372 lines
14 KiB
C++
372 lines
14 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef SD_ACCESSIBILITY_ACCESSIBLE_DOCUMENT_VIEW_BASE_HXX
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#define SD_ACCESSIBILITY_ACCESSIBLE_DOCUMENT_VIEW_BASE_HXX
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#include <editeng/AccessibleContextBase.hxx>
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#include <editeng/AccessibleComponentBase.hxx>
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#include <editeng/AccessibleSelectionBase.hxx>
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#include "AccessibleViewForwarder.hxx"
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#include "AccessiblePageShape.hxx"
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#include <svx/ChildrenManager.hxx>
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#include <com/sun/star/frame/XModel.hpp>
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#include <com/sun/star/awt/XWindowListener.hpp>
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#include <com/sun/star/awt/XFocusListener.hpp>
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#include <com/sun/star/beans/XPropertyChangeListener.hpp>
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#include <com/sun/star/accessibility/XAccessible.hpp>
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#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
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#include <tools/link.hxx>
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namespace sd {
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class ViewShell;
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class Window;
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}
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class VclSimpleEvent;
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namespace accessibility {
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/** Base class for the various document views of the Draw and
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Impress applications.
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<p>The different view modes of the Draw and Impress applications
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are made accessible by derived classes. When the view mode is
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changed than the object representing the document view is
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disposed and replaced by a new instance of the then appropriate
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derived class.</p>
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<p>This base class also manages an optionally active accessible OLE
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object. If you overwrite the <member>getAccessibleChildCount</member>
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and <member>getAccessibleChild</member> methods then make sure to first
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call the corresponding method of this class and adapt your child count
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and indices accordingly. Only one active OLE object is allowed at a
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time. This class does not listen for disposing calls at the moment
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because it does not use the accessible OLE object directly and trusts on
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getting informed through VCL window events.</p>
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<p>This class implements three kinds of listeners:
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<ol><li>The property change listener is not used directly but exists as
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convenience for derived classes. May be moved to those classes
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instead.</li>
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<li>As window listener it waits for changes of the window geometry and
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forwards those as view forwarder changes.</li>
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<li>As focus listener it keeps track of the focus to give this class and
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derived classes the oportunity to set and remove the focus to/from
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shapes.</li>
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</ol>
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</p>
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*/
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class AccessibleDocumentViewBase
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: public AccessibleContextBase,
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public AccessibleComponentBase,
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public AccessibleSelectionBase,
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public IAccessibleViewForwarderListener,
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public ::com::sun::star::beans::XPropertyChangeListener,
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public ::com::sun::star::awt::XWindowListener,
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public ::com::sun::star::awt::XFocusListener
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{
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public:
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//===== internal ========================================================
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/** Create a new object. Note that the caller has to call the
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Init method directly after this constructor has finished.
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@param pSdWindow
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The window whose content is to be made accessible.
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@param pViewShell
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The view shell associated with the given window.
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@param rxController
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The controller from which to get the model.
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@param rxParent
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The accessible parent of the new object. Note that this parent does
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not necessarily correspond with the parent of the given window.
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*/
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AccessibleDocumentViewBase (
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::sd::Window* pSdWindow,
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::sd::ViewShell* pViewShell,
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const ::com::sun::star::uno::Reference<
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::com::sun::star::frame::XController>& rxController,
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const ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessible>& rxParent);
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virtual ~AccessibleDocumentViewBase (void);
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/** Initialize a new object. Call this method directly after creating a
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new object. It finished the initialization begun in the constructor
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but which needs a fully created object.
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*/
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virtual void Init (void);
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/** Define callback for listening to window child events of VCL.
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Listen for creation or destruction of OLE objects.
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*/
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DECL_LINK (WindowChildEventListener, VclSimpleEvent*);
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//===== IAccessibleViewForwarderListener ================================
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/** A view forwarder change is signalled for instance when any of the
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window events is recieved. Thus, instead of overloading the four
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windowResized... methods it will be sufficient in most cases just to
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overload this method.
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*/
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virtual void ViewForwarderChanged (ChangeType aChangeType,
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const IAccessibleViewForwarder* pViewForwarder);
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//===== XAccessibleContext ==============================================
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virtual ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessible> SAL_CALL
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getAccessibleParent (void)
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throw (::com::sun::star::uno::RuntimeException);
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/** This implementation returns either 1 or 0 depending on whether there
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is an active accessible OLE object or not.
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*/
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virtual sal_Int32 SAL_CALL
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getAccessibleChildCount (void)
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throw (::com::sun::star::uno::RuntimeException);
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/** This implementation either returns the active accessible OLE object
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if it exists and the given index is 0 or throws an exception.
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*/
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virtual ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessible> SAL_CALL
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getAccessibleChild (sal_Int32 nIndex)
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throw (::com::sun::star::uno::RuntimeException,
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::com::sun::star::lang::IndexOutOfBoundsException);
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//===== XAccessibleComponent ============================================
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virtual ::com::sun::star::uno::Reference<
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::com::sun::star::accessibility::XAccessible > SAL_CALL
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getAccessibleAtPoint (const ::com::sun::star::awt::Point& aPoint)
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throw (::com::sun::star::uno::RuntimeException);
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virtual ::com::sun::star::awt::Rectangle SAL_CALL getBounds (void)
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throw (::com::sun::star::uno::RuntimeException);
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virtual ::com::sun::star::awt::Point SAL_CALL getLocation (void)
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throw (::com::sun::star::uno::RuntimeException);
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virtual ::com::sun::star::awt::Point SAL_CALL getLocationOnScreen (void)
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throw (::com::sun::star::uno::RuntimeException);
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virtual ::com::sun::star::awt::Size SAL_CALL getSize (void)
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throw (::com::sun::star::uno::RuntimeException);
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//===== XInterface ======================================================
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virtual com::sun::star::uno::Any SAL_CALL
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queryInterface (const com::sun::star::uno::Type & rType)
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throw (::com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL
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acquire (void)
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throw ();
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virtual void SAL_CALL
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release (void)
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throw ();
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//===== XServiceInfo ====================================================
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/** Returns an identifier for the implementation of this object.
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*/
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virtual ::rtl::OUString SAL_CALL
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getImplementationName (void)
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throw (::com::sun::star::uno::RuntimeException);
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virtual ::com::sun::star::uno::Sequence< ::rtl::OUString> SAL_CALL
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getSupportedServiceNames (void)
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throw (::com::sun::star::uno::RuntimeException);
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//===== XTypeProvider ===================================================
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virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type> SAL_CALL
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getTypes (void)
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throw (::com::sun::star::uno::RuntimeException);
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//===== lang::XEventListener ============================================
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virtual void SAL_CALL
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disposing (const ::com::sun::star::lang::EventObject& rEventObject)
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throw (::com::sun::star::uno::RuntimeException);
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//===== XPropertyChangeListener =========================================
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virtual void SAL_CALL
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propertyChange (const ::com::sun::star::beans::PropertyChangeEvent& rEventObject)
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throw (::com::sun::star::uno::RuntimeException);
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//===== XWindowListener =================================================
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virtual void SAL_CALL
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windowResized (const ::com::sun::star::awt::WindowEvent& e)
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throw (::com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL
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windowMoved (const ::com::sun::star::awt::WindowEvent& e)
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throw (::com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL
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windowShown (const ::com::sun::star::lang::EventObject& e)
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throw (::com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL
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windowHidden (const ::com::sun::star::lang::EventObject& e)
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throw (::com::sun::star::uno::RuntimeException);
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//===== XFocusListener =================================================
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virtual void SAL_CALL focusGained (const ::com::sun::star::awt::FocusEvent& e)
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throw (::com::sun::star::uno::RuntimeException);
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virtual void SAL_CALL focusLost (const ::com::sun::star::awt::FocusEvent& e)
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throw (::com::sun::star::uno::RuntimeException);
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private:
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// return the member maMutex;
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virtual ::osl::Mutex&
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implGetMutex();
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// return ourself as context in default case
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virtual ::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessibleContext >
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implGetAccessibleContext()
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throw ( ::com::sun::star::uno::RuntimeException );
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// return sal_False in default case
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virtual sal_Bool
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implIsSelected( sal_Int32 nAccessibleChildIndex )
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throw (::com::sun::star::uno::RuntimeException);
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// return nothing in default case
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virtual void
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implSelect( sal_Int32 nAccessibleChildIndex, sal_Bool bSelect )
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throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException);
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protected:
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/// The core window that is made accessible.
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::sd::Window* mpWindow;
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/// The API window that is made accessible.
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::com::sun::star::uno::Reference< ::com::sun::star::awt::XWindow>
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mxWindow;
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/// The controller of the window in which this view is displayed.
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::com::sun::star::uno::Reference< ::com::sun::star::frame::XController>
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mxController;
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/// Model of the document.
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::com::sun::star::uno::Reference < ::com::sun::star::frame::XModel>
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mxModel;
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// Bundle of information that is passed down the shape tree.
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AccessibleShapeTreeInfo maShapeTreeInfo;
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/// The view forwarder passed to the children manager.
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AccessibleViewForwarder maViewForwarder;
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/** Accessible OLE object. Set or removed by the
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<member>SetAccessibleOLEObject</member> method.
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*/
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::com::sun::star::uno::Reference <
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::com::sun::star::accessibility::XAccessible>
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mxAccessibleOLEObject;
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Link maWindowLink;
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// This method is called from the component helper base class while
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// disposing.
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virtual void SAL_CALL disposing (void);
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/** Create a name string. The current name is not modified and,
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therefore, no events are send. This method is usually called once
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by the <member>getAccessibleName</member> method of the base class.
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@return
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A name string.
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*/
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virtual ::rtl::OUString
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CreateAccessibleName ()
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throw (::com::sun::star::uno::RuntimeException);
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/** Create a description string. The current description is not
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modified and, therefore, no events are send. This method is usually
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called once by the <member>getAccessibleDescription</member> method
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of the base class.
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@return
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A description string.
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*/
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virtual ::rtl::OUString
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CreateAccessibleDescription ()
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throw (::com::sun::star::uno::RuntimeException);
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/** This method is called when (after) the frame containing this
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document has been activated. Can be used to send FOCUSED state
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changes for the currently selected element.
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Note: Currently used as a substitute for FocusGained. Should be
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renamed in the future.
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*/
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virtual void Activated (void);
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/** This method is called when (before or after?) the frame containing
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this document has been deactivated. Can be used to send FOCUSED
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state changes for the currently selected element.
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Note: Currently used as a substitute for FocusLost. Should be
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renamed in the future.
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*/
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virtual void Deactivated (void);
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/** Set or remove the currently active accessible OLE object.
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@param xOLEObject
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If this is a valid reference then a child event is send that
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informs the listeners of a new child. If there has already been
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an active accessible OLE object then this is removed first and
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appropriate events are send.
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If this is an empty reference then the currently active
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accessible OLE object (if there is one) is removed.
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*/
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virtual void SetAccessibleOLEObject (
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const ::com::sun::star::uno::Reference <
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::com::sun::star::accessibility::XAccessible>& xOLEObject);
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virtual void impl_dispose (void);
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};
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} // end of namespace accessibility
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#endif
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