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111 lines
3.4 KiB
C++
111 lines
3.4 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 "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "nsIThread.h"
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#include "nsIObserver.h"
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#include "nsThreadUtils.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 "nsIDOMCameraManager.h"
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#include "nsCycleCollectionParticipant.h"
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#include "mozilla/Attributes.h"
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#include "nsPIDOMWindow.h"
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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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class CameraSelector;
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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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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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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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nsresult GetNumberOfCameras(int32_t& aDeviceCount);
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nsresult GetCameraName(uint32_t aDeviceNum, nsCString& aDeviceName);
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// WebIDL
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void GetCamera(const mozilla::dom::CameraSelector& aOptions,
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nsICameraGetCameraCallback* aCallback,
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const mozilla::dom::Optional<nsICameraErrorCallback*>& ErrorCallback,
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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, JS::Handle<JSObject*> aScope)
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MOZ_OVERRIDE;
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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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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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nsCOMPtr<nsIThread> mCameraThread;
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nsCOMPtr<nsPIDOMWindow> mWindow;
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/**
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* 'mActiveWindows' 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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class GetCameraTask : public nsRunnable
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{
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public:
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GetCameraTask(uint32_t aCameraId, nsICameraGetCameraCallback* onSuccess, nsICameraErrorCallback* onError, nsIThread* aCameraThread)
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: mCameraId(aCameraId)
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, mOnSuccessCb(onSuccess)
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, mOnErrorCb(onError)
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, mCameraThread(aCameraThread)
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{ }
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NS_IMETHOD Run() MOZ_OVERRIDE;
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protected:
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uint32_t mCameraId;
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nsCOMPtr<nsICameraGetCameraCallback> mOnSuccessCb;
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nsCOMPtr<nsICameraErrorCallback> mOnErrorCb;
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nsCOMPtr<nsIThread> mCameraThread;
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};
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#endif // DOM_CAMERA_DOMCAMERAMANAGER_H
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