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/* vim: se cin sw=2 ts=2 et : */
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef __mozilla_widget_TaskbarWindowPreview_h__
#define __mozilla_widget_TaskbarWindowPreview_h__

#include "nsITaskbarWindowPreview.h"
#include "nsITaskbarProgress.h"
#include "nsITaskbarOverlayIconController.h"
#include "TaskbarPreview.h"
#include <nsWeakReference.h>

namespace mozilla {
namespace widget {

class TaskbarPreviewButton;
class TaskbarWindowPreview : public TaskbarPreview,
                             public nsITaskbarWindowPreview,
                             public nsITaskbarProgress,
                             public nsITaskbarOverlayIconController,
                             public nsSupportsWeakReference {
  virtual ~TaskbarWindowPreview();

 public:
  TaskbarWindowPreview(ITaskbarList4 *aTaskbar,
                       nsITaskbarPreviewController *aController, HWND aHWND,
                       nsIDocShell *aShell);

  NS_DECL_ISUPPORTS
  NS_DECL_NSITASKBARWINDOWPREVIEW
  NS_DECL_NSITASKBARPROGRESS
  NS_DECL_NSITASKBAROVERLAYICONCONTROLLER
  NS_FORWARD_NSITASKBARPREVIEW(TaskbarPreview::)

  virtual LRESULT WndProc(UINT nMsg, WPARAM wParam, LPARAM lParam) override;

 private:
  virtual nsresult ShowActive(bool active) override;
  virtual HWND &PreviewWindow() override;

  virtual nsresult UpdateTaskbarProperties() override;
  virtual nsresult Enable() override;
  virtual nsresult Disable() override;
  virtual void DetachFromNSWindow() override;
  nsresult UpdateButton(uint32_t index);
  nsresult UpdateButtons();

  // Is custom drawing enabled?
  bool mCustomDrawing;
  // Have we made any buttons?
  bool mHaveButtons;
  // Windows button format
  THUMBBUTTON mThumbButtons[nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS];
  // Pointers to our button class (cached instances)
  nsWeakPtr mWeakButtons[nsITaskbarWindowPreview::NUM_TOOLBAR_BUTTONS];

  // Called to update ITaskbarList4 dependent properties
  nsresult UpdateTaskbarProgress();
  nsresult UpdateOverlayIcon();

  // The taskbar progress
  TBPFLAG mState;
  ULONGLONG mCurrentValue;
  ULONGLONG mMaxValue;

  // Taskbar overlay icon
  HICON mOverlayIcon;
  nsString mIconDescription;

  // WindowHook procedure for hooking mWnd for taskbar progress and icon stuff
  static bool TaskbarWindowHook(void *aContext, HWND hWnd, UINT nMsg,
                                WPARAM wParam, LPARAM lParam, LRESULT *aResult);

  friend class TaskbarPreviewButton;
};

}  // namespace widget
}  // namespace mozilla

#endif /* __mozilla_widget_TaskbarWindowPreview_h__ */