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.
88 * @param string The link tag for the enqueued style.
89 * @param string $handle The style's registered handle.
91 $tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle );
92 if ( 'rtl' === $this->text_direction && isset($obj->extra['rtl']) && $obj->extra['rtl'] ) {
93 if ( is_bool( $obj->extra['rtl'] ) || 'replace' === $obj->extra['rtl'] ) {
94 $suffix = isset( $obj->extra['suffix'] ) ? $obj->extra['suffix'] : '';
95 $rtl_href = str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $this->_css_href( $obj->src , $ver, "$handle-rtl" ));
97 $rtl_href = $this->_css_href( $obj->extra['rtl'], $ver, "$handle-rtl" );
100 /** This filter is documented in wp-includes/class.wp-styles.php */
101 $rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle );
103 if ( $obj->extra['rtl'] === 'replace' ) {
110 if ( isset($obj->extra['conditional']) && $obj->extra['conditional'] ) {
111 $tag = "<!--[if {$obj->extra['conditional']}]>\n" . $tag . "<![endif]-->\n";
114 if ( $this->do_concat ) {
115 $this->print_html .= $tag;
116 if ( $inline_style = $this->print_inline_style( $handle, false ) )
117 $this->print_html .= sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
120 $this->print_inline_style( $handle );
127 * @param string $handle
128 * @param string $code
130 public function add_inline_style( $handle, $code ) {
135 $after = $this->get_data( $handle, 'after' );
142 return $this->add_data( $handle, 'after', $after );
146 * @param string $handle
150 public function print_inline_style( $handle, $echo = true ) {
151 $output = $this->get_data( $handle, 'after' );
153 if ( empty( $output ) ) {
157 $output = implode( "\n", $output );
163 printf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $output );
169 * @param mixed $handles
170 * @param bool $recursion
171 * @param mixed $group
174 public function all_deps( $handles, $recursion = false, $group = false ) {
175 $r = parent::all_deps( $handles, $recursion );
178 * Filter the array of enqueued styles before processing for output.
182 * @param array $to_do The list of enqueued styles about to be processed.
184 $this->to_do = apply_filters( 'print_styles_array', $this->to_do );
192 * @param string $handle
195 public function _css_href( $src, $ver, $handle ) {
196 if ( !is_bool($src) && !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
197 $src = $this->base_url . $src;
201 $src = add_query_arg('ver', $ver, $src);
204 * Filter an enqueued style's fully-qualified URL.
208 * @param string $src The source URL of the enqueued style.
209 * @param string $handle The style's registered handle.
211 $src = apply_filters( 'style_loader_src', $src, $handle );
212 return esc_url( $src );
219 public function in_default_dir($src) {
220 if ( ! $this->default_dirs )
223 foreach ( (array) $this->default_dirs as $test ) {
224 if ( 0 === strpos($src, $test) )
230 public function do_footer_items() { // HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
231 $this->do_items(false, 1);
235 public function reset() {
236 $this->do_concat = false;
238 $this->concat_version = '';
239 $this->print_html = '';