gecko-dev/dom/base/nsScreen.h
Mounir Lamouri d5af9d6e1e Bug 851642 - Make sure fullscreenchange event is sent even when the document is being removed from the doctree. r=smaug
... instead of relying on nsScreen being destroyed which was causing flaky
behaviour on Firefox Android (based on GC) and was creating a race condition bug
on Firefox OS.
2013-05-13 12:00:42 +01:00

152 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/Attributes.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/EventHandlerBinding.h"
#include "mozilla/dom/ScreenOrientation.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/Hal.h"
#include "nsIDOMScreen.h"
#include "nsISupports.h"
#include "nsIScriptContext.h"
#include "nsCOMPtr.h"
#include "nsDOMEventTargetHelper.h"
#include "nsRect.h"
class nsIDocShell;
class nsDeviceContext;
// Script "screen" object
class nsScreen : public nsDOMEventTargetHelper
, public nsIDOMScreen
, public mozilla::hal::ScreenConfigurationObserver
{
typedef mozilla::ErrorResult ErrorResult;
public:
static already_AddRefed<nsScreen> Create(nsPIDOMWindow* aWindow);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIDOMSCREEN
NS_REALLY_FORWARD_NSIDOMEVENTTARGET(nsDOMEventTargetHelper)
nsPIDOMWindow* GetParentObject() const
{
return GetOwner();
}
int32_t GetTop(ErrorResult& aRv)
{
nsRect rect;
aRv = GetRect(rect);
return rect.y;
}
int32_t GetLeft(ErrorResult& aRv)
{
nsRect rect;
aRv = GetRect(rect);
return rect.x;
}
int32_t GetWidth(ErrorResult& aRv)
{
nsRect rect;
aRv = GetRect(rect);
return rect.width;
}
int32_t GetHeight(ErrorResult& aRv)
{
nsRect rect;
aRv = GetRect(rect);
return rect.height;
}
int32_t GetPixelDepth(ErrorResult& aRv);
int32_t GetColorDepth(ErrorResult& aRv)
{
return GetPixelDepth(aRv);
}
int32_t GetAvailTop(ErrorResult& aRv)
{
nsRect rect;
aRv = GetAvailRect(rect);
return rect.y;
}
int32_t GetAvailLeft(ErrorResult& aRv)
{
nsRect rect;
aRv = GetAvailRect(rect);
return rect.x;
}
int32_t GetAvailWidth(ErrorResult& aRv)
{
nsRect rect;
aRv = GetAvailRect(rect);
return rect.width;
}
int32_t GetAvailHeight(ErrorResult& aRv)
{
nsRect rect;
aRv = GetAvailRect(rect);
return rect.height;
}
void GetMozOrientation(nsString& aOrientation);
IMPL_EVENT_HANDLER(mozorientationchange)
bool MozLockOrientation(const nsAString& aOrientation, ErrorResult& aRv);
bool MozLockOrientation(const mozilla::dom::Sequence<nsString>& aOrientations, ErrorResult& aRv);
void MozUnlockOrientation();
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsScreen,
nsDOMEventTargetHelper)
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
void Notify(const mozilla::hal::ScreenConfiguration& aConfiguration);
protected:
nsDeviceContext* GetDeviceContext();
nsresult GetRect(nsRect& aRect);
nsresult GetAvailRect(nsRect& aRect);
mozilla::dom::ScreenOrientation mOrientation;
private:
class FullScreenEventListener MOZ_FINAL : public nsIDOMEventListener
{
public:
FullScreenEventListener() {};
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
};
nsScreen();
virtual ~nsScreen();
enum LockPermission {
LOCK_DENIED,
FULLSCREEN_LOCK_ALLOWED,
LOCK_ALLOWED
};
LockPermission GetLockOrientationPermission() const;
nsRefPtr<FullScreenEventListener> mEventListener;
};
#endif /* nsScreen_h___ */