 public function _css_href( $src, $ver, $handle ) {
205 if ( !is_bool($src) && !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
206 $src = $this->base_url . $src;
210 $src = add_query_arg('ver', $ver, $src);
213 * Filter an enqueued style's fully-qualified URL.
217 * @param string $src The source URL of the enqueued style.
218 * @param string $handle The style's registered handle.
220 $src = apply_filters( 'style_loader_src', $src, $handle );
221 return esc_url( $src );
228 public function in_default_dir($src) {
229 if ( ! $this->default_dirs )
232 foreach ( (array) $this->default_dirs as $test ) {
233 if ( 0 === strpos($src, $test) )
242 public function do_footer_items() { // HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
243 $this->do_items(false, 1);
250 public function reset() {
251 $this->do_concat = false;
253 $this->concat_version = '';
254 $this->print_html = '';