include/svx/AccessibleControlShape.hxx

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  19
  20 #ifndef _SVX_ACCESSIBILITY_ACCESSIBLE_CONTROL_SHAPE_HXX
  21 #define _SVX_ACCESSIBILITY_ACCESSIBLE_CONTROL_SHAPE_HXX
  22
  23 #include <svx/AccessibleShape.hxx>
  24
  25 #include <com/sun/star/accessibility/XAccessibleAction.hpp>
  26 #include <com/sun/star/accessibility/XAccessibleEventListener.hpp>
  27 #include <com/sun/star/util/XModeChangeBroadcaster.hpp>
  28 #include <com/sun/star/container/XContainerListener.hpp>
  29 #include <cppuhelper/implbase3.hxx>
  30 #include <comphelper/uno3.hxx>
  31
  32 namespace com { namespace sun { namespace star { namespace awt {
  33     class XControl;
  34 } } } }
  35
  36 namespace comphelper
  37 {
  38     class OWrappedAccessibleChildrenManager;
  39 }
  40
  41 class SdrObject;
  42 namespace accessibility {
  43
  44     typedef ::cppu::ImplHelper4 <   ::com::sun::star::beans::XPropertyChangeListener
  45                                 ,   ::com::sun::star::util::XModeChangeListener
  46                                                 ,   ::com::sun::star::container::XContainerListener
  47                                 ,   ::com::sun::star::accessibility::XAccessibleEventListener
  48                                 >   AccessibleControlShape_Base;
  49 /** @descr
  50 */
  51 class AccessibleControlShape
  52         :public AccessibleShape
  53         ,public AccessibleControlShape_Base
  54 {
  55 public:
  56     //=====  internal  ========================================================
  57     AccessibleControlShape(
  58         const AccessibleShapeInfo& rShapeInfo,
  59         const AccessibleShapeTreeInfo& rShapeTreeInfo);
  60     virtual ~AccessibleControlShape( );
  61
  62 protected:
  63     //---  XAccessible  ----------------------------------------
  64     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext> SAL_CALL getAccessibleContext( ) throw(::com::sun::star::uno::RuntimeException);
  65
  66     //---  XAccessibleComponent  -------------------------------
  67     /// forward the focus to the contained control(in alive mode)
  68     virtual void SAL_CALL grabFocus( ) throw(::com::sun::star::uno::RuntimeException);
  69
  70     //---  XAccessibleContext  ---------------------------------
  71     virtual sal_Int32 SAL_CALL getAccessibleChildCount( ) throw(::com::sun::star::uno::RuntimeException);
  72     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);
  73     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet(  ) throw (::com::sun::star::uno::RuntimeException);
  74
  75     //---  XServiceInfo  ---------------------------------------
  76     virtual OUString SAL_CALL getImplementationName( ) throw(::com::sun::star::uno::RuntimeException);
  77
  78     //---  XInterface  -----------------------------------------
  79     DECLARE_XINTERFACE( )
  80
  81     //---  XTypeProvider  --------------------------------------
  82     DECLARE_XTYPEPROVIDER( )
  83
  84     //---  XPropertyChangeListener  ----------------------------
  85     virtual void SAL_CALL propertyChange( const ::com::sun::star::beans::PropertyChangeEvent& _rEvent ) throw(::com::sun::star::uno::RuntimeException);
  86
  87     //---  XComponent  -----------------------------------------
  88     virtual void SAL_CALL disposing( );
  89
  90     //---  XEventListener  -------------------------------------
  91     virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw(::com::sun::star::uno::RuntimeException);
  92
  93     //---  XModeChangeListener  --------------------------------
  94     virtual void SAL_CALL modeChanged( const ::com::sun::star::util::ModeChangeEvent& _rSource ) throw(::com::sun::star::uno::RuntimeException);
  95
  96     //---  XAccessibleEventListener ----------------------------
  97     virtual void SAL_CALL notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw(::com::sun::star::uno::RuntimeException);
  98
  99     //---  document::XEventListener ----------------------------
 100     using AccessibleShape::notifyEvent;
 101
 102     // XVclContainerListener
 103     virtual void SAL_CALL elementInserted( const ::com::sun::star::container::ContainerEvent& Event ) throw (::com::sun::star::uno::RuntimeException);
 104     virtual void SAL_CALL elementRemoved( const ::com::sun::star::container::ContainerEvent& Event ) throw (::com::sun::star::uno::RuntimeException);
 105     virtual void SAL_CALL elementReplaced( const ::com::sun::star::container::ContainerEvent& Event ) throw (::com::sun::star::uno::RuntimeException);
 106
 107 protected:
 108     /** Initialize a new shape.  See the documentation of the base' constructor
 109         for the reason of this method's existence.
 110     */
 111     virtual void Init( );
 112
 113     /// Create a name string that contains the accessible name.
 114     virtual OUString
 115         CreateAccessibleBaseName( )
 116         throw(::com::sun::star::uno::RuntimeException);
 117
 118     /** Create a unique name string that contains the accessible name.  The
 119         name consists of the base name and the index.
 120     */
 121     virtual OUString
 122         CreateAccessibleName( )
 123         throw(::com::sun::star::uno::RuntimeException);
 124
 125     /// Create a description string that contains the accessible description.
 126     virtual OUString
 127         CreateAccessibleDescription( )
 128         throw(::com::sun::star::uno::RuntimeException);
 129
 130 #ifdef DBG_UTIL
 131     /// Set the specified state
 132     virtual sal_Bool SetState( sal_Int16 _nState );
 133 #endif // DBG_UTIL
 134
 135     /// (safely) reads the given property from the model of the UNO control
 136     OUString getControlModelStringProperty( const OUString& _rPropertyName ) const SAL_THROW(( ));
 137
 138     /// ensure that our control model exists(will be retrieved upon need only)
 139     sal_Bool ensureControlModelAccess( ) SAL_THROW(( ));
 140
 141     /// ensures that we're listening for the given property if(and only if!) necessary
 142     bool ensureListeningState( const bool _bCurrentlyListening, const bool _bNeedNewListening,
 143                 const OUString& _rPropertyName );
 144
 145     /// starts multiplexing the state changes of our aggregate context
 146     void    startStateMultiplexing( );
 147     /// stops multiplexing the state changes of our aggregate context
 148     void    stopStateMultiplexing( );
 149
 150     /// retrieves the SdrObject of the shape we represent
 151     SdrObject*  getSdrObject( ) const;
 152
 153     /** adjusts our AccessibleRole, depending on the control type we're working for
 154
 155         <p>Only to be called during inituialization</p>
 156     */
 157     void        adjustAccessibleRole( );
 158
 159     /** initializes composed states of the context
 160
 161         <p>Some of the states of our inner context need to be propagated to the "composed context", too
 162         (such as "checked" for check boxes). At lifetime, this is done by multiplexing state changes,
 163         at initialization time, this method is used.</p>
 164     */
 165     void        initializeComposedState( );
 166
 167 private:
 168     ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >
 169                     m_xControlModel;
 170     ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySetInfo >
 171                     m_xModelPropsMeta;          // cache this for performance reasons
 172     ::com::sun::star::uno::Reference< ::com::sun::star::awt::XControl >
 173                     m_xUnoControl;              // our UNO control
 174
 175     ::com::sun::star::uno::WeakReference< ::com::sun::star::accessibility::XAccessibleContext >
 176                     m_aControlContext;      // the AccessibleContext of the control
 177     ::com::sun::star::uno::Reference< ::com::sun::star::uno::XAggregation >
 178                     m_xControlContextProxy; // the proxy for "aggregating" the AccessibleContext of the control
 179     ::com::sun::star::uno::Reference< ::com::sun::star::lang::XTypeProvider >
 180                     m_xControlContextTypeAccess;    // cached interface of our aggregate
 181     ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >
 182                     m_xControlContextComponent;     // cached interface of our aggregate
 183
 184     ::comphelper::OWrappedAccessibleChildrenManager*
 185                     m_pChildManager;
 186
 187     bool        m_bListeningForName     : 1;    // are we currently listening for changes of the "Name" property?
 188     bool        m_bListeningForDesc     : 1;    // are we currently listening for changes of the "HelpText" property?
 189     bool        m_bMultiplexingStates   : 1;    // are we currently multiplexing state changes of the native context?
 190     bool        m_bDisposeNativeContext : 1;    // do we need to dispose mxNativeContextComponent?
 191     bool        m_bWaitingForControl    : 1;    // if we are created before our control exists, we need to wait for it to appear ...
 192
 193 private:
 194     /** Don't use the default constructor.  Use the public constructor that
 195         takes the original shape and the parent as arguments instead.
 196     */
 197     AccessibleControlShape( );
 198
 199     /// Don't use the constructor. not implemented.
 200     AccessibleControlShape(const AccessibleControlShape&);
 201
 202     /// Don't use the assignment operator. not implemented.
 203     AccessibleControlShape& operator= (const AccessibleControlShape&);
 204 };
 205
 206 } // end of namespace accessibility
 207
 208 #endif
 209
 210 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */