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| -rw-r--r-- | svtools/source/control/valueacc.cxx | 967 |
1 files changed, 967 insertions, 0 deletions
diff --git a/svtools/source/control/valueacc.cxx b/svtools/source/control/valueacc.cxx new file mode 100644 index 0000000000..2497d4513b --- /dev/null +++ b/svtools/source/control/valueacc.cxx @@ -0,0 +1,967 @@ +/* -*- 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 <vcl/svapp.hxx> +#include <vcl/settings.hxx> +#include <sal/log.hxx> +#include <tools/debug.hxx> +#include <comphelper/diagnose_ex.hxx> +#include <svtools/valueset.hxx> +#include "valueimp.hxx" +#include <comphelper/servicehelper.hxx> +#include <com/sun/star/accessibility/AccessibleEventId.hpp> +#include <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/AccessibleStateType.hpp> +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> +#include <com/sun/star/uno/RuntimeException.hpp> + +using namespace ::com::sun::star; + + +ValueSetItem::ValueSetItem( ValueSet& rParent ) + : mrParent(rParent) + , mpData(nullptr) + , mxAcc() + , mnId(0) + , meType(VALUESETITEM_NONE) + , mbVisible(true) +{ +} + + +ValueSetItem::~ValueSetItem() +{ + if( mxAcc.is() ) + { + mxAcc->ParentDestroyed(); + } +} + +uno::Reference< accessibility::XAccessible > ValueSetItem::GetAccessible( bool bIsTransientChildrenDisabled ) +{ + if( !mxAcc.is() ) + mxAcc = new ValueItemAcc( this, bIsTransientChildrenDisabled ); + + return mxAcc; +} + +ValueItemAcc::ValueItemAcc( ValueSetItem* pParent, bool bIsTransientChildrenDisabled ) : + mpParent( pParent ), + mbIsTransientChildrenDisabled( bIsTransientChildrenDisabled ) +{ +} + +ValueItemAcc::~ValueItemAcc() +{ +} + +void ValueItemAcc::ParentDestroyed() +{ + std::scoped_lock aGuard( maMutex ); + mpParent = nullptr; +} + +ValueItemAcc* ValueItemAcc::getImplementation( const uno::Reference< uno::XInterface >& rxData ) + noexcept +{ + return dynamic_cast<ValueItemAcc*>(rxData.get()); +} + + +uno::Reference< accessibility::XAccessibleContext > SAL_CALL ValueItemAcc::getAccessibleContext() +{ + return this; +} + + +sal_Int64 SAL_CALL ValueItemAcc::getAccessibleChildCount() +{ + return 0; +} + + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueItemAcc::getAccessibleChild( sal_Int64 ) +{ + throw lang::IndexOutOfBoundsException(); +} + + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueItemAcc::getAccessibleParent() +{ + const SolarMutexGuard aSolarGuard; + uno::Reference< accessibility::XAccessible > xRet; + + if( mpParent ) + xRet = mpParent->mrParent.mxAccessible; + + return xRet; +} + + +sal_Int64 SAL_CALL ValueItemAcc::getAccessibleIndexInParent() +{ + const SolarMutexGuard aSolarGuard; + // The index defaults to -1 to indicate the child does not belong to its + // parent. + sal_Int64 nIndexInParent = -1; + + if( mpParent ) + { + bool bDone = false; + + sal_uInt16 nCount = mpParent->mrParent.ImplGetVisibleItemCount(); + ValueSetItem* pItem; + for (sal_uInt16 i=0; i<nCount && !bDone; i++) + { + // Guard the retrieval of the i-th child with a try/catch block + // just in case the number of children changes in the meantime. + try + { + pItem = mpParent->mrParent.ImplGetItem(i); + } + catch (const lang::IndexOutOfBoundsException&) + { + pItem = nullptr; + } + + // Do not create an accessible object for the test. + if (pItem != nullptr && pItem->mxAcc.is()) + if (pItem->GetAccessible( mbIsTransientChildrenDisabled ).get() == this ) + { + nIndexInParent = i; + bDone = true; + } + } + } + + //if this valueset contain a none field(common value is default), then we should increase the real index and set the noitem index value equal 0. + if ( mpParent && ( (mpParent->mrParent.GetStyle() & WB_NONEFIELD) != 0 ) ) + { + ValueSetItem* pFirstItem = mpParent->mrParent.ImplGetItem (VALUESET_ITEM_NONEITEM); + if( pFirstItem && pFirstItem ->GetAccessible(mbIsTransientChildrenDisabled).get() == this ) + nIndexInParent = 0; + else + nIndexInParent++; + } + return nIndexInParent; +} + + +sal_Int16 SAL_CALL ValueItemAcc::getAccessibleRole() +{ + return accessibility::AccessibleRole::LIST_ITEM; +} + + +OUString SAL_CALL ValueItemAcc::getAccessibleDescription() +{ + return OUString(); +} + + +OUString SAL_CALL ValueItemAcc::getAccessibleName() +{ + const SolarMutexGuard aSolarGuard; + + if( mpParent ) + { + if (mpParent->maText.isEmpty()) + return "Item " + OUString::number(static_cast<sal_Int32>(mpParent->mnId)); + else + return mpParent->maText; + } + + return OUString(); +} + + +uno::Reference< accessibility::XAccessibleRelationSet > SAL_CALL ValueItemAcc::getAccessibleRelationSet() +{ + return uno::Reference< accessibility::XAccessibleRelationSet >(); +} + + +sal_Int64 SAL_CALL ValueItemAcc::getAccessibleStateSet() +{ + const SolarMutexGuard aSolarGuard; + sal_Int64 nStateSet = 0; + + if( mpParent ) + { + nStateSet |= accessibility::AccessibleStateType::ENABLED; + nStateSet |= accessibility::AccessibleStateType::SENSITIVE; + nStateSet |= accessibility::AccessibleStateType::SHOWING; + nStateSet |= accessibility::AccessibleStateType::VISIBLE; + if ( !mbIsTransientChildrenDisabled ) + nStateSet |= accessibility::AccessibleStateType::TRANSIENT; + + nStateSet |= accessibility::AccessibleStateType::SELECTABLE; + nStateSet |= accessibility::AccessibleStateType::FOCUSABLE; + + if( mpParent->mrParent.GetSelectedItemId() == mpParent->mnId ) + { + + nStateSet |= accessibility::AccessibleStateType::SELECTED; + if (mpParent->mrParent.HasChildFocus()) + nStateSet |= accessibility::AccessibleStateType::FOCUSED; + } + } + + return nStateSet; +} + + +lang::Locale SAL_CALL ValueItemAcc::getLocale() +{ + const SolarMutexGuard aSolarGuard; + uno::Reference< accessibility::XAccessible > xParent( getAccessibleParent() ); + lang::Locale aRet( "", "", "" ); + + if( xParent.is() ) + { + uno::Reference< accessibility::XAccessibleContext > xParentContext( xParent->getAccessibleContext() ); + + if( xParentContext.is() ) + aRet = xParentContext->getLocale(); + } + + return aRet; +} + + +void SAL_CALL ValueItemAcc::addAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener ) +{ + std::scoped_lock aGuard( maMutex ); + + if( !rxListener.is() ) + return; + + bool bFound = false; + + for (auto const& eventListener : mxEventListeners) + { + if(eventListener == rxListener) + { + bFound = true; + break; + } + } + + if (!bFound) + mxEventListeners.push_back( rxListener ); +} + + +void SAL_CALL ValueItemAcc::removeAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener ) +{ + std::scoped_lock aGuard( maMutex ); + + if( rxListener.is() ) + { + ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > >::iterator aIter = + std::find(mxEventListeners.begin(), mxEventListeners.end(), rxListener); + + if (aIter != mxEventListeners.end()) + mxEventListeners.erase(aIter); + } +} + + +sal_Bool SAL_CALL ValueItemAcc::containsPoint( const awt::Point& aPoint ) +{ + const awt::Rectangle aRect( getBounds() ); + const Point aSize( aRect.Width, aRect.Height ); + const Point aNullPoint, aTestPoint( aPoint.X, aPoint.Y ); + + return tools::Rectangle( aNullPoint, aSize ).Contains( aTestPoint ); +} + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueItemAcc::getAccessibleAtPoint( const awt::Point& ) +{ + uno::Reference< accessibility::XAccessible > xRet; + return xRet; +} + +awt::Rectangle SAL_CALL ValueItemAcc::getBounds() +{ + const SolarMutexGuard aSolarGuard; + awt::Rectangle aRet; + + if( mpParent ) + { + tools::Rectangle aRect( mpParent->mrParent.GetItemRect(mpParent->mnId) ); + tools::Rectangle aParentRect( Point(), mpParent->mrParent.GetOutputSizePixel() ); + + aRect.Intersection( aParentRect ); + + aRet.X = aRect.Left(); + aRet.Y = aRect.Top(); + aRet.Width = aRect.GetWidth(); + aRet.Height = aRect.GetHeight(); + } + + return aRet; +} + +awt::Point SAL_CALL ValueItemAcc::getLocation() +{ + const awt::Rectangle aRect( getBounds() ); + awt::Point aRet; + + aRet.X = aRect.X; + aRet.Y = aRect.Y; + + return aRet; +} + +awt::Point SAL_CALL ValueItemAcc::getLocationOnScreen() +{ + const SolarMutexGuard aSolarGuard; + awt::Point aRet; + + if( mpParent ) + { + const Point aPos = mpParent->mrParent.GetItemRect(mpParent->mnId).TopLeft(); + const Point aScreenPos(mpParent->mrParent.GetDrawingArea()->get_accessible_location_on_screen()); + + aRet.X = aPos.X() + aScreenPos.X(); + aRet.Y = aPos.Y() + aScreenPos.Y(); + } + + return aRet; +} + +awt::Size SAL_CALL ValueItemAcc::getSize() +{ + const awt::Rectangle aRect( getBounds() ); + awt::Size aRet; + + aRet.Width = aRect.Width; + aRet.Height = aRect.Height; + + return aRet; +} + +void SAL_CALL ValueItemAcc::grabFocus() +{ + // nothing to do +} + +sal_Int32 SAL_CALL ValueItemAcc::getForeground( ) +{ + Color nColor = Application::GetSettings().GetStyleSettings().GetWindowTextColor(); + return static_cast<sal_Int32>(nColor); +} + +sal_Int32 SAL_CALL ValueItemAcc::getBackground( ) +{ + Color nColor; + if (mpParent && mpParent->meType == VALUESETITEM_COLOR) + nColor = mpParent->maColor; + else + nColor = Application::GetSettings().GetStyleSettings().GetWindowColor(); + return static_cast<sal_Int32>(nColor); +} + +void ValueItemAcc::FireAccessibleEvent( short nEventId, const uno::Any& rOldValue, const uno::Any& rNewValue ) +{ + if( !nEventId ) + return; + + ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > > aTmpListeners( mxEventListeners ); + accessibility::AccessibleEventObject aEvtObject; + + aEvtObject.EventId = nEventId; + aEvtObject.Source = getXWeak(); + aEvtObject.NewValue = rNewValue; + aEvtObject.OldValue = rOldValue; + + for (auto const& tmpListener : aTmpListeners) + { + tmpListener->notifyEvent( aEvtObject ); + } +} + +ValueSetAcc::ValueSetAcc( ValueSet* pParent ) : + mpParent( pParent ), + mbIsFocused(false) +{ +} + + +ValueSetAcc::~ValueSetAcc() +{ +} + + +void ValueSetAcc::FireAccessibleEvent( short nEventId, const uno::Any& rOldValue, const uno::Any& rNewValue ) +{ + if( !nEventId ) + return; + + ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > > aTmpListeners( mxEventListeners ); + accessibility::AccessibleEventObject aEvtObject; + + aEvtObject.EventId = nEventId; + aEvtObject.Source = getXWeak(); + aEvtObject.NewValue = rNewValue; + aEvtObject.OldValue = rOldValue; + aEvtObject.IndexHint = -1; + + for (auto const& tmpListener : aTmpListeners) + { + try + { + tmpListener->notifyEvent( aEvtObject ); + } + catch(const uno::Exception&) + { + } + } +} + +void ValueSetAcc::GetFocus() +{ + mbIsFocused = true; + + // Broadcast the state change. + css::uno::Any aOldState, aNewState; + aNewState <<= css::accessibility::AccessibleStateType::FOCUSED; + FireAccessibleEvent( + css::accessibility::AccessibleEventId::STATE_CHANGED, + aOldState, aNewState); +} + + +void ValueSetAcc::LoseFocus() +{ + mbIsFocused = false; + + // Broadcast the state change. + css::uno::Any aOldState, aNewState; + aOldState <<= css::accessibility::AccessibleStateType::FOCUSED; + FireAccessibleEvent( + css::accessibility::AccessibleEventId::STATE_CHANGED, + aOldState, aNewState); +} + + +uno::Reference< accessibility::XAccessibleContext > SAL_CALL ValueSetAcc::getAccessibleContext() +{ + // still allow retrieving a11y context when not disposed yet, but ValueSet is unset + ThrowIfDisposed(false); + return this; +} + + +sal_Int64 SAL_CALL ValueSetAcc::getAccessibleChildCount() +{ + const SolarMutexGuard aSolarGuard; + ThrowIfDisposed(); + + sal_Int64 nCount = mpParent->ImplGetVisibleItemCount(); + if (HasNoneField()) + nCount += 1; + return nCount; +} + + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getAccessibleChild( sal_Int64 i ) +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + + if (i < 0 || i >= getAccessibleChildCount()) + throw lang::IndexOutOfBoundsException(); + + ValueSetItem* pItem = getItem (sal::static_int_cast< sal_uInt16 >(i)); + + if( !pItem ) + throw lang::IndexOutOfBoundsException(); + + uno::Reference< accessibility::XAccessible > xRet = pItem->GetAccessible( false/*bIsTransientChildrenDisabled*/ ); + return xRet; +} + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getAccessibleParent() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + return mpParent->GetDrawingArea()->get_accessible_parent(); +} + +sal_Int64 SAL_CALL ValueSetAcc::getAccessibleIndexInParent() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + + // -1 for child not found/no parent (according to specification) + sal_Int64 nRet = -1; + + uno::Reference<accessibility::XAccessible> xParent(getAccessibleParent()); + if (!xParent) + return nRet; + + try + { + uno::Reference<accessibility::XAccessibleContext> xParentContext(xParent->getAccessibleContext()); + + // iterate over parent's children and search for this object + if ( xParentContext.is() ) + { + sal_Int64 nChildCount = xParentContext->getAccessibleChildCount(); + for ( sal_Int64 nChild = 0; ( nChild < nChildCount ) && ( -1 == nRet ); ++nChild ) + { + uno::Reference<XAccessible> xChild(xParentContext->getAccessibleChild(nChild)); + if ( xChild.get() == this ) + nRet = nChild; + } + } + } + catch (const uno::Exception&) + { + TOOLS_WARN_EXCEPTION( "svtools", "ValueSetAcc::getAccessibleIndexInParent" ); + } + + return nRet; +} + +sal_Int16 SAL_CALL ValueSetAcc::getAccessibleRole() +{ + ThrowIfDisposed(); + return accessibility::AccessibleRole::LIST; +} + + +OUString SAL_CALL ValueSetAcc::getAccessibleDescription() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + OUString aRet; + + if (mpParent) + { + aRet = mpParent->GetAccessibleDescription(); + } + + return aRet; +} + + +OUString SAL_CALL ValueSetAcc::getAccessibleName() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + OUString aRet; + + if (mpParent) + { + aRet = mpParent->GetAccessibleName(); + } + + return aRet; +} + +uno::Reference< accessibility::XAccessibleRelationSet > SAL_CALL ValueSetAcc::getAccessibleRelationSet() +{ + ThrowIfDisposed(); + SolarMutexGuard g; + return mpParent->GetDrawingArea()->get_accessible_relation_set(); +} + +sal_Int64 SAL_CALL ValueSetAcc::getAccessibleStateSet() +{ + ThrowIfDisposed(); + sal_Int64 nStateSet = 0; + + // Set some states. + nStateSet |= accessibility::AccessibleStateType::ENABLED; + nStateSet |= accessibility::AccessibleStateType::SENSITIVE; + nStateSet |= accessibility::AccessibleStateType::SHOWING; + nStateSet |= accessibility::AccessibleStateType::VISIBLE; + nStateSet |= accessibility::AccessibleStateType::MANAGES_DESCENDANTS; + nStateSet |= accessibility::AccessibleStateType::FOCUSABLE; + if (mbIsFocused) + nStateSet |= accessibility::AccessibleStateType::FOCUSED; + + return nStateSet; +} + + +lang::Locale SAL_CALL ValueSetAcc::getLocale() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + uno::Reference< accessibility::XAccessible > xParent( getAccessibleParent() ); + lang::Locale aRet( "", "", "" ); + + if( xParent.is() ) + { + uno::Reference< accessibility::XAccessibleContext > xParentContext( xParent->getAccessibleContext() ); + + if( xParentContext.is() ) + aRet = xParentContext->getLocale (); + } + + return aRet; +} + + +void SAL_CALL ValueSetAcc::addAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener ) +{ + ThrowIfDisposed(false); + std::unique_lock aGuard (m_aMutex); + + if( !rxListener.is() ) + return; + + bool bFound = false; + + for (auto const& eventListener : mxEventListeners) + { + if(eventListener == rxListener) + { + bFound = true; + break; + } + } + + if (!bFound) + mxEventListeners.push_back( rxListener ); +} + + +void SAL_CALL ValueSetAcc::removeAccessibleEventListener( const uno::Reference< accessibility::XAccessibleEventListener >& rxListener ) +{ + ThrowIfDisposed(false); + std::unique_lock aGuard (m_aMutex); + + if( rxListener.is() ) + { + ::std::vector< uno::Reference< accessibility::XAccessibleEventListener > >::iterator aIter = + std::find(mxEventListeners.begin(), mxEventListeners.end(), rxListener); + + if (aIter != mxEventListeners.end()) + mxEventListeners.erase(aIter); + } +} + + +sal_Bool SAL_CALL ValueSetAcc::containsPoint( const awt::Point& aPoint ) +{ + ThrowIfDisposed(); + const awt::Rectangle aRect( getBounds() ); + const Point aSize( aRect.Width, aRect.Height ); + const Point aNullPoint, aTestPoint( aPoint.X, aPoint.Y ); + + return tools::Rectangle( aNullPoint, aSize ).Contains( aTestPoint ); +} + + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getAccessibleAtPoint( const awt::Point& aPoint ) +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + const sal_uInt16 nItemId = mpParent->GetItemId( Point( aPoint.X, aPoint.Y ) ); + uno::Reference< accessibility::XAccessible > xRet; + + if ( nItemId ) + { + const size_t nItemPos = mpParent->GetItemPos( nItemId ); + + if( VALUESET_ITEM_NONEITEM != nItemPos ) + { + ValueSetItem *const pItem = mpParent->mItemList[nItemPos].get(); + xRet = pItem->GetAccessible( false/*bIsTransientChildrenDisabled*/ ); + } + } + + return xRet; +} + + +awt::Rectangle SAL_CALL ValueSetAcc::getBounds() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + const Point aOutPos; + const Size aOutSize( mpParent->GetOutputSizePixel() ); + awt::Rectangle aRet; + + aRet.X = aOutPos.X(); + aRet.Y = aOutPos.Y(); + aRet.Width = aOutSize.Width(); + aRet.Height = aOutSize.Height(); + + return aRet; +} + +awt::Point SAL_CALL ValueSetAcc::getLocation() +{ + ThrowIfDisposed(); + const awt::Rectangle aRect( getBounds() ); + awt::Point aRet; + + aRet.X = aRect.X; + aRet.Y = aRect.Y; + + return aRet; +} + +awt::Point SAL_CALL ValueSetAcc::getLocationOnScreen() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + awt::Point aScreenLoc(0, 0); + + uno::Reference<accessibility::XAccessible> xParent(getAccessibleParent()); + if (xParent) + { + uno::Reference<accessibility::XAccessibleContext> xParentContext(xParent->getAccessibleContext()); + uno::Reference<accessibility::XAccessibleComponent> xParentComponent(xParentContext, css::uno::UNO_QUERY); + OSL_ENSURE( xParentComponent.is(), "ValueSetAcc::getLocationOnScreen: no parent component!" ); + if ( xParentComponent.is() ) + { + awt::Point aParentScreenLoc( xParentComponent->getLocationOnScreen() ); + awt::Point aOwnRelativeLoc( getLocation() ); + aScreenLoc.X = aParentScreenLoc.X + aOwnRelativeLoc.X; + aScreenLoc.Y = aParentScreenLoc.Y + aOwnRelativeLoc.Y; + } + } + + return aScreenLoc; +} + +awt::Size SAL_CALL ValueSetAcc::getSize() +{ + ThrowIfDisposed(); + const awt::Rectangle aRect( getBounds() ); + awt::Size aRet; + + aRet.Width = aRect.Width; + aRet.Height = aRect.Height; + + return aRet; +} + +void SAL_CALL ValueSetAcc::grabFocus() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + mpParent->GrabFocus(); +} + +sal_Int32 SAL_CALL ValueSetAcc::getForeground( ) +{ + ThrowIfDisposed(); + Color nColor = Application::GetSettings().GetStyleSettings().GetWindowTextColor(); + return static_cast<sal_Int32>(nColor); +} + +sal_Int32 SAL_CALL ValueSetAcc::getBackground( ) +{ + ThrowIfDisposed(); + Color nColor = Application::GetSettings().GetStyleSettings().GetWindowColor(); + return static_cast<sal_Int32>(nColor); +} + +void SAL_CALL ValueSetAcc::selectAccessibleChild( sal_Int64 nChildIndex ) +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + + if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount()) + throw lang::IndexOutOfBoundsException(); + + ValueSetItem* pItem = getItem (sal::static_int_cast< sal_uInt16 >(nChildIndex)); + + if(pItem == nullptr) + throw lang::IndexOutOfBoundsException(); + + mpParent->SelectItem( pItem->mnId ); +} + + +sal_Bool SAL_CALL ValueSetAcc::isAccessibleChildSelected( sal_Int64 nChildIndex ) +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + + if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount()) + throw lang::IndexOutOfBoundsException(); + + ValueSetItem* pItem = getItem (sal::static_int_cast< sal_uInt16 >(nChildIndex)); + + if (pItem == nullptr) + throw lang::IndexOutOfBoundsException(); + + bool bRet = mpParent->IsItemSelected( pItem->mnId ); + return bRet; +} + + +void SAL_CALL ValueSetAcc::clearAccessibleSelection() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + mpParent->SetNoSelection(); +} + + +void SAL_CALL ValueSetAcc::selectAllAccessibleChildren() +{ + ThrowIfDisposed(); + // unsupported due to single selection only +} + + +sal_Int64 SAL_CALL ValueSetAcc::getSelectedAccessibleChildCount() +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + sal_Int64 nRet = 0; + + for( sal_uInt16 i = 0, nCount = getItemCount(); i < nCount; i++ ) + { + ValueSetItem* pItem = getItem (i); + + if( pItem && mpParent->IsItemSelected( pItem->mnId ) ) + ++nRet; + } + + return nRet; +} + + +uno::Reference< accessibility::XAccessible > SAL_CALL ValueSetAcc::getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex ) +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + uno::Reference< accessibility::XAccessible > xRet; + + for( sal_uInt16 i = 0, nCount = getItemCount(), nSel = 0; ( i < nCount ) && !xRet.is(); i++ ) + { + ValueSetItem* pItem = getItem(i); + + if( pItem && mpParent->IsItemSelected( pItem->mnId ) && ( nSelectedChildIndex == static_cast< sal_Int64 >( nSel++ ) ) ) + xRet = pItem->GetAccessible( false/*bIsTransientChildrenDisabled*/ ); + } + + return xRet; +} + + +void SAL_CALL ValueSetAcc::deselectAccessibleChild( sal_Int64 nChildIndex ) +{ + ThrowIfDisposed(); + const SolarMutexGuard aSolarGuard; + + if (nChildIndex < 0 || nChildIndex >= getAccessibleChildCount()) + throw lang::IndexOutOfBoundsException(); + + // Because of the single selection we can reset the whole selection when + // the specified child is currently selected. + if (isAccessibleChildSelected(nChildIndex)) + mpParent->SetNoSelection(); +} + +void ValueSetAcc::Invalidate() +{ + mpParent = nullptr; +} + +void ValueSetAcc::disposing(std::unique_lock<std::mutex>& rGuard) +{ + // Make a copy of the list and clear the original. + ::std::vector<uno::Reference<accessibility::XAccessibleEventListener> > aListenerListCopy = std::move(mxEventListeners); + + if (aListenerListCopy.empty()) + return; + + rGuard.unlock(); + // Inform all listeners that this objects is disposing. + lang::EventObject aEvent (static_cast<accessibility::XAccessible*>(this)); + for (auto const& listenerCopy : aListenerListCopy) + { + try + { + listenerCopy->disposing (aEvent); + } + catch(const uno::Exception&) + { + // Ignore exceptions. + } + } +} + + +sal_uInt16 ValueSetAcc::getItemCount() const +{ + sal_uInt16 nCount = mpParent->ImplGetVisibleItemCount(); + // When the None-Item is visible then increase the number of items by + // one. + if (HasNoneField()) + nCount += 1; + return nCount; +} + +ValueSetItem* ValueSetAcc::getItem (sal_uInt16 nIndex) const +{ + ValueSetItem* pItem = nullptr; + + if (HasNoneField()) + { + if (nIndex == 0) + // When present the first item is the then always visible none field. + pItem = mpParent->ImplGetItem (VALUESET_ITEM_NONEITEM); + else + // Shift down the index to compensate for the none field. + nIndex -= 1; + } + if (pItem == nullptr) + pItem = mpParent->ImplGetItem (nIndex); + + return pItem; +} + + +void ValueSetAcc::ThrowIfDisposed(bool bCheckParent) +{ + if (m_bDisposed) + { + SAL_WARN("svx", "Calling disposed object. Throwing exception:"); + throw lang::DisposedException ( + "object has been already disposed", + getXWeak()); + } + + if (bCheckParent && !mpParent) + { + assert(false && "ValueSetAcc not disposed but mpParent == NULL"); + throw css::uno::RuntimeException("ValueSetAcc not disposed but mpParent == NULL"); + } +} + +bool ValueSetAcc::HasNoneField() const +{ + assert(mpParent && "ValueSetAcc::HasNoneField called with mpParent==NULL"); + return ((mpParent->GetStyle() & WB_NONEFIELD) != 0); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |