New unittests for infobar.

ceee/ie/plugin/bho/infobar_manager.h

 // Copyright (c) 2010 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.
 //
 // @file
 // Manager for infobar windows.
 
 #ifndef CEEE_IE_PLUGIN_BHO_INFOBAR_MANAGER_H_
 #define CEEE_IE_PLUGIN_BHO_INFOBAR_MANAGER_H_
 
 #include "base/scoped_ptr.h"
 #include "base/singleton.h"
 #include "ceee/ie/plugin/bho/infobar_window.h"
 #include "ceee/ie/plugin/bho/web_browser_events_source.h"
 
 namespace infobar_api {
 
 // InfobarManager creates and manages infobars, which are displayed at the top
 // or bottom of IE content window.
 class InfobarManager : public InfobarWindow::Delegate,
                        public WebBrowserEventsSource::Sink {
  public:
   explicit InfobarManager(HWND tab_window);
 
   // Shows the infobar of the specified type and navigates it to the specified
   // URL.
-  HRESULT Show(InfobarType type, int max_height, const std::wstring& url,
-               bool slide);
+  virtual HRESULT Show(InfobarType type, int max_height,
+                       const std::wstring& url, bool slide);
   // Hides the infobar of the specified type.
-  HRESULT Hide(InfobarType type);
+  virtual HRESULT Hide(InfobarType type);
   // Hides all infobars.
-  void HideAll();
+  virtual void HideAll();
 
   // Implementation of InfobarWindow::Delegate.
   // Finds the handle of the container window.
   virtual HWND GetContainerWindow();
   // Informs about window.close() event.
   virtual void OnWindowClose(InfobarType type);
 
- private:
+ protected:
   class ContainerWindow;
+  class ContainerWindowInterface {
+   public:
+    virtual ~ContainerWindowInterface() {}
+    virtual bool IsDestroyed() const = 0;
+    virtual HWND GetWindowHandle() const = 0;
+    virtual bool PostWindowsMessage(UINT msg, WPARAM wparam, LPARAM lparam) = 0;
+  };
+
+  // Lazy initialization of InfobarWindow object.
+  void LazyInitialize(InfobarType type);
+
+  // Creates container window. Separated for the unit testing.
+  virtual ContainerWindowInterface* CreateContainerWindow(
+      HWND container, InfobarManager* manager);
 
   // The HWND of the tab window the infobars are associated with.
   HWND tab_window_;
 
   // Parent window for IE content window.
-  scoped_ptr<ContainerWindow> container_window_;
+  scoped_ptr<ContainerWindowInterface> container_window_;
 
   // Infobar windows.
   scoped_ptr<InfobarWindow> infobars_[END_OF_INFOBAR_TYPE];
 
   // ContainerWindow callbacks.
   // Callback for WM_NCCALCSIZE.
   void OnContainerWindowNcCalcSize(RECT* rect);
   // Callback for messages on size or position change.
   void OnContainerWindowUpdatePosition();
   // Callback for message requesting closing the infobar.
   void OnContainerWindowDelayedCloseInfobar(InfobarType type);
   // Callback for WM_DESTROY.
   void OnContainerWindowDestroy();
 
   DISALLOW_COPY_AND_ASSIGN(InfobarManager);
 };
 
 }  // namespace infobar_api
 
 #endif  // CEEE_IE_PLUGIN_BHO_INFOBAR_MANAGER_H_