Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <unx/gtk/gtkframe.hxx>
21 : #include <vcl/window.hxx>
22 : #include "atkwrapper.hxx"
23 : #include "atkfactory.hxx"
24 : #include "atkregistry.hxx"
25 :
26 : using namespace ::com::sun::star;
27 :
28 : extern "C" {
29 :
30 : /*
31 : * Instances of this dummy object class are returned whenever we have to
32 : * create an AtkObject, but can't touch the OOo object anymore since it
33 : * is already disposed.
34 : */
35 :
36 : static AtkStateSet *
37 0 : noop_wrapper_ref_state_set( AtkObject * )
38 : {
39 0 : AtkStateSet *state_set = atk_state_set_new();
40 0 : atk_state_set_add_state( state_set, ATK_STATE_DEFUNCT );
41 0 : return state_set;
42 : }
43 :
44 : static void
45 0 : atk_noop_object_wrapper_class_init(AtkNoOpObjectClass *klass)
46 : {
47 0 : AtkObjectClass *atk_class = ATK_OBJECT_CLASS( klass );
48 0 : atk_class->ref_state_set = noop_wrapper_ref_state_set;
49 0 : }
50 :
51 : static GType
52 0 : atk_noop_object_wrapper_get_type()
53 : {
54 : static GType type = 0;
55 :
56 0 : if (!type)
57 : {
58 : static const GTypeInfo typeInfo =
59 : {
60 : sizeof (AtkNoOpObjectClass),
61 : nullptr,
62 : nullptr,
63 : reinterpret_cast<GClassInitFunc>(atk_noop_object_wrapper_class_init),
64 : nullptr,
65 : NULL,
66 : sizeof (AtkObjectWrapper),
67 : 0,
68 : nullptr,
69 : NULL
70 : } ;
71 :
72 0 : type = g_type_register_static (ATK_TYPE_OBJECT, "OOoAtkNoOpObj", &typeInfo, (GTypeFlags)0) ;
73 : }
74 0 : return type;
75 : }
76 :
77 : AtkObject*
78 0 : atk_noop_object_wrapper_new()
79 : {
80 : AtkObject *accessible;
81 :
82 0 : accessible = static_cast<AtkObject *>(g_object_new (atk_noop_object_wrapper_get_type(), NULL));
83 0 : g_return_val_if_fail (accessible != NULL, NULL);
84 :
85 0 : accessible->role = ATK_ROLE_INVALID;
86 0 : accessible->layer = ATK_LAYER_INVALID;
87 :
88 0 : return accessible;
89 : }
90 :
91 : /*
92 : * The wrapper factory
93 : */
94 :
95 : static GType
96 0 : wrapper_factory_get_accessible_type()
97 : {
98 0 : return atk_object_wrapper_get_type();
99 : }
100 :
101 : static AtkObject*
102 0 : wrapper_factory_create_accessible( GObject *obj )
103 : {
104 0 : GtkWidget* parent_widget = gtk_widget_get_parent( GTK_WIDGET( obj ) );
105 :
106 : // gail_container_real_remove_gtk tries to re-instanciate an accessible
107 : // for a widget that is about to vanish ..
108 0 : if( ! parent_widget )
109 0 : return atk_noop_object_wrapper_new();
110 :
111 0 : GtkSalFrame* pFrame = GtkSalFrame::getFromWindow( GTK_WINDOW( parent_widget ) );
112 0 : g_return_val_if_fail( pFrame != NULL, NULL );
113 :
114 0 : vcl::Window* pFrameWindow = pFrame->GetWindow();
115 0 : if( pFrameWindow )
116 : {
117 0 : vcl::Window* pWindow = pFrameWindow;
118 :
119 : // skip accessible objects already exposed by the frame objects
120 0 : if( WINDOW_BORDERWINDOW == pWindow->GetType() )
121 0 : pWindow = pFrameWindow->GetAccessibleChildWindow(0);
122 :
123 0 : if( pWindow )
124 : {
125 0 : uno::Reference< accessibility::XAccessible > xAccessible = pWindow->GetAccessible(true);
126 0 : if( xAccessible.is() )
127 : {
128 0 : AtkObject *accessible = ooo_wrapper_registry_get( xAccessible );
129 :
130 0 : if( accessible )
131 0 : g_object_ref( G_OBJECT(accessible) );
132 : else
133 0 : accessible = atk_object_wrapper_new( xAccessible, gtk_widget_get_accessible(parent_widget) );
134 :
135 0 : return accessible;
136 0 : }
137 : }
138 : }
139 :
140 0 : return NULL;
141 : }
142 :
143 : static void
144 0 : wrapper_factory_class_init( AtkObjectFactoryClass *klass )
145 : {
146 0 : klass->create_accessible = wrapper_factory_create_accessible;
147 0 : klass->get_accessible_type = wrapper_factory_get_accessible_type;
148 0 : }
149 :
150 : GType
151 0 : wrapper_factory_get_type()
152 : {
153 : static GType t = 0;
154 :
155 0 : if (!t) {
156 : static const GTypeInfo tinfo =
157 : {
158 : sizeof (AtkObjectFactoryClass),
159 : NULL, NULL, reinterpret_cast<GClassInitFunc>(wrapper_factory_class_init),
160 : NULL, NULL, sizeof (AtkObjectFactory), 0, NULL, NULL
161 : };
162 :
163 : t = g_type_register_static (
164 : ATK_TYPE_OBJECT_FACTORY, "OOoAtkObjectWrapperFactory",
165 0 : &tinfo, (GTypeFlags) 0);
166 : }
167 :
168 0 : return t;
169 : }
170 :
171 : } // extern C
172 :
173 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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