/* -*- 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 .
*/
#pragma once
#include "accframe.hxx"
#include <accmap.hxx>
#include <com/sun/star/accessibility/XAccessibleComponent.hpp>
#include <com/sun/star/accessibility/XAccessibleContext3.hpp>
#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <cppuhelper/implbase.hxx>
#include <unotools/resmgr.hxx>
#include <memory>
#include <mutex>
namespace vcl {
class Window; }
class SwCursorShell;
class SdrObject;
class SwPaM;
namespace accessibility {
class AccessibleShape;
}
inline constexpr OUString sAccessibleServiceName = u
"com.sun.star.accessibility.Accessible"_ustr;
class SwAccessibleContext :
public ::cppu::WeakImplHelper<
css::accessibility::XAccessible,
css::accessibility::XAccessibleContext,
css::accessibility::XAccessibleContext3,
css::accessibility::XAccessibleComponent,
css::accessibility::XAccessibleEventBroadcaster,
css::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 GetFrame.
friend class SwAccessibleSelectionHelper;
#if OSL_DEBUG_LEVEL >
0
friend class SwAccessibleMap;
#endif
protected:
mutable std::mutex m_Mutex;
private:
OUString m_sName;
// immutable outside constructor
// The parent if it has been retrieved. (protected by Mutex)
unotools::WeakReference< SwAccessibleContext > m_xWeakParent;
SwAccessibleMap *m_pMap;
// must be protected by solar mutex
/// note: the m_pMap is guaranteed to be valid until we hit the
/// dtor ~SwAccessibleContext, then m_wMap must be checked if it's still
/// alive, after locking SolarMutex (alternatively, Dispose clears m_pMap)
std::weak_ptr<SwAccessibleMap> m_wMap;
sal_uInt32 m_nClientId;
// client id in the AccessibleEventNotifier queue
sal_Int16 m_nRole;
// immutable outside constructor
// The current states (protected by mutex)
bool m_isShowingState :
1;
bool m_isEditableState :
1;
bool m_isOpaqueState :
1;
bool m_isDefuncState :
1;
// Are we currently disposing that object (protected by solar mutex)?
bool m_isDisposing :
1;
// #i85634# - boolean, indicating if the accessible context is
// in general registered at the accessible map.
bool m_isRegisteredAtAccessibleMap;
protected:
void SetName(
const OUString& rName ) { m_sName = rName; }
sal_Int16 GetRole()
const
{
return m_nRole;
}
//This flag is used to mark the object's selected state.
bool m_isSelectedInDoc;
void SetParent( SwAccessibleContext *pParent );
rtl::Reference<SwAccessibleContext> GetWeakParent()
const;
bool IsDisposing()
const {
return m_isDisposing; }
vcl::Window *GetWindow();
SwAccessibleMap *GetMap() {
return m_pMap; }
const SwAccessibleMap *GetMap()
const {
return m_pMap; }
/** convenience method to get the SwViewShell through accessibility map */
SwViewShell& GetShell()
{
return GetMap()->GetShell();
}
const SwViewShell& GetShell()
const
{
return GetMap()->GetShell();
}
/** convenience method to get SwCursorShell through accessibility map
* @returns SwCursorShell, or NULL if none is found */
SwCursorShell* GetCursorShell();
const SwCursorShell* GetCursorShell()
const;
// Notify all children that the visible area has changed.
// The SwFrame might belong to the current object or to any other child or
// grandchild.
void ChildrenScrolled(
const SwFrame *pFrame,
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 visible area
void ScrolledWithin(
const SwRect& rOldVisArea );
// The has been added while setting the visible area
void ScrolledIn();
// The context has to be removed while setting the visible area
void ScrolledOut(
const SwRect& rOldVisArea );
// Invalidate the states of all children of the specified SwFrame. The
// SwFrame might belong the current object or to any child or grandchild!
// #i27301# - use new type definition for <_nStates>
void InvalidateChildrenStates(
const SwFrame* _pFrame,
AccessibleStates _nStates );
// Dispose children of the specified SwFrame. The SwFrame might belong to
// the current object or to any other child or grandchild.
void DisposeChildren(
const SwFrame *pFrame,
bool bRecursive,
bool bCanSkipInvisible);
void DisposeShape(
const SdrObject *pObj,
::accessibility::AccessibleShape *pAccImpl );
void ScrolledInShape( ::accessibility::AccessibleShape *pAccImpl );
virtual void InvalidateContent_(
bool bVisibleDataFired );
virtual void InvalidateCursorPos_();
virtual void InvalidateFocus_();
public:
void FireAccessibleEvent(
const sal_Int16 nEventId,
const css::uno::Any& rOldValue,
const css::uno::Any& rNewValue, sal_Int32 nIndexHint = -
1);
protected:
// broadcast visual data event
void FireVisibleDataEvent();
// broadcast state change event
void FireStateChangedEvent( sal_Int64 nState,
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( sal_Int64& rStateSet );
bool IsEditableState();
/// @throws css::uno::RuntimeException
css::awt::Rectangle
getBoundsImpl(
bool bRelative);
// #i85634#
void NotRegisteredAtAccessibleMap()
{
m_isRegisteredAtAccessibleMap =
false;
}
void RemoveFrameFromAccessibleMap();
void ThrowIfDisposed();
virtual ~SwAccessibleContext() override;
// Return a reference to the parent.
rtl::Reference<SwAccessibleContext> getAccessibleParentImpl();
public:
SwAccessibleContext( std::shared_ptr<SwAccessibleMap>
const& pMap,
sal_Int16 nRole,
const SwFrame *pFrame );
// XAccessible
// Return the XAccessibleContext.
virtual css::uno::Reference< css::accessibility::XAccessibleContext> SAL_CALL
getAccessibleContext() override;
// XAccessibleContext
// Return the number of currently visible children.
virtual sal_Int64 SAL_CALL getAccessibleChildCount() override;
// Return the specified child or NULL if index is invalid.
virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
getAccessibleChild (sal_Int64 nIndex) override;
virtual css::uno::Sequence<css::uno::Reference< css::accessibility::XAccessible>> SAL_C
ALL
getAccessibleChildren() override;
// Return a reference to the parent.
virtual css::uno::Reference< css::accessibility::XAccessible> SAL_CALL
getAccessibleParent() override;
// Return this objects index among the parents children.
virtual sal_Int64 SAL_CALL
getAccessibleIndexInParent() override;
// Return this object's role.
virtual sal_Int16 SAL_CALL
getAccessibleRole() override;
// getAccessibleDescription() is abstract
// Return the object's current name.
virtual OUString SAL_CALL
getAccessibleName() override;
// Return NULL to indicate that an empty relation set.
virtual css::uno::Reference<
css::accessibility::XAccessibleRelationSet> SAL_CALL
getAccessibleRelationSet() override;
// Return the set of current states.
virtual sal_Int64 SAL_CALL getAccessibleStateSet() override;
/** Return the parents locale or throw exception if this object has no
parent yet/anymore. */
virtual css::lang::Locale SAL_CALL
getLocale() override;
// XAccessibleEventBroadcaster
virtual void SAL_CALL addAccessibleEventListener(
const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
virtual void SAL_CALL removeAccessibleEventListener(
const css::uno::Reference< css::accessibility::XAccessibleEventListener >& xListener ) override;
// XAccessibleComponent
virtual sal_Bool SAL_CALL containsPoint(
const css::awt::Point& aPoint ) override;
virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint(
const css::awt::Point& aPoint ) override;
virtual css::awt::Rectangle SAL_CALL getBounds() override;
virtual css::awt::Point SAL_CALL getLocation() override;
virtual css::awt::Point SAL_CALL getLocationOnScreen() override;
virtual css::awt::Size SAL_CALL getSize() override;
virtual void SAL_CALL grabFocus() override;
virtual sal_Int32 SAL_CALL getForeground() override;
virtual sal_Int32 SAL_CALL getBackground() override;
// XServiceInfo
// getImplementationName() and getSupportedServiceNames are abstract
/** Return whether the specified service is supported by this class. */
virtual sal_Bool SAL_CALL
supportsService (const OUString& sServiceName) override;
// thread safe C++ interface
// The object is not visible any longer and should be destroyed
virtual void Dispose(bool bRecursive, bool bCanSkipInvisible = true);
// The child object is not visible any longer and should be destroyed
virtual void DisposeChild(const sw::access::SwAccessibleChild& rFrameOrObj, bool bRecursive, bool bCanSkipInvisible);
// The object has been moved by the layout
virtual void InvalidatePosOrSize( const SwRect& rFrame );
// The child object has been moved by the layout
virtual void InvalidateChildPosOrSize( const sw::access::SwAccessibleChild& rFrameOrObj,
const SwRect& rFrame );
// The content may have changed (but it hasn't to have 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( AccessibleStates _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
vcl::Window* GetAdditionalAccessibleChild( const sal_Int32 nIndex );
// #i88070# - get all additional accessible children
std::vector<vcl::Window*> GetAdditionalAccessibleChildren();
const OUString& GetName() const { return m_sName; }
virtual bool HasCursor(); // required by map to remember that object
bool Select( SwPaM *pPaM, SdrObject *pObj, bool bAdd );
bool Select( SwPaM& rPaM )
{
return Select( &rPaM, nullptr, false );
}
bool Select( SdrObject *pObj, bool bAdd )
{
return Select( nullptr, pObj, bAdd );
}
//This method is used to update the selected state and fire the selected state changed event.
virtual bool SetSelectedState(bool bSelected);
bool IsSelectedInDoc() const { return m_isSelectedInDoc; }
bool IsDisposed() const;
static OUString GetResource(TranslateId pResId,
const OUString *pArg1 = nullptr,
const OUString *pArg2 = nullptr);
};
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