components/test_runner/web_ax_object_proxy.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/test_runner/web_ax_object_proxy.h"
   6
   7 #include "base/strings/stringprintf.h"
   8 #include "gin/handle.h"
   9 #include "third_party/WebKit/public/platform/WebPoint.h"
  10 #include "third_party/WebKit/public/platform/WebRect.h"
  11 #include "third_party/WebKit/public/platform/WebString.h"
  12 #include "third_party/WebKit/public/web/WebFrame.h"
  13 #include "third_party/WebKit/public/web/WebKit.h"
  14
  15 namespace test_runner {
  16
  17 namespace {
  18
  19 // Map role value to string, matching Safari/Mac platform implementation to
  20 // avoid rebaselining layout tests.
  21 std::string RoleToString(blink::WebAXRole role)
  22 {
  23   std::string result = "AXRole: AX";
  24   switch (role) {
  25     case blink::WebAXRoleAlertDialog:
  26       return result.append("AlertDialog");
  27     case blink::WebAXRoleAlert:
  28       return result.append("Alert");
  29     case blink::WebAXRoleAnnotation:
  30       return result.append("Annotation");
  31     case blink::WebAXRoleApplication:
  32       return result.append("Application");
  33     case blink::WebAXRoleArticle:
  34       return result.append("Article");
  35     case blink::WebAXRoleBanner:
  36       return result.append("Banner");
  37     case blink::WebAXRoleBlockquote:
  38       return result.append("Blockquote");
  39     case blink::WebAXRoleBusyIndicator:
  40       return result.append("BusyIndicator");
  41     case blink::WebAXRoleButton:
  42       return result.append("Button");
  43     case blink::WebAXRoleCanvas:
  44       return result.append("Canvas");
  45     case blink::WebAXRoleCaption:
  46       return result.append("Caption");
  47     case blink::WebAXRoleCell:
  48       return result.append("Cell");
  49     case blink::WebAXRoleCheckBox:
  50       return result.append("CheckBox");
  51     case blink::WebAXRoleColorWell:
  52       return result.append("ColorWell");
  53     case blink::WebAXRoleColumnHeader:
  54       return result.append("ColumnHeader");
  55     case blink::WebAXRoleColumn:
  56       return result.append("Column");
  57     case blink::WebAXRoleComboBox:
  58       return result.append("ComboBox");
  59     case blink::WebAXRoleComplementary:
  60       return result.append("Complementary");
  61     case blink::WebAXRoleContentInfo:
  62       return result.append("ContentInfo");
  63     case blink::WebAXRoleDate:
  64       return result.append("DateField");
  65     case blink::WebAXRoleDateTime:
  66       return result.append("DateTimeField");
  67     case blink::WebAXRoleDefinition:
  68       return result.append("Definition");
  69     case blink::WebAXRoleDescriptionListDetail:
  70       return result.append("DescriptionListDetail");
  71     case blink::WebAXRoleDescriptionList:
  72       return result.append("DescriptionList");
  73     case blink::WebAXRoleDescriptionListTerm:
  74       return result.append("DescriptionListTerm");
  75     case blink::WebAXRoleDetails:
  76       return result.append("Details");
  77     case blink::WebAXRoleDialog:
  78       return result.append("Dialog");
  79     case blink::WebAXRoleDirectory:
  80       return result.append("Directory");
  81     case blink::WebAXRoleDisclosureTriangle:
  82       return result.append("DisclosureTriangle");
  83     case blink::WebAXRoleDiv:
  84       return result.append("Div");
  85     case blink::WebAXRoleDocument:
  86       return result.append("Document");
  87     case blink::WebAXRoleEmbeddedObject:
  88       return result.append("EmbeddedObject");
  89     case blink::WebAXRoleFigcaption:
  90       return result.append("Figcaption");
  91     case blink::WebAXRoleFigure:
  92       return result.append("Figure");
  93     case blink::WebAXRoleFooter:
  94       return result.append("Footer");
  95     case blink::WebAXRoleForm:
  96       return result.append("Form");
  97     case blink::WebAXRoleGrid:
  98       return result.append("Grid");
  99     case blink::WebAXRoleGroup:
 100       return result.append("Group");
 101     case blink::WebAXRoleHeading:
 102       return result.append("Heading");
 103     case blink::WebAXRoleIgnored:
 104       return result.append("Ignored");
 105     case blink::WebAXRoleImageMapLink:
 106       return result.append("ImageMapLink");
 107     case blink::WebAXRoleImageMap:
 108       return result.append("ImageMap");
 109     case blink::WebAXRoleImage:
 110       return result.append("Image");
 111     case blink::WebAXRoleInlineTextBox:
 112       return result.append("InlineTextBox");
 113     case blink::WebAXRoleInputTime:
 114       return result.append("InputTime");
 115     case blink::WebAXRoleLabel:
 116       return result.append("Label");
 117     case blink::WebAXRoleLegend:
 118       return result.append("Legend");
 119     case blink::WebAXRoleLink:
 120       return result.append("Link");
 121     case blink::WebAXRoleListBoxOption:
 122       return result.append("ListBoxOption");
 123     case blink::WebAXRoleListBox:
 124       return result.append("ListBox");
 125     case blink::WebAXRoleListItem:
 126       return result.append("ListItem");
 127     case blink::WebAXRoleListMarker:
 128       return result.append("ListMarker");
 129     case blink::WebAXRoleList:
 130       return result.append("List");
 131     case blink::WebAXRoleLog:
 132       return result.append("Log");
 133     case blink::WebAXRoleMain:
 134       return result.append("Main");
 135     case blink::WebAXRoleMark:
 136       return result.append("Mark");
 137     case blink::WebAXRoleMarquee:
 138       return result.append("Marquee");
 139     case blink::WebAXRoleMath:
 140       return result.append("Math");
 141     case blink::WebAXRoleMenuBar:
 142       return result.append("MenuBar");
 143     case blink::WebAXRoleMenuButton:
 144       return result.append("MenuButton");
 145     case blink::WebAXRoleMenuItem:
 146       return result.append("MenuItem");
 147     case blink::WebAXRoleMenuItemCheckBox:
 148       return result.append("MenuItemCheckBox");
 149     case blink::WebAXRoleMenuItemRadio:
 150       return result.append("MenuItemRadio");
 151     case blink::WebAXRoleMenuListOption:
 152       return result.append("MenuListOption");
 153     case blink::WebAXRoleMenuListPopup:
 154       return result.append("MenuListPopup");
 155     case blink::WebAXRoleMenu:
 156       return result.append("Menu");
 157     case blink::WebAXRoleMeter:
 158       return result.append("Meter");
 159     case blink::WebAXRoleNavigation:
 160       return result.append("Navigation");
 161     case blink::WebAXRoleNone:
 162       return result.append("None");
 163     case blink::WebAXRoleNote:
 164       return result.append("Note");
 165     case blink::WebAXRoleOutline:
 166       return result.append("Outline");
 167     case blink::WebAXRoleParagraph:
 168       return result.append("Paragraph");
 169     case blink::WebAXRolePopUpButton:
 170       return result.append("PopUpButton");
 171     case blink::WebAXRolePre:
 172       return result.append("Pre");
 173     case blink::WebAXRolePresentational:
 174       return result.append("Presentational");
 175     case blink::WebAXRoleProgressIndicator:
 176       return result.append("ProgressIndicator");
 177     case blink::WebAXRoleRadioButton:
 178       return result.append("RadioButton");
 179     case blink::WebAXRoleRadioGroup:
 180       return result.append("RadioGroup");
 181     case blink::WebAXRoleRegion:
 182       return result.append("Region");
 183     case blink::WebAXRoleRootWebArea:
 184       return result.append("RootWebArea");
 185     case blink::WebAXRoleRowHeader:
 186       return result.append("RowHeader");
 187     case blink::WebAXRoleRow:
 188       return result.append("Row");
 189     case blink::WebAXRoleRuby:
 190       return result.append("Ruby");
 191     case blink::WebAXRoleRuler:
 192       return result.append("Ruler");
 193     case blink::WebAXRoleSVGRoot:
 194       return result.append("SVGRoot");
 195     case blink::WebAXRoleScrollArea:
 196       return result.append("ScrollArea");
 197     case blink::WebAXRoleScrollBar:
 198       return result.append("ScrollBar");
 199     case blink::WebAXRoleSeamlessWebArea:
 200       return result.append("SeamlessWebArea");
 201     case blink::WebAXRoleSearch:
 202       return result.append("Search");
 203     case blink::WebAXRoleSearchBox:
 204       return result.append("SearchBox");
 205     case blink::WebAXRoleSlider:
 206       return result.append("Slider");
 207     case blink::WebAXRoleSliderThumb:
 208       return result.append("SliderThumb");
 209     case blink::WebAXRoleSpinButtonPart:
 210       return result.append("SpinButtonPart");
 211     case blink::WebAXRoleSpinButton:
 212       return result.append("SpinButton");
 213     case blink::WebAXRoleSplitter:
 214       return result.append("Splitter");
 215     case blink::WebAXRoleStaticText:
 216       return result.append("StaticText");
 217     case blink::WebAXRoleStatus:
 218       return result.append("Status");
 219     case blink::WebAXRoleSwitch:
 220       return result.append("Switch");
 221     case blink::WebAXRoleTabGroup:
 222       return result.append("TabGroup");
 223     case blink::WebAXRoleTabList:
 224       return result.append("TabList");
 225     case blink::WebAXRoleTabPanel:
 226       return result.append("TabPanel");
 227     case blink::WebAXRoleTab:
 228       return result.append("Tab");
 229     case blink::WebAXRoleTableHeaderContainer:
 230       return result.append("TableHeaderContainer");
 231     case blink::WebAXRoleTable:
 232       return result.append("Table");
 233     case blink::WebAXRoleTextField:
 234       return result.append("TextField");
 235     case blink::WebAXRoleTime:
 236       return result.append("Time");
 237     case blink::WebAXRoleTimer:
 238       return result.append("Timer");
 239     case blink::WebAXRoleToggleButton:
 240       return result.append("ToggleButton");
 241     case blink::WebAXRoleToolbar:
 242       return result.append("Toolbar");
 243     case blink::WebAXRoleTreeGrid:
 244       return result.append("TreeGrid");
 245     case blink::WebAXRoleTreeItem:
 246       return result.append("TreeItem");
 247     case blink::WebAXRoleTree:
 248       return result.append("Tree");
 249     case blink::WebAXRoleUnknown:
 250       return result.append("Unknown");
 251     case blink::WebAXRoleUserInterfaceTooltip:
 252       return result.append("UserInterfaceTooltip");
 253     case blink::WebAXRoleWebArea:
 254       return result.append("WebArea");
 255     case blink::WebAXRoleWindow:
 256       return result.append("Window");
 257     default:
 258       return result.append("Unknown");
 259   }
 260 }
 261
 262 std::string DeprecatedGetDescription(const blink::WebAXObject& object) {
 263   std::string description = object.deprecatedAccessibilityDescription().utf8();
 264   return description.insert(0, "AXDescription: ");
 265 }
 266
 267 std::string DeprecatedGetHelpText(const blink::WebAXObject& object) {
 268   std::string help_text = object.deprecatedHelpText().utf8();
 269   return help_text.insert(0, "AXHelp: ");
 270 }
 271
 272 std::string GetStringValue(const blink::WebAXObject& object) {
 273   std::string value;
 274   if (object.role() == blink::WebAXRoleColorWell) {
 275     unsigned int color = object.colorValue();
 276     unsigned int red = (color >> 16) & 0xFF;
 277     unsigned int green = (color >> 8) & 0xFF;
 278     unsigned int blue = color & 0xFF;
 279     value = base::StringPrintf("rgba(%d, %d, %d, 1)",
 280                                red, green, blue);
 281   } else {
 282     value = object.stringValue().utf8();
 283   }
 284   return value.insert(0, "AXValue: ");
 285 }
 286
 287 std::string GetRole(const blink::WebAXObject& object) {
 288   std::string role_string = RoleToString(object.role());
 289
 290   // Special-case canvas with fallback content because Chromium wants to treat
 291   // this as essentially a separate role that it can map differently depending
 292   // on the platform.
 293   if (object.role() == blink::WebAXRoleCanvas &&
 294       object.canvasHasFallbackContent()) {
 295     role_string += "WithFallbackContent";
 296   }
 297
 298   return role_string;
 299 }
 300
 301 std::string DeprecatedGetTitle(const blink::WebAXObject& object) {
 302   std::string title = object.deprecatedTitle().utf8();
 303   return title.insert(0, "AXTitle: ");
 304 }
 305
 306 std::string GetValueDescription(const blink::WebAXObject& object) {
 307   std::string value_description = object.valueDescription().utf8();
 308   return value_description.insert(0, "AXValueDescription: ");
 309 }
 310
 311 std::string GetLanguage(const blink::WebAXObject& object) {
 312   std::string language = object.language().utf8();
 313   return language.insert(0, "AXLanguage: ");
 314 }
 315
 316 std::string GetAttributes(const blink::WebAXObject& object) {
 317   // FIXME: Concatenate all attributes of the AXObject.
 318   std::string attributes(DeprecatedGetTitle(object));
 319   attributes.append("\n");
 320   attributes.append(GetRole(object));
 321   attributes.append("\n");
 322   attributes.append(DeprecatedGetDescription(object));
 323   return attributes;
 324 }
 325
 326 blink::WebRect BoundsForCharacter(const blink::WebAXObject& object,
 327                                   int characterIndex) {
 328   DCHECK_EQ(object.role(), blink::WebAXRoleStaticText);
 329   int end = 0;
 330   for (unsigned i = 0; i < object.childCount(); i++) {
 331     blink::WebAXObject inline_text_box = object.childAt(i);
 332     DCHECK_EQ(inline_text_box.role(), blink::WebAXRoleInlineTextBox);
 333     int start = end;
 334     end += inline_text_box.stringValue().length();
 335     if (characterIndex < start || characterIndex >= end)
 336       continue;
 337     blink::WebRect inline_text_box_rect = inline_text_box.boundingBoxRect();
 338     int localIndex = characterIndex - start;
 339     blink::WebVector<int> character_offsets;
 340     inline_text_box.characterOffsets(character_offsets);
 341     DCHECK(character_offsets.size() > 0 &&
 342            character_offsets.size() == inline_text_box.stringValue().length());
 343     switch (inline_text_box.textDirection()) {
 344       case blink::WebAXTextDirectionLR: {
 345         if (localIndex) {
 346           int left = inline_text_box_rect.x + character_offsets[localIndex - 1];
 347           int width = character_offsets[localIndex] -
 348               character_offsets[localIndex - 1];
 349           return blink::WebRect(left, inline_text_box_rect.y,
 350                                 width, inline_text_box_rect.height);
 351         }
 352         return blink::WebRect(
 353             inline_text_box_rect.x, inline_text_box_rect.y,
 354             character_offsets[0], inline_text_box_rect.height);
 355       }
 356       case blink::WebAXTextDirectionRL: {
 357         int right = inline_text_box_rect.x + inline_text_box_rect.width;
 358
 359         if (localIndex) {
 360           int left = right - character_offsets[localIndex];
 361           int width = character_offsets[localIndex] -
 362               character_offsets[localIndex - 1];
 363           return blink::WebRect(left, inline_text_box_rect.y,
 364                                 width, inline_text_box_rect.height);
 365         }
 366         int left = right - character_offsets[0];
 367         return blink::WebRect(
 368             left, inline_text_box_rect.y,
 369             character_offsets[0], inline_text_box_rect.height);
 370       }
 371       case blink::WebAXTextDirectionTB: {
 372         if (localIndex) {
 373           int top = inline_text_box_rect.y + character_offsets[localIndex - 1];
 374           int height = character_offsets[localIndex] -
 375               character_offsets[localIndex - 1];
 376           return blink::WebRect(inline_text_box_rect.x, top,
 377                                 inline_text_box_rect.width, height);
 378         }
 379         return blink::WebRect(inline_text_box_rect.x, inline_text_box_rect.y,
 380                               inline_text_box_rect.width, character_offsets[0]);
 381       }
 382       case blink::WebAXTextDirectionBT: {
 383         int bottom = inline_text_box_rect.y + inline_text_box_rect.height;
 384
 385         if (localIndex) {
 386           int top = bottom - character_offsets[localIndex];
 387           int height = character_offsets[localIndex] -
 388               character_offsets[localIndex - 1];
 389           return blink::WebRect(inline_text_box_rect.x, top,
 390                                 inline_text_box_rect.width, height);
 391         }
 392         int top = bottom - character_offsets[0];
 393         return blink::WebRect(inline_text_box_rect.x, top,
 394                               inline_text_box_rect.width, character_offsets[0]);
 395       }
 396     }
 397   }
 398
 399   DCHECK(false);
 400   return blink::WebRect();
 401 }
 402
 403 void GetBoundariesForOneWord(const blink::WebAXObject& object,
 404                              int character_index,
 405                              int& word_start,
 406                              int& word_end) {
 407   int end = 0;
 408   for (unsigned i = 0; i < object.childCount(); i++) {
 409     blink::WebAXObject inline_text_box = object.childAt(i);
 410     DCHECK_EQ(inline_text_box.role(), blink::WebAXRoleInlineTextBox);
 411     int start = end;
 412     end += inline_text_box.stringValue().length();
 413     if (end <= character_index)
 414       continue;
 415     int localIndex = character_index - start;
 416
 417     blink::WebVector<int> starts;
 418     blink::WebVector<int> ends;
 419     inline_text_box.wordBoundaries(starts, ends);
 420     size_t word_count = starts.size();
 421     DCHECK_EQ(ends.size(), word_count);
 422
 423     // If there are no words, use the InlineTextBox boundaries.
 424     if (!word_count) {
 425       word_start = start;
 426       word_end = end;
 427       return;
 428     }
 429
 430     // Look for a character within any word other than the last.
 431     for (size_t j = 0; j < word_count - 1; j++) {
 432       if (localIndex <= ends[j]) {
 433         word_start = start + starts[j];
 434         word_end = start + ends[j];
 435         return;
 436       }
 437     }
 438
 439     // Return the last word by default.
 440     word_start = start + starts[word_count - 1];
 441     word_end = start + ends[word_count - 1];
 442     return;
 443   }
 444 }
 445
 446 // Collects attributes into a string, delimited by dashes. Used by all methods
 447 // that output lists of attributes: attributesOfLinkedUIElementsCallback,
 448 // AttributesOfChildrenCallback, etc.
 449 class AttributesCollector {
 450  public:
 451   AttributesCollector() {}
 452   ~AttributesCollector() {}
 453
 454   void CollectAttributes(const blink::WebAXObject& object) {
 455     attributes_.append("\n------------\n");
 456     attributes_.append(GetAttributes(object));
 457   }
 458
 459   std::string attributes() const { return attributes_; }
 460
 461  private:
 462   std::string attributes_;
 463
 464   DISALLOW_COPY_AND_ASSIGN(AttributesCollector);
 465 };
 466
 467 }  // namespace
 468
 469 gin::WrapperInfo WebAXObjectProxy::kWrapperInfo = {
 470     gin::kEmbedderNativeGin};
 471
 472 WebAXObjectProxy::WebAXObjectProxy(const blink::WebAXObject& object,
 473                                    WebAXObjectProxy::Factory* factory)
 474     : accessibility_object_(object),
 475       factory_(factory) {
 476 }
 477
 478 WebAXObjectProxy::~WebAXObjectProxy() {}
 479
 480 gin::ObjectTemplateBuilder
 481 WebAXObjectProxy::GetObjectTemplateBuilder(v8::Isolate* isolate) {
 482   return gin::Wrappable<WebAXObjectProxy>::GetObjectTemplateBuilder(isolate)
 483       .SetProperty("role", &WebAXObjectProxy::Role)
 484       .SetProperty("stringValue", &WebAXObjectProxy::StringValue)
 485       .SetProperty("language", &WebAXObjectProxy::Language)
 486       .SetProperty("x", &WebAXObjectProxy::X)
 487       .SetProperty("y", &WebAXObjectProxy::Y)
 488       .SetProperty("width", &WebAXObjectProxy::Width)
 489       .SetProperty("height", &WebAXObjectProxy::Height)
 490       .SetProperty("intValue", &WebAXObjectProxy::IntValue)
 491       .SetProperty("minValue", &WebAXObjectProxy::MinValue)
 492       .SetProperty("maxValue", &WebAXObjectProxy::MaxValue)
 493       .SetProperty("valueDescription", &WebAXObjectProxy::ValueDescription)
 494       .SetProperty("childrenCount", &WebAXObjectProxy::ChildrenCount)
 495       .SetProperty("selectionStart", &WebAXObjectProxy::SelectionStart)
 496       .SetProperty("selectionEnd", &WebAXObjectProxy::SelectionEnd)
 497       .SetProperty("selectionStartLineNumber",
 498                    &WebAXObjectProxy::SelectionStartLineNumber)
 499       .SetProperty("selectionEndLineNumber",
 500                    &WebAXObjectProxy::SelectionEndLineNumber)
 501       .SetProperty("isEnabled", &WebAXObjectProxy::IsEnabled)
 502       .SetProperty("isRequired", &WebAXObjectProxy::IsRequired)
 503       .SetProperty("isRichlyEditable", &WebAXObjectProxy::IsRichlyEditable)
 504       .SetProperty("isFocused", &WebAXObjectProxy::IsFocused)
 505       .SetProperty("isFocusable", &WebAXObjectProxy::IsFocusable)
 506       .SetProperty("isSelected", &WebAXObjectProxy::IsSelected)
 507       .SetProperty("isSelectable", &WebAXObjectProxy::IsSelectable)
 508       .SetProperty("isMultiSelectable", &WebAXObjectProxy::IsMultiSelectable)
 509       .SetProperty("isSelectedOptionActive",
 510                    &WebAXObjectProxy::IsSelectedOptionActive)
 511       .SetProperty("isExpanded", &WebAXObjectProxy::IsExpanded)
 512       .SetProperty("isChecked", &WebAXObjectProxy::IsChecked)
 513       .SetProperty("isVisible", &WebAXObjectProxy::IsVisible)
 514       .SetProperty("isOffScreen", &WebAXObjectProxy::IsOffScreen)
 515       .SetProperty("isCollapsed", &WebAXObjectProxy::IsCollapsed)
 516       .SetProperty("hasPopup", &WebAXObjectProxy::HasPopup)
 517       .SetProperty("isValid", &WebAXObjectProxy::IsValid)
 518       .SetProperty("isReadOnly", &WebAXObjectProxy::IsReadOnly)
 519       .SetProperty("backgroundColor", &WebAXObjectProxy::BackgroundColor)
 520       .SetProperty("color", &WebAXObjectProxy::Color)
 521       .SetProperty("colorValue", &WebAXObjectProxy::ColorValue)
 522       .SetProperty("fontSize", &WebAXObjectProxy::FontSize)
 523       .SetProperty("orientation", &WebAXObjectProxy::Orientation)
 524       .SetProperty("posInSet", &WebAXObjectProxy::PosInSet)
 525       .SetProperty("setSize", &WebAXObjectProxy::SetSize)
 526       .SetProperty("clickPointX", &WebAXObjectProxy::ClickPointX)
 527       .SetProperty("clickPointY", &WebAXObjectProxy::ClickPointY)
 528       .SetProperty("rowCount", &WebAXObjectProxy::RowCount)
 529       .SetProperty("rowHeadersCount", &WebAXObjectProxy::RowHeadersCount)
 530       .SetProperty("columnCount", &WebAXObjectProxy::ColumnCount)
 531       .SetProperty("columnHeadersCount", &WebAXObjectProxy::ColumnHeadersCount)
 532       .SetProperty("isClickable", &WebAXObjectProxy::IsClickable)
 533       .SetProperty("isButtonStateMixed", &WebAXObjectProxy::IsButtonStateMixed)
 534       .SetMethod("allAttributes", &WebAXObjectProxy::AllAttributes)
 535       .SetMethod("attributesOfChildren",
 536                  &WebAXObjectProxy::AttributesOfChildren)
 537       .SetMethod("ariaControlsElementAtIndex",
 538                  &WebAXObjectProxy::AriaControlsElementAtIndex)
 539       .SetMethod("ariaFlowToElementAtIndex",
 540                  &WebAXObjectProxy::AriaFlowToElementAtIndex)
 541       .SetMethod("ariaOwnsElementAtIndex",
 542                  &WebAXObjectProxy::AriaOwnsElementAtIndex)
 543       .SetMethod("lineForIndex", &WebAXObjectProxy::LineForIndex)
 544       .SetMethod("boundsForRange", &WebAXObjectProxy::BoundsForRange)
 545       .SetMethod("childAtIndex", &WebAXObjectProxy::ChildAtIndex)
 546       .SetMethod("elementAtPoint", &WebAXObjectProxy::ElementAtPoint)
 547       .SetMethod("tableHeader", &WebAXObjectProxy::TableHeader)
 548       .SetMethod("rowHeaderAtIndex", &WebAXObjectProxy::RowHeaderAtIndex)
 549       .SetMethod("columnHeaderAtIndex", &WebAXObjectProxy::ColumnHeaderAtIndex)
 550       .SetMethod("rowIndexRange", &WebAXObjectProxy::RowIndexRange)
 551       .SetMethod("columnIndexRange", &WebAXObjectProxy::ColumnIndexRange)
 552       .SetMethod("cellForColumnAndRow", &WebAXObjectProxy::CellForColumnAndRow)
 553       .SetMethod("setSelectedTextRange",
 554                  &WebAXObjectProxy::SetSelectedTextRange)
 555       .SetMethod("isAttributeSettable", &WebAXObjectProxy::IsAttributeSettable)
 556       .SetMethod("isPressActionSupported",
 557                  &WebAXObjectProxy::IsPressActionSupported)
 558       .SetMethod("isIncrementActionSupported",
 559                  &WebAXObjectProxy::IsIncrementActionSupported)
 560       .SetMethod("isDecrementActionSupported",
 561                  &WebAXObjectProxy::IsDecrementActionSupported)
 562       .SetMethod("parentElement", &WebAXObjectProxy::ParentElement)
 563       .SetMethod("increment", &WebAXObjectProxy::Increment)
 564       .SetMethod("decrement", &WebAXObjectProxy::Decrement)
 565       .SetMethod("showMenu", &WebAXObjectProxy::ShowMenu)
 566       .SetMethod("press", &WebAXObjectProxy::Press)
 567       .SetMethod("isEqual", &WebAXObjectProxy::IsEqual)
 568       .SetMethod("setNotificationListener",
 569                  &WebAXObjectProxy::SetNotificationListener)
 570       .SetMethod("unsetNotificationListener",
 571                  &WebAXObjectProxy::UnsetNotificationListener)
 572       .SetMethod("takeFocus", &WebAXObjectProxy::TakeFocus)
 573       .SetMethod("scrollToMakeVisible", &WebAXObjectProxy::ScrollToMakeVisible)
 574       .SetMethod("scrollToMakeVisibleWithSubFocus",
 575                  &WebAXObjectProxy::ScrollToMakeVisibleWithSubFocus)
 576       .SetMethod("scrollToGlobalPoint", &WebAXObjectProxy::ScrollToGlobalPoint)
 577       .SetMethod("wordStart", &WebAXObjectProxy::WordStart)
 578       .SetMethod("wordEnd", &WebAXObjectProxy::WordEnd)
 579       .SetMethod("nextOnLine", &WebAXObjectProxy::NextOnLine)
 580       .SetMethod("previousOnLine", &WebAXObjectProxy::PreviousOnLine)
 581       // TODO(hajimehoshi): This is for backward compatibility. Remove them.
 582       .SetMethod("addNotificationListener",
 583                  &WebAXObjectProxy::SetNotificationListener)
 584       .SetMethod("removeNotificationListener",
 585                  &WebAXObjectProxy::UnsetNotificationListener)
 586       //
 587       // DEPRECATED accessible name and description accessors
 588       //
 589       .SetProperty("title", &WebAXObjectProxy::DeprecatedTitle)
 590       .SetProperty("description", &WebAXObjectProxy::DeprecatedDescription)
 591       .SetProperty("helpText", &WebAXObjectProxy::DeprecatedHelpText)
 592       .SetMethod("titleUIElement", &WebAXObjectProxy::DeprecatedTitleUIElement)
 593       .SetProperty("deprecatedTitle",
 594                    &WebAXObjectProxy::DeprecatedTitle)
 595       .SetProperty("deprecatedDescription",
 596                    &WebAXObjectProxy::DeprecatedDescription)
 597       .SetProperty("deprecatedHelpText",
 598                    &WebAXObjectProxy::DeprecatedHelpText)
 599       .SetMethod("deprecatedTitleUIElement",
 600                  &WebAXObjectProxy::DeprecatedTitleUIElement)
 601       //
 602       // NEW accessible name and description accessors
 603       //
 604       .SetProperty("name", &WebAXObjectProxy::Name)
 605       .SetProperty("nameFrom", &WebAXObjectProxy::NameFrom)
 606       .SetMethod("nameElementCount", &WebAXObjectProxy::NameElementCount)
 607       .SetMethod("nameElementAtIndex", &WebAXObjectProxy::NameElementAtIndex);
 608       // TODO(dmazzoni): add "description", etc. once LayoutTests have
 609       // been updated to call deprecatedDescription instead.
 610
 611 }
 612
 613 v8::Local<v8::Object> WebAXObjectProxy::GetChildAtIndex(unsigned index) {
 614   return factory_->GetOrCreate(accessibility_object_.childAt(index));
 615 }
 616
 617 bool WebAXObjectProxy::IsRoot() const {
 618   return false;
 619 }
 620
 621 bool WebAXObjectProxy::IsEqualToObject(const blink::WebAXObject& other) {
 622   return accessibility_object_.equals(other);
 623 }
 624
 625 void WebAXObjectProxy::NotificationReceived(
 626     blink::WebFrame* frame,
 627     const std::string& notification_name) {
 628   if (notification_callback_.IsEmpty())
 629     return;
 630
 631   v8::Local<v8::Context> context = frame->mainWorldScriptContext();
 632   if (context.IsEmpty())
 633     return;
 634
 635   v8::Isolate* isolate = blink::mainThreadIsolate();
 636
 637   v8::Local<v8::Value> argv[] = {
 638     v8::String::NewFromUtf8(isolate, notification_name.data(),
 639                             v8::String::kNormalString,
 640                             notification_name.size()),
 641   };
 642   frame->callFunctionEvenIfScriptDisabled(
 643       v8::Local<v8::Function>::New(isolate, notification_callback_),
 644       context->Global(),
 645       arraysize(argv),
 646       argv);
 647 }
 648
 649 void WebAXObjectProxy::Reset()  {
 650   notification_callback_.Reset();
 651 }
 652
 653 std::string WebAXObjectProxy::Role() {
 654   accessibility_object_.updateLayoutAndCheckValidity();
 655   return GetRole(accessibility_object_);
 656 }
 657
 658 std::string WebAXObjectProxy::DeprecatedTitle() {
 659   accessibility_object_.updateLayoutAndCheckValidity();
 660   return DeprecatedGetTitle(accessibility_object_);
 661 }
 662
 663 std::string WebAXObjectProxy::DeprecatedDescription() {
 664   accessibility_object_.updateLayoutAndCheckValidity();
 665   return DeprecatedGetDescription(accessibility_object_);
 666 }
 667
 668 std::string WebAXObjectProxy::DeprecatedHelpText() {
 669   accessibility_object_.updateLayoutAndCheckValidity();
 670   return DeprecatedGetHelpText(accessibility_object_);
 671 }
 672
 673 std::string WebAXObjectProxy::StringValue() {
 674   accessibility_object_.updateLayoutAndCheckValidity();
 675   return GetStringValue(accessibility_object_);
 676 }
 677
 678 std::string WebAXObjectProxy::Language() {
 679   accessibility_object_.updateLayoutAndCheckValidity();
 680   return GetLanguage(accessibility_object_);
 681 }
 682
 683 int WebAXObjectProxy::X() {
 684   accessibility_object_.updateLayoutAndCheckValidity();
 685   return accessibility_object_.boundingBoxRect().x;
 686 }
 687
 688 int WebAXObjectProxy::Y() {
 689   accessibility_object_.updateLayoutAndCheckValidity();
 690   return accessibility_object_.boundingBoxRect().y;
 691 }
 692
 693 int WebAXObjectProxy::Width() {
 694   accessibility_object_.updateLayoutAndCheckValidity();
 695   return accessibility_object_.boundingBoxRect().width;
 696 }
 697
 698 int WebAXObjectProxy::Height() {
 699   accessibility_object_.updateLayoutAndCheckValidity();
 700   return accessibility_object_.boundingBoxRect().height;
 701 }
 702
 703 int WebAXObjectProxy::IntValue() {
 704   accessibility_object_.updateLayoutAndCheckValidity();
 705   if (accessibility_object_.supportsRangeValue())
 706     return accessibility_object_.valueForRange();
 707   else if (accessibility_object_.role() == blink::WebAXRoleHeading)
 708     return accessibility_object_.headingLevel();
 709   else
 710     return atoi(accessibility_object_.stringValue().utf8().data());
 711 }
 712
 713 int WebAXObjectProxy::MinValue() {
 714   accessibility_object_.updateLayoutAndCheckValidity();
 715   return accessibility_object_.minValueForRange();
 716 }
 717
 718 int WebAXObjectProxy::MaxValue() {
 719   accessibility_object_.updateLayoutAndCheckValidity();
 720   return accessibility_object_.maxValueForRange();
 721 }
 722
 723 std::string WebAXObjectProxy::ValueDescription() {
 724   accessibility_object_.updateLayoutAndCheckValidity();
 725   return GetValueDescription(accessibility_object_);
 726 }
 727
 728 int WebAXObjectProxy::ChildrenCount() {
 729   accessibility_object_.updateLayoutAndCheckValidity();
 730   int count = 1; // Root object always has only one child, the WebView.
 731   if (!IsRoot())
 732     count = accessibility_object_.childCount();
 733   return count;
 734 }
 735
 736 int WebAXObjectProxy::SelectionStart() {
 737   accessibility_object_.updateLayoutAndCheckValidity();
 738   return accessibility_object_.selectionStart();
 739 }
 740
 741 int WebAXObjectProxy::SelectionEnd() {
 742   accessibility_object_.updateLayoutAndCheckValidity();
 743   return accessibility_object_.selectionEnd();
 744 }
 745
 746 int WebAXObjectProxy::SelectionStartLineNumber() {
 747   accessibility_object_.updateLayoutAndCheckValidity();
 748   return accessibility_object_.selectionStartLineNumber();
 749 }
 750
 751 int WebAXObjectProxy::SelectionEndLineNumber() {
 752   accessibility_object_.updateLayoutAndCheckValidity();
 753   return accessibility_object_.selectionEndLineNumber();
 754 }
 755
 756 bool WebAXObjectProxy::IsEnabled() {
 757   accessibility_object_.updateLayoutAndCheckValidity();
 758   return accessibility_object_.isEnabled();
 759 }
 760
 761 bool WebAXObjectProxy::IsRequired() {
 762   accessibility_object_.updateLayoutAndCheckValidity();
 763   return accessibility_object_.isRequired();
 764 }
 765
 766 bool WebAXObjectProxy::IsRichlyEditable() {
 767   accessibility_object_.updateLayoutAndCheckValidity();
 768   return accessibility_object_.isRichlyEditable();
 769 }
 770
 771 bool WebAXObjectProxy::IsFocused() {
 772   accessibility_object_.updateLayoutAndCheckValidity();
 773   return accessibility_object_.isFocused();
 774 }
 775
 776 bool WebAXObjectProxy::IsFocusable() {
 777   accessibility_object_.updateLayoutAndCheckValidity();
 778   return accessibility_object_.canSetFocusAttribute();
 779 }
 780
 781 bool WebAXObjectProxy::IsSelected() {
 782   accessibility_object_.updateLayoutAndCheckValidity();
 783   return accessibility_object_.isSelected();
 784 }
 785
 786 bool WebAXObjectProxy::IsSelectable() {
 787   accessibility_object_.updateLayoutAndCheckValidity();
 788   return accessibility_object_.canSetSelectedAttribute();
 789 }
 790
 791 bool WebAXObjectProxy::IsMultiSelectable() {
 792   accessibility_object_.updateLayoutAndCheckValidity();
 793   return accessibility_object_.isMultiSelectable();
 794 }
 795
 796 bool WebAXObjectProxy::IsSelectedOptionActive() {
 797   accessibility_object_.updateLayoutAndCheckValidity();
 798   return accessibility_object_.isSelectedOptionActive();
 799 }
 800
 801 bool WebAXObjectProxy::IsExpanded() {
 802   accessibility_object_.updateLayoutAndCheckValidity();
 803   return accessibility_object_.isExpanded() == blink::WebAXExpandedExpanded;
 804 }
 805
 806 bool WebAXObjectProxy::IsChecked() {
 807   accessibility_object_.updateLayoutAndCheckValidity();
 808   return accessibility_object_.isChecked();
 809 }
 810
 811 bool WebAXObjectProxy::IsCollapsed() {
 812   accessibility_object_.updateLayoutAndCheckValidity();
 813   return accessibility_object_.isExpanded() == blink::WebAXExpandedCollapsed;
 814 }
 815
 816 bool WebAXObjectProxy::IsVisible() {
 817   accessibility_object_.updateLayoutAndCheckValidity();
 818   return accessibility_object_.isVisible();
 819 }
 820
 821 bool WebAXObjectProxy::IsOffScreen() {
 822   accessibility_object_.updateLayoutAndCheckValidity();
 823   return accessibility_object_.isOffScreen();
 824 }
 825
 826 bool WebAXObjectProxy::HasPopup() {
 827   accessibility_object_.updateLayoutAndCheckValidity();
 828   return accessibility_object_.ariaHasPopup();
 829 }
 830
 831 bool WebAXObjectProxy::IsValid() {
 832   accessibility_object_.updateLayoutAndCheckValidity();
 833   return !accessibility_object_.isDetached();
 834 }
 835
 836 bool WebAXObjectProxy::IsReadOnly() {
 837   accessibility_object_.updateLayoutAndCheckValidity();
 838   return accessibility_object_.isReadOnly();
 839 }
 840
 841 unsigned int WebAXObjectProxy::BackgroundColor() {
 842   accessibility_object_.updateLayoutAndCheckValidity();
 843   return accessibility_object_.backgroundColor();
 844 }
 845
 846 unsigned int WebAXObjectProxy::Color() {
 847   accessibility_object_.updateLayoutAndCheckValidity();
 848   unsigned int color = accessibility_object_.color();
 849   // Remove the alpha because it's always 1 and thus not informative.
 850   return color & 0xFFFFFF;
 851 }
 852
 853 // For input elements of type color.
 854 unsigned int WebAXObjectProxy::ColorValue() {
 855   accessibility_object_.updateLayoutAndCheckValidity();
 856   return accessibility_object_.colorValue();
 857 }
 858
 859 float WebAXObjectProxy::FontSize() {
 860   accessibility_object_.updateLayoutAndCheckValidity();
 861   return accessibility_object_.fontSize();
 862 }
 863
 864 std::string WebAXObjectProxy::Orientation() {
 865   accessibility_object_.updateLayoutAndCheckValidity();
 866   if (accessibility_object_.orientation() == blink::WebAXOrientationVertical)
 867     return "AXOrientation: AXVerticalOrientation";
 868   else if (accessibility_object_.orientation()
 869            == blink::WebAXOrientationHorizontal)
 870     return "AXOrientation: AXHorizontalOrientation";
 871
 872   return std::string();
 873 }
 874
 875 int WebAXObjectProxy::PosInSet() {
 876   accessibility_object_.updateLayoutAndCheckValidity();
 877   return accessibility_object_.posInSet();
 878 }
 879
 880 int WebAXObjectProxy::SetSize() {
 881   accessibility_object_.updateLayoutAndCheckValidity();
 882   return accessibility_object_.setSize();
 883 }
 884
 885 int WebAXObjectProxy::ClickPointX() {
 886   accessibility_object_.updateLayoutAndCheckValidity();
 887   return accessibility_object_.clickPoint().x;
 888 }
 889
 890 int WebAXObjectProxy::ClickPointY() {
 891   accessibility_object_.updateLayoutAndCheckValidity();
 892   return accessibility_object_.clickPoint().y;
 893 }
 894
 895 int32_t WebAXObjectProxy::RowCount() {
 896   accessibility_object_.updateLayoutAndCheckValidity();
 897   return static_cast<int32_t>(accessibility_object_.rowCount());
 898 }
 899
 900 int32_t WebAXObjectProxy::RowHeadersCount() {
 901   accessibility_object_.updateLayoutAndCheckValidity();
 902   blink::WebVector<blink::WebAXObject> headers;
 903   accessibility_object_.rowHeaders(headers);
 904   return static_cast<int32_t>(headers.size());
 905 }
 906
 907 int32_t WebAXObjectProxy::ColumnCount() {
 908   accessibility_object_.updateLayoutAndCheckValidity();
 909   return static_cast<int32_t>(accessibility_object_.columnCount());
 910 }
 911
 912 int32_t WebAXObjectProxy::ColumnHeadersCount()
 913 {
 914   accessibility_object_.updateLayoutAndCheckValidity();
 915   blink::WebVector<blink::WebAXObject> headers;
 916   accessibility_object_.columnHeaders(headers);
 917   return static_cast<int32_t>(headers.size());
 918 }
 919
 920 bool WebAXObjectProxy::IsClickable() {
 921   accessibility_object_.updateLayoutAndCheckValidity();
 922   return accessibility_object_.isClickable();
 923 }
 924
 925 bool WebAXObjectProxy::IsButtonStateMixed() {
 926   accessibility_object_.updateLayoutAndCheckValidity();
 927   return accessibility_object_.isButtonStateMixed();
 928 }
 929
 930 v8::Local<v8::Object> WebAXObjectProxy::AriaControlsElementAtIndex(
 931                                                                 unsigned index)
 932 {
 933   accessibility_object_.updateLayoutAndCheckValidity();
 934   blink::WebVector<blink::WebAXObject> elements;
 935   accessibility_object_.ariaControls(elements);
 936   size_t elementCount = elements.size();
 937   if (index >= elementCount)
 938     return v8::Local<v8::Object>();
 939
 940   return factory_->GetOrCreate(elements[index]);
 941 }
 942
 943 v8::Local<v8::Object> WebAXObjectProxy::AriaFlowToElementAtIndex(
 944                                                                 unsigned index)
 945 {
 946   accessibility_object_.updateLayoutAndCheckValidity();
 947   blink::WebVector<blink::WebAXObject> elements;
 948   accessibility_object_.ariaFlowTo(elements);
 949   size_t elementCount = elements.size();
 950   if (index >= elementCount)
 951     return v8::Local<v8::Object>();
 952
 953   return factory_->GetOrCreate(elements[index]);
 954 }
 955
 956 v8::Local<v8::Object> WebAXObjectProxy::AriaOwnsElementAtIndex(unsigned index)
 957 {
 958   accessibility_object_.updateLayoutAndCheckValidity();
 959   blink::WebVector<blink::WebAXObject> elements;
 960   accessibility_object_.ariaOwns(elements);
 961   size_t elementCount = elements.size();
 962   if (index >= elementCount)
 963     return v8::Local<v8::Object>();
 964
 965   return factory_->GetOrCreate(elements[index]);
 966 }
 967
 968 std::string WebAXObjectProxy::AllAttributes() {
 969   accessibility_object_.updateLayoutAndCheckValidity();
 970   return GetAttributes(accessibility_object_);
 971 }
 972
 973 std::string WebAXObjectProxy::AttributesOfChildren() {
 974   accessibility_object_.updateLayoutAndCheckValidity();
 975   AttributesCollector collector;
 976   unsigned size = accessibility_object_.childCount();
 977   for (unsigned i = 0; i < size; ++i)
 978     collector.CollectAttributes(accessibility_object_.childAt(i));
 979   return collector.attributes();
 980 }
 981
 982 int WebAXObjectProxy::LineForIndex(int index) {
 983   accessibility_object_.updateLayoutAndCheckValidity();
 984   blink::WebVector<int> line_breaks;
 985   accessibility_object_.lineBreaks(line_breaks);
 986   int line = 0;
 987   int vector_size = static_cast<int>(line_breaks.size());
 988   while (line < vector_size && line_breaks[line] <= index)
 989     line++;
 990   return line;
 991 }
 992
 993 std::string WebAXObjectProxy::BoundsForRange(int start, int end) {
 994   accessibility_object_.updateLayoutAndCheckValidity();
 995   if (accessibility_object_.role() != blink::WebAXRoleStaticText)
 996     return std::string();
 997
 998   if (!accessibility_object_.updateLayoutAndCheckValidity())
 999     return std::string();
1000
1001   int len = end - start;
1002
1003   // Get the bounds for each character and union them into one large rectangle.
1004   // This is just for testing so it doesn't need to be efficient.
1005   blink::WebRect bounds = BoundsForCharacter(accessibility_object_, start);
1006   for (int i = 1; i < len; i++) {
1007     blink::WebRect next = BoundsForCharacter(accessibility_object_, start + i);
1008     int right = std::max(bounds.x + bounds.width, next.x + next.width);
1009     int bottom = std::max(bounds.y + bounds.height, next.y + next.height);
1010     bounds.x = std::min(bounds.x, next.x);
1011     bounds.y = std::min(bounds.y, next.y);
1012     bounds.width = right - bounds.x;
1013     bounds.height = bottom - bounds.y;
1014   }
1015
1016   return base::StringPrintf("{x: %d, y: %d, width: %d, height: %d}",
1017                             bounds.x, bounds.y, bounds.width, bounds.height);
1018 }
1019
1020 v8::Local<v8::Object> WebAXObjectProxy::ChildAtIndex(int index) {
1021   accessibility_object_.updateLayoutAndCheckValidity();
1022   return GetChildAtIndex(index);
1023 }
1024
1025 v8::Local<v8::Object> WebAXObjectProxy::ElementAtPoint(int x, int y) {
1026   accessibility_object_.updateLayoutAndCheckValidity();
1027   blink::WebPoint point(x, y);
1028   blink::WebAXObject obj = accessibility_object_.hitTest(point);
1029   if (obj.isNull())
1030     return v8::Local<v8::Object>();
1031
1032   return factory_->GetOrCreate(obj);
1033 }
1034
1035 v8::Local<v8::Object> WebAXObjectProxy::TableHeader() {
1036   accessibility_object_.updateLayoutAndCheckValidity();
1037   blink::WebAXObject obj = accessibility_object_.headerContainerObject();
1038   if (obj.isNull())
1039     return v8::Local<v8::Object>();
1040
1041   return factory_->GetOrCreate(obj);
1042 }
1043
1044 v8::Local<v8::Object> WebAXObjectProxy::RowHeaderAtIndex(unsigned index) {
1045   accessibility_object_.updateLayoutAndCheckValidity();
1046   blink::WebVector<blink::WebAXObject> headers;
1047   accessibility_object_.rowHeaders(headers);
1048   size_t headerCount = headers.size();
1049   if (index >= headerCount)
1050     return v8::Local<v8::Object>();
1051
1052   return factory_->GetOrCreate(headers[index]);
1053 }
1054
1055 v8::Local<v8::Object> WebAXObjectProxy::ColumnHeaderAtIndex(unsigned index) {
1056   accessibility_object_.updateLayoutAndCheckValidity();
1057   blink::WebVector<blink::WebAXObject> headers;
1058   accessibility_object_.columnHeaders(headers);
1059   size_t headerCount = headers.size();
1060   if (index >= headerCount)
1061     return v8::Local<v8::Object>();
1062
1063   return factory_->GetOrCreate(headers[index]);
1064 }
1065
1066 std::string WebAXObjectProxy::RowIndexRange() {
1067   accessibility_object_.updateLayoutAndCheckValidity();
1068   unsigned row_index = accessibility_object_.cellRowIndex();
1069   unsigned row_span = accessibility_object_.cellRowSpan();
1070   return base::StringPrintf("{%d, %d}", row_index, row_span);
1071 }
1072
1073 std::string WebAXObjectProxy::ColumnIndexRange() {
1074   accessibility_object_.updateLayoutAndCheckValidity();
1075   unsigned column_index = accessibility_object_.cellColumnIndex();
1076   unsigned column_span = accessibility_object_.cellColumnSpan();
1077   return base::StringPrintf("{%d, %d}", column_index, column_span);
1078 }
1079
1080 v8::Local<v8::Object> WebAXObjectProxy::CellForColumnAndRow(
1081     int column, int row) {
1082   accessibility_object_.updateLayoutAndCheckValidity();
1083   blink::WebAXObject obj =
1084       accessibility_object_.cellForColumnAndRow(column, row);
1085   if (obj.isNull())
1086     return v8::Local<v8::Object>();
1087
1088   return factory_->GetOrCreate(obj);
1089 }
1090
1091 v8::Local<v8::Object> WebAXObjectProxy::DeprecatedTitleUIElement() {
1092   accessibility_object_.updateLayoutAndCheckValidity();
1093   blink::WebAXObject obj = accessibility_object_.deprecatedTitleUIElement();
1094   if (obj.isNull())
1095     return v8::Local<v8::Object>();
1096
1097   return factory_->GetOrCreate(obj);
1098 }
1099
1100 void WebAXObjectProxy::SetSelectedTextRange(int selection_start,
1101                                             int length) {
1102   accessibility_object_.updateLayoutAndCheckValidity();
1103   accessibility_object_.setSelectedTextRange(selection_start,
1104                                               selection_start + length);
1105 }
1106
1107 bool WebAXObjectProxy::IsAttributeSettable(const std::string& attribute) {
1108   accessibility_object_.updateLayoutAndCheckValidity();
1109   bool settable = false;
1110   if (attribute == "AXValue")
1111     settable = accessibility_object_.canSetValueAttribute();
1112   return settable;
1113 }
1114
1115 bool WebAXObjectProxy::IsPressActionSupported() {
1116   accessibility_object_.updateLayoutAndCheckValidity();
1117   return accessibility_object_.canPress();
1118 }
1119
1120 bool WebAXObjectProxy::IsIncrementActionSupported() {
1121   accessibility_object_.updateLayoutAndCheckValidity();
1122   return accessibility_object_.canIncrement();
1123 }
1124
1125 bool WebAXObjectProxy::IsDecrementActionSupported() {
1126   accessibility_object_.updateLayoutAndCheckValidity();
1127   return accessibility_object_.canDecrement();
1128 }
1129
1130 v8::Local<v8::Object> WebAXObjectProxy::ParentElement() {
1131   accessibility_object_.updateLayoutAndCheckValidity();
1132   blink::WebAXObject parent_object = accessibility_object_.parentObject();
1133   while (parent_object.accessibilityIsIgnored())
1134     parent_object = parent_object.parentObject();
1135   return factory_->GetOrCreate(parent_object);
1136 }
1137
1138 void WebAXObjectProxy::Increment() {
1139   accessibility_object_.updateLayoutAndCheckValidity();
1140   accessibility_object_.increment();
1141 }
1142
1143 void WebAXObjectProxy::Decrement() {
1144   accessibility_object_.updateLayoutAndCheckValidity();
1145   accessibility_object_.decrement();
1146 }
1147
1148 void WebAXObjectProxy::ShowMenu() {
1149   accessibility_object_.showContextMenu();
1150 }
1151
1152 void WebAXObjectProxy::Press() {
1153   accessibility_object_.updateLayoutAndCheckValidity();
1154   accessibility_object_.press();
1155 }
1156
1157 bool WebAXObjectProxy::IsEqual(v8::Local<v8::Object> proxy) {
1158   WebAXObjectProxy* unwrapped_proxy = NULL;
1159   if (!gin::ConvertFromV8(blink::mainThreadIsolate(), proxy, &unwrapped_proxy))
1160     return false;
1161   return unwrapped_proxy->IsEqualToObject(accessibility_object_);
1162 }
1163
1164 void WebAXObjectProxy::SetNotificationListener(
1165     v8::Local<v8::Function> callback) {
1166   v8::Isolate* isolate = blink::mainThreadIsolate();
1167   notification_callback_.Reset(isolate, callback);
1168 }
1169
1170 void WebAXObjectProxy::UnsetNotificationListener() {
1171   notification_callback_.Reset();
1172 }
1173
1174 void WebAXObjectProxy::TakeFocus() {
1175   accessibility_object_.updateLayoutAndCheckValidity();
1176   accessibility_object_.setFocused(true);
1177 }
1178
1179 void WebAXObjectProxy::ScrollToMakeVisible() {
1180   accessibility_object_.updateLayoutAndCheckValidity();
1181   accessibility_object_.scrollToMakeVisible();
1182 }
1183
1184 void WebAXObjectProxy::ScrollToMakeVisibleWithSubFocus(int x, int y,
1185                                                        int width, int height) {
1186   accessibility_object_.updateLayoutAndCheckValidity();
1187   accessibility_object_.scrollToMakeVisibleWithSubFocus(
1188       blink::WebRect(x, y, width, height));
1189 }
1190
1191 void WebAXObjectProxy::ScrollToGlobalPoint(int x, int y) {
1192   accessibility_object_.updateLayoutAndCheckValidity();
1193   accessibility_object_.scrollToGlobalPoint(blink::WebPoint(x, y));
1194 }
1195
1196 int WebAXObjectProxy::WordStart(int character_index) {
1197   accessibility_object_.updateLayoutAndCheckValidity();
1198   if (accessibility_object_.role() != blink::WebAXRoleStaticText)
1199     return -1;
1200
1201   int word_start = 0, word_end = 0;
1202   GetBoundariesForOneWord(accessibility_object_, character_index,
1203                           word_start, word_end);
1204   return word_start;
1205 }
1206
1207 int WebAXObjectProxy::WordEnd(int character_index) {
1208   accessibility_object_.updateLayoutAndCheckValidity();
1209   if (accessibility_object_.role() != blink::WebAXRoleStaticText)
1210     return -1;
1211
1212   int word_start = 0, word_end = 0;
1213   GetBoundariesForOneWord(accessibility_object_, character_index,
1214                           word_start, word_end);
1215   return word_end;
1216 }
1217
1218 v8::Local<v8::Object> WebAXObjectProxy::NextOnLine() {
1219   accessibility_object_.updateLayoutAndCheckValidity();
1220   blink::WebAXObject obj = accessibility_object_.nextOnLine();
1221   if (obj.isNull())
1222     return v8::Local<v8::Object>();
1223
1224   return factory_->GetOrCreate(obj);
1225 }
1226
1227 v8::Local<v8::Object> WebAXObjectProxy::PreviousOnLine() {
1228   accessibility_object_.updateLayoutAndCheckValidity();
1229   blink::WebAXObject obj = accessibility_object_.previousOnLine();
1230   if (obj.isNull())
1231     return v8::Local<v8::Object>();
1232
1233   return factory_->GetOrCreate(obj);
1234 }
1235
1236 std::string WebAXObjectProxy::Name() {
1237   accessibility_object_.updateLayoutAndCheckValidity();
1238   blink::WebAXNameFrom nameFrom;
1239   blink::WebVector<blink::WebAXObject> nameObjects;
1240   return accessibility_object_.name(nameFrom, nameObjects).utf8();
1241 }
1242
1243 std::string WebAXObjectProxy::NameFrom() {
1244   accessibility_object_.updateLayoutAndCheckValidity();
1245   blink::WebAXNameFrom nameFrom = blink::WebAXNameFromContents;
1246   blink::WebVector<blink::WebAXObject> nameObjects;
1247   accessibility_object_.name(nameFrom, nameObjects);
1248   switch(nameFrom) {
1249     case blink::WebAXNameFromAttribute:
1250       return "attribute";
1251     case blink::WebAXNameFromContents:
1252       return "contents";
1253     case blink::WebAXNameFromPlaceholder:
1254       return "placeholder";
1255     case blink::WebAXNameFromRelatedElement:
1256       return "relatedElement";
1257     default:
1258       return "unknown";
1259   }
1260 }
1261
1262 int WebAXObjectProxy::NameElementCount() {
1263   accessibility_object_.updateLayoutAndCheckValidity();
1264   blink::WebAXNameFrom nameFrom;
1265   blink::WebVector<blink::WebAXObject> nameObjects;
1266   accessibility_object_.name(nameFrom, nameObjects);
1267   return static_cast<int>(nameObjects.size());
1268 }
1269
1270 v8::Local<v8::Object> WebAXObjectProxy::NameElementAtIndex(unsigned index) {
1271   accessibility_object_.updateLayoutAndCheckValidity();
1272   blink::WebAXNameFrom nameFrom;
1273   blink::WebVector<blink::WebAXObject> nameObjects;
1274   accessibility_object_.name(nameFrom, nameObjects);
1275   if (index >= nameObjects.size())
1276     return v8::Local<v8::Object>();
1277   return factory_->GetOrCreate(nameObjects[index]);
1278 }
1279
1280 RootWebAXObjectProxy::RootWebAXObjectProxy(
1281     const blink::WebAXObject &object, Factory *factory)
1282     : WebAXObjectProxy(object, factory) {
1283 }
1284
1285 v8::Local<v8::Object> RootWebAXObjectProxy::GetChildAtIndex(unsigned index) {
1286   if (index)
1287     return v8::Local<v8::Object>();
1288
1289   return factory()->GetOrCreate(accessibility_object());
1290 }
1291
1292 bool RootWebAXObjectProxy::IsRoot() const {
1293   return true;
1294 }
1295
1296 WebAXObjectProxyList::WebAXObjectProxyList()
1297     : elements_(blink::mainThreadIsolate()) {
1298 }
1299
1300 WebAXObjectProxyList::~WebAXObjectProxyList() {
1301   Clear();
1302 }
1303
1304 void WebAXObjectProxyList::Clear() {
1305   v8::Isolate* isolate = blink::mainThreadIsolate();
1306   v8::HandleScope handle_scope(isolate);
1307   size_t elementCount = elements_.Size();
1308   for (size_t i = 0; i < elementCount; i++) {
1309     WebAXObjectProxy* unwrapped_object = NULL;
1310     bool result = gin::ConvertFromV8(isolate, elements_.Get(i),
1311                                      &unwrapped_object);
1312     DCHECK(result);
1313     DCHECK(unwrapped_object);
1314     unwrapped_object->Reset();
1315   }
1316   elements_.Clear();
1317 }
1318
1319 v8::Local<v8::Object> WebAXObjectProxyList::GetOrCreate(
1320     const blink::WebAXObject& object) {
1321   if (object.isNull())
1322     return v8::Local<v8::Object>();
1323
1324   v8::Isolate* isolate = blink::mainThreadIsolate();
1325
1326   size_t elementCount = elements_.Size();
1327   for (size_t i = 0; i < elementCount; i++) {
1328     WebAXObjectProxy* unwrapped_object = NULL;
1329     bool result = gin::ConvertFromV8(isolate, elements_.Get(i),
1330                                      &unwrapped_object);
1331     DCHECK(result);
1332     DCHECK(unwrapped_object);
1333     if (unwrapped_object->IsEqualToObject(object))
1334       return elements_.Get(i);
1335   }
1336
1337   v8::Local<v8::Value> value_handle = gin::CreateHandle(
1338       isolate, new WebAXObjectProxy(object, this)).ToV8();
1339   if (value_handle.IsEmpty())
1340     return v8::Local<v8::Object>();
1341   v8::Local<v8::Object> handle = value_handle->ToObject(isolate);
1342   elements_.Append(handle);
1343   return handle;
1344 }
1345
1346 }  // namespace test_runner