/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
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* 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 .
*/
#pragma once
#include <com/sun/star/ui/dialogs/XAsynchronousExecutableDialog.hpp>
#include <svtools/genericunodialog.hxx>
#include <vcl/svapp.hxx>
using namespace css::uno;
namespace svt
{
typedef cppu::ImplInheritanceHelper<::svt::OGenericUnoDialog,
css::ui::dialogs::XAsynchronousExecutableDialog>
OGenericUnoAsyncDialogBase;
/** abstract base class for implementing UNO objects representing asynchronous dialogs
Contrary to StartExecuteAsync in VclAbstractDialog from include / vcl / abstdlg . hxx ,
the different methods are used in a special case when an import or export action
wants to show a dialog , as part of a synchronous filter ( ) API call .
In this case it ' s not possible to move the " rest of the code " to an async
callback , so that needs special handling . Luckily these dialogs are rather rare .
*/
template <typename T> class OGenericUnoAsyncDialog : public OGenericUnoAsyncDialogBase
{
class UnoAsyncDialogEntryGuard
{
public :
UnoAsyncDialogEntryGuard(OGenericUnoAsyncDialog<T>& _rDialog)
: m_aGuard(_rDialog.GetMutex())
{
}
private :
::osl::MutexGuard m_aGuard;
};
protected :
std::shared_ptr<T> m_xAsyncDialog;
protected :
OGenericUnoAsyncDialog(const css::uno::Reference<css::uno::XComponentContext>& _rxContext)
: OGenericUnoAsyncDialogBase(_rxContext)
{
}
public :
// XAsynchronousExecutableDialog
void SAL_CALL setDialogTitle(const OUString& aTitle) override
{
OGenericUnoDialog::setTitle(aTitle);
}
virtual void SAL_CALL startExecuteModal(
const css::uno::Reference<css::ui::dialogs::XDialogClosedListener>& xListener) override
{
SolarMutexGuard aSolarGuard;
{
UnoAsyncDialogEntryGuard aGuard(*this );
if (m_bExecuting)
throw RuntimeException("already executing the dialog (recursive call)" , *this );
if (!m_xAsyncDialog)
{
m_xAsyncDialog = createAsyncDialog(m_xParent);
OSL_ENSURE(m_xAsyncDialog, "OGenericUnoAsyncDialog::startExecuteModal: "
"createAsyncDialog returned nonsense!" );
if (!m_xAsyncDialog)
return ;
// do some initialisations
if (!m_bTitleAmbiguous)
m_xAsyncDialog->set_title(m_sTitle);
}
m_bExecuting = true ;
}
runAsync(xListener);
}
protected :
virtual std::shared_ptr<T>
createAsyncDialog(const css::uno::Reference<css::awt::XWindow>& /*rParent*/)
{
return nullptr;
}
void destroyAsyncDialog()
{
SolarMutexGuard aSolarGuard;
if (m_xAsyncDialog)
m_xAsyncDialog.reset();
}
virtual void
runAsync(const css::uno::Reference<css::ui::dialogs::XDialogClosedListener>& /*xListener*/)
{
}
virtual void executedAsyncDialog(std::shared_ptr<T> /*xAsyncDialog*/,
sal_Int32 /*_nExecutionResult*/)
{
}
};
} // namespace svt
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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