Source code
Revision control
Copy as Markdown
Other Tools
/* 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,
#include "Hal.h"
#include "mozilla/widget/ScreenManager.h"
#include "nsIWindowsUIUtils.h"
#include "WinUtils.h"
#include <windows.h>
namespace mozilla {
namespace hal_impl {
static decltype(SetDisplayAutoRotationPreferences)*
sSetDisplayAutoRotationPreferences = nullptr;
RefPtr<GenericNonExclusivePromise> LockScreenOrientation(
const hal::ScreenOrientation& aOrientation) {
AR_STATE state;
if (!widget::WinUtils::GetAutoRotationState(&state)) {
return GenericNonExclusivePromise::CreateAndReject(
NS_ERROR_DOM_NOT_SUPPORTED_ERR, __func__);
}
if (state & (AR_DISABLED | AR_REMOTESESSION | AR_MULTIMON | AR_NOSENSOR |
AR_NOT_SUPPORTED | AR_LAPTOP | AR_DOCKED)) {
return GenericNonExclusivePromise::CreateAndReject(
NS_ERROR_DOM_NOT_SUPPORTED_ERR, __func__);
}
if (!sSetDisplayAutoRotationPreferences) {
HMODULE user32dll = GetModuleHandleW(L"user32.dll");
if (user32dll) {
sSetDisplayAutoRotationPreferences =
(decltype(SetDisplayAutoRotationPreferences)*)GetProcAddress(
user32dll, "SetDisplayAutoRotationPreferences");
}
if (!sSetDisplayAutoRotationPreferences) {
return GenericNonExclusivePromise::CreateAndReject(
NS_ERROR_DOM_NOT_SUPPORTED_ERR, __func__);
}
}
ORIENTATION_PREFERENCE orientation = ORIENTATION_PREFERENCE_NONE;
if (aOrientation == hal::ScreenOrientation::Default) {
// Actually, current screen is single and tablet mode according to
// GetAutoRotationState. So get primary screen data for natural orientation.
RefPtr<widget::Screen> screen =
widget::ScreenManager::GetSingleton().GetPrimaryScreen();
hal::ScreenOrientation defaultOrientation =
screen->GetDefaultOrientationType();
if (defaultOrientation == hal::ScreenOrientation::LandscapePrimary) {
orientation = ORIENTATION_PREFERENCE_LANDSCAPE;
} else {
orientation = ORIENTATION_PREFERENCE_PORTRAIT;
}
} else {
if (aOrientation & hal::ScreenOrientation::LandscapePrimary) {
orientation |= ORIENTATION_PREFERENCE_LANDSCAPE;
}
if (aOrientation & hal::ScreenOrientation::LandscapeSecondary) {
orientation |= ORIENTATION_PREFERENCE_LANDSCAPE_FLIPPED;
}
if (aOrientation & hal::ScreenOrientation::PortraitPrimary) {
orientation |= ORIENTATION_PREFERENCE_PORTRAIT;
}
if (aOrientation & hal::ScreenOrientation::PortraitSecondary) {
orientation |= ORIENTATION_PREFERENCE_PORTRAIT_FLIPPED;
}
}
if (!sSetDisplayAutoRotationPreferences(orientation)) {
return GenericNonExclusivePromise::CreateAndReject(NS_ERROR_DOM_ABORT_ERR,
__func__);
}
return GenericNonExclusivePromise::CreateAndResolve(true, __func__);
}
void UnlockScreenOrientation() {
if (!sSetDisplayAutoRotationPreferences) {
return;
}
// This does nothing if the device doesn't support orientation lock
sSetDisplayAutoRotationPreferences(ORIENTATION_PREFERENCE_NONE);
}
} // namespace hal_impl
} // namespace mozilla