OcAppleUserInterfaceThemeLib.c

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#include <Guid/AppleVariable.h>
#include <Library/DebugLib.h>
#include <Library/OcMiscLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/OcAppleUserInterfaceThemeLib.h>
#include <Protocol/UserInterfaceTheme.h>
 
STATIC UINT32  mCurrentColor;
 
STATIC
EFI_STATUS
EFIAPI
UserInterfaceThemeGetColor (
  OUT UINT32  *Color
  )
{
  if (Color == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  *Color = mCurrentColor;
  return EFI_SUCCESS;
}
 
STATIC EFI_USER_INTERFACE_THEME_PROTOCOL  mAppleUserInterfaceThemeProtocol = {
  USER_THEME_INTERFACE_PROTOCOL_REVISION,
  UserInterfaceThemeGetColor
};
 
EFI_USER_INTERFACE_THEME_PROTOCOL *
OcAppleUserInterfaceThemeInstallProtocol (
  IN BOOLEAN  Reinstall
  )
{
  EFI_STATUS                         Status;
  UINT32                             Color;
  UINTN                              DataSize;
  EFI_USER_INTERFACE_THEME_PROTOCOL  *EfiUiInterface;
  EFI_HANDLE                         NewHandle;
 
  if (Reinstall) {
    Status = OcUninstallAllProtocolInstances (&gEfiUserInterfaceThemeProtocolGuid);
    if (EFI_ERROR (Status)) {
      DEBUG ((DEBUG_ERROR, "OCUT: Uninstall failed - %r\n", Status));
      return NULL;
    }
  } else {
    Status = gBS->LocateProtocol (
                    &gEfiUserInterfaceThemeProtocolGuid,
                    NULL,
                    (VOID **)&EfiUiInterface
                    );
    if (!EFI_ERROR (Status)) {
      return EfiUiInterface;
    }
  }
 
  //
  // Default color is black
  //
  mCurrentColor = APPLE_COLOR_SYRAH_BLACK;
 
  DataSize = sizeof (Color);
  Status   = gRT->GetVariable (
                    APPLE_DEFAULT_BACKGROUND_COLOR_VARIABLE_NAME,
                    &gAppleVendorVariableGuid,
                    0,
                    &DataSize,
                    &Color
                    );
  if (!EFI_ERROR (Status)) {
    mCurrentColor = Color;
  }
 
  NewHandle = NULL;
  Status    = gBS->InstallMultipleProtocolInterfaces (
                     &NewHandle,
                     &gEfiUserInterfaceThemeProtocolGuid,
                     &mAppleUserInterfaceThemeProtocol,
                     NULL
                     );
  if (EFI_ERROR (Status)) {
    return NULL;
  }
 
  return &mAppleUserInterfaceThemeProtocol;
}