1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_vcl.hxx"
26
27 #include <unx/gtk/gtkframe.hxx>
28 #include <vcl/window.hxx>
29 #include "atkwrapper.hxx"
30 #include "atkfactory.hxx"
31 #include "atkregistry.hxx"
32
33 using namespace ::com::sun::star;
34
35 extern "C" {
36
37 /*
38 * Instances of this dummy object class are returned whenever we have to
39 * create an AtkObject, but can't touch the OOo object anymore since it
40 * is already disposed.
41 */
42
43 static AtkStateSet *
noop_wrapper_ref_state_set(AtkObject *)44 noop_wrapper_ref_state_set( AtkObject * )
45 {
46 AtkStateSet *state_set = atk_state_set_new();
47 atk_state_set_add_state( state_set, ATK_STATE_DEFUNCT );
48 return state_set;
49 }
50
51 static void
atk_noop_object_wrapper_class_init(AtkNoOpObjectClass * klass)52 atk_noop_object_wrapper_class_init(AtkNoOpObjectClass *klass)
53 {
54 AtkObjectClass *atk_class = ATK_OBJECT_CLASS( klass );
55 atk_class->ref_state_set = noop_wrapper_ref_state_set;
56 }
57
58 static GType
atk_noop_object_wrapper_get_type(void)59 atk_noop_object_wrapper_get_type(void)
60 {
61 static GType type = 0;
62
63 if (!type)
64 {
65 static const GTypeInfo typeInfo =
66 {
67 sizeof (AtkNoOpObjectClass),
68 (GBaseInitFunc) NULL,
69 (GBaseFinalizeFunc) NULL,
70 (GClassInitFunc) atk_noop_object_wrapper_class_init,
71 (GClassFinalizeFunc) NULL,
72 NULL,
73 sizeof (AtkObjectWrapper),
74 0,
75 (GInstanceInitFunc) NULL,
76 NULL
77 } ;
78
79 type = g_type_register_static (ATK_TYPE_OBJECT, "OOoAtkNoOpObj", &typeInfo, (GTypeFlags)0) ;
80 }
81 return type;
82 }
83
84 AtkObject*
atk_noop_object_wrapper_new()85 atk_noop_object_wrapper_new()
86 {
87 AtkObject *accessible;
88
89 accessible = (AtkObject *) g_object_new (atk_noop_object_wrapper_get_type(), NULL);
90 g_return_val_if_fail (accessible != NULL, NULL);
91
92 accessible->role = ATK_ROLE_INVALID;
93 accessible->layer = ATK_LAYER_INVALID;
94
95 return accessible;
96 }
97
98 /*
99 * The wrapper factory
100 */
101
102 static GType
wrapper_factory_get_accessible_type(void)103 wrapper_factory_get_accessible_type(void)
104 {
105 return atk_object_wrapper_get_type();
106 }
107
108 static AtkObject*
wrapper_factory_create_accessible(GObject * obj)109 wrapper_factory_create_accessible( GObject *obj )
110 {
111 GtkWidget* parent_widget = gtk_widget_get_parent( GTK_WIDGET( obj ) );
112
113 // gail_container_real_remove_gtk tries to re-instanciate an accessible
114 // for a widget that is about to vanish ..
115 if( ! parent_widget )
116 return atk_noop_object_wrapper_new();
117
118 GtkSalFrame* pFrame = GtkSalFrame::getFromWindow( GTK_WINDOW( parent_widget ) );
119 g_return_val_if_fail( pFrame != NULL, NULL );
120
121 Window* pFrameWindow = pFrame->GetWindow();
122 if( pFrameWindow )
123 {
124 Window* pWindow = pFrameWindow;
125
126 // skip accessible objects already exposed by the frame objects
127 if( WINDOW_BORDERWINDOW == pWindow->GetType() )
128 pWindow = pFrameWindow->GetAccessibleChildWindow(0);
129
130 if( pWindow )
131 {
132 uno::Reference< accessibility::XAccessible > xAccessible = pWindow->GetAccessible(true);
133 if( xAccessible.is() )
134 {
135 AtkObject *accessible = ooo_wrapper_registry_get( xAccessible );
136
137 if( accessible )
138 g_object_ref( G_OBJECT(accessible) );
139 else
140 accessible = atk_object_wrapper_new( xAccessible, gtk_widget_get_accessible(parent_widget) );
141
142 return accessible;
143 }
144 }
145 }
146
147 return NULL;
148 }
149
150 static void
wrapper_factory_class_init(AtkObjectFactoryClass * klass)151 wrapper_factory_class_init( AtkObjectFactoryClass *klass )
152 {
153 klass->create_accessible = wrapper_factory_create_accessible;
154 klass->get_accessible_type = wrapper_factory_get_accessible_type;
155 }
156
157 GType
wrapper_factory_get_type(void)158 wrapper_factory_get_type (void)
159 {
160 static GType t = 0;
161
162 if (!t) {
163 static const GTypeInfo tinfo =
164 {
165 sizeof (AtkObjectFactoryClass),
166 NULL, NULL, (GClassInitFunc) wrapper_factory_class_init,
167 NULL, NULL, sizeof (AtkObjectFactory), 0, NULL, NULL
168 };
169
170 t = g_type_register_static (
171 ATK_TYPE_OBJECT_FACTORY, "OOoAtkObjectWrapperFactory",
172 &tinfo, (GTypeFlags) 0);
173 }
174
175 return t;
176 }
177
178 } // extern C
179
180