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 * 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 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 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* 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 103 wrapper_factory_get_accessible_type(void) 104 { 105 return atk_object_wrapper_get_type(); 106 } 107 108 static AtkObject* 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 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 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