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Diffstat (limited to 'vcl/source/window/legacyaccessibility.cxx')
| -rw-r--r-- | vcl/source/window/legacyaccessibility.cxx | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/vcl/source/window/legacyaccessibility.cxx b/vcl/source/window/legacyaccessibility.cxx new file mode 100644 index 000000000..376d0d08a --- /dev/null +++ b/vcl/source/window/legacyaccessibility.cxx @@ -0,0 +1,242 @@ +/* -*- 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 <window.h> + +#include "dlgctrl.hxx" + +using namespace ::com::sun::star; + + +static vcl::Window* ImplGetLabelFor( vcl::Window* pFrameWindow, WindowType nMyType, vcl::Window* pLabel, sal_Unicode nAccel ) +{ + vcl::Window* pWindow = nullptr; + + if( nMyType == WindowType::FIXEDTEXT || + nMyType == WindowType::FIXEDLINE || + nMyType == WindowType::GROUPBOX ) + { + // #i100833# MT 2010/02: Group box and fixed lines can also label a fixed text. + // See tools/options/print for example. + bool bThisIsAGroupControl = (nMyType == WindowType::GROUPBOX) || (nMyType == WindowType::FIXEDLINE); + // get index, form start and form end + sal_uInt16 nIndex=0, nFormStart=0, nFormEnd=0; + ::ImplFindDlgCtrlWindow( pFrameWindow, + pLabel, + nIndex, + nFormStart, + nFormEnd ); + if( nAccel ) + { + // find the accelerated window + pWindow = ::ImplFindAccelWindow( pFrameWindow, + nIndex, + nAccel, + nFormStart, + nFormEnd, + false ); + } + else + { + // find the next control; if that is a fixed text + // fixed line or group box, then return NULL + while( nIndex < nFormEnd ) + { + nIndex++; + vcl::Window* pSWindow = ::ImplGetChildWindow( pFrameWindow, + nIndex, + nIndex, + false ); + if( pSWindow && isVisibleInLayout(pSWindow) && ! (pSWindow->GetStyle() & WB_NOLABEL) ) + { + WindowType nType = pSWindow->GetType(); + if( nType != WindowType::FIXEDTEXT && + nType != WindowType::FIXEDLINE && + nType != WindowType::GROUPBOX ) + { + pWindow = pSWindow; + } + else if( bThisIsAGroupControl && ( nType == WindowType::FIXEDTEXT ) ) + { + pWindow = pSWindow; + } + break; + } + } + } + } + + return pWindow; +} + +namespace vcl { + +Window* Window::getLegacyNonLayoutAccessibleRelationLabelFor() const +{ + Window* pFrameWindow = ImplGetFrameWindow(); + + WinBits nFrameStyle = pFrameWindow->GetStyle(); + if( ! ( nFrameStyle & WB_DIALOGCONTROL ) + || ( nFrameStyle & WB_NODIALOGCONTROL ) + ) + return nullptr; + + sal_Unicode nAccel = getAccel( GetText() ); + + Window* pWindow = ImplGetLabelFor( pFrameWindow, GetType(), const_cast<Window*>(this), nAccel ); + if( ! pWindow && mpWindowImpl->mpRealParent ) + pWindow = ImplGetLabelFor( mpWindowImpl->mpRealParent, GetType(), const_cast<Window*>(this), nAccel ); + return pWindow; +} + +static Window* ImplGetLabeledBy( Window* pFrameWindow, WindowType nMyType, Window* pLabeled ) +{ + Window* pWindow = nullptr; + if ( (nMyType != WindowType::GROUPBOX) && (nMyType != WindowType::FIXEDLINE) ) + { + // search for a control that labels this window + // a label is considered the last fixed text, fixed line or group box + // that comes before this control; with the exception of push buttons + // which are labeled only if the fixed text, fixed line or group box + // is directly before the control + + // get form start and form end and index of this control + sal_uInt16 nIndex, nFormStart, nFormEnd; + Window* pSWindow = ::ImplFindDlgCtrlWindow( pFrameWindow, + pLabeled, + nIndex, + nFormStart, + nFormEnd ); + if( pSWindow && nIndex != nFormStart ) + { + if( nMyType == WindowType::PUSHBUTTON || + nMyType == WindowType::HELPBUTTON || + nMyType == WindowType::OKBUTTON || + nMyType == WindowType::CANCELBUTTON ) + { + nFormStart = nIndex-1; + } + for( sal_uInt16 nSearchIndex = nIndex-1; nSearchIndex >= nFormStart; nSearchIndex-- ) + { + sal_uInt16 nFoundIndex = 0; + pSWindow = ::ImplGetChildWindow( pFrameWindow, + nSearchIndex, + nFoundIndex, + false ); + if( pSWindow && isVisibleInLayout(pSWindow) && !(pSWindow->GetStyle() & WB_NOLABEL) ) + { + WindowType nType = pSWindow->GetType(); + if ( nType == WindowType::FIXEDTEXT || + nType == WindowType::FIXEDLINE || + nType == WindowType::GROUPBOX ) + { + // a fixed text can't be labelled by a fixed text. + if ( ( nMyType != WindowType::FIXEDTEXT ) || ( nType != WindowType::FIXEDTEXT ) ) + pWindow = pSWindow; + break; + } + } + if( nFoundIndex > nSearchIndex || nSearchIndex == 0 ) + break; + } + } + } + return pWindow; +} + +Window* Window::getLegacyNonLayoutAccessibleRelationLabeledBy() const +{ + Window* pFrameWindow = ImplGetFrameWindow(); + + // #i62723#, #104191# checkboxes and radiobuttons are not supposed to have labels + if( GetType() == WindowType::CHECKBOX || GetType() == WindowType::RADIOBUTTON ) + return nullptr; + +// if( ! ( GetType() == WindowType::FIXEDTEXT || +// GetType() == WindowType::FIXEDLINE || +// GetType() == WindowType::GROUPBOX ) ) + // #i100833# MT 2010/02: Group box and fixed lines can also label a fixed text. + // See tools/options/print for example. + + Window* pWindow = ImplGetLabeledBy( pFrameWindow, GetType(), const_cast<Window*>(this) ); + if( ! pWindow && mpWindowImpl->mpRealParent ) + pWindow = ImplGetLabeledBy( mpWindowImpl->mpRealParent, GetType(), const_cast<Window*>(this) ); + + return pWindow; +} + +Window* Window::getLegacyNonLayoutAccessibleRelationMemberOf() const +{ + Window* pWindow = nullptr; + Window* pFrameWindow = GetParent(); + if ( !pFrameWindow ) + { + pFrameWindow = ImplGetFrameWindow(); + } + // if( ! ( GetType() == WindowType::FIXEDTEXT || + if( !( GetType() == WindowType::FIXEDLINE || + GetType() == WindowType::GROUPBOX ) ) + { + // search for a control that makes member of this window + // it is considered the last fixed line or group box + // that comes before this control; with the exception of push buttons + // which are labeled only if the fixed line or group box + // is directly before the control + // get form start and form end and index of this control + sal_uInt16 nIndex, nFormStart, nFormEnd; + Window* pSWindow = ::ImplFindDlgCtrlWindow( pFrameWindow, + const_cast<Window*>(this), + nIndex, + nFormStart, + nFormEnd ); + if( pSWindow && nIndex != nFormStart ) + { + if( GetType() == WindowType::PUSHBUTTON || + GetType() == WindowType::HELPBUTTON || + GetType() == WindowType::OKBUTTON || + GetType() == WindowType::CANCELBUTTON ) + { + nFormStart = nIndex-1; + } + for( sal_uInt16 nSearchIndex = nIndex-1; nSearchIndex >= nFormStart; nSearchIndex-- ) + { + sal_uInt16 nFoundIndex = 0; + pSWindow = ::ImplGetChildWindow( pFrameWindow, + nSearchIndex, + nFoundIndex, + false ); + if( pSWindow && pSWindow->IsVisible() && + ( pSWindow->GetType() == WindowType::FIXEDLINE || + pSWindow->GetType() == WindowType::GROUPBOX ) ) + { + pWindow = pSWindow; + break; + } + if( nFoundIndex > nSearchIndex || nSearchIndex == 0 ) + break; + } + } + } + return pWindow; +} + +} /* namespace vcl */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |