/* -*- 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 #include #include #include #include #include #include #include #include namespace vcl { class Window; } class SwCursorShell; class SdrObject; class SwPaM; namespace utl { class AccessibleStateSetHelper; } namespace accessibility { class AccessibleShape; } inline constexpr OUStringLiteral sAccessibleServiceName = u"com.sun.star.accessibility.Accessible"; 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. This is always an // SwAccessibleContext. (protected by Mutex) css::uno::WeakReference < css::accessibility::XAccessible > 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 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; void InitStates(); 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 ); css::uno::Reference< css::accessibility::XAccessible> 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( css::accessibility::AccessibleEventObject& rEvent ); protected: // broadcast visual data event void FireVisibleDataEvent(); // broadcast state change event void FireStateChangedEvent( sal_Int16 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( ::utl::AccessibleStateSetHelper& 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. css::uno::Reference< css::accessibility::XAccessible> getAccessibleParentImpl(); public: SwAccessibleContext( std::shared_ptr 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_Int32 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_Int32 nIndex) override; virtual css::uno::Sequence> SAL_CALL 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_Int32 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 css::uno::Reference< css::accessibility::XAccessibleStateSet> 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 void GetAdditionalAccessibleChildren( std::vector< vcl::Window* >* pChildren ); 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; } static OUString GetResource(TranslateId pResId, const OUString *pArg1 = nullptr, const OUString *pArg2 = nullptr); }; /* vim:set shiftwidth=4 softtabstop=4 expandtab: */