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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 : #ifndef INCLUDED_SVX_SOURCE_INC_FMEXCH_HXX
20 : #define INCLUDED_SVX_SOURCE_INC_FMEXCH_HXX
21 :
22 : #include <sal/config.h>
23 :
24 : #include <set>
25 :
26 : #include <svtools/transfer.hxx>
27 : #include <com/sun/star/uno/Sequence.hxx>
28 : #include <com/sun/star/container/XNameContainer.hpp>
29 : #include <com/sun/star/form/XForms.hpp>
30 : #include <tools/link.hxx>
31 :
32 : #include <svx/svxdllapi.h>
33 :
34 : class SvTreeListEntry;
35 :
36 :
37 : class SvTreeListBox;
38 :
39 :
40 : namespace svxform
41 : {
42 :
43 :
44 :
45 :
46 : typedef ::std::set< SvTreeListEntry* > ListBoxEntrySet;
47 :
48 :
49 : //= OLocalExchange
50 :
51 0 : class SVX_DLLPUBLIC OLocalExchange : public TransferableHelper
52 : {
53 : private:
54 : Link m_aClipboardListener;
55 : bool m_bDragging : 1;
56 : bool m_bClipboardOwner : 1;
57 :
58 : public:
59 : class GrantAccess
60 : {
61 : friend class OLocalExchangeHelper;
62 : };
63 :
64 : public:
65 : OLocalExchange( );
66 :
67 0 : bool isDragging() const { return m_bDragging; }
68 0 : bool isClipboardOwner() const { return m_bClipboardOwner; }
69 :
70 : void startDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions, const GrantAccess& );
71 : void copyToClipboard( vcl::Window* _pWindow, const GrantAccess& );
72 :
73 0 : void setClipboardListener( const Link& _rListener ) { m_aClipboardListener = _rListener; }
74 :
75 : void clear();
76 :
77 : static bool hasFormat( const DataFlavorExVector& _rFormats, sal_uInt32 _nFormatId );
78 :
79 : protected:
80 : // XClipboardOwner
81 : virtual void SAL_CALL lostOwnership( const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::clipboard::XClipboard >& _rxClipboard, const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTrans ) throw(::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
82 :
83 : // TransferableHelper
84 : virtual void DragFinished( sal_Int8 nDropAction ) SAL_OVERRIDE;
85 : virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) SAL_OVERRIDE;
86 :
87 : private:
88 0 : void StartDrag( vcl::Window* pWindow, sal_Int8 nDragSourceActions, sal_Int32 nDragPointer = DND_POINTER_NONE, sal_Int32 nDragImage = DND_IMAGE_NONE )
89 : { // don't allow this base class method to be called from outside
90 0 : TransferableHelper::StartDrag(pWindow, nDragSourceActions, nDragPointer, nDragImage);
91 0 : }
92 : };
93 :
94 :
95 : //= OLocalExchangeHelper
96 :
97 : /// a helper for navigator windows (SvTreeListBox'es) which allow DnD within themself
98 : class SVX_DLLPUBLIC OLocalExchangeHelper
99 : {
100 : protected:
101 : vcl::Window* m_pDragSource;
102 : OLocalExchange* m_pTransferable;
103 :
104 : public:
105 : OLocalExchangeHelper( vcl::Window* _pDragSource );
106 : virtual ~OLocalExchangeHelper();
107 :
108 : void prepareDrag( );
109 :
110 : void startDrag( sal_Int8 nDragSourceActions );
111 : void copyToClipboard( ) const;
112 :
113 0 : inline bool isDragSource() const { return m_pTransferable && m_pTransferable->isDragging(); }
114 0 : inline bool isClipboardOwner() const { return m_pTransferable && m_pTransferable->isClipboardOwner(); }
115 0 : inline bool isDataExchangeActive( ) const { return isDragSource() || isClipboardOwner(); }
116 0 : inline void clear() { if ( isDataExchangeActive() ) m_pTransferable->clear(); }
117 :
118 0 : SVX_DLLPRIVATE void setClipboardListener( const Link& _rListener ) { if ( m_pTransferable ) m_pTransferable->setClipboardListener( _rListener ); }
119 :
120 : protected:
121 : SVX_DLLPRIVATE virtual OLocalExchange* createExchange() const = 0;
122 :
123 : protected:
124 : SVX_DLLPRIVATE void implReset();
125 : };
126 :
127 0 : class OControlTransferData
128 : {
129 : private:
130 : typedef ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< sal_uInt32 > > ControlPaths;
131 :
132 : private:
133 : DataFlavorExVector m_aCurrentFormats;
134 :
135 : protected:
136 : ListBoxEntrySet m_aSelectedEntries;
137 : ControlPaths m_aControlPaths;
138 : ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >
139 : m_aHiddenControlModels;
140 :
141 : ::com::sun::star::uno::Reference< ::com::sun::star::form::XForms >
142 : m_xFormsRoot; // the root of the forms collection where the entries we represent reside
143 : // this uniquely identifies the page and the document
144 :
145 : SvTreeListEntry* m_pFocusEntry;
146 :
147 : protected:
148 : // updates m_aCurrentFormats with all formats we currently could supply
149 : void updateFormats( );
150 :
151 : public:
152 : OControlTransferData( );
153 :
154 : // ctor to construct the data from an arbitrary Transferable (usually clipboard data)
155 : OControlTransferData(
156 : const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTransferable
157 : );
158 :
159 : inline const DataFlavorExVector& GetDataFlavorExVector() const;
160 :
161 : void addSelectedEntry( SvTreeListEntry* _pEntry );
162 : void setFocusEntry( SvTreeListEntry* _pFocusEntry );
163 :
164 : /** notifies the data transfer object that a certain entry has been removed from the owning tree
165 :
166 : In case the removed entry is part of the transfer object's selection, the entry is removed from
167 : the selection.
168 :
169 : @param _pEntry
170 : @return the number of entries remaining in the selection.
171 : */
172 : size_t onEntryRemoved( SvTreeListEntry* _pEntry );
173 :
174 0 : void setFormsRoot(
175 : const ::com::sun::star::uno::Reference< ::com::sun::star::form::XForms >& _rxFormsRoot
176 0 : ) { m_xFormsRoot = _rxFormsRoot; }
177 :
178 : void buildPathFormat(SvTreeListBox* pTreeBox, SvTreeListEntry* pRoot);
179 : // baut aus m_aSelectedEntries m_aControlPaths auf
180 : // (es wird davon ausgegangen, dass die Eintraege in m_aSelectedEntries sortiert sind in Bezug auf die Nachbar-Beziehung)
181 :
182 :
183 : void buildListFromPath(SvTreeListBox* pTreeBox, SvTreeListEntry* pRoot);
184 : // der umgekehrte Weg : wirft alles aus m_aSelectedEntries weg und baut es mittels m_aControlPaths neu auf
185 :
186 : void addHiddenControlsFormat(const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >& seqInterfaces);
187 : // fuegt ein SVX_FML_HIDDEN_CONTROLS-Format hinzu und merk sich dafuer die uebergebenen Interfaces
188 : // (es erfolgt KEINE Ueberpruefung, ob dadurch auch tatsaechlich nur hidden Controls bezeichnet werden, dass muss der
189 : // Aufrufer sicherstellen)
190 :
191 : SvTreeListEntry* focused() const { return m_pFocusEntry; }
192 0 : const ListBoxEntrySet& selected() const { return m_aSelectedEntries; }
193 : ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >
194 0 : hiddenControls() const { return m_aHiddenControlModels; }
195 :
196 : ::com::sun::star::uno::Reference< ::com::sun::star::form::XForms >
197 0 : getFormsRoot() const { return m_xFormsRoot; }
198 : };
199 :
200 :
201 0 : inline const DataFlavorExVector& OControlTransferData::GetDataFlavorExVector() const
202 : {
203 0 : const_cast< OControlTransferData* >( this )->updateFormats( );
204 0 : return m_aCurrentFormats;
205 : }
206 :
207 0 : class OControlExchange : public OLocalExchange, public OControlTransferData
208 : {
209 : public:
210 : OControlExchange( );
211 :
212 : public:
213 : static sal_uInt32 getFieldExchangeFormatId( );
214 : static sal_uInt32 getControlPathFormatId( );
215 : static sal_uInt32 getHiddenControlModelsFormatId( );
216 :
217 : inline static bool hasFieldExchangeFormat( const DataFlavorExVector& _rFormats );
218 : inline static bool hasControlPathFormat( const DataFlavorExVector& _rFormats );
219 : inline static bool hasHiddenControlModelsFormat( const DataFlavorExVector& _rFormats );
220 :
221 : protected:
222 : virtual bool GetData( const css::datatransfer::DataFlavor& rFlavor, const OUString& rDestDoc ) SAL_OVERRIDE;
223 : virtual void AddSupportedFormats() SAL_OVERRIDE;
224 : };
225 :
226 0 : class OControlExchangeHelper : public OLocalExchangeHelper
227 : {
228 : public:
229 0 : OControlExchangeHelper(vcl::Window* _pDragSource) : OLocalExchangeHelper(_pDragSource) { }
230 :
231 0 : OControlExchange* operator->() const { return static_cast< OControlExchange* >( m_pTransferable ); }
232 0 : OControlExchange& operator*() const { return *static_cast< OControlExchange* >( m_pTransferable ); }
233 :
234 : protected:
235 : virtual OLocalExchange* createExchange() const SAL_OVERRIDE;
236 : };
237 :
238 :
239 :
240 0 : inline bool OControlExchange::hasFieldExchangeFormat( const DataFlavorExVector& _rFormats )
241 : {
242 0 : return hasFormat( _rFormats, getFieldExchangeFormatId() );
243 : }
244 :
245 0 : inline bool OControlExchange::hasControlPathFormat( const DataFlavorExVector& _rFormats )
246 : {
247 0 : return hasFormat( _rFormats, getControlPathFormatId() );
248 : }
249 :
250 0 : inline bool OControlExchange::hasHiddenControlModelsFormat( const DataFlavorExVector& _rFormats )
251 : {
252 0 : return hasFormat( _rFormats, getHiddenControlModelsFormatId() );
253 : }
254 :
255 :
256 : } // namespace svxform
257 :
258 :
259 : #endif
260 :
261 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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