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/* -*- 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 .
*/
#ifndef _SVX_FMEXCH_HXX
#define _SVX_FMEXCH_HXX
#include <comphelper/stl_types.hxx>
#include <svtools/transfer.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/container/XNameContainer.hpp>
#include <tools/link.hxx>
#include <svx/svxdllapi.h>
class FmFormShell;
class FmFormPage;
class SvLBoxEntry;
//========================================================================
class SvTreeListBox;
//........................................................................
namespace svxform
{
//........................................................................
//====================================================================
typedef ::std::set< SvLBoxEntry* > ListBoxEntrySet;
//====================================================================
//= OLocalExchange
//====================================================================
class SVX_DLLPUBLIC OLocalExchange : public TransferableHelper
{
private:
Link m_aClipboardListener;
sal_Bool m_bDragging : 1;
sal_Bool m_bClipboardOwner : 1;
public:
class GrantAccess
{
friend class OLocalExchangeHelper;
};
public:
OLocalExchange( );
sal_Bool isDragging() const { return m_bDragging; }
sal_Bool isClipboardOwner() const { return m_bClipboardOwner; }
void startDrag( Window* pWindow, sal_Int8 nDragSourceActions, const GrantAccess& );
void copyToClipboard( Window* _pWindow, const GrantAccess& );
void setClipboardListener( const Link& _rListener ) { m_aClipboardListener = _rListener; }
void clear();
static sal_Bool hasFormat( const DataFlavorExVector& _rFormats, sal_uInt32 _nFormatId );
protected:
// XClipboardOwner
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);
// TransferableHelper
virtual void DragFinished( sal_Int8 nDropAction );
virtual sal_Bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
private:
void StartDrag( Window* pWindow, sal_Int8 nDragSourceActions, sal_Int32 nDragPointer = DND_POINTER_NONE, sal_Int32 nDragImage = DND_IMAGE_NONE )
{ // don't allow this base class method to be called from outside
TransferableHelper::StartDrag(pWindow, nDragSourceActions, nDragPointer, nDragImage);
}
};
//====================================================================
//= OLocalExchangeHelper
//====================================================================
/// a helper for navigator windows (SvTreeListBox'es) which allow DnD within themself
class SVX_DLLPUBLIC OLocalExchangeHelper
{
protected:
Window* m_pDragSource;
OLocalExchange* m_pTransferable;
public:
OLocalExchangeHelper( Window* _pDragSource );
virtual ~OLocalExchangeHelper();
void prepareDrag( );
void startDrag( sal_Int8 nDragSourceActions );
void copyToClipboard( ) const;
inline sal_Bool isDragSource() const { return m_pTransferable && m_pTransferable->isDragging(); }
inline sal_Bool isClipboardOwner() const { return m_pTransferable && m_pTransferable->isClipboardOwner(); }
inline sal_Bool isDataExchangeActive( ) const { return isDragSource() || isClipboardOwner(); }
inline void clear() { if ( isDataExchangeActive() ) m_pTransferable->clear(); }
SVX_DLLPRIVATE void setClipboardListener( const Link& _rListener ) { if ( m_pTransferable ) m_pTransferable->setClipboardListener( _rListener ); }
protected:
SVX_DLLPRIVATE virtual OLocalExchange* createExchange() const = 0;
protected:
SVX_DLLPRIVATE void implReset();
};
//====================================================================
//= OControlTransferData
//====================================================================
class OControlTransferData
{
private:
typedef ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< sal_uInt32 > > ControlPaths;
private:
DataFlavorExVector m_aCurrentFormats;
protected:
ListBoxEntrySet m_aSelectedEntries;
ControlPaths m_aControlPaths;
::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >
m_aHiddenControlModels;
::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >
m_xFormsRoot; // the root of the forms collection where the entries we represent reside
// this uniquely identifies the page and the document
SvLBoxEntry* m_pFocusEntry;
protected:
// updates m_aCurrentFormats with all formats we currently could supply
void updateFormats( );
public:
OControlTransferData( );
// ctor to construct the data from an arbitrary Transferable (usually clipboard data)
OControlTransferData(
const ::com::sun::star::uno::Reference< ::com::sun::star::datatransfer::XTransferable >& _rxTransferable
);
inline const DataFlavorExVector& GetDataFlavorExVector() const;
void addSelectedEntry( SvLBoxEntry* _pEntry );
void setFocusEntry( SvLBoxEntry* _pFocusEntry );
/** notifies the data transfer object that a certain entry has been removed from the owning tree
In case the removed entry is part of the transfer object's selection, the entry is removed from
the selection.
@param _pEntry
@return the number of entries remaining in the selection.
*/
size_t onEntryRemoved( SvLBoxEntry* _pEntry );
void setFormsRoot(
const ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >& _rxFormsRoot
) { m_xFormsRoot = _rxFormsRoot; }
void buildPathFormat(SvTreeListBox* pTreeBox, SvLBoxEntry* pRoot);
// baut aus m_aSelectedEntries m_aControlPaths auf
// (es wird davon ausgegangen, dass die Eintraege in m_aSelectedEntries sortiert sind in Bezug auf die Nachbar-Beziehung)
void buildListFromPath(SvTreeListBox* pTreeBox, SvLBoxEntry* pRoot);
// der umgekehrte Weg : wirft alles aus m_aSelectedEntries weg und baut es mittels m_aControlPaths neu auf
void addHiddenControlsFormat(const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > > seqInterfaces);
// fuegt ein SVX_FML_HIDDEN_CONTROLS-Format hinzu und merk sich dafuer die uebergebenen Interfaces
// (es erfolgt KEINE Ueberpruefung, ob dadurch auch tatsaechlich nur hidden Controls bezeichnet werden, dass muss der
// Aufrufer sicherstellen)
SvLBoxEntry* focused() const { return m_pFocusEntry; }
const ListBoxEntrySet& selected() const { return m_aSelectedEntries; }
::com::sun::star::uno::Sequence< ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > >
hiddenControls() const { return m_aHiddenControlModels; }
::com::sun::star::uno::Reference< ::com::sun::star::container::XNameContainer >
getFormsRoot() const { return m_xFormsRoot; }
};
//====================================================================
inline const DataFlavorExVector& OControlTransferData::GetDataFlavorExVector() const
{
const_cast< OControlTransferData* >( this )->updateFormats( );
return m_aCurrentFormats;
}
//====================================================================
//= OControlExchange
//====================================================================
class OControlExchange : public OLocalExchange, public OControlTransferData
{
public:
OControlExchange( );
public:
static sal_uInt32 getFieldExchangeFormatId( );
static sal_uInt32 getControlPathFormatId( );
static sal_uInt32 getHiddenControlModelsFormatId( );
inline static sal_Bool hasFieldExchangeFormat( const DataFlavorExVector& _rFormats );
inline static sal_Bool hasControlPathFormat( const DataFlavorExVector& _rFormats );
inline static sal_Bool hasHiddenControlModelsFormat( const DataFlavorExVector& _rFormats );
protected:
virtual sal_Bool GetData( const ::com::sun::star::datatransfer::DataFlavor& rFlavor );
virtual void AddSupportedFormats();
};
//====================================================================
//= OControlExchangeHelper
//====================================================================
class OControlExchangeHelper : public OLocalExchangeHelper
{
public:
OControlExchangeHelper(Window* _pDragSource) : OLocalExchangeHelper(_pDragSource) { }
OControlExchange* operator->() const { return static_cast< OControlExchange* >( m_pTransferable ); }
OControlExchange& operator*() const { return *static_cast< OControlExchange* >( m_pTransferable ); }
protected:
virtual OLocalExchange* createExchange() const;
};
//====================================================================
//====================================================================
inline sal_Bool OControlExchange::hasFieldExchangeFormat( const DataFlavorExVector& _rFormats )
{
return hasFormat( _rFormats, getFieldExchangeFormatId() );
}
inline sal_Bool OControlExchange::hasControlPathFormat( const DataFlavorExVector& _rFormats )
{
return hasFormat( _rFormats, getControlPathFormatId() );
}
inline sal_Bool OControlExchange::hasHiddenControlModelsFormat( const DataFlavorExVector& _rFormats )
{
return hasFormat( _rFormats, getHiddenControlModelsFormatId() );
}
//........................................................................
} // namespace svxform
//........................................................................
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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