starmath/source/accessibility.hxx

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  19
  20 #ifndef INCLUDED_STARMATH_SOURCE_ACCESSIBILITY_HXX
  21 #define INCLUDED_STARMATH_SOURCE_ACCESSIBILITY_HXX
  22
  23 #include <com/sun/star/accessibility/XAccessible.hpp>
  24 #include <com/sun/star/accessibility/XAccessibleComponent.hpp>
  25 #include <com/sun/star/accessibility/XAccessibleContext.hpp>
  26 #include <com/sun/star/accessibility/XAccessibleText.hpp>
  27 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
  28 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
  29 #include <com/sun/star/lang/XServiceInfo.hpp>
  30 #include <com/sun/star/uno/Reference.h>
  31 #include <osl/mutex.hxx>
  32 #include <cppuhelper/interfacecontainer.h>
  33 #include <cppuhelper/implbase.hxx>
  34 #include <svl/SfxBroadcaster.hxx>
  35
  36 #include <editeng/editeng.hxx>
  37 #include <editeng/unoedsrc.hxx>
  38 #include <svx/AccessibleTextHelper.hxx>
  39 #include <edit.hxx>
  40 #include <memory>
  41
  42 class SmGraphicWindow;
  43 class SmEditWindow;
  44 class SmDocShell;
  45
  46 namespace com { namespace sun { namespace star { namespace accessibility {
  47 struct AccessibleEventObject;
  48 }}}}
  49
  50
  51 // classes and helper-classes used for accessibility in the graphic-window
  52
  53
  54 typedef
  55 cppu::WeakImplHelper
  56     <
  57         css::lang::XServiceInfo,
  58         css::accessibility::XAccessible,
  59         css::accessibility::XAccessibleComponent,
  60         css::accessibility::XAccessibleContext,
  61         css::accessibility::XAccessibleText,
  62         css::accessibility::XAccessibleEventBroadcaster
  63     >
  64 SmGraphicAccessibleBaseClass;
  65
  66 class SmGraphicAccessible :
  67     public SmGraphicAccessibleBaseClass
  68 {
  69     OUString                            aAccName;
  70     /// client id in the AccessibleEventNotifier queue
  71     sal_uInt32                          nClientId;
  72
  73     VclPtr<SmGraphicWindow>             pWin;
  74
  75     SmGraphicAccessible( const SmGraphicAccessible & ) = delete;
  76     SmGraphicAccessible & operator = ( const SmGraphicAccessible & ) = delete;
  77
  78 protected:
  79     SmDocShell *    GetDoc_Impl();
  80     OUString        GetAccessibleText_Impl();
  81
  82 public:
  83     explicit SmGraphicAccessible( SmGraphicWindow *pGraphicWin );
  84     virtual ~SmGraphicAccessible() override;
  85
  86     void                ClearWin();     // to be called when view is destroyed
  87     void                LaunchEvent(
  88                             const sal_Int16 nAccesibleEventId,
  89                             const css::uno::Any &rOldVal,
  90                             const css::uno::Any &rNewVal);
  91
  92     // XAccessible
  93     virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) throw (css::uno::RuntimeException, std::exception) override;
  94
  95     // XAccessibleComponent
  96     virtual sal_Bool SAL_CALL containsPoint( const css::awt::Point& aPoint ) throw (css::uno::RuntimeException, std::exception) override;
  97     virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) throw (css::uno::RuntimeException, std::exception) override;
  98     virtual css::awt::Rectangle SAL_CALL getBounds(  ) throw (css::uno::RuntimeException, std::exception) override;
  99     virtual css::awt::Point SAL_CALL getLocation(  ) throw (css::uno::RuntimeException, std::exception) override;
 100     virtual css::awt::Point SAL_CALL getLocationOnScreen(  ) throw (css::uno::RuntimeException, std::exception) override;
 101     virtual css::awt::Size SAL_CALL getSize(  ) throw (css::uno::RuntimeException, std::exception) override;
 102     virtual void SAL_CALL grabFocus(  ) throw (css::uno::RuntimeException, std::exception) override;
 103     virtual sal_Int32 SAL_CALL getForeground(  ) throw (css::uno::RuntimeException, std::exception) override;
 104     virtual sal_Int32 SAL_CALL getBackground(  ) throw (css::uno::RuntimeException, std::exception) override;
 105
 106     // XAccessibleContext
 107     virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) throw (css::uno::RuntimeException, std::exception) override;
 108     virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 109     virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) throw (css::uno::RuntimeException, std::exception) override;
 110     virtual sal_Int32 SAL_CALL getAccessibleIndexInParent(  ) throw (css::uno::RuntimeException, std::exception) override;
 111     virtual sal_Int16 SAL_CALL getAccessibleRole(  ) throw (css::uno::RuntimeException, std::exception) override;
 112     virtual OUString SAL_CALL getAccessibleDescription(  ) throw (css::uno::RuntimeException, std::exception) override;
 113     virtual OUString SAL_CALL getAccessibleName(  ) throw (css::uno::RuntimeException, std::exception) override;
 114     virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) throw (css::uno::RuntimeException, std::exception) override;
 115     virtual css::uno::Reference< css::accessibility::XAccessibleStateSet > SAL_CALL getAccessibleStateSet(  ) throw (css::uno::RuntimeException, std::exception) override;
 116     virtual css::lang::Locale SAL_CALL getLocale(  ) throw (css::accessibility::IllegalAccessibleComponentStateException, css::uno::RuntimeException, std::exception) override;
 117
 118     // XAccessibleEventBroadcaster
 119     virtual void SAL_CALL addAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) throw (css::uno::RuntimeException, std::exception) override;
 120     virtual void SAL_CALL removeAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) throw (css::uno::RuntimeException, std::exception) override;
 121
 122     // XAccessibleText
 123     virtual sal_Int32 SAL_CALL getCaretPosition(  ) throw (css::uno::RuntimeException, std::exception) override;
 124     virtual sal_Bool SAL_CALL setCaretPosition ( sal_Int32 nIndex ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 125     virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 126     virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& aRequestedAttributes ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 127     virtual css::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 128     virtual sal_Int32 SAL_CALL getCharacterCount(  ) throw (css::uno::RuntimeException, std::exception) override;
 129     virtual sal_Int32 SAL_CALL getIndexAtPoint( const css::awt::Point& aPoint ) throw (css::uno::RuntimeException, std::exception) override;
 130     virtual OUString SAL_CALL getSelectedText(  ) throw (css::uno::RuntimeException, std::exception) override;
 131     virtual sal_Int32 SAL_CALL getSelectionStart(  ) throw (css::uno::RuntimeException, std::exception) override;
 132     virtual sal_Int32 SAL_CALL getSelectionEnd(  ) throw (css::uno::RuntimeException, std::exception) override;
 133     virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 134     virtual OUString SAL_CALL getText(  ) throw (css::uno::RuntimeException, std::exception) override;
 135     virtual OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 136     virtual css::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (css::lang::IndexOutOfBoundsException, css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
 137     virtual css::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (css::lang::IndexOutOfBoundsException, css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
 138     virtual css::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) throw (css::lang::IndexOutOfBoundsException, css::lang::IllegalArgumentException, css::uno::RuntimeException, std::exception) override;
 139     virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 140
 141     // XServiceInfo
 142     virtual OUString SAL_CALL getImplementationName(  ) throw (css::uno::RuntimeException, std::exception) override;
 143     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (css::uno::RuntimeException, std::exception) override;
 144     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) throw (css::uno::RuntimeException, std::exception) override;
 145 };
 146
 147
 148 // classes and helper-classes used for accessibility in the command-window
 149
 150
 151 class SmEditAccessible;
 152 class SmEditSource;
 153 class EditEngine;
 154 class EditView;
 155 class SvxFieldItem;
 156 struct ESelection;
 157
 158
 159 class SmViewForwarder :
 160     public SvxViewForwarder
 161 {
 162     SmEditAccessible &          rEditAcc;
 163
 164     SmViewForwarder( const SmViewForwarder & ) = delete;
 165     SmViewForwarder & operator = ( const SmViewForwarder & ) = delete;
 166
 167 public:
 168     explicit SmViewForwarder( SmEditAccessible &rAcc );
 169     virtual             ~SmViewForwarder() override;
 170
 171     virtual bool        IsValid() const override;
 172     virtual Rectangle   GetVisArea() const override;
 173     virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
 174     virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;
 175 };
 176
 177
 178 class SmTextForwarder :     /* analog to SvxEditEngineForwarder */
 179     public SvxTextForwarder
 180 {
 181     SmEditAccessible &  rEditAcc;
 182     SmEditSource &      rEditSource;
 183
 184     DECL_LINK( NotifyHdl, EENotify&, void );
 185
 186     SmTextForwarder( const SmTextForwarder & ) = delete;
 187     SmTextForwarder & operator = ( const SmTextForwarder & ) = delete;
 188
 189 public:
 190     SmTextForwarder( SmEditAccessible& rAcc, SmEditSource & rSource );
 191     virtual ~SmTextForwarder() override;
 192
 193     virtual sal_Int32   GetParagraphCount() const override;
 194     virtual sal_Int32   GetTextLen( sal_Int32 nParagraph ) const override;
 195     virtual OUString    GetText( const ESelection& rSel ) const override;
 196     virtual SfxItemSet  GetAttribs( const ESelection& rSel, EditEngineAttribs nOnlyHardAttrib = EditEngineAttribs_All ) const override;
 197     virtual SfxItemSet  GetParaAttribs( sal_Int32 nPara ) const override;
 198     virtual void        SetParaAttribs( sal_Int32 nPara, const SfxItemSet& rSet ) override;
 199     virtual void        RemoveAttribs( const ESelection& rSelection ) override;
 200     virtual void        GetPortions( sal_Int32 nPara, std::vector<sal_Int32>& rList ) const override;
 201
 202     virtual SfxItemState  GetItemState( const ESelection& rSel, sal_uInt16 nWhich ) const override;
 203     virtual SfxItemState  GetItemState( sal_Int32 nPara, sal_uInt16 nWhich ) const override;
 204
 205     virtual void        QuickInsertText( const OUString& rText, const ESelection& rSel ) override;
 206     virtual void        QuickInsertField( const SvxFieldItem& rFld, const ESelection& rSel ) override;
 207     virtual void        QuickSetAttribs( const SfxItemSet& rSet, const ESelection& rSel ) override;
 208     virtual void        QuickInsertLineBreak( const ESelection& rSel ) override;
 209
 210     virtual SfxItemPool* GetPool() const override;
 211
 212     virtual OUString        CalcFieldValue( const SvxFieldItem& rField, sal_Int32 nPara, sal_Int32 nPos, Color*& rpTxtColor, Color*& rpFldColor ) override;
 213     virtual void            FieldClicked(const SvxFieldItem&, sal_Int32, sal_Int32) override;
 214     virtual bool            IsValid() const override;
 215
 216     virtual LanguageType    GetLanguage( sal_Int32, sal_Int32 ) const override;
 217     virtual sal_Int32       GetFieldCount( sal_Int32 nPara ) const override;
 218     virtual EFieldInfo      GetFieldInfo( sal_Int32 nPara, sal_uInt16 nField ) const override;
 219     virtual EBulletInfo     GetBulletInfo( sal_Int32 nPara ) const override;
 220     virtual Rectangle       GetCharBounds( sal_Int32 nPara, sal_Int32 nIndex ) const override;
 221     virtual Rectangle       GetParaBounds( sal_Int32 nPara ) const override;
 222     virtual MapMode         GetMapMode() const override;
 223     virtual OutputDevice*   GetRefDevice() const override;
 224     virtual bool            GetIndexAtPoint( const Point&, sal_Int32& nPara, sal_Int32& nIndex ) const override;
 225     virtual bool            GetWordIndices( sal_Int32 nPara, sal_Int32 nIndex, sal_Int32& nStart, sal_Int32& nEnd ) const override;
 226     virtual bool            GetAttributeRun( sal_Int32& nStartIndex, sal_Int32& nEndIndex, sal_Int32 nPara, sal_Int32 nIndex, bool bInCell = false ) const override;
 227     virtual sal_Int32       GetLineCount( sal_Int32 nPara ) const override;
 228     virtual sal_Int32       GetLineLen( sal_Int32 nPara, sal_Int32 nLine ) const override;
 229     virtual void            GetLineBoundaries( /*out*/sal_Int32 &rStart, /*out*/sal_Int32 &rEnd, sal_Int32 nParagraph, sal_Int32 nLine ) const override;
 230     virtual sal_Int32       GetLineNumberAtIndex( sal_Int32 nPara, sal_Int32 nLine ) const override;
 231     virtual bool            Delete( const ESelection& ) override;
 232     virtual bool            InsertText( const OUString&, const ESelection& ) override;
 233     virtual bool            QuickFormatDoc( bool bFull = false ) override;
 234
 235     virtual sal_Int16       GetDepth( sal_Int32 nPara ) const override;
 236     virtual bool            SetDepth( sal_Int32 nPara, sal_Int16 nNewDepth ) override;
 237
 238     virtual const SfxItemSet*   GetEmptyItemSetPtr() override;
 239     // implementation functions for XParagraphAppend and XTextPortionAppend
 240     virtual void        AppendParagraph() override;
 241     virtual sal_Int32   AppendTextPortion( sal_Int32 nPara, const OUString &rText, const SfxItemSet &rSet ) override;
 242
 243     virtual void        CopyText(const SvxTextForwarder& rSource) override;
 244 };
 245
 246
 247 class SmEditViewForwarder :     /* analog to SvxEditEngineViewForwarder */
 248     public SvxEditViewForwarder
 249 {
 250     SmEditAccessible&       rEditAcc;
 251
 252     SmEditViewForwarder( const SmEditViewForwarder & ) = delete;
 253     SmEditViewForwarder & operator = ( const SmEditViewForwarder & ) = delete;
 254
 255 public:
 256     explicit SmEditViewForwarder( SmEditAccessible& rAcc );
 257     virtual             ~SmEditViewForwarder() override;
 258
 259     virtual bool        IsValid() const override;
 260
 261     virtual Rectangle   GetVisArea() const override;
 262     virtual Point       LogicToPixel( const Point& rPoint, const MapMode& rMapMode ) const override;
 263     virtual Point       PixelToLogic( const Point& rPoint, const MapMode& rMapMode ) const override;
 264
 265     virtual bool        GetSelection( ESelection& rSelection ) const override;
 266     virtual bool        SetSelection( const ESelection& rSelection ) override;
 267     virtual bool        Copy() override;
 268     virtual bool        Cut() override;
 269     virtual bool        Paste() override;
 270 };
 271
 272
 273 class SmEditSource :
 274     public SvxEditSource
 275 {
 276     SfxBroadcaster          aBroadCaster;
 277     SmViewForwarder         aViewFwd;
 278     SmTextForwarder         aTextFwd;
 279     SmEditViewForwarder     aEditViewFwd;
 280
 281     SmEditAccessible&       rEditAcc;
 282
 283     SmEditSource( const SmEditSource &rSrc );
 284     SmEditSource & operator = ( const SmEditSource & ) = delete;
 285
 286 public:
 287             SmEditSource( SmEditWindow *pWin, SmEditAccessible &rAcc );
 288     virtual ~SmEditSource() override;
 289
 290     virtual SvxEditSource*      Clone() const override;
 291     virtual SvxTextForwarder*   GetTextForwarder() override;
 292     virtual SvxViewForwarder*  GetViewForwarder() override;
 293     virtual SvxEditViewForwarder*  GetEditViewForwarder( bool bCreate = false ) override;
 294     virtual void                UpdateData() override;
 295     virtual SfxBroadcaster&     GetBroadcaster() const override;
 296 };
 297
 298
 299 typedef
 300 cppu::WeakImplHelper
 301     <
 302         css::lang::XServiceInfo,
 303         css::accessibility::XAccessible,
 304         css::accessibility::XAccessibleComponent,
 305         css::accessibility::XAccessibleContext,
 306         css::accessibility::XAccessibleEventBroadcaster
 307     >
 308 SmEditAccessibleBaseClass;
 309
 310 class SmEditAccessible :
 311     public SmEditAccessibleBaseClass
 312 {
 313     OUString                                aAccName;
 314     std::unique_ptr<::accessibility::AccessibleTextHelper> pTextHelper;
 315     VclPtr<SmEditWindow>                    pWin;
 316
 317     SmEditAccessible( const SmEditAccessible & ) = delete;
 318     SmEditAccessible & operator = ( const SmEditAccessible & ) = delete;
 319
 320 public:
 321     explicit SmEditAccessible( SmEditWindow *pEditWin );
 322     virtual ~SmEditAccessible() override;
 323
 324     ::accessibility::AccessibleTextHelper *   GetTextHelper();
 325
 326     void                Init();
 327     void                ClearWin();     // to be called when view is destroyed
 328
 329     //! access EditEngine and EditView via the functions in the respective window
 330     //! pointers may be 0 (e.g. during reload)
 331     EditEngine * GetEditEngine()    { return pWin ? pWin->GetEditEngine() : nullptr; }
 332     EditView   * GetEditView()      { return pWin ? pWin->GetEditView() : nullptr; }
 333
 334     // XAccessible
 335     virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) throw (css::uno::RuntimeException, std::exception) override;
 336
 337     // XAccessibleComponent
 338     virtual sal_Bool SAL_CALL containsPoint( const css::awt::Point& aPoint ) throw (css::uno::RuntimeException, std::exception) override;
 339     virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) throw (css::uno::RuntimeException, std::exception) override;
 340     virtual css::awt::Rectangle SAL_CALL getBounds(  ) throw (css::uno::RuntimeException, std::exception) override;
 341     virtual css::awt::Point SAL_CALL getLocation(  ) throw (css::uno::RuntimeException, std::exception) override;
 342     virtual css::awt::Point SAL_CALL getLocationOnScreen(  ) throw (css::uno::RuntimeException, std::exception) override;
 343     virtual css::awt::Size SAL_CALL getSize(  ) throw (css::uno::RuntimeException, std::exception) override;
 344     virtual void SAL_CALL grabFocus(  ) throw (css::uno::RuntimeException, std::exception) override;
 345     virtual sal_Int32 SAL_CALL getForeground(  ) throw (css::uno::RuntimeException, std::exception) override;
 346     virtual sal_Int32 SAL_CALL getBackground(  ) throw (css::uno::RuntimeException, std::exception) override;
 347
 348     // XAccessibleContext
 349     virtual sal_Int32 SAL_CALL getAccessibleChildCount(  ) throw (css::uno::RuntimeException, std::exception) override;
 350     virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int32 i ) throw (css::lang::IndexOutOfBoundsException, css::uno::RuntimeException, std::exception) override;
 351     virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent(  ) throw (css::uno::RuntimeException, std::exception) override;
 352     virtual sal_Int32 SAL_CALL getAccessibleIndexInParent(  ) throw (css::uno::RuntimeException, std::exception) override;
 353     virtual sal_Int16 SAL_CALL getAccessibleRole(  ) throw (css::uno::RuntimeException, std::exception) override;
 354     virtual OUString SAL_CALL getAccessibleDescription(  ) throw (css::uno::RuntimeException, std::exception) override;
 355     virtual OUString SAL_CALL getAccessibleName(  ) throw (css::uno::RuntimeException, std::exception) override;
 356     virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) throw (css::uno::RuntimeException, std::exception) override;
 357     virtual css::uno::Reference< css::accessibility::XAccessibleStateSet > SAL_CALL getAccessibleStateSet(  ) throw (css::uno::RuntimeException, std::exception) override;
 358     virtual css::lang::Locale SAL_CALL getLocale(  ) throw (css::accessibility::IllegalAccessibleComponentStateException, css::uno::RuntimeException, std::exception) override;
 359
 360     // XAccessibleEventBroadcaster
 361     virtual void SAL_CALL addAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) throw (css::uno::RuntimeException, std::exception) override;
 362     virtual void SAL_CALL removeAccessibleEventListener( const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) throw (css::uno::RuntimeException, std::exception) override;
 363
 364     // XServiceInfo
 365     virtual OUString SAL_CALL getImplementationName(  ) throw (css::uno::RuntimeException, std::exception) override;
 366     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (css::uno::RuntimeException, std::exception) override;
 367     virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) throw (css::uno::RuntimeException, std::exception) override;
 368 };
 369
 370
 371 #endif
 372
 373 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */