alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 Nuanti Ltd. |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 3 | * Copyright (C) 2009 Igalia S.L. |
| 4 | * |
| 5 | * Portions from Mozilla a11y, copyright as follows: |
| 6 | * |
| 7 | * The Original Code is mozilla.org code. |
| 8 | * |
| 9 | * The Initial Developer of the Original Code is |
| 10 | * Sun Microsystems, Inc. |
| 11 | * Portions created by the Initial Developer are Copyright (C) 2002 |
| 12 | * the Initial Developer. All Rights Reserved. |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 13 | * |
| 14 | * This library is free software; you can redistribute it and/or |
| 15 | * modify it under the terms of the GNU Library General Public |
| 16 | * License as published by the Free Software Foundation; either |
| 17 | * version 2 of the License, or (at your option) any later version. |
| 18 | * |
| 19 | * This library is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 22 | * Library General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU Library General Public License |
| 25 | * along with this library; see the file COPYING.LIB. If not, write to |
| 26 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 27 | * Boston, MA 02110-1301, USA. |
| 28 | */ |
| 29 | |
| 30 | #include "config.h" |
| 31 | #include "AccessibilityObjectWrapperAtk.h" |
| 32 | |
ddkilzer@apple.com | 8d87863 | 2008-11-09 19:50:37 +0000 | [diff] [blame] | 33 | #if HAVE(ACCESSIBILITY) |
| 34 | |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 35 | #include "AXObjectCache.h" |
| 36 | #include "AccessibilityListBox.h" |
| 37 | #include "AccessibilityRenderObject.h" |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 38 | #include "AtomicString.h" |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 39 | #include "CString.h" |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 40 | #include "Document.h" |
| 41 | #include "Editor.h" |
| 42 | #include "Frame.h" |
| 43 | #include "FrameView.h" |
| 44 | #include "IntRect.h" |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 45 | #include "NotImplemented.h" |
| 46 | |
| 47 | #include <atk/atk.h> |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 48 | #include <glib.h> |
| 49 | #include <glib/gprintf.h> |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 50 | |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 51 | using namespace WebCore; |
| 52 | |
xan@webkit.org | c886cc6 | 2009-04-09 11:17:48 +0000 | [diff] [blame^] | 53 | static AccessibilityObject* fallbackObject() |
| 54 | { |
| 55 | static AXObjectCache* fallbackCache = new AXObjectCache(); |
| 56 | static AccessibilityObject* object = 0; |
| 57 | if (!object) { |
| 58 | // FIXME: using fallbackCache->getOrCreate(ListBoxOptionRole) is a hack |
| 59 | object = fallbackCache->getOrCreate(ListBoxOptionRole); |
| 60 | object->ref(); |
| 61 | } |
| 62 | |
| 63 | return object; |
| 64 | } |
| 65 | |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 66 | // Used to provide const char* returns. |
| 67 | static const char* returnString(const String& str) |
| 68 | { |
| 69 | static CString returnedString; |
| 70 | returnedString = str.utf8(); |
| 71 | return returnedString.data(); |
| 72 | } |
| 73 | |
| 74 | static AccessibilityObject* core(WebKitAccessible* accessible) |
| 75 | { |
| 76 | if (!accessible) |
| 77 | return 0; |
| 78 | |
| 79 | return accessible->m_object; |
| 80 | } |
| 81 | |
| 82 | static AccessibilityObject* core(AtkObject* object) |
| 83 | { |
| 84 | if (!WEBKIT_IS_ACCESSIBLE(object)) |
| 85 | return 0; |
| 86 | |
| 87 | return core(WEBKIT_ACCESSIBLE(object)); |
| 88 | } |
| 89 | |
| 90 | static AccessibilityObject* core(AtkAction* action) |
| 91 | { |
| 92 | return core(ATK_OBJECT(action)); |
| 93 | } |
| 94 | |
| 95 | static AccessibilityObject* core(AtkStreamableContent* streamable) |
| 96 | { |
| 97 | return core(ATK_OBJECT(streamable)); |
| 98 | } |
| 99 | |
| 100 | static AccessibilityObject* core(AtkText* text) |
| 101 | { |
| 102 | return core(ATK_OBJECT(text)); |
| 103 | } |
| 104 | |
| 105 | static AccessibilityObject* core(AtkEditableText* text) |
| 106 | { |
| 107 | return core(ATK_OBJECT(text)); |
| 108 | } |
| 109 | |
| 110 | extern "C" { |
| 111 | |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 112 | static const gchar* webkit_accessible_get_name(AtkObject* object) |
| 113 | { |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 114 | // TODO: Deal with later changes. |
| 115 | if (!object->name) |
zecke@webkit.org | 7f6b123 | 2009-01-30 23:13:59 +0000 | [diff] [blame] | 116 | atk_object_set_name(object, core(object)->stringValue().utf8().data()); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 117 | return object->name; |
| 118 | } |
| 119 | |
| 120 | static const gchar* webkit_accessible_get_description(AtkObject* object) |
| 121 | { |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 122 | // TODO: the Mozilla MSAA implementation prepends "Description: " |
| 123 | // Should we do this too? |
| 124 | |
| 125 | // TODO: Deal with later changes. |
| 126 | if (!object->description) |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 127 | atk_object_set_description(object, core(object)->accessibilityDescription().utf8().data()); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 128 | return object->description; |
| 129 | } |
| 130 | |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 131 | static AtkObject* webkit_accessible_get_parent(AtkObject* object) |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 132 | { |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 133 | AccessibilityObject* coreParent = core(object)->parentObject(); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 134 | |
| 135 | if (!coreParent) |
| 136 | return NULL; |
| 137 | |
| 138 | return coreParent->wrapper(); |
| 139 | } |
| 140 | |
| 141 | static gint webkit_accessible_get_n_children(AtkObject* object) |
| 142 | { |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 143 | return core(object)->children().size(); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | static AtkObject* webkit_accessible_ref_child(AtkObject* object, gint index) |
| 147 | { |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 148 | AccessibilityObject* coreObject = core(object); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 149 | |
| 150 | g_return_val_if_fail(index >= 0, NULL); |
alp@webkit.org | 369cdca | 2008-09-06 04:08:30 +0000 | [diff] [blame] | 151 | g_return_val_if_fail(static_cast<size_t>(index) < coreObject->children().size(), NULL); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 152 | |
| 153 | AccessibilityObject* coreChild = coreObject->children().at(index).get(); |
| 154 | |
| 155 | if (!coreChild) |
| 156 | return NULL; |
| 157 | |
| 158 | AtkObject* child = coreChild->wrapper(); |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 159 | // TODO: Should we call atk_object_set_parent() here? |
| 160 | //atk_object_set_parent(child, object); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 161 | g_object_ref(child); |
| 162 | |
| 163 | return child; |
| 164 | } |
| 165 | |
| 166 | static gint webkit_accessible_get_index_in_parent(AtkObject* object) |
| 167 | { |
| 168 | // FIXME: This needs to be implemented. |
| 169 | notImplemented(); |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | static AtkRole atkRole(AccessibilityRole role) |
| 174 | { |
| 175 | switch (role) { |
| 176 | case WebCore::ButtonRole: |
| 177 | return ATK_ROLE_PUSH_BUTTON; |
| 178 | case WebCore::RadioButtonRole: |
| 179 | return ATK_ROLE_RADIO_BUTTON; |
| 180 | case WebCore::CheckBoxRole: |
| 181 | return ATK_ROLE_CHECK_BOX; |
| 182 | case WebCore::SliderRole: |
| 183 | return ATK_ROLE_SLIDER; |
| 184 | case WebCore::TabGroupRole: |
| 185 | return ATK_ROLE_PAGE_TAB_LIST; |
| 186 | case WebCore::TextFieldRole: |
| 187 | case WebCore::TextAreaRole: |
| 188 | case WebCore::ListMarkerRole: |
| 189 | return ATK_ROLE_ENTRY; |
| 190 | case WebCore::StaticTextRole: |
| 191 | return ATK_ROLE_TEXT; //? |
| 192 | case WebCore::OutlineRole: |
| 193 | return ATK_ROLE_TREE; |
| 194 | case WebCore::ColumnRole: |
| 195 | return ATK_ROLE_UNKNOWN; //? |
| 196 | case WebCore::RowRole: |
| 197 | return ATK_ROLE_LIST_ITEM; |
| 198 | case WebCore::GroupRole: |
| 199 | return ATK_ROLE_UNKNOWN; //? |
| 200 | case WebCore::ListRole: |
| 201 | return ATK_ROLE_LIST; |
| 202 | case WebCore::TableRole: |
| 203 | return ATK_ROLE_TABLE; |
| 204 | case WebCore::LinkRole: |
| 205 | case WebCore::WebCoreLinkRole: |
| 206 | return ATK_ROLE_LINK; |
| 207 | case WebCore::ImageMapRole: |
| 208 | case WebCore::ImageRole: |
| 209 | return ATK_ROLE_IMAGE; |
| 210 | default: |
| 211 | return ATK_ROLE_UNKNOWN; |
| 212 | } |
| 213 | } |
| 214 | |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 215 | static AtkRole webkit_accessible_get_role(AtkObject* object) |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 216 | { |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 217 | return atkRole(core(object)->roleValue()); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 218 | } |
| 219 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 220 | static gpointer webkit_accessible_parent_class = NULL; |
| 221 | |
| 222 | static void webkit_accessible_init(AtkObject* object, gpointer data) |
| 223 | { |
| 224 | g_return_if_fail(WEBKIT_IS_ACCESSIBLE(object)); |
| 225 | g_return_if_fail(data); |
| 226 | |
| 227 | if (ATK_OBJECT_CLASS(webkit_accessible_parent_class)->initialize) |
| 228 | ATK_OBJECT_CLASS(webkit_accessible_parent_class)->initialize(object, data); |
| 229 | |
| 230 | WEBKIT_ACCESSIBLE(object)->m_object = reinterpret_cast<AccessibilityObject*>(data); |
| 231 | } |
| 232 | |
| 233 | static void webkit_accessible_finalize(GObject* object) |
| 234 | { |
| 235 | // This is a good time to clear the return buffer. |
| 236 | returnString(String()); |
| 237 | |
| 238 | if (G_OBJECT_CLASS(webkit_accessible_parent_class)->finalize) |
| 239 | G_OBJECT_CLASS(webkit_accessible_parent_class)->finalize(object); |
| 240 | } |
| 241 | |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 242 | static void webkit_accessible_class_init(AtkObjectClass* klass) |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 243 | { |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 244 | GObjectClass* gobjectClass = G_OBJECT_CLASS(klass); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 245 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 246 | webkit_accessible_parent_class = g_type_class_peek_parent(klass); |
| 247 | |
| 248 | gobjectClass->finalize = webkit_accessible_finalize; |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 249 | |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 250 | klass->initialize = webkit_accessible_init; |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 251 | klass->get_name = webkit_accessible_get_name; |
| 252 | klass->get_description = webkit_accessible_get_description; |
| 253 | klass->get_parent = webkit_accessible_get_parent; |
| 254 | klass->get_n_children = webkit_accessible_get_n_children; |
| 255 | klass->ref_child = webkit_accessible_ref_child; |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 256 | klass->get_role = webkit_accessible_get_role; |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | GType |
| 260 | webkit_accessible_get_type(void) |
| 261 | { |
| 262 | static volatile gsize type_volatile = 0; |
| 263 | |
| 264 | if (g_once_init_enter(&type_volatile)) { |
| 265 | static const GTypeInfo tinfo = { |
| 266 | sizeof(WebKitAccessibleClass), |
| 267 | (GBaseInitFunc)NULL, |
| 268 | (GBaseFinalizeFunc)NULL, |
| 269 | (GClassInitFunc)webkit_accessible_class_init, |
| 270 | (GClassFinalizeFunc)NULL, |
| 271 | NULL, /* class data */ |
| 272 | sizeof(WebKitAccessible), /* instance size */ |
| 273 | 0, /* nb preallocs */ |
| 274 | (GInstanceInitFunc)NULL, |
| 275 | NULL /* value table */ |
| 276 | }; |
| 277 | |
| 278 | GType type = g_type_register_static(ATK_TYPE_OBJECT, |
| 279 | "WebKitAccessible", &tinfo, GTypeFlags(0)); |
| 280 | g_once_init_leave(&type_volatile, type); |
| 281 | } |
| 282 | |
| 283 | return type_volatile; |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | static gboolean webkit_accessible_action_do_action(AtkAction* action, gint i) |
| 287 | { |
| 288 | g_return_val_if_fail(i == 0, FALSE); |
| 289 | return core(action)->performDefaultAction(); |
| 290 | } |
| 291 | |
| 292 | static gint webkit_accessible_action_get_n_actions(AtkAction* action) |
| 293 | { |
| 294 | return 1; |
| 295 | } |
| 296 | |
| 297 | static const gchar* webkit_accessible_action_get_description(AtkAction* action, gint i) |
| 298 | { |
| 299 | g_return_val_if_fail(i == 0, NULL); |
| 300 | // TODO: Need a way to provide/localize action descriptions. |
| 301 | notImplemented(); |
| 302 | return ""; |
| 303 | } |
| 304 | |
| 305 | static const gchar* webkit_accessible_action_get_keybinding(AtkAction* action, gint i) |
| 306 | { |
| 307 | g_return_val_if_fail(i == 0, NULL); |
| 308 | // FIXME: Construct a proper keybinding string. |
| 309 | return returnString(core(action)->accessKey().string()); |
| 310 | } |
| 311 | |
| 312 | static const gchar* webkit_accessible_action_get_name(AtkAction* action, gint i) |
| 313 | { |
| 314 | g_return_val_if_fail(i == 0, NULL); |
| 315 | return returnString(core(action)->actionVerb()); |
| 316 | } |
| 317 | |
| 318 | static void atk_action_interface_init(AtkActionIface* iface) |
| 319 | { |
| 320 | g_return_if_fail(iface); |
| 321 | |
| 322 | iface->do_action = webkit_accessible_action_do_action; |
| 323 | iface->get_n_actions = webkit_accessible_action_get_n_actions; |
| 324 | iface->get_description = webkit_accessible_action_get_description; |
| 325 | iface->get_keybinding = webkit_accessible_action_get_keybinding; |
| 326 | iface->get_name = webkit_accessible_action_get_name; |
| 327 | } |
| 328 | |
| 329 | // Text |
| 330 | |
| 331 | static gchar* webkit_accessible_text_get_text(AtkText* text, gint start_offset, gint end_offset) |
| 332 | { |
| 333 | String ret = core(text)->doAXStringForRange(PlainTextRange(start_offset, end_offset - start_offset)); |
| 334 | // TODO: Intentionally copied? |
| 335 | return g_strdup(ret.utf8().data()); |
| 336 | } |
| 337 | |
| 338 | static gchar* webkit_accessible_text_get_text_after_offset(AtkText* text, gint offset, AtkTextBoundary boundary_type, gint* start_offset, gint* end_offset) |
| 339 | { |
| 340 | notImplemented(); |
| 341 | return NULL; |
| 342 | } |
| 343 | |
| 344 | static gchar* webkit_accessible_text_get_text_at_offset(AtkText* text, gint offset, AtkTextBoundary boundary_type, gint* start_offset, gint* end_offset) |
| 345 | { |
| 346 | notImplemented(); |
| 347 | return NULL; |
| 348 | } |
| 349 | |
| 350 | static gunichar webkit_accessible_text_get_character_at_offset(AtkText* text, gint offset) |
| 351 | { |
| 352 | notImplemented(); |
| 353 | return 0; |
| 354 | } |
| 355 | |
| 356 | static gchar* webkit_accessible_text_get_text_before_offset(AtkText* text, gint offset, AtkTextBoundary boundary_type, gint* start_offset, gint* end_offset) |
| 357 | { |
| 358 | notImplemented(); |
| 359 | return NULL; |
| 360 | } |
| 361 | |
| 362 | static gint webkit_accessible_text_get_caret_offset(AtkText* text) |
| 363 | { |
| 364 | // TODO: Verify this, especially for RTL text. |
| 365 | return core(text)->selectionStart(); |
| 366 | } |
| 367 | |
| 368 | static AtkAttributeSet* webkit_accessible_text_get_run_attributes(AtkText* text, gint offset, gint* start_offset, gint* end_offset) |
| 369 | { |
| 370 | notImplemented(); |
| 371 | return NULL; |
| 372 | } |
| 373 | |
| 374 | static AtkAttributeSet* webkit_accessible_text_get_default_attributes(AtkText* text) |
| 375 | { |
| 376 | notImplemented(); |
| 377 | return NULL; |
| 378 | } |
| 379 | |
| 380 | static void webkit_accessible_text_get_character_extents(AtkText* text, gint offset, gint* x, gint* y, gint* width, gint* height, AtkCoordType coords) |
| 381 | { |
| 382 | IntRect extents = core(text)->doAXBoundsForRange(PlainTextRange(offset, 1)); |
| 383 | // FIXME: Use the AtkCoordType |
| 384 | // Requires WebCore::ScrollView::contentsToScreen() to be implemented |
| 385 | |
| 386 | #if 0 |
| 387 | switch(coords) { |
| 388 | case ATK_XY_SCREEN: |
| 389 | extents = core(text)->document()->view()->contentsToScreen(extents); |
| 390 | break; |
| 391 | case ATK_XY_WINDOW: |
| 392 | // No-op |
| 393 | break; |
| 394 | } |
| 395 | #endif |
| 396 | |
| 397 | *x = extents.x(); |
| 398 | *y = extents.y(); |
| 399 | *width = extents.width(); |
| 400 | *height = extents.height(); |
| 401 | } |
| 402 | |
| 403 | static gint webkit_accessible_text_get_character_count(AtkText* text) |
| 404 | { |
| 405 | return core(text)->textLength(); |
| 406 | } |
| 407 | |
| 408 | static gint webkit_accessible_text_get_offset_at_point(AtkText* text, gint x, gint y, AtkCoordType coords) |
| 409 | { |
| 410 | // FIXME: Use the AtkCoordType |
| 411 | // TODO: Is it correct to ignore range.length? |
| 412 | IntPoint pos(x, y); |
| 413 | PlainTextRange range = core(text)->doAXRangeForPosition(pos); |
| 414 | return range.start; |
| 415 | } |
| 416 | |
| 417 | static gint webkit_accessible_text_get_n_selections(AtkText* text) |
| 418 | { |
| 419 | notImplemented(); |
| 420 | return 0; |
| 421 | } |
| 422 | |
| 423 | static gchar* webkit_accessible_text_get_selection(AtkText* text, gint selection_num, gint* start_offset, gint* end_offset) |
| 424 | { |
| 425 | notImplemented(); |
| 426 | return NULL; |
| 427 | } |
| 428 | |
| 429 | static gboolean webkit_accessible_text_add_selection(AtkText* text, gint start_offset, gint end_offset) |
| 430 | { |
| 431 | notImplemented(); |
| 432 | return FALSE; |
| 433 | } |
| 434 | |
| 435 | static gboolean webkit_accessible_text_remove_selection(AtkText* text, gint selection_num) |
| 436 | { |
| 437 | notImplemented(); |
| 438 | return FALSE; |
| 439 | } |
| 440 | |
| 441 | static gboolean webkit_accessible_text_set_selection(AtkText* text, gint selection_num, gint start_offset, gint end_offset) |
| 442 | { |
| 443 | notImplemented(); |
| 444 | return FALSE; |
| 445 | } |
| 446 | |
| 447 | static gboolean webkit_accessible_text_set_caret_offset(AtkText* text, gint offset) |
| 448 | { |
| 449 | // TODO: Verify |
| 450 | //core(text)->setSelectedTextRange(PlainTextRange(offset, 0)); |
| 451 | AccessibilityObject* coreObject = core(text); |
christian@webkit.org | ade6c5e | 2008-06-18 09:54:25 +0000 | [diff] [blame] | 452 | coreObject->setSelectedVisiblePositionRange(coreObject->visiblePositionRangeForRange(PlainTextRange(offset, 0))); |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 453 | return TRUE; |
| 454 | } |
| 455 | |
| 456 | #if 0 |
| 457 | // Signal handlers |
| 458 | static void webkit_accessible_text_text_changed(AtkText* text, gint position, gint length) |
| 459 | { |
| 460 | } |
| 461 | |
| 462 | static void webkit_accessible_text_text_caret_moved(AtkText* text, gint location) |
| 463 | { |
| 464 | } |
| 465 | |
| 466 | static void webkit_accessible_text_text_selection_changed(AtkText* text) |
| 467 | { |
| 468 | } |
| 469 | |
| 470 | static void webkit_accessible_text_text_attributes_changed(AtkText* text) |
| 471 | { |
| 472 | } |
| 473 | |
| 474 | static void webkit_accessible_text_get_range_extents(AtkText* text, gint start_offset, gint end_offset, AtkCoordType coord_type, AtkTextRectangle* rect) |
| 475 | { |
| 476 | } |
| 477 | |
| 478 | static AtkTextRange** webkit_accessible_text_get_bounded_ranges(AtkText* text, AtkTextRectangle* rect, AtkCoordType coord_type, AtkTextClipType x_clip_type, AtkTextClipType y_clip_type) |
| 479 | { |
| 480 | } |
| 481 | #endif |
| 482 | |
| 483 | static void atk_text_interface_init(AtkTextIface* iface) |
| 484 | { |
| 485 | g_return_if_fail(iface); |
| 486 | |
| 487 | iface->get_text = webkit_accessible_text_get_text; |
| 488 | iface->get_text_after_offset = webkit_accessible_text_get_text_after_offset; |
| 489 | iface->get_text_at_offset = webkit_accessible_text_get_text_at_offset; |
| 490 | iface->get_character_at_offset = webkit_accessible_text_get_character_at_offset; |
| 491 | iface->get_text_before_offset = webkit_accessible_text_get_text_before_offset; |
| 492 | iface->get_caret_offset = webkit_accessible_text_get_caret_offset; |
| 493 | iface->get_run_attributes = webkit_accessible_text_get_run_attributes; |
| 494 | iface->get_default_attributes = webkit_accessible_text_get_default_attributes; |
| 495 | iface->get_character_extents = webkit_accessible_text_get_character_extents; |
| 496 | //iface->get_range_extents = ; |
| 497 | iface->get_character_count = webkit_accessible_text_get_character_count; |
| 498 | iface->get_offset_at_point = webkit_accessible_text_get_offset_at_point; |
| 499 | iface->get_n_selections = webkit_accessible_text_get_n_selections; |
| 500 | iface->get_selection = webkit_accessible_text_get_selection; |
| 501 | |
| 502 | // set methods |
| 503 | iface->add_selection = webkit_accessible_text_add_selection; |
| 504 | iface->remove_selection = webkit_accessible_text_remove_selection; |
| 505 | iface->set_selection = webkit_accessible_text_set_selection; |
| 506 | iface->set_caret_offset = webkit_accessible_text_set_caret_offset; |
| 507 | } |
| 508 | |
| 509 | // EditableText |
| 510 | |
| 511 | static gboolean webkit_accessible_editable_text_set_run_attributes(AtkEditableText* text, AtkAttributeSet* attrib_set, gint start_offset, gint end_offset) |
| 512 | { |
| 513 | notImplemented(); |
| 514 | return FALSE; |
| 515 | } |
| 516 | |
| 517 | static void webkit_accessible_editable_text_set_text_contents(AtkEditableText* text, const gchar* string) |
| 518 | { |
| 519 | // FIXME: string nullcheck? |
| 520 | core(text)->setValue(String::fromUTF8(string)); |
| 521 | } |
| 522 | |
| 523 | static void webkit_accessible_editable_text_insert_text(AtkEditableText* text, const gchar* string, gint length, gint* position) |
| 524 | { |
| 525 | // FIXME: string nullcheck? |
| 526 | |
| 527 | AccessibilityObject* coreObject = core(text); |
| 528 | // FIXME: Not implemented in WebCore |
| 529 | //coreObject->setSelectedTextRange(PlainTextRange(*position, 0)); |
| 530 | //coreObject->setSelectedText(String::fromUTF8(string)); |
| 531 | |
| 532 | if (!coreObject->document() || !coreObject->document()->frame()) |
| 533 | return; |
christian@webkit.org | ade6c5e | 2008-06-18 09:54:25 +0000 | [diff] [blame] | 534 | coreObject->setSelectedVisiblePositionRange(coreObject->visiblePositionRangeForRange(PlainTextRange(*position, 0))); |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 535 | coreObject->setFocused(true); |
| 536 | // FIXME: We should set position to the actual inserted text length, which may be less than that requested. |
| 537 | if (coreObject->document()->frame()->editor()->insertTextWithoutSendingTextEvent(String::fromUTF8(string), false, 0)) |
| 538 | *position += length; |
| 539 | } |
| 540 | |
| 541 | static void webkit_accessible_editable_text_copy_text(AtkEditableText* text, gint start_pos, gint end_pos) |
| 542 | { |
| 543 | notImplemented(); |
| 544 | } |
| 545 | |
| 546 | static void webkit_accessible_editable_text_cut_text(AtkEditableText* text, gint start_pos, gint end_pos) |
| 547 | { |
| 548 | notImplemented(); |
| 549 | } |
| 550 | |
| 551 | static void webkit_accessible_editable_text_delete_text(AtkEditableText* text, gint start_pos, gint end_pos) |
| 552 | { |
| 553 | AccessibilityObject* coreObject = core(text); |
| 554 | // FIXME: Not implemented in WebCore |
| 555 | //coreObject->setSelectedTextRange(PlainTextRange(start_pos, end_pos - start_pos)); |
| 556 | //coreObject->setSelectedText(String()); |
| 557 | |
| 558 | if (!coreObject->document() || !coreObject->document()->frame()) |
| 559 | return; |
christian@webkit.org | ade6c5e | 2008-06-18 09:54:25 +0000 | [diff] [blame] | 560 | coreObject->setSelectedVisiblePositionRange(coreObject->visiblePositionRangeForRange(PlainTextRange(start_pos, end_pos - start_pos))); |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 561 | coreObject->setFocused(true); |
| 562 | coreObject->document()->frame()->editor()->performDelete(); |
| 563 | } |
| 564 | |
| 565 | static void webkit_accessible_editable_text_paste_text(AtkEditableText* text, gint position) |
| 566 | { |
| 567 | notImplemented(); |
| 568 | } |
| 569 | |
| 570 | static void atk_editable_text_interface_init(AtkEditableTextIface* iface) |
| 571 | { |
| 572 | g_return_if_fail(iface); |
| 573 | |
| 574 | iface->set_run_attributes = webkit_accessible_editable_text_set_run_attributes; |
| 575 | iface->set_text_contents = webkit_accessible_editable_text_set_text_contents; |
| 576 | iface->insert_text = webkit_accessible_editable_text_insert_text; |
| 577 | iface->copy_text = webkit_accessible_editable_text_copy_text; |
| 578 | iface->cut_text = webkit_accessible_editable_text_cut_text; |
| 579 | iface->delete_text = webkit_accessible_editable_text_delete_text; |
| 580 | iface->paste_text = webkit_accessible_editable_text_paste_text; |
| 581 | } |
| 582 | |
| 583 | // StreamableContent |
| 584 | |
| 585 | static gint webkit_accessible_streamable_content_get_n_mime_types(AtkStreamableContent* streamable) |
| 586 | { |
| 587 | notImplemented(); |
| 588 | return 0; |
| 589 | } |
| 590 | |
| 591 | static G_CONST_RETURN gchar* webkit_accessible_streamable_content_get_mime_type(AtkStreamableContent* streamable, gint i) |
| 592 | { |
| 593 | notImplemented(); |
| 594 | return ""; |
| 595 | } |
| 596 | |
| 597 | static GIOChannel* webkit_accessible_streamable_content_get_stream(AtkStreamableContent* streamable, const gchar* mime_type) |
| 598 | { |
| 599 | notImplemented(); |
| 600 | return NULL; |
| 601 | } |
| 602 | |
| 603 | static G_CONST_RETURN gchar* webkit_accessible_streamable_content_get_uri(AtkStreamableContent* streamable, const gchar* mime_type) |
| 604 | { |
| 605 | notImplemented(); |
| 606 | return NULL; |
| 607 | } |
| 608 | |
| 609 | static void atk_streamable_content_interface_init(AtkStreamableContentIface* iface) |
| 610 | { |
| 611 | g_return_if_fail(iface); |
| 612 | |
| 613 | iface->get_n_mime_types = webkit_accessible_streamable_content_get_n_mime_types; |
| 614 | iface->get_mime_type = webkit_accessible_streamable_content_get_mime_type; |
| 615 | iface->get_stream = webkit_accessible_streamable_content_get_stream; |
| 616 | iface->get_uri = webkit_accessible_streamable_content_get_uri; |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 617 | } |
| 618 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 619 | static const GInterfaceInfo AtkInterfacesInitFunctions[] = { |
| 620 | {(GInterfaceInitFunc)atk_action_interface_init, |
| 621 | (GInterfaceFinalizeFunc) NULL, NULL}, |
| 622 | {(GInterfaceInitFunc)atk_streamable_content_interface_init, |
| 623 | (GInterfaceFinalizeFunc) NULL, NULL}, |
| 624 | {(GInterfaceInitFunc)atk_editable_text_interface_init, |
| 625 | (GInterfaceFinalizeFunc) NULL, NULL}, |
| 626 | {(GInterfaceInitFunc)atk_text_interface_init, |
| 627 | (GInterfaceFinalizeFunc) NULL, NULL} |
| 628 | }; |
| 629 | |
| 630 | enum WAIType { |
| 631 | WAI_ACTION, |
| 632 | WAI_STREAMABLE, |
| 633 | WAI_EDITABLE_TEXT, |
| 634 | WAI_TEXT |
| 635 | }; |
| 636 | |
| 637 | static GType GetAtkInterfaceTypeFromWAIType(WAIType type) |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 638 | { |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 639 | switch (type) { |
| 640 | case WAI_ACTION: |
| 641 | return ATK_TYPE_ACTION; |
| 642 | case WAI_STREAMABLE: |
| 643 | return ATK_TYPE_STREAMABLE_CONTENT; |
| 644 | case WAI_EDITABLE_TEXT: |
| 645 | return ATK_TYPE_EDITABLE_TEXT; |
| 646 | case WAI_TEXT: |
| 647 | return ATK_TYPE_TEXT; |
| 648 | } |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 649 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 650 | return G_TYPE_INVALID; |
| 651 | } |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 652 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 653 | static guint16 getInterfaceMaskFromObject(AccessibilityObject* coreObject) |
| 654 | { |
| 655 | guint16 interfaceMask = 0; |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 656 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 657 | // Action and Streamable are always supported (FIXME: Should they?) |
| 658 | interfaceMask |= 1 << WAI_ACTION; |
| 659 | interfaceMask |= 1 << WAI_STREAMABLE; |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 660 | |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 661 | // Text & Editable Text |
| 662 | if (coreObject->isAccessibilityRenderObject() && coreObject->isTextControl()) { |
| 663 | if (coreObject->isReadOnly()) |
| 664 | interfaceMask |= 1 << WAI_TEXT; |
| 665 | else |
| 666 | interfaceMask |= 1 << WAI_EDITABLE_TEXT; |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 667 | } |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 668 | |
| 669 | return interfaceMask; |
| 670 | } |
| 671 | |
| 672 | static const char* getUniqueAccessibilityTypeName(guint16 interfaceMask) |
| 673 | { |
| 674 | #define WAI_TYPE_NAME_LEN (30) /* Enough for prefix + 5 hex characters (max) */ |
| 675 | static char name[WAI_TYPE_NAME_LEN + 1]; |
| 676 | |
| 677 | g_sprintf(name, "WAIType%x", interfaceMask); |
| 678 | name[WAI_TYPE_NAME_LEN] = '\0'; |
| 679 | |
| 680 | return name; |
| 681 | } |
| 682 | |
| 683 | static GType getAccessibilityTypeFromObject(AccessibilityObject* coreObject) |
| 684 | { |
| 685 | static const GTypeInfo typeInfo = { |
| 686 | sizeof(WebKitAccessibleClass), |
| 687 | (GBaseInitFunc) NULL, |
| 688 | (GBaseFinalizeFunc) NULL, |
| 689 | (GClassInitFunc) NULL, |
| 690 | (GClassFinalizeFunc) NULL, |
| 691 | NULL, /* class data */ |
| 692 | sizeof(WebKitAccessible), /* instance size */ |
| 693 | 0, /* nb preallocs */ |
| 694 | (GInstanceInitFunc) NULL, |
| 695 | NULL /* value table */ |
| 696 | }; |
| 697 | |
| 698 | guint16 interfaceMask = getInterfaceMaskFromObject(coreObject); |
| 699 | const char* atkTypeName = getUniqueAccessibilityTypeName(interfaceMask); |
| 700 | GType type = g_type_from_name(atkTypeName); |
| 701 | if (type) |
| 702 | return type; |
| 703 | |
| 704 | type = g_type_register_static(WEBKIT_TYPE_ACCESSIBLE, |
| 705 | atkTypeName, |
| 706 | &typeInfo, GTypeFlags(0)); |
| 707 | for (guint i = 0; i < G_N_ELEMENTS(AtkInterfacesInitFunctions); i++) { |
| 708 | if (interfaceMask & (1 << i)) |
| 709 | g_type_add_interface_static(type, |
| 710 | GetAtkInterfaceTypeFromWAIType(static_cast<WAIType>(i)), |
| 711 | &AtkInterfacesInitFunctions[i]); |
| 712 | } |
| 713 | |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 714 | return type; |
| 715 | } |
| 716 | |
| 717 | WebKitAccessible* webkit_accessible_new(AccessibilityObject* coreObject) |
| 718 | { |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 719 | GType type = getAccessibilityTypeFromObject(coreObject); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 720 | AtkObject* object = static_cast<AtkObject*>(g_object_new(type, NULL)); |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 721 | |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 722 | atk_object_initialize(object, coreObject); |
xan@webkit.org | e438710 | 2009-04-09 11:08:48 +0000 | [diff] [blame] | 723 | |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 724 | return WEBKIT_ACCESSIBLE(object); |
| 725 | } |
| 726 | |
| 727 | AccessibilityObject* webkit_accessible_get_accessibility_object(WebKitAccessible* accessible) |
| 728 | { |
| 729 | return accessible->m_object; |
| 730 | } |
| 731 | |
| 732 | void webkit_accessible_detach(WebKitAccessible* accessible) |
| 733 | { |
alp@webkit.org | c773899 | 2008-05-27 02:48:14 +0000 | [diff] [blame] | 734 | ASSERT(accessible->m_object); |
| 735 | |
| 736 | // We replace the WebCore AccessibilityObject with a fallback object that |
| 737 | // provides default implementations to avoid repetitive null-checking after |
| 738 | // detachment. |
xan@webkit.org | c886cc6 | 2009-04-09 11:17:48 +0000 | [diff] [blame^] | 739 | accessible->m_object = fallbackObject(); |
alp@webkit.org | 3a5e7ca | 2008-05-20 01:12:20 +0000 | [diff] [blame] | 740 | } |
| 741 | |
| 742 | } |
| 743 | |
ddkilzer@apple.com | 8d87863 | 2008-11-09 19:50:37 +0000 | [diff] [blame] | 744 | #endif // HAVE(ACCESSIBILITY) |