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119 lines
4.2 KiB
C++
119 lines
4.2 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=2 et sw=2 tw=40: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_CAMERA_DOMCAMERAMANAGER_H
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#define DOM_CAMERA_DOMCAMERAMANAGER_H
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/dom/Promise.h"
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#include "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "nsIObserver.h"
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#include "nsHashKeys.h"
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#include "nsWrapperCache.h"
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#include "nsWeakReference.h"
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#include "nsClassHashtable.h"
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#include "nsCycleCollectionParticipant.h"
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#include "mozilla/Attributes.h"
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class nsPIDOMWindow;
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namespace mozilla {
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class ErrorResult;
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class nsDOMCameraControl;
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namespace dom {
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struct CameraConfiguration;
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class GetCameraCallback;
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class CameraErrorCallback;
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}
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}
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typedef nsTArray<nsRefPtr<mozilla::nsDOMCameraControl> > CameraControls;
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typedef nsClassHashtable<nsUint64HashKey, CameraControls> WindowTable;
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typedef mozilla::dom::Optional<mozilla::dom::OwningNonNull<mozilla::dom::GetCameraCallback> >
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OptionalNonNullGetCameraCallback;
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typedef mozilla::dom::Optional<mozilla::dom::OwningNonNull<mozilla::dom::CameraErrorCallback> >
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OptionalNonNullCameraErrorCallback;
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class nsDOMCameraManager MOZ_FINAL
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: public nsIObserver
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, public nsSupportsWeakReference
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, public nsWrapperCache
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsDOMCameraManager,
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nsIObserver)
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NS_DECL_NSIOBSERVER
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// Because this header's filename doesn't match its C++ or DOM-facing
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// classname, we can't rely on the [Func="..."] WebIDL tag to implicitly
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// include the right header for us; instead we must explicitly include a
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// HasSupport() method in each header. We can get rid of these with the
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// Great Renaming proposed in bug 983177.
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static bool HasSupport(JSContext* aCx, JSObject* aGlobal);
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static bool CheckPermission(nsPIDOMWindow* aWindow);
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static already_AddRefed<nsDOMCameraManager>
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CreateInstance(nsPIDOMWindow* aWindow);
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static bool IsWindowStillActive(uint64_t aWindowId);
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void Register(mozilla::nsDOMCameraControl* aDOMCameraControl);
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void OnNavigation(uint64_t aWindowId);
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void PermissionAllowed(uint32_t aCameraId,
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const mozilla::dom::CameraConfiguration& aOptions,
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mozilla::dom::GetCameraCallback* aOnSuccess,
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mozilla::dom::CameraErrorCallback* aOnError,
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mozilla::dom::Promise* aPromise);
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void PermissionCancelled(uint32_t aCameraId,
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const mozilla::dom::CameraConfiguration& aOptions,
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mozilla::dom::GetCameraCallback* aOnSuccess,
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mozilla::dom::CameraErrorCallback* aOnError,
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mozilla::dom::Promise* aPromise);
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// WebIDL
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already_AddRefed<mozilla::dom::Promise>
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GetCamera(const nsAString& aCamera,
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const mozilla::dom::CameraConfiguration& aOptions,
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const OptionalNonNullGetCameraCallback& aOnSuccess,
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const OptionalNonNullCameraErrorCallback& aOnError,
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mozilla::ErrorResult& aRv);
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void GetListOfCameras(nsTArray<nsString>& aList, mozilla::ErrorResult& aRv);
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nsPIDOMWindow* GetParentObject() const { return mWindow; }
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virtual JSObject* WrapObject(JSContext* aCx)
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MOZ_OVERRIDE;
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#ifdef MOZ_WIDGET_GONK
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static void PreinitCameraHardware();
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#endif
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protected:
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void XpComShutdown();
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void Shutdown(uint64_t aWindowId);
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~nsDOMCameraManager();
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private:
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nsDOMCameraManager() MOZ_DELETE;
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explicit nsDOMCameraManager(nsPIDOMWindow* aWindow);
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nsDOMCameraManager(const nsDOMCameraManager&) MOZ_DELETE;
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nsDOMCameraManager& operator=(const nsDOMCameraManager&) MOZ_DELETE;
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protected:
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uint64_t mWindowId;
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uint32_t mPermission;
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nsCOMPtr<nsPIDOMWindow> mWindow;
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/**
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* 'sActiveWindows' is only ever accessed while in the Main Thread,
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* so it is not otherwise protected.
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*/
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static ::WindowTable* sActiveWindows;
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};
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#endif // DOM_CAMERA_DOMCAMERAMANAGER_H
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