Files
libreoffice/dbaccess/source/ui/browser/dsbrowserDnD.cxx
Tor Lillqvist d2ac4c3e68 'Ownership' is one word, as is 'relationship'
Change-Id: I45c441f68ed5f20cfc87e34e7bfb529a30952f81
2015-01-23 16:23:26 +02:00

270 lines
11 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 "dbexchange.hxx"
#include "dbtreelistbox.hxx"
#include "dbtreemodel.hxx"
#include "dbtreeview.hxx"
#include "dbu_brw.hrc"
#include "dbustrings.hrc"
#include "QEnumTypes.hxx"
#include "UITools.hxx"
#include "unodatbr.hxx"
#include <com/sun/star/frame/XStorable.hpp>
#include <com/sun/star/sdb/CommandType.hpp>
#include <com/sun/star/sdbc/XConnection.hpp>
#include <connectivity/dbexception.hxx>
#include <connectivity/dbtools.hxx>
#include <cppuhelper/exc_hlp.hxx>
#include <svx/dataaccessdescriptor.hxx>
#include <tools/diagnose_ex.h>
#include <osl/diagnose.h>
#include "svtools/treelistentry.hxx"
#include <functional>
namespace dbaui
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::form;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::i18n;
using namespace ::com::sun::star::task;
using namespace ::com::sun::star::datatransfer;
using namespace ::dbtools;
using namespace ::svx;
TransferableHelper* SbaTableQueryBrowser::implCopyObject( SvTreeListEntry* _pApplyTo, sal_Int32 _nCommandType, bool _bAllowConnection )
{
try
{
OUString aName = GetEntryText( _pApplyTo );
OUString aDSName = getDataSourceAcessor( m_pTreeView->getListBox().GetRootLevelParent( _pApplyTo ) );
ODataClipboard* pData = NULL;
SharedConnection xConnection;
if ( CommandType::QUERY != _nCommandType )
{
if ( _bAllowConnection && !ensureConnection( _pApplyTo, xConnection) )
return NULL;
pData = new ODataClipboard(aDSName, _nCommandType, aName, xConnection, getNumberFormatter(), getORB());
}
else
pData = new ODataClipboard(aDSName, _nCommandType, aName, getNumberFormatter(), getORB());
// the ownership goes to ODataClipboards
return pData;
}
catch(const SQLException& )
{
showError( SQLExceptionInfo( ::cppu::getCaughtException() ) );
}
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION();
}
return NULL;
}
sal_Int8 SbaTableQueryBrowser::queryDrop( const AcceptDropEvent& _rEvt, const DataFlavorExVector& _rFlavors )
{
// check if we're a table or query container
SvTreeListEntry* pHitEntry = m_pTreeView->getListBox().GetEntry( _rEvt.maPosPixel );
if ( pHitEntry ) // no drop if no entry was hit ....
{
// it must be a container
EntryType eEntryType = getEntryType( pHitEntry );
SharedConnection xConnection;
if ( eEntryType == etTableContainer && ensureConnection( pHitEntry, xConnection ) && xConnection.is() )
{
Reference<XChild> xChild(xConnection,UNO_QUERY);
Reference<XStorable> xStore;
xStore = Reference<XStorable>( xChild.is() ? getDataSourceOrModel(xChild->getParent()) : Reference<XInterface>(),UNO_QUERY );
// check for the concrete type
if ( xStore.is() && !xStore->isReadonly() && ::std::find_if(_rFlavors.begin(),_rFlavors.end(),TAppSupportedSotFunctor(E_TABLE,true)) != _rFlavors.end())
return DND_ACTION_COPY;
}
}
return DND_ACTION_NONE;
}
sal_Int8 SbaTableQueryBrowser::executeDrop( const ExecuteDropEvent& _rEvt )
{
SvTreeListEntry* pHitEntry = m_pTreeView->getListBox().GetEntry( _rEvt.maPosPixel );
EntryType eEntryType = getEntryType( pHitEntry );
if (!isContainer(eEntryType))
{
OSL_FAIL("SbaTableQueryBrowser::executeDrop: what the hell did queryDrop do?");
// queryDrop should not have allowed us to reach this situation ....
return DND_ACTION_NONE;
}
// a TransferableDataHelper for accessing the dropped data
TransferableDataHelper aDroppedData(_rEvt.maDropEvent.Transferable);
// reset the data of the previous async drop (if any)
if ( m_nAsyncDrop )
Application::RemoveUserEvent(m_nAsyncDrop);
m_nAsyncDrop = 0;
m_aAsyncDrop.aDroppedData.clear();
m_aAsyncDrop.nType = E_TABLE;
m_aAsyncDrop.nAction = _rEvt.mnAction;
m_aAsyncDrop.bError = false;
m_aAsyncDrop.bHtml = false;
m_aAsyncDrop.pDroppedAt = NULL;
m_aAsyncDrop.aUrl.clear();
// loop through the available formats and see what we can do ...
// first we have to check if it is our own format, if not we have to copy the stream :-(
if ( ODataAccessObjectTransferable::canExtractObjectDescriptor(aDroppedData.GetDataFlavorExVector()) )
{
m_aAsyncDrop.aDroppedData = ODataAccessObjectTransferable::extractObjectDescriptor(aDroppedData);
m_aAsyncDrop.pDroppedAt = pHitEntry;
// asyncron because we some dialogs and we aren't allowed to show them while in D&D
m_nAsyncDrop = Application::PostUserEvent(LINK(this, SbaTableQueryBrowser, OnAsyncDrop));
return DND_ACTION_COPY;
}
else
{
SharedConnection xDestConnection;
if ( ensureConnection( pHitEntry, xDestConnection )
&& xDestConnection.is()
&& m_aTableCopyHelper.copyTagTable( aDroppedData, m_aAsyncDrop, xDestConnection )
)
{
m_aAsyncDrop.pDroppedAt = pHitEntry;
// asyncron because we some dialogs and we aren't allowed to show them while in D&D
m_nAsyncDrop = Application::PostUserEvent(LINK(this, SbaTableQueryBrowser, OnAsyncDrop));
return DND_ACTION_COPY;
}
}
return DND_ACTION_NONE;
}
bool SbaTableQueryBrowser::requestDrag( sal_Int8 /*_nAction*/, const Point& _rPosPixel )
{
// get the affected list entry
// ensure that the entry which the user clicked at is selected
SvTreeListEntry* pHitEntry = m_pTreeView->getListBox().GetEntry( _rPosPixel );
if (!pHitEntry)
// no drag of no entry was hit ....
return false;
// it must be a query/table
EntryType eEntryType = getEntryType( pHitEntry );
if (!isObject(eEntryType))
return false;
TransferableHelper* pTransfer = implCopyObject( pHitEntry, ( etTableOrView == eEntryType ) ? CommandType::TABLE : CommandType::QUERY);
Reference< XTransferable> xEnsureDelete = pTransfer;
if (pTransfer)
pTransfer->StartDrag( &m_pTreeView->getListBox(), DND_ACTION_COPY );
return NULL != pTransfer;
}
IMPL_LINK(SbaTableQueryBrowser, OnCopyEntry, void*, /*NOTINTERESIN*/)
{
SvTreeListEntry* pSelected = m_pTreeView->getListBox().FirstSelected();
if( isEntryCopyAllowed( pSelected ) )
copyEntry( pSelected );
return 0;
}
bool SbaTableQueryBrowser::isEntryCopyAllowed(SvTreeListEntry* _pEntry) const
{
EntryType eType = getEntryType(_pEntry);
return ( eType == etTableOrView || eType == etQuery );
}
void SbaTableQueryBrowser::copyEntry(SvTreeListEntry* _pEntry)
{
TransferableHelper* pTransfer = NULL;
Reference< XTransferable> aEnsureDelete;
EntryType eType = getEntryType(_pEntry);
pTransfer = implCopyObject( _pEntry, eType == etQuery ? CommandType::QUERY : CommandType::TABLE);
aEnsureDelete = pTransfer;
if (pTransfer)
pTransfer->CopyToClipboard(getView());
}
IMPL_LINK( SbaTableQueryBrowser, OnAsyncDrop, void*, /*NOTINTERESTEDIN*/ )
{
m_nAsyncDrop = 0;
SolarMutexGuard aSolarGuard;
::osl::MutexGuard aGuard( getMutex() );
if ( m_aAsyncDrop.nType == E_TABLE )
{
SharedConnection xDestConnection;
if ( ensureConnection( m_aAsyncDrop.pDroppedAt, xDestConnection ) && xDestConnection.is() )
{
SvTreeListEntry* pDataSourceEntry = m_pTreeView->getListBox().GetRootLevelParent(m_aAsyncDrop.pDroppedAt);
m_aTableCopyHelper.asyncCopyTagTable( m_aAsyncDrop, getDataSourceAcessor( pDataSourceEntry ), xDestConnection );
}
}
m_aAsyncDrop.aDroppedData.clear();
return 0L;
}
void SbaTableQueryBrowser::clearTreeModel()
{
if (m_pTreeModel)
{
// clear the user data of the tree model
SvTreeListEntry* pEntryLoop = m_pTreeModel->First();
while (pEntryLoop)
{
DBTreeListUserData* pData = static_cast<DBTreeListUserData*>(pEntryLoop->GetUserData());
if(pData)
{
pEntryLoop->SetUserData(NULL);
Reference< XContainer > xContainer(pData->xContainer, UNO_QUERY);
if (xContainer.is())
xContainer->removeContainerListener(this);
if ( pData->xConnection.is() )
{
OSL_ENSURE( impl_isDataSourceEntry( pEntryLoop ), "SbaTableQueryBrowser::clearTreeModel: no data source entry, but a connection?" );
// connections are to be stored *only* at the data source entries
impl_releaseConnection( pData->xConnection );
}
delete pData;
}
pEntryLoop = m_pTreeModel->Next(pEntryLoop);
}
}
m_pCurrentlyDisplayed = NULL;
}
} // namespace dbaui
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */