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office-gobmx/svx/source/accessibility/AccessibleEmptyEditSource.cxx
Sebastian Spaeth 8694d2bc19 Add vim/emacs modelines to all source files 
Fixes #fdo30794
Based on bin/add-modelines script (originally posted in mail
1286706307.1871.1399280959@webmail.messagingengine.com)

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2010-10-13 10:57:58 +02:00

359 lines
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"
//------------------------------------------------------------------------
//
// Global header
//
//------------------------------------------------------------------------
#include <svl/itemset.hxx>
#include <editeng/editdata.hxx>
#include <editeng/outliner.hxx>
#include <svx/svdmodel.hxx>
#include <svx/svdobj.hxx>
#include <svx/svdpool.hxx>
//------------------------------------------------------------------------
//
// Project-local header
//
//------------------------------------------------------------------------
#include "AccessibleEmptyEditSource.hxx"
#include <svx/unoshtxt.hxx>
namespace accessibility
{
/** This class simply wraps a SvxTextEditSource, forwarding all
methods except the GetBroadcaster() call
*/
class AccessibleProxyEditSource_Impl : public SvxEditSource
{
public:
/** Construct AccessibleEmptyEditSource_Impl
@param rBrdCast
Proxy broadcaster to allow seamless flipping of edit source implementations. ProxyEditSource and EmptyEditSource
*/
AccessibleProxyEditSource_Impl( SdrObject& rObj,
SdrView& rView,
const Window& rViewWindow );
~AccessibleProxyEditSource_Impl();
// from the SvxEditSource interface
SvxTextForwarder* GetTextForwarder();
SvxViewForwarder* GetViewForwarder();
SvxEditViewForwarder* GetEditViewForwarder( sal_Bool bCreate = sal_False );
SvxEditSource* Clone() const;
void UpdateData();
SfxBroadcaster& GetBroadcaster() const;
private:
SvxTextEditSource maEditSource;
};
/** Dummy class, faking exactly one empty paragraph for EditEngine accessibility
*/
class AccessibleEmptyEditSource_Impl : public SvxEditSource, public SvxViewForwarder, public SvxTextForwarder, public SfxBroadcaster
{
public:
AccessibleEmptyEditSource_Impl() {}
~AccessibleEmptyEditSource_Impl() {}
// from the SfxListener interface
void Notify( SfxBroadcaster& rBC, const SfxHint& rHint );
// SvxEditSource
SvxTextForwarder* GetTextForwarder() { return this; }
SvxViewForwarder* GetViewForwarder() { return this; }
SvxEditSource* Clone() const { return NULL; }
void UpdateData() {}
SfxBroadcaster& GetBroadcaster() const { return *(const_cast<AccessibleEmptyEditSource_Impl*>(this)); }
// SvxTextForwarder
USHORT GetParagraphCount() const { return 1; }
USHORT GetTextLen( USHORT /*nParagraph*/ ) const { return 0; }
String GetText( const ESelection& /*rSel*/ ) const { return String(); }
SfxItemSet GetAttribs( const ESelection& /*rSel*/, BOOL /*bOnlyHardAttrib*/ = 0 ) const
{
// AW: Very dangerous: The former implementation used a SfxItemPool created on the
// fly which of course was deleted again ASAP. Thus, the returned SfxItemSet was using
// a deleted Pool by design.
return SfxItemSet(SdrObject::GetGlobalDrawObjectItemPool());
}
SfxItemSet GetParaAttribs( USHORT /*nPara*/ ) const { return GetAttribs(ESelection()); }
void SetParaAttribs( USHORT /*nPara*/, const SfxItemSet& /*rSet*/ ) {}
void RemoveAttribs( const ESelection& /*rSelection*/, sal_Bool /*bRemoveParaAttribs*/, sal_uInt16 /*nWhich*/ ){}
void GetPortions( USHORT /*nPara*/, SvUShorts& /*rList*/ ) const {}
USHORT GetItemState( const ESelection& /*rSel*/, USHORT /*nWhich*/ ) const { return 0; }
USHORT GetItemState( USHORT /*nPara*/, USHORT /*nWhich*/ ) const { return 0; }
SfxItemPool* GetPool() const { return NULL; }
void QuickInsertText( const String& /*rText*/, const ESelection& /*rSel*/ ) {}
void QuickInsertField( const SvxFieldItem& /*rFld*/, const ESelection& /*rSel*/ ) {}
void QuickSetAttribs( const SfxItemSet& /*rSet*/, const ESelection& /*rSel*/ ) {}
void QuickInsertLineBreak( const ESelection& /*rSel*/ ) {}
const SfxItemSet * GetEmptyItemSetPtr() { return 0; }
void AppendParagraph() {}
xub_StrLen AppendTextPortion( USHORT /*nPara*/, const String & /*rText*/, const SfxItemSet & /*rSet*/ ) { return 0; }
//XTextCopy
void CopyText(const SvxTextForwarder& ){}
XubString CalcFieldValue( const SvxFieldItem& /*rField*/, USHORT /*nPara*/, USHORT /*nPos*/, Color*& /*rpTxtColor*/, Color*& /*rpFldColor*/ )
{
return XubString();
}
void FieldClicked( const SvxFieldItem&, USHORT, xub_StrLen ) {;}
BOOL IsValid() const { return sal_True; }
void SetNotifyHdl( const Link& ) {}
LanguageType GetLanguage( USHORT, USHORT ) const { return LANGUAGE_DONTKNOW; }
USHORT GetFieldCount( USHORT ) const { return 0; }
EFieldInfo GetFieldInfo( USHORT, USHORT ) const { return EFieldInfo(); }
EBulletInfo GetBulletInfo( USHORT ) const { return EBulletInfo(); }
Rectangle GetCharBounds( USHORT, USHORT ) const { return Rectangle(); }
Rectangle GetParaBounds( USHORT ) const { return Rectangle(); }
MapMode GetMapMode() const { return MapMode(); }
OutputDevice* GetRefDevice() const { return NULL; }
sal_Bool GetIndexAtPoint( const Point&, USHORT&, USHORT& ) const { return sal_False; }
sal_Bool GetWordIndices( USHORT, USHORT, USHORT&, USHORT& ) const { return sal_False; }
sal_Bool GetAttributeRun( USHORT&, USHORT&, USHORT, USHORT ) const { return sal_False; }
USHORT GetLineCount( USHORT nPara ) const { return nPara == 0 ? 1 : 0; }
USHORT GetLineLen( USHORT, USHORT ) const { return 0; }
void GetLineBoundaries( /*out*/USHORT & rStart, /*out*/USHORT & rEnd, USHORT /*nParagraph*/, USHORT /*nLine*/ ) const { rStart = rEnd = 0; }
USHORT GetLineNumberAtIndex( USHORT /*nPara*/, USHORT /*nIndex*/ ) const { return 0; }
// the following two methods would, strictly speaking, require
// a switch to a real EditSource, too. Fortunately, the
// AccessibleEditableTextPara implementation currently always
// calls GetEditViewForwarder(true) before doing
// changes. Thus, we rely on this behabviour here (problem
// when that changes: via accessibility API, it would no
// longer be possible to enter text in previously empty
// shapes).
sal_Bool Delete( const ESelection& ) { return sal_False; }
sal_Bool InsertText( const String&, const ESelection& ) { return sal_False; }
sal_Bool QuickFormatDoc( BOOL ) { return sal_True; }
sal_Int16 GetDepth( USHORT ) const { return -1; }
sal_Bool SetDepth( USHORT, sal_Int16 ) { return sal_True; }
Rectangle GetVisArea() const { return Rectangle(); }
Point LogicToPixel( const Point& rPoint, const MapMode& /*rMapMode*/ ) const { return rPoint; }
Point PixelToLogic( const Point& rPoint, const MapMode& /*rMapMode*/ ) const { return rPoint; }
};
// -------------------------------------------------------------------------
// Implementing AccessibleProxyEditSource_Impl
// -------------------------------------------------------------------------
AccessibleProxyEditSource_Impl::AccessibleProxyEditSource_Impl( SdrObject& rObj,
SdrView& rView,
const Window& rViewWindow ) :
maEditSource( rObj, 0, rView, rViewWindow )
{
}
AccessibleProxyEditSource_Impl::~AccessibleProxyEditSource_Impl()
{
}
SvxTextForwarder* AccessibleProxyEditSource_Impl::GetTextForwarder()
{
return maEditSource.GetTextForwarder();
}
SvxViewForwarder* AccessibleProxyEditSource_Impl::GetViewForwarder()
{
return maEditSource.GetViewForwarder();
}
SvxEditViewForwarder* AccessibleProxyEditSource_Impl::GetEditViewForwarder( sal_Bool bCreate )
{
return maEditSource.GetEditViewForwarder( bCreate );
}
SvxEditSource* AccessibleProxyEditSource_Impl::Clone() const
{
return maEditSource.Clone();
}
void AccessibleProxyEditSource_Impl::UpdateData()
{
maEditSource.UpdateData();
}
SfxBroadcaster& AccessibleProxyEditSource_Impl::GetBroadcaster() const
{
return maEditSource.GetBroadcaster();
}
// -------------------------------------------------------------------------
// Implementing AccessibleEmptyEditSource
// -------------------------------------------------------------------------
AccessibleEmptyEditSource::AccessibleEmptyEditSource( SdrObject& rObj,
SdrView& rView,
const Window& rViewWindow ) :
mpEditSource( new AccessibleEmptyEditSource_Impl() ),
mrObj(rObj),
mrView(rView),
mrViewWindow(rViewWindow),
mbEditSourceEmpty( true )
{
if( mrObj.GetModel() )
StartListening( *mrObj.GetModel() );
}
AccessibleEmptyEditSource::~AccessibleEmptyEditSource()
{
if( !mbEditSourceEmpty )
{
// deregister as listener
if( mpEditSource.get() )
EndListening( mpEditSource->GetBroadcaster() );
}
else
{
if( mrObj.GetModel() )
EndListening( *mrObj.GetModel() );
}
}
SvxTextForwarder* AccessibleEmptyEditSource::GetTextForwarder()
{
if( !mpEditSource.get() )
return NULL;
return mpEditSource->GetTextForwarder();
}
SvxViewForwarder* AccessibleEmptyEditSource::GetViewForwarder()
{
if( !mpEditSource.get() )
return NULL;
return mpEditSource->GetViewForwarder();
}
void AccessibleEmptyEditSource::Switch2ProxyEditSource()
{
// deregister EmptyEditSource model listener
if( mrObj.GetModel() )
EndListening( *mrObj.GetModel() );
::std::auto_ptr< SvxEditSource > pProxySource( new AccessibleProxyEditSource_Impl(mrObj, mrView, mrViewWindow) );
::std::auto_ptr< SvxEditSource > tmp = mpEditSource;
mpEditSource = pProxySource;
pProxySource = tmp;
// register as listener
StartListening( mpEditSource->GetBroadcaster() );
// we've irrevocably a full EditSource now.
mbEditSourceEmpty = false;
}
SvxEditViewForwarder* AccessibleEmptyEditSource::GetEditViewForwarder( sal_Bool bCreate )
{
if( !mpEditSource.get() )
return NULL;
// switch edit source, if not yet done
if( mbEditSourceEmpty && bCreate )
Switch2ProxyEditSource();
return mpEditSource->GetEditViewForwarder( bCreate );
}
SvxEditSource* AccessibleEmptyEditSource::Clone() const
{
if( !mpEditSource.get() )
return NULL;
return mpEditSource->Clone();
}
void AccessibleEmptyEditSource::UpdateData()
{
if( mpEditSource.get() )
mpEditSource->UpdateData();
}
SfxBroadcaster& AccessibleEmptyEditSource::GetBroadcaster() const
{
return *(const_cast<AccessibleEmptyEditSource*>(this));
}
void AccessibleEmptyEditSource::Notify( SfxBroadcaster& /*rBC*/, const SfxHint& rHint )
{
const SdrHint* pSdrHint = PTR_CAST( SdrHint, &rHint );
if( pSdrHint && pSdrHint->GetKind() == HINT_BEGEDIT &&
&mrObj == pSdrHint->GetObject() && mpEditSource.get() )
{
// switch edit source, if not yet done. This is necessary
// to become a full-fledged EditSource the first time a
// user start entering text in a previously empty object.
if( mbEditSourceEmpty )
Switch2ProxyEditSource();
}
else if (pSdrHint && pSdrHint->GetObject()!=NULL)
{
// When the SdrObject just got a para outliner object then
// switch the edit source.
if (pSdrHint->GetObject()->GetOutlinerParaObject() != NULL)
Switch2ProxyEditSource();
}
// forward messages
Broadcast( rHint );
}
} // end of namespace accessibility
//------------------------------------------------------------------------
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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