/* -*- 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace ::com::sun::star; using namespace ::com::sun::star::accessibility; const sal_uInt8 MAX_AREAS = 3; ScAccessiblePageHeader::ScAccessiblePageHeader( const css::uno::Reference& rxParent, ScPreviewShell* pViewShell, bool bHeader, sal_Int32 nIndex ) : ScAccessibleContextBase( rxParent, bHeader ? AccessibleRole::HEADER : AccessibleRole::FOOTER ), mpViewShell( pViewShell ), mnIndex( nIndex ), mbHeader( bHeader ), maAreas(MAX_AREAS, rtl::Reference()), mnChildCount(-1) { if (mpViewShell) mpViewShell->AddAccessibilityObject(*this); } ScAccessiblePageHeader::~ScAccessiblePageHeader() { if (!ScAccessibleContextBase::IsDefunc() && !rBHelper.bInDispose) { // increment refcount to prevent double call off dtor osl_atomic_increment( &m_refCount ); dispose(); } } void SAL_CALL ScAccessiblePageHeader::disposing() { SolarMutexGuard aGuard; if (mpViewShell) { mpViewShell->RemoveAccessibilityObject(*this); mpViewShell = nullptr; } for (auto & i : maAreas) { if (i.is()) { i->dispose(); i.clear(); } } ScAccessibleContextBase::disposing(); } //===== SfxListener ===================================================== void ScAccessiblePageHeader::Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) { // only notify if child exist, otherwise it is not necessary if (rHint.GetId() == SfxHintId::ScDataChanged) { std::vector> aOldAreas(maAreas); mnChildCount = -1; getAccessibleChildCount(); for (sal_uInt8 i = 0; i < MAX_AREAS; ++i) { if ((aOldAreas[i].is() && maAreas[i].is() && !ScGlobal::EETextObjEqual(aOldAreas[i]->GetEditTextObject(), maAreas[i]->GetEditTextObject())) || (aOldAreas[i].is() && !maAreas[i].is()) || (!aOldAreas[i].is() && maAreas[i].is())) { if (aOldAreas[i].is() && aOldAreas[i]->GetEditTextObject()) { AccessibleEventObject aEvent; aEvent.EventId = AccessibleEventId::CHILD; aEvent.Source = uno::Reference< XAccessibleContext >(this); aEvent.OldValue <<= uno::Reference(aOldAreas[i].get()); CommitChange(aEvent); // child gone - event aOldAreas[i]->dispose(); } if (maAreas[i].is() && maAreas[i]->GetEditTextObject()) { AccessibleEventObject aEvent; aEvent.EventId = AccessibleEventId::CHILD; aEvent.Source = uno::Reference< XAccessibleContext >(this); aEvent.NewValue <<= uno::Reference(maAreas[i].get()); CommitChange(aEvent); // new child - event } } } } else if (rHint.GetId() == SfxHintId::ScAccVisAreaChanged) { AccessibleEventObject aEvent; aEvent.EventId = AccessibleEventId::VISIBLE_DATA_CHANGED; aEvent.Source = uno::Reference< XAccessibleContext >(this); CommitChange(aEvent); } ScAccessibleContextBase::Notify(rBC, rHint); } //===== XAccessibleComponent ============================================ uno::Reference< XAccessible > SAL_CALL ScAccessiblePageHeader::getAccessibleAtPoint( const awt::Point& aPoint ) { uno::Reference xRet; if (containsPoint(aPoint)) { SolarMutexGuard aGuard; IsObjectValid(); sal_Int32 nCount(getAccessibleChildCount()); // fill the areas if (nCount) { // return the first with content, because they have all the same Bounding Box sal_uInt8 i(0); while(!xRet.is() && i < MAX_AREAS) { if (maAreas[i].is()) xRet = maAreas[i].get(); else ++i; } } } return xRet; } void SAL_CALL ScAccessiblePageHeader::grabFocus() { SolarMutexGuard aGuard; IsObjectValid(); if (getAccessibleParent().is()) { uno::Reference xAccessibleComponent(getAccessibleParent()->getAccessibleContext(), uno::UNO_QUERY); if (xAccessibleComponent.is()) xAccessibleComponent->grabFocus(); } } //===== XAccessibleContext ============================================== sal_Int32 SAL_CALL ScAccessiblePageHeader::getAccessibleChildCount() { SolarMutexGuard aGuard; IsObjectValid(); if((mnChildCount < 0) && mpViewShell) { mnChildCount = 0; ScDocument& rDoc = mpViewShell->GetDocument(); // find out how many regions (left,center, right) are with content SfxStyleSheetBase* pStyle = rDoc.GetStyleSheetPool()->Find(rDoc.GetPageStyle(mpViewShell->GetLocationData().GetPrintTab()), SfxStyleFamily::Page); if (pStyle) { sal_uInt16 nPageWhichId(0); if (mbHeader) nPageWhichId = mpViewShell->GetLocationData().IsHeaderLeft() ? ATTR_PAGE_HEADERLEFT : ATTR_PAGE_HEADERRIGHT; else nPageWhichId = mpViewShell->GetLocationData().IsFooterLeft() ? ATTR_PAGE_FOOTERLEFT : ATTR_PAGE_FOOTERRIGHT; const ScPageHFItem& rPageItem = static_cast(pStyle->GetItemSet().Get(nPageWhichId)); AddChild(rPageItem.GetLeftArea(), 0, SvxAdjust::Left); AddChild(rPageItem.GetCenterArea(), 1, SvxAdjust::Center); AddChild(rPageItem.GetRightArea(), 2, SvxAdjust::Right); } } return mnChildCount; } uno::Reference< XAccessible > SAL_CALL ScAccessiblePageHeader::getAccessibleChild( sal_Int32 nIndex ) { SolarMutexGuard aGuard; IsObjectValid(); uno::Reference xRet; if(mnChildCount < 0) getAccessibleChildCount(); if (nIndex >= 0) for (const auto& rxArea : maAreas) { if (rxArea.is()) { if (nIndex == 0) { xRet = rxArea.get(); break; } else --nIndex; } } if ( !xRet.is() ) throw lang::IndexOutOfBoundsException(); return xRet; } sal_Int32 SAL_CALL ScAccessiblePageHeader::getAccessibleIndexInParent() { return mnIndex; } uno::Reference< XAccessibleStateSet > SAL_CALL ScAccessiblePageHeader::getAccessibleStateSet() { SolarMutexGuard aGuard; uno::Reference xParentStates; if (getAccessibleParent().is()) { uno::Reference xParentContext = getAccessibleParent()->getAccessibleContext(); xParentStates = xParentContext->getAccessibleStateSet(); } utl::AccessibleStateSetHelper* pStateSet = new utl::AccessibleStateSetHelper(); if (IsDefunc(xParentStates)) pStateSet->AddState(AccessibleStateType::DEFUNC); else { pStateSet->AddState(AccessibleStateType::ENABLED); pStateSet->AddState(AccessibleStateType::OPAQUE); if (isShowing()) pStateSet->AddState(AccessibleStateType::SHOWING); if (isVisible()) pStateSet->AddState(AccessibleStateType::VISIBLE); } return pStateSet; } //===== XServiceInfo ==================================================== OUString SAL_CALL ScAccessiblePageHeader::getImplementationName() { return "ScAccessiblePageHeader"; } uno::Sequence SAL_CALL ScAccessiblePageHeader::getSupportedServiceNames() { uno::Sequence< OUString > aSequence = ScAccessibleContextBase::getSupportedServiceNames(); sal_Int32 nOldSize(aSequence.getLength()); aSequence.realloc(nOldSize + 1); aSequence[nOldSize] = "com.sun.star.text.AccessibleHeaderFooterView"; return aSequence; } //==== internal ========================================================= OUString ScAccessiblePageHeader::createAccessibleDescription() { OUString sDesc(mbHeader ? OUString(STR_ACC_HEADER_DESCR) : OUString(STR_ACC_FOOTER_DESCR)); return sDesc.replaceFirst("%1", ScResId(SCSTR_UNKNOWN)); } OUString ScAccessiblePageHeader::createAccessibleName() { OUString sName(ScResId(mbHeader ? STR_ACC_HEADER_NAME : STR_ACC_FOOTER_NAME)); return sName.replaceFirst("%1", ScResId(SCSTR_UNKNOWN)); } tools::Rectangle ScAccessiblePageHeader::GetBoundingBoxOnScreen() const { tools::Rectangle aCellRect(GetBoundingBox()); if (mpViewShell) { vcl::Window* pWindow = mpViewShell->GetWindow(); if (pWindow) { tools::Rectangle aRect = pWindow->GetWindowExtentsRelative(nullptr); aCellRect.setX(aCellRect.getX() + aRect.getX()); aCellRect.setY(aCellRect.getY() + aRect.getY()); } } return aCellRect; } tools::Rectangle ScAccessiblePageHeader::GetBoundingBox() const { tools::Rectangle aRect; if (mpViewShell) { const ScPreviewLocationData& rData = mpViewShell->GetLocationData(); if ( mbHeader ) rData.GetHeaderPosition( aRect ); else rData.GetFooterPosition( aRect ); // the Rectangle could contain negative coordinates so it should be clipped tools::Rectangle aClipRect(Point(0, 0), aRect.GetSize()); vcl::Window* pWindow = mpViewShell->GetWindow(); if (pWindow) aClipRect = pWindow->GetWindowExtentsRelative(pWindow->GetAccessibleParentWindow()); aRect = aClipRect.GetIntersection(aRect); } if (aRect.IsEmpty()) aRect.SetSize(Size(-1, -1)); return aRect; } bool ScAccessiblePageHeader::IsDefunc( const uno::Reference& rxParentStates ) { return ScAccessibleContextBase::IsDefunc() || (mpViewShell == nullptr) || !getAccessibleParent().is() || (rxParentStates.is() && rxParentStates->contains(AccessibleStateType::DEFUNC)); } void ScAccessiblePageHeader::AddChild(const EditTextObject* pArea, sal_uInt32 nIndex, SvxAdjust eAdjust) { if (pArea && (!pArea->GetText(0).isEmpty() || (pArea->GetParagraphCount() > 1))) { if (maAreas[nIndex].is()) { if (!ScGlobal::EETextObjEqual(maAreas[nIndex]->GetEditTextObject(), pArea)) { maAreas[nIndex] = new ScAccessiblePageHeaderArea(this, mpViewShell, pArea, eAdjust); } } else { maAreas[nIndex] = new ScAccessiblePageHeaderArea(this, mpViewShell, pArea, eAdjust); } ++mnChildCount; } else { maAreas[nIndex].clear(); } } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */