Views: Rebuild wrench menu if error is added or removed

chrome/browser/ui/views/wrench_menu.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/wrench_menu.h"
 
 #include <cmath>
 
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/views/bookmarks/bookmark_menu_delegate.h"
+#include "chrome/common/chrome_notification_types.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/user_metrics.h"
 #include "content/common/content_notification_types.h"
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
 #include "content/common/notification_source.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "third_party/skia/include/core/SkPaint.h"
@@ skipping 534 matching lines @@
 
 // WrenchMenu ------------------------------------------------------------------
 
 WrenchMenu::WrenchMenu(Browser* browser)
     : root_(NULL),
       browser_(browser),
       selected_menu_model_(NULL),
       selected_index_(0),
       bookmark_menu_(NULL),
       first_bookmark_command_id_(0) {
+  registrar_.Add(this, chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
+                 Source<Profile>(browser_->profile()));
 }
 
 WrenchMenu::~WrenchMenu() {
   if (bookmark_menu_delegate_.get()) {
     BookmarkModel* model = browser_->profile()->GetBookmarkModel();
     if (model)
       model->RemoveObserver(this);
   }
 }
 
@@ skipping 181 matching lines @@
   if (menu == bookmark_menu_)
     CreateBookmarkMenu();
 }
 
 void WrenchMenu::BookmarkModelChanged() {
   DCHECK(bookmark_menu_delegate_.get());
   if (!bookmark_menu_delegate_->is_mutating_model())
     root_->Cancel();
 }
 
+
+void WrenchMenu::Observe(int type,
+                         const NotificationSource& source,
+                         const NotificationDetails& details) {
+  switch (type) {
+    case chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED:
+      // A change in the global errors list can add or remove items from the
+      // menu. Close the menu to avoid have a stale menu on-screen.
+      root_->Cancel();
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
 void WrenchMenu::PopulateMenu(MenuItemView* parent,
                               MenuModel* model,
                               int* next_id) {
   int index_offset = model->GetFirstItemIndex(NULL);
   for (int i = 0, max = model->GetItemCount(); i < max; ++i) {
     int index = i + index_offset;
 
     MenuItemView* item =
         AppendMenuItem(parent, model, index, model->GetTypeAt(index), next_id);
 
@@ skipping 78 matching lines @@
       browser_->window()->GetNativeHandle());
   bookmark_menu_delegate_.reset(
       new BookmarkMenuDelegate(browser_->profile(),
                                NULL,
                                parent,
                                first_bookmark_command_id_));
   bookmark_menu_delegate_->Init(
       this, bookmark_menu_, model->bookmark_bar_node(), 0,
       BookmarkMenuDelegate::SHOW_OTHER_FOLDER);
 }