/* vim: se cin sw=2 ts=2 et : */
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Mozilla browser.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Rob Arnold <robarnold@mozilla.com> (Original Author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#ifndef __UXThemeData_h__
#define __UXThemeData_h__
#include <windows.h>
#include <uxtheme.h>

#include "nscore.h"
#include "mozilla/LookAndFeel.h"

#include <dwmapi.h>

#include "nsWindowDefs.h"

// These window messages are not defined in dwmapi.h
#ifndef WM_DWMCOMPOSITIONCHANGED
#define WM_DWMCOMPOSITIONCHANGED        0x031E
#endif

// Windows 7 additions
#ifndef WM_DWMSENDICONICTHUMBNAIL
#define WM_DWMSENDICONICTHUMBNAIL 0x0323
#define WM_DWMSENDICONICLIVEPREVIEWBITMAP 0x0326
#endif

#define DWMWA_FORCE_ICONIC_REPRESENTATION 7
#define DWMWA_HAS_ICONIC_BITMAP           10

enum nsUXThemeClass {
  eUXButton = 0,
  eUXEdit,
  eUXTooltip,
  eUXRebar,
  eUXMediaRebar,
  eUXCommunicationsRebar,
  eUXBrowserTabBarRebar,
  eUXToolbar,
  eUXMediaToolbar,
  eUXCommunicationsToolbar,
  eUXProgress,
  eUXTab,
  eUXScrollbar,
  eUXTrackbar,
  eUXSpin,
  eUXStatus,
  eUXCombobox,
  eUXHeader,
  eUXListview,
  eUXMenu,
  eUXWindowFrame,
  eUXNumClasses
};

// Native windows style constants
enum WindowsTheme {
  WINTHEME_UNRECOGNIZED = 0,
  WINTHEME_CLASSIC      = 1, // no theme
  WINTHEME_AERO         = 2,
  WINTHEME_LUNA         = 3,
  WINTHEME_ROYALE       = 4,
  WINTHEME_ZUNE         = 5
};
enum WindowsThemeColor {
  WINTHEMECOLOR_UNRECOGNIZED = 0,
  WINTHEMECOLOR_NORMAL       = 1,
  WINTHEMECOLOR_HOMESTEAD    = 2,
  WINTHEMECOLOR_METALLIC     = 3
};

#define CMDBUTTONIDX_MINIMIZE    0
#define CMDBUTTONIDX_RESTORE     1
#define CMDBUTTONIDX_CLOSE       2
#define CMDBUTTONIDX_BUTTONBOX   3

class nsUXThemeData {
  static HMODULE sThemeDLL;
   static HMODULE sDwmDLL;
  static HANDLE sThemes[eUXNumClasses];
  
  static const wchar_t *GetClassName(nsUXThemeClass);

public:
  static const PRUnichar kThemeLibraryName[];
   static const PRUnichar kDwmLibraryName[];
  static bool sFlatMenus;
  static bool sTitlebarInfoPopulatedAero;
  static bool sTitlebarInfoPopulatedThemed;
  static SIZE sCommandButtons[4];
  static mozilla::LookAndFeel::WindowsTheme sThemeId;
  static bool sIsDefaultWindowsTheme;

  static void Initialize();
  static void Teardown();
  static void Invalidate();
  static HANDLE GetTheme(nsUXThemeClass cls);
  static HMODULE GetThemeDLL();
  static HMODULE GetDwmDLL();

  // nsWindow calls this to update desktop settings info
  static void InitTitlebarInfo();
  static void UpdateTitlebarInfo(HWND aWnd);

  static void UpdateNativeThemeInfo();
  static mozilla::LookAndFeel::WindowsTheme GetNativeThemeId();
  static bool IsDefaultWindowTheme();

  // dwmapi.dll function typedefs and declarations
  typedef HRESULT (WINAPI*DwmExtendFrameIntoClientAreaProc)(HWND hWnd, const MARGINS *pMarInset);
  typedef HRESULT (WINAPI*DwmIsCompositionEnabledProc)(BOOL *pfEnabled);
  typedef HRESULT (WINAPI*DwmSetIconicThumbnailProc)(HWND hWnd, HBITMAP hBitmap, DWORD dwSITFlags);
  typedef HRESULT (WINAPI*DwmSetIconicLivePreviewBitmapProc)(HWND hWnd, HBITMAP hBitmap, POINT *pptClient, DWORD dwSITFlags);
  typedef HRESULT (WINAPI*DwmGetWindowAttributeProc)(HWND hWnd, DWORD dwAttribute, LPCVOID pvAttribute, DWORD cbAttribute);
  typedef HRESULT (WINAPI*DwmSetWindowAttributeProc)(HWND hWnd, DWORD dwAttribute, LPCVOID pvAttribute, DWORD cbAttribute);
  typedef HRESULT (WINAPI*DwmInvalidateIconicBitmapsProc)(HWND hWnd);
  typedef HRESULT (WINAPI*DwmDefWindowProcProc)(HWND hWnd, UINT msg, LPARAM lParam, WPARAM wParam, LRESULT *aRetValue);

  static DwmExtendFrameIntoClientAreaProc dwmExtendFrameIntoClientAreaPtr;
  static DwmIsCompositionEnabledProc dwmIsCompositionEnabledPtr;
  static DwmSetIconicThumbnailProc dwmSetIconicThumbnailPtr;
  static DwmSetIconicLivePreviewBitmapProc dwmSetIconicLivePreviewBitmapPtr;
  static DwmGetWindowAttributeProc dwmGetWindowAttributePtr;
  static DwmSetWindowAttributeProc dwmSetWindowAttributePtr;
  static DwmInvalidateIconicBitmapsProc dwmInvalidateIconicBitmapsPtr;
  static DwmDefWindowProcProc dwmDwmDefWindowProcPtr;

  // This method returns the cached compositor state. Most
  // callers should call without the argument. The cache
  // should be modified only when the application receives
  // WM_DWMCOMPOSITIONCHANGED. This rule prevents inconsistent
  // results for two or more calls which check the state during
  // composition transition.
  static bool CheckForCompositor(bool aUpdateCache = false) {
    static BOOL sCachedValue = FALSE;
    if(aUpdateCache && dwmIsCompositionEnabledPtr) {
      dwmIsCompositionEnabledPtr(&sCachedValue);
    }
    return (sCachedValue != FALSE);
  }
};
#endif // __UXThemeData_h__