New take at implementing autofill using the editor client API

webkit/glue/webframe_impl.cc

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 268 matching lines @@
     inspected_node_(NULL),
     active_tickmark_frame_(NULL),
     active_tickmark_(kNoTickmark),
     locating_active_rect_(false),
     last_active_range_(NULL),
     last_match_count_(-1),
     total_matchcount_(-1),
     frames_scoping_count_(-1),
     scoping_complete_(false),
     next_invalidate_after_(0),
-    printing_(false),
-    form_autocomplete_listener_(NULL) {
+    printing_(false) {
   StatsCounter(kWebFrameActiveCount).Increment();
   live_object_count_++;
 }
 
 WebFrameImpl::~WebFrameImpl() {
   StatsCounter(kWebFrameActiveCount).Decrement();
   live_object_count_--;
 
   CancelPendingScopingEffort();
+  ClearPasswordListeners();
 }
 
 // WebFrame -------------------------------------------------------------------
 
 void WebFrameImpl::InitMainFrame(WebViewImpl* webview_impl) {
   webview_impl_ = webview_impl;
 
   RefPtr<Frame> frame =
       Frame::create(webview_impl_->page(), 0, &frame_loader_client_);
   frame_ = frame.get();
@@ skipping 1556 matching lines @@
     return WebCore::FrameLoadTypeReloadAllowingStaleData ==
            loader->policyLoadType();
   }
   return false;
 }
 
 int WebFrameImpl::PendingFrameUnloadEventCount() const {
   return frame()->eventHandler()->pendingFrameUnloadEventCount();
 }
 
-webkit_glue::AutocompleteBodyListener* WebFrameImpl::GetAutocompleteListener() {
-  if (!form_autocomplete_listener_) {
-    form_autocomplete_listener_ =
-      adoptRef(new webkit_glue::AutocompleteBodyListener(frame()));
-  }
-  return form_autocomplete_listener_.get();
+void WebFrameImpl::RegisterPasswordListener(
+    PassRefPtr<WebCore::HTMLInputElement> input_element,
+    webkit_glue::PasswordAutocompleteListener* listener) {
+  RefPtr<WebCore::HTMLInputElement> element = input_element;
+  DCHECK(password_listeners_.find(element) == password_listeners_.end());
+  password_listeners_.set(element, listener);
 }
 
-void WebFrameImpl::ClearAutocompleteListener() {
-  form_autocomplete_listener_ = NULL;
+webkit_glue::PasswordAutocompleteListener* WebFrameImpl::GetPasswordListener(
+    WebCore::HTMLInputElement* input_element) {
+  return password_listeners_.get(input_element);
 }
+
+void WebFrameImpl::ClearPasswordListeners() {
+  for (PasswordListenerMap::iterator iter = password_listeners_.begin();
+       iter != password_listeners_.end(); ++iter) {
+    delete iter->second;
+  }
+  password_listeners_.clear();
+}
+