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-rw-r--r--vcl/unx/gtk3/a11y/gtk3atkaction.cxx275
1 files changed, 275 insertions, 0 deletions
diff --git a/vcl/unx/gtk3/a11y/gtk3atkaction.cxx b/vcl/unx/gtk3/a11y/gtk3atkaction.cxx
new file mode 100644
index 000000000..fa9d09660
--- /dev/null
+++ b/vcl/unx/gtk3/a11y/gtk3atkaction.cxx
@@ -0,0 +1,275 @@
+/* -*- 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 "atkwrapper.hxx"
+
+#include <com/sun/star/accessibility/XAccessibleAction.hpp>
+#include <com/sun/star/accessibility/XAccessibleKeyBinding.hpp>
+
+#include <com/sun/star/awt/Key.hpp>
+#include <com/sun/star/awt/KeyModifier.hpp>
+
+#include <rtl/strbuf.hxx>
+#include <algorithm>
+#include <map>
+
+using namespace ::com::sun::star;
+
+// FIXME
+static const gchar *
+getAsConst( const OString& rString )
+{
+ static const int nMax = 10;
+ static OString aUgly[nMax];
+ static int nIdx = 0;
+ nIdx = (nIdx + 1) % nMax;
+ aUgly[nIdx] = rString;
+ return aUgly[ nIdx ].getStr();
+}
+
+/// @throws uno::RuntimeException
+static css::uno::Reference<css::accessibility::XAccessibleAction>
+ getAction( AtkAction *action )
+{
+ AtkObjectWrapper *pWrap = ATK_OBJECT_WRAPPER( action );
+
+ if( pWrap )
+ {
+ if( !pWrap->mpAction.is() )
+ {
+ pWrap->mpAction.set(pWrap->mpContext, css::uno::UNO_QUERY);
+ }
+
+ return pWrap->mpAction;
+ }
+
+ return css::uno::Reference<css::accessibility::XAccessibleAction>();
+}
+
+extern "C" {
+
+static gboolean
+action_wrapper_do_action (AtkAction *action,
+ gint i)
+{
+ try {
+ css::uno::Reference<css::accessibility::XAccessibleAction> pAction
+ = getAction( action );
+ if( pAction.is() )
+ return pAction->doAccessibleAction( i );
+ }
+ catch(const uno::Exception&) {
+ g_warning( "Exception in doAccessibleAction()" );
+ }
+
+ return FALSE;
+}
+
+static gint
+action_wrapper_get_n_actions (AtkAction *action)
+{
+ try {
+ css::uno::Reference<css::accessibility::XAccessibleAction> pAction
+ = getAction( action );
+ if( pAction.is() )
+ return pAction->getAccessibleActionCount();
+ }
+ catch(const uno::Exception&) {
+ g_warning( "Exception in getAccessibleActionCount()" );
+ }
+
+ return 0;
+}
+
+static const gchar *
+action_wrapper_get_description (AtkAction *, gint)
+{
+ // GAIL implement this only for cells
+ g_warning( "Not implemented: get_description()" );
+ return "";
+}
+
+static const gchar *
+action_wrapper_get_localized_name (AtkAction *, gint)
+{
+ // GAIL doesn't implement this as well
+ g_warning( "Not implemented: get_localized_name()" );
+ return "";
+}
+
+#define ACTION_NAME_PAIR( OOoName, AtkName ) \
+ std::pair< const OUString, const gchar * > ( OUString( OOoName ), AtkName )
+
+static const gchar *
+action_wrapper_get_name (AtkAction *action,
+ gint i)
+{
+ static std::map< OUString, const gchar * > aNameMap;
+
+ if( aNameMap.empty() )
+ {
+ aNameMap.insert( ACTION_NAME_PAIR( "click", "click" ) );
+ aNameMap.insert( ACTION_NAME_PAIR( "select", "click" ) );
+ aNameMap.insert( ACTION_NAME_PAIR( "togglePopup", "push" ) );
+ }
+
+ try {
+ css::uno::Reference<css::accessibility::XAccessibleAction> pAction
+ = getAction( action );
+ if( pAction.is() )
+ {
+ std::map< OUString, const gchar * >::iterator iter;
+
+ OUString aDesc( pAction->getAccessibleActionDescription( i ) );
+
+ iter = aNameMap.find( aDesc );
+ if( iter != aNameMap.end() )
+ return iter->second;
+
+ std::pair< const OUString, const gchar * > aNewVal( aDesc,
+ g_strdup( OUStringToConstGChar(aDesc) ) );
+
+ if( aNameMap.insert( aNewVal ).second )
+ return aNewVal.second;
+ }
+ }
+ catch(const uno::Exception&) {
+ g_warning( "Exception in getAccessibleActionDescription()" );
+ }
+
+ return "";
+}
+
+/*
+* GNOME Expects a string in the format:
+*
+* <mnemonic>;<full-path>;<accelerator>
+*
+* The keybindings in <full-path> should be separated by ":"
+*/
+
+static void
+appendKeyStrokes(OStringBuffer& rBuffer, const uno::Sequence< awt::KeyStroke >& rKeyStrokes)
+{
+ for( const auto& rKeyStroke : rKeyStrokes )
+ {
+ if( rKeyStroke.Modifiers & awt::KeyModifier::SHIFT )
+ rBuffer.append("<Shift>");
+ if( rKeyStroke.Modifiers & awt::KeyModifier::MOD1 )
+ rBuffer.append("<Control>");
+ if( rKeyStroke.Modifiers & awt::KeyModifier::MOD2 )
+ rBuffer.append("<Alt>");
+
+ if( ( rKeyStroke.KeyCode >= awt::Key::A ) && ( rKeyStroke.KeyCode <= awt::Key::Z ) )
+ rBuffer.append( static_cast<char>( 'a' + ( rKeyStroke.KeyCode - awt::Key::A ) ) );
+ else
+ {
+ char c = '\0';
+
+ switch( rKeyStroke.KeyCode )
+ {
+ case awt::Key::TAB: c = '\t'; break;
+ case awt::Key::SPACE: c = ' '; break;
+ case awt::Key::ADD: c = '+'; break;
+ case awt::Key::SUBTRACT: c = '-'; break;
+ case awt::Key::MULTIPLY: c = '*'; break;
+ case awt::Key::DIVIDE: c = '/'; break;
+ case awt::Key::POINT: c = '.'; break;
+ case awt::Key::COMMA: c = ','; break;
+ case awt::Key::LESS: c = '<'; break;
+ case awt::Key::GREATER: c = '>'; break;
+ case awt::Key::EQUAL: c = '='; break;
+ case 0:
+ break;
+ default:
+ g_warning( "Unmapped KeyCode: %d", rKeyStroke.KeyCode );
+ break;
+ }
+
+ if( c != '\0' )
+ rBuffer.append( c );
+ else
+ {
+ // The KeyCode approach did not work, probably a non ascii character
+ // let's hope that there is a character given in KeyChar.
+ rBuffer.append( OUStringToGChar( OUString( rKeyStroke.KeyChar ) ) );
+ }
+ }
+ }
+}
+
+static const gchar *
+action_wrapper_get_keybinding (AtkAction *action,
+ gint i)
+{
+ try {
+ css::uno::Reference<css::accessibility::XAccessibleAction> pAction
+ = getAction( action );
+ if( pAction.is() )
+ {
+ uno::Reference< accessibility::XAccessibleKeyBinding > xBinding( pAction->getAccessibleActionKeyBinding( i ));
+
+ if( xBinding.is() )
+ {
+ OStringBuffer aRet;
+
+ sal_Int32 nmax = std::min( xBinding->getAccessibleKeyBindingCount(), sal_Int32(3) );
+ for( sal_Int32 n = 0; n < nmax; n++ )
+ {
+ appendKeyStrokes( aRet, xBinding->getAccessibleKeyBinding( n ) );
+
+ if( n < 2 )
+ aRet.append( ';' );
+ }
+
+ // !! FIXME !! remember keystroke in wrapper object ?
+ return getAsConst( aRet.makeStringAndClear() );
+ }
+ }
+ }
+ catch(const uno::Exception&) {
+ g_warning( "Exception in get_keybinding()" );
+ }
+
+ return "";
+}
+
+static gboolean
+action_wrapper_set_description (AtkAction *, gint, const gchar *)
+{
+ return FALSE;
+}
+
+} // extern "C"
+
+void
+actionIfaceInit (AtkActionIface *iface)
+{
+ g_return_if_fail (iface != nullptr);
+
+ iface->do_action = action_wrapper_do_action;
+ iface->get_n_actions = action_wrapper_get_n_actions;
+ iface->get_description = action_wrapper_get_description;
+ iface->get_keybinding = action_wrapper_get_keybinding;
+ iface->get_name = action_wrapper_get_name;
+ iface->get_localized_name = action_wrapper_get_localized_name;
+ iface->set_description = action_wrapper_set_description;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 22:59:33 +0000