xref: /AOO41X/main/dbaccess/source/ui/browser/dsbrowserDnD.cxx (revision 96de54900b79e13b861fbc62cbf36018b54e21b7)
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_dbaccess.hxx"
26 
27 #include "dbexchange.hxx"
28 #include "dbtreelistbox.hxx"
29 #include "dbtreemodel.hxx"
30 #include "dbtreeview.hxx"
31 #include "dbu_brw.hrc"
32 #include "dbustrings.hrc"
33 #include "QEnumTypes.hxx"
34 #include "UITools.hxx"
35 #include "unodatbr.hxx"
36 
37 /** === begin UNO includes === **/
38 #include <com/sun/star/frame/XStorable.hpp>
39 #include <com/sun/star/sdb/CommandType.hpp>
40 #include <com/sun/star/sdbc/XConnection.hpp>
41 /** === end UNO includes === **/
42 
43 #include <connectivity/dbexception.hxx>
44 #include <connectivity/dbtools.hxx>
45 #include <cppuhelper/exc_hlp.hxx>
46 #include <svtools/treelist.hxx>
47 #include <svx/dataaccessdescriptor.hxx>
48 #include <tools/diagnose_ex.h>
49 
50 #include <functional>
51 // .........................................................................
52 namespace dbaui
53 {
54 // .........................................................................
55 
56     using namespace ::com::sun::star::uno;
57     using namespace ::com::sun::star::sdb;
58     using namespace ::com::sun::star::sdbc;
59     using namespace ::com::sun::star::sdbcx;
60     using namespace ::com::sun::star::beans;
61     using namespace ::com::sun::star::util;
62     using namespace ::com::sun::star::frame;
63     using namespace ::com::sun::star::container;
64     using namespace ::com::sun::star::lang;
65     using namespace ::com::sun::star::form;
66     using namespace ::com::sun::star::io;
67     using namespace ::com::sun::star::i18n;
68     using namespace ::com::sun::star::task;
69     using namespace ::com::sun::star::datatransfer;
70     using namespace ::dbtools;
71     using namespace ::svx;
72 
73     // -----------------------------------------------------------------------------
implCopyObject(SvLBoxEntry * _pApplyTo,sal_Int32 _nCommandType,sal_Bool _bAllowConnection)74     TransferableHelper* SbaTableQueryBrowser::implCopyObject( SvLBoxEntry* _pApplyTo, sal_Int32 _nCommandType, sal_Bool _bAllowConnection )
75     {
76         try
77         {
78             ::rtl::OUString aName = GetEntryText( _pApplyTo );
79             ::rtl::OUString aDSName = getDataSourceAcessor( m_pTreeView->getListBox().GetRootLevelParent( _pApplyTo ) );
80 
81             ODataClipboard* pData = NULL;
82             SharedConnection xConnection;
83             if ( CommandType::QUERY != _nCommandType )
84             {
85                 if ( _bAllowConnection && !ensureConnection( _pApplyTo, xConnection) )
86                     return NULL;
87                 pData = new ODataClipboard(aDSName, _nCommandType, aName, xConnection, getNumberFormatter(), getORB());
88             }
89             else
90                 pData = new ODataClipboard(aDSName, _nCommandType, aName, getNumberFormatter(), getORB());
91 
92             // the owner ship goes to ODataClipboards
93             return pData;
94         }
95         catch(const SQLException& )
96         {
97             showError( SQLExceptionInfo( ::cppu::getCaughtException() ) );
98         }
99         catch( const Exception& )
100         {
101             DBG_UNHANDLED_EXCEPTION();
102         }
103         return NULL;
104     }
105     // -----------------------------------------------------------------------------
queryDrop(const AcceptDropEvent & _rEvt,const DataFlavorExVector & _rFlavors)106     sal_Int8 SbaTableQueryBrowser::queryDrop( const AcceptDropEvent& _rEvt, const DataFlavorExVector& _rFlavors )
107     {
108         // check if we're a table or query container
109         SvLBoxEntry* pHitEntry = m_pTreeView->getListBox().GetEntry( _rEvt.maPosPixel );
110 
111         if ( pHitEntry ) // no drop if no entry was hit ....
112         {
113             // it must be a container
114             EntryType eEntryType = getEntryType( pHitEntry );
115             SharedConnection xConnection;
116             if ( eEntryType == etTableContainer && ensureConnection( pHitEntry, xConnection ) && xConnection.is() )
117             {
118                 Reference<XChild> xChild(xConnection,UNO_QUERY);
119                 Reference<XStorable> xStore(xChild.is() ? getDataSourceOrModel(xChild->getParent()) : Reference<XInterface>(),UNO_QUERY);
120                 // check for the concrete type
121                 if ( xStore.is() && !xStore->isReadonly() && ::std::find_if(_rFlavors.begin(),_rFlavors.end(),TAppSupportedSotFunctor(E_TABLE,sal_True)) != _rFlavors.end())
122                     return DND_ACTION_COPY;
123             }
124         }
125 
126         return DND_ACTION_NONE;
127     }
128     // -----------------------------------------------------------------------------
executeDrop(const ExecuteDropEvent & _rEvt)129     sal_Int8 SbaTableQueryBrowser::executeDrop( const ExecuteDropEvent& _rEvt )
130     {
131         SvLBoxEntry* pHitEntry = m_pTreeView->getListBox().GetEntry( _rEvt.maPosPixel );
132         EntryType eEntryType = getEntryType( pHitEntry );
133         if (!isContainer(eEntryType))
134         {
135             DBG_ERROR("SbaTableQueryBrowser::executeDrop: what the hell did queryDrop do?");
136                 // queryDrop shoud not have allowed us to reach this situation ....
137             return DND_ACTION_NONE;
138         }
139         // a TransferableDataHelper for accessing the dropped data
140         TransferableDataHelper aDroppedData(_rEvt.maDropEvent.Transferable);
141 
142 
143         // reset the data of the previous async drop (if any)
144         if ( m_nAsyncDrop )
145             Application::RemoveUserEvent(m_nAsyncDrop);
146 
147 
148         m_nAsyncDrop = 0;
149         m_aAsyncDrop.aDroppedData.clear();
150         m_aAsyncDrop.nType          = E_TABLE;
151         m_aAsyncDrop.nAction        = _rEvt.mnAction;
152         m_aAsyncDrop.bError         = sal_False;
153         m_aAsyncDrop.bHtml          = sal_False;
154         m_aAsyncDrop.pDroppedAt     = NULL;
155         m_aAsyncDrop.aUrl           = ::rtl::OUString();
156 
157 
158         // loop through the available formats and see what we can do ...
159         // first we have to check if it is our own format, if not we have to copy the stream :-(
160         if ( ODataAccessObjectTransferable::canExtractObjectDescriptor(aDroppedData.GetDataFlavorExVector()) )
161         {
162             m_aAsyncDrop.aDroppedData   = ODataAccessObjectTransferable::extractObjectDescriptor(aDroppedData);
163             m_aAsyncDrop.pDroppedAt     = pHitEntry;
164 
165             // asyncron because we some dialogs and we aren't allowed to show them while in D&D
166             m_nAsyncDrop = Application::PostUserEvent(LINK(this, SbaTableQueryBrowser, OnAsyncDrop));
167             return DND_ACTION_COPY;
168         }
169         else
170         {
171             SharedConnection xDestConnection;
172             if (  ensureConnection( pHitEntry, xDestConnection )
173                && xDestConnection.is()
174                && m_aTableCopyHelper.copyTagTable( aDroppedData, m_aAsyncDrop, xDestConnection )
175                )
176             {
177                 m_aAsyncDrop.pDroppedAt = pHitEntry;
178 
179                 // asyncron because we some dialogs and we aren't allowed to show them while in D&D
180                 m_nAsyncDrop = Application::PostUserEvent(LINK(this, SbaTableQueryBrowser, OnAsyncDrop));
181                 return DND_ACTION_COPY;
182             }
183         }
184 
185         return DND_ACTION_NONE;
186     }
187 
188     // -----------------------------------------------------------------------------
requestDrag(sal_Int8,const Point & _rPosPixel)189     sal_Bool SbaTableQueryBrowser::requestDrag( sal_Int8 /*_nAction*/, const Point& _rPosPixel )
190     {
191         // get the affected list entry
192         // ensure that the entry which the user clicked at is selected
193         SvLBoxEntry* pHitEntry = m_pTreeView->getListBox().GetEntry( _rPosPixel );
194         if (!pHitEntry)
195             // no drag of no entry was hit ....
196             return sal_False;
197 
198         // it must be a query/table
199         EntryType eEntryType = getEntryType( pHitEntry );
200         if (!isObject(eEntryType))
201             return DND_ACTION_NONE;
202 
203         TransferableHelper* pTransfer = implCopyObject( pHitEntry, ( etTableOrView == eEntryType ) ? CommandType::TABLE : CommandType::QUERY);
204         Reference< XTransferable> xEnsureDelete = pTransfer;
205 
206         if (pTransfer)
207             pTransfer->StartDrag( &m_pTreeView->getListBox(), DND_ACTION_COPY );
208 
209         return NULL != pTransfer;
210     }
211     // -----------------------------------------------------------------------------
212     IMPL_LINK(SbaTableQueryBrowser, OnCopyEntry, void*, /*NOTINTERESIN*/)
213     {
214         SvLBoxEntry* pSelected = m_pTreeView->getListBox().FirstSelected();
215         if( isEntryCopyAllowed( pSelected ) )
216             copyEntry( pSelected );
217         return 0;
218     }
219     // -----------------------------------------------------------------------------
isEntryCopyAllowed(SvLBoxEntry * _pEntry) const220     sal_Bool SbaTableQueryBrowser::isEntryCopyAllowed(SvLBoxEntry* _pEntry) const
221     {
222         EntryType eType = getEntryType(_pEntry);
223         return  ( eType == etTableOrView || eType == etQuery );
224     }
225     // -----------------------------------------------------------------------------
copyEntry(SvLBoxEntry * _pEntry)226     void SbaTableQueryBrowser::copyEntry(SvLBoxEntry* _pEntry)
227     {
228         TransferableHelper* pTransfer = NULL;
229         Reference< XTransferable> aEnsureDelete;
230         EntryType eType = getEntryType(_pEntry);
231         pTransfer       = implCopyObject( _pEntry, eType == etQuery ? CommandType::QUERY : CommandType::TABLE);
232         aEnsureDelete   = pTransfer;
233         if (pTransfer)
234             pTransfer->CopyToClipboard(getView());
235     }
236     // -----------------------------------------------------------------------------
237     IMPL_LINK( SbaTableQueryBrowser, OnAsyncDrop, void*, /*NOTINTERESTEDIN*/ )
238     {
239         m_nAsyncDrop = 0;
240         ::vos::OGuard aSolarGuard( Application::GetSolarMutex() );
241         ::osl::MutexGuard aGuard( getMutex() );
242 
243         if ( m_aAsyncDrop.nType == E_TABLE )
244         {
245             SharedConnection xDestConnection;
246             if ( ensureConnection( m_aAsyncDrop.pDroppedAt, xDestConnection ) && xDestConnection.is() )
247             {
248                 SvLBoxEntry* pDataSourceEntry = m_pTreeView->getListBox().GetRootLevelParent(m_aAsyncDrop.pDroppedAt);
249                 m_aTableCopyHelper.asyncCopyTagTable( m_aAsyncDrop, getDataSourceAcessor( pDataSourceEntry ), xDestConnection );
250             }
251         }
252 
253         m_aAsyncDrop.aDroppedData.clear();
254 
255         return 0L;
256     }
257     // -----------------------------------------------------------------------------
clearTreeModel()258     void SbaTableQueryBrowser::clearTreeModel()
259     {
260         if (m_pTreeModel)
261         {
262             // clear the user data of the tree model
263             SvLBoxEntry* pEntryLoop = m_pTreeModel->First();
264             while (pEntryLoop)
265             {
266                 DBTreeListUserData* pData = static_cast<DBTreeListUserData*>(pEntryLoop->GetUserData());
267                 if(pData)
268                 {
269                     pEntryLoop->SetUserData(NULL);
270                     Reference< XContainer > xContainer(pData->xContainer, UNO_QUERY);
271                     if (xContainer.is())
272                         xContainer->removeContainerListener(this);
273 
274                     if ( pData->xConnection.is() )
275                     {
276                         DBG_ASSERT( impl_isDataSourceEntry( pEntryLoop ), "SbaTableQueryBrowser::clearTreeModel: no data source entry, but a connection?" );
277                         // connections are to be stored *only* at the data source entries
278                         impl_releaseConnection( pData->xConnection );
279                     }
280 
281                     delete pData;
282                 }
283                 pEntryLoop = m_pTreeModel->Next(pEntryLoop);
284             }
285         }
286         m_pCurrentlyDisplayed = NULL;
287     }
288 // .........................................................................
289 }   // namespace dbaui
290 // .........................................................................
291 
292