LCOV - code coverage report
Current view: top level - libreoffice/chart2/source/controller/inc - AccessibleBase.hxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 7 0.0 %
Date: 2012-12-27 Functions: 0 7 0.0 %
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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : #ifndef _CHART2_ACCESSIBLEBASE_HXX_
      20             : #define _CHART2_ACCESSIBLEBASE_HXX_
      21             : 
      22             : #include "ObjectIdentifier.hxx"
      23             : 
      24             : #include <com/sun/star/chart2/XChartDocument.hpp>
      25             : #include <com/sun/star/accessibility/XAccessible.hpp>
      26             : #include <com/sun/star/accessibility/XAccessibleContext.hpp>
      27             : #include <com/sun/star/accessibility/XAccessibleComponent.hpp>
      28             : #include <com/sun/star/lang/XServiceInfo.hpp>
      29             : #include <com/sun/star/document/XEventListener.hpp>
      30             : #include <com/sun/star/lang/XEventListener.hpp>
      31             : #include <com/sun/star/lang/DisposedException.hpp>
      32             : #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
      33             : #include <com/sun/star/view/XSelectionSupplier.hpp>
      34             : #include <comphelper/accessibleeventnotifier.hxx>
      35             : #include <cppuhelper/compbase6.hxx>
      36             : #include <cppuhelper/interfacecontainer.hxx>
      37             : #include <unotools/accessiblestatesethelper.hxx>
      38             : 
      39             : #include <vector>
      40             : #include <map>
      41             : #include <boost/shared_ptr.hpp>
      42             : 
      43             : #include "MutexContainer.hxx"
      44             : 
      45             : class SdrView;
      46             : 
      47             : namespace accessibility
      48             : {
      49             : class IAccessibleViewForwarder;
      50             : }
      51             : 
      52             : namespace chart
      53             : {
      54             : 
      55             : class AccessibleBase;
      56             : class ObjectHierarchy;
      57             : 
      58             : typedef ObjectIdentifier AccessibleUniqueId;
      59             : 
      60           0 : struct AccessibleElementInfo
      61             : {
      62             :     AccessibleUniqueId m_aOID;
      63             : 
      64             :     ::com::sun::star::uno::WeakReference<
      65             :             ::com::sun::star::chart2::XChartDocument > m_xChartDocument;
      66             :     ::com::sun::star::uno::WeakReference<
      67             :             ::com::sun::star::view::XSelectionSupplier > m_xSelectionSupplier;
      68             :     ::com::sun::star::uno::WeakReference<
      69             :             ::com::sun::star::uno::XInterface >   m_xView;
      70             :     ::com::sun::star::uno::WeakReference<
      71             :             ::com::sun::star::awt::XWindow >      m_xWindow;
      72             : 
      73             :     ::boost::shared_ptr< ObjectHierarchy > m_spObjectHierarchy;
      74             : 
      75             :     AccessibleBase * m_pParent;
      76             :     SdrView* m_pSdrView;
      77             :     ::accessibility::IAccessibleViewForwarder* m_pViewForwarder;
      78             : };
      79             : 
      80             : 
      81             : namespace impl
      82             : {
      83             : typedef ::cppu::PartialWeakComponentImplHelper6<
      84             :         ::com::sun::star::accessibility::XAccessible,
      85             :         ::com::sun::star::accessibility::XAccessibleContext,
      86             :         ::com::sun::star::accessibility::XAccessibleComponent,
      87             :         ::com::sun::star::accessibility::XAccessibleEventBroadcaster,
      88             :         ::com::sun::star::lang::XServiceInfo,
      89             :         ::com::sun::star::lang::XEventListener
      90             :         > AccessibleBase_Base;
      91             : }
      92             : 
      93             : /** Base class for all Chart Accessibility objects
      94             :  */
      95             : class AccessibleBase :
      96             :     public MutexContainer,
      97             :     public impl::AccessibleBase_Base
      98             : {
      99             : public:
     100             :     enum EventType
     101             :     {
     102             :         OBJECT_CHANGE,
     103             :         GOT_SELECTION,
     104             :         LOST_SELECTION,
     105             :         PROPERTY_CHANGE
     106             :     };
     107             : 
     108             :     AccessibleBase( const AccessibleElementInfo & rAccInfo,
     109             :                     bool bMayHaveChildren,
     110             :                     bool bAlwaysTransparent = false );
     111             :     virtual ~AccessibleBase();
     112             : 
     113             : protected:
     114             :     // for all calls to protected methods it is assumed that the mutex is locked
     115             :     // unless calls outside via UNO, e.g. event notification, are done
     116             : 
     117             :     /** @param bThrowException if true, a DisposedException is thrown if the
     118             :                object is already disposed
     119             :         @return true, if the component is already disposed and bThrowException is false,
     120             :                 false otherwise
     121             :      */
     122             :     bool             CheckDisposeState( bool bThrowException = true ) const throw (::com::sun::star::lang::DisposedException);
     123             : 
     124             :     /** Events coming from the core have to be processed in this methods.  The
     125             :         default implementation returns false, which indicates that the object is
     126             :         not interested in the event.  To react on events you have to implement
     127             :         this method in derived classes.
     128             : 
     129             :         The default implementation iterates over all children and forwards the
     130             :         event until the first child returns true.
     131             : 
     132             :         @param nObjId contains the object id of chart objects.  If the object is
     133             :                 no chart object, the event is not broadcast.
     134             :         @return If an object is the addressee of the event it should return
     135             :                 true, false otherwise.
     136             :      */
     137             :     virtual bool     NotifyEvent( EventType eType, const AccessibleUniqueId & rId );
     138             : 
     139             :     /** Adds a state to the set.
     140             :     */
     141             :     void             AddState( sal_Int16 aState ) throw (::com::sun::star::uno::RuntimeException);
     142             : 
     143             :     /** Removes a state from the set if the set contains the state, otherwise
     144             :         nothing is done.
     145             :     */
     146             :     void             RemoveState( sal_Int16 aState ) throw (::com::sun::star::uno::RuntimeException);
     147             : 
     148             :     /** has to be overloaded by derived classes that support child elements.
     149             :         With this method a rescan is initiated that should result in a correct
     150             :         list of children.
     151             : 
     152             :         This method is called when access to any methods concerning children is
     153             :         invoked for the first time.
     154             :      */
     155             :     bool UpdateChildren();
     156             : 
     157             :     /** Is called by UpdateChildren.  This method is only called if an update is
     158             :         really necessary.
     159             :      */
     160             :     virtual bool ImplUpdateChildren();
     161             : 
     162             :     /** adds a child to the end of the internal vector of children.  As a
     163             :         result, the child-count increases by one, but all existing children keep
     164             :         their indices.
     165             : 
     166             :         Important: as the implementation is needed, this should remain the only
     167             :         method for adding children (i.e. there mustn't be an AddChild( Reference<
     168             :         XAccessible > ) or the like).
     169             :      */
     170             :     void         AddChild( AccessibleBase* pChild );
     171             : 
     172             :     /** removes a child from the internal vector.  All children with index
     173             :         greater than the index of the removed element get an index one less than
     174             :         before.
     175             :      */
     176             :     void         RemoveChildByOId( const ObjectIdentifier& rOId );
     177             : 
     178             :     /** Retrieve the pixel coordinates of logical coordinates (0,0) of the
     179             :         current logic coordinate system.  This can be used for
     180             :         getLocationOnScreen, if the coordinates of an object are not relative to
     181             :         its direct parent, but a parent higher up in hierarchy.
     182             : 
     183             :         @return the (x,y) pixel coordinates of the upper left corner
     184             :      */
     185             :     virtual ::com::sun::star::awt::Point   GetUpperLeftOnScreen() const;
     186             : 
     187             :     /** This method creates an AccessibleEventObject and sends it to all
     188             :         listeners that are currently listening to this object
     189             : 
     190             :         If bSendGlobally is true, the event is also broadcast via
     191             :         vcl::unohelper::NotifyAccessibleStateEventGlobally()
     192             :      */
     193             :     void         BroadcastAccEvent( sal_Int16 nId,
     194             :                                     const ::com::sun::star::uno::Any & rNew,
     195             :                                     const ::com::sun::star::uno::Any & rOld,
     196             :                                     bool bSendGlobally = false ) const;
     197             : 
     198             :     /** Removes all children from the internal lists and broadcasts child remove
     199             :         events.
     200             : 
     201             :         This method cares about mutex locking, and thus should be called without
     202             :         the mutex locked.
     203             :      */
     204             :     virtual void KillAllChildren();
     205             : 
     206             :     /** Is called from getAccessibleChild(). Before this method is called, an
     207             :         update of children is done if necessary.
     208             :      */
     209             :     virtual ::com::sun::star::uno::Reference<
     210             :             ::com::sun::star::accessibility::XAccessible >
     211             :         ImplGetAccessibleChildById( sal_Int32 i ) const
     212             :         throw (::com::sun::star::lang::IndexOutOfBoundsException,
     213             :                ::com::sun::star::uno::RuntimeException);
     214             : 
     215             :     /** Is called from getAccessibleChildCount(). Before this method is called,
     216             :         an update of children is done if necessary.
     217             :      */
     218             :     virtual sal_Int32 ImplGetAccessibleChildCount() const
     219             :         throw (::com::sun::star::uno::RuntimeException);
     220             : 
     221             :     AccessibleElementInfo GetInfo() const;
     222             :     void SetInfo( const AccessibleElementInfo & rNewInfo );
     223             :     AccessibleUniqueId GetId() const;
     224             : 
     225             :     // ________ XComponent ________
     226           0 :     virtual void SAL_CALL dispose()throw (::com::sun::star::uno::RuntimeException)
     227           0 :         { WeakComponentImplHelperBase::dispose(); }
     228           0 :     virtual void SAL_CALL addEventListener(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener > & xListener)throw (::com::sun::star::uno::RuntimeException)
     229           0 :         { WeakComponentImplHelperBase::addEventListener(xListener); }
     230           0 :     virtual void SAL_CALL removeEventListener(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XEventListener > & xListener)throw (::com::sun::star::uno::RuntimeException)
     231           0 :         { WeakComponentImplHelperBase::removeEventListener(xListener); }
     232             : 
     233             : 
     234             :     // ________ WeakComponentImplHelper (XComponent::dispose) ________
     235             :     virtual void SAL_CALL disposing();
     236             : 
     237             :     // ________ XAccessible ________
     238             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext()
     239             :         throw (::com::sun::star::uno::RuntimeException);
     240             : 
     241             :     // ________ XAccessibleContext ________
     242             :     virtual sal_Int32 SAL_CALL getAccessibleChildCount()
     243             :         throw (::com::sun::star::uno::RuntimeException);
     244             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL
     245             :         getAccessibleChild( sal_Int32 i )
     246             :         throw (::com::sun::star::lang::IndexOutOfBoundsException,
     247             :                ::com::sun::star::uno::RuntimeException);
     248             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL
     249             :         getAccessibleParent()
     250             :         throw (::com::sun::star::uno::RuntimeException);
     251             :     virtual sal_Int32 SAL_CALL getAccessibleIndexInParent()
     252             :         throw (::com::sun::star::uno::RuntimeException);
     253             :     /// @return AccessibleRole.SHAPE
     254             :     virtual sal_Int16 SAL_CALL getAccessibleRole()
     255             :         throw (::com::sun::star::uno::RuntimeException);
     256             :     // has to be implemented by derived classes
     257             : //     virtual ::rtl::OUString SAL_CALL getAccessibleName()
     258             : //         throw (::com::sun::star::uno::RuntimeException);
     259             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleRelationSet > SAL_CALL
     260             :         getAccessibleRelationSet()
     261             :         throw (::com::sun::star::uno::RuntimeException);
     262             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleStateSet > SAL_CALL
     263             :         getAccessibleStateSet()
     264             :         throw (::com::sun::star::uno::RuntimeException);
     265             :     virtual ::com::sun::star::lang::Locale SAL_CALL getLocale()
     266             :         throw (::com::sun::star::accessibility::IllegalAccessibleComponentStateException,
     267             :                ::com::sun::star::uno::RuntimeException);
     268             :     // has to be implemented by derived classes
     269             : //     virtual ::rtl::OUString SAL_CALL getAccessibleDescription()
     270             : //         throw (::com::sun::star::uno::RuntimeException);
     271             : 
     272             :     // ________ XAccessibleComponent ________
     273             :     virtual sal_Bool SAL_CALL containsPoint(
     274             :         const ::com::sun::star::awt::Point& aPoint )
     275             :         throw (::com::sun::star::uno::RuntimeException);
     276             :     virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL
     277             :         getAccessibleAtPoint( const ::com::sun::star::awt::Point& aPoint )
     278             :         throw (::com::sun::star::uno::RuntimeException);
     279             :     // has to be defined in derived classes
     280             :     virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds()
     281             :         throw (::com::sun::star::uno::RuntimeException);
     282             :     virtual ::com::sun::star::awt::Point SAL_CALL getLocation()
     283             :         throw (::com::sun::star::uno::RuntimeException);
     284             :     virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen()
     285             :         throw (::com::sun::star::uno::RuntimeException);
     286             :     virtual ::com::sun::star::awt::Size SAL_CALL getSize()
     287             :         throw (::com::sun::star::uno::RuntimeException);
     288             :     virtual void SAL_CALL grabFocus()
     289             :         throw (::com::sun::star::uno::RuntimeException);
     290             :     virtual sal_Int32 SAL_CALL getForeground()
     291             :         throw (::com::sun::star::uno::RuntimeException);
     292             :     virtual sal_Int32 SAL_CALL getBackground()
     293             :         throw (::com::sun::star::uno::RuntimeException);
     294             : 
     295             :     // ________ XServiceInfo ________
     296             :     virtual ::rtl::OUString SAL_CALL getImplementationName()
     297             :         throw (::com::sun::star::uno::RuntimeException);
     298             :     virtual sal_Bool SAL_CALL supportsService(
     299             :         const ::rtl::OUString& ServiceName )
     300             :         throw (::com::sun::star::uno::RuntimeException);
     301             :     virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames()
     302             :         throw (::com::sun::star::uno::RuntimeException);
     303             : 
     304             :     // ________ XEventListener ________
     305             :     virtual void SAL_CALL disposing(
     306             :         const ::com::sun::star::lang::EventObject& Source )
     307             :         throw (::com::sun::star::uno::RuntimeException);
     308             : 
     309             :     // ________ XAccessibleEventBroadcaster ________
     310             :     virtual void SAL_CALL addAccessibleEventListener(
     311             :         const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener >& xListener )
     312             :         throw (::com::sun::star::uno::RuntimeException);
     313             :     virtual void SAL_CALL removeAccessibleEventListener(
     314             :         const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener >& xListener )
     315             :         throw (::com::sun::star::uno::RuntimeException);
     316             : 
     317             : private:
     318             :     enum eColorType
     319             :     {
     320             :         ACC_BASE_FOREGROUND,
     321             :         ACC_BASE_BACKGROUND
     322             :     };
     323             :     sal_Int32 getColor( eColorType eColType );
     324             : 
     325             : private:
     326             :     typedef ::com::sun::star::uno::Reference<
     327             :             ::com::sun::star::accessibility::XAccessible > tAccessible;
     328             :     /** type of the vector containing the accessible children
     329             :      */
     330             :     typedef ::std::vector< tAccessible > ChildListVectorType;
     331             :     /** type of the hash containing a vector index for every AccessibleUniqueId
     332             :         of the object in the child list
     333             :      */
     334             :     typedef ::std::map< ObjectIdentifier, tAccessible > ChildOIDMap;
     335             : 
     336             :     bool                                  m_bIsDisposed;
     337             :     const bool                            m_bMayHaveChildren;
     338             :     bool                                  m_bChildrenInitialized;
     339             :     ChildListVectorType                   m_aChildList;
     340             : 
     341             :     ChildOIDMap                           m_aChildOIDMap;
     342             : 
     343             :     ::comphelper::AccessibleEventNotifier::TClientId      m_nEventNotifierId;
     344             : 
     345             :     /** Implementation helper for getAccessibleStateSet()
     346             : 
     347             :         Note: This member must come before m_aStateSet!
     348             :      */
     349             :     ::utl::AccessibleStateSetHelper *     m_pStateSetHelper;
     350             :     /** this is returned in getAccessibleStateSet().
     351             : 
     352             :         The implementation is an ::utl::AccessibleStateSetHelper.  To access
     353             :         implementation methods use m_pStateSetHelper.
     354             : 
     355             :         Note: Keeping this reference ensures, that the helper object is only
     356             :               destroyed after this object has been disposed().
     357             :      */
     358             :     ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleStateSet >
     359             :         m_aStateSet;
     360             : 
     361             :     AccessibleElementInfo  m_aAccInfo;
     362             :     const bool             m_bAlwaysTransparent;
     363             :     /** denotes if the state-set is initialized.  On initialization the selected
     364             :         state is checked.
     365             : 
     366             :         This variable is monitored by the solar mutex!
     367             : 
     368             :         Note: declared volatile to enable double-check-locking
     369             :      */
     370             :     volatile bool          m_bStateSetInitialized;
     371             : };
     372             : 
     373             : }  // namespace chart
     374             : 
     375             : #endif
     376             : 
     377             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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