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