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Diffstat (limited to 'fpicker/source/office/asyncfilepicker.cxx')
| -rw-r--r-- | fpicker/source/office/asyncfilepicker.cxx | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/fpicker/source/office/asyncfilepicker.cxx b/fpicker/source/office/asyncfilepicker.cxx new file mode 100644 index 000000000..349d586b8 --- /dev/null +++ b/fpicker/source/office/asyncfilepicker.cxx @@ -0,0 +1,183 @@ +/* -*- 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 "asyncfilepicker.hxx" +#include "fileview.hxx" +#include "iodlg.hxx" +#include <tools/debug.hxx> +#include <osl/diagnose.h> + +#include <memory> + + +namespace svt +{ + AsyncPickerAction::AsyncPickerAction( SvtFileDialog_Base* _pDialog, SvtFileView* _pView, const Action _eAction ) + :m_eAction ( _eAction ) + ,m_pView ( _pView ) + ,m_pDialog ( _pDialog ) + ,m_bRunning ( false ) + { + assert( m_pDialog && "AsyncPickerAction::AsyncPickerAction: invalid dialog!" ); + assert( m_pView && "AsyncPickerAction::AsyncPickerAction: invalid view!" ); + } + + + AsyncPickerAction::~AsyncPickerAction() + { + } + + + void AsyncPickerAction::cancel() + { + DBG_TESTSOLARMUTEX(); + // if this asserts, we'd need to have an own mutex per instance + + OSL_ENSURE( m_bRunning, "AsyncPickerAction::cancel: not running" ); + if ( m_pView ) + m_pView->CancelRunningAsyncAction(); + } + + + void AsyncPickerAction::execute( + const OUString& _rURL, + const OUString& _rFilter, + sal_Int32 _nMinTimeout, + sal_Int32 _nMaxTimeout, + const css::uno::Sequence< OUString >& rDenyList ) + { + DBG_TESTSOLARMUTEX(); + // if this asserts, we'd need to have an own mutex per instance + + sal_Int32 nMinTimeout = _nMinTimeout; + sal_Int32 nMaxTimeout = _nMaxTimeout; + // normalizations + if ( nMinTimeout < 0 ) + // if negative, this is considered as "do it synchronously" + nMinTimeout = 0; + else if ( nMinTimeout < 1000 ) + nMinTimeout = 1000; + if ( nMaxTimeout <= nMinTimeout ) + nMaxTimeout = nMinTimeout + 30000; + + std::unique_ptr< FileViewAsyncAction > pActionDescriptor; + if ( nMinTimeout ) + { + pActionDescriptor.reset( new FileViewAsyncAction ); + pActionDescriptor->nMinTimeout = nMinTimeout; + pActionDescriptor->nMaxTimeout = nMaxTimeout; + pActionDescriptor->aFinishHandler = LINK( this, AsyncPickerAction, OnActionDone ); + } + + FileViewResult eResult = eFailure; + m_sURL = _rURL; + switch ( m_eAction ) + { + case ePrevLevel: + eResult = m_pView->PreviousLevel( pActionDescriptor.get() ); + break; + + case eOpenURL: + eResult = m_pView->Initialize( _rURL, _rFilter, pActionDescriptor.get(), rDenyList ); + break; + + case eExecuteFilter: + // preserve the filename (FS: why?) + m_sFileName = m_pDialog->getCurrentFileText(); + // execute the new filter + eResult = m_pView->ExecuteFilter( _rFilter, pActionDescriptor.get() ); + break; + + default: + OSL_FAIL( "AsyncPickerAction::execute: unknown action!" ); + break; + } + + acquire(); + if ( ( eResult == eSuccess ) || ( eResult == eFailure ) ) + { + // the handler is only called if the action could not be finished within + // the given minimum time period. In case of success, we need to call it + // explicitly + OnActionDone( reinterpret_cast< void* >( eResult ) ); + } + else if ( eResult == eStillRunning ) + { + m_bRunning = true; + m_pDialog->onAsyncOperationStarted(); + } + } + + + IMPL_LINK( AsyncPickerAction, OnActionDone, void*, pEmptyArg, void ) + { + DBG_TESTSOLARMUTEX(); + // if this asserts, we'd need to have an own mutex per instance + + FileViewResult eResult = static_cast< FileViewResult >( reinterpret_cast< sal_IntPtr >( pEmptyArg ) ); + OSL_ENSURE( eStillRunning != eResult, "AsyncPickerAction::OnActionDone: invalid result!" ); + + // release once (since we acquired in |execute|), but keep alive until the + // end of the method + ::rtl::Reference< AsyncPickerAction > xKeepAlive( this ); + release(); + + m_pDialog->onAsyncOperationFinished(); + m_bRunning = true; + + if ( eFailure == eResult ) + // TODO: do we need some kind of cleanup here? + return; + + if ( eTimeout == eResult ) + { + SvtFileDialog::displayIOException( m_sURL, css::ucb::IOErrorCode_CANT_READ ); + return; + } + + OSL_ENSURE( eSuccess == eResult, "AsyncPickerAction::OnActionDone: what else valid results are there?" ); + + switch ( m_eAction ) + { + case ePrevLevel: + case eOpenURL: + m_pDialog->UpdateControls( m_pView->GetViewURL() ); + break; + + case eExecuteFilter: + // restore the filename + m_pView->SetNoSelection(); + m_pDialog->setCurrentFileText( m_sFileName, true ); + + // notify listeners + m_pDialog->FilterSelect(); + break; + + default: + OSL_FAIL( "AsyncPickerAction::OnActionDone: unknown action!" ); + break; + } + } + + +} // namespace svt + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |