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 "vcl/popupmenuwindow.hxx" 30 31 #include "atkwindow.hxx" 32 #include "atkwrapper.hxx" 33 #include "atkregistry.hxx" 34 35 #include <com/sun/star/accessibility/AccessibleRole.hpp> 36 37 using namespace ::com::sun::star::accessibility; 38 using namespace ::com::sun::star::uno; 39 40 extern "C" { 41 42 static void (* window_real_initialize) (AtkObject *obj, gpointer data) = NULL; 43 static void (* window_real_finalize) (GObject *obj) = NULL; 44 45 static void 46 init_from_window( AtkObject *accessible, Window *pWindow ) 47 { 48 static AtkRole aDefaultRole = ATK_ROLE_INVALID; 49 50 // Special role for sub-menu and combo-box popups that are exposed directly 51 // by their parents already. 52 if( aDefaultRole == ATK_ROLE_INVALID ) 53 aDefaultRole = atk_role_register( "redundant object" ); 54 55 AtkRole role = aDefaultRole; 56 57 // Determine the appropriate role for the GtkWindow 58 switch( pWindow->GetAccessibleRole() ) 59 { 60 case AccessibleRole::ALERT: 61 role = ATK_ROLE_ALERT; 62 break; 63 64 case AccessibleRole::DIALOG: 65 role = ATK_ROLE_DIALOG; 66 break; 67 68 case AccessibleRole::FRAME: 69 role = ATK_ROLE_FRAME; 70 break; 71 72 /* Ignore window objects for sub-menus, combo- and list boxes, 73 * which are exposed as children of their parents. 74 */ 75 case AccessibleRole::WINDOW: 76 { 77 sal_uInt16 type = WINDOW_WINDOW; 78 bool parentIsMenuFloatingWindow = false; 79 80 Window *pParent = pWindow->GetParent(); 81 if( pParent ) { 82 type = pParent->GetType(); 83 parentIsMenuFloatingWindow = ( TRUE == pParent->IsMenuFloatingWindow() ); 84 } 85 86 if( (WINDOW_LISTBOX != type) && (WINDOW_COMBOBOX != type) && 87 (WINDOW_MENUBARWINDOW != type) && ! parentIsMenuFloatingWindow ) 88 { 89 role = ATK_ROLE_WINDOW; 90 } 91 } 92 break; 93 94 default: 95 { 96 Window *pChild = pWindow->GetChild( 0 ); 97 if( pChild ) 98 { 99 if( WINDOW_HELPTEXTWINDOW == pChild->GetType() ) 100 { 101 role = ATK_ROLE_TOOL_TIP; 102 pChild->SetAccessibleRole( AccessibleRole::LABEL ); 103 accessible->name = g_strdup( rtl::OUStringToOString( pChild->GetText(), RTL_TEXTENCODING_UTF8 ).getStr() ); 104 } 105 else if ( pWindow->GetType() == WINDOW_BORDERWINDOW && pChild->GetType() == WINDOW_FLOATINGWINDOW ) 106 { 107 PopupMenuFloatingWindow* p = dynamic_cast<PopupMenuFloatingWindow*>(pChild); 108 if (p && p->IsPopupMenu() && p->GetMenuStackLevel() == 0) 109 { 110 // This is a top-level menu popup. Register it. 111 role = ATK_ROLE_POPUP_MENU; 112 pChild->SetAccessibleRole( AccessibleRole::POPUP_MENU ); 113 accessible->name = g_strdup( rtl::OUStringToOString( pChild->GetText(), RTL_TEXTENCODING_UTF8 ).getStr() ); 114 } 115 } 116 } 117 break; 118 } 119 } 120 121 accessible->role = role; 122 } 123 124 /*****************************************************************************/ 125 126 static gint 127 ooo_window_wrapper_clear_focus(gpointer) 128 { 129 atk_focus_tracker_notify( NULL ); 130 return FALSE; 131 } 132 133 /*****************************************************************************/ 134 135 static gboolean 136 ooo_window_wrapper_real_focus_gtk (GtkWidget *, GdkEventFocus *) 137 { 138 g_idle_add( ooo_window_wrapper_clear_focus, NULL ); 139 return FALSE; 140 } 141 142 static gboolean ooo_tooltip_map( GtkWidget* pToolTip, gpointer ) 143 { 144 AtkObject* pAccessible = gtk_widget_get_accessible( pToolTip ); 145 if( pAccessible ) 146 atk_object_notify_state_change( pAccessible, ATK_STATE_SHOWING, TRUE ); 147 return FALSE; 148 } 149 150 static gboolean ooo_tooltip_unmap( GtkWidget* pToolTip, gpointer ) 151 { 152 AtkObject* pAccessible = gtk_widget_get_accessible( pToolTip ); 153 if( pAccessible ) 154 atk_object_notify_state_change( pAccessible, ATK_STATE_SHOWING, FALSE ); 155 return FALSE; 156 } 157 158 /*****************************************************************************/ 159 160 static bool 161 isChildPopupMenu(Window* pWindow) 162 { 163 Window* pChild = pWindow->GetAccessibleChildWindow(0); 164 if (!pChild) 165 return false; 166 167 if (WINDOW_FLOATINGWINDOW != pChild->GetType()) 168 return false; 169 170 PopupMenuFloatingWindow* p = dynamic_cast<PopupMenuFloatingWindow*>(pChild); 171 if (!p) 172 return false; 173 174 return p->IsPopupMenu(); 175 } 176 177 static void 178 ooo_window_wrapper_real_initialize(AtkObject *obj, gpointer data) 179 { 180 window_real_initialize(obj, data); 181 182 GtkSalFrame *pFrame = GtkSalFrame::getFromWindow( GTK_WINDOW( data ) ); 183 if( pFrame ) 184 { 185 Window *pWindow = pFrame->GetWindow(); 186 if( pWindow ) 187 { 188 init_from_window( obj, pWindow ); 189 190 Reference< XAccessible > xAccessible( pWindow->GetAccessible(true) ); 191 192 /* We need the wrapper object for the top-level XAccessible to be 193 * in the wrapper registry when atk traverses the hierachy up on 194 * focus events 195 */ 196 if( WINDOW_BORDERWINDOW == pWindow->GetType() ) 197 { 198 if ( isChildPopupMenu(pWindow) ) 199 { 200 AtkObject *child = atk_object_wrapper_new( xAccessible, obj ); 201 ooo_wrapper_registry_add( xAccessible, child ); 202 } 203 else 204 { 205 ooo_wrapper_registry_add( xAccessible, obj ); 206 g_object_set_data( G_OBJECT(obj), "ooo:atk-wrapper-key", xAccessible.get() ); 207 } 208 } 209 else 210 { 211 AtkObject *child = atk_object_wrapper_new( xAccessible, obj ); 212 child->role = ATK_ROLE_FILLER; 213 if( (ATK_ROLE_DIALOG == obj->role) || (ATK_ROLE_ALERT == obj->role) ) 214 child->role = ATK_ROLE_OPTION_PANE; 215 ooo_wrapper_registry_add( xAccessible, child ); 216 } 217 } 218 } 219 220 g_signal_connect_after( GTK_WIDGET( data ), "focus-out-event", 221 G_CALLBACK (ooo_window_wrapper_real_focus_gtk), 222 NULL); 223 224 if( obj->role == ATK_ROLE_TOOL_TIP ) 225 { 226 g_signal_connect_after( GTK_WIDGET( data ), "map-event", 227 G_CALLBACK (ooo_tooltip_map), 228 NULL); 229 g_signal_connect_after( GTK_WIDGET( data ), "unmap-event", 230 G_CALLBACK (ooo_tooltip_unmap), 231 NULL); 232 } 233 } 234 235 /*****************************************************************************/ 236 237 static void 238 ooo_window_wrapper_real_finalize (GObject *obj) 239 { 240 ooo_wrapper_registry_remove( (XAccessible *) g_object_get_data( obj, "ooo:atk-wrapper-key" )); 241 window_real_finalize( obj ); 242 } 243 244 /*****************************************************************************/ 245 246 static void 247 ooo_window_wrapper_class_init (AtkObjectClass *klass, gpointer) 248 { 249 AtkObjectClass *atk_class; 250 GObjectClass *gobject_class; 251 gpointer data; 252 253 /* 254 * Patch the gobject vtable of GailWindow to refer to our instance of 255 * "initialize". 256 */ 257 258 data = g_type_class_peek_parent( klass ); 259 atk_class = ATK_OBJECT_CLASS (data); 260 261 window_real_initialize = atk_class->initialize; 262 atk_class->initialize = ooo_window_wrapper_real_initialize; 263 264 gobject_class = G_OBJECT_CLASS (data); 265 266 window_real_finalize = gobject_class->finalize; 267 gobject_class->finalize = ooo_window_wrapper_real_finalize; 268 } 269 270 } // extern "C" 271 272 /*****************************************************************************/ 273 274 GType 275 ooo_window_wrapper_get_type (void) 276 { 277 static GType type = 0; 278 279 if (!type) 280 { 281 GType parent_type = g_type_from_name( "GailWindow" ); 282 283 if( ! parent_type ) 284 { 285 g_warning( "Unknown type: GailWindow" ); 286 parent_type = ATK_TYPE_OBJECT; 287 } 288 289 GTypeQuery type_query; 290 g_type_query( parent_type, &type_query ); 291 292 static const GTypeInfo typeInfo = 293 { 294 type_query.class_size, 295 (GBaseInitFunc) NULL, 296 (GBaseFinalizeFunc) NULL, 297 (GClassInitFunc) ooo_window_wrapper_class_init, 298 (GClassFinalizeFunc) NULL, 299 NULL, 300 type_query.instance_size, 301 0, 302 (GInstanceInitFunc) NULL, 303 NULL 304 } ; 305 306 type = g_type_register_static (parent_type, "OOoWindowAtkObject", &typeInfo, (GTypeFlags)0) ; 307 } 308 309 return type; 310 } 311 312 void restore_gail_window_vtable (void) 313 { 314 AtkObjectClass *atk_class; 315 gpointer data; 316 317 GType type = g_type_from_name( "GailWindow" ); 318 319 if( type == G_TYPE_INVALID ) 320 return; 321 322 data = g_type_class_peek( type ); 323 atk_class = ATK_OBJECT_CLASS (data); 324 325 atk_class->initialize = window_real_initialize; 326 } 327 328