widget/src/windows/TaskbarTabPreview.h
author Michael Wu <mwu@mozilla.com>
Wed, 28 Sep 2011 23:19:26 -0700
changeset 77799 e7854b4d29ba905ae3994f821b160c989bac4260
parent 41139 e613f35c1509ca6b0e3208e7f84279c36e2e4164
child 105635 cad26d2fb5af799dfe030fd2a8948d617eac2f52
permissions -rw-r--r--
Bug 675553 - Switch from PRBool to bool on a CLOSED TREE , r=bsmedberg,khuey,bz,cjones

/* vim: se cin sw=2 ts=2 et : */
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 *   Rob Arnold <tellrob@gmail.com>
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#ifndef __mozilla_widget_TaskbarTabPreview_h__
#define __mozilla_widget_TaskbarTabPreview_h__

#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7

#include "nsITaskbarTabPreview.h"
#include "TaskbarPreview.h"

namespace mozilla {
namespace widget {

class TaskbarTabPreview : public nsITaskbarTabPreview,
                          public TaskbarPreview
{
public:
  TaskbarTabPreview(ITaskbarList4 *aTaskbar, nsITaskbarPreviewController *aController, HWND aHWND, nsIDocShell *aShell);
  virtual ~TaskbarTabPreview();

  NS_DECL_ISUPPORTS
  NS_DECL_NSITASKBARTABPREVIEW
  NS_FORWARD_NSITASKBARPREVIEW(TaskbarPreview::)

private:
  virtual nsresult ShowActive(bool active);
  virtual HWND &PreviewWindow();
  virtual LRESULT WndProc(UINT nMsg, WPARAM wParam, LPARAM lParam);
  static LRESULT CALLBACK GlobalWndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam);

  virtual nsresult UpdateTaskbarProperties();
  virtual nsresult Enable();
  virtual nsresult Disable();
  virtual void DetachFromNSWindow();

  // WindowHook procedure for hooking mWnd
  static bool MainWindowHook(void *aContext,
                               HWND hWnd, UINT nMsg,
                               WPARAM wParam, LPARAM lParam,
                               LRESULT *aResult);

  // Bug 520807 - we need to update the proxy window style based on the main
  // window's style to workaround a bug with the way the DWM displays the
  // previews.
  void UpdateProxyWindowStyle();

  nsresult UpdateTitle();
  nsresult UpdateIcon();
  nsresult UpdateNext();

  // Handle to the toplevel proxy window
  HWND                    mProxyWindow;
  nsString                mTitle;
  nsCOMPtr<imgIContainer> mIconImage;
  // Cached Windows icon of mIconImage
  HICON                   mIcon;
  // Preview that follows this preview in the taskbar (left-to-right order)
  nsCOMPtr<nsITaskbarTabPreview> mNext;
  // True if this preview has been registered with the taskbar
  bool                    mRegistered;
};

} // namespace widget
} // namespace mozilla

#endif // MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7

#endif /* __mozilla_widget_TaskbarTabPreview_h__ */