Files
libreoffice/sd/source/ui/framework/module/ShellStackGuard.cxx
Michael Meeks b9042fad7c re-base on ALv2 code.
Change-Id: I6c145e984c885c7e06caa1c27bfb354ea49ad9ce
2012-06-21 15:00:05 +01:00

186 lines
4.9 KiB
C++

/* -*- 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 <com/sun/star/drawing/framework/XConfigurationController.hpp>
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::drawing::framework;
using ::rtl::OUString;
using ::sd::framework::FrameworkHelper;
namespace sd { namespace framework {
//===== CenterViewFocusModule ====================================================
ShellStackGuard::ShellStackGuard (Reference<frame::XController>& rxController)
: ShellStackGuardInterfaceBase(m_aMutex),
mxConfigurationController(),
mpBase(NULL),
mpUpdateLock(),
maPrinterPollingTimer()
{
Reference<XControllerManager> xControllerManager (rxController, UNO_QUERY);
if (xControllerManager.is())
{
mxConfigurationController = xControllerManager->getConfigurationController();
// Tunnel through the controller to obtain a ViewShellBase.
Reference<lang::XUnoTunnel> xTunnel (rxController, UNO_QUERY);
if (xTunnel.is())
{
::sd::DrawController* pController = reinterpret_cast<sd::DrawController*>(
xTunnel->getSomething(sd::DrawController::getUnoTunnelId()));
if (pController != NULL)
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.
maPrinterPollingTimer.SetTimeoutHdl(LINK(this,ShellStackGuard,TimeoutHandler));
maPrinterPollingTimer.SetTimeout(300);
}
}
ShellStackGuard::~ShellStackGuard (void)
{
}
void SAL_CALL ShellStackGuard::disposing (void)
{
if (mxConfigurationController.is())
mxConfigurationController->removeConfigurationChangeListener(this);
mxConfigurationController = NULL;
mpBase = NULL;
}
void SAL_CALL ShellStackGuard::notifyConfigurationChange (
const ConfigurationChangeEvent& rEvent)
throw (RuntimeException)
{
if (rEvent.Type.equals(FrameworkHelper::msConfigurationUpdateStartEvent))
{
if (mpUpdateLock.get() == NULL && IsPrinting())
{
// Prevent configuration updates while the printer is printing.
mpUpdateLock.reset(new ConfigurationController::Lock(mxConfigurationController));
// Start polling for the printer having finished printing.
maPrinterPollingTimer.Start();
}
}
}
void SAL_CALL ShellStackGuard::disposing (
const lang::EventObject& rEvent)
throw (RuntimeException)
{
if (mxConfigurationController.is())
if (rEvent.Source == mxConfigurationController)
{
mxConfigurationController = NULL;
mpBase = NULL;
}
}
IMPL_LINK(ShellStackGuard, TimeoutHandler, Timer*, pTimer)
{
#ifdef DEBUG
OSL_ASSERT(pTimer==&maPrinterPollingTimer);
#else
(void)pTimer;
#endif
if (mpUpdateLock.get() != NULL)
{
if ( ! IsPrinting())
{
// Printing finished. Release the update lock.
mpUpdateLock.reset();
}
else
{
// Wait long for the printing to finish.
maPrinterPollingTimer.Start();
}
}
return 0;
}
bool ShellStackGuard::IsPrinting (void) const
{
if (mpBase != NULL)
{
SfxPrinter* pPrinter = mpBase->GetPrinter();
if (pPrinter != NULL
&& pPrinter->IsPrinting())
{
return true;
}
}
return false;
}
} } // end of namespace sd::framework
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */