1 | /* |
2 | * Copyright (C) 2008 Nuanti Ltd. |
3 | * Copyright (C) 2009 Jan Alonzo |
4 | * Copyright (C) 2009, 2010, 2011, 2012, 2019 Igalia S.L. |
5 | * Copyright (C) 2013 Samsung Electronics |
6 | * |
7 | * Portions from Mozilla a11y, copyright as follows: |
8 | * |
9 | * The Original Code is mozilla.org code. |
10 | * |
11 | * The Initial Developer of the Original Code is |
12 | * Sun Microsystems, Inc. |
13 | * Portions created by the Initial Developer are Copyright (C) 2002 |
14 | * the Initial Developer. All Rights Reserved. |
15 | * |
16 | * This library is free software; you can redistribute it and/or |
17 | * modify it under the terms of the GNU Library General Public |
18 | * License as published by the Free Software Foundation; either |
19 | * version 2 of the License, or (at your option) any later version. |
20 | * |
21 | * This library is distributed in the hope that it will be useful, |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
24 | * Library General Public License for more details. |
25 | * |
26 | * You should have received a copy of the GNU Library General Public License |
27 | * along with this library; see the file COPYING.LIB. If not, write to |
28 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
29 | * Boston, MA 02110-1301, USA. |
30 | */ |
31 | |
32 | #include "config.h" |
33 | #include "WebKitAccessible.h" |
34 | |
35 | #if HAVE(ACCESSIBILITY) |
36 | |
37 | #include "AXObjectCache.h" |
38 | #include "AccessibilityList.h" |
39 | #include "AccessibilityListBoxOption.h" |
40 | #include "AccessibilityTable.h" |
41 | #include "AccessibilityTableCell.h" |
42 | #include "AccessibilityTableRow.h" |
43 | #include "Document.h" |
44 | #include "Editing.h" |
45 | #include "Frame.h" |
46 | #include "FrameView.h" |
47 | #include "HTMLNames.h" |
48 | #include "HTMLTableElement.h" |
49 | #include "HostWindow.h" |
50 | #include "RenderAncestorIterator.h" |
51 | #include "RenderBlock.h" |
52 | #include "RenderObject.h" |
53 | #include "SVGElement.h" |
54 | #include "Settings.h" |
55 | #include "TextIterator.h" |
56 | #include "VisibleUnits.h" |
57 | #include "WebKitAccessibleHyperlink.h" |
58 | #include "WebKitAccessibleInterfaceAction.h" |
59 | #include "WebKitAccessibleInterfaceComponent.h" |
60 | #include "WebKitAccessibleInterfaceDocument.h" |
61 | #include "WebKitAccessibleInterfaceEditableText.h" |
62 | #include "WebKitAccessibleInterfaceHyperlinkImpl.h" |
63 | #include "WebKitAccessibleInterfaceHypertext.h" |
64 | #include "WebKitAccessibleInterfaceImage.h" |
65 | #include "WebKitAccessibleInterfaceSelection.h" |
66 | #include "WebKitAccessibleInterfaceTable.h" |
67 | #include "WebKitAccessibleInterfaceTableCell.h" |
68 | #include "WebKitAccessibleInterfaceText.h" |
69 | #include "WebKitAccessibleInterfaceValue.h" |
70 | #include "WebKitAccessibleUtil.h" |
71 | #include <glib/gprintf.h> |
72 | #include <wtf/glib/WTFGType.h> |
73 | #include <wtf/text/CString.h> |
74 | |
75 | using namespace WebCore; |
76 | |
77 | struct _WebKitAccessiblePrivate { |
78 | AccessibilityObject* object; |
79 | |
80 | // Cached data for AtkObject. |
81 | CString accessibleName; |
82 | CString accessibleDescription; |
83 | |
84 | // Cached data for AtkAction. |
85 | CString actionName; |
86 | CString actionKeyBinding; |
87 | |
88 | // Cached data for AtkDocument. |
89 | CString documentLocale; |
90 | CString documentType; |
91 | CString documentEncoding; |
92 | CString documentURI; |
93 | |
94 | // Cached data for AtkImage. |
95 | CString imageDescription; |
96 | }; |
97 | |
98 | WEBKIT_DEFINE_TYPE(WebKitAccessible, webkit_accessible, ATK_TYPE_OBJECT) |
99 | |
100 | static AccessibilityObject* fallbackObject() |
101 | { |
102 | static AccessibilityObject* object = &AccessibilityListBoxOption::create().leakRef(); |
103 | return object; |
104 | } |
105 | |
106 | static const gchar* webkitAccessibleGetName(AtkObject* object) |
107 | { |
108 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
109 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
110 | |
111 | Vector<AccessibilityText> textOrder; |
112 | accessible->priv->object->accessibilityText(textOrder); |
113 | |
114 | for (const auto& text : textOrder) { |
115 | // FIXME: This check is here because AccessibilityNodeObject::titleElementText() |
116 | // appends an empty String for the LabelByElementText source when there is a |
117 | // titleUIElement(). Removing this check makes some fieldsets lose their name. |
118 | if (text.text.isEmpty()) |
119 | continue; |
120 | |
121 | // WebCore Accessibility should provide us with the text alternative computation |
122 | // in the order defined by that spec. So take the first thing that our platform |
123 | // does not expose via the AtkObject description. |
124 | if (text.textSource != AccessibilityTextSource::Help && text.textSource != AccessibilityTextSource::Summary) |
125 | return webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedAccessibleName, text.text.utf8()); |
126 | } |
127 | |
128 | return webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedAccessibleName, "" ); |
129 | } |
130 | |
131 | static const gchar* webkitAccessibleGetDescription(AtkObject* object) |
132 | { |
133 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
134 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
135 | |
136 | Vector<AccessibilityText> textOrder; |
137 | accessible->priv->object->accessibilityText(textOrder); |
138 | |
139 | bool nameTextAvailable = false; |
140 | for (const auto& text : textOrder) { |
141 | // WebCore Accessibility should provide us with the text alternative computation |
142 | // in the order defined by that spec. So take the first thing that our platform |
143 | // does not expose via the AtkObject name. |
144 | if (text.textSource == AccessibilityTextSource::Help || text.textSource == AccessibilityTextSource::Summary) |
145 | return webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedAccessibleDescription, text.text.utf8()); |
146 | |
147 | // If there is no other text alternative, the title tag contents will have been |
148 | // used for the AtkObject name. We don't want to duplicate it here. |
149 | if (text.textSource == AccessibilityTextSource::TitleTag && nameTextAvailable) |
150 | return webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedAccessibleDescription, text.text.utf8()); |
151 | |
152 | nameTextAvailable = true; |
153 | } |
154 | |
155 | return webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedAccessibleDescription, "" ); |
156 | } |
157 | |
158 | static void removeAtkRelationByType(AtkRelationSet* relationSet, AtkRelationType relationType) |
159 | { |
160 | int count = atk_relation_set_get_n_relations(relationSet); |
161 | for (int i = 0; i < count; i++) { |
162 | AtkRelation* relation = atk_relation_set_get_relation(relationSet, i); |
163 | if (atk_relation_get_relation_type(relation) == relationType) { |
164 | atk_relation_set_remove(relationSet, relation); |
165 | break; |
166 | } |
167 | } |
168 | } |
169 | |
170 | static void setAtkRelationSetFromCoreObject(AccessibilityObject* coreObject, AtkRelationSet* relationSet) |
171 | { |
172 | // Elements with aria-labelledby should have the labelled-by relation as per the ARIA AAM spec. |
173 | // Controls with a label element and fieldsets with a legend element should also use this relation |
174 | // as per the HTML AAM spec. The reciprocal label-for relation should also be used. |
175 | removeAtkRelationByType(relationSet, ATK_RELATION_LABELLED_BY); |
176 | removeAtkRelationByType(relationSet, ATK_RELATION_LABEL_FOR); |
177 | if (coreObject->isControl()) { |
178 | if (AccessibilityObject* label = coreObject->correspondingLabelForControlElement()) |
179 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_LABELLED_BY, ATK_OBJECT(label->wrapper())); |
180 | } else if (coreObject->isFieldset()) { |
181 | if (AccessibilityObject* label = coreObject->titleUIElement()) |
182 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_LABELLED_BY, ATK_OBJECT(label->wrapper())); |
183 | } else if (coreObject->roleValue() == AccessibilityRole::Legend) { |
184 | if (RenderBlock* renderFieldset = ancestorsOfType<RenderBlock>(*coreObject->renderer()).first()) { |
185 | if (renderFieldset->isFieldset()) { |
186 | AccessibilityObject* fieldset = coreObject->axObjectCache()->getOrCreate(renderFieldset); |
187 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_LABEL_FOR, ATK_OBJECT(fieldset->wrapper())); |
188 | } |
189 | } |
190 | } else if (AccessibilityObject* control = coreObject->correspondingControlForLabelElement()) |
191 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_LABEL_FOR, ATK_OBJECT(control->wrapper())); |
192 | else { |
193 | AccessibilityObject::AccessibilityChildrenVector ariaLabelledByElements; |
194 | coreObject->ariaLabelledByElements(ariaLabelledByElements); |
195 | for (const auto& accessibilityObject : ariaLabelledByElements) |
196 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_LABELLED_BY, ATK_OBJECT(accessibilityObject->wrapper())); |
197 | } |
198 | |
199 | // Elements referenced by aria-labelledby should have the label-for relation as per the ARIA AAM spec. |
200 | AccessibilityObject::AccessibilityChildrenVector labels; |
201 | coreObject->ariaLabelledByReferencingElements(labels); |
202 | for (const auto& accessibilityObject : labels) |
203 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_LABEL_FOR, ATK_OBJECT(accessibilityObject->wrapper())); |
204 | |
205 | // Elements with aria-flowto should have the flows-to relation as per the ARIA AAM spec. |
206 | removeAtkRelationByType(relationSet, ATK_RELATION_FLOWS_TO); |
207 | AccessibilityObject::AccessibilityChildrenVector ariaFlowToElements; |
208 | coreObject->ariaFlowToElements(ariaFlowToElements); |
209 | for (const auto& accessibilityObject : ariaFlowToElements) |
210 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_FLOWS_TO, ATK_OBJECT(accessibilityObject->wrapper())); |
211 | |
212 | // Elements referenced by aria-flowto should have the flows-from relation as per the ARIA AAM spec. |
213 | removeAtkRelationByType(relationSet, ATK_RELATION_FLOWS_FROM); |
214 | AccessibilityObject::AccessibilityChildrenVector flowFrom; |
215 | coreObject->ariaFlowToReferencingElements(flowFrom); |
216 | for (const auto& accessibilityObject : flowFrom) |
217 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_FLOWS_FROM, ATK_OBJECT(accessibilityObject->wrapper())); |
218 | |
219 | // Elements with aria-describedby should have the described-by relation as per the ARIA AAM spec. |
220 | removeAtkRelationByType(relationSet, ATK_RELATION_DESCRIBED_BY); |
221 | AccessibilityObject::AccessibilityChildrenVector ariaDescribedByElements; |
222 | coreObject->ariaDescribedByElements(ariaDescribedByElements); |
223 | for (const auto& accessibilityObject : ariaDescribedByElements) |
224 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_DESCRIBED_BY, ATK_OBJECT(accessibilityObject->wrapper())); |
225 | |
226 | // Elements referenced by aria-describedby should have the description-for relation as per the ARIA AAM spec. |
227 | removeAtkRelationByType(relationSet, ATK_RELATION_DESCRIPTION_FOR); |
228 | AccessibilityObject::AccessibilityChildrenVector describers; |
229 | coreObject->ariaDescribedByReferencingElements(describers); |
230 | for (const auto& accessibilityObject : describers) |
231 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_DESCRIPTION_FOR, ATK_OBJECT(accessibilityObject->wrapper())); |
232 | |
233 | // Elements with aria-controls should have the controller-for relation as per the ARIA AAM spec. |
234 | removeAtkRelationByType(relationSet, ATK_RELATION_CONTROLLER_FOR); |
235 | AccessibilityObject::AccessibilityChildrenVector ariaControls; |
236 | coreObject->ariaControlsElements(ariaControls); |
237 | for (const auto& accessibilityObject : ariaControls) |
238 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_CONTROLLER_FOR, ATK_OBJECT(accessibilityObject->wrapper())); |
239 | |
240 | // Elements referenced by aria-controls should have the controlled-by relation as per the ARIA AAM spec. |
241 | removeAtkRelationByType(relationSet, ATK_RELATION_CONTROLLED_BY); |
242 | AccessibilityObject::AccessibilityChildrenVector controllers; |
243 | coreObject->ariaControlsReferencingElements(controllers); |
244 | for (const auto& accessibilityObject : controllers) |
245 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_CONTROLLED_BY, ATK_OBJECT(accessibilityObject->wrapper())); |
246 | |
247 | // Elements with aria-owns should have the node-parent-of relation as per the ARIA AAM spec. |
248 | removeAtkRelationByType(relationSet, ATK_RELATION_NODE_PARENT_OF); |
249 | AccessibilityObject::AccessibilityChildrenVector ariaOwns; |
250 | coreObject->ariaOwnsElements(ariaOwns); |
251 | for (const auto& accessibilityObject : ariaOwns) |
252 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_NODE_PARENT_OF, ATK_OBJECT(accessibilityObject->wrapper())); |
253 | |
254 | // Elements referenced by aria-owns should have the node-child-of relation as per the ARIA AAM spec. |
255 | removeAtkRelationByType(relationSet, ATK_RELATION_NODE_CHILD_OF); |
256 | AccessibilityObject::AccessibilityChildrenVector owners; |
257 | coreObject->ariaOwnsReferencingElements(owners); |
258 | for (const auto& accessibilityObject : owners) |
259 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_NODE_CHILD_OF, ATK_OBJECT(accessibilityObject->wrapper())); |
260 | |
261 | #if ATK_CHECK_VERSION(2, 25, 2) |
262 | // Elements with aria-details should have the details relation as per the ARIA AAM spec. |
263 | removeAtkRelationByType(relationSet, ATK_RELATION_DETAILS); |
264 | AccessibilityObject::AccessibilityChildrenVector ariaDetails; |
265 | coreObject->ariaDetailsElements(ariaDetails); |
266 | for (const auto& accessibilityObject : ariaDetails) |
267 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_DETAILS, ATK_OBJECT(accessibilityObject->wrapper())); |
268 | |
269 | // Elements referenced by aria-details should have the details-for relation as per the ARIA AAM spec. |
270 | removeAtkRelationByType(relationSet, ATK_RELATION_DETAILS_FOR); |
271 | AccessibilityObject::AccessibilityChildrenVector details; |
272 | coreObject->ariaDetailsReferencingElements(details); |
273 | for (const auto& accessibilityObject : details) |
274 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_DETAILS_FOR, ATK_OBJECT(accessibilityObject->wrapper())); |
275 | |
276 | // Elements with aria-errormessage should have the error-message relation as per the ARIA AAM spec. |
277 | removeAtkRelationByType(relationSet, ATK_RELATION_ERROR_MESSAGE); |
278 | AccessibilityObject::AccessibilityChildrenVector ariaErrorMessage; |
279 | coreObject->ariaErrorMessageElements(ariaErrorMessage); |
280 | for (const auto& accessibilityObject : ariaErrorMessage) |
281 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_ERROR_MESSAGE, ATK_OBJECT(accessibilityObject->wrapper())); |
282 | |
283 | // Elements referenced by aria-errormessage should have the error-for relation as per the ARIA AAM spec. |
284 | removeAtkRelationByType(relationSet, ATK_RELATION_ERROR_FOR); |
285 | AccessibilityObject::AccessibilityChildrenVector errors; |
286 | coreObject->ariaErrorMessageReferencingElements(errors); |
287 | for (const auto& accessibilityObject : errors) |
288 | atk_relation_set_add_relation_by_type(relationSet, ATK_RELATION_ERROR_FOR, ATK_OBJECT(accessibilityObject->wrapper())); |
289 | #endif |
290 | } |
291 | |
292 | static bool isRootObject(AccessibilityObject* coreObject) |
293 | { |
294 | // The root accessible object in WebCore is always an object with |
295 | // the ScrolledArea role with one child with the WebArea role. |
296 | if (!coreObject || !coreObject->isScrollView()) |
297 | return false; |
298 | |
299 | AccessibilityObject* firstChild = coreObject->firstChild(); |
300 | return firstChild && firstChild->isWebArea(); |
301 | } |
302 | |
303 | static AtkObject* webkitAccessibleGetParent(AtkObject* object) |
304 | { |
305 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
306 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
307 | |
308 | // Check first if the parent has been already set. |
309 | AtkObject* accessibleParent = ATK_OBJECT_CLASS(webkit_accessible_parent_class)->get_parent(object); |
310 | if (accessibleParent) |
311 | return accessibleParent; |
312 | |
313 | // Parent not set yet, so try to find it in the hierarchy. |
314 | auto* coreObject = accessible->priv->object; |
315 | auto* coreParent = coreObject->parentObjectUnignored(); |
316 | if (!coreParent && isRootObject(coreObject)) { |
317 | // The top level object claims to not have a parent. This makes it |
318 | // impossible for assistive technologies to ascend the accessible |
319 | // hierarchy all the way to the application. (Bug 30489) |
320 | if (!coreObject->document()) |
321 | return nullptr; |
322 | } |
323 | |
324 | return coreParent ? ATK_OBJECT(coreParent->wrapper()) : nullptr; |
325 | } |
326 | |
327 | static gint webkitAccessibleGetNChildren(AtkObject* object) |
328 | { |
329 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
330 | returnValIfWebKitAccessibleIsInvalid(accessible, 0); |
331 | |
332 | return accessible->priv->object->children().size(); |
333 | } |
334 | |
335 | static AtkObject* webkitAccessibleRefChild(AtkObject* object, gint index) |
336 | { |
337 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
338 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
339 | |
340 | if (index < 0) |
341 | return nullptr; |
342 | |
343 | const auto& children = accessible->priv->object->children(); |
344 | if (static_cast<size_t>(index) >= children.size()) |
345 | return nullptr; |
346 | |
347 | auto& coreChild = children[index]; |
348 | if (!coreChild) |
349 | return nullptr; |
350 | |
351 | auto* child = coreChild->wrapper(); |
352 | if (!child) |
353 | return nullptr; |
354 | |
355 | atk_object_set_parent(ATK_OBJECT(child), object); |
356 | return ATK_OBJECT(g_object_ref(child)); |
357 | } |
358 | |
359 | static gint webkitAccessibleGetIndexInParent(AtkObject* object) |
360 | { |
361 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
362 | returnValIfWebKitAccessibleIsInvalid(accessible, -1); |
363 | |
364 | auto* coreObject = accessible->priv->object; |
365 | auto* parent = coreObject->parentObjectUnignored(); |
366 | if (!parent && isRootObject(coreObject)) { |
367 | if (!coreObject->document()) |
368 | return -1; |
369 | |
370 | auto* atkParent = parent ? ATK_OBJECT(parent->wrapper()) : nullptr; |
371 | if (!atkParent) |
372 | return -1; |
373 | |
374 | unsigned count = atk_object_get_n_accessible_children(atkParent); |
375 | for (unsigned i = 0; i < count; ++i) { |
376 | GRefPtr<AtkObject> child = adoptGRef(atk_object_ref_accessible_child(atkParent, i)); |
377 | if (child.get() == object) |
378 | return i; |
379 | } |
380 | } |
381 | |
382 | if (!parent) |
383 | return -1; |
384 | |
385 | size_t index = parent->children().find(coreObject); |
386 | return (index == WTF::notFound) ? -1 : index; |
387 | } |
388 | |
389 | static AtkAttributeSet* webkitAccessibleGetAttributes(AtkObject* object) |
390 | { |
391 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
392 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
393 | |
394 | AtkAttributeSet* attributeSet = nullptr; |
395 | #if PLATFORM(GTK) |
396 | attributeSet = addToAtkAttributeSet(attributeSet, "toolkit" , "WebKitGtk" ); |
397 | #endif |
398 | |
399 | auto* coreObject = accessible->priv->object; |
400 | |
401 | // Hack needed for WebKit2 tests because obtaining an element by its ID |
402 | // cannot be done from the UIProcess. Assistive technologies have no need |
403 | // for this information. |
404 | Element* element = coreObject->element() ? coreObject->element() : coreObject->actionElement(); |
405 | if (element) { |
406 | String tagName = element->tagName(); |
407 | if (!tagName.isEmpty()) |
408 | attributeSet = addToAtkAttributeSet(attributeSet, "tag" , tagName.convertToASCIILowercase().utf8().data()); |
409 | String id = element->getIdAttribute().string(); |
410 | if (!id.isEmpty()) |
411 | attributeSet = addToAtkAttributeSet(attributeSet, "html-id" , id.utf8().data()); |
412 | } |
413 | |
414 | int level = coreObject->isHeading() ? coreObject->headingLevel() : coreObject->hierarchicalLevel(); |
415 | if (level) { |
416 | String value = String::number(level); |
417 | attributeSet = addToAtkAttributeSet(attributeSet, "level" , value.utf8().data()); |
418 | } |
419 | |
420 | if (coreObject->roleValue() == AccessibilityRole::MathElement) { |
421 | if (coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PreSuperscript) || coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PreSubscript)) |
422 | attributeSet = addToAtkAttributeSet(attributeSet, "multiscript-type" , "pre" ); |
423 | else if (coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PostSuperscript) || coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PostSubscript)) |
424 | attributeSet = addToAtkAttributeSet(attributeSet, "multiscript-type" , "post" ); |
425 | } |
426 | |
427 | if (is<AccessibilityTable>(*coreObject) && downcast<AccessibilityTable>(*coreObject).isExposableThroughAccessibility()) { |
428 | auto& table = downcast<AccessibilityTable>(*coreObject); |
429 | int rowCount = table.axRowCount(); |
430 | if (rowCount) |
431 | attributeSet = addToAtkAttributeSet(attributeSet, "rowcount" , String::number(rowCount).utf8().data()); |
432 | |
433 | int columnCount = table.axColumnCount(); |
434 | if (columnCount) |
435 | attributeSet = addToAtkAttributeSet(attributeSet, "colcount" , String::number(columnCount).utf8().data()); |
436 | } else if (is<AccessibilityTableRow>(*coreObject)) { |
437 | auto& row = downcast<AccessibilityTableRow>(*coreObject); |
438 | int rowIndex = row.axRowIndex(); |
439 | if (rowIndex != -1) |
440 | attributeSet = addToAtkAttributeSet(attributeSet, "rowindex" , String::number(rowIndex).utf8().data()); |
441 | } else if (is<AccessibilityTableCell>(*coreObject)) { |
442 | auto& cell = downcast<AccessibilityTableCell>(*coreObject); |
443 | int rowIndex = cell.axRowIndex(); |
444 | if (rowIndex != -1) |
445 | attributeSet = addToAtkAttributeSet(attributeSet, "rowindex" , String::number(rowIndex).utf8().data()); |
446 | |
447 | int columnIndex = cell.axColumnIndex(); |
448 | if (columnIndex != -1) |
449 | attributeSet = addToAtkAttributeSet(attributeSet, "colindex" , String::number(columnIndex).utf8().data()); |
450 | |
451 | int rowSpan = cell.axRowSpan(); |
452 | if (rowSpan != -1) |
453 | attributeSet = addToAtkAttributeSet(attributeSet, "rowspan" , String::number(rowSpan).utf8().data()); |
454 | |
455 | int columnSpan = cell.axColumnSpan(); |
456 | if (columnSpan != -1) |
457 | attributeSet = addToAtkAttributeSet(attributeSet, "colspan" , String::number(columnSpan).utf8().data()); |
458 | } |
459 | |
460 | String placeholder = coreObject->placeholderValue(); |
461 | if (!placeholder.isEmpty()) |
462 | attributeSet = addToAtkAttributeSet(attributeSet, "placeholder-text" , placeholder.utf8().data()); |
463 | |
464 | if (coreObject->supportsAutoComplete()) |
465 | attributeSet = addToAtkAttributeSet(attributeSet, "autocomplete" , coreObject->autoCompleteValue().utf8().data()); |
466 | |
467 | if (coreObject->supportsHasPopup()) |
468 | attributeSet = addToAtkAttributeSet(attributeSet, "haspopup" , coreObject->hasPopupValue().utf8().data()); |
469 | |
470 | if (coreObject->supportsCurrent()) |
471 | attributeSet = addToAtkAttributeSet(attributeSet, "current" , coreObject->currentValue().utf8().data()); |
472 | |
473 | // The Core AAM states that an explicitly-set value should be exposed, including "none". |
474 | if (coreObject->hasAttribute(HTMLNames::aria_sortAttr)) { |
475 | switch (coreObject->sortDirection()) { |
476 | case AccessibilitySortDirection::Invalid: |
477 | break; |
478 | case AccessibilitySortDirection::Ascending: |
479 | attributeSet = addToAtkAttributeSet(attributeSet, "sort" , "ascending" ); |
480 | break; |
481 | case AccessibilitySortDirection::Descending: |
482 | attributeSet = addToAtkAttributeSet(attributeSet, "sort" , "descending" ); |
483 | break; |
484 | case AccessibilitySortDirection::Other: |
485 | attributeSet = addToAtkAttributeSet(attributeSet, "sort" , "other" ); |
486 | break; |
487 | case AccessibilitySortDirection::None: |
488 | attributeSet = addToAtkAttributeSet(attributeSet, "sort" , "none" ); |
489 | } |
490 | } |
491 | |
492 | if (coreObject->supportsPosInSet()) |
493 | attributeSet = addToAtkAttributeSet(attributeSet, "posinset" , String::number(coreObject->posInSet()).utf8().data()); |
494 | |
495 | if (coreObject->supportsSetSize()) |
496 | attributeSet = addToAtkAttributeSet(attributeSet, "setsize" , String::number(coreObject->setSize()).utf8().data()); |
497 | |
498 | String isReadOnly = coreObject->readOnlyValue(); |
499 | if (!isReadOnly.isEmpty()) |
500 | attributeSet = addToAtkAttributeSet(attributeSet, "readonly" , isReadOnly.utf8().data()); |
501 | |
502 | String valueDescription = coreObject->valueDescription(); |
503 | if (!valueDescription.isEmpty()) |
504 | attributeSet = addToAtkAttributeSet(attributeSet, "valuetext" , valueDescription.utf8().data()); |
505 | |
506 | // According to the W3C Core Accessibility API Mappings 1.1, section 5.4.1 General Rules: |
507 | // "User agents must expose the WAI-ARIA role string if the API supports a mechanism to do so." |
508 | // In the case of ATK, the mechanism to do so is an object attribute pair (xml-roles:"string"). |
509 | // We cannot use the computedRoleString for this purpose because it is not limited to elements |
510 | // with ARIA roles, and it might not contain the actual ARIA role value (e.g. DPub ARIA). |
511 | String roleString = coreObject->getAttribute(HTMLNames::roleAttr); |
512 | if (!roleString.isEmpty()) |
513 | attributeSet = addToAtkAttributeSet(attributeSet, "xml-roles" , roleString.utf8().data()); |
514 | |
515 | String computedRoleString = coreObject->computedRoleString(); |
516 | if (!computedRoleString.isEmpty()) { |
517 | attributeSet = addToAtkAttributeSet(attributeSet, "computed-role" , computedRoleString.utf8().data()); |
518 | |
519 | // The HTML AAM maps several elements to ARIA landmark roles. In order for the type of landmark |
520 | // to be obtainable in the same fashion as an ARIA landmark, fall back on the computedRoleString. |
521 | if (coreObject->ariaRoleAttribute() == AccessibilityRole::Unknown && coreObject->isLandmark()) |
522 | attributeSet = addToAtkAttributeSet(attributeSet, "xml-roles" , computedRoleString.utf8().data()); |
523 | } |
524 | |
525 | String roleDescription = coreObject->roleDescription(); |
526 | if (!roleDescription.isEmpty()) |
527 | attributeSet = addToAtkAttributeSet(attributeSet, "roledescription" , roleDescription.utf8().data()); |
528 | |
529 | // We need to expose the live region attributes even if the live region is currently disabled/off. |
530 | if (auto liveContainer = coreObject->liveRegionAncestor(false)) { |
531 | String liveStatus = liveContainer->liveRegionStatus(); |
532 | String relevant = liveContainer->liveRegionRelevant(); |
533 | bool isAtomic = liveContainer->liveRegionAtomic(); |
534 | String liveRole = roleString.isEmpty() ? computedRoleString : roleString; |
535 | |
536 | // According to the Core AAM, we need to expose the above properties with "container-" prefixed |
537 | // object attributes regardless of whether the container is this object, or an ancestor of it. |
538 | attributeSet = addToAtkAttributeSet(attributeSet, "container-live" , liveStatus.utf8().data()); |
539 | attributeSet = addToAtkAttributeSet(attributeSet, "container-relevant" , relevant.utf8().data()); |
540 | if (isAtomic) |
541 | attributeSet = addToAtkAttributeSet(attributeSet, "container-atomic" , "true" ); |
542 | if (!liveRole.isEmpty()) |
543 | attributeSet = addToAtkAttributeSet(attributeSet, "container-live-role" , liveRole.utf8().data()); |
544 | |
545 | // According to the Core AAM, if this object is the live region (rather than its descendant), |
546 | // we must expose the above properties on the object without a "container-" prefix. |
547 | if (liveContainer == coreObject) { |
548 | attributeSet = addToAtkAttributeSet(attributeSet, "live" , liveStatus.utf8().data()); |
549 | attributeSet = addToAtkAttributeSet(attributeSet, "relevant" , relevant.utf8().data()); |
550 | if (isAtomic) |
551 | attributeSet = addToAtkAttributeSet(attributeSet, "atomic" , "true" ); |
552 | } else if (!isAtomic && coreObject->liveRegionAtomic()) |
553 | attributeSet = addToAtkAttributeSet(attributeSet, "atomic" , "true" ); |
554 | } |
555 | |
556 | // The Core AAM states the author-provided value should be exposed as-is. |
557 | String dropEffect = coreObject->getAttribute(HTMLNames::aria_dropeffectAttr); |
558 | if (!dropEffect.isEmpty()) |
559 | attributeSet = addToAtkAttributeSet(attributeSet, "dropeffect" , dropEffect.utf8().data()); |
560 | |
561 | if (coreObject->isARIAGrabbed()) |
562 | attributeSet = addToAtkAttributeSet(attributeSet, "grabbed" , "true" ); |
563 | else if (coreObject->supportsARIADragging()) |
564 | attributeSet = addToAtkAttributeSet(attributeSet, "grabbed" , "false" ); |
565 | |
566 | // The Core AAM states the author-provided value should be exposed as-is. |
567 | const AtomicString& keyShortcuts = coreObject->keyShortcutsValue(); |
568 | if (!keyShortcuts.isEmpty()) |
569 | attributeSet = addToAtkAttributeSet(attributeSet, "keyshortcuts" , keyShortcuts.string().utf8().data()); |
570 | |
571 | return attributeSet; |
572 | } |
573 | |
574 | static AtkRole atkRole(AccessibilityObject* coreObject) |
575 | { |
576 | switch (coreObject->roleValue()) { |
577 | case AccessibilityRole::ApplicationAlert: |
578 | return ATK_ROLE_ALERT; |
579 | case AccessibilityRole::ApplicationAlertDialog: |
580 | case AccessibilityRole::ApplicationDialog: |
581 | return ATK_ROLE_DIALOG; |
582 | case AccessibilityRole::ApplicationStatus: |
583 | return ATK_ROLE_STATUSBAR; |
584 | case AccessibilityRole::Unknown: |
585 | return ATK_ROLE_UNKNOWN; |
586 | case AccessibilityRole::Audio: |
587 | #if ATK_CHECK_VERSION(2, 11, 3) |
588 | return ATK_ROLE_AUDIO; |
589 | #endif |
590 | case AccessibilityRole::Video: |
591 | #if ATK_CHECK_VERSION(2, 11, 3) |
592 | return ATK_ROLE_VIDEO; |
593 | #endif |
594 | return ATK_ROLE_EMBEDDED; |
595 | case AccessibilityRole::Button: |
596 | return ATK_ROLE_PUSH_BUTTON; |
597 | case AccessibilityRole::Switch: |
598 | case AccessibilityRole::ToggleButton: |
599 | return ATK_ROLE_TOGGLE_BUTTON; |
600 | case AccessibilityRole::RadioButton: |
601 | return ATK_ROLE_RADIO_BUTTON; |
602 | case AccessibilityRole::CheckBox: |
603 | return ATK_ROLE_CHECK_BOX; |
604 | case AccessibilityRole::Slider: |
605 | return ATK_ROLE_SLIDER; |
606 | case AccessibilityRole::TabGroup: |
607 | case AccessibilityRole::TabList: |
608 | return ATK_ROLE_PAGE_TAB_LIST; |
609 | case AccessibilityRole::TextField: |
610 | case AccessibilityRole::TextArea: |
611 | case AccessibilityRole::SearchField: |
612 | return ATK_ROLE_ENTRY; |
613 | case AccessibilityRole::StaticText: |
614 | #if ATK_CHECK_VERSION(2, 15, 2) |
615 | return ATK_ROLE_STATIC; |
616 | #else |
617 | return ATK_ROLE_TEXT; |
618 | #endif |
619 | case AccessibilityRole::Outline: |
620 | case AccessibilityRole::Tree: |
621 | return ATK_ROLE_TREE; |
622 | case AccessibilityRole::TreeItem: |
623 | return ATK_ROLE_TREE_ITEM; |
624 | case AccessibilityRole::MenuBar: |
625 | return ATK_ROLE_MENU_BAR; |
626 | case AccessibilityRole::MenuListPopup: |
627 | case AccessibilityRole::Menu: |
628 | return ATK_ROLE_MENU; |
629 | case AccessibilityRole::MenuListOption: |
630 | case AccessibilityRole::MenuItem: |
631 | case AccessibilityRole::MenuButton: |
632 | return ATK_ROLE_MENU_ITEM; |
633 | case AccessibilityRole::MenuItemCheckbox: |
634 | return ATK_ROLE_CHECK_MENU_ITEM; |
635 | case AccessibilityRole::MenuItemRadio: |
636 | return ATK_ROLE_RADIO_MENU_ITEM; |
637 | case AccessibilityRole::Column: |
638 | // return ATK_ROLE_TABLE_COLUMN_HEADER; // Is this right? |
639 | return ATK_ROLE_UNKNOWN; // Matches Mozilla |
640 | case AccessibilityRole::Row: |
641 | return ATK_ROLE_TABLE_ROW; |
642 | case AccessibilityRole::Toolbar: |
643 | return ATK_ROLE_TOOL_BAR; |
644 | case AccessibilityRole::Meter: |
645 | return ATK_ROLE_LEVEL_BAR; |
646 | case AccessibilityRole::BusyIndicator: |
647 | case AccessibilityRole::ProgressIndicator: |
648 | return ATK_ROLE_PROGRESS_BAR; |
649 | case AccessibilityRole::Window: |
650 | return ATK_ROLE_WINDOW; |
651 | case AccessibilityRole::PopUpButton: |
652 | return coreObject->hasPopup() ? ATK_ROLE_PUSH_BUTTON : ATK_ROLE_COMBO_BOX; |
653 | case AccessibilityRole::ComboBox: |
654 | return ATK_ROLE_COMBO_BOX; |
655 | case AccessibilityRole::SplitGroup: |
656 | return ATK_ROLE_SPLIT_PANE; |
657 | case AccessibilityRole::Splitter: |
658 | return ATK_ROLE_SEPARATOR; |
659 | case AccessibilityRole::ColorWell: |
660 | #if PLATFORM(GTK) |
661 | // ATK_ROLE_COLOR_CHOOSER is defined as a dialog (i.e. it's what appears when you push the button). |
662 | return ATK_ROLE_PUSH_BUTTON; |
663 | #endif |
664 | case AccessibilityRole::List: |
665 | return ATK_ROLE_LIST; |
666 | case AccessibilityRole::ScrollBar: |
667 | return ATK_ROLE_SCROLL_BAR; |
668 | case AccessibilityRole::ScrollArea: |
669 | case AccessibilityRole::TabPanel: |
670 | return ATK_ROLE_SCROLL_PANE; |
671 | case AccessibilityRole::Grid: |
672 | case AccessibilityRole::Table: |
673 | return ATK_ROLE_TABLE; |
674 | case AccessibilityRole::TreeGrid: |
675 | return ATK_ROLE_TREE_TABLE; |
676 | case AccessibilityRole::Application: |
677 | return ATK_ROLE_APPLICATION; |
678 | case AccessibilityRole::ApplicationGroup: |
679 | case AccessibilityRole::Feed: |
680 | case AccessibilityRole::Figure: |
681 | case AccessibilityRole::GraphicsObject: |
682 | case AccessibilityRole::Group: |
683 | case AccessibilityRole::RadioGroup: |
684 | case AccessibilityRole::SVGRoot: |
685 | return ATK_ROLE_PANEL; |
686 | case AccessibilityRole::RowHeader: |
687 | return ATK_ROLE_ROW_HEADER; |
688 | case AccessibilityRole::ColumnHeader: |
689 | return ATK_ROLE_COLUMN_HEADER; |
690 | case AccessibilityRole::Caption: |
691 | return ATK_ROLE_CAPTION; |
692 | case AccessibilityRole::Cell: |
693 | case AccessibilityRole::GridCell: |
694 | return coreObject->inheritsPresentationalRole() ? ATK_ROLE_SECTION : ATK_ROLE_TABLE_CELL; |
695 | case AccessibilityRole::Link: |
696 | case AccessibilityRole::WebCoreLink: |
697 | case AccessibilityRole::ImageMapLink: |
698 | return ATK_ROLE_LINK; |
699 | case AccessibilityRole::ImageMap: |
700 | return ATK_ROLE_IMAGE_MAP; |
701 | case AccessibilityRole::GraphicsSymbol: |
702 | case AccessibilityRole::Image: |
703 | return ATK_ROLE_IMAGE; |
704 | case AccessibilityRole::ListMarker: |
705 | return ATK_ROLE_TEXT; |
706 | case AccessibilityRole::DocumentArticle: |
707 | #if ATK_CHECK_VERSION(2, 11, 3) |
708 | return ATK_ROLE_ARTICLE; |
709 | #endif |
710 | case AccessibilityRole::Document: |
711 | case AccessibilityRole::GraphicsDocument: |
712 | return ATK_ROLE_DOCUMENT_FRAME; |
713 | case AccessibilityRole::DocumentNote: |
714 | return ATK_ROLE_COMMENT; |
715 | case AccessibilityRole::Heading: |
716 | return ATK_ROLE_HEADING; |
717 | case AccessibilityRole::ListBox: |
718 | // https://rawgit.com/w3c/aria/master/core-aam/core-aam.html#role-map-listbox |
719 | return coreObject->isDescendantOfRole(AccessibilityRole::ComboBox) ? ATK_ROLE_MENU : ATK_ROLE_LIST_BOX; |
720 | case AccessibilityRole::ListItem: |
721 | return coreObject->inheritsPresentationalRole() ? ATK_ROLE_SECTION : ATK_ROLE_LIST_ITEM; |
722 | case AccessibilityRole::ListBoxOption: |
723 | return coreObject->isDescendantOfRole(AccessibilityRole::ComboBox) ? ATK_ROLE_MENU_ITEM : ATK_ROLE_LIST_ITEM; |
724 | case AccessibilityRole::Paragraph: |
725 | return ATK_ROLE_PARAGRAPH; |
726 | case AccessibilityRole::Label: |
727 | case AccessibilityRole::Legend: |
728 | return ATK_ROLE_LABEL; |
729 | case AccessibilityRole::Blockquote: |
730 | #if ATK_CHECK_VERSION(2, 11, 3) |
731 | return ATK_ROLE_BLOCK_QUOTE; |
732 | #endif |
733 | case AccessibilityRole::Footnote: |
734 | #if ATK_CHECK_VERSION(2, 25, 2) |
735 | return ATK_ROLE_FOOTNOTE; |
736 | #endif |
737 | case AccessibilityRole::ApplicationTextGroup: |
738 | case AccessibilityRole::Div: |
739 | case AccessibilityRole::Pre: |
740 | case AccessibilityRole::SVGText: |
741 | case AccessibilityRole::TextGroup: |
742 | return ATK_ROLE_SECTION; |
743 | case AccessibilityRole::Footer: |
744 | return ATK_ROLE_FOOTER; |
745 | case AccessibilityRole::Form: |
746 | #if ATK_CHECK_VERSION(2, 11, 3) |
747 | if (coreObject->ariaRoleAttribute() != AccessibilityRole::Unknown) |
748 | return ATK_ROLE_LANDMARK; |
749 | #endif |
750 | return ATK_ROLE_FORM; |
751 | case AccessibilityRole::Canvas: |
752 | return ATK_ROLE_CANVAS; |
753 | case AccessibilityRole::HorizontalRule: |
754 | return ATK_ROLE_SEPARATOR; |
755 | case AccessibilityRole::SpinButton: |
756 | return ATK_ROLE_SPIN_BUTTON; |
757 | case AccessibilityRole::Tab: |
758 | return ATK_ROLE_PAGE_TAB; |
759 | case AccessibilityRole::UserInterfaceTooltip: |
760 | return ATK_ROLE_TOOL_TIP; |
761 | case AccessibilityRole::WebArea: |
762 | return ATK_ROLE_DOCUMENT_WEB; |
763 | case AccessibilityRole::WebApplication: |
764 | return ATK_ROLE_EMBEDDED; |
765 | #if ATK_CHECK_VERSION(2, 11, 3) |
766 | case AccessibilityRole::ApplicationLog: |
767 | return ATK_ROLE_LOG; |
768 | case AccessibilityRole::ApplicationMarquee: |
769 | return ATK_ROLE_MARQUEE; |
770 | case AccessibilityRole::ApplicationTimer: |
771 | return ATK_ROLE_TIMER; |
772 | case AccessibilityRole::Definition: |
773 | return ATK_ROLE_DEFINITION; |
774 | case AccessibilityRole::DocumentMath: |
775 | return ATK_ROLE_MATH; |
776 | case AccessibilityRole::MathElement: |
777 | if (coreObject->isMathRow()) |
778 | return ATK_ROLE_PANEL; |
779 | if (coreObject->isMathTable()) |
780 | return ATK_ROLE_TABLE; |
781 | if (coreObject->isMathTableRow()) |
782 | return ATK_ROLE_TABLE_ROW; |
783 | if (coreObject->isMathTableCell()) |
784 | return ATK_ROLE_TABLE_CELL; |
785 | if (coreObject->isMathSubscriptSuperscript() || coreObject->isMathMultiscript()) |
786 | return ATK_ROLE_SECTION; |
787 | #if ATK_CHECK_VERSION(2, 15, 4) |
788 | if (coreObject->isMathFraction()) |
789 | return ATK_ROLE_MATH_FRACTION; |
790 | if (coreObject->isMathSquareRoot() || coreObject->isMathRoot()) |
791 | return ATK_ROLE_MATH_ROOT; |
792 | if (coreObject->isMathScriptObject(AccessibilityMathScriptObjectType::Subscript) |
793 | || coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PreSubscript) || coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PostSubscript)) |
794 | return ATK_ROLE_SUBSCRIPT; |
795 | if (coreObject->isMathScriptObject(AccessibilityMathScriptObjectType::Superscript) |
796 | || coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PreSuperscript) || coreObject->isMathMultiscriptObject(AccessibilityMathMultiscriptObjectType::PostSuperscript)) |
797 | return ATK_ROLE_SUPERSCRIPT; |
798 | #endif |
799 | #if ATK_CHECK_VERSION(2, 15, 2) |
800 | if (coreObject->isMathToken()) |
801 | return ATK_ROLE_STATIC; |
802 | #endif |
803 | return ATK_ROLE_UNKNOWN; |
804 | case AccessibilityRole::LandmarkBanner: |
805 | case AccessibilityRole::LandmarkComplementary: |
806 | case AccessibilityRole::LandmarkContentInfo: |
807 | case AccessibilityRole::LandmarkDocRegion: |
808 | case AccessibilityRole::LandmarkMain: |
809 | case AccessibilityRole::LandmarkNavigation: |
810 | case AccessibilityRole::LandmarkRegion: |
811 | case AccessibilityRole::LandmarkSearch: |
812 | return ATK_ROLE_LANDMARK; |
813 | #endif |
814 | #if ATK_CHECK_VERSION(2, 11, 4) |
815 | case AccessibilityRole::DescriptionList: |
816 | return ATK_ROLE_DESCRIPTION_LIST; |
817 | case AccessibilityRole::Term: |
818 | case AccessibilityRole::DescriptionListTerm: |
819 | return ATK_ROLE_DESCRIPTION_TERM; |
820 | case AccessibilityRole::DescriptionListDetail: |
821 | return ATK_ROLE_DESCRIPTION_VALUE; |
822 | #endif |
823 | case AccessibilityRole::Inline: |
824 | #if ATK_CHECK_VERSION(2, 15, 4) |
825 | if (coreObject->isSubscriptStyleGroup()) |
826 | return ATK_ROLE_SUBSCRIPT; |
827 | if (coreObject->isSuperscriptStyleGroup()) |
828 | return ATK_ROLE_SUPERSCRIPT; |
829 | #endif |
830 | #if ATK_CHECK_VERSION(2, 15, 2) |
831 | return ATK_ROLE_STATIC; |
832 | case AccessibilityRole::SVGTextPath: |
833 | case AccessibilityRole::SVGTSpan: |
834 | case AccessibilityRole::Time: |
835 | return ATK_ROLE_STATIC; |
836 | #endif |
837 | default: |
838 | return ATK_ROLE_UNKNOWN; |
839 | } |
840 | } |
841 | |
842 | static AtkRole webkitAccessibleGetRole(AtkObject* object) |
843 | { |
844 | // ATK_ROLE_UNKNOWN should only be applied in cases where there is a valid |
845 | // WebCore accessible object for which the platform role mapping is unknown. |
846 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
847 | returnValIfWebKitAccessibleIsInvalid(accessible, ATK_ROLE_INVALID); |
848 | |
849 | // Note: Why doesn't WebCore have a password field for this |
850 | if (accessible->priv->object->isPasswordField()) |
851 | return ATK_ROLE_PASSWORD_TEXT; |
852 | |
853 | return atkRole(accessible->priv->object); |
854 | } |
855 | |
856 | static bool isTextWithCaret(AccessibilityObject* coreObject) |
857 | { |
858 | if (!coreObject || !coreObject->isAccessibilityRenderObject()) |
859 | return false; |
860 | |
861 | Document* document = coreObject->document(); |
862 | if (!document) |
863 | return false; |
864 | |
865 | Frame* frame = document->frame(); |
866 | if (!frame) |
867 | return false; |
868 | |
869 | if (!frame->settings().caretBrowsingEnabled()) |
870 | return false; |
871 | |
872 | // Check text objects and paragraphs only. |
873 | auto* axObject = coreObject->wrapper(); |
874 | AtkRole role = axObject ? atk_object_get_role(ATK_OBJECT(axObject)) : ATK_ROLE_INVALID; |
875 | if (role != ATK_ROLE_TEXT && role != ATK_ROLE_PARAGRAPH) |
876 | return false; |
877 | |
878 | // Finally, check whether the caret is set in the current object. |
879 | VisibleSelection selection = coreObject->selection(); |
880 | if (!selection.isCaret()) |
881 | return false; |
882 | |
883 | return selectionBelongsToObject(coreObject, selection); |
884 | } |
885 | |
886 | static void setAtkStateSetFromCoreObject(AccessibilityObject* coreObject, AtkStateSet* stateSet) |
887 | { |
888 | AccessibilityObject* parent = coreObject->parentObject(); |
889 | bool isListBoxOption = parent && parent->isListBox(); |
890 | |
891 | // Please keep the state list in alphabetical order |
892 | if ((isListBoxOption && coreObject->isSelectedOptionActive()) |
893 | || coreObject->currentState() != AccessibilityCurrentState::False) |
894 | atk_state_set_add_state(stateSet, ATK_STATE_ACTIVE); |
895 | |
896 | if (coreObject->isBusy()) |
897 | atk_state_set_add_state(stateSet, ATK_STATE_BUSY); |
898 | |
899 | #if ATK_CHECK_VERSION(2,11,2) |
900 | if (coreObject->supportsChecked() && coreObject->canSetValueAttribute()) |
901 | atk_state_set_add_state(stateSet, ATK_STATE_CHECKABLE); |
902 | #endif |
903 | |
904 | if (coreObject->isChecked()) |
905 | atk_state_set_add_state(stateSet, ATK_STATE_CHECKED); |
906 | |
907 | if ((coreObject->isTextControl() || coreObject->isNonNativeTextControl()) && coreObject->canSetValueAttribute()) |
908 | atk_state_set_add_state(stateSet, ATK_STATE_EDITABLE); |
909 | |
910 | // FIXME: Put both ENABLED and SENSITIVE together here for now |
911 | if (coreObject->isEnabled()) { |
912 | atk_state_set_add_state(stateSet, ATK_STATE_ENABLED); |
913 | atk_state_set_add_state(stateSet, ATK_STATE_SENSITIVE); |
914 | } |
915 | |
916 | if (coreObject->canSetExpandedAttribute()) |
917 | atk_state_set_add_state(stateSet, ATK_STATE_EXPANDABLE); |
918 | |
919 | if (coreObject->isExpanded()) |
920 | atk_state_set_add_state(stateSet, ATK_STATE_EXPANDED); |
921 | |
922 | if (coreObject->canSetFocusAttribute()) |
923 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSABLE); |
924 | |
925 | // According to the Core AAM, if the element which is focused has a valid aria-activedescendant, |
926 | // we should not expose the focused state on the element which is actually focused, but instead |
927 | // on its active descendant. |
928 | if ((coreObject->isFocused() && !coreObject->activeDescendant()) || isTextWithCaret(coreObject)) |
929 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSED); |
930 | else if (coreObject->isActiveDescendantOfFocusedContainer()) { |
931 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSABLE); |
932 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSED); |
933 | } |
934 | |
935 | if (coreObject->orientation() == AccessibilityOrientation::Horizontal) |
936 | atk_state_set_add_state(stateSet, ATK_STATE_HORIZONTAL); |
937 | else if (coreObject->orientation() == AccessibilityOrientation::Vertical) |
938 | atk_state_set_add_state(stateSet, ATK_STATE_VERTICAL); |
939 | |
940 | if (coreObject->hasPopup()) |
941 | atk_state_set_add_state(stateSet, ATK_STATE_HAS_POPUP); |
942 | |
943 | if (coreObject->isIndeterminate()) |
944 | atk_state_set_add_state(stateSet, ATK_STATE_INDETERMINATE); |
945 | else if (coreObject->isCheckboxOrRadio() || coreObject->isMenuItem() || coreObject->isToggleButton()) { |
946 | if (coreObject->checkboxOrRadioValue() == AccessibilityButtonState::Mixed) |
947 | atk_state_set_add_state(stateSet, ATK_STATE_INDETERMINATE); |
948 | } |
949 | |
950 | if (coreObject->isModalNode()) |
951 | atk_state_set_add_state(stateSet, ATK_STATE_MODAL); |
952 | |
953 | if (coreObject->invalidStatus() != "false" ) |
954 | atk_state_set_add_state(stateSet, ATK_STATE_INVALID_ENTRY); |
955 | |
956 | if (coreObject->isMultiSelectable()) |
957 | atk_state_set_add_state(stateSet, ATK_STATE_MULTISELECTABLE); |
958 | |
959 | // TODO: ATK_STATE_OPAQUE |
960 | |
961 | if (coreObject->isPressed()) |
962 | atk_state_set_add_state(stateSet, ATK_STATE_PRESSED); |
963 | |
964 | #if ATK_CHECK_VERSION(2,15,3) |
965 | if (!coreObject->canSetValueAttribute() && (coreObject->supportsReadOnly())) |
966 | atk_state_set_add_state(stateSet, ATK_STATE_READ_ONLY); |
967 | #endif |
968 | |
969 | if (coreObject->isRequired()) |
970 | atk_state_set_add_state(stateSet, ATK_STATE_REQUIRED); |
971 | |
972 | // TODO: ATK_STATE_SELECTABLE_TEXT |
973 | |
974 | if (coreObject->canSetSelectedAttribute()) { |
975 | atk_state_set_add_state(stateSet, ATK_STATE_SELECTABLE); |
976 | // Items in focusable lists have both STATE_SELECT{ABLE,ED} |
977 | // and STATE_FOCUS{ABLE,ED}. We'll fake the latter based on |
978 | // the former. |
979 | if (isListBoxOption) |
980 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSABLE); |
981 | } |
982 | |
983 | if (coreObject->isSelected()) { |
984 | atk_state_set_add_state(stateSet, ATK_STATE_SELECTED); |
985 | // Items in focusable lists have both STATE_SELECT{ABLE,ED} |
986 | // and STATE_FOCUS{ABLE,ED}. We'll fake the latter based on the |
987 | // former. |
988 | if (isListBoxOption) |
989 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSED); |
990 | } |
991 | |
992 | // FIXME: Group both SHOWING and VISIBLE here for now |
993 | // Not sure how to handle this in WebKit, see bug |
994 | // http://bugzilla.gnome.org/show_bug.cgi?id=509650 for other |
995 | // issues with SHOWING vs VISIBLE. |
996 | if (!coreObject->isOffScreen()) { |
997 | atk_state_set_add_state(stateSet, ATK_STATE_SHOWING); |
998 | atk_state_set_add_state(stateSet, ATK_STATE_VISIBLE); |
999 | } |
1000 | |
1001 | // Mutually exclusive, so we group these two |
1002 | if (coreObject->roleValue() == AccessibilityRole::TextArea || coreObject->ariaIsMultiline()) |
1003 | atk_state_set_add_state(stateSet, ATK_STATE_MULTI_LINE); |
1004 | else if (coreObject->roleValue() == AccessibilityRole::TextField || coreObject->roleValue() == AccessibilityRole::SearchField) |
1005 | atk_state_set_add_state(stateSet, ATK_STATE_SINGLE_LINE); |
1006 | |
1007 | // TODO: ATK_STATE_SENSITIVE |
1008 | |
1009 | if (coreObject->supportsAutoComplete() && coreObject->autoCompleteValue() != "none" ) |
1010 | atk_state_set_add_state(stateSet, ATK_STATE_SUPPORTS_AUTOCOMPLETION); |
1011 | |
1012 | if (coreObject->isVisited()) |
1013 | atk_state_set_add_state(stateSet, ATK_STATE_VISITED); |
1014 | } |
1015 | |
1016 | static AtkStateSet* webkitAccessibleRefStateSet(AtkObject* object) |
1017 | { |
1018 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
1019 | AtkStateSet* stateSet = ATK_OBJECT_CLASS(webkit_accessible_parent_class)->ref_state_set(object); |
1020 | |
1021 | // Make sure the layout is updated to really know whether the object |
1022 | // is defunct or not, so we can return the proper state. |
1023 | accessible->priv->object->updateBackingStore(); |
1024 | |
1025 | if (accessible->priv->object == fallbackObject()) { |
1026 | atk_state_set_add_state(stateSet, ATK_STATE_DEFUNCT); |
1027 | return stateSet; |
1028 | } |
1029 | |
1030 | // Text objects must be focusable. |
1031 | AtkRole role = atk_object_get_role(object); |
1032 | if (role == ATK_ROLE_TEXT || role == ATK_ROLE_PARAGRAPH) |
1033 | atk_state_set_add_state(stateSet, ATK_STATE_FOCUSABLE); |
1034 | |
1035 | setAtkStateSetFromCoreObject(accessible->priv->object, stateSet); |
1036 | return stateSet; |
1037 | } |
1038 | |
1039 | static AtkRelationSet* webkitAccessibleRefRelationSet(AtkObject* object) |
1040 | { |
1041 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
1042 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
1043 | |
1044 | AtkRelationSet* relationSet = ATK_OBJECT_CLASS(webkit_accessible_parent_class)->ref_relation_set(object); |
1045 | setAtkRelationSetFromCoreObject(accessible->priv->object, relationSet); |
1046 | return relationSet; |
1047 | } |
1048 | |
1049 | static void webkitAccessibleInit(AtkObject* object, gpointer data) |
1050 | { |
1051 | if (ATK_OBJECT_CLASS(webkit_accessible_parent_class)->initialize) |
1052 | ATK_OBJECT_CLASS(webkit_accessible_parent_class)->initialize(object, data); |
1053 | |
1054 | WebKitAccessible* accessible = WEBKIT_ACCESSIBLE(object); |
1055 | accessible->priv->object = reinterpret_cast<AccessibilityObject*>(data); |
1056 | } |
1057 | |
1058 | static const gchar* webkitAccessibleGetObjectLocale(AtkObject* object) |
1059 | { |
1060 | auto* accessible = WEBKIT_ACCESSIBLE(object); |
1061 | returnValIfWebKitAccessibleIsInvalid(accessible, nullptr); |
1062 | |
1063 | if (ATK_IS_DOCUMENT(object)) { |
1064 | // TODO: Should we fall back on lang xml:lang when the following comes up empty? |
1065 | String language = accessible->priv->object->language(); |
1066 | if (!language.isEmpty()) |
1067 | return webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedDocumentLocale, language.utf8()); |
1068 | |
1069 | } else if (ATK_IS_TEXT(object)) { |
1070 | const gchar* locale = nullptr; |
1071 | |
1072 | AtkAttributeSet* textAttributes = atk_text_get_default_attributes(ATK_TEXT(object)); |
1073 | for (auto* attributes = textAttributes; attributes; attributes = attributes->next) { |
1074 | auto* atkAttribute = static_cast<AtkAttribute*>(attributes->data); |
1075 | if (!strcmp(atkAttribute->name, atk_text_attribute_get_name(ATK_TEXT_ATTR_LANGUAGE))) { |
1076 | locale = webkitAccessibleCacheAndReturnAtkProperty(accessible, AtkCachedDocumentLocale, atkAttribute->value); |
1077 | break; |
1078 | } |
1079 | } |
1080 | atk_attribute_set_free(textAttributes); |
1081 | |
1082 | return locale; |
1083 | } |
1084 | |
1085 | return nullptr; |
1086 | } |
1087 | |
1088 | static void webkit_accessible_class_init(WebKitAccessibleClass* klass) |
1089 | { |
1090 | auto* atkObjectClass = ATK_OBJECT_CLASS(klass); |
1091 | atkObjectClass->initialize = webkitAccessibleInit; |
1092 | atkObjectClass->get_name = webkitAccessibleGetName; |
1093 | atkObjectClass->get_description = webkitAccessibleGetDescription; |
1094 | atkObjectClass->get_parent = webkitAccessibleGetParent; |
1095 | atkObjectClass->get_n_children = webkitAccessibleGetNChildren; |
1096 | atkObjectClass->ref_child = webkitAccessibleRefChild; |
1097 | atkObjectClass->get_role = webkitAccessibleGetRole; |
1098 | atkObjectClass->ref_state_set = webkitAccessibleRefStateSet; |
1099 | atkObjectClass->get_index_in_parent = webkitAccessibleGetIndexInParent; |
1100 | atkObjectClass->get_attributes = webkitAccessibleGetAttributes; |
1101 | atkObjectClass->ref_relation_set = webkitAccessibleRefRelationSet; |
1102 | atkObjectClass->get_object_locale = webkitAccessibleGetObjectLocale; |
1103 | } |
1104 | |
1105 | static const GInterfaceInfo atkInterfacesInitFunctions[] = { |
1106 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleActionInterfaceInit)), nullptr, nullptr}, |
1107 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleSelectionInterfaceInit)), nullptr, nullptr}, |
1108 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleEditableTextInterfaceInit)), nullptr, nullptr}, |
1109 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleTextInterfaceInit)), nullptr, nullptr}, |
1110 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleComponentInterfaceInit)), nullptr, nullptr}, |
1111 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleImageInterfaceInit)), nullptr, nullptr}, |
1112 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleTableInterfaceInit)), nullptr, nullptr}, |
1113 | #if ATK_CHECK_VERSION(2,11,90) |
1114 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleTableCellInterfaceInit)), nullptr, nullptr}, |
1115 | #endif |
1116 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleHypertextInterfaceInit)), nullptr, nullptr}, |
1117 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleHyperlinkImplInterfaceInit)), nullptr, nullptr}, |
1118 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleDocumentInterfaceInit)), nullptr, nullptr}, |
1119 | {reinterpret_cast<GInterfaceInitFunc>(reinterpret_cast<GCallback>(webkitAccessibleValueInterfaceInit)), nullptr, nullptr} |
1120 | }; |
1121 | |
1122 | enum WAIType { |
1123 | WAIAction, |
1124 | WAISelection, |
1125 | WAIEditableText, |
1126 | WAIText, |
1127 | WAIComponent, |
1128 | WAIImage, |
1129 | WAITable, |
1130 | #if ATK_CHECK_VERSION(2,11,90) |
1131 | WAITableCell, |
1132 | #endif |
1133 | WAIHypertext, |
1134 | WAIHyperlink, |
1135 | WAIDocument, |
1136 | WAIValue, |
1137 | }; |
1138 | |
1139 | static GType atkInterfaceTypeFromWAIType(WAIType type) |
1140 | { |
1141 | switch (type) { |
1142 | case WAIAction: |
1143 | return ATK_TYPE_ACTION; |
1144 | case WAISelection: |
1145 | return ATK_TYPE_SELECTION; |
1146 | case WAIEditableText: |
1147 | return ATK_TYPE_EDITABLE_TEXT; |
1148 | case WAIText: |
1149 | return ATK_TYPE_TEXT; |
1150 | case WAIComponent: |
1151 | return ATK_TYPE_COMPONENT; |
1152 | case WAIImage: |
1153 | return ATK_TYPE_IMAGE; |
1154 | case WAITable: |
1155 | return ATK_TYPE_TABLE; |
1156 | #if ATK_CHECK_VERSION(2,11,90) |
1157 | case WAITableCell: |
1158 | return ATK_TYPE_TABLE_CELL; |
1159 | #endif |
1160 | case WAIHypertext: |
1161 | return ATK_TYPE_HYPERTEXT; |
1162 | case WAIHyperlink: |
1163 | return ATK_TYPE_HYPERLINK_IMPL; |
1164 | case WAIDocument: |
1165 | return ATK_TYPE_DOCUMENT; |
1166 | case WAIValue: |
1167 | return ATK_TYPE_VALUE; |
1168 | } |
1169 | |
1170 | return G_TYPE_INVALID; |
1171 | } |
1172 | |
1173 | static bool roleIsTextType(AccessibilityRole role) |
1174 | { |
1175 | return role == AccessibilityRole::Paragraph |
1176 | || role == AccessibilityRole::Heading |
1177 | || role == AccessibilityRole::Div |
1178 | || role == AccessibilityRole::Cell |
1179 | || role == AccessibilityRole::Link |
1180 | || role == AccessibilityRole::WebCoreLink |
1181 | || role == AccessibilityRole::ListItem |
1182 | || role == AccessibilityRole::Pre |
1183 | || role == AccessibilityRole::GridCell |
1184 | || role == AccessibilityRole::TextGroup |
1185 | || role == AccessibilityRole::ApplicationTextGroup |
1186 | || role == AccessibilityRole::ApplicationGroup; |
1187 | } |
1188 | |
1189 | static guint16 interfaceMaskFromObject(AccessibilityObject* coreObject) |
1190 | { |
1191 | guint16 interfaceMask = 0; |
1192 | |
1193 | // Component interface is always supported |
1194 | interfaceMask |= 1 << WAIComponent; |
1195 | |
1196 | AccessibilityRole role = coreObject->roleValue(); |
1197 | |
1198 | // Action |
1199 | // As the implementation of the AtkAction interface is a very |
1200 | // basic one (just relays in executing the default action for each |
1201 | // object, and only supports having one action per object), it is |
1202 | // better just to implement this interface for every instance of |
1203 | // the WebKitAccessible class and let WebCore decide what to do. |
1204 | interfaceMask |= 1 << WAIAction; |
1205 | |
1206 | // Selection |
1207 | if (coreObject->canHaveSelectedChildren() || coreObject->isMenuList()) |
1208 | interfaceMask |= 1 << WAISelection; |
1209 | |
1210 | // Get renderer if available. |
1211 | RenderObject* renderer = nullptr; |
1212 | if (coreObject->isAccessibilityRenderObject()) |
1213 | renderer = coreObject->renderer(); |
1214 | |
1215 | // Hyperlink (links and embedded objects). |
1216 | if (coreObject->isLink() || (renderer && renderer->isReplaced())) |
1217 | interfaceMask |= 1 << WAIHyperlink; |
1218 | |
1219 | // Text, Editable Text & Hypertext |
1220 | if (role == AccessibilityRole::StaticText || coreObject->isMenuListOption()) |
1221 | interfaceMask |= 1 << WAIText; |
1222 | else if (coreObject->isTextControl() || coreObject->isNonNativeTextControl()) { |
1223 | interfaceMask |= 1 << WAIText; |
1224 | if (coreObject->canSetValueAttribute()) |
1225 | interfaceMask |= 1 << WAIEditableText; |
1226 | } else if (!coreObject->isWebArea()) { |
1227 | if (role != AccessibilityRole::Table) { |
1228 | interfaceMask |= 1 << WAIHypertext; |
1229 | if ((renderer && renderer->childrenInline()) || roleIsTextType(role) || coreObject->isMathToken()) |
1230 | interfaceMask |= 1 << WAIText; |
1231 | } |
1232 | |
1233 | // Add the TEXT interface for list items whose |
1234 | // first accessible child has a text renderer |
1235 | if (role == AccessibilityRole::ListItem) { |
1236 | const auto& children = coreObject->children(); |
1237 | if (!children.isEmpty()) |
1238 | interfaceMask |= interfaceMaskFromObject(children[0].get()); |
1239 | } |
1240 | } |
1241 | |
1242 | // Image |
1243 | if (coreObject->isImage()) |
1244 | interfaceMask |= 1 << WAIImage; |
1245 | |
1246 | // Table |
1247 | if (coreObject->isTable()) |
1248 | interfaceMask |= 1 << WAITable; |
1249 | |
1250 | #if ATK_CHECK_VERSION(2,11,90) |
1251 | if (role == AccessibilityRole::Cell || role == AccessibilityRole::GridCell || role == AccessibilityRole::ColumnHeader || role == AccessibilityRole::RowHeader) |
1252 | interfaceMask |= 1 << WAITableCell; |
1253 | #endif |
1254 | |
1255 | // Document |
1256 | if (role == AccessibilityRole::WebArea) |
1257 | interfaceMask |= 1 << WAIDocument; |
1258 | |
1259 | // Value |
1260 | if (coreObject->supportsRangeValue()) |
1261 | interfaceMask |= 1 << WAIValue; |
1262 | |
1263 | #if ENABLE(INPUT_TYPE_COLOR) |
1264 | // Color type. |
1265 | if (role == AccessibilityRole::ColorWell) |
1266 | interfaceMask |= 1 << WAIText; |
1267 | #endif |
1268 | |
1269 | return interfaceMask; |
1270 | } |
1271 | |
1272 | static const char* uniqueAccessibilityTypeName(guint16 interfaceMask) |
1273 | { |
1274 | #define WAI_TYPE_NAME_LEN (30) // Enough for prefix + 5 hex characters (max). |
1275 | static char name[WAI_TYPE_NAME_LEN + 1]; |
1276 | |
1277 | g_sprintf(name, "WAIType%x" , interfaceMask); |
1278 | name[WAI_TYPE_NAME_LEN] = '\0'; |
1279 | |
1280 | return name; |
1281 | } |
1282 | |
1283 | static GType accessibilityTypeFromObject(AccessibilityObject* coreObject) |
1284 | { |
1285 | static const GTypeInfo typeInfo = { |
1286 | sizeof(WebKitAccessibleClass), |
1287 | nullptr, // GBaseInitFunc |
1288 | nullptr, // GBaseFinalizeFunc |
1289 | nullptr, // GClassInitFunc |
1290 | nullptr, // GClassFinalizeFunc |
1291 | nullptr, // class data |
1292 | sizeof(WebKitAccessible), // instance size |
1293 | 0, // nb preallocs |
1294 | nullptr, // GInstanceInitFunc |
1295 | nullptr // value table |
1296 | }; |
1297 | |
1298 | guint16 interfaceMask = interfaceMaskFromObject(coreObject); |
1299 | const char* atkTypeName = uniqueAccessibilityTypeName(interfaceMask); |
1300 | if (GType type = g_type_from_name(atkTypeName)) |
1301 | return type; |
1302 | |
1303 | GType type = g_type_register_static(WEBKIT_TYPE_ACCESSIBLE, atkTypeName, &typeInfo, static_cast<GTypeFlags>(0)); |
1304 | for (unsigned i = 0; i < G_N_ELEMENTS(atkInterfacesInitFunctions); ++i) { |
1305 | if (interfaceMask & (1 << i)) { |
1306 | g_type_add_interface_static(type, |
1307 | atkInterfaceTypeFromWAIType(static_cast<WAIType>(i)), |
1308 | &atkInterfacesInitFunctions[i]); |
1309 | } |
1310 | } |
1311 | |
1312 | return type; |
1313 | } |
1314 | |
1315 | WebKitAccessible* webkitAccessibleNew(AccessibilityObject* coreObject) |
1316 | { |
1317 | auto* object = ATK_OBJECT(g_object_new(accessibilityTypeFromObject(coreObject), nullptr)); |
1318 | atk_object_initialize(object, coreObject); |
1319 | return WEBKIT_ACCESSIBLE(object); |
1320 | } |
1321 | |
1322 | AccessibilityObject& webkitAccessibleGetAccessibilityObject(WebKitAccessible* accessible) |
1323 | { |
1324 | ASSERT(WEBKIT_IS_ACCESSIBLE(accessible)); |
1325 | return *accessible->priv->object; |
1326 | } |
1327 | |
1328 | void webkitAccessibleDetach(WebKitAccessible* accessible) |
1329 | { |
1330 | ASSERT(WEBKIT_IS_ACCESSIBLE(accessible)); |
1331 | ASSERT(accessible->priv->object != fallbackObject()); |
1332 | |
1333 | if (accessible->priv->object->roleValue() == AccessibilityRole::WebArea) |
1334 | atk_object_notify_state_change(ATK_OBJECT(accessible), ATK_STATE_DEFUNCT, TRUE); |
1335 | |
1336 | // We replace the WebCore AccessibilityObject with a fallback object that |
1337 | // provides default implementations to avoid repetitive null-checking after |
1338 | // detachment. |
1339 | accessible->priv->object = fallbackObject(); |
1340 | } |
1341 | |
1342 | bool webkitAccessibleIsDetached(WebKitAccessible* accessible) |
1343 | { |
1344 | ASSERT(WEBKIT_IS_ACCESSIBLE(accessible)); |
1345 | return accessible->priv->object == fallbackObject(); |
1346 | } |
1347 | |
1348 | const char* webkitAccessibleCacheAndReturnAtkProperty(WebKitAccessible* accessible, AtkCachedProperty property, CString&& value) |
1349 | { |
1350 | ASSERT(WEBKIT_IS_ACCESSIBLE(accessible)); |
1351 | |
1352 | WebKitAccessiblePrivate* priv = accessible->priv; |
1353 | CString* propertyPtr = nullptr; |
1354 | |
1355 | switch (property) { |
1356 | case AtkCachedAccessibleName: |
1357 | propertyPtr = &priv->accessibleName; |
1358 | break; |
1359 | case AtkCachedAccessibleDescription: |
1360 | propertyPtr = &priv->accessibleDescription; |
1361 | break; |
1362 | case AtkCachedActionName: |
1363 | propertyPtr = &priv->actionName; |
1364 | break; |
1365 | case AtkCachedActionKeyBinding: |
1366 | propertyPtr = &priv->actionKeyBinding; |
1367 | break; |
1368 | case AtkCachedDocumentLocale: |
1369 | propertyPtr = &priv->documentLocale; |
1370 | break; |
1371 | case AtkCachedDocumentType: |
1372 | propertyPtr = &priv->documentType; |
1373 | break; |
1374 | case AtkCachedDocumentEncoding: |
1375 | propertyPtr = &priv->documentEncoding; |
1376 | break; |
1377 | case AtkCachedDocumentURI: |
1378 | propertyPtr = &priv->documentURI; |
1379 | break; |
1380 | case AtkCachedImageDescription: |
1381 | propertyPtr = &priv->imageDescription; |
1382 | break; |
1383 | default: |
1384 | ASSERT_NOT_REACHED(); |
1385 | } |
1386 | |
1387 | // Don't invalidate old memory if not stricly needed, since other |
1388 | // callers might be still holding on to it. |
1389 | if (*propertyPtr != value) |
1390 | *propertyPtr = WTFMove(value); |
1391 | |
1392 | return (*propertyPtr).data(); |
1393 | } |
1394 | |
1395 | #endif // HAVE(ACCESSIBILITY) |
1396 | |