diff options
Diffstat (limited to 'vcl/unx/gtk3/a11y/atkhypertext.cxx')
| -rw-r--r-- | vcl/unx/gtk3/a11y/atkhypertext.cxx | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/vcl/unx/gtk3/a11y/atkhypertext.cxx b/vcl/unx/gtk3/a11y/atkhypertext.cxx new file mode 100644 index 0000000000..83f6817fc9 --- /dev/null +++ b/vcl/unx/gtk3/a11y/atkhypertext.cxx @@ -0,0 +1,277 @@ +/* -*- 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/XAccessibleHypertext.hpp> + +using namespace ::com::sun::star; + +// ---------------------- AtkHyperlink ---------------------- + +namespace { + +struct HyperLink { + AtkHyperlink const atk_hyper_link; + + uno::Reference< accessibility::XAccessibleHyperlink > xLink; +}; + +} + +static uno::Reference< accessibility::XAccessibleHyperlink > const & + getHyperlink( AtkHyperlink *pHyperlink ) +{ + HyperLink *pLink = reinterpret_cast<HyperLink *>(pHyperlink); + return pLink->xLink; +} + +static GObjectClass *hyper_parent_class = nullptr; + +extern "C" { + +static void +hyper_link_finalize (GObject *obj) +{ + HyperLink *hl = reinterpret_cast<HyperLink *>(obj); + hl->xLink.clear(); + hyper_parent_class->finalize (obj); +} + +static gchar * +hyper_link_get_uri( AtkHyperlink *pLink, + gint i ) +{ + try { + uno::Any aAny = getHyperlink( pLink )->getAccessibleActionObject( i ); + OUString aUri = aAny.get< OUString > (); + return OUStringToGChar(aUri); + } + catch(const uno::Exception&) { + g_warning( "Exception in hyper_link_get_uri" ); + } + return nullptr; +} + +static AtkObject * +hyper_link_get_object( AtkHyperlink *, + gint ) +{ + g_warning( "FIXME: hyper_link_get_object unimplemented" ); + return nullptr; +} +static gint +hyper_link_get_end_index( AtkHyperlink *pLink ) +{ + try { + return getHyperlink( pLink )->getEndIndex(); + } + catch(const uno::Exception&) { + } + return -1; +} +static gint +hyper_link_get_start_index( AtkHyperlink *pLink ) +{ + try { + return getHyperlink( pLink )->getStartIndex(); + } + catch(const uno::Exception&) { + } + return -1; +} +static gboolean +hyper_link_is_valid( AtkHyperlink *pLink ) +{ + try { + return getHyperlink( pLink )->isValid(); + } + catch(const uno::Exception&) { + } + return FALSE; +} +static gint +hyper_link_get_n_anchors( AtkHyperlink *pLink ) +{ + try { + return getHyperlink( pLink )->getAccessibleActionCount(); + } + catch(const uno::Exception&) { + } + return 0; +} + +static guint +hyper_link_link_state( AtkHyperlink * ) +{ + g_warning( "FIXME: hyper_link_link_state unimplemented" ); + return 0; +} +static gboolean +hyper_link_is_selected_link( AtkHyperlink * ) +{ + g_warning( "FIXME: hyper_link_is_selected_link unimplemented" ); + return FALSE; +} + +static void +hyper_link_class_init (AtkHyperlinkClass *klass) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (klass); + + gobject_class->finalize = hyper_link_finalize; + + hyper_parent_class = static_cast<GObjectClass *>(g_type_class_peek_parent (klass)); + + klass->get_uri = hyper_link_get_uri; + klass->get_object = hyper_link_get_object; + klass->get_end_index = hyper_link_get_end_index; + klass->get_start_index = hyper_link_get_start_index; + klass->is_valid = hyper_link_is_valid; + klass->get_n_anchors = hyper_link_get_n_anchors; + klass->link_state = hyper_link_link_state; + klass->is_selected_link = hyper_link_is_selected_link; +} + +static GType +hyper_link_get_type() +{ + static GType type = 0; + + if (!type) { + static const GTypeInfo tinfo = { + sizeof (AtkHyperlinkClass), + nullptr, /* base init */ + nullptr, /* base finalize */ + reinterpret_cast<GClassInitFunc>(hyper_link_class_init), + nullptr, /* class finalize */ + nullptr, /* class data */ + sizeof (HyperLink), /* instance size */ + 0, /* nb preallocs */ + nullptr, /* instance init */ + nullptr /* value table */ + }; + + static const GInterfaceInfo atk_action_info = { + reinterpret_cast<GInterfaceInitFunc>(actionIfaceInit), + nullptr, + nullptr + }; + + type = g_type_register_static (ATK_TYPE_HYPERLINK, + "OOoAtkObjHyperLink", &tinfo, + GTypeFlags(0)); + g_type_add_interface_static (type, ATK_TYPE_ACTION, + &atk_action_info); + } + + return type; +} + +// ---------------------- AtkHyperText ---------------------- + +/// @throws uno::RuntimeException +static css::uno::Reference<css::accessibility::XAccessibleHypertext> + getHypertext( AtkHypertext *pHypertext ) +{ + AtkObjectWrapper *pWrap = ATK_OBJECT_WRAPPER( pHypertext ); + if( pWrap ) + { + if( !pWrap->mpHypertext.is() ) + { + pWrap->mpHypertext.set(pWrap->mpContext, css::uno::UNO_QUERY); + } + + return pWrap->mpHypertext; + } + + return css::uno::Reference<css::accessibility::XAccessibleHypertext>(); +} + +static AtkHyperlink * +hypertext_get_link( AtkHypertext *hypertext, + gint link_index) +{ + try { + css::uno::Reference<css::accessibility::XAccessibleHypertext> pHypertext + = getHypertext( hypertext ); + if( pHypertext.is() ) + { + HyperLink *pLink = static_cast<HyperLink *>(g_object_new( hyper_link_get_type(), nullptr )); + pLink->xLink = pHypertext->getHyperLink( link_index ); + if( !pLink->xLink.is() ) { + g_object_unref( G_OBJECT( pLink ) ); + pLink = nullptr; + } + return ATK_HYPERLINK( pLink ); + } + } + catch(const uno::Exception&) { + g_warning( "Exception in getHyperLink()" ); + } + + return nullptr; +} + +static gint +hypertext_get_n_links( AtkHypertext *hypertext ) +{ + try { + css::uno::Reference<css::accessibility::XAccessibleHypertext> pHypertext + = getHypertext( hypertext ); + if( pHypertext.is() ) + return pHypertext->getHyperLinkCount(); + } + catch(const uno::Exception&) { + g_warning( "Exception in getHyperLinkCount()" ); + } + + return 0; +} + +static gint +hypertext_get_link_index( AtkHypertext *hypertext, + gint index) +{ + try { + css::uno::Reference<css::accessibility::XAccessibleHypertext> pHypertext + = getHypertext( hypertext ); + if( pHypertext.is() ) + return pHypertext->getHyperLinkIndex( index ); + } + catch(const uno::Exception&) { + g_warning( "Exception in getHyperLinkIndex()" ); + } + + return 0; +} + +} // extern "C" + +void +hypertextIfaceInit (AtkHypertextIface *iface) +{ + g_return_if_fail (iface != nullptr); + + iface->get_link = hypertext_get_link; + iface->get_n_links = hypertext_get_n_links; + iface->get_link_index = hypertext_get_link_index; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |