1107 lines
38 KiB
C++
1107 lines
38 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <cassert>
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#include "ChildrenManagerImpl.hxx"
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#include <svx/ShapeTypeHandler.hxx>
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#include <svx/AccessibleShapeInfo.hxx>
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#include <vcl/svapp.hxx>
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#include <com/sun/star/accessibility/AccessibleStateType.hpp>
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#include <com/sun/star/view/XSelectionSupplier.hpp>
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#include <com/sun/star/container/XChild.hpp>
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#include <comphelper/uno3.hxx>
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#include <rtl/ustring.hxx>
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#include <tools/debug.hxx>
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#include <svx/SvxShapeTypes.hxx>
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#include <vcl/window.hxx>
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::accessibility;
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using ::com::sun::star::uno::Reference;
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namespace accessibility {
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namespace
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{
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void adjustIndexInParentOfShapes(ChildDescriptorListType& _rList)
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{
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ChildDescriptorListType::const_iterator aEnd = _rList.end();
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sal_Int32 i=0;
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for ( ChildDescriptorListType::iterator aIter = _rList.begin(); aIter != aEnd; ++aIter,++i)
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aIter->setIndexAtAccessibleShape(i);
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}
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}
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// AccessibleChildrenManager
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ChildrenManagerImpl::ChildrenManagerImpl (
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const uno::Reference<XAccessible>& rxParent,
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const uno::Reference<drawing::XShapes>& rxShapeList,
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const AccessibleShapeTreeInfo& rShapeTreeInfo,
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AccessibleContextBase& rContext)
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: ::cppu::WeakComponentImplHelper<
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css::document::XEventListener,
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css::view::XSelectionChangeListener>(maMutex),
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mxShapeList (rxShapeList),
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mxParent (rxParent),
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maShapeTreeInfo (rShapeTreeInfo),
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mrContext (rContext),
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mnNewNameIndex(1),
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mpFocusedShape(nullptr)
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{
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}
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ChildrenManagerImpl::~ChildrenManagerImpl()
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{
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DBG_ASSERT (rBHelper.bDisposed || rBHelper.bInDispose,
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"~AccessibleDrawDocumentView: object has not been disposed");
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}
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void ChildrenManagerImpl::Init()
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{
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// Register as view::XSelectionChangeListener.
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Reference<frame::XController> xController(maShapeTreeInfo.GetController());
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Reference<view::XSelectionSupplier> xSelectionSupplier (
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xController, uno::UNO_QUERY);
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if (xSelectionSupplier.is())
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{
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xController->addEventListener(
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static_cast<document::XEventListener*>(this));
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xSelectionSupplier->addSelectionChangeListener (
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static_cast<view::XSelectionChangeListener*>(this));
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}
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// Register at model as document::XEventListener.
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if (maShapeTreeInfo.GetModelBroadcaster().is())
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maShapeTreeInfo.GetModelBroadcaster()->addEventListener (
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static_cast<document::XEventListener*>(this));
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}
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long ChildrenManagerImpl::GetChildCount() const throw ()
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{
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return maVisibleChildren.size();
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}
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css::uno::Reference<css::drawing::XShape> ChildrenManagerImpl::GetChildShape(long nIndex)
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throw (css::uno::RuntimeException,
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css::lang::IndexOutOfBoundsException)
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{
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uno::Reference<XAccessible> xAcc = GetChild(nIndex);
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ChildDescriptorListType::const_iterator aEnd = maVisibleChildren.end();
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for (ChildDescriptorListType::iterator I = maVisibleChildren.begin(); I != aEnd; ++I)
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{
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if (I->mxAccessibleShape == xAcc)
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return I->mxShape;
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}
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return uno::Reference< drawing::XShape > ();
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}
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/** Return the requested accessible child object. Create it if it is not
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yet in the cache.
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*/
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uno::Reference<XAccessible>
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ChildrenManagerImpl::GetChild (long nIndex)
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throw (css::uno::RuntimeException,
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css::lang::IndexOutOfBoundsException)
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{
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// Check whether the given index is valid.
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if (nIndex < 0 || (unsigned long)nIndex >= maVisibleChildren.size())
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throw lang::IndexOutOfBoundsException (
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"no accessible child with index " + OUString::number(nIndex),
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mxParent);
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return GetChild (maVisibleChildren[nIndex],nIndex);
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}
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/** Return the requested accessible child object. Create it if it is not
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yet in the cache.
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*/
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uno::Reference<XAccessible>
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ChildrenManagerImpl::GetChild (ChildDescriptor& rChildDescriptor,sal_Int32 _nIndex)
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throw (css::uno::RuntimeException)
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{
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if ( ! rChildDescriptor.mxAccessibleShape.is())
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{
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SolarMutexGuard g;
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// Make sure that the requested accessible object has not been
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// created while locking the global mutex.
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if ( ! rChildDescriptor.mxAccessibleShape.is())
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{
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AccessibleShapeInfo aShapeInfo(
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rChildDescriptor.mxShape,
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mxParent,
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this);
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// Create accessible object that corresponds to the descriptor's
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// shape.
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rtl::Reference<AccessibleShape> pShape(
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ShapeTypeHandler::Instance().CreateAccessibleObject (
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aShapeInfo,
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maShapeTreeInfo));
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rChildDescriptor.mxAccessibleShape.set(
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static_cast<uno::XWeak*>(pShape.get()),
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uno::UNO_QUERY);
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if ( pShape.is() )
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{
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pShape->Init();
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pShape->setIndexInParent(_nIndex);
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}
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}
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}
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return rChildDescriptor.mxAccessibleShape;
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}
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uno::Reference<XAccessible>
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ChildrenManagerImpl::GetChild (const uno::Reference<drawing::XShape>& xShape)
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throw (uno::RuntimeException)
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{
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ChildDescriptorListType::const_iterator aEnd = maVisibleChildren.end();
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for (ChildDescriptorListType::iterator I = maVisibleChildren.begin(); I != aEnd; ++I)
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{
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if ( I->mxShape.get() == xShape.get() )
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return I->mxAccessibleShape;
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}
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return uno::Reference<XAccessible> ();
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}
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/** Find all shapes among the specified shapes that lie fully or partially
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inside the visible area. Put those shapes into the cleared cache. The
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corresponding accessible objects will be created on demand.
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At the moment, first all accessible objects are removed from the cache
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and the appropriate listeners are informed of this. Next, the list is
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created again. This should be optimized in the future to not remove and
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create objects that will be in the list before and after the update
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method.
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*/
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void ChildrenManagerImpl::Update (bool bCreateNewObjectsOnDemand)
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{
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if (maShapeTreeInfo.GetViewForwarder() == nullptr)
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return;
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Rectangle aVisibleArea = maShapeTreeInfo.GetViewForwarder()->GetVisibleArea();
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// 1. Create a local list of visible shapes.
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ChildDescriptorListType aChildList;
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CreateListOfVisibleShapes (aChildList);
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// 2. Merge the information that is already known about the visible
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// shapes from the current list into the new list.
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MergeAccessibilityInformation (aChildList);
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// 3. Replace the current list of visible shapes with the new one. Do
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// the same with the visible area.
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{
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SolarMutexGuard g;
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adjustIndexInParentOfShapes(aChildList);
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// Use swap to copy the contents of the new list in constant time.
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maVisibleChildren.swap (aChildList);
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// aChildList now contains all the old children, while maVisibleChildren
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// contains all the current children
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// 4. Find all shapes in the old list that are not in the current list,
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// send appropriate events and remove the accessible shape.
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// Do this *after* we have set our new list of children, because
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// removing a child may cause
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// ChildDescriptor::disposeAccessibleObject -->
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// AccessibleContextBase::CommitChange -->
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// AtkListener::notifyEvent ->
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// AtkListener::handleChildRemoved ->
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// AtkListener::updateChildList
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// AccessibleDrawDocumentView::getAccessibleChildCount ->
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// ChildrenManagerImpl::GetChildCount ->
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// maVisibleChildren.size()
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// to be fired, and so the operations will take place on
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// the list we are trying to replace
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RemoveNonVisibleChildren (maVisibleChildren, aChildList);
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aChildList.clear();
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maVisibleArea = aVisibleArea;
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}
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// 5. If the visible area has changed then send events that signal a
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// change of their bounding boxes for all shapes that are members of
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// both the current and the new list of visible shapes.
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if (maVisibleArea != aVisibleArea)
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SendVisibleAreaEvents (maVisibleChildren);
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// 6. If children have to be created immediately and not on demand then
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// create the missing accessible objects now.
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if (!bCreateNewObjectsOnDemand)
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{
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//operate on a copy of the list and restore it afterwards to guard
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//against the pathological case where maVisibleChildren gets modified
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//by other calls to this object while CreateAccessibilityObjects
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//executes which can happen when java is disabled and the "enable-java"
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//dialog appears during the instantiation of the linguistic components
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//triggered by the creation of shapes belonging to the a11y objects
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//
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//i.e. launch start-center, launch impress with java disabled and
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//a java-using linguistic component installed
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maVisibleChildren.swap(aChildList);
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CreateAccessibilityObjects(aChildList);
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maVisibleChildren.swap(aChildList);
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}
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}
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void ChildrenManagerImpl::CreateListOfVisibleShapes (
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ChildDescriptorListType& raDescriptorList)
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{
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SolarMutexGuard g;
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OSL_ASSERT (maShapeTreeInfo.GetViewForwarder() != nullptr);
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Rectangle aVisibleArea = maShapeTreeInfo.GetViewForwarder()->GetVisibleArea();
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// Add the visible shapes for which the accessible objects already exist.
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AccessibleShapeList::const_iterator aEnd = maAccessibleShapes.end();
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for (AccessibleShapeList::iterator I=maAccessibleShapes.begin(); I != aEnd; ++I)
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{
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if (I->is())
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{
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uno::Reference<XAccessibleComponent> xComponent (
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(*I)->getAccessibleContext(), uno::UNO_QUERY);
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if (xComponent.is())
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{
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// The bounding box of the object already is clipped to the
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// visible area. The object is therefore visible if the
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// bounding box has non-zero extensions.
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awt::Rectangle aPixelBBox (xComponent->getBounds());
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if ((aPixelBBox.Width > 0) && (aPixelBBox.Height > 0))
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raDescriptorList.push_back (ChildDescriptor (*I));
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}
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}
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}
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// Add the visible shapes for which only the XShapes exist.
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uno::Reference<container::XIndexAccess> xShapeAccess (mxShapeList, uno::UNO_QUERY);
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if (xShapeAccess.is())
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{
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sal_Int32 nShapeCount = xShapeAccess->getCount();
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raDescriptorList.reserve( nShapeCount );
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awt::Point aPos;
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awt::Size aSize;
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Rectangle aBoundingBox;
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uno::Reference<drawing::XShape> xShape;
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for (sal_Int32 i=0; i<nShapeCount; ++i)
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{
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xShapeAccess->getByIndex(i) >>= xShape;
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aPos = xShape->getPosition();
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aSize = xShape->getSize();
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aBoundingBox.Left() = aPos.X;
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aBoundingBox.Top() = aPos.Y;
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aBoundingBox.Right() = aPos.X + aSize.Width;
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aBoundingBox.Bottom() = aPos.Y + aSize.Height;
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// Insert shape if it is visible, i.e. its bounding box overlaps
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// the visible area.
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if ( aBoundingBox.IsOver (aVisibleArea) )
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raDescriptorList.push_back (ChildDescriptor (xShape));
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}
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}
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}
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void ChildrenManagerImpl::RemoveNonVisibleChildren (
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const ChildDescriptorListType& rNewChildList,
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ChildDescriptorListType& rOldChildList)
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{
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// Iterate over list of formerly visible children and remove those that
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// are not visible anymore, i.e. member of the new list of visible
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// children.
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ChildDescriptorListType::const_iterator aEnd = rOldChildList.end();
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for (ChildDescriptorListType::iterator I=rOldChildList.begin(); I != aEnd; ++I)
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{
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if (::std::find(rNewChildList.begin(), rNewChildList.end(), *I) == rNewChildList.end())
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{
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// The child is disposed when there is a UNO shape from which
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// the accessible shape can be created when the shape becomes
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// visible again. When there is no such UNO shape then simply
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// reset the descriptor but keep the accessibility object.
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if (I->mxShape.is())
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{
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UnregisterAsDisposeListener (I->mxShape);
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I->disposeAccessibleObject (mrContext);
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}
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else
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{
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AccessibleShape* pAccessibleShape = I->GetAccessibleShape();
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pAccessibleShape->ResetState (AccessibleStateType::VISIBLE);
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I->mxAccessibleShape = nullptr;
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}
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}
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}
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}
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void ChildrenManagerImpl::MergeAccessibilityInformation (
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ChildDescriptorListType& raNewChildList)
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{
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ChildDescriptorListType::const_iterator aStartVisibleChildren = maVisibleChildren.begin();
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ChildDescriptorListType::const_iterator aEndVisibleChildren = maVisibleChildren.end();
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ChildDescriptorListType::const_iterator aEnd = raNewChildList.end();
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for (ChildDescriptorListType::iterator I=raNewChildList.begin(); I != aEnd; ++I)
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{
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ChildDescriptorListType::const_iterator aOldChildDescriptor =
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std::find(aStartVisibleChildren, aEndVisibleChildren, *I);
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// Copy accessible shape if that exists in the old descriptor.
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bool bRegistrationIsNecessary = true;
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if (aOldChildDescriptor != aEndVisibleChildren)
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if (aOldChildDescriptor->mxAccessibleShape.is())
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{
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I->mxAccessibleShape = aOldChildDescriptor->mxAccessibleShape;
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I->mbCreateEventPending = false;
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bRegistrationIsNecessary = false;
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}
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if (bRegistrationIsNecessary)
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RegisterAsDisposeListener (I->mxShape);
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}
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}
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void ChildrenManagerImpl::SendVisibleAreaEvents (
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ChildDescriptorListType& raNewChildList)
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{
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ChildDescriptorListType::const_iterator aEnd = raNewChildList.end();
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for (ChildDescriptorListType::iterator I=raNewChildList.begin(); I != aEnd; ++I)
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{
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// Tell shape of changed visible area. To do this, fake a
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// change of the view forwarder. (Actually we usually get here
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// as a result of a change of the view forwarder).
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AccessibleShape* pShape = I->GetAccessibleShape ();
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if (pShape != nullptr)
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pShape->ViewForwarderChanged (
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IAccessibleViewForwarderListener::VISIBLE_AREA,
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maShapeTreeInfo.GetViewForwarder());
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}
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}
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void ChildrenManagerImpl::CreateAccessibilityObjects (
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ChildDescriptorListType& raNewChildList)
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{
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ChildDescriptorListType::const_iterator aEnd = raNewChildList.end();
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sal_Int32 nPos = 0;
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for ( ChildDescriptorListType::iterator I = raNewChildList.begin(); I != aEnd; ++I,++nPos)
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{
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// Create the associated accessible object when the flag says so and
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// it does not yet exist.
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if ( ! I->mxAccessibleShape.is() )
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GetChild (*I,nPos);
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if (I->mxAccessibleShape.is() && I->mbCreateEventPending)
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{
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I->mbCreateEventPending = false;
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mrContext.CommitChange (
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AccessibleEventId::CHILD,
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uno::makeAny(I->mxAccessibleShape),
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uno::Any());
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}
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}
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}
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void ChildrenManagerImpl::AddShape (const Reference<drawing::XShape>& rxShape)
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{
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if (rxShape.is())
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{
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SolarMutexClearableGuard aGuard;
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// Test visibility of the shape.
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Rectangle aVisibleArea = maShapeTreeInfo.GetViewForwarder()->GetVisibleArea();
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awt::Point aPos = rxShape->getPosition();
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awt::Size aSize = rxShape->getSize();
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Rectangle aBoundingBox (
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aPos.X,
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aPos.Y,
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aPos.X + aSize.Width,
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aPos.Y + aSize.Height);
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// Add the shape only when it belongs to the list of shapes stored
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// in mxShapeList (which is either a page or a group shape).
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Reference<container::XChild> xChild (rxShape, uno::UNO_QUERY);
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if (xChild.is())
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{
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Reference<drawing::XShapes> xParent (xChild->getParent(), uno::UNO_QUERY);
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if (xParent == mxShapeList)
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if (aBoundingBox.IsOver (aVisibleArea))
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{
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// Add shape to list of visible shapes.
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maVisibleChildren.push_back (ChildDescriptor (rxShape));
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// Create accessibility object.
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ChildDescriptor& rDescriptor = maVisibleChildren.back();
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GetChild (rDescriptor, maVisibleChildren.size()-1);
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// Inform listeners about new child.
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uno::Any aNewShape;
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aNewShape <<= rDescriptor.mxAccessibleShape;
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aGuard.clear();
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mrContext.CommitChange (
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AccessibleEventId::CHILD,
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aNewShape,
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uno::Any());
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RegisterAsDisposeListener(rxShape);
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}
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}
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}
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}
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void ChildrenManagerImpl::RemoveShape (const Reference<drawing::XShape>& rxShape)
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{
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if (rxShape.is())
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{
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SolarMutexGuard g;
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|
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// Search shape in list of visible children.
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ChildDescriptorListType::iterator I (
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::std::find (maVisibleChildren.begin(), maVisibleChildren.end(),
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ChildDescriptor (rxShape)));
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if (I != maVisibleChildren.end())
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{
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// Remove descriptor from that list.
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Reference<XAccessible> xAccessibleShape (I->mxAccessibleShape);
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UnregisterAsDisposeListener (I->mxShape);
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// Dispose the accessible object.
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I->disposeAccessibleObject (mrContext);
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// Now we can safely remove the child descriptor and thus
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// invalidate the iterator.
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maVisibleChildren.erase (I);
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adjustIndexInParentOfShapes(maVisibleChildren);
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}
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}
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}
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void ChildrenManagerImpl::SetShapeList (const css::uno::Reference<css::drawing::XShapes>& xShapeList)
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{
|
|
mxShapeList = xShapeList;
|
|
}
|
|
|
|
|
|
void ChildrenManagerImpl::AddAccessibleShape (css::uno::Reference<css::accessibility::XAccessible> const & shape)
|
|
{
|
|
assert(shape.is());
|
|
maAccessibleShapes.push_back (shape);
|
|
}
|
|
|
|
|
|
void ChildrenManagerImpl::ClearAccessibleShapeList()
|
|
{
|
|
// Copy the list of (visible) shapes to local lists and clear the
|
|
// originals.
|
|
ChildDescriptorListType aLocalVisibleChildren;
|
|
aLocalVisibleChildren.swap(maVisibleChildren);
|
|
AccessibleShapeList aLocalAccessibleShapes;
|
|
aLocalAccessibleShapes.swap(maAccessibleShapes);
|
|
|
|
// Tell the listeners that all children are gone.
|
|
mrContext.CommitChange (
|
|
AccessibleEventId::INVALIDATE_ALL_CHILDREN,
|
|
uno::Any(),
|
|
uno::Any());
|
|
|
|
// There are no accessible shapes left so the index assigned to new
|
|
// accessible shapes can be reset.
|
|
mnNewNameIndex = 1;
|
|
|
|
// Now the objects in the local lists can be safely disposed without
|
|
// having problems with callers that want to update their child lists.
|
|
|
|
// Clear the list of visible accessible objects. Objects not created on
|
|
// demand for XShapes are treated below.
|
|
ChildDescriptorListType::const_iterator aEnd = aLocalVisibleChildren.end();
|
|
for (ChildDescriptorListType::iterator I=aLocalVisibleChildren.begin(); I != aEnd; ++I)
|
|
if ( I->mxAccessibleShape.is() && I->mxShape.is() )
|
|
{
|
|
::comphelper::disposeComponent(I->mxAccessibleShape);
|
|
I->mxAccessibleShape = nullptr;
|
|
}
|
|
|
|
// Dispose all objects in the accessible shape list.
|
|
AccessibleShapeList::const_iterator aEnd2 = aLocalAccessibleShapes.end();
|
|
for (AccessibleShapeList::iterator J=aLocalAccessibleShapes.begin(); J != aEnd2; ++J)
|
|
if (J->is())
|
|
{
|
|
// Dispose the object.
|
|
::comphelper::disposeComponent(*J);
|
|
*J = nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
/** If the broadcasters change at which this object is registered then
|
|
unregister at old and register at new broadcasters.
|
|
*/
|
|
void ChildrenManagerImpl::SetInfo (const AccessibleShapeTreeInfo& rShapeTreeInfo)
|
|
{
|
|
// Remember the current broadcasters and exchange the shape tree info.
|
|
Reference<document::XEventBroadcaster> xCurrentBroadcaster;
|
|
Reference<frame::XController> xCurrentController;
|
|
Reference<view::XSelectionSupplier> xCurrentSelectionSupplier;
|
|
{
|
|
SolarMutexGuard g;
|
|
xCurrentBroadcaster = maShapeTreeInfo.GetModelBroadcaster();
|
|
xCurrentController = maShapeTreeInfo.GetController();
|
|
xCurrentSelectionSupplier.set( xCurrentController, uno::UNO_QUERY);
|
|
maShapeTreeInfo = rShapeTreeInfo;
|
|
}
|
|
|
|
// Move registration to new model.
|
|
if (maShapeTreeInfo.GetModelBroadcaster() != xCurrentBroadcaster)
|
|
{
|
|
// Register at new broadcaster.
|
|
if (maShapeTreeInfo.GetModelBroadcaster().is())
|
|
maShapeTreeInfo.GetModelBroadcaster()->addEventListener (
|
|
static_cast<document::XEventListener*>(this));
|
|
|
|
// Unregister at old broadcaster.
|
|
if (xCurrentBroadcaster.is())
|
|
xCurrentBroadcaster->removeEventListener (
|
|
static_cast<document::XEventListener*>(this));
|
|
}
|
|
|
|
// Move registration to new selection supplier.
|
|
Reference<frame::XController> xNewController(maShapeTreeInfo.GetController());
|
|
Reference<view::XSelectionSupplier> xNewSelectionSupplier (
|
|
xNewController, uno::UNO_QUERY);
|
|
if (xNewSelectionSupplier != xCurrentSelectionSupplier)
|
|
{
|
|
// Register at new broadcaster.
|
|
if (xNewSelectionSupplier.is())
|
|
{
|
|
xNewController->addEventListener(
|
|
static_cast<document::XEventListener*>(this));
|
|
|
|
xNewSelectionSupplier->addSelectionChangeListener (
|
|
static_cast<view::XSelectionChangeListener*>(this));
|
|
}
|
|
|
|
// Unregister at old broadcaster.
|
|
if (xCurrentSelectionSupplier.is())
|
|
{
|
|
xCurrentSelectionSupplier->removeSelectionChangeListener (
|
|
static_cast<view::XSelectionChangeListener*>(this));
|
|
|
|
xCurrentController->removeEventListener(
|
|
static_cast<document::XEventListener*>(this));
|
|
}
|
|
}
|
|
}
|
|
|
|
// lang::XEventListener
|
|
void SAL_CALL
|
|
ChildrenManagerImpl::disposing (const lang::EventObject& rEventObject)
|
|
throw (uno::RuntimeException, std::exception)
|
|
{
|
|
if (rEventObject.Source == maShapeTreeInfo.GetModelBroadcaster()
|
|
|| rEventObject.Source == maShapeTreeInfo.GetController())
|
|
{
|
|
impl_dispose();
|
|
}
|
|
|
|
// Handle disposing UNO shapes.
|
|
else
|
|
{
|
|
Reference<drawing::XShape> xShape (rEventObject.Source, uno::UNO_QUERY);
|
|
|
|
// Find the descriptor for the given shape.
|
|
ChildDescriptorListType::iterator I (
|
|
::std::find (maVisibleChildren.begin(), maVisibleChildren.end(),
|
|
ChildDescriptor (xShape)));
|
|
if (I != maVisibleChildren.end())
|
|
{
|
|
// Clear the descriptor.
|
|
I->disposeAccessibleObject (mrContext);
|
|
I->mxShape = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
// document::XEventListener
|
|
/** Listen for new and removed shapes.
|
|
*/
|
|
void SAL_CALL
|
|
ChildrenManagerImpl::notifyEvent (
|
|
const document::EventObject& rEventObject)
|
|
throw (uno::RuntimeException, std::exception)
|
|
{
|
|
static const char sShapeInserted[] = "ShapeInserted";
|
|
static const char sShapeRemoved[] = "ShapeRemoved";
|
|
|
|
|
|
if (rEventObject.EventName == sShapeInserted)
|
|
AddShape (Reference<drawing::XShape>(rEventObject.Source, uno::UNO_QUERY));
|
|
else if (rEventObject.EventName == sShapeRemoved)
|
|
RemoveShape (Reference<drawing::XShape>(rEventObject.Source, uno::UNO_QUERY));
|
|
// else ignore unknown event.
|
|
}
|
|
|
|
// view::XSelectionChangeListener
|
|
void SAL_CALL
|
|
ChildrenManagerImpl::selectionChanged (const lang::EventObject& /*rEvent*/)
|
|
throw (uno::RuntimeException, std::exception)
|
|
{
|
|
UpdateSelection ();
|
|
}
|
|
|
|
|
|
void ChildrenManagerImpl::impl_dispose()
|
|
{
|
|
Reference<frame::XController> xController(maShapeTreeInfo.GetController());
|
|
// Remove from broadcasters.
|
|
try
|
|
{
|
|
Reference<view::XSelectionSupplier> xSelectionSupplier (
|
|
xController, uno::UNO_QUERY);
|
|
if (xSelectionSupplier.is())
|
|
{
|
|
xSelectionSupplier->removeSelectionChangeListener (
|
|
static_cast<view::XSelectionChangeListener*>(this));
|
|
}
|
|
}
|
|
catch( uno::RuntimeException&)
|
|
{}
|
|
|
|
try
|
|
{
|
|
if (xController.is())
|
|
xController->removeEventListener(
|
|
static_cast<document::XEventListener*>(this));
|
|
}
|
|
catch( uno::RuntimeException&)
|
|
{}
|
|
|
|
maShapeTreeInfo.SetController (nullptr);
|
|
|
|
try
|
|
{
|
|
// Remove from broadcaster.
|
|
if (maShapeTreeInfo.GetModelBroadcaster().is())
|
|
maShapeTreeInfo.GetModelBroadcaster()->removeEventListener (
|
|
static_cast<document::XEventListener*>(this));
|
|
maShapeTreeInfo.SetModelBroadcaster (nullptr);
|
|
}
|
|
catch( uno::RuntimeException& )
|
|
{}
|
|
|
|
ClearAccessibleShapeList ();
|
|
SetShapeList (nullptr);
|
|
}
|
|
|
|
|
|
void SAL_CALL ChildrenManagerImpl::disposing()
|
|
{
|
|
impl_dispose();
|
|
}
|
|
|
|
// IAccessibleViewForwarderListener
|
|
void ChildrenManagerImpl::ViewForwarderChanged (ChangeType aChangeType,
|
|
const IAccessibleViewForwarder* pViewForwarder)
|
|
{
|
|
if (aChangeType == IAccessibleViewForwarderListener::VISIBLE_AREA)
|
|
Update (false);
|
|
else
|
|
{
|
|
SolarMutexGuard g;
|
|
ChildDescriptorListType::const_iterator aEnd = maVisibleChildren.end();
|
|
for (ChildDescriptorListType::iterator I=maVisibleChildren.begin(); I != aEnd; ++I)
|
|
{
|
|
AccessibleShape* pShape = I->GetAccessibleShape();
|
|
if (pShape != nullptr)
|
|
pShape->ViewForwarderChanged (aChangeType, pViewForwarder);
|
|
}
|
|
}
|
|
}
|
|
|
|
// IAccessibleParent
|
|
bool ChildrenManagerImpl::ReplaceChild (
|
|
AccessibleShape* pCurrentChild,
|
|
const css::uno::Reference< css::drawing::XShape >& _rxShape,
|
|
const long /*_nIndex*/,
|
|
const AccessibleShapeTreeInfo& _rShapeTreeInfo)
|
|
throw (uno::RuntimeException)
|
|
{
|
|
AccessibleShapeInfo aShapeInfo( _rxShape, pCurrentChild->getAccessibleParent(), this );
|
|
// create the new child
|
|
rtl::Reference<AccessibleShape> pNewChild(ShapeTypeHandler::Instance().CreateAccessibleObject (
|
|
aShapeInfo,
|
|
_rShapeTreeInfo
|
|
));
|
|
if ( pNewChild.is() )
|
|
pNewChild->Init();
|
|
|
|
bool bResult = false;
|
|
|
|
// Iterate over the visible children. If one of them has an already
|
|
// created accessible object that matches pCurrentChild then replace
|
|
// it. Otherwise the child to replace is either not in the list or has
|
|
// not ye been created (and is therefore not in the list, too) and a
|
|
// replacement is not necessary.
|
|
ChildDescriptorListType::const_iterator aEnd = maVisibleChildren.end();
|
|
for (ChildDescriptorListType::iterator I=maVisibleChildren.begin(); I != aEnd; ++I)
|
|
{
|
|
if (I->GetAccessibleShape() == pCurrentChild)
|
|
{
|
|
// Dispose the current child and send an event about its deletion.
|
|
pCurrentChild->dispose();
|
|
mrContext.CommitChange (
|
|
AccessibleEventId::CHILD,
|
|
uno::Any(),
|
|
uno::makeAny (I->mxAccessibleShape));
|
|
|
|
// Replace with replacement and send an event about existence
|
|
// of the new child.
|
|
I->mxAccessibleShape = pNewChild.get();
|
|
mrContext.CommitChange (
|
|
AccessibleEventId::CHILD,
|
|
uno::makeAny (I->mxAccessibleShape),
|
|
uno::Any());
|
|
bResult = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// When not found among the visible children we have to search the list
|
|
// of accessible shapes. This is not yet implemented.
|
|
|
|
return bResult;
|
|
}
|
|
|
|
// Add the impl method for IAccessibleParent interface
|
|
AccessibleControlShape * ChildrenManagerImpl::GetAccControlShapeFromModel(css::beans::XPropertySet* pSet) throw (css::uno::RuntimeException)
|
|
{
|
|
sal_Int32 count = GetChildCount();
|
|
for (sal_Int32 index=0;index<count;index++)
|
|
{
|
|
AccessibleShape* pAccShape = maVisibleChildren[index].GetAccessibleShape();
|
|
if (pAccShape && ::accessibility::ShapeTypeHandler::Instance().GetTypeId (pAccShape->GetXShape()) == DRAWING_CONTROL)
|
|
{
|
|
::accessibility::AccessibleControlShape *pCtlAccShape = static_cast < ::accessibility::AccessibleControlShape* >(pAccShape);
|
|
if (pCtlAccShape && pCtlAccShape->GetControlModel() == pSet)
|
|
return pCtlAccShape;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
uno::Reference<XAccessible>
|
|
ChildrenManagerImpl::GetAccessibleCaption (const uno::Reference<drawing::XShape>& xShape)
|
|
throw (uno::RuntimeException)
|
|
{
|
|
ChildDescriptorListType::const_iterator aEnd = maVisibleChildren.end();
|
|
for (ChildDescriptorListType::iterator I = maVisibleChildren.begin(); I != aEnd; ++I)
|
|
{
|
|
if ( I->mxShape.get() == xShape.get() )
|
|
return I->mxAccessibleShape;
|
|
}
|
|
return uno::Reference<XAccessible> ();
|
|
}
|
|
|
|
/** Update the <const>SELECTED</const> and the <const>FOCUSED</const> state
|
|
of all visible children. Maybe this should be changed to all children.
|
|
|
|
Iterate over all descriptors of visible accessible shapes and look them
|
|
up in the selection.
|
|
|
|
If there is no valid controller then all shapes are deselected and
|
|
unfocused. If the controller's frame is not active then all shapes are
|
|
unfocused.
|
|
*/
|
|
void ChildrenManagerImpl::UpdateSelection()
|
|
{
|
|
Reference<frame::XController> xController(maShapeTreeInfo.GetController());
|
|
Reference<view::XSelectionSupplier> xSelectionSupplier (
|
|
xController, uno::UNO_QUERY);
|
|
|
|
// Try to cast the selection both to a multi selection and to a single
|
|
// selection.
|
|
Reference<container::XIndexAccess> xSelectedShapeAccess;
|
|
Reference<drawing::XShape> xSelectedShape;
|
|
if (xSelectionSupplier.is())
|
|
{
|
|
xSelectedShapeAccess.set( xSelectionSupplier->getSelection(), uno::UNO_QUERY);
|
|
xSelectedShape.set( xSelectionSupplier->getSelection(), uno::UNO_QUERY);
|
|
}
|
|
|
|
// Remember the current and new focused shape.
|
|
AccessibleShape* pCurrentlyFocusedShape = nullptr;
|
|
AccessibleShape* pNewFocusedShape = nullptr;
|
|
typedef std::pair< AccessibleShape* , sal_Bool > PAIR_SHAPE;//sal_Bool Selected,UnSelected.
|
|
typedef std::vector< PAIR_SHAPE > VEC_SHAPE;
|
|
VEC_SHAPE vecSelect;
|
|
int nAddSelect=0;
|
|
int nRemoveSelect=0;
|
|
bool bHasSelectedShape=false;
|
|
ChildDescriptorListType::const_iterator aEnd = maVisibleChildren.end();
|
|
for (ChildDescriptorListType::iterator I=maVisibleChildren.begin(); I != aEnd; ++I)
|
|
{
|
|
AccessibleShape* pAccessibleShape = I->GetAccessibleShape();
|
|
if (I->mxAccessibleShape.is() && I->mxShape.is() && pAccessibleShape!=nullptr)
|
|
{
|
|
short nRole = pAccessibleShape->getAccessibleRole();
|
|
bool bDrawShape = (
|
|
nRole == AccessibleRole::GRAPHIC ||
|
|
nRole == AccessibleRole::EMBEDDED_OBJECT ||
|
|
nRole == AccessibleRole::SHAPE ||
|
|
nRole == AccessibleRole::IMAGE_MAP ||
|
|
nRole == AccessibleRole::TABLE_CELL ||
|
|
nRole == AccessibleRole::TABLE );
|
|
bool bShapeIsSelected = false;
|
|
|
|
// Look up the shape in the (single or multi-) selection.
|
|
if (xSelectedShape.is())
|
|
{
|
|
if (I->mxShape == xSelectedShape)
|
|
{
|
|
bShapeIsSelected = true;
|
|
pNewFocusedShape = pAccessibleShape;
|
|
}
|
|
}
|
|
else if (xSelectedShapeAccess.is())
|
|
{
|
|
sal_Int32 nCount=xSelectedShapeAccess->getCount();
|
|
for (sal_Int32 i=0; i<nCount&&!bShapeIsSelected; i++)
|
|
if (xSelectedShapeAccess->getByIndex(i) == I->mxShape)
|
|
{
|
|
bShapeIsSelected = true;
|
|
// In a multi-selection no shape has the focus.
|
|
if (nCount == 1)
|
|
pNewFocusedShape = pAccessibleShape;
|
|
}
|
|
}
|
|
|
|
// Set or reset the SELECTED state.
|
|
if (bShapeIsSelected)
|
|
{
|
|
if (pAccessibleShape->SetState (AccessibleStateType::SELECTED))
|
|
{
|
|
if (bDrawShape)
|
|
{
|
|
vecSelect.push_back(std::make_pair(pAccessibleShape,true));
|
|
++nAddSelect;
|
|
}
|
|
}
|
|
else
|
|
{//Selected not change,has selected shape before
|
|
bHasSelectedShape=true;
|
|
}
|
|
}
|
|
else
|
|
//pAccessibleShape->ResetState (AccessibleStateType::SELECTED);
|
|
{
|
|
if(pAccessibleShape->ResetState (AccessibleStateType::SELECTED))
|
|
{
|
|
if(bDrawShape)
|
|
{
|
|
vecSelect.push_back(std::make_pair(pAccessibleShape,false));
|
|
++nRemoveSelect;
|
|
}
|
|
}
|
|
}
|
|
// Does the shape have the current selection?
|
|
if (pAccessibleShape->GetState (AccessibleStateType::FOCUSED))
|
|
pCurrentlyFocusedShape = pAccessibleShape;
|
|
}
|
|
}
|
|
|
|
vcl::Window *pParentWindow = maShapeTreeInfo.GetWindow();
|
|
bool bShapeActive= false;
|
|
// For table cell, the table's parent must be checked to make sure it has focus.
|
|
if (pParentWindow)
|
|
{
|
|
vcl::Window *pPWindow = pParentWindow->GetParent();
|
|
if (pParentWindow->HasFocus() || (pPWindow && pPWindow->HasFocus()))
|
|
bShapeActive =true;
|
|
}
|
|
// Move focus from current to newly focused shape.
|
|
if (pCurrentlyFocusedShape != pNewFocusedShape)
|
|
{
|
|
if (pCurrentlyFocusedShape != nullptr)
|
|
pCurrentlyFocusedShape->ResetState (AccessibleStateType::FOCUSED);
|
|
if (pNewFocusedShape != nullptr && bShapeActive)
|
|
pNewFocusedShape->SetState (AccessibleStateType::FOCUSED);
|
|
}
|
|
|
|
if (nAddSelect >= 10 )//fire selection within
|
|
{
|
|
mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED_WITHIN,uno::Any(),uno::Any());
|
|
nAddSelect =0 ;//not fire selection event
|
|
}
|
|
for (VEC_SHAPE::reverse_iterator vi = vecSelect.rbegin(), aEndVecSelect = vecSelect.rend(); vi != aEndVecSelect ;++vi)
|
|
{
|
|
PAIR_SHAPE &pairShape= *vi;
|
|
Reference< XAccessible > xShape(pairShape.first);
|
|
uno::Any anyShape;
|
|
anyShape <<= xShape;
|
|
|
|
if (pairShape.second)//Selection add
|
|
{
|
|
if (bHasSelectedShape)
|
|
{
|
|
if ( nAddSelect > 0 )
|
|
{
|
|
mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED_ADD,anyShape,uno::Any());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//if has not selected shape ,first selected shape is fire selection event;
|
|
if (nAddSelect > 0 )
|
|
{
|
|
mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED,anyShape,uno::Any());
|
|
}
|
|
if (nAddSelect > 1 )//check other selected shape fire selection add event
|
|
{
|
|
bHasSelectedShape=true;
|
|
}
|
|
}
|
|
}
|
|
else //selection remove
|
|
{
|
|
mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED_REMOVE,anyShape,uno::Any());
|
|
}
|
|
}
|
|
|
|
// Remember whether there is a shape that now has the focus.
|
|
mpFocusedShape = pNewFocusedShape;
|
|
}
|
|
|
|
|
|
bool ChildrenManagerImpl::HasFocus()
|
|
{
|
|
return mpFocusedShape != nullptr;
|
|
}
|
|
|
|
|
|
void ChildrenManagerImpl::RemoveFocus()
|
|
{
|
|
if (mpFocusedShape != nullptr)
|
|
{
|
|
mpFocusedShape->ResetState (AccessibleStateType::FOCUSED);
|
|
mpFocusedShape = nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
void ChildrenManagerImpl::RegisterAsDisposeListener (
|
|
const Reference<drawing::XShape>& xShape)
|
|
{
|
|
Reference<lang::XComponent> xComponent (xShape, uno::UNO_QUERY);
|
|
if (xComponent.is())
|
|
xComponent->addEventListener (
|
|
static_cast<document::XEventListener*>(this));
|
|
}
|
|
|
|
|
|
void ChildrenManagerImpl::UnregisterAsDisposeListener (
|
|
const Reference<drawing::XShape>& xShape)
|
|
{
|
|
Reference<lang::XComponent> xComponent (xShape, uno::UNO_QUERY);
|
|
if (xComponent.is())
|
|
xComponent->removeEventListener (
|
|
static_cast<document::XEventListener*>(this));
|
|
}
|
|
|
|
// AccessibleChildDescriptor
|
|
ChildDescriptor::ChildDescriptor (const Reference<drawing::XShape>& xShape)
|
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: mxShape (xShape),
|
|
mxAccessibleShape (nullptr),
|
|
mbCreateEventPending (true)
|
|
{
|
|
// Empty.
|
|
}
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|
|
|
|
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ChildDescriptor::ChildDescriptor (const Reference<XAccessible>& rxAccessibleShape)
|
|
: mxShape (nullptr),
|
|
mxAccessibleShape (rxAccessibleShape),
|
|
mbCreateEventPending (true)
|
|
{
|
|
// Make sure that the accessible object has the <const>VISIBLE</const>
|
|
// state set.
|
|
AccessibleShape* pAccessibleShape = GetAccessibleShape();
|
|
pAccessibleShape->SetState (AccessibleStateType::VISIBLE);
|
|
}
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|
|
|
|
|
ChildDescriptor::~ChildDescriptor()
|
|
{
|
|
}
|
|
|
|
|
|
AccessibleShape* ChildDescriptor::GetAccessibleShape() const
|
|
{
|
|
return static_cast<AccessibleShape*> (mxAccessibleShape.get());
|
|
}
|
|
|
|
void ChildDescriptor::setIndexAtAccessibleShape(sal_Int32 _nIndex)
|
|
{
|
|
AccessibleShape* pShape = GetAccessibleShape();
|
|
if ( pShape )
|
|
pShape->setIndexInParent(_nIndex);
|
|
}
|
|
|
|
|
|
void ChildDescriptor::disposeAccessibleObject (AccessibleContextBase& rParent)
|
|
{
|
|
if (mxAccessibleShape.is())
|
|
{
|
|
// Send event that the shape has been removed.
|
|
uno::Any aOldValue;
|
|
aOldValue <<= mxAccessibleShape;
|
|
rParent.CommitChange (
|
|
AccessibleEventId::CHILD,
|
|
uno::Any(),
|
|
aOldValue);
|
|
|
|
// Dispose and remove the object.
|
|
Reference<lang::XComponent> xComponent (mxAccessibleShape, uno::UNO_QUERY);
|
|
if (xComponent.is())
|
|
xComponent->dispose ();
|
|
|
|
mxAccessibleShape = nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
} // end of namespace accessibility
|
|
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|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|