<?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 $content_url;

	var $default_version;

	var $in_footer = array();

	var $concat = '';

	var $concat_version = '';

	var $do_concat = false;

	var $print_html = '';

	var $print_code = '';

	var $ext_handles = '';

	var $ext_version = '';

	var $default_dirs;

	function __construct() {

		do_action_ref_array( 'wp_default_scripts', array(&$this) );

	}

	/**

	 * Prints scripts

	 *

	 *

	 * @return array Scripts that have been printed

	 */

	function print_scripts( $handles = false, $group = false ) {

		return $this->do_items( $handles, $group );

	}

	function print_scripts_l10n( $handle, $echo = true ) {

	}

	function do_item( $handle, $group = false ) {

		if ( !parent::do_item($handle) )

			return false;

		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 ( isset($this->args[$handle]) )

		$src = $this->registered[$handle]->src;

		if ( $this->do_concat ) {

			$srce = apply_filters( 'script_loader_src', $src, $handle );

			if ( $this->in_default_dir($srce) ) {

				$this->concat .= "$handle,";

				$this->concat_version .= "$handle$ver";

				return true;

			} else {

				$this->ext_handles .= "$handle,";

				$this->ext_version .= "$handle$ver";

			}

		}

		if ( !preg_match('|^https?://|', $src) && ! ( $this->content_url && 0 === strpos($src, $this->content_url) ) ) {

			$src = $this->base_url . $src;

		}

		if ( $this->do_concat )

			$this->print_html .= "<script type='text/javascript' src='$src'></script>\n";

		else

			echo "<script type='text/javascript' src='$src'></script>\n";

		return true;

	}

	/**

	 * Localizes a script

	 *

	 */

	function localize( $handle, $object_name, $l10n ) {

	}

	function set_group( $handle, $recursion, $group = false ) {

		if ( false !== $group && $grp > $group )

			$grp = $group;

		return parent::set_group( $handle, $recursion, $grp );

	}

	function all_deps( $handles, $recursion = false, $group = false ) {

		$r = parent::all_deps( $handles, $recursion );

		if ( !$recursion )

			$this->to_do = apply_filters( 'print_scripts_array', $this->to_do );

		return $r;

	}

	function do_head_items() {

		$this->do_items(false, 0);

		return $this->done;

	}

	function do_footer_items() {

		return $this->done;

	}

	function in_default_dir($src) {

		if ( ! $this->default_dirs )

			return true;

		foreach ( (array) $this->default_dirs as $test ) {

			if ( 0 === strpos($src, $test) )

				return true;

		}

		return false;

	}

	function reset() {

		$this->do_concat = false;

		$this->print_code = '';

		$this->concat = '';

		$this->concat_version = '';

		$this->print_html = '';

		$this->ext_version = '';

		$this->ext_handles = '';

	}

}