270 lines
8 KiB
C++
270 lines
8 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 "atkwrapper.hxx"
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#include <com/sun/star/accessibility/XAccessibleAction.hpp>
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#include <com/sun/star/accessibility/XAccessibleKeyBinding.hpp>
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#include <com/sun/star/awt/Key.hpp>
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#include <com/sun/star/awt/KeyModifier.hpp>
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#include <rtl/strbuf.hxx>
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#include <algorithm>
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#include <map>
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using namespace ::com::sun::star;
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// FIXME
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static const gchar *
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getAsConst( const OString& rString )
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{
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static const int nMax = 10;
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static OString aUgly[nMax];
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static int nIdx = 0;
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nIdx = (nIdx + 1) % nMax;
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aUgly[nIdx] = rString;
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return aUgly[ nIdx ].getStr();
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}
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/// @throws uno::RuntimeException
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static css::uno::Reference<css::accessibility::XAccessibleAction>
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getAction( AtkAction *action )
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{
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AtkObjectWrapper *pWrap = ATK_OBJECT_WRAPPER( action );
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if( pWrap )
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{
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if( !pWrap->mpAction.is() )
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{
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pWrap->mpAction.set(pWrap->mpContext, css::uno::UNO_QUERY);
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}
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return pWrap->mpAction;
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}
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return css::uno::Reference<css::accessibility::XAccessibleAction>();
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}
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extern "C" {
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static gboolean
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action_wrapper_do_action (AtkAction *action,
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gint i)
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{
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try {
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css::uno::Reference<css::accessibility::XAccessibleAction> pAction
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= getAction( action );
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if( pAction.is() )
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return pAction->doAccessibleAction( i );
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}
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catch(const uno::Exception&) {
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g_warning( "Exception in doAccessibleAction()" );
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}
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return FALSE;
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}
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static gint
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action_wrapper_get_n_actions (AtkAction *action)
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{
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try {
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css::uno::Reference<css::accessibility::XAccessibleAction> pAction
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= getAction( action );
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if( pAction.is() )
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return pAction->getAccessibleActionCount();
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}
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catch(const uno::Exception&) {
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g_warning( "Exception in getAccessibleActionCount()" );
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}
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return 0;
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}
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static const gchar *
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action_wrapper_get_description (AtkAction *, gint)
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{
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// GAIL implement this only for cells
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g_warning( "Not implemented: get_description()" );
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return "";
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}
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static const gchar *
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action_wrapper_get_localized_name (AtkAction *, gint)
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{
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// GAIL doesn't implement this as well
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g_warning( "Not implemented: get_localized_name()" );
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return "";
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}
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static const gchar *
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action_wrapper_get_name (AtkAction *action,
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gint i)
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{
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static std::map< OUString, const gchar * > aNameMap {
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{ "click", "click" },
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{ "select", "click" } ,
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{ "togglePopup", "push" }
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};
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try {
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css::uno::Reference<css::accessibility::XAccessibleAction> pAction
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= getAction( action );
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if( pAction.is() )
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{
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std::map< OUString, const gchar * >::iterator iter;
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OUString aDesc( pAction->getAccessibleActionDescription( i ) );
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iter = aNameMap.find( aDesc );
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if( iter != aNameMap.end() )
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return iter->second;
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std::pair< const OUString, const gchar * > aNewVal( aDesc,
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g_strdup( OUStringToConstGChar(aDesc) ) );
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if( aNameMap.insert( aNewVal ).second )
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return aNewVal.second;
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}
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}
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catch(const uno::Exception&) {
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g_warning( "Exception in getAccessibleActionDescription()" );
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}
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return "";
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}
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/*
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* GNOME Expects a string in the format:
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*
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* <mnemonic>;<full-path>;<accelerator>
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*
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* The keybindings in <full-path> should be separated by ":"
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*/
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static void
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appendKeyStrokes(OStringBuffer& rBuffer, const uno::Sequence< awt::KeyStroke >& rKeyStrokes)
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{
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for( const auto& rKeyStroke : rKeyStrokes )
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{
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if( rKeyStroke.Modifiers & awt::KeyModifier::SHIFT )
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rBuffer.append("<Shift>");
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if( rKeyStroke.Modifiers & awt::KeyModifier::MOD1 )
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rBuffer.append("<Control>");
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if( rKeyStroke.Modifiers & awt::KeyModifier::MOD2 )
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rBuffer.append("<Alt>");
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if( ( rKeyStroke.KeyCode >= awt::Key::A ) && ( rKeyStroke.KeyCode <= awt::Key::Z ) )
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rBuffer.append( static_cast<char>( 'a' + ( rKeyStroke.KeyCode - awt::Key::A ) ) );
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else
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{
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char c = '\0';
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switch( rKeyStroke.KeyCode )
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{
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case awt::Key::TAB: c = '\t'; break;
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case awt::Key::SPACE: c = ' '; break;
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case awt::Key::ADD: c = '+'; break;
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case awt::Key::SUBTRACT: c = '-'; break;
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case awt::Key::MULTIPLY: c = '*'; break;
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case awt::Key::DIVIDE: c = '/'; break;
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case awt::Key::POINT: c = '.'; break;
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case awt::Key::COMMA: c = ','; break;
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case awt::Key::LESS: c = '<'; break;
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case awt::Key::GREATER: c = '>'; break;
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case awt::Key::EQUAL: c = '='; break;
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case 0:
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break;
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default:
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g_warning( "Unmapped KeyCode: %d", rKeyStroke.KeyCode );
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break;
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}
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if( c != '\0' )
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rBuffer.append( c );
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else
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{
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// The KeyCode approach did not work, probably a non ascii character
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// let's hope that there is a character given in KeyChar.
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rBuffer.append(OUStringToOString(OUStringChar(rKeyStroke.KeyChar), RTL_TEXTENCODING_UTF8));
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}
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}
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}
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}
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static const gchar *
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action_wrapper_get_keybinding (AtkAction *action,
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gint i)
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{
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try {
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css::uno::Reference<css::accessibility::XAccessibleAction> pAction
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= getAction( action );
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if( pAction.is() )
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{
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uno::Reference< accessibility::XAccessibleKeyBinding > xBinding( pAction->getAccessibleActionKeyBinding( i ));
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if( xBinding.is() )
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{
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OStringBuffer aRet;
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sal_Int32 nmax = std::min( xBinding->getAccessibleKeyBindingCount(), sal_Int32(3) );
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for( sal_Int32 n = 0; n < nmax; n++ )
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{
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appendKeyStrokes( aRet, xBinding->getAccessibleKeyBinding( n ) );
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if( n < 2 )
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aRet.append( ';' );
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}
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// !! FIXME !! remember keystroke in wrapper object ?
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return getAsConst( aRet.makeStringAndClear() );
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}
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}
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}
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catch(const uno::Exception&) {
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g_warning( "Exception in get_keybinding()" );
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}
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return "";
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}
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static gboolean
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action_wrapper_set_description (AtkAction *, gint, const gchar *)
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{
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return FALSE;
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}
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} // extern "C"
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void
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actionIfaceInit (gpointer iface_, gpointer)
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{
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auto const iface = static_cast<AtkActionIface *>(iface_);
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g_return_if_fail (iface != nullptr);
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iface->do_action = action_wrapper_do_action;
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iface->get_n_actions = action_wrapper_get_n_actions;
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iface->get_description = action_wrapper_get_description;
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iface->get_keybinding = action_wrapper_get_keybinding;
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iface->get_name = action_wrapper_get_name;
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iface->get_localized_name = action_wrapper_get_localized_name;
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iface->set_description = action_wrapper_set_description;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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