sw/source/core/access/accpara.hxx

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  30 #ifndef _ACCPARA_HXX
  31 #define _ACCPARA_HXX
  32 #ifndef _ACCCONTEXT_HXX
  33 #include "acccontext.hxx"
  34 #endif
  35 #include <com/sun/star/accessibility/XAccessibleEditableText.hpp>
  36 #include <com/sun/star/accessibility/XAccessibleSelection.hpp>
  37 #include <com/sun/star/accessibility/XAccessibleHypertext.hpp>
  38 // --> OD 2008-05-19 #i71360#
  39 #include <com/sun/star/accessibility/XAccessibleTextMarkup.hpp>
  40 // <--
  41 // --> OD 2008-05-29 #i89175#
  42 #include <com/sun/star/accessibility/XAccessibleMultiLineText.hpp>
  43 // <--
  44
  45 // --> OD 2006-07-11 #i63870#
  46 #include <com/sun/star/accessibility/XAccessibleTextAttributes.hpp>
  47 #include <hash_map>
  48 // <--
  49 #include "accselectionhelper.hxx"
  50
  51 class SwTxtFrm;
  52 class SwTxtNode;
  53 class SwPaM;
  54 class SwAccessiblePortionData;
  55 class SwAccessibleHyperTextData;
  56 class SwXTextPortion;
  57 namespace rtl { class OUString; }
  58 namespace com { namespace sun { namespace star {
  59     namespace i18n { struct Boundary; }
  60     namespace accessibility { class XAccessibleHyperlink; }
  61 } } }
  62
  63 typedef ::std::hash_map< ::rtl::OUString,
  64                          ::com::sun::star::beans::PropertyValue,
  65                          ::rtl::OUStringHash,
  66                          ::std::equal_to< ::rtl::OUString > > tAccParaPropValMap;
  67
  68 class SwAccessibleParagraph :
  69         public SwAccessibleContext,
  70         public ::com::sun::star::accessibility::XAccessibleEditableText,
  71         public com::sun::star::accessibility::XAccessibleSelection,
  72         public com::sun::star::accessibility::XAccessibleHypertext,
  73         // --> OD 2008-05-19 #i71360#
  74         public com::sun::star::accessibility::XAccessibleTextMarkup,
  75         // <--
  76         // --> OD 2008-05-29 #i89175#
  77         public com::sun::star::accessibility::XAccessibleMultiLineText,
  78         // <--
  79         // --> OD 2006-07-11 #i63870#
  80         public ::com::sun::star::accessibility::XAccessibleTextAttributes
  81         // <--
  82 {
  83     friend class SwAccessibleHyperlink;
  84
  85     ::rtl::OUString sDesc;      // protected by base classes mutex
  86
  87     /// data for this paragraph's text portions; this contains the
  88     /// mapping from the core 'model string' to the accessible text
  89     /// string.
  90     /// pPortionData may be NULL; it should only be accessed through the
  91     /// Get/Clear/Has/UpdatePortionData() methods
  92     SwAccessiblePortionData* pPortionData;
  93     SwAccessibleHyperTextData *pHyperTextData;
  94
  95     sal_Int32 nOldCaretPos;     // The 'old' caret pos. It's only valid as long
  96                             // as the cursor is inside this object (protected by
  97                             // mutex)
  98
  99     sal_Bool bIsHeading;        // protected by base classes mutex
 100
 101     // implementation for XAccessibleSelection
 102     SwAccessibleSelectionHelper aSelectionHelper;
 103
 104
 105     /// get the SwTxtNode (requires frame; check before)
 106     const SwTxtNode* GetTxtNode() const;
 107
 108     /// get the (accessible) text string (requires frame; check before)
 109     ::rtl::OUString GetString();
 110
 111     ::rtl::OUString GetDescription();
 112
 113     // get the current care position
 114     sal_Int32 GetCaretPos();
 115
 116     /// determine the current selection. Fill the values with
 117     /// -1 if there is no selection in the this paragraph
 118     sal_Bool GetSelection(sal_Int32& nStart, sal_Int32& nEnd);
 119
 120     // helper for GetSelection and getCaretPosition
 121     // --> OD 2005-12-20 #i27301#
 122     // - add parameter <_bForSelection>, which indicates, if the cursor is
 123     //   retrieved for selection or for caret position.
 124     SwPaM* GetCursor( const bool _bForSelection );
 125
 126     /// for cut/copy/paste: execute a particular slot at the view shell
 127     void ExecuteAtViewShell( UINT16 nSlot );
 128
 129     /// helper method for get/setAttributes
 130     /// (for the special case of (nEndIndex==-1) a single character will
 131     ///  be selected)
 132     SwXTextPortion* CreateUnoPortion( sal_Int32 nStart, sal_Int32 nEnd );
 133
 134
 135     // methods for checking the parameter range:
 136
 137     /// does nPos point to a char?
 138     sal_Bool IsValidChar(sal_Int32 nPos, sal_Int32 nLength);
 139
 140     /// does nPos point to a position? (may be behind the last character)
 141     sal_Bool IsValidPosition(sal_Int32 nPos, sal_Int32 nLength);
 142
 143     /// is nBegin...nEnd a valid range? (nEnd points past the last character)
 144     sal_Bool IsValidRange(sal_Int32 nBegin, sal_Int32 nEnd, sal_Int32 nLength);
 145
 146     /// Ensure ordered range (i.e. nBegin is smaller then nEnd)
 147     inline void OrderRange(sal_Int32& nBegin, sal_Int32& nEnd)
 148     {
 149         if( nBegin > nEnd )
 150         {
 151             sal_Int32 nTmp = nBegin; nBegin = nEnd; nEnd = nTmp;
 152         }
 153     }
 154
 155     // --> OD 2006-07-13 #i63870#
 156     void _getDefaultAttributesImpl(
 157             const ::com::sun::star::uno::Sequence< ::rtl::OUString >& aRequestedAttributes,
 158             tAccParaPropValMap& rDefAttrSeq,
 159             const bool bOnlyCharAttrs = false );
 160     void _getRunAttributesImpl(
 161             const sal_Int32 nIndex,
 162             const ::com::sun::star::uno::Sequence< ::rtl::OUString >& aRequestedAttributes,
 163             tAccParaPropValMap& rRunAttrSeq );
 164     // <--
 165
 166 public:
 167
 168     sal_Bool IsHeading() const;
 169
 170 protected:
 171
 172     // Set states for getAccessibleStateSet.
 173     // This drived class additinaly sets MULTILINE(1), MULTISELECTABLE(+),
 174     // FOCUSABLE(+) and FOCUSED(+)
 175     virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet );
 176
 177     virtual void _InvalidateContent( sal_Bool bVisibleDataFired );
 178
 179     virtual void _InvalidateCursorPos();
 180     virtual void _InvalidateFocus();
 181
 182     virtual ~SwAccessibleParagraph();
 183
 184     //=====  handling of data for the text portions ===========================
 185
 186     /// force update of new portion data
 187     void UpdatePortionData()
 188         throw( com::sun::star::uno::RuntimeException );
 189
 190     /// remove the current portion data
 191     void ClearPortionData();
 192
 193     /// get portion data; update if necesary
 194     SwAccessiblePortionData& GetPortionData()
 195         throw( com::sun::star::uno::RuntimeException )
 196     {
 197         if( pPortionData == NULL )
 198             UpdatePortionData();
 199         return *pPortionData;
 200     }
 201
 202     /// determine if portion data is currently available
 203     sal_Bool HasPortionData()   { return (pPortionData != NULL); }
 204
 205
 206     //=====  helpers for word boundaries  ====================================
 207
 208     sal_Bool GetCharBoundary( com::sun::star::i18n::Boundary& rBound,
 209                               const rtl::OUString& rText,
 210                               sal_Int32 nPos );
 211     sal_Bool GetWordBoundary( com::sun::star::i18n::Boundary& rBound,
 212                               const rtl::OUString& rText,
 213                               sal_Int32 nPos );
 214     sal_Bool GetSentenceBoundary( com::sun::star::i18n::Boundary& rBound,
 215                                   const rtl::OUString& rText,
 216                                   sal_Int32 nPos );
 217     sal_Bool GetLineBoundary( com::sun::star::i18n::Boundary& rBound,
 218                               const rtl::OUString& rText,
 219                               sal_Int32 nPos );
 220     sal_Bool GetParagraphBoundary( com::sun::star::i18n::Boundary& rBound,
 221                                    const rtl::OUString& rText,
 222                                    sal_Int32 nPos );
 223     sal_Bool GetAttributeBoundary( com::sun::star::i18n::Boundary& rBound,
 224                                    const rtl::OUString& rText,
 225                                    sal_Int32 nPos );
 226     sal_Bool GetGlyphBoundary( com::sun::star::i18n::Boundary& rBound,
 227                                const rtl::OUString& rText,
 228                                sal_Int32 nPos );
 229
 230     /// get boundaries of word/sentence/etc. for specified text type
 231     /// Does all argument checking, and then delegates to helper methods above.
 232     sal_Bool GetTextBoundary( com::sun::star::i18n::Boundary& rBound,
 233                               const rtl::OUString& rText,
 234                               sal_Int32 nPos,
 235                               sal_Int16 aTextType )
 236         throw (
 237             ::com::sun::star::lang::IndexOutOfBoundsException,
 238             ::com::sun::star::lang::IllegalArgumentException,
 239             ::com::sun::star::uno::RuntimeException);
 240
 241 public:
 242
 243     SwAccessibleParagraph( SwAccessibleMap* pInitMap,
 244                            const SwTxtFrm *pTxtFrm );
 245
 246     inline operator ::com::sun::star::accessibility::XAccessibleText *();
 247
 248     virtual sal_Bool HasCursor();       // required by map to remember that object
 249
 250     //=====  XAccessibleContext  ==============================================
 251
 252     /// Return this object's description.
 253     virtual ::rtl::OUString SAL_CALL
 254         getAccessibleDescription (void)
 255         throw (com::sun::star::uno::RuntimeException);
 256
 257     /** Return the parents locale or throw exception if this object has no
 258         parent yet/anymore.
 259     */
 260     virtual ::com::sun::star::lang::Locale SAL_CALL
 261         getLocale (void)
 262         throw (::com::sun::star::accessibility::IllegalAccessibleComponentStateException, ::com::sun::star::uno::RuntimeException);
 263
 264     /** paragraphs are in relation CONTENT_FLOWS_FROM and/or CONTENT_FLOWS_TO
 265
 266         OD 2005-12-02 #i27138#
 267
 268         @author OD
 269     */
 270     virtual ::com::sun::star::uno::Reference<
 271             ::com::sun::star::accessibility::XAccessibleRelationSet> SAL_CALL
 272         getAccessibleRelationSet (void)
 273         throw (::com::sun::star::uno::RuntimeException);
 274
 275     //=====  XAccessibleComponent  ============================================
 276
 277     virtual void SAL_CALL grabFocus()
 278         throw (::com::sun::star::uno::RuntimeException);
 279     // --> OD 2007-01-17 #i71385#
 280     virtual sal_Int32 SAL_CALL getForeground()
 281         throw (::com::sun::star::uno::RuntimeException);
 282     virtual sal_Int32 SAL_CALL getBackground()
 283         throw (::com::sun::star::uno::RuntimeException);
 284     // <--
 285
 286     //=====  XServiceInfo  ====================================================
 287
 288     /** Returns an identifier for the implementation of this object.
 289     */
 290     virtual ::rtl::OUString SAL_CALL
 291         getImplementationName (void)
 292         throw (::com::sun::star::uno::RuntimeException);
 293
 294     /** Return whether the specified service is supported by this class.
 295     */
 296     virtual sal_Bool SAL_CALL
 297         supportsService (const ::rtl::OUString& sServiceName)
 298         throw (::com::sun::star::uno::RuntimeException);
 299
 300     /** Returns a list of all supported services.  In this case that is just
 301         the AccessibleContext service.
 302     */
 303     virtual ::com::sun::star::uno::Sequence< ::rtl::OUString> SAL_CALL
 304         getSupportedServiceNames (void)
 305         throw (::com::sun::star::uno::RuntimeException);
 306
 307
 308     //=====  XInterface  ======================================================
 309
 310     // (XInterface methods need to be implemented to disambiguate
 311     // between those inherited through SwAcessibleContext and
 312     // XAccessibleEditableText).
 313
 314     virtual ::com::sun::star::uno::Any SAL_CALL queryInterface(
 315         const ::com::sun::star::uno::Type& aType )
 316         throw (::com::sun::star::uno::RuntimeException);
 317
 318     virtual void SAL_CALL acquire(  ) throw ()
 319         { SwAccessibleContext::acquire(); };
 320
 321     virtual void SAL_CALL release(  ) throw ()
 322         { SwAccessibleContext::release(); };
 323
 324     //====== XTypeProvider ====================================================
 325     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type > SAL_CALL getTypes(  ) throw(::com::sun::star::uno::RuntimeException);
 326     virtual ::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId(  ) throw(::com::sun::star::uno::RuntimeException);
 327
 328     //=====  XAccesibleText  ==================================================
 329     virtual sal_Int32 SAL_CALL getCaretPosition(  ) throw (::com::sun::star::uno::RuntimeException);
 330     virtual sal_Bool SAL_CALL setCaretPosition( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 331     virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 332     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);
 333     virtual ::com::sun::star::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 334     virtual sal_Int32 SAL_CALL getCharacterCount(  ) throw (::com::sun::star::uno::RuntimeException);
 335     virtual sal_Int32 SAL_CALL getIndexAtPoint( const ::com::sun::star::awt::Point& aPoint ) throw (::com::sun::star::uno::RuntimeException);
 336     virtual ::rtl::OUString SAL_CALL getSelectedText(  ) throw (::com::sun::star::uno::RuntimeException);
 337     virtual sal_Int32 SAL_CALL getSelectionStart(  ) throw (::com::sun::star::uno::RuntimeException);
 338     virtual sal_Int32 SAL_CALL getSelectionEnd(  ) throw (::com::sun::star::uno::RuntimeException);
 339     virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 340     virtual ::rtl::OUString SAL_CALL getText(  ) throw (::com::sun::star::uno::RuntimeException);
 341     virtual ::rtl::OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 342     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);
 343     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);
 344     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);
 345     virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 346
 347     //=====  XAccesibleEditableText  ==========================================
 348     virtual sal_Bool SAL_CALL cutText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 349     virtual sal_Bool SAL_CALL pasteText( sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 350     virtual sal_Bool SAL_CALL deleteText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 351     virtual sal_Bool SAL_CALL insertText( const ::rtl::OUString& sText, sal_Int32 nIndex ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 352     virtual sal_Bool SAL_CALL replaceText( sal_Int32 nStartIndex, sal_Int32 nEndIndex, const ::rtl::OUString& sReplacement ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 353     virtual sal_Bool SAL_CALL setAttributes( sal_Int32 nStartIndex, sal_Int32 nEndIndex, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& aAttributeSet ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 354     virtual sal_Bool SAL_CALL setText( const ::rtl::OUString& sText ) throw (::com::sun::star::uno::RuntimeException);
 355
 356     //=====  XAccessibleSelection  ============================================
 357     virtual void SAL_CALL selectAccessibleChild(
 358         sal_Int32 nChildIndex )
 359         throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
 360                 ::com::sun::star::uno::RuntimeException );
 361
 362     virtual sal_Bool SAL_CALL isAccessibleChildSelected(
 363         sal_Int32 nChildIndex )
 364         throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
 365                 ::com::sun::star::uno::RuntimeException );
 366     virtual void SAL_CALL clearAccessibleSelection(  )
 367         throw ( ::com::sun::star::uno::RuntimeException );
 368     virtual void SAL_CALL selectAllAccessibleChildren(  )
 369         throw ( ::com::sun::star::uno::RuntimeException );
 370     virtual sal_Int32 SAL_CALL getSelectedAccessibleChildCount(  )
 371         throw ( ::com::sun::star::uno::RuntimeException );
 372     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild(
 373         sal_Int32 nSelectedChildIndex )
 374         throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
 375                 ::com::sun::star::uno::RuntimeException);
 376
 377     // --> OD 2004-11-16 #111714# - index has to be treated as global child index.
 378     virtual void SAL_CALL deselectAccessibleChild(
 379         sal_Int32 nChildIndex )
 380         throw ( ::com::sun::star::lang::IndexOutOfBoundsException,
 381                 ::com::sun::star::uno::RuntimeException );
 382
 383     //=====  XAccessibleHypertext  ============================================
 384     virtual sal_Int32 SAL_CALL getHyperLinkCount()
 385         throw (::com::sun::star::uno::RuntimeException);
 386     virtual ::com::sun::star::uno::Reference<
 387             ::com::sun::star::accessibility::XAccessibleHyperlink >
 388         SAL_CALL getHyperLink( sal_Int32 nLinkIndex )
 389         throw (::com::sun::star::lang::IndexOutOfBoundsException,
 390                 ::com::sun::star::uno::RuntimeException);
 391     virtual sal_Int32 SAL_CALL getHyperLinkIndex( sal_Int32 nCharIndex )
 392         throw (::com::sun::star::lang::IndexOutOfBoundsException,
 393                 ::com::sun::star::uno::RuntimeException);
 394
 395     // --> OD 2008-05-19 #i71360#
 396     //=====  XAccesibleTextMarkup  ============================================
 397     virtual sal_Int32 SAL_CALL getTextMarkupCount( sal_Int32 nTextMarkupType )
 398             throw (::com::sun::star::lang::IllegalArgumentException,
 399                    ::com::sun::star::uno::RuntimeException);
 400
 401     virtual ::com::sun::star::accessibility::TextSegment SAL_CALL
 402             getTextMarkup( sal_Int32 nTextMarkupIndex,
 403                            sal_Int32 nTextMarkupType )
 404             throw (::com::sun::star::lang::IndexOutOfBoundsException,
 405                    ::com::sun::star::lang::IllegalArgumentException,
 406                    ::com::sun::star::uno::RuntimeException);
 407
 408     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::accessibility::TextSegment > SAL_CALL
 409             getTextMarkupAtIndex( sal_Int32 nCharIndex,
 410                                   sal_Int32 nTextMarkupType )
 411             throw (::com::sun::star::lang::IndexOutOfBoundsException,
 412                    ::com::sun::star::lang::IllegalArgumentException,
 413                    ::com::sun::star::uno::RuntimeException);
 414     // <--
 415
 416     // --> OD 2008-05-29 #i89175#
 417     //=====  XAccessibleMultiLineText  ========================================
 418     virtual sal_Int32 SAL_CALL getLineNumberAtIndex( sal_Int32 nIndex )
 419             throw (::com::sun::star::lang::IndexOutOfBoundsException,
 420                    ::com::sun::star::uno::RuntimeException);
 421
 422     virtual ::com::sun::star::accessibility::TextSegment SAL_CALL
 423             getTextAtLineNumber( sal_Int32 nLineNo )
 424             throw (::com::sun::star::lang::IndexOutOfBoundsException,
 425                    ::com::sun::star::uno::RuntimeException);
 426
 427     virtual ::com::sun::star::accessibility::TextSegment SAL_CALL
 428             getTextAtLineWithCaret()
 429             throw (::com::sun::star::uno::RuntimeException);
 430
 431     virtual sal_Int32 SAL_CALL getNumberOfLineWithCaret()
 432             throw (::com::sun::star::uno::RuntimeException);
 433     // <--
 434
 435     // --> OD 2006-07-11 #i63870#
 436     //=====  XAccesibleTextAttributes  ========================================
 437     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getDefaultAttributes( const ::com::sun::star::uno::Sequence< ::rtl::OUString >& aRequestedAttributes ) throw (::com::sun::star::uno::RuntimeException);
 438     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > SAL_CALL getRunAttributes( sal_Int32 nIndex, const ::com::sun::star::uno::Sequence< ::rtl::OUString >& aRequestedAttributes ) throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
 439     // <--
 440 };
 441
 442 inline SwAccessibleParagraph::operator ::com::sun::star::accessibility::XAccessibleText *()
 443 {
 444     return static_cast<
 445         ::com::sun::star::accessibility::XAccessibleEditableText * >( this );
 446 }
 447
 448 #endif
 449