libreoffice/starmath/source/accessibility.hxx

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#ifdef _MSC_VER
#pragma hdrstop
#endif

#ifndef _ACCESSIBILITY_HXX_
#define _ACCESSIBILITY_HXX_

#include <com/sun/star/accessibility/XAccessible.hpp>
#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
#include <com/sun/star/accessibility/XAccessibleContext.hpp>
#include <com/sun/star/accessibility/XAccessibleText.hpp>
#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/uno/Reference.h>
#include <osl/mutex.hxx>
#include <cppuhelper/interfacecontainer.h>
#include <cppuhelper/implbase5.hxx>
#include <cppuhelper/implbase6.hxx>
#include <svl/brdcst.hxx>

#include <editeng/editeng.hxx>
#include <editeng/unoedsrc.hxx> // SvxEditSource, SvxTextForwarder, SvxViewForwarder, SvxEditViewForwarder
#include <svx/AccessibleTextHelper.hxx>
#include <edit.hxx>

class Window;
class SmGraphicWindow;
class SmEditWindow;
class SmDocShell;

namespace com { namespace sun { namespace star { namespace accessibility {
struct AccessibleEventObject;
}}}}

//////////////////////////////////////////////////////////////////////
//
// classes and helper-classes used for accessibility in the graphic-window
//

typedef
cppu::WeakImplHelper6
    <
        com::sun::star::lang::XServiceInfo,
        com::sun::star::accessibility::XAccessible,
        com::sun::star::accessibility::XAccessibleComponent,
        com::sun::star::accessibility::XAccessibleContext,
        com::sun::star::accessibility::XAccessibleText,
        com::sun::star::accessibility::XAccessibleEventBroadcaster
    >
SmGraphicAccessibleBaseClass;

class SmGraphicAccessible :
    public SmGraphicAccessibleBaseClass
{
    osl::Mutex                          aListenerMutex;
    String                              aAccName;
    /// client id in the AccessibleEventNotifier queue
    sal_uInt32                          nClientId;

    SmGraphicWindow     *pWin;

    // disallow copy-ctor and assignment-operator for now
    SmGraphicAccessible( const SmGraphicAccessible & );
    SmGraphicAccessible & operator = ( const SmGraphicAccessible & );

protected:
    SmDocShell *    GetDoc_Impl();
    String          GetAccessibleText_Impl();

public:
    SmGraphicAccessible( SmGraphicWindow *pGraphicWin );
    virtual ~SmGraphicAccessible();

    SmGraphicWindow *   GetWin()    { return pWin; }
    void                ClearWin();     // to be called when view is destroyed
    void                LaunchEvent(
                            const sal_Int16 nAccesibleEventId,
                            const ::com::sun::star::uno::Any &rOldVal,
                            const ::com::sun::star::uno::Any &rNewVal);

    // XAccessible
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) throw (::com::sun::star::uno::RuntimeException);

    // XAccessibleComponent
    virtual sal_Bool SAL_CALL containsPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Point SAL_CALL getLocation(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Size SAL_CALL getSize(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL grabFocus(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getForeground(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getBackground(  ) throw (::com::sun::star::uno::RuntimeException);

    // XAccessibleContext
    virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getAccessibleIndexInParent(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int16 SAL_CALL getAccessibleRole(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getAccessibleDescription(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getAccessibleName(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleStateSet > SAL_CALL getAccessibleStateSet(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::lang::Locale SAL_CALL getLocale(  ) throw (::com::sun::star::accessibility::IllegalAccessibleComponentStateException, ::com::sun::star::uno::RuntimeException);

    // XAccessibleEventBroadcaster
    virtual void SAL_CALL addEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener >& xListener ) throw (::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL removeEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener >& xListener ) throw (::com::sun::star::uno::RuntimeException);

    // XAccessibleText
    virtual sal_Int32 SAL_CALL getCaretPosition(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Bool SAL_CALL setCaretPosition ( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const ::com::sun::star::uno::Sequence< ::rtl::OUString >& aRequestedAttributes ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getCharacterCount(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getIndexAtPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getSelectedText(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getSelectionStart(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getSelectionEnd(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getText(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException);
    virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);

    // XServiceInfo
    virtual ::rtl::OUString SAL_CALL getImplementationName(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames(  ) throw (::com::sun::star::uno::RuntimeException);
};

//////////////////////////////////////////////////////////////////////
//
// classes and helper-classes used for accessibility in the command-window
//

class SmEditAccessible;
class SmEditSource;
class EditEngine;
class EditView;
class SvxFieldItem;
struct ESelection;


class SmViewForwarder :
    public SvxViewForwarder
{
    SmEditAccessible &          rEditAcc;

    // disallow copy-ctor and assignment-operator for now
    SmViewForwarder( const SmViewForwarder & );
    SmViewForwarder & operator = ( const SmViewForwarder & );

public:
                        SmViewForwarder( SmEditAccessible &rAcc );
    virtual             ~SmViewForwarder();

    virtual BOOL        IsValid() const;
    virtual Rectangle   GetVisArea() const;
    virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const;
    virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const;
};


class SmTextForwarder :     /* analog to SvxEditEngineForwarder */
    public SvxTextForwarder
{
    SmEditAccessible &  rEditAcc;
    SmEditSource &      rEditSource;

    DECL_LINK( NotifyHdl, EENotify * );

    // disallow copy-ctor and assignment-operator for now
    SmTextForwarder( const SmTextForwarder & );
    SmTextForwarder & operator = ( const SmTextForwarder & );

public:
    SmTextForwarder( SmEditAccessible& rAcc, SmEditSource & rSource );
    virtual ~SmTextForwarder();

    virtual USHORT      GetParagraphCount() const;
    virtual USHORT      GetTextLen( USHORT nParagraph ) const;
    virtual String      GetText( const ESelection& rSel ) const;
    virtual SfxItemSet  GetAttribs( const ESelection& rSel, BOOL bOnlyHardAttrib = EditEngineAttribs_All ) const;
    virtual SfxItemSet  GetParaAttribs( USHORT nPara ) const;
    virtual void        SetParaAttribs( USHORT nPara, const SfxItemSet& rSet );
    virtual void        RemoveAttribs( const ESelection& rSelection, sal_Bool bRemoveParaAttribs, sal_uInt16 nWhich );
    virtual void        GetPortions( USHORT nPara, SvUShorts& rList ) const;

    virtual USHORT      GetItemState( const ESelection& rSel, USHORT nWhich ) const;
    virtual USHORT      GetItemState( USHORT nPara, USHORT nWhich ) const;

    virtual void        QuickInsertText( const String& rText, const ESelection& rSel );
    virtual void        QuickInsertField( const SvxFieldItem& rFld, const ESelection& rSel );
    virtual void        QuickSetAttribs( const SfxItemSet& rSet, const ESelection& rSel );
    virtual void        QuickInsertLineBreak( const ESelection& rSel );

    virtual SfxItemPool* GetPool() const;

    virtual XubString    CalcFieldValue( const SvxFieldItem& rField, USHORT nPara, USHORT nPos, Color*& rpTxtColor, Color*& rpFldColor );
    virtual void        FieldClicked(const SvxFieldItem&, USHORT, USHORT);
    virtual BOOL         IsValid() const;

    virtual LanguageType    GetLanguage( USHORT, USHORT ) const;
    virtual USHORT          GetFieldCount( USHORT nPara ) const;
    virtual EFieldInfo      GetFieldInfo( USHORT nPara, USHORT nField ) const;
    virtual EBulletInfo     GetBulletInfo( USHORT nPara ) const;
    virtual Rectangle       GetCharBounds( USHORT nPara, USHORT nIndex ) const;
    virtual Rectangle       GetParaBounds( USHORT nPara ) const;
    virtual MapMode         GetMapMode() const;
    virtual OutputDevice*   GetRefDevice() const;
    virtual sal_Bool        GetIndexAtPoint( const Point&, USHORT& nPara, USHORT& nIndex ) const;
    virtual sal_Bool        GetWordIndices( USHORT nPara, USHORT nIndex, USHORT& nStart, USHORT& nEnd ) const;
    virtual sal_Bool        GetAttributeRun( USHORT& nStartIndex, USHORT& nEndIndex, USHORT nPara, USHORT nIndex ) const;
    virtual USHORT          GetLineCount( USHORT nPara ) const;
    virtual USHORT          GetLineLen( USHORT nPara, USHORT nLine ) const;
    virtual void            GetLineBoundaries( /*out*/USHORT &rStart, /*out*/USHORT &rEnd, USHORT nParagraph, USHORT nLine ) const;
    virtual USHORT          GetLineNumberAtIndex( USHORT nPara, USHORT nLine ) const;
    virtual sal_Bool        Delete( const ESelection& );
    virtual sal_Bool        InsertText( const String&, const ESelection& );
    virtual sal_Bool        QuickFormatDoc( BOOL bFull=FALSE );

    virtual sal_Int16       GetDepth( USHORT nPara ) const;
    virtual sal_Bool        SetDepth( USHORT nPara, sal_Int16 nNewDepth );

    virtual const SfxItemSet*   GetEmptyItemSetPtr();
    // implementation functions for XParagraphAppend and XTextPortionAppend
    virtual void        AppendParagraph();
    virtual xub_StrLen  AppendTextPortion( USHORT nPara, const String &rText, const SfxItemSet &rSet );

    virtual void        CopyText(const SvxTextForwarder& rSource);
};


class SmEditViewForwarder :     /* analog to SvxEditEngineViewForwarder */
    public SvxEditViewForwarder
{
    SmEditAccessible&       rEditAcc;

    // disallow copy-ctor and assignment-operator for now
    SmEditViewForwarder( const SmEditViewForwarder & );
    SmEditViewForwarder & operator = ( const SmEditViewForwarder & );

public:
                        SmEditViewForwarder( SmEditAccessible& rAcc );
    virtual             ~SmEditViewForwarder();

    virtual BOOL        IsValid() const;

    virtual Rectangle   GetVisArea() const;
    virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const;
    virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const;

    virtual sal_Bool    GetSelection( ESelection& rSelection ) const;
    virtual sal_Bool    SetSelection( const ESelection& rSelection );
    virtual sal_Bool    Copy();
    virtual sal_Bool    Cut();
    virtual sal_Bool    Paste();
};


class SmEditSource :
    public SvxEditSource
{
    SfxBroadcaster          aBroadCaster;
    SmViewForwarder         aViewFwd;
    SmTextForwarder         aTextFwd;
    SmEditViewForwarder     aEditViewFwd;

    SmEditAccessible&       rEditAcc;

    // disallow copy-ctor and assignment-operator for now
    SmEditSource( const SmEditSource &rSrc );
    SmEditSource & operator = ( const SmEditSource & );

public:
            SmEditSource( SmEditWindow *pWin, SmEditAccessible &rAcc );
    virtual ~SmEditSource();

    virtual SvxEditSource*      Clone() const;
    virtual SvxTextForwarder*   GetTextForwarder();
     virtual SvxViewForwarder*  GetViewForwarder();
     virtual SvxEditViewForwarder*  GetEditViewForwarder( sal_Bool bCreate = sal_False );
    virtual void                UpdateData();
    virtual SfxBroadcaster&     GetBroadcaster() const;
};




typedef
cppu::WeakImplHelper5
    <
        com::sun::star::lang::XServiceInfo,
        com::sun::star::accessibility::XAccessible,
        com::sun::star::accessibility::XAccessibleComponent,
        com::sun::star::accessibility::XAccessibleContext,
        com::sun::star::accessibility::XAccessibleEventBroadcaster
    >
SmEditAccessibleBaseClass;

class SmEditAccessible :
    public SmEditAccessibleBaseClass
{
    osl::Mutex                              aListenerMutex;
    String                                  aAccName;
    ::accessibility::AccessibleTextHelper    *pTextHelper;
    SmEditWindow                           *pWin;

    // disallow copy-ctor and assignment-operator for now
    SmEditAccessible( const SmEditAccessible & );
    SmEditAccessible & operator = ( const SmEditAccessible & );

protected:
#ifdef TL_NOT_YET_USED
    SmDocShell *    GetDoc_Impl();
#endif //TL_NOT_YET_USED

public:
    SmEditAccessible( SmEditWindow *pEditWin );
    virtual ~SmEditAccessible();

    ::accessibility::AccessibleTextHelper *   GetTextHelper() { return pTextHelper; }

    void                Init();
    SmEditWindow *      GetWin()    { return pWin; }
    void                ClearWin();     // to be called when view is destroyed

    //! access EditEngine and EditView via the functions in the respective window
    //! pointers may be 0 (e.g. during reload)
    EditEngine * GetEditEngine()    { return pWin ? pWin->GetEditEngine() : 0; }
    EditView   * GetEditView()      { return pWin ? pWin->GetEditView() : 0; }

    // XAccessible
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) throw (::com::sun::star::uno::RuntimeException);

    // XAccessibleComponent
    virtual sal_Bool SAL_CALL containsPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Point SAL_CALL getLocation(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::awt::Size SAL_CALL getSize(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL grabFocus(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getForeground(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getBackground(  ) throw (::com::sun::star::uno::RuntimeException);

    // XAccessibleContext
    virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int32 SAL_CALL getAccessibleIndexInParent(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Int16 SAL_CALL getAccessibleRole(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getAccessibleDescription(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::rtl::OUString SAL_CALL getAccessibleName(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleStateSet > SAL_CALL getAccessibleStateSet(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::lang::Locale SAL_CALL getLocale(  ) throw (::com::sun::star::accessibility::IllegalAccessibleComponentStateException, ::com::sun::star::uno::RuntimeException);

    // XAccessibleEventBroadcaster
    virtual void SAL_CALL addEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener >& xListener ) throw (::com::sun::star::uno::RuntimeException);
    virtual void SAL_CALL removeEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener >& xListener ) throw (::com::sun::star::uno::RuntimeException);

    // XServiceInfo
    virtual ::rtl::OUString SAL_CALL getImplementationName(  ) throw (::com::sun::star::uno::RuntimeException);
    virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw (::com::sun::star::uno::RuntimeException);
    virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames(  ) throw (::com::sun::star::uno::RuntimeException);
};

//////////////////////////////////////////////////////////////////////

#endif