| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
| sal_uInt16 GetParagraphCount() const { return 1; } |
| sal_uInt16 GetTextLen( sal_uInt16 /*nParagraph*/ ) const { return 0; } |
| String GetText( const ESelection& /*rSel*/ ) const { return String(); } |
| SfxItemSet GetAttribs( const ESelection& /*rSel*/, sal_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( sal_uInt16 /*nPara*/ ) const { return GetAttribs(ESelection()); } |
| void SetParaAttribs( sal_uInt16 /*nPara*/, const SfxItemSet& /*rSet*/ ) {} |
| void RemoveAttribs( const ESelection& /*rSelection*/, sal_Bool /*bRemoveParaAttribs*/, sal_uInt16 /*nWhich*/ ){} |
| void GetPortions( sal_uInt16 /*nPara*/, SvUShorts& /*rList*/ ) const {} |
| |
| sal_uInt16 GetItemState( const ESelection& /*rSel*/, sal_uInt16 /*nWhich*/ ) const { return 0; } |
| sal_uInt16 GetItemState( sal_uInt16 /*nPara*/, sal_uInt16 /*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( sal_uInt16 /*nPara*/, const String & /*rText*/, const SfxItemSet & /*rSet*/ ) { return 0; } |
| |
| //XTextCopy |
| void CopyText(const SvxTextForwarder& ){} |
| |
| XubString CalcFieldValue( const SvxFieldItem& /*rField*/, sal_uInt16 /*nPara*/, sal_uInt16 /*nPos*/, Color*& /*rpTxtColor*/, Color*& /*rpFldColor*/ ) |
| { |
| return XubString(); |
| } |
| void FieldClicked( const SvxFieldItem&, sal_uInt16, xub_StrLen ) {;} |
| |
| sal_Bool IsValid() const { return sal_True; } |
| |
| void SetNotifyHdl( const Link& ) {} |
| LanguageType GetLanguage( sal_uInt16, sal_uInt16 ) const { return LANGUAGE_DONTKNOW; } |
| sal_uInt16 GetFieldCount( sal_uInt16 ) const { return 0; } |
| EFieldInfo GetFieldInfo( sal_uInt16, sal_uInt16 ) const { return EFieldInfo(); } |
| EBulletInfo GetBulletInfo( sal_uInt16 ) const { return EBulletInfo(); } |
| Rectangle GetCharBounds( sal_uInt16, sal_uInt16 ) const { return Rectangle(); } |
| Rectangle GetParaBounds( sal_uInt16 ) const { return Rectangle(); } |
| MapMode GetMapMode() const { return MapMode(); } |
| OutputDevice* GetRefDevice() const { return NULL; } |
| sal_Bool GetIndexAtPoint( const Point&, sal_uInt16&, sal_uInt16& ) const { return sal_False; } |
| sal_Bool GetWordIndices( sal_uInt16, sal_uInt16, sal_uInt16&, sal_uInt16& ) const { return sal_False; } |
| sal_Bool GetAttributeRun( sal_uInt16&, sal_uInt16&, sal_uInt16, sal_uInt16, sal_Bool) const { return sal_False; } |
| sal_uInt16 GetLineCount( sal_uInt16 nPara ) const { return nPara == 0 ? 1 : 0; } |
| sal_uInt16 GetLineLen( sal_uInt16, sal_uInt16 ) const { return 0; } |
| void GetLineBoundaries( /*out*/sal_uInt16 & rStart, /*out*/sal_uInt16 & rEnd, sal_uInt16 /*nParagraph*/, sal_uInt16 /*nLine*/ ) const { rStart = rEnd = 0; } |
| sal_uInt16 GetLineNumberAtIndex( sal_uInt16 /*nPara*/, sal_uInt16 /*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( sal_Bool ) { return sal_True; } |
| sal_Int16 GetDepth( sal_uInt16 ) const { return -1; } |
| sal_Bool SetDepth( sal_uInt16, 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 |
| |
| //------------------------------------------------------------------------ |
