/* -*- 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 ACCESSIBILITY_EXT_ACCESSIBLEGRIDCONTROLBASE_HXX #define ACCESSIBILITY_EXT_ACCESSIBLEGRIDCONTROLBASE_HXX #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include // ============================================================================ class Window; namespace utl { class AccessibleStateSetHelper; } // ============================================================================ namespace accessibility { // ============================================================================ // ============================================================================ typedef ::cppu::WeakAggComponentImplHelper4< ::com::sun::star::accessibility::XAccessibleContext, ::com::sun::star::accessibility::XAccessibleComponent, ::com::sun::star::accessibility::XAccessibleEventBroadcaster, ::com::sun::star::lang::XServiceInfo > AccessibleGridControlImplHelper; /** The GridControl accessible objects inherit from this base class. It implements basic functionality for various Accessibility interfaces and the event broadcaster and contains the ::osl::Mutex. */ class AccessibleGridControlBase : public ::comphelper::OBaseMutex, public AccessibleGridControlImplHelper { public: /** Constructor sets specified name and description. @param rxParent XAccessible interface of the parent object. @param rTable The Table control. @param eNameText The constant for the name text. @param eDescrText The constant for the description text. */ AccessibleGridControlBase( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >& rxParent, ::svt::table::IAccessibleTable& rTable, ::svt::table::AccessibleTableControlObjType eObjType ); protected: virtual ~AccessibleGridControlBase(); /** Commits DeFunc event to listeners and cleans up members. */ virtual void SAL_CALL disposing(); public: // XAccessibleContext ----------------------------------------------------- /** @return A reference to the parent accessible object. */ virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleParent() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The index of this object among the parent's children. */ virtual sal_Int32 SAL_CALL getAccessibleIndexInParent() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The description of this object. */ virtual OUString SAL_CALL getAccessibleDescription() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The name of this object. */ virtual OUString SAL_CALL getAccessibleName() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The relation set (the GridControl does not have one). */ virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet() 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() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The parent's locale. */ virtual ::com::sun::star::lang::Locale SAL_CALL getLocale() throw ( ::com::sun::star::accessibility::IllegalAccessibleComponentStateException, ::com::sun::star::uno::RuntimeException ); /** @return The role of this object. Panel, ROWHEADER, COLUMNHEADER, TABLE, TABLE_CELL are supported. */ virtual sal_Int16 SAL_CALL getAccessibleRole() throw ( ::com::sun::star::uno::RuntimeException ); /* Derived classes have to implement: - getAccessibleChildCount, - getAccessibleChild, - getAccessibleRole. Derived classes may overwrite getAccessibleIndexInParent to increase performance. */ // XAccessibleComponent --------------------------------------------------- /** @return , if the point lies within the bounding box of this object. */ virtual sal_Bool SAL_CALL containsPoint( const ::com::sun::star::awt::Point& rPoint ) throw ( ::com::sun::star::uno::RuntimeException ); /** @return The bounding box of this object. */ virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The upper left corner of the bounding box relative to the parent. */ virtual ::com::sun::star::awt::Point SAL_CALL getLocation() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The upper left corner of the bounding box in screen coordinates. */ virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The size of the bounding box. */ virtual ::com::sun::star::awt::Size SAL_CALL getSize() throw ( ::com::sun::star::uno::RuntimeException ); /** @return , if the object is showing. */ virtual sal_Bool SAL_CALL isShowing() throw ( ::com::sun::star::uno::RuntimeException ); /** @return , if the object is visible. */ virtual sal_Bool SAL_CALL isVisible() throw ( ::com::sun::star::uno::RuntimeException ); /** @return , if the object can accept the focus. */ virtual sal_Bool SAL_CALL isFocusTraversable() 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); /* Derived classes have to implement: - getAccessibleAt, - grabFocus, - getAccessibleKeyBinding. */ /** @return No key bindings supported by default. */ virtual ::com::sun::star::uno::Any SAL_CALL getAccessibleKeyBinding() throw ( ::com::sun::star::uno::RuntimeException ); /** @return The accessible child rendered under the given point. */ virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const ::com::sun::star::awt::Point& rPoint ) throw ( ::com::sun::star::uno::RuntimeException ); // XAccessibleEventBroadcaster -------------------------------------------- /** Adds a new event listener */ virtual void SAL_CALL addAccessibleEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener>& rxListener ) throw ( ::com::sun::star::uno::RuntimeException ); /** Removes an event listener. */ virtual void SAL_CALL removeAccessibleEventListener( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleEventListener>& rxListener ) throw ( ::com::sun::star::uno::RuntimeException ); // XTypeProvider ---------------------------------------------------------- /** @return An unique implementation ID. */ virtual ::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() throw ( ::com::sun::star::uno::RuntimeException ); // XServiceInfo ----------------------------------------------------------- /** @return Whether the specified service is supported by this class. */ virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) throw ( ::com::sun::star::uno::RuntimeException ); /** @return A list of all supported services. */ virtual ::com::sun::star::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() throw ( ::com::sun::star::uno::RuntimeException ); /* Derived classes have to implement: - getImplementationName. */ // helper methods --------------------------------------------------------- /** @return The GridControl object type. */ inline ::svt::table::AccessibleTableControlObjType getType() const; /** Commits an event to all listeners. */ void commitEvent( sal_Int16 nEventId, const ::com::sun::star::uno::Any& rNewValue, const ::com::sun::star::uno::Any& rOldValue ); /** @return , if the object is not disposed or disposing. */ sal_Bool isAlive() const; protected: // internal virtual methods ----------------------------------------------- /** Determines whether the Grid control is really showing inside of its parent accessible window. Derived classes may implement different behaviour. @attention This method requires locked mutex's and a living object. @return , if the object is really showing. */ virtual sal_Bool implIsShowing(); /** Derived classes return the bounding box relative to the parent window. @attention This method requires locked mutex's and a living object. @return The bounding box (VCL rect.) relative to the parent window. */ virtual Rectangle implGetBoundingBox() = 0; ///** Derived classes return the bounding box in screen coordinates. // @attention This method requires locked mutex's and a living object. // @return The bounding box (VCL rect.) in screen coordinates. */ virtual Rectangle implGetBoundingBoxOnScreen() = 0; /** Creates a new AccessibleStateSetHelper and fills it with states of the current object. This method calls FillStateSet at the GridControl which fills it with more states depending on the object type. Derived classes may overwrite this method and add more states. @attention This method requires locked mutex's. @return A filled AccessibleStateSetHelper. */ virtual ::utl::AccessibleStateSetHelper* implCreateStateSetHelper(); // internal helper methods ------------------------------------------------ /** @throws DisposedException If the object is not alive. */ void ensureIsAlive() const throw ( ::com::sun::star::lang::DisposedException ); /** @return The ::osl::Mutex member provided by the class OBaseMutex. */ inline ::osl::Mutex& getOslMutex(); /** @return Pointer to the global ::osl::Mutex. */ static inline ::osl::Mutex* getOslGlobalMutex(); /** Changes the name of the object (flat assignment, no notify). @attention This method requires a locked mutex. */ inline void implSetName( const OUString& rName ); /** Changes the description of the object (flat assignment, no notify). @attention This method requires a locked mutex. */ inline void implSetDescription( const OUString& rDescription ); /** Locks all mutex's and calculates the bounding box relative to the parent window. @return The bounding box (VCL rect.) relative to the parent object. */ Rectangle getBoundingBox() throw ( ::com::sun::star::lang::DisposedException ); ///** Locks all mutex's and calculates the bounding box in screen // coordinates. // @return The bounding box (VCL rect.) in screen coordinates. */ Rectangle getBoundingBoxOnScreen() throw ( ::com::sun::star::lang::DisposedException ); ::comphelper::AccessibleEventNotifier::TClientId getClientId() const { return m_aClientId; } void setClientId(::comphelper::AccessibleEventNotifier::TClientId _aNewClientId) { m_aClientId = _aNewClientId; } public: // public versions of internal helper methods, with access control struct TC_AccessControl { friend class TC_SolarMethodGuard; private: TC_AccessControl() { } }; inline ::osl::Mutex& getMutex( const TC_AccessControl& ) { return getOslMutex(); } inline void ensureIsAlive( const TC_AccessControl& ) { ensureIsAlive(); } protected: // members ---------------------------------------------------------------- /** The parent accessible object. */ ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > m_xParent; /** The SVT Table control. */ ::svt::table::IAccessibleTable& m_aTable; /** The type of this object (for names, descriptions, state sets, ...). */ ::svt::table::AccessibleTableControlObjType m_eObjType; private: /** Localized name. */ OUString m_aName; /** Localized description text. */ OUString m_aDescription; ::comphelper::AccessibleEventNotifier::TClientId m_aClientId; }; // ============================================================================ // a version of AccessibleGridControlBase which implements not only the XAccessibleContext, // but also the XAccessible typedef ::cppu::ImplHelper1 < ::com::sun::star::accessibility::XAccessible > GridControlAccessibleElement_Base; class GridControlAccessibleElement :public AccessibleGridControlBase ,public GridControlAccessibleElement_Base { protected: /** Constructor sets specified name and description. @param rxParent XAccessible interface of the parent object. @param rTable The Table control. @param eNameText The constant for the name text. @param eDescrText The constant for the description text. */ GridControlAccessibleElement( const ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible >& rxParent, ::svt::table::IAccessibleTable& rTable, ::svt::table::AccessibleTableControlObjType eObjType ); public: // XInterface DECLARE_XINTERFACE( ) // XTypeProvider DECLARE_XTYPEPROVIDER( ) protected: virtual ~GridControlAccessibleElement(); protected: // XAccessible ------------------------------------------------------------ /** @return The XAccessibleContext interface of this object. */ virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext() throw ( ::com::sun::star::uno::RuntimeException ); private: GridControlAccessibleElement(); // never implemented GridControlAccessibleElement( const GridControlAccessibleElement& ); // never implemented GridControlAccessibleElement& operator=( const GridControlAccessibleElement& ); // never implemented }; // ============================================================================ // a helper class for protecting methods which need to lock the solar mutex in addition to the own mutex typedef ::osl::MutexGuard OslMutexGuard; class TC_SolarMethodGuard : public SolarMutexGuard, public OslMutexGuard { public: inline TC_SolarMethodGuard( AccessibleGridControlBase& _rOwner, bool _bEnsureAlive = true ) : SolarMutexGuard(), OslMutexGuard( _rOwner.getMutex( AccessibleGridControlBase::TC_AccessControl() ) ) { if ( _bEnsureAlive ) _rOwner.ensureIsAlive( AccessibleGridControlBase::TC_AccessControl() ); } }; // inlines -------------------------------------------------------------------- inline ::svt::table::AccessibleTableControlObjType AccessibleGridControlBase::getType() const { return m_eObjType; } inline ::osl::Mutex& AccessibleGridControlBase::getOslMutex() { return m_aMutex; } inline ::osl::Mutex* AccessibleGridControlBase::getOslGlobalMutex() { return ::osl::Mutex::getGlobalMutex(); } inline void AccessibleGridControlBase::implSetName( const OUString& rName ) { m_aName = rName; } inline void AccessibleGridControlBase::implSetDescription( const OUString& rDescription ) { m_aDescription = rDescription; } // ============================================================================ } // namespace accessibility // ============================================================================ #endif // ACCESSIBILITY_EXT_ACCESSIBILEGRIDCONTROLBASE_HXX /* vim:set shiftwidth=4 softtabstop=4 expandtab: */