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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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 mozilla_dom_presentation_provider_DisplayDeviceProvider_h
#define mozilla_dom_presentation_provider_DisplayDeviceProvider_h
#include "mozilla/RefPtr.h"
#include "mozilla/WeakPtr.h"
#include "nsCOMPtr.h"
#include "nsIDOMWindow.h"
#include "nsIDisplayInfo.h"
#include "nsIObserver.h"
#include "nsIPresentationDeviceProvider.h"
#include "nsIPresentationLocalDevice.h"
#include "nsIPresentationControlService.h"
#include "nsITimer.h"
#include "nsIWindowWatcher.h"
#include "nsString.h"
#include "nsTArray.h"
#include "nsWeakReference.h"
namespace mozilla {
namespace dom {
namespace presentation {
// Consistent definition with the definition in
// widget/gonk/libdisplay/GonkDisplay.h.
enum DisplayType {
DISPLAY_PRIMARY,
DISPLAY_EXTERNAL,
DISPLAY_VIRTUAL,
NUM_DISPLAY_TYPES
};
class DisplayDeviceProviderWrappedListener;
class DisplayDeviceProvider final : public nsIObserver
, public nsIPresentationDeviceProvider
, public nsIPresentationControlServerListener
, public SupportsWeakPtr<DisplayDeviceProvider>
{
private:
class HDMIDisplayDevice final : public nsIPresentationLocalDevice
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIPRESENTATIONDEVICE
NS_DECL_NSIPRESENTATIONLOCALDEVICE
// mScreenId is as same as the definition of display type.
explicit HDMIDisplayDevice(DisplayDeviceProvider* aProvider)
: mScreenId(DisplayType::DISPLAY_EXTERNAL)
, mName("HDMI")
, mType("external")
, mWindowId("hdmi")
, mAddress("127.0.0.1")
, mProvider(aProvider)
{}
nsresult OpenTopLevelWindow();
nsresult CloseTopLevelWindow();
const nsCString& Id() const { return mWindowId; }
const nsCString& Address() const { return mAddress; }
private:
virtual ~HDMIDisplayDevice() = default;
// Due to the limitation of nsWinodw, mScreenId must be an integer.
// And mScreenId is also align to the display type defined in
// widget/gonk/libdisplay/GonkDisplay.h.
// HDMI display is DisplayType::DISPLAY_EXTERNAL.
uint32_t mScreenId;
nsCString mName;
nsCString mType;
nsCString mWindowId;
nsCString mAddress;
nsCOMPtr<mozIDOMWindowProxy> mWindow;
// weak pointer
// Provider hold a strong pointer to the device. Use weak pointer to prevent
// the reference cycle.
WeakPtr<DisplayDeviceProvider> mProvider;
};
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
NS_DECL_NSIPRESENTATIONDEVICEPROVIDER
NS_DECL_NSIPRESENTATIONCONTROLSERVERLISTENER
// For using WeakPtr when MOZ_REFCOUNTED_LEAK_CHECKING defined
MOZ_DECLARE_WEAKREFERENCE_TYPENAME(DisplayDeviceProvider)
nsresult Connect(HDMIDisplayDevice* aDevice,
nsIPresentationControlChannel** aControlChannel);
private:
virtual ~DisplayDeviceProvider();
nsresult Init();
nsresult Uninit();
nsresult AddExternalScreen();
nsresult RemoveExternalScreen();
nsresult StartTCPService();
void AbortServerRetry();
// Now support HDMI display only and there should be only one HDMI display.
nsCOMPtr<nsIPresentationLocalDevice> mDevice = nullptr;
// weak pointer
// PresentationDeviceManager (mDeviceListener) hold strong pointer to
// DisplayDeviceProvider. Use nsWeakPtr to avoid reference cycle.
nsWeakPtr mDeviceListener = nullptr;
nsCOMPtr<nsIPresentationControlService> mPresentationService;
// Used to prevent reference cycle between DisplayDeviceProvider and
// TCPPresentationServer.
RefPtr<DisplayDeviceProviderWrappedListener> mWrappedListener;
bool mInitialized = false;
uint16_t mPort;
bool mIsServerRetrying = false;
uint32_t mServerRetryMs;
nsCOMPtr<nsITimer> mServerRetryTimer;
};
} // mozilla
} // dom
} // presentation
#endif // mozilla_dom_presentation_provider_DisplayDeviceProvider_h
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