gecko/widget/src/windows/nsUXThemeData.cpp

/* vim: se cin sw=2 ts=2 et : */
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 * 1.1 (the "License"); you may not use this file except in compliance with
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 * The Original Code is the Mozilla browser.
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 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1999
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 * Contributor(s):
 *   Rob Arnold <robarnold@mozilla.com> (Original Author)
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#include "nsUXThemeData.h"
#include "nsDebug.h"
// For GetWindowsVersion
#include "nsWindow.h"
#include "nsUXThemeConstants.h"

const PRUnichar
nsUXThemeData::kThemeLibraryName[] = L"uxtheme.dll";
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
const PRUnichar
nsUXThemeData::kDwmLibraryName[] = L"dwmapi.dll";
#endif

HANDLE
nsUXThemeData::sThemes[eUXNumClasses];

HMODULE
nsUXThemeData::sThemeDLL = NULL;
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
HMODULE
nsUXThemeData::sDwmDLL = NULL;
#endif

BOOL
nsUXThemeData::sFlatMenus = FALSE;
PRPackedBool
nsUXThemeData::sIsXPOrLater = PR_FALSE;
PRPackedBool
nsUXThemeData::sIsVistaOrLater = PR_FALSE;
PRPackedBool
nsUXThemeData::sHaveCompositor = PR_FALSE;

nsUXThemeData::OpenThemeDataPtr nsUXThemeData::openTheme = NULL;
nsUXThemeData::CloseThemeDataPtr nsUXThemeData::closeTheme = NULL;
nsUXThemeData::DrawThemeBackgroundPtr nsUXThemeData::drawThemeBG = NULL;
nsUXThemeData::DrawThemeEdgePtr nsUXThemeData::drawThemeEdge = NULL;
nsUXThemeData::GetThemeContentRectPtr nsUXThemeData::getThemeContentRect = NULL;
nsUXThemeData::GetThemeBackgroundRegionPtr nsUXThemeData::getThemeBackgroundRegion = NULL;
nsUXThemeData::GetThemePartSizePtr nsUXThemeData::getThemePartSize = NULL;
nsUXThemeData::GetThemeSysFontPtr nsUXThemeData::getThemeSysFont = NULL;
nsUXThemeData::GetThemeColorPtr nsUXThemeData::getThemeColor = NULL;
nsUXThemeData::GetThemeMarginsPtr nsUXThemeData::getThemeMargins = NULL;
nsUXThemeData::IsAppThemedPtr nsUXThemeData::isAppThemed = NULL;
nsUXThemeData::GetCurrentThemeNamePtr nsUXThemeData::getCurrentThemeName = NULL;
nsUXThemeData::GetThemeSysColorPtr nsUXThemeData::getThemeSysColor = NULL;

#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
nsUXThemeData::DwmExtendFrameIntoClientAreaProc nsUXThemeData::dwmExtendFrameIntoClientAreaPtr = NULL;
nsUXThemeData::DwmIsCompositionEnabledProc nsUXThemeData::dwmIsCompositionEnabledPtr = NULL;
nsUXThemeData::DwmSetIconicThumbnailProc nsUXThemeData::dwmSetIconicThumbnailPtr = NULL;
nsUXThemeData::DwmSetIconicLivePreviewBitmapProc nsUXThemeData::dwmSetIconicLivePreviewBitmapPtr = NULL;
nsUXThemeData::DwmSetWindowAttributeProc nsUXThemeData::dwmSetWindowAttributePtr = NULL;
nsUXThemeData::DwmInvalidateIconicBitmapsProc nsUXThemeData::dwmInvalidateIconicBitmapsPtr = NULL;
#endif

void
nsUXThemeData::Teardown() {
  Invalidate();
  if(sThemeDLL)
    FreeLibrary(sThemeDLL);
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
  if(sDwmDLL)
    FreeLibrary(sDwmDLL);
#endif
}

void
nsUXThemeData::Initialize()
{
  ::ZeroMemory(sThemes, sizeof(sThemes));
  NS_ASSERTION(!sThemeDLL, "nsUXThemeData being initialized twice!");
  sThemeDLL = ::LoadLibraryW(kThemeLibraryName);
  if (sThemeDLL) {
    openTheme = (OpenThemeDataPtr)GetProcAddress(sThemeDLL, "OpenThemeData");
    closeTheme = (CloseThemeDataPtr)GetProcAddress(sThemeDLL, "CloseThemeData");
    drawThemeBG = (DrawThemeBackgroundPtr)GetProcAddress(sThemeDLL, "DrawThemeBackground");
    drawThemeEdge = (DrawThemeEdgePtr)GetProcAddress(sThemeDLL, "DrawThemeEdge");
    getThemeContentRect = (GetThemeContentRectPtr)GetProcAddress(sThemeDLL, "GetThemeBackgroundContentRect");
    getThemeBackgroundRegion = (GetThemeBackgroundRegionPtr)GetProcAddress(sThemeDLL, "GetThemeBackgroundRegion");
    getThemePartSize = (GetThemePartSizePtr)GetProcAddress(sThemeDLL, "GetThemePartSize");
    getThemeSysFont = (GetThemeSysFontPtr)GetProcAddress(sThemeDLL, "GetThemeSysFont");
    getThemeColor = (GetThemeColorPtr)GetProcAddress(sThemeDLL, "GetThemeColor");
    getThemeMargins = (GetThemeMarginsPtr)GetProcAddress(sThemeDLL, "GetThemeMargins");
    isAppThemed = (IsAppThemedPtr)GetProcAddress(sThemeDLL, "IsAppThemed");
    getCurrentThemeName = (GetCurrentThemeNamePtr)GetProcAddress(sThemeDLL, "GetCurrentThemeName");
    getThemeSysColor = (GetThemeSysColorPtr)GetProcAddress(sThemeDLL, "GetThemeSysColor");
  }
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
   sDwmDLL = ::LoadLibraryW(kDwmLibraryName);
   if(sDwmDLL) {
     dwmExtendFrameIntoClientAreaPtr = (DwmExtendFrameIntoClientAreaProc)::GetProcAddress(sDwmDLL, "DwmExtendFrameIntoClientArea");
     dwmIsCompositionEnabledPtr = (DwmIsCompositionEnabledProc)::GetProcAddress(sDwmDLL, "DwmIsCompositionEnabled");
     dwmSetIconicThumbnailPtr = (DwmSetIconicThumbnailProc)::GetProcAddress(sDwmDLL, "DwmSetIconicThumbnail");
     dwmSetIconicLivePreviewBitmapPtr = (DwmSetIconicLivePreviewBitmapProc)::GetProcAddress(sDwmDLL, "DwmSetIconicLivePreviewBitmap");
     dwmSetWindowAttributePtr = (DwmSetWindowAttributeProc)::GetProcAddress(sDwmDLL, "DwmSetWindowAttribute");
     dwmInvalidateIconicBitmapsPtr = (DwmInvalidateIconicBitmapsProc)::GetProcAddress(sDwmDLL, "DwmInvalidateIconicBitmaps");
     CheckForCompositor();
   }
#endif

  PRInt32 version = nsWindow::GetWindowsVersion();
  sIsXPOrLater = version >= WINXP_VERSION;
  sIsVistaOrLater = version >= VISTA_VERSION;
  Invalidate();
}

void
nsUXThemeData::Invalidate() {
  for(int i = 0; i < eUXNumClasses; i++) {
    if(sThemes[i]) {
      closeTheme(sThemes[i]);
      sThemes[i] = NULL;
    }
  }
  if (sIsXPOrLater) {
    BOOL useFlat = PR_FALSE;
    sFlatMenus = ::SystemParametersInfo(SPI_GETFLATMENU, 0, &useFlat, 0) ?
                     useFlat : PR_FALSE;
  } else {
    // Contrary to Microsoft's documentation, SPI_GETFLATMENU will not fail
    // on Windows 2000, and it is also possible (though unlikely) for WIN2K
    // to be misconfigured in such a way that it would return true, so we
    // shall give WIN2K special treatment
    sFlatMenus = PR_FALSE;
  }
}

HANDLE
nsUXThemeData::GetTheme(nsUXThemeClass cls) {
  NS_ASSERTION(cls < eUXNumClasses, "Invalid theme class!");
  if(!sThemeDLL)
    return NULL;
  if(!sThemes[cls])
  {
    sThemes[cls] = openTheme(NULL, GetClassName(cls));
  }
  return sThemes[cls];
}

const wchar_t *nsUXThemeData::GetClassName(nsUXThemeClass cls) {
  switch(cls) {
    case eUXButton:
      return L"Button";
    case eUXEdit:
      return L"Edit";
    case eUXTooltip:
      return L"Tooltip";
    case eUXRebar:
      return L"Rebar";
    case eUXMediaRebar:
      return L"Media::Rebar";
    case eUXCommunicationsRebar:
      return L"Communications::Rebar";
    case eUXBrowserTabBarRebar:
      return L"BrowserTabBar::Rebar";
    case eUXToolbar:
      return L"Toolbar";
    case eUXMediaToolbar:
      return L"Media::Toolbar";
    case eUXCommunicationsToolbar:
      return L"Communications::Toolbar";
    case eUXProgress:
      return L"Progress";
    case eUXTab:
      return L"Tab";
    case eUXScrollbar:
      return L"Scrollbar";
    case eUXTrackbar:
      return L"Trackbar";
    case eUXSpin:
      return L"Spin";
    case eUXStatus:
      return L"Status";
    case eUXCombobox:
      return L"Combobox";
    case eUXHeader:
      return L"Header";
    case eUXListview:
      return L"Listview";
    case eUXMenu:
      return L"Menu";
    default:
      NS_NOTREACHED("unknown uxtheme class");
      return L"";
  }
}