Disable an extension when it is upgraded to a version that requires more

chrome/browser/extensions/extension_disabled_infobar_delegate.cc

+// Copyright (c) 2009 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/extensions/extension_disabled_infobar_delegate.h"
+
+#include "app/l10n_util.h"
+#include "chrome/browser/extensions/extensions_service.h"
+#include "chrome/browser/tab_contents/infobar_delegate.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
+#include "chrome/browser/browser_list.h"
+#include "chrome/common/notification_registrar.h"
+#include "chrome/common/notification_service.h"
+#include "grit/generated_resources.h"
+
+class ExtensionDisabledInfobarDelegate
+    : public ConfirmInfoBarDelegate,
+      public NotificationObserver {
+ public:
+  ExtensionDisabledInfobarDelegate(TabContents* tab_contents,
+                                   ExtensionsService* service,
+                                   const std::string& extension_id,
+                                   const std::string& extension_name)
+      : ConfirmInfoBarDelegate(tab_contents),
+        tab_contents_(tab_contents),
+        service_(service),
+        extension_id_(extension_id),
+        extension_name_(extension_name) {
+    // The user might re-enable the extension in other ways, so watch for that.
+    registrar_.Add(this, NotificationType::EXTENSIONS_LOADED,
+                   Source<ExtensionsService>(service));
+  }
+  virtual void InfoBarClosed() {
+    delete this;
+  }
+  virtual std::wstring GetMessageText() const {
+    return l10n_util::GetStringF(IDS_EXTENSION_DISABLED_INFOBAR_LABEL,
+                                 UTF8ToWide(extension_name_));
+  }
+  virtual SkBitmap* GetIcon() const {
+    return NULL;
+  }
+  virtual int GetButtons() const {
+    return BUTTON_OK;
+  }
+  virtual std::wstring GetButtonLabel(
+      ConfirmInfoBarDelegate::InfoBarButton button) const {
+    return l10n_util::GetString(IDS_EXTENSION_DISABLED_INFOBAR_ENABLE_BUTTON);
+  }
+  virtual bool Accept() {
+    service_->EnableExtension(extension_id_);
+    return true;
+  }
+
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) {
+    DCHECK(type == NotificationType::EXTENSIONS_LOADED);
+    ExtensionList* extensions = Details<ExtensionList>(details).ptr();
+
+    for (ExtensionList::iterator iter = extensions->begin();
+         iter != extensions->end(); ++iter) {
+       if ((*iter)->id() == extension_id_) {
+         // TODO(mpcomplete): This doesn't seem to always result in us getting
+         // deleted.
+         tab_contents_->RemoveInfoBar(this);
+         return;
+       }
+    }
+  }
+
+ private:
+  NotificationRegistrar registrar_;
+  TabContents* tab_contents_;
+  ExtensionsService* service_;
+  std::string extension_id_;
+  std::string extension_name_;
+};
+
+void ShowExtensionDisabledUI(ExtensionsService* service, Profile* profile,
+                             Extension* extension) {
+  Browser* browser = BrowserList::GetLastActiveWithProfile(profile);
+  if (!browser)
+    return;
+
+  TabContents* tab_contents = browser->GetSelectedTabContents();
+  if (!tab_contents)
+    return;
+
+  tab_contents->AddInfoBar(new ExtensionDisabledInfobarDelegate(
+      tab_contents, service, extension->id(), extension->name()));
+}