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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _ACCBASE_HXX
#define _ACCBASE_HXX
#include <accframe.hxx>
#include <accmap.hxx>
#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <cppuhelper/implbase5.hxx>
#include <cppuhelper/interfacecontainer.hxx>
class Window;
class SwAccessibleMap;
class SwCrsrShell;
class SdrObject;
class SwPaM;
namespace utl {
class AccessibleStateSetHelper;
}
namespace accessibility {
class AccessibleShape;
}
const sal_Char sAccessibleServiceName[] = "com.sun.star.accessibility.Accessible";
class SwAccessibleContext :
public ::cppu::WeakImplHelper5<
::com::sun::star::accessibility::XAccessible,
::com::sun::star::accessibility::XAccessibleContext,
::com::sun::star::accessibility::XAccessibleComponent,
::com::sun::star::accessibility::XAccessibleEventBroadcaster,
::com::sun::star::lang::XServiceInfo
>,
public SwAccessibleFrame
{
// The implements for the XAccessibleSelection interface has been
// 'externalized' and wants access to the protected members like
// GetMap, GetChild, GetParent, and GetFrm.
friend class SwAccessibleSelectionHelper;
protected:
mutable ::osl::Mutex aListenerMutex;
mutable ::osl::Mutex aMutex;
private:
OUString sName; // immutable outside constructor
// The parent if it has been retrieved. This is always an
// SwAccessibleContext. (protected by Mutex)
::com::sun::star::uno::WeakReference <
::com::sun::star::accessibility::XAccessible > xWeakParent;
SwAccessibleMap *pMap; // must be protected by solar mutex
sal_uInt32 nClientId; // client id in the AccessibleEventNotifier queue
sal_Int16 nRole; // immutable outside constructor
// The current states (protected by mutex)
sal_Bool bIsShowingState : 1;
sal_Bool bIsEditableState : 1;
sal_Bool bIsOpaqueState : 1;
sal_Bool bIsDefuncState : 1;
// Are we currently disposing that object (protected by solar mutex)?
sal_Bool bDisposing : 1;
// #i85634# - boolean, indicating if the accessible context is
// in general registered at the accessible map.
bool bRegisteredAtAccessibleMap;
void InitStates();
protected:
void SetName( const OUString& rName ) { sName = rName; }
inline sal_Int16 GetRole() const
{
return nRole;
}
void SetParent( SwAccessibleContext *pParent );
::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> GetWeakParent() const;
sal_Bool IsDisposing() const { return bDisposing; }
Window *GetWindow();
SwAccessibleMap *GetMap() { return pMap; }
const SwAccessibleMap *GetMap() const { return pMap; }
/** convenience method to get the SwViewShell through accessibility map */
inline SwViewShell* GetShell()
{
return GetMap()->GetShell();
}
inline const SwViewShell* GetShell() const
{
return GetMap()->GetShell();
}
/** convenience method to get SwCrsrShell through accessibility map
* @returns SwCrsrShell, or NULL if none is found */
SwCrsrShell* GetCrsrShell();
const SwCrsrShell* GetCrsrShell() const;
// Notify all children that the vis araea has changed.
// The SwFrm might belong to the current object or to any other child or
// grandchild.
void ChildrenScrolled( const SwFrm *pFrm, const SwRect& rOldVisArea );
// The context's showing state changed. May only be called for context that
// exist even if they aren't visible.
void Scrolled( const SwRect& rOldVisArea );
// A child has been moved while setting the vis area
void ScrolledWithin( const SwRect& rOldVisArea );
// The has been added while setting the vis area
void ScrolledIn();
// The context has to be removed while setting the vis area
void ScrolledOut( const SwRect& rOldVisArea );
// Invalidate the states of all children of the specified SwFrm. The
// SwFrm might belong the current object or to any child or grandchild!
// #i27301# - use new type definition for <_nStates>
void InvalidateChildrenStates( const SwFrm* _pFrm,
tAccessibleStates _nStates );
// Dispose children of the specified SwFrm. The SwFrm might belong to
// the current object or to any other child or grandchild.
void DisposeChildren( const SwFrm *pFrm,
sal_Bool bRecursive );
void DisposeShape( const SdrObject *pObj,
::accessibility::AccessibleShape *pAccImpl );
void ScrolledInShape( const SdrObject *pObj,
::accessibility::AccessibleShape *pAccImpl );
virtual void _InvalidateContent( sal_Bool bVisibleDataFired );
virtual void _InvalidateCursorPos();
virtual void _InvalidateFocus();
public:
void FireAccessibleEvent( ::com::sun::star::accessibility::AccessibleEventObject& rEvent );
protected:
// broadcast visual data event
void FireVisibleDataEvent();
// broadcast state change event
void FireStateChangedEvent( sal_Int16 nState, sal_Bool bNewState );
// Set states for getAccessibleStateSet.
// This base class sets DEFUNC(0/1), EDITABLE(0/1), ENABLED(1),
// SHOWING(0/1), OPAQUE(0/1) and VISIBLE(1).
virtual void GetStates( ::utl::AccessibleStateSetHelper& rStateSet );
sal_Bool IsEditableState();
virtual ::com::sun::star::awt::Rectangle SAL_CALL
getBoundsImpl(sal_Bool bRelative)
throw (::com::sun::star::uno::RuntimeException);
// #i85634#
inline void NotRegisteredAtAccessibleMap()
{
bRegisteredAtAccessibleMap = false;
}
void RemoveFrmFromAccessibleMap();
virtual ~SwAccessibleContext();
public:
SwAccessibleContext( SwAccessibleMap *pMap, sal_Int16 nRole,
const SwFrm *pFrm );
// XAccessible
// Return the XAccessibleContext.
virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext> SAL_CALL
getAccessibleContext (void) throw (com::sun::star::uno::RuntimeException);
// XAccessibleContext
// Return the number of currently visible children.
virtual sal_Int32 SAL_CALL getAccessibleChildCount (void)
throw (::com::sun::star::uno::RuntimeException);
// Return the specified child or NULL if index is invalid.
virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
getAccessibleChild (sal_Int32 nIndex)
throw (::com::sun::star::uno::RuntimeException,
::com::sun::star::lang::IndexOutOfBoundsException);
// Return a reference to the parent.
virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible> SAL_CALL
getAccessibleParent (void)
throw (::com::sun::star::uno::RuntimeException);
// Return this objects index among the parents children.
virtual sal_Int32 SAL_CALL
getAccessibleIndexInParent (void)
throw (::com::sun::star::uno::RuntimeException);
// Return this object's role.
virtual sal_Int16 SAL_CALL
getAccessibleRole (void)
throw (::com::sun::star::uno::RuntimeException);
// Return this object's description.
virtual OUString SAL_CALL
getAccessibleDescription (void)
throw (::com::sun::star::uno::RuntimeException);
// Return the object's current name.
virtual OUString SAL_CALL
getAccessibleName (void)
throw (::com::sun::star::uno::RuntimeException);
// Return NULL to indicate that an empty relation set.
virtual ::com::sun::star::uno::Reference<
::com::sun::star::accessibility::XAccessibleRelationSet> SAL_CALL
getAccessibleRelationSet (void)
throw (::com::sun::star::uno::RuntimeException);
// Return the set of current states.
virtual ::com::sun::star::uno::Reference<
::com::sun::star::accessibility::XAccessibleStateSet> SAL_CALL
getAccessibleStateSet (void)
throw (::com::sun::star::uno::RuntimeException);
/** Return the parents locale or throw exception if this object has no
parent yet/anymore. */
virtual ::com::sun::star::lang::Locale SAL_CALL
getLocale (void)
throw (::com::sun::star::accessibility::IllegalAccessibleComponentStateException, ::com::sun::star::uno::RuntimeException);
// XAccessibleEventBroadcaster
virtual void SAL_CALL addAccessibleEventListener(
const ::com::sun::star::uno::Reference<
::com::sun::star::accessibility::XAccessibleEventListener >& xListener )
throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL removeAccessibleEventListener(
const ::com::sun::star::uno::Reference<
::com::sun::star::accessibility::XAccessibleEventListener >& xListener )
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 ::com::sun::star::uno::Any SAL_CALL getAccessibleKeyBinding()
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);
// XServiceInfo
/** Returns an identifier for the implementation of this object. */
virtual OUString SAL_CALL
getImplementationName (void)
throw (::com::sun::star::uno::RuntimeException);
/** Return whether the specified service is supported by this class. */
virtual sal_Bool SAL_CALL
supportsService (const OUString& sServiceName)
throw (::com::sun::star::uno::RuntimeException);
/** Returns a list of all supported services. In this case that is just
the AccessibleContext service. */
virtual ::com::sun::star::uno::Sequence< OUString> SAL_CALL
getSupportedServiceNames (void)
throw (::com::sun::star::uno::RuntimeException);
// thread safe C++ interface
// The object is not visible an longer and should be destroyed
virtual void Dispose( sal_Bool bRecursive = sal_False );
// The child object is not visible an longer and should be destroyed
virtual void DisposeChild( const sw::access::SwAccessibleChild& rFrmOrObj, sal_Bool bRecursive );
// The object has been moved by the layout
virtual void InvalidatePosOrSize( const SwRect& rFrm );
// The vhild object has been moved by the layout
virtual void InvalidateChildPosOrSize( const sw::access::SwAccessibleChild& rFrmOrObj,
const SwRect& rFrm );
// The content may have changed (but it hasn't tohave changed)
void InvalidateContent();
// The caretPos has changed
void InvalidateCursorPos();
// The Focus state has changed
void InvalidateFocus();
// Check states
// #i27301# - use new type definition for <_nStates>
void InvalidateStates( tAccessibleStates _nStates );
// the XAccessibleRelationSet may have changed
void InvalidateRelation( sal_uInt16 nType );
void InvalidateTextSelection(); // #i27301# - text selection has changed
void InvalidateAttr(); // #i88069# - attributes has changed
bool HasAdditionalAccessibleChildren();
// #i88070# - get additional child by index
Window* GetAdditionalAccessibleChild( const sal_Int32 nIndex );
// #i88070# - get all additional accessible children
void GetAdditionalAccessibleChildren( std::vector< Window* >* pChildren );
const OUString& GetName() const { return sName; }
virtual sal_Bool HasCursor(); // required by map to remember that object
sal_Bool Select( SwPaM *pPaM, SdrObject *pObj, sal_Bool bAdd );
inline sal_Bool Select( SwPaM& rPaM )
{
return Select( &rPaM, 0, sal_False );
}
inline sal_Bool Select( SdrObject *pObj, sal_Bool bAdd )
{
return Select( 0, pObj, bAdd );
}
static OUString GetResource( sal_uInt16 nResId,
const OUString *pArg1 = 0,
const OUString *pArg2 = 0 );
};
// some heaviliy used exception support
const sal_Char sDefunc[] = "object is defunctional";
const sal_Char sMissingWindow[] = "window is missing";
#define THROW_RUNTIME_EXCEPTION( ifc, msg ) \
::com::sun::star::uno::Reference < ifc > xThis( this ); \
::com::sun::star::uno::RuntimeException aExcept( \
OUString( msg ), xThis ); \
throw aExcept;
#define CHECK_FOR_DEFUNC_THIS( ifc, ths ) \
if( !(GetFrm() && GetMap()) ) \
{ \
::com::sun::star::uno::Reference < ifc > xThis( ths ); \
::com::sun::star::lang::DisposedException aExcept( \
OUString( sDefunc ), \
xThis ); \
throw aExcept; \
}
#define CHECK_FOR_DEFUNC( ifc ) \
CHECK_FOR_DEFUNC_THIS( ifc, this )
#define CHECK_FOR_WINDOW( i, w ) \
if( !(w) ) \
{ \
THROW_RUNTIME_EXCEPTION( i, sMissingWindow ); \
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
