-/* Private */
-function _wfInvokeInternalGoop($event, $hook) {
- $object = NULL;
- $method = NULL;
- $func = NULL;
- $data = NULL;
- $have_data = false;
-
- if (is_array($hook)) {
- if (count($hook) < 1) {
- throw new MWException("Empty array in hooks for " . $event . "\n");
- } else if (is_object($hook[0])) {
- $object = $hook[0];
- if (count($hook) < 2) {
- $method = "on" . $event;
- } else {
- $method = $hook[1];
- if (count($hook) > 2) {
- $data = $hook[2];
- $have_data = true;
- }
- }
- } else if (is_string($hook[0])) {
- $func = $hook[0];
- if (count($hook) > 1) {
- $data = $hook[1];
- $have_data = true;
- }
- } else {
- var_dump( $wgHooks );
- throw new MWException("Unknown datatype in hooks for " . $event . "\n");
- }
- } else if (is_string($hook)) { # functions look like strings, too
- $func = $hook;
- } else if (is_object($hook)) {
- $object = $hook;
- $method = "on" . $event;
- } else {
- throw new MWException("Unknown datatype in hooks for " . $event . "\n");
- }
-
- if ( isset( $object ) ) {
- $func = get_class( $object ) . '::' . $method;
- $callback = array( $object, $method );
- } elseif ( false !== ( $pos = strpos( $func, '::' ) ) ) {
- $callback = array( substr( $func, 0, $pos ), substr( $func, $pos + 2 ) );
- } else {
- $callback = $func;
- }
-
- return array($callback, $func, $data);
-}
-
-/* Return a string describing the hook for debugging purposes. */
-function wfFormatInvocation($event, $hook, $args = array()) {
- list($callback, $func, $data) = _wfInvokeInternalGoop($event, $hook, $args);
-
- if( is_array( $callback ) ) {
- if( is_object( $callback[0] ) ) {
- $prettyClass = get_class( $callback[0] );
- } else {
- $prettyClass = strval( $callback[0] );
- }
- $prettyFunc = $prettyClass . '::' . strval( $callback[1] );
- } else {
- $prettyFunc = strval( $callback );
- }
- return $prettyFunc;
-}
-
-
-/*
- * Invoke a function dynamically.
- * $event is the name of the invocation; this is used if the hook specifies
- * an object but no method name; 'on$event' is then invoked on the object.
- * $hook can be: a function, an object, an array of $function and $data,
- * an array of just a function, an array of object and method, or an
- * array of object, method, and data.
- * If arguments are provided both as part of the hook itself, and when
- * calling wfCallFancyCallback, the two arrays are merged.
- */
-function wfInvoke($event, $hook, $args = array()) {
- list($callback, $func, $data) = _wfInvokeInternalGoop($event, $hook, $args);
-
- /* We put the first data element on, if needed. */
- if ($data) {
- $hook_args = array_merge(array($data), $args);
- } else {
- $hook_args = $args;
- }
-
- // Run autoloader (workaround for call_user_func_array bug)
- is_callable( $callback );
-
- /* Call the hook. */
- wfProfileIn( $func );
- $retval = call_user_func_array( $callback, $hook_args );
- wfProfileOut( $func );
- return $retval;
-}
-