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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_VCL_INC_HEADLESS_SVPINST_HXX
#define INCLUDED_VCL_INC_HEADLESS_SVPINST_HXX
#include <osl/thread.hxx>
#include <osl/conditn.hxx>
#include <salinst.hxx>
#include <saltimer.hxx>
#include <salusereventlist.hxx>
#include <unx/geninst.h>
#include <unx/genprn.h>
#include <condition_variable>
#include <mutex>
#include <queue>
#include <sys/time.h>
#ifdef IOS
#define SvpSalInstance AquaSalInstance
#endif
class SvpSalInstance;
class SvpSalTimer final : public SalTimer
{
SvpSalInstance* m_pInstance;
public:
SvpSalTimer( SvpSalInstance* pInstance ) : m_pInstance( pInstance ) {}
virtual ~SvpSalTimer() override;
// override all pure virtual methods
virtual void Start( sal_uInt64 nMS ) override;
virtual void Stop() override;
};
class SvpSalFrame;
class GenPspGraphics;
enum class SvpRequest
{
NONE,
MainThreadDispatchOneEvent,
MainThreadDispatchAllEvents,
};
class SvpSalYieldMutex final : public SalYieldMutex
{
private:
// note: these members might as well live in SvpSalInstance, but there is
// at least one subclass of SvpSalInstance (GTK3) that doesn't use them.
friend class SvpSalInstance;
// members for communication from main thread to non-main thread
std::mutex m_FeedbackMutex;
std::queue<bool> m_FeedbackPipe;
std::condition_variable m_FeedbackCV;
osl::Condition m_NonMainWaitingYieldCond;
// members for communication from non-main thread to main thread
bool m_bNoYieldLock = false; // accessed only on main thread
std::mutex m_WakeUpMainMutex; // guard m_wakeUpMain & m_Request
std::condition_variable m_WakeUpMainCond;
bool m_wakeUpMain = false;
SvpRequest m_Request = SvpRequest::NONE;
virtual void doAcquire( sal_uInt32 nLockCount ) override;
virtual sal_uInt32 doRelease( bool bUnlockAll ) override;
public:
SvpSalYieldMutex();
virtual ~SvpSalYieldMutex() override;
virtual bool IsCurrentThread() const override;
};
// NOTE: the functions IsMainThread, DoYield and Wakeup *require* the use of
// SvpSalYieldMutex; if a subclass uses something else it must override these
// (Wakeup is only called by SvpSalTimer and SvpSalFrame)
class VCL_DLLPUBLIC SvpSalInstance : public SalGenericInstance, public SalUserEventList
{
timeval m_aTimeout;
sal_uLong m_nTimeoutMS;
oslThreadIdentifier m_MainThread;
virtual void TriggerUserEventProcessing() override;
virtual void ProcessEvent( SalUserEvent aEvent ) override;
#if defined EMSCRIPTEN
bool DoExecute(int &nExitCode) override;
void DoQuit() override;
#endif
public:
static SvpSalInstance* s_pDefaultInstance;
SvpSalInstance( std::unique_ptr<SalYieldMutex> pMutex );
virtual ~SvpSalInstance() override;
SAL_DLLPRIVATE bool ImplYield(bool bWait, bool bHandleAllCurrentEvents);
SAL_DLLPRIVATE void CloseWakeupPipe();
SAL_DLLPRIVATE void Wakeup(SvpRequest request = SvpRequest::NONE);
SAL_DLLPRIVATE void StartTimer( sal_uInt64 nMS );
SAL_DLLPRIVATE void StopTimer();
inline void registerFrame( SalFrame* pFrame );
inline void deregisterFrame( SalFrame* pFrame );
SAL_DLLPRIVATE bool CheckTimeout( bool bExecuteTimers = true );
// Frame
SAL_DLLPRIVATE virtual SalFrame* CreateChildFrame( SystemParentData* pParent, SalFrameStyleFlags nStyle ) override;
SAL_DLLPRIVATE virtual SalFrame* CreateFrame( SalFrame* pParent, SalFrameStyleFlags nStyle ) override;
virtual void DestroyFrame( SalFrame* pFrame ) override;
// Object (System Child Window)
SAL_DLLPRIVATE virtual SalObject* CreateObject( SalFrame* pParent, SystemWindowData* pWindowData, bool bShow ) override;
virtual void DestroyObject( SalObject* pObject ) override;
// VirtualDevice
// nDX and nDY in Pixel
// nBitCount: 0 == Default(=as window) / 1 == Mono
// pData allows for using a system dependent graphics or device context
SAL_DLLPRIVATE virtual std::unique_ptr<SalVirtualDevice>
CreateVirtualDevice( SalGraphics& rGraphics,
tools::Long &nDX, tools::Long &nDY,
DeviceFormat eFormat, const SystemGraphicsData *pData = nullptr ) override;
// Printer
// pSetupData->mpDriverData can be 0
// pSetupData must be updated with the current
// JobSetup
SAL_DLLPRIVATE virtual SalInfoPrinter* CreateInfoPrinter( SalPrinterQueueInfo* pQueueInfo,
ImplJobSetup* pSetupData ) override;
virtual void DestroyInfoPrinter( SalInfoPrinter* pPrinter ) override;
SAL_DLLPRIVATE virtual std::unique_ptr<SalPrinter> CreatePrinter( SalInfoPrinter* pInfoPrinter ) override;
virtual void GetPrinterQueueInfo( ImplPrnQueueList* pList ) override;
virtual void GetPrinterQueueState( SalPrinterQueueInfo* pInfo ) override;
virtual OUString GetDefaultPrinter() override;
virtual void PostPrintersChanged() override;
// SalTimer
SAL_DLLPRIVATE virtual SalTimer* CreateSalTimer() override;
// SalSystem
SAL_DLLPRIVATE virtual SalSystem* CreateSalSystem() override;
// SalBitmap
virtual std::shared_ptr<SalBitmap> CreateSalBitmap() override;
// wait next event and dispatch
// must returned by UserEvent (SalFrame::PostEvent)
// and timer
SAL_DLLPRIVATE virtual bool DoYield(bool bWait, bool bHandleAllCurrentEvents) override;
SAL_DLLPRIVATE virtual bool AnyInput( VclInputFlags nType ) override;
SAL_DLLPRIVATE virtual bool IsMainThread() const override;
virtual void updateMainThread() override;
virtual OUString GetConnectionIdentifier() override;
SAL_DLLPRIVATE virtual void AddToRecentDocumentList(const OUString& rFileUrl, const OUString& rMimeType, const OUString& rDocumentService) override;
SAL_DLLPRIVATE virtual std::unique_ptr<GenPspGraphics> CreatePrintGraphics() override;
SAL_DLLPRIVATE virtual const cairo_font_options_t* GetCairoFontOptions() override;
};
inline void SvpSalInstance::registerFrame( SalFrame* pFrame )
{
insertFrame( pFrame );
}
inline void SvpSalInstance::deregisterFrame( SalFrame* pFrame )
{
eraseFrame( pFrame );
}
VCL_DLLPUBLIC cairo_surface_t* get_underlying_cairo_surface(const VirtualDevice& rDevice);
#endif // INCLUDED_VCL_INC_HEADLESS_SVPINST_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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