236 lines
7.6 KiB
PHP
236 lines
7.6 KiB
PHP
<?php
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class WP_Scripts {
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var $scripts = array();
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var $queue = array();
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var $printed = array();
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var $args = array();
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function WP_Scripts() {
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$this->default_scripts();
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}
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function default_scripts() {
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$this->add( 'dbx', '/wp-includes/js/dbx.js', false, '2.02' );
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$this->add( 'fat', '/wp-includes/js/fat.js', false, '1.0-RC1_3660' );
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$this->add( 'sack', '/wp-includes/js/tw-sack.js', false, '1.6.1' );
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$this->add( 'quicktags', '/wp-includes/js/quicktags.js', false, '3517' );
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$this->add( 'colorpicker', '/wp-includes/js/colorpicker.js', false, '3517' );
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$this->add( 'tiny_mce', '/wp-includes/js/tinymce/tiny_mce_gzip.php', false, '04162006' );
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$this->add( 'wp_tiny_mce', '/wp-includes/js/tinymce/tiny_mce_config.php', array('tiny_mce'), '04162006' );
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if ( is_admin() ) {
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$this->add( 'dbx-admin-key', '/wp-admin/dbx-admin-key-js.php', array('dbx'), '3651' );
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$this->add( 'listman', '/wp-admin/list-manipulation-js.php', array('sack', 'fat'), '3733' );
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$this->add( 'ajaxcat', '/wp-admin/cat-js.php', array('listman'), '3684' );
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$this->add( 'admin-categories', '/wp-admin/categories.js', array('listman'), '3684' );
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$this->add( 'admin-custom-fields', '/wp-admin/custom-fields.js', array('listman'), '3733' );
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$this->add( 'admin-comments', '/wp-admin/edit-comments.js', array('listman'), '3736' );
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$this->add( 'admin-users', '/wp-admin/users.js', array('listman'), '3684' );
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$this->add( 'xfn', '/wp-admin/xfn.js', false, '3517' );
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}
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}
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/**
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* Prints script tags
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*
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* Prints the scripts passed to it or the print queue. Also prints all necessary dependencies.
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*
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* @param mixed handles (optional) Scripts to be printed. (void) prints queue, (string) prints that script, (array of strings) prints those scripts.
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* @return array Scripts that have been printed
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*/
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function print_scripts( $handles = false ) {
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// Print the queue if nothing is passed. If a string is passed, print that script. If an array is passed, print those scripts.
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$handles = false === $handles ? $this->queue : (array) $handles;
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$handles = $this->all_deps( $handles );
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$this->_print_scripts( $handles );
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return $this->printed;
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}
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/**
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* Internally used helper function for printing script tags
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*
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* @param array handles Hierarchical array of scripts to be printed
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* @see WP_Scripts::all_deps()
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*/
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function _print_scripts( $handles ) {
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global $wp_db_version;
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foreach( array_keys($handles) as $handle ) {
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if ( !$handles[$handle] )
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return;
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elseif ( is_array($handles[$handle]) )
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$this->_print_scripts( $handles[$handle] );
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if ( !in_array($handle, $this->printed) && isset($this->scripts[$handle]) ) {
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$ver = $this->scripts[$handle]->ver ? $this->scripts[$handle]->ver : $wp_db_version;
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if ( isset($this->args[$handle]) )
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$ver .= '&' . $this->args[$handle];
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$src = 0 === strpos($this->scripts[$handle]->src, 'http://') ? $this->scripts[$handle]->src : get_settings( 'siteurl' ) . $this->scripts[$handle]->src;
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echo "<script type='text/javascript' src='$src?ver=$ver'></script>\n";
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$this->printed[] = $handle;
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}
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}
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}
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/**
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* Determines dependencies of scripts
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*
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* Recursively builds hierarchical array of script dependencies. Does NOT catch infinite loops.
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*
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* @param mixed handles Accepts (string) script name or (array of strings) script names
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* @param bool recursion Used internally when function calls itself
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* @return array Hierarchical array of dependencies
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*/
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function all_deps( $handles, $recursion = false ) {
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if ( ! $handles = (array) $handles )
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return array();
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$return = array();
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foreach ( $handles as $handle ) {
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$handle = explode('?', $handle);
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if ( isset($handle[1]) )
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$this->args[$handle[0]] = $handle[1];
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$handle = $handle[0];
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if ( is_null($return[$handle]) ) // Prime the return array with $handles
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$return[$handle] = true;
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if ( $this->scripts[$handle]->deps ) {
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if ( false !== $return[$handle] && array_diff($this->scripts[$handle]->deps, array_keys($this->scripts)) )
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$return[$handle] = false; // Script required deps which don't exist
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else
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$return[$handle] = $this->all_deps( $this->scripts[$handle]->deps, true ); // Build the hierarchy
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}
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if ( $recursion && false === $return[$handle] )
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return false; // Cut the branch
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}
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return $return;
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}
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/**
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* Adds script
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*
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* Adds the script only if no script of that name already exists
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*
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* @param string handle Script name
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* @param string src Script url
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* @param array deps (optional) Array of script names on which this script depends
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* @param string ver (optional) Script version (used for cache busting)
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* @return array Hierarchical array of dependencies
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*/
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function add( $handle, $src, $deps = array(), $ver = false ) {
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if ( isset($this->scripts[$handle]) )
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return false;
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$this->scripts[$handle] = new _WP_Script( $handle, $src, $deps, $ver );
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return true;
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}
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function remove( $handles ) {
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foreach ( (array) $handles as $handle )
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unset($this->scripts[$handle]);
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}
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function enqueue( $handles ) {
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foreach ( (array) $handles as $handle ) {
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$handle = explode('?', $handle);
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if ( !in_array($handle[0], $this->queue) && isset($this->scripts[$handle[0]]) ) {
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$this->queue[] = $handle[0];
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if ( isset($handle[1]) )
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$this->args[$handle[0]] = $handle[1];
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}
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}
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}
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function dequeue( $handles ) {
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foreach ( (array) $handles as $handle )
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unset( $this->queue[$handle] );
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}
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function query( $handle, $list = 'scripts' ) { // scripts, queue, or printed
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switch ( $list ) :
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case 'scripts':
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if ( isset($this->scripts[$handle]) )
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return $this->scripts[$handle];
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break;
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default:
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if ( in_array($handle, $this->$list) )
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return true;
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break;
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endswitch;
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return false;
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}
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}
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class _WP_Script {
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var $handle;
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var $src;
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var $deps = array();
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var $ver = false;
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var $args = false;
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function _WP_Script() {
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@list($this->handle, $this->src, $this->deps, $this->ver) = func_get_args();
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if ( !is_array($this->deps) )
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$this->deps = array();
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if ( !$this->ver )
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$this->ver = false;
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}
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}
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/**
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* Prints script tags in document head
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*
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* Called by admin-header.php and by wp_head hook. Since it is called by wp_head on every page load,
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* the function does not instantiate the WP_Scripts object unless script names are explicitly passed.
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* Does make use of already instantiated $wp_scripts if present.
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* Use provided wp_print_scripts hook to register/enqueue new scripts.
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*
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* @see WP_Scripts::print_scripts()
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*/
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function wp_print_scripts( $handles = false ) {
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do_action( 'wp_print_scripts' );
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global $wp_scripts;
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if ( !is_a($wp_scripts, 'WP_Scripts') ) {
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if ( !$handles )
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return array(); // No need to instantiate if nothing's there.
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else
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$wp_scripts = new WP_Scripts();
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}
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return $wp_scripts->print_scripts( $handles );
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}
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function wp_register_script( $handle, $src, $deps = array(), $ver = false ) {
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global $wp_scripts;
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if ( !is_a($wp_scripts, 'WP_Scripts') )
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$wp_scripts = new WP_Scripts();
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$wp_scripts->add( $handle, $src, $deps, $ver );
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}
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function wp_deregister_script( $handle ) {
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global $wp_scripts;
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if ( !is_a($wp_scripts, 'WP_Scripts') )
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$wp_scripts = new WP_Scripts();
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$wp_scripts->remove( $handle );
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}
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/**
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* Equeues script
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*
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* Registers the script if src provided (does NOT overwrite) and enqueues.
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*
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* @see WP_Script::add(), WP_Script::enqueue()
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*/
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function wp_enqueue_script( $handle, $src = false, $deps = array(), $ver = false ) {
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global $wp_scripts;
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if ( !is_a($wp_scripts, 'WP_Scripts') )
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$wp_scripts = new WP_Scripts();
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if ( $src ) {
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$_handle = explode('?', $handle);
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$wp_scripts->add( $_handle[0], $src, $deps, $ver );
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}
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$wp_scripts->enqueue( $handle );
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}
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?>
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