<?php
+/**
+ * BackPress Scripts enqueue.
+ *
+ * These classes were refactored from the WordPress WP_Scripts and WordPress
+ * script enqueue API.
+ *
+ * @package BackPress
+ * @since r16
+ */
+/**
+ * BackPress Scripts enqueue class.
+ *
+ * @package BackPress
+ * @uses WP_Dependencies
+ * @since r16
+ */
class WP_Scripts extends WP_Dependencies {
- var $base_url; // Full URL with trailing slash
- var $default_version;
+ public $base_url; // Full URL with trailing slash
+ public $content_url;
+ public $default_version;
+ public $in_footer = array();
+ public $concat = '';
+ public $concat_version = '';
+ public $do_concat = false;
+ public $print_html = '';
+ public $print_code = '';
+ public $ext_handles = '';
+ public $ext_version = '';
+ public $default_dirs;
- function __construct() {
+ public function __construct() {
+ $this->init();
+ add_action( 'init', array( $this, 'init' ), 0 );
+ }
+
+ public function init() {
+ /**
+ * Fires when the WP_Scripts instance is initialized.
+ *
+ * @since 2.6.0
+ *
+ * @param WP_Scripts &$this WP_Scripts instance, passed by reference.
+ */
do_action_ref_array( 'wp_default_scripts', array(&$this) );
}
/**
- * Prints scripts
+ * Prints scripts.
*
- * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
+ * Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
*
- * @param mixed handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts.
- * @return array Scripts that have been printed
+ * @param mixed $handles Optional. Scripts to be printed. (void) prints queue, (string) prints
+ * that script, (array of strings) prints those scripts. Default false.
+ * @param int $group Optional. If scripts were queued in groups prints this group number.
+ * Default false.
+ * @return array Scripts that have been printed.
*/
- function print_scripts( $handles = false ) {
- return $this->do_items( $handles );
+ public function print_scripts( $handles = false, $group = false ) {
+ return $this->do_items( $handles, $group );
}
- function print_scripts_l10n( $handle ) {
- if ( empty($this->registered[$handle]->extra['l10n']) || empty($this->registered[$handle]->extra['l10n'][0]) || !is_array($this->registered[$handle]->extra['l10n'][1]) )
- return false;
+ // Deprecated since 3.3, see print_extra_script()
+ public function print_scripts_l10n( $handle, $echo = true ) {
+ _deprecated_function( __FUNCTION__, '3.3', 'print_extra_script()' );
+ return $this->print_extra_script( $handle, $echo );
+ }
- $object_name = $this->registered[$handle]->extra['l10n'][0];
+ public function print_extra_script( $handle, $echo = true ) {
+ if ( !$output = $this->get_data( $handle, 'data' ) )
+ return;
- echo "<script type='text/javascript'>\n";
+ if ( !$echo )
+ return $output;
+
+ echo "<script type='text/javascript'>\n"; // CDATA and type='text/javascript' is not needed for HTML 5
echo "/* <![CDATA[ */\n";
- echo "\t$object_name = {\n";
- $eol = '';
- foreach ( $this->registered[$handle]->extra['l10n'][1] as $var => $val ) {
- echo "$eol\t\t$var: \"" . js_escape( $val ) . '"';
- $eol = ",\n";
- }
- echo "\n\t}\n";
+ echo "$output\n";
echo "/* ]]> */\n";
echo "</script>\n";
return true;
}
- function do_item( $handle ) {
+ public function do_item( $handle, $group = false ) {
if ( !parent::do_item($handle) )
return false;
- $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
+ if ( 0 === $group && $this->groups[$handle] > 0 ) {
+ $this->in_footer[] = $handle;
+ return false;
+ }
+
+ if ( false === $group && in_array($handle, $this->in_footer, true) )
+ $this->in_footer = array_diff( $this->in_footer, (array) $handle );
+
+ if ( null === $this->registered[$handle]->ver )
+ $ver = '';
+ else
+ $ver = $this->registered[$handle]->ver ? $this->registered[$handle]->ver : $this->default_version;
+
if ( isset($this->args[$handle]) )
- $ver .= '&' . $this->args[$handle];
+ $ver = $ver ? $ver . '&' . $this->args[$handle] : $this->args[$handle];
$src = $this->registered[$handle]->src;
- if ( !preg_match('|^https?://|', $src) && !preg_match('|^' . preg_quote(WP_CONTENT_URL) . '|', $src) ) {
+
+ if ( $this->do_concat ) {
+ /**
+ * Filter the script loader source.
+ *
+ * @since 2.2.0
+ *
+ * @param string $src Script loader source path.
+ * @param string $handle Script handle.
+ */
+ $srce = apply_filters( 'script_loader_src', $src, $handle );
+ if ( $this->in_default_dir($srce) ) {
+ $this->print_code .= $this->print_extra_script( $handle, false );
+ $this->concat .= "$handle,";
+ $this->concat_version .= "$handle$ver";
+ return true;
+ } else {
+ $this->ext_handles .= "$handle,";
+ $this->ext_version .= "$handle$ver";
+ }
+ }
+
+ $this->print_extra_script( $handle );
+ if ( !preg_match('|^(https?:)?//|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {
$src = $this->base_url . $src;
}
- $src = add_query_arg('ver', $ver, $src);
- $src = clean_url(apply_filters( 'script_loader_src', $src, $handle ));
+ if ( !empty($ver) )
+ $src = add_query_arg('ver', $ver, $src);
+
+ /** This filter is documented in wp-includes/class.wp-scripts.php */
+ $src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) );
+
+ if ( ! $src )
+ return true;
- $this->print_scripts_l10n( $handle );
+ $tag = "<script type='text/javascript' src='$src'></script>\n";
- echo "<script type='text/javascript' src='$src'></script>\n";
+ /**
+ * Filter the HTML script tag of an enqueued script.
+ *
+ * @since 4.1.0
+ *
+ * @param string $tag The `<script>` tag for the enqueued script.
+ * @param string $handle The script's registered handle.
+ * @param string $src The script's source URL.
+ */
+ $tag = apply_filters( 'script_loader_tag', $tag, $handle, $src );
+
+ if ( $this->do_concat ) {
+ $this->print_html .= $tag;
+ } else {
+ echo $tag;
+ }
return true;
}
/**
* Localizes a script
*
- * Localizes only if script has already been added
- *
- * @param string handle Script name
- * @param string object_name Name of JS object to hold l10n info
- * @param array l10n Array of JS var name => localized string
- * @return bool Successful localization
+ * Localizes only if the script has already been added
*/
- function localize( $handle, $object_name, $l10n ) {
- if ( !$object_name || !$l10n )
- return false;
- return $this->add_data( $handle, 'l10n', array( $object_name, $l10n ) );
+ public function localize( $handle, $object_name, $l10n ) {
+ if ( $handle === 'jquery' )
+ $handle = 'jquery-core';
+
+ if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present
+ $after = $l10n['l10n_print_after'];
+ unset($l10n['l10n_print_after']);
+ }
+
+ foreach ( (array) $l10n as $key => $value ) {
+ if ( !is_scalar($value) )
+ continue;
+
+ $l10n[$key] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8');
+ }
+
+ $script = "var $object_name = " . wp_json_encode( $l10n ) . ';';
+
+ if ( !empty($after) )
+ $script .= "\n$after;";
+
+ $data = $this->get_data( $handle, 'data' );
+
+ if ( !empty( $data ) )
+ $script = "$data\n$script";
+
+ return $this->add_data( $handle, 'data', $script );
}
- function all_deps( $handles, $recursion = false ) {
+ public function set_group( $handle, $recursion, $group = false ) {
+
+ if ( $this->registered[$handle]->args === 1 )
+ $grp = 1;
+ else
+ $grp = (int) $this->get_data( $handle, 'group' );
+
+ if ( false !== $group && $grp > $group )
+ $grp = $group;
+
+ return parent::set_group( $handle, $recursion, $grp );
+ }
+
+ public function all_deps( $handles, $recursion = false, $group = false ) {
$r = parent::all_deps( $handles, $recursion );
- if ( !$recursion )
+ if ( ! $recursion ) {
+ /**
+ * Filter the list of script dependencies left to print.
+ *
+ * @since 2.3.0
+ *
+ * @param array $to_do An array of script dependencies.
+ */
$this->to_do = apply_filters( 'print_scripts_array', $this->to_do );
+ }
return $r;
}
+
+ public function do_head_items() {
+ $this->do_items(false, 0);
+ return $this->done;
+ }
+
+ public function do_footer_items() {
+ $this->do_items(false, 1);
+ return $this->done;
+ }
+
+ public function in_default_dir( $src ) {
+ if ( ! $this->default_dirs ) {
+ return true;
+ }
+
+ if ( 0 === strpos( $src, '/' . WPINC . '/js/l10n' ) ) {
+ return false;
+ }
+
+ foreach ( (array) $this->default_dirs as $test ) {
+ if ( 0 === strpos( $src, $test ) ) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ public function reset() {
+ $this->do_concat = false;
+ $this->print_code = '';
+ $this->concat = '';
+ $this->concat_version = '';
+ $this->print_html = '';
+ $this->ext_version = '';
+ $this->ext_handles = '';
+ }
}
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