/* 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 nsScreen_h_
#define nsScreen_h_
#include "Units.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/StaticPrefs_media.h"
#include "mozilla/dom/ScreenBinding.h"
#include "mozilla/dom/ScreenLuminance.h"
#include "mozilla/dom/ScreenOrientation.h"
class nsDeviceContext;
namespace mozilla {
enum class RFPTarget : uint64_t;
}
// Script "screen" object
class nsScreen : public mozilla::DOMEventTargetHelper {
private:
explicit nsScreen(nsPIDOMWindowInner* aWindow);
public:
static already_AddRefed<nsScreen> Create(nsPIDOMWindowInner* aWindow);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsScreen,
mozilla::DOMEventTargetHelper)
nsIGlobalObject* GetParentObject()
const {
return GetRelevantGlobal(); }
nsPIDOMWindowOuter* GetOuter()
const;
int32_t Top() {
return GetRect().y; }
int32_t Left() {
return GetRect().x; }
int32_t Width() {
return GetRect().Width(); }
int32_t Height() {
return GetRect().Height(); }
int32_t AvailTop() {
return GetAvailRect().y; }
int32_t AvailLeft() {
return GetAvailRect().x; }
int32_t AvailWidth() {
return GetAvailRect().Width(); }
int32_t AvailHeight() {
return GetAvailRect().Height(); }
int32_t PixelDepth();
int32_t ColorDepth() {
return PixelDepth(); }
// Media Capabilities extension
mozilla::dom::ScreenColorGamut ColorGamut()
const {
return mozilla::dom::ScreenColorGamut::Srgb;
}
already_AddRefed<mozilla::dom::ScreenLuminance> GetLuminance()
const {
return nullptr;
}
static bool MediaCapabilitiesEnabled(JSContext* aCx, JSObject* aGlobal) {
return mozilla::StaticPrefs::media_media_capabilities_screen_enabled();
}
IMPL_EVENT_HANDLER(change);
uint16_t GetOrientationAngle()
const;
mozilla::hal::ScreenOrientation GetOrientationType()
const;
// Deprecated
void GetMozOrientation(nsString& aOrientation,
mozilla::dom::CallerType aCallerType)
const;
IMPL_EVENT_HANDLER(mozorientationchange)
// This function is deprecated, use ScreenOrientation API instead.
bool MozLockOrientation(
const nsAString&) {
return false; };
bool MozLockOrientation(
const mozilla::dom::Sequence<nsString>&) {
return false;
}
void MozUnlockOrientation() {}
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
mozilla::dom::ScreenOrientation* Orientation()
const;
mozilla::dom::ScreenOrientation* GetOrientationIfExists()
const {
return mScreenOrientation.get();
}
bool IsScreen()
const override {
return true; }
protected:
nsDeviceContext* GetDeviceContext()
const;
mozilla::CSSIntRect GetRect();
mozilla::CSSIntRect GetAvailRect();
mozilla::CSSIntRect GetTopWindowInnerRectForRFP();
bool IsFullscreen()
const;
private:
virtual ~nsScreen();
bool ShouldResistFingerprinting(mozilla::RFPTarget aTarget)
const;
mozilla::dom::Document* TopContentDocumentInRDMPane()
const;
RefPtr<mozilla::dom::ScreenOrientation> mScreenOrientation;
};
namespace mozilla::dom {
inline nsScreen* EventTarget::GetAsScreen() {
return IsScreen() ? AsScreen() : nullptr;
}
inline const nsScreen* EventTarget::GetAsScreen()
const {
return IsScreen() ? AsScreen() : nullptr;
}
inline nsScreen* EventTarget::AsScreen() {
MOZ_DIAGNOSTIC_ASSERT(IsScreen());
return static_cast<nsScreen*>(this);
}
inline const nsScreen* EventTarget::AsScreen()
const {
MOZ_DIAGNOSTIC_ASSERT(IsScreen());
return static_cast<
const nsScreen*>(this);
}
}
// namespace mozilla::dom
#endif /* nsScreen_h_ */