Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 604 insertions, 0 deletions

diff --git a/sc/source/ui/Accessibility/AccessibleEditObject.cxx b/sc/source/ui/Accessibility/AccessibleEditObject.cxx
new file mode 100644
index 000000000..8412b313c
--- /dev/null
+++ b/sc/source/ui/Accessibility/AccessibleEditObject.cxx
@@ -0,0 +1,604 @@
+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+
+#include <memory>
+#include <utility>
+
+#include <AccessibleEditObject.hxx>
+#include <AccessibleText.hxx>
+#include <editsrc.hxx>
+#include <scmod.hxx>
+#include <inputhdl.hxx>
+#include <inputwin.hxx>
+
+#include <unotools/accessiblestatesethelper.hxx>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/sheet/XSpreadsheetDocument.hpp>
+#include <com/sun/star/sheet/XSpreadsheet.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <svx/AccessibleTextHelper.hxx>
+#include <editeng/editview.hxx>
+#include <editeng/editeng.hxx>
+#include <svx/svdmodel.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+#include <sfx2/objsh.hxx>
+#include <cppuhelper/queryinterface.hxx>
+
+#include <unonames.hxx>
+#include <document.hxx>
+#include <AccessibleDocument.hxx>
+#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
+#include <unotools/accessiblerelationsethelper.hxx>
+#include <com/sun/star/accessibility/XAccessibleText.hpp>
+
+using ::com::sun::star::lang::IndexOutOfBoundsException;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+//=====  internal  ============================================================
+
+ScAccessibleEditObject::ScAccessibleEditObject(
+        const uno::Reference<XAccessible>& rxParent,
+        EditView* pEditView, vcl::Window* pWin, const OUString& rName,
+        const OUString& rDescription, EditObjectType eObjectType)
+    : ScAccessibleContextBase(rxParent, AccessibleRole::TEXT_FRAME)
+    , mpEditView(pEditView)
+    , mpWindow(pWin)
+    , mpTextWnd(nullptr)
+    , meObjectType(eObjectType)
+    , mbHasFocus(false)
+    , m_pScDoc(nullptr)
+{
+    InitAcc(rxParent, pEditView, rName, rDescription);
+}
+
+ScAccessibleEditObject::ScAccessibleEditObject(EditObjectType eObjectType)
+    : ScAccessibleContextBase(nullptr, AccessibleRole::TEXT_FRAME)
+    , mpEditView(nullptr)
+    , mpWindow(nullptr)
+    , mpTextWnd(nullptr)
+    , meObjectType(eObjectType)
+    , mbHasFocus(false)
+    , m_pScDoc(nullptr)
+{
+}
+
+void ScAccessibleEditObject::InitAcc(
+        const uno::Reference<XAccessible>& rxParent,
+        EditView* pEditView,
+        const OUString& rName,
+        const OUString& rDescription)
+{
+    SetParent(rxParent);
+    mpEditView = pEditView;
+
+    CreateTextHelper();
+    SetName(rName);
+    SetDescription(rDescription);
+    if( meObjectType == CellInEditMode)
+    {
+        const ScAccessibleDocument *pAccDoc = static_cast<ScAccessibleDocument*>(rxParent.get());
+        if (pAccDoc)
+        {
+            m_pScDoc = pAccDoc->GetDocument();
+            m_curCellAddress =pAccDoc->GetCurCellAddress();
+        }
+    }
+}
+
+ScAccessibleEditObject::~ScAccessibleEditObject()
+{
+    if (!ScAccessibleContextBase::IsDefunc() && !rBHelper.bInDispose)
+    {
+        // increment refcount to prevent double call off dtor
+        osl_atomic_increment( &m_refCount );
+        // call dispose to inform object which have a weak reference to this object
+        dispose();
+    }
+}
+
+void SAL_CALL ScAccessibleEditObject::disposing()
+{
+    SolarMutexGuard aGuard;
+    mpTextHelper.reset();
+
+    ScAccessibleContextBase::disposing();
+}
+
+void ScAccessibleEditObject::LostFocus()
+{
+    mbHasFocus = false;
+    if (mpTextHelper)
+        mpTextHelper->SetFocus(false);
+    CommitFocusLost();
+}
+
+void ScAccessibleEditObject::GotFocus()
+{
+    mbHasFocus = true;
+    CommitFocusGained();
+    if (mpTextHelper)
+        mpTextHelper->SetFocus();
+}
+
+//=====  XInterface  ==========================================================
+
+css::uno::Any SAL_CALL
+    ScAccessibleEditObject::queryInterface (const css::uno::Type & rType)
+{
+    css::uno::Any aReturn = ScAccessibleContextBase::queryInterface (rType);
+    if ( ! aReturn.hasValue())
+        aReturn = ::cppu::queryInterface (rType,
+            static_cast< css::accessibility::XAccessibleSelection* >(this)
+            );
+    return aReturn;
+}
+void SAL_CALL
+    ScAccessibleEditObject::acquire()
+    noexcept
+{
+    ScAccessibleContextBase::acquire ();
+}
+void SAL_CALL
+    ScAccessibleEditObject::release()
+    noexcept
+{
+    ScAccessibleContextBase::release ();
+}
+    //=====  XAccessibleComponent  ============================================
+
+uno::Reference< XAccessible > SAL_CALL ScAccessibleEditObject::getAccessibleAtPoint(
+        const awt::Point& rPoint )
+{
+    uno::Reference<XAccessible> xRet;
+    if (containsPoint(rPoint))
+    {
+        SolarMutexGuard aGuard;
+        IsObjectValid();
+
+        CreateTextHelper();
+
+        xRet = mpTextHelper->GetAt(rPoint);
+    }
+
+    return xRet;
+}
+
+tools::Rectangle ScAccessibleEditObject::GetBoundingBoxOnScreen() const
+{
+    tools::Rectangle aScreenBounds;
+
+    if ( mpWindow )
+    {
+        if ( meObjectType == CellInEditMode )
+        {
+            if ( mpEditView && mpEditView->GetEditEngine() )
+            {
+                MapMode aMapMode( mpEditView->GetEditEngine()->GetRefMapMode() );
+                aScreenBounds = mpWindow->LogicToPixel( mpEditView->GetOutputArea(), aMapMode );
+                Point aCellLoc = aScreenBounds.TopLeft();
+                tools::Rectangle aWindowRect = mpWindow->GetWindowExtentsRelative( nullptr );
+                Point aWindowLoc = aWindowRect.TopLeft();
+                Point aPos( aCellLoc.getX() + aWindowLoc.getX(), aCellLoc.getY() + aWindowLoc.getY() );
+                aScreenBounds.SetPos( aPos );
+            }
+        }
+        else
+        {
+            aScreenBounds = mpWindow->GetWindowExtentsRelative( nullptr );
+        }
+    }
+
+    return aScreenBounds;
+}
+
+tools::Rectangle ScAccessibleEditObject::GetBoundingBox() const
+{
+    tools::Rectangle aBounds( GetBoundingBoxOnScreen() );
+
+    if ( mpWindow )
+    {
+        uno::Reference< XAccessible > xThis( mpWindow->GetAccessible() );
+        if ( xThis.is() )
+        {
+            uno::Reference< XAccessibleContext > xContext( xThis->getAccessibleContext() );
+            if ( xContext.is() )
+            {
+                uno::Reference< XAccessible > xParent( xContext->getAccessibleParent() );
+                if ( xParent.is() )
+                {
+                    uno::Reference< XAccessibleComponent > xParentComponent( xParent->getAccessibleContext(), uno::UNO_QUERY );
+                    if ( xParentComponent.is() )
+                    {
+                        Point aScreenLoc = aBounds.TopLeft();
+                        awt::Point aParentScreenLoc = xParentComponent->getLocationOnScreen();
+                        Point aPos( aScreenLoc.getX() - aParentScreenLoc.X, aScreenLoc.getY() - aParentScreenLoc.Y );
+                        aBounds.SetPos( aPos );
+                    }
+                }
+            }
+        }
+    }
+
+    return aBounds;
+}
+
+    //=====  XAccessibleContext  ==============================================
+
+sal_Int32 SAL_CALL
+    ScAccessibleEditObject::getAccessibleChildCount()
+{
+    SolarMutexGuard aGuard;
+    IsObjectValid();
+    CreateTextHelper();
+    return mpTextHelper->GetChildCount();
+}
+
+uno::Reference< XAccessible > SAL_CALL
+    ScAccessibleEditObject::getAccessibleChild(sal_Int32 nIndex)
+{
+    SolarMutexGuard aGuard;
+    IsObjectValid();
+    CreateTextHelper();
+    return mpTextHelper->GetChild(nIndex);
+}
+
+uno::Reference<XAccessibleStateSet> SAL_CALL
+    ScAccessibleEditObject::getAccessibleStateSet()
+{
+    SolarMutexGuard aGuard;
+    uno::Reference<XAccessibleStateSet> xParentStates;
+    if (getAccessibleParent().is())
+    {
+        uno::Reference<XAccessibleContext> xParentContext = getAccessibleParent()->getAccessibleContext();
+        xParentStates = xParentContext->getAccessibleStateSet();
+    }
+    rtl::Reference<utl::AccessibleStateSetHelper> pStateSet = new utl::AccessibleStateSetHelper();
+    if (IsDefunc(xParentStates))
+        pStateSet->AddState(AccessibleStateType::DEFUNC);
+    else
+    {
+        // all states are const, because this object exists only in one state
+        pStateSet->AddState(AccessibleStateType::EDITABLE);
+        pStateSet->AddState(AccessibleStateType::ENABLED);
+        pStateSet->AddState(AccessibleStateType::SENSITIVE);
+        pStateSet->AddState(AccessibleStateType::MULTI_LINE);
+        pStateSet->AddState(AccessibleStateType::MULTI_SELECTABLE);
+        pStateSet->AddState(AccessibleStateType::SHOWING);
+        pStateSet->AddState(AccessibleStateType::VISIBLE);
+    }
+    return pStateSet;
+}
+
+OUString
+    ScAccessibleEditObject::createAccessibleDescription()
+{
+//    OSL_FAIL("Should never be called, because is set in the constructor.")
+    return OUString();
+}
+
+OUString
+    ScAccessibleEditObject::createAccessibleName()
+{
+    OSL_FAIL("Should never be called, because is set in the constructor.");
+    return OUString();
+}
+
+    ///=====  XAccessibleEventBroadcaster  =====================================
+
+void SAL_CALL
+    ScAccessibleEditObject::addAccessibleEventListener(const uno::Reference<XAccessibleEventListener>& xListener)
+{
+    CreateTextHelper();
+
+    mpTextHelper->AddEventListener(xListener);
+
+    ScAccessibleContextBase::addAccessibleEventListener(xListener);
+}
+
+void SAL_CALL
+    ScAccessibleEditObject::removeAccessibleEventListener(const uno::Reference<XAccessibleEventListener>& xListener)
+{
+    CreateTextHelper();
+
+    mpTextHelper->RemoveEventListener(xListener);
+
+    ScAccessibleContextBase::removeAccessibleEventListener(xListener);
+}
+
+    //=====  XServiceInfo  ====================================================
+
+OUString SAL_CALL ScAccessibleEditObject::getImplementationName()
+{
+    return "ScAccessibleEditObject";
+}
+
+//=====  XTypeProvider  =======================================================
+
+uno::Sequence<sal_Int8> SAL_CALL
+    ScAccessibleEditObject::getImplementationId()
+{
+    return css::uno::Sequence<sal_Int8>();
+}
+
+    //====  internal  =========================================================
+
+bool ScAccessibleEditObject::IsDefunc(
+    const uno::Reference<XAccessibleStateSet>& rxParentStates)
+{
+    return ScAccessibleContextBase::IsDefunc() || !getAccessibleParent().is() ||
+         (rxParentStates.is() && rxParentStates->contains(AccessibleStateType::DEFUNC));
+}
+
+OutputDevice* ScAccessibleEditObject::GetOutputDeviceForView()
+{
+    return mpWindow->GetOutDev();
+}
+
+void ScAccessibleEditObject::CreateTextHelper()
+{
+    if (mpTextHelper)
+        return;
+
+    ::std::unique_ptr < ScAccessibleTextData > pAccessibleTextData;
+    if (meObjectType == CellInEditMode || meObjectType == EditControl)
+    {
+        pAccessibleTextData.reset
+            (new ScAccessibleEditObjectTextData(mpEditView, GetOutputDeviceForView()));
+    }
+    else
+    {
+        pAccessibleTextData.reset
+            (new ScAccessibleEditLineTextData(nullptr, GetOutputDeviceForView(), mpTextWnd));
+    }
+
+    std::unique_ptr<ScAccessibilityEditSource> pEditSrc =
+        std::make_unique<ScAccessibilityEditSource>(std::move(pAccessibleTextData));
+
+    mpTextHelper = std::make_unique<::accessibility::AccessibleTextHelper>(std::move(pEditSrc));
+    mpTextHelper->SetEventSource(this);
+
+    const ScInputHandler* pInputHdl = SC_MOD()->GetInputHdl();
+    if ( pInputHdl && pInputHdl->IsEditMode() )
+    {
+        mpTextHelper->SetFocus();
+    }
+    else
+    {
+        mpTextHelper->SetFocus(mbHasFocus);
+    }
+
+    // #i54814# activate cell in edit mode
+    if( meObjectType == CellInEditMode )
+    {
+        // do not activate cell object, if top edit line is active
+        if( pInputHdl && !pInputHdl->IsTopMode() )
+        {
+            SdrHint aHint( SdrHintKind::BeginEdit );
+            mpTextHelper->GetEditSource().GetBroadcaster().Broadcast( aHint );
+        }
+    }
+}
+
+sal_Int32 SAL_CALL ScAccessibleEditObject::getForeground(  )
+{
+    return GetFgBgColor(SC_UNONAME_CCOLOR);
+}
+
+sal_Int32 SAL_CALL ScAccessibleEditObject::getBackground(  )
+{
+    return GetFgBgColor(SC_UNONAME_CELLBACK);
+}
+
+sal_Int32 ScAccessibleEditObject::GetFgBgColor( const OUString &strPropColor)
+{
+    SolarMutexGuard aGuard;
+    sal_Int32 nColor(0);
+    if (m_pScDoc)
+    {
+        SfxObjectShell* pObjSh = m_pScDoc->GetDocumentShell();
+        if ( pObjSh )
+        {
+            uno::Reference <sheet::XSpreadsheetDocument> xSpreadDoc( pObjSh->GetModel(), uno::UNO_QUERY );
+            if ( xSpreadDoc.is() )
+            {
+                uno::Reference<sheet::XSpreadsheets> xSheets = xSpreadDoc->getSheets();
+                uno::Reference<container::XIndexAccess> xIndex( xSheets, uno::UNO_QUERY );
+                if ( xIndex.is() )
+                {
+                    uno::Any aTable = xIndex->getByIndex(m_curCellAddress.Tab());
+                    uno::Reference<sheet::XSpreadsheet> xTable;
+                    if (aTable>>=xTable)
+                    {
+                        uno::Reference<table::XCell> xCell = xTable->getCellByPosition(m_curCellAddress.Col(), m_curCellAddress.Row());
+                        if (xCell.is())
+                        {
+                            uno::Reference<beans::XPropertySet> xCellProps(xCell, uno::UNO_QUERY);
+                            if (xCellProps.is())
+                            {
+                                uno::Any aAny = xCellProps->getPropertyValue(strPropColor);
+                                aAny >>= nColor;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return nColor;
+}
+//=====  XAccessibleSelection  ============================================
+
+void SAL_CALL ScAccessibleEditObject::selectAccessibleChild( sal_Int32 )
+{
+}
+
+sal_Bool SAL_CALL ScAccessibleEditObject::isAccessibleChildSelected( sal_Int32 nChildIndex )
+{
+    uno::Reference<XAccessible> xAcc = getAccessibleChild( nChildIndex );
+    uno::Reference<XAccessibleContext> xContext;
+    if( xAcc.is() )
+        xContext = xAcc->getAccessibleContext();
+    if( xContext.is() )
+    {
+        if( xContext->getAccessibleRole() == AccessibleRole::PARAGRAPH )
+        {
+            uno::Reference< css::accessibility::XAccessibleText >
+                xText(xAcc, uno::UNO_QUERY);
+            if( xText.is() )
+            {
+                if( xText->getSelectionStart() >= 0 ) return true;
+            }
+        }
+    }
+    return false;
+}
+
+void SAL_CALL ScAccessibleEditObject::clearAccessibleSelection(  )
+{
+}
+
+void SAL_CALL ScAccessibleEditObject::selectAllAccessibleChildren(  )
+{
+}
+
+sal_Int32 SAL_CALL ScAccessibleEditObject::getSelectedAccessibleChildCount()
+{
+    sal_Int32 nCount = 0;
+    sal_Int32 TotalCount = getAccessibleChildCount();
+    for( sal_Int32 i = 0; i < TotalCount; i++ )
+        if( isAccessibleChildSelected(i) ) nCount++;
+    return nCount;
+}
+
+uno::Reference<XAccessible> SAL_CALL ScAccessibleEditObject::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex )
+{
+    if ( nSelectedChildIndex > getSelectedAccessibleChildCount() )
+        throw IndexOutOfBoundsException();
+    sal_Int32 i1, i2;
+    for( i1 = 0, i2 = 0; i1 < getAccessibleChildCount(); i1++ )
+        if( isAccessibleChildSelected(i1) )
+        {
+            if( i2 == nSelectedChildIndex )
+                return getAccessibleChild( i1 );
+            i2++;
+        }
+    return uno::Reference<XAccessible>();
+}
+
+void SAL_CALL ScAccessibleEditObject::deselectAccessibleChild(
+                                                            sal_Int32 )
+{
+}
+
+uno::Reference< XAccessibleRelationSet > ScAccessibleEditObject::getAccessibleRelationSet(  )
+{
+    SolarMutexGuard aGuard;
+    vcl::Window* pWindow = mpWindow;
+    rtl::Reference<utl::AccessibleRelationSetHelper> rRelationSet = new utl::AccessibleRelationSetHelper;
+    if ( pWindow )
+    {
+        vcl::Window *pLabeledBy = pWindow->GetAccessibleRelationLabeledBy();
+        if ( pLabeledBy && pLabeledBy != pWindow )
+        {
+            uno::Sequence< uno::Reference< uno::XInterface > > aSequence { pLabeledBy->GetAccessible() };
+            rRelationSet->AddRelation( AccessibleRelation( AccessibleRelationType::LABELED_BY, aSequence ) );
+        }
+        vcl::Window* pMemberOf = pWindow->GetAccessibleRelationMemberOf();
+        if ( pMemberOf && pMemberOf != pWindow )
+        {
+            uno::Sequence< uno::Reference< uno::XInterface > > aSequence { pMemberOf->GetAccessible() };
+            rRelationSet->AddRelation( AccessibleRelation( AccessibleRelationType::MEMBER_OF, aSequence ) );
+        }
+        return rRelationSet;
+    }
+    return uno::Reference< XAccessibleRelationSet >();
+}
+
+tools::Rectangle ScAccessibleEditControlObject::GetBoundingBoxOnScreen() const
+{
+    tools::Rectangle aScreenBounds;
+
+    if (m_pController && m_pController->GetDrawingArea())
+    {
+        aScreenBounds = tools::Rectangle(m_pController->GetDrawingArea()->get_accessible_location_on_screen(),
+                                         m_pController->GetOutputSizePixel());
+    }
+
+    return aScreenBounds;
+}
+
+tools::Rectangle ScAccessibleEditControlObject::GetBoundingBox() const
+{
+    tools::Rectangle aBounds( GetBoundingBoxOnScreen() );
+
+    uno::Reference< XAccessibleContext > xContext(const_cast<ScAccessibleEditControlObject*>(this)->getAccessibleContext());
+    if ( xContext.is() )
+    {
+        uno::Reference< XAccessible > xParent( xContext->getAccessibleParent() );
+        if ( xParent.is() )
+        {
+            uno::Reference< XAccessibleComponent > xParentComponent( xParent->getAccessibleContext(), uno::UNO_QUERY );
+            if ( xParentComponent.is() )
+            {
+                Point aScreenLoc = aBounds.TopLeft();
+                awt::Point aParentScreenLoc = xParentComponent->getLocationOnScreen();
+                Point aPos( aScreenLoc.getX() - aParentScreenLoc.X, aScreenLoc.getY() - aParentScreenLoc.Y );
+                aBounds.SetPos( aPos );
+            }
+        }
+    }
+
+    return aBounds;
+}
+
+void SAL_CALL ScAccessibleEditControlObject::disposing()
+{
+    ScAccessibleEditObject::disposing();
+    m_pController = nullptr;
+}
+
+uno::Reference< XAccessibleRelationSet > ScAccessibleEditControlObject::getAccessibleRelationSet()
+{
+    SolarMutexGuard aGuard;
+    if (!m_pController || !m_pController->GetDrawingArea())
+        return uno::Reference< XAccessibleRelationSet >();
+    return m_pController->GetDrawingArea()->get_accessible_relation_set();
+}
+
+OutputDevice* ScAccessibleEditControlObject::GetOutputDeviceForView()
+{
+    if (!m_pController || !m_pController->GetDrawingArea())
+        return nullptr;
+    return &m_pController->GetDrawingArea()->get_ref_device();
+}
+
+ScAccessibleEditLineObject::ScAccessibleEditLineObject(ScTextWnd* pTextWnd)
+    : ScAccessibleEditControlObject(pTextWnd, ScAccessibleEditObject::EditLine)
+{
+    // tdf#141769 set this early so its always available, even before the on-demand
+    // editview is created
+    mpTextWnd = pTextWnd;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */