257 lines
6.5 KiB
PHP
257 lines
6.5 KiB
PHP
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<?php
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/**
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* BackPress Styles enqueue.
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*
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* These classes were refactored from the WordPress WP_Scripts and WordPress
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* script enqueue API.
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*
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* @package BackPress
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* @since r74
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*/
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/**
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* BackPress Styles enqueue class.
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*
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* @package BackPress
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* @uses WP_Dependencies
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* @since r74
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*/
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class WP_Styles extends WP_Dependencies {
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public $base_url;
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public $content_url;
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public $default_version;
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public $text_direction = 'ltr';
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public $concat = '';
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public $concat_version = '';
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public $do_concat = false;
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public $print_html = '';
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public $print_code = '';
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public $default_dirs;
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public function __construct() {
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/**
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* Fires when the WP_Styles instance is initialized.
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*
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* @since 2.6.0
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*
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* @param WP_Styles &$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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* @param string $handle
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* @return bool
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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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$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 : $this->default_version;
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if ( isset($this->args[$handle]) )
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$ver = $ver ? $ver . '&' . $this->args[$handle] : $this->args[$handle];
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if ( $this->do_concat ) {
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if ( $this->in_default_dir($obj->src) && !isset($obj->extra['conditional']) && !isset($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 .= $this->print_inline_style( $handle, false );
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return true;
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}
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}
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if ( isset($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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$href = $this->_css_href( $obj->src, $ver, $handle );
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if ( empty( $href ) ) {
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// Turns out there is nothing to print.
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return true;
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}
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$rel = isset($obj->extra['alt']) && $obj->extra['alt'] ? 'alternate stylesheet' : 'stylesheet';
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$title = isset($obj->extra['title']) ? "title='" . esc_attr( $obj->extra['title'] ) . "'" : '';
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/**
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* Filter the HTML link tag of an enqueued style.
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*
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* @since 2.6.0
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* @since 4.3.0 Introduced the `$href` parameter.
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*
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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 $href The stylesheet's source URL.
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*/
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$tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-css' $title href='$href' type='text/css' media='$media' />\n", $handle, $href );
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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( $obj->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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/** This filter is documented in wp-includes/class.wp-styles.php */
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$rtl_tag = apply_filters( 'style_loader_tag', "<link rel='$rel' id='$handle-rtl-css' $title href='$rtl_href' type='text/css' media='$media' />\n", $handle, $rtl_href );
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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 .= $rtl_tag;
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}
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}
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$conditional_pre = $conditional_post = '';
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if ( isset( $obj->extra['conditional'] ) && $obj->extra['conditional'] ) {
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$conditional_pre = "<!--[if {$obj->extra['conditional']}]>\n";
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$conditional_post = "<![endif]-->\n";
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}
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if ( $this->do_concat ) {
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$this->print_html .= $conditional_pre;
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$this->print_html .= $tag;
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if ( $inline_style = $this->print_inline_style( $handle, false ) ) {
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$this->print_html .= sprintf( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $inline_style );
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}
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$this->print_html .= $conditional_post;
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} else {
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echo $conditional_pre;
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echo $tag;
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$this->print_inline_style( $handle );
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echo $conditional_post;
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}
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return true;
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}
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/**
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* @param string $handle
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* @param string $code
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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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* @param string $handle
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* @param bool $echo
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* @return bool
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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( "<style id='%s-inline-css' type='text/css'>\n%s\n</style>\n", esc_attr( $handle ), $output );
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return true;
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}
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/**
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* @param mixed $handles
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* @param bool $recursion
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* @param mixed $group
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* @return bool
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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, $recursion );
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if ( !$recursion ) {
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/**
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* Filter 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 array $to_do The list of enqueued styles about to be processed.
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*/
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$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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* @param string $src
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* @param string $ver
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* @param string $handle
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* @return string
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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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* Filter 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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* @param string $src
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* @return bool
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*/
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public function in_default_dir($src) {
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if ( ! $this->default_dirs )
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return true;
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foreach ( (array) $this->default_dirs as $test ) {
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if ( 0 === strpos($src, $test) )
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return true;
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}
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return false;
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}
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/**
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* @return array
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*/
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public function do_footer_items() { // HTML 5 allows styles in the body, grab late enqueued items and output them in the footer.
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$this->do_items(false, 1);
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return $this->done;
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}
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/**
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* @access public
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*/
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public function reset() {
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$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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