web/wp-includes/functions.wp-scripts.php
changeset 1 0d28b7c10758
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-includes/functions.wp-scripts.php	Fri Mar 12 13:29:04 2010 +0000
@@ -0,0 +1,128 @@
+<?php
+/**
+ * BackPress script procedural API.
+ *
+ * @package BackPress
+ * @since r16
+ */
+
+/**
+ * Prints script tags in document head.
+ *
+ * Called by admin-header.php and by wp_head hook. Since it is called by wp_head
+ * on every page load, the function does not instantiate the WP_Scripts object
+ * unless script names are explicitly passed. Does make use of already
+ * instantiated $wp_scripts if present. Use provided wp_print_scripts hook to
+ * register/enqueue new scripts.
+ *
+ * @since r16
+ * @see WP_Dependencies::print_scripts()
+ */
+function wp_print_scripts( $handles = false ) {
+	do_action( 'wp_print_scripts' );
+	if ( '' === $handles ) // for wp_head
+		$handles = false;
+
+	global $wp_scripts;
+	if ( !is_a($wp_scripts, 'WP_Scripts') ) {
+		if ( !$handles )
+			return array(); // No need to instantiate if nothing's there.
+		else
+			$wp_scripts = new WP_Scripts();
+	}
+
+	return $wp_scripts->do_items( $handles );
+}
+
+/**
+ * Register new JavaScript file.
+ *
+ * @since r16
+ * @see WP_Dependencies::add() For parameter information.
+ */
+function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_footer = false ) {
+	global $wp_scripts;
+	if ( !is_a($wp_scripts, 'WP_Scripts') )
+		$wp_scripts = new WP_Scripts();
+
+	$wp_scripts->add( $handle, $src, $deps, $ver );
+	if ( $in_footer )
+		$wp_scripts->add_data( $handle, 'group', 1 );
+}
+
+/**
+ * Localizes a script.
+ *
+ * Localizes only if script has already been added.
+ *
+ * @since r16
+ * @see WP_Script::localize()
+ */
+function wp_localize_script( $handle, $object_name, $l10n ) {
+	global $wp_scripts;
+	if ( !is_a($wp_scripts, 'WP_Scripts') )
+		return false;
+
+	return $wp_scripts->localize( $handle, $object_name, $l10n );
+}
+
+/**
+ * Remove a registered script.
+ *
+ * @since r16
+ * @see WP_Scripts::remove() For parameter information.
+ */
+function wp_deregister_script( $handle ) {
+	global $wp_scripts;
+	if ( !is_a($wp_scripts, 'WP_Scripts') )
+		$wp_scripts = new WP_Scripts();
+
+	$wp_scripts->remove( $handle );
+}
+
+/**
+ * Enqueues script.
+ *
+ * Registers the script if src provided (does NOT overwrite) and enqueues.
+ *
+ * @since r16
+ * @see WP_Script::add(), WP_Script::enqueue()
+*/
+function wp_enqueue_script( $handle, $src = false, $deps = array(), $ver = false, $in_footer = false ) {
+	global $wp_scripts;
+	if ( !is_a($wp_scripts, 'WP_Scripts') )
+		$wp_scripts = new WP_Scripts();
+
+	if ( $src ) {
+		$_handle = explode('?', $handle);
+		$wp_scripts->add( $_handle[0], $src, $deps, $ver );
+		if ( $in_footer )
+			$wp_scripts->add_data( $_handle[0], 'group', 1 );
+	}
+	$wp_scripts->enqueue( $handle );
+}
+
+/**
+ * Check whether script has been added to WordPress Scripts.
+ *
+ * The values for list defaults to 'queue', which is the same as enqueue for
+ * scripts.
+ *
+ * @since WP unknown; BP unknown
+ *
+ * @param string $handle Handle used to add script.
+ * @param string $list Optional, defaults to 'queue'. Others values are 'registered', 'queue', 'done', 'to_do'
+ * @return bool
+ */
+function wp_script_is( $handle, $list = 'queue' ) {
+	global $wp_scripts;
+	if ( !is_a($wp_scripts, 'WP_Scripts') )
+		$wp_scripts = new WP_Scripts();
+
+	$query = $wp_scripts->query( $handle, $list );
+
+	if ( is_object( $query ) )
+		return true;
+
+	return $query;
+}