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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 .
*/
#include "ShellStackGuard.hxx"
#include <framework/ConfigurationController.hxx>
#include <framework/FrameworkHelper.hxx>
#include <DrawController.hxx>
#include <ViewShellBase.hxx>
#include <sfx2/printer.hxx>
#include <com/sun/star/drawing/framework/XControllerManager.hpp>
#include <comphelper/servicehelper.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing::framework;
using ::sd::framework::FrameworkHelper;
namespace sd::framework {
//===== CenterViewFocusModule ====================================================
ShellStackGuard::ShellStackGuard (Reference<frame::XController> const & rxController)
: mpBase(nullptr),
maPrinterPollingIdle("sd ShellStackGuard PrinterPollingIdle")
{
Reference<XControllerManager> xControllerManager (rxController, UNO_QUERY);
if (xControllerManager.is())
{
mxConfigurationController = xControllerManager->getConfigurationController();
// Tunnel through the controller to obtain a ViewShellBase.
auto pController = comphelper::getFromUnoTunnel<sd::DrawController>(rxController);
if (pController != nullptr)
mpBase = pController->GetViewShellBase();
}
if (mxConfigurationController.is())
{
// Listen for update starts so that the following update can be
// prevented in case of a printing printer.
mxConfigurationController->addConfigurationChangeListener(
this,
FrameworkHelper::msConfigurationUpdateStartEvent,
Any());
// Prepare the printer polling.
maPrinterPollingIdle.SetInvokeHandler(LINK(this,ShellStackGuard,TimeoutHandler));
}
}
ShellStackGuard::~ShellStackGuard()
{
}
void ShellStackGuard::disposing(std::unique_lock<std::mutex>&)
{
if (mxConfigurationController)
{
mxConfigurationController->removeConfigurationChangeListener(this);
mxConfigurationController = nullptr;
}
mpBase = nullptr;
}
void SAL_CALL ShellStackGuard::notifyConfigurationChange (
const ConfigurationChangeEvent& rEvent)
{
if (rEvent.Type == FrameworkHelper::msConfigurationUpdateStartEvent)
{
if (mpUpdateLock == nullptr && IsPrinting())
{
// Prevent configuration updates while the printer is printing.
mpUpdateLock.reset(new ConfigurationController::Lock(mxConfigurationController));
// Start polling for the printer having finished printing.
maPrinterPollingIdle.Start();
}
}
}
void SAL_CALL ShellStackGuard::disposing (
const lang::EventObject& rEvent)
{
if (mxConfigurationController.is())
if (rEvent.Source == mxConfigurationController)
{
mxConfigurationController = nullptr;
mpBase = nullptr;
}
}
IMPL_LINK(ShellStackGuard, TimeoutHandler, Timer*, pIdle, void)
{
#ifdef DEBUG
OSL_ASSERT(pIdle==&maPrinterPollingIdle);
#else
(void)pIdle;
#endif
if (mpUpdateLock == nullptr)
return;
if ( ! IsPrinting())
{
// Printing finished. Release the update lock.
mpUpdateLock.reset();
}
else
{
// Wait long for the printing to finish.
maPrinterPollingIdle.Start();
}
}
bool ShellStackGuard::IsPrinting() const
{
if (mpBase != nullptr)
{
SfxPrinter* pPrinter = mpBase->GetPrinter();
if (pPrinter != nullptr
&& pPrinter->IsPrinting())
{
return true;
}
}
return false;
}
} // end of namespace sd::framework
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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