#193274 by dmitrig01 and quicksketch: send submit button data with AHAH submissions

includes/form.inc

@@ -1614,7 +1614,6 @@ function expand_radios($element) {
  */
 function form_expand_ahah($element) {
   static $js_added = array();
-
   // Add a reasonable default event handler if none specified.
   if (isset($element['#ahah']['path']) && !isset($element['#ahah']['event'])) {
     switch ($element['#type']) {
@@ -1643,13 +1642,14 @@ function form_expand_ahah($element) {
     drupal_add_js('misc/ahah.js');
 
     $ahah_binding = array(
-      'url'   => url($element['#ahah']['path']),
-      'event' => $element['#ahah']['event'],
-      'wrapper' => empty($element['#ahah']['wrapper']) ? NULL : $element['#ahah']['wrapper'],
+      'url'      => url($element['#ahah']['path']),
+      'event'    => $element['#ahah']['event'],
+      'wrapper'  => empty($element['#ahah']['wrapper']) ? NULL : $element['#ahah']['wrapper'],
       'selector' => empty($element['#ahah']['selector']) ? '#'. $element['#id'] : $element['#ahah']['selector'],
       'effect'   => empty($element['#ahah']['effect']) ? 'none' : $element['#ahah']['effect'],
       'method'   => empty($element['#ahah']['method']) ? 'replace' : $element['#ahah']['method'],
       'progress' => empty($element['#ahah']['progress']) ? array('type' => 'throbber') : $element['#ahah']['progress'],
+      'button'   => $element['#type'] == 'submit' ? array($element['#name'] => $element['#value']) : FALSE,
     );
 
     // Convert a simple #ahah[progress] type string into an array.

misc/ahah.js

@@ -43,6 +43,8 @@ Drupal.ahah = function(base, element_settings) {
   this.effect = element_settings.effect;
   this.method = element_settings.method;
   this.progress = element_settings.progress;
+  this.button = element_settings.button || { };
+
   if (this.effect == 'none') {
     this.showEffect = 'show';
     this.hideEffect = 'hide';
@@ -70,6 +72,7 @@ Drupal.ahah = function(base, element_settings) {
   var ahah = this;
   var options = {
     url: ahah.url,
+    data: ahah.button,
     beforeSubmit: function(form_values, element_settings, options) {
       return ahah.beforeSubmit(form_values, element_settings, options);
     },