blob: 6581646fd25e50c23dc9826a0c2e468c9a25fa21 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/glue/webaccessibility.h"
#include <set>
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebAccessibilityObject.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebAccessibilityRole.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocumentType.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFormControlElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebRect.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebSize.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebVector.h"
using base::DoubleToString;
using base::IntToString;
using WebKit::WebAccessibilityRole;
using WebKit::WebAccessibilityObject;
namespace {
std::string IntVectorToString(const std::vector<int>& items) {
std::string str;
for (size_t i = 0; i < items.size(); ++i) {
if (i > 0)
str += ",";
str += IntToString(items[i]);
}
return str;
}
} // Anonymous namespace
namespace webkit_glue {
// Provides a conversion between the WebKit::WebAccessibilityRole and a role
// supported on the Browser side. Listed alphabetically by the
// WebAccessibilityRole (except for default role).
WebAccessibility::Role ConvertRole(WebKit::WebAccessibilityRole role) {
switch (role) {
case WebKit::WebAccessibilityRoleAnnotation:
return WebAccessibility::ROLE_ANNOTATION;
case WebKit::WebAccessibilityRoleApplication:
return WebAccessibility::ROLE_APPLICATION;
case WebKit::WebAccessibilityRoleApplicationAlert:
return WebAccessibility::ROLE_ALERT;
case WebKit::WebAccessibilityRoleApplicationAlertDialog:
return WebAccessibility::ROLE_ALERT_DIALOG;
case WebKit::WebAccessibilityRoleApplicationDialog:
return WebAccessibility::ROLE_DIALOG;
case WebKit::WebAccessibilityRoleApplicationLog:
return WebAccessibility::ROLE_LOG;
case WebKit::WebAccessibilityRoleApplicationMarquee:
return WebAccessibility::ROLE_MARQUEE;
case WebKit::WebAccessibilityRoleApplicationStatus:
return WebAccessibility::ROLE_STATUS;
case WebKit::WebAccessibilityRoleApplicationTimer:
return WebAccessibility::ROLE_TIMER;
case WebKit::WebAccessibilityRoleBrowser:
return WebAccessibility::ROLE_BROWSER;
case WebKit::WebAccessibilityRoleBusyIndicator:
return WebAccessibility::ROLE_BUSY_INDICATOR;
case WebKit::WebAccessibilityRoleButton:
return WebAccessibility::ROLE_BUTTON;
case WebKit::WebAccessibilityRoleCell:
return WebAccessibility::ROLE_CELL;
case WebKit::WebAccessibilityRoleCheckBox:
return WebAccessibility::ROLE_CHECKBOX;
case WebKit::WebAccessibilityRoleColorWell:
return WebAccessibility::ROLE_COLOR_WELL;
case WebKit::WebAccessibilityRoleColumn:
return WebAccessibility::ROLE_COLUMN;
case WebKit::WebAccessibilityRoleColumnHeader:
return WebAccessibility::ROLE_COLUMN_HEADER;
case WebKit::WebAccessibilityRoleComboBox:
return WebAccessibility::ROLE_COMBO_BOX;
case WebKit::WebAccessibilityRoleDefinitionListDefinition:
return WebAccessibility::ROLE_DEFINITION_LIST_DEFINITION;
case WebKit::WebAccessibilityRoleDefinitionListTerm:
return WebAccessibility::ROLE_DEFINITION_LIST_TERM;
case WebKit::WebAccessibilityRoleDirectory:
return WebAccessibility::ROLE_DIRECTORY;
case WebKit::WebAccessibilityRoleDisclosureTriangle:
return WebAccessibility::ROLE_DISCLOSURE_TRIANGLE;
case WebKit::WebAccessibilityRoleDocument:
return WebAccessibility::ROLE_DOCUMENT;
case WebKit::WebAccessibilityRoleDocumentArticle:
return WebAccessibility::ROLE_ARTICLE;
case WebKit::WebAccessibilityRoleDocumentMath:
return WebAccessibility::ROLE_MATH;
case WebKit::WebAccessibilityRoleDocumentNote:
return WebAccessibility::ROLE_NOTE;
case WebKit::WebAccessibilityRoleDocumentRegion:
return WebAccessibility::ROLE_REGION;
case WebKit::WebAccessibilityRoleDrawer:
return WebAccessibility::ROLE_DRAWER;
case WebKit::WebAccessibilityRoleEditableText:
return WebAccessibility::ROLE_EDITABLE_TEXT;
case WebKit::WebAccessibilityRoleGrid:
return WebAccessibility::ROLE_GRID;
case WebKit::WebAccessibilityRoleGroup:
return WebAccessibility::ROLE_GROUP;
case WebKit::WebAccessibilityRoleGrowArea:
return WebAccessibility::ROLE_GROW_AREA;
case WebKit::WebAccessibilityRoleHeading:
return WebAccessibility::ROLE_HEADING;
case WebKit::WebAccessibilityRoleHelpTag:
return WebAccessibility::ROLE_HELP_TAG;
case WebKit::WebAccessibilityRoleIgnored:
return WebAccessibility::ROLE_IGNORED;
case WebKit::WebAccessibilityRoleImage:
return WebAccessibility::ROLE_IMAGE;
case WebKit::WebAccessibilityRoleImageMap:
return WebAccessibility::ROLE_IMAGE_MAP;
case WebKit::WebAccessibilityRoleImageMapLink:
return WebAccessibility::ROLE_IMAGE_MAP_LINK;
case WebKit::WebAccessibilityRoleIncrementor:
return WebAccessibility::ROLE_INCREMENTOR;
case WebKit::WebAccessibilityRoleLandmarkApplication:
return WebAccessibility::ROLE_LANDMARK_APPLICATION;
case WebKit::WebAccessibilityRoleLandmarkBanner:
return WebAccessibility::ROLE_LANDMARK_BANNER;
case WebKit::WebAccessibilityRoleLandmarkComplementary:
return WebAccessibility::ROLE_LANDMARK_COMPLEMENTARY;
case WebKit::WebAccessibilityRoleLandmarkContentInfo:
return WebAccessibility::ROLE_LANDMARK_CONTENTINFO;
case WebKit::WebAccessibilityRoleLandmarkMain:
return WebAccessibility::ROLE_LANDMARK_MAIN;
case WebKit::WebAccessibilityRoleLandmarkNavigation:
return WebAccessibility::ROLE_LANDMARK_NAVIGATION;
case WebKit::WebAccessibilityRoleLandmarkSearch:
return WebAccessibility::ROLE_LANDMARK_SEARCH;
case WebKit::WebAccessibilityRoleLink:
return WebAccessibility::ROLE_LINK;
case WebKit::WebAccessibilityRoleList:
return WebAccessibility::ROLE_LIST;
case WebKit::WebAccessibilityRoleListBox:
return WebAccessibility::ROLE_LISTBOX;
case WebKit::WebAccessibilityRoleListBoxOption:
return WebAccessibility::ROLE_LISTBOX_OPTION;
case WebKit::WebAccessibilityRoleListItem:
return WebAccessibility::ROLE_LIST_ITEM;
case WebKit::WebAccessibilityRoleListMarker:
return WebAccessibility::ROLE_LIST_MARKER;
case WebKit::WebAccessibilityRoleMatte:
return WebAccessibility::ROLE_MATTE;
case WebKit::WebAccessibilityRoleMenu:
return WebAccessibility::ROLE_MENU;
case WebKit::WebAccessibilityRoleMenuBar:
return WebAccessibility::ROLE_MENU_BAR;
case WebKit::WebAccessibilityRoleMenuButton:
return WebAccessibility::ROLE_MENU_BUTTON;
case WebKit::WebAccessibilityRoleMenuItem:
return WebAccessibility::ROLE_MENU_ITEM;
case WebKit::WebAccessibilityRoleMenuListOption:
return WebAccessibility::ROLE_MENU_LIST_OPTION;
case WebKit::WebAccessibilityRoleMenuListPopup:
return WebAccessibility::ROLE_MENU_LIST_POPUP;
case WebKit::WebAccessibilityRoleOutline:
return WebAccessibility::ROLE_OUTLINE;
case WebKit::WebAccessibilityRolePopUpButton:
return WebAccessibility::ROLE_POPUP_BUTTON;
case WebKit::WebAccessibilityRoleProgressIndicator:
return WebAccessibility::ROLE_PROGRESS_INDICATOR;
case WebKit::WebAccessibilityRoleRadioButton:
return WebAccessibility::ROLE_RADIO_BUTTON;
case WebKit::WebAccessibilityRoleRadioGroup:
return WebAccessibility::ROLE_RADIO_GROUP;
case WebKit::WebAccessibilityRoleRow:
return WebAccessibility::ROLE_ROW;
case WebKit::WebAccessibilityRoleRowHeader:
return WebAccessibility::ROLE_ROW_HEADER;
case WebKit::WebAccessibilityRoleRuler:
return WebAccessibility::ROLE_RULER;
case WebKit::WebAccessibilityRoleRulerMarker:
return WebAccessibility::ROLE_RULER_MARKER;
case WebKit::WebAccessibilityRoleScrollArea:
return WebAccessibility::ROLE_SCROLLAREA;
case WebKit::WebAccessibilityRoleScrollBar:
return WebAccessibility::ROLE_SCROLLBAR;
case WebKit::WebAccessibilityRoleSheet:
return WebAccessibility::ROLE_SHEET;
case WebKit::WebAccessibilityRoleSlider:
return WebAccessibility::ROLE_SLIDER;
case WebKit::WebAccessibilityRoleSliderThumb:
return WebAccessibility::ROLE_SLIDER_THUMB;
case WebKit::WebAccessibilityRoleSplitGroup:
return WebAccessibility::ROLE_SPLIT_GROUP;
case WebKit::WebAccessibilityRoleSplitter:
return WebAccessibility::ROLE_SPLITTER;
case WebKit::WebAccessibilityRoleStaticText:
return WebAccessibility::ROLE_STATIC_TEXT;
case WebKit::WebAccessibilityRoleSystemWide:
return WebAccessibility::ROLE_SYSTEM_WIDE;
case WebKit::WebAccessibilityRoleTab:
return WebAccessibility::ROLE_TAB;
case WebKit::WebAccessibilityRoleTabGroup:
return WebAccessibility::ROLE_TAB_GROUP_UNUSED;
case WebKit::WebAccessibilityRoleTabList:
return WebAccessibility::ROLE_TAB_LIST;
case WebKit::WebAccessibilityRoleTabPanel:
return WebAccessibility::ROLE_TAB_PANEL;
case WebKit::WebAccessibilityRoleTable:
return WebAccessibility::ROLE_TABLE;
case WebKit::WebAccessibilityRoleTableHeaderContainer:
return WebAccessibility::ROLE_TABLE_HEADER_CONTAINER;
case WebKit::WebAccessibilityRoleTextArea:
return WebAccessibility::ROLE_TEXTAREA;
case WebKit::WebAccessibilityRoleTextField:
return WebAccessibility::ROLE_TEXT_FIELD;
case WebKit::WebAccessibilityRoleToolbar:
return WebAccessibility::ROLE_TOOLBAR;
case WebKit::WebAccessibilityRoleTreeGrid:
return WebAccessibility::ROLE_TREE_GRID;
case WebKit::WebAccessibilityRoleTreeItemRole:
return WebAccessibility::ROLE_TREE_ITEM;
case WebKit::WebAccessibilityRoleTreeRole:
return WebAccessibility::ROLE_TREE;
case WebKit::WebAccessibilityRoleUserInterfaceTooltip:
return WebAccessibility::ROLE_TOOLTIP;
case WebKit::WebAccessibilityRoleValueIndicator:
return WebAccessibility::ROLE_VALUE_INDICATOR;
case WebKit::WebAccessibilityRoleWebArea:
return WebAccessibility::ROLE_WEB_AREA;
case WebKit::WebAccessibilityRoleWebCoreLink:
return WebAccessibility::ROLE_WEBCORE_LINK;
case WebKit::WebAccessibilityRoleWindow:
return WebAccessibility::ROLE_WINDOW;
default:
return WebAccessibility::ROLE_UNKNOWN;
}
}
uint32 ConvertState(const WebAccessibilityObject& o) {
uint32 state = 0;
if (o.isChecked())
state |= (1 << WebAccessibility::STATE_CHECKED);
if (o.isCollapsed())
state |= (1 << WebAccessibility::STATE_COLLAPSED);
if (o.canSetFocusAttribute())
state |= (1 << WebAccessibility::STATE_FOCUSABLE);
if (o.isFocused())
state |= (1 << WebAccessibility::STATE_FOCUSED);
if (o.roleValue() == WebKit::WebAccessibilityRolePopUpButton ||
o.ariaHasPopup()) {
state |= (1 << WebAccessibility::STATE_HASPOPUP);
if (!o.isCollapsed())
state |= (1 << WebAccessibility::STATE_EXPANDED);
}
if (o.isHovered())
state |= (1 << WebAccessibility::STATE_HOTTRACKED);
if (o.isIndeterminate())
state |= (1 << WebAccessibility::STATE_INDETERMINATE);
if (!o.isVisible())
state |= (1 << WebAccessibility::STATE_INVISIBLE);
if (o.isLinked())
state |= (1 << WebAccessibility::STATE_LINKED);
if (o.isMultiSelectable())
state |= (1 << WebAccessibility::STATE_MULTISELECTABLE);
if (o.isOffScreen())
state |= (1 << WebAccessibility::STATE_OFFSCREEN);
if (o.isPressed())
state |= (1 << WebAccessibility::STATE_PRESSED);
if (o.isPasswordField())
state |= (1 << WebAccessibility::STATE_PROTECTED);
if (o.isReadOnly())
state |= (1 << WebAccessibility::STATE_READONLY);
if (o.isRequired())
state |= (1 << WebAccessibility::STATE_REQUIRED);
if (o.canSetSelectedAttribute())
state |= (1 << WebAccessibility::STATE_SELECTABLE);
if (o.isSelected())
state |= (1 << WebAccessibility::STATE_SELECTED);
if (o.isVisited())
state |= (1 << WebAccessibility::STATE_TRAVERSED);
if (!o.isEnabled())
state |= (1 << WebAccessibility::STATE_UNAVAILABLE);
if (o.isVertical())
state |= (1 << WebAccessibility::STATE_VERTICAL);
if (o.isVisited())
state |= (1 << WebAccessibility::STATE_VISITED);
return state;
}
WebAccessibility::WebAccessibility()
: id(-1),
role(ROLE_UNKNOWN),
state(-1) {
}
WebAccessibility::WebAccessibility(const WebKit::WebAccessibilityObject& src,
bool include_children) {
Init(src, include_children);
}
WebAccessibility::~WebAccessibility() {
}
#ifndef NDEBUG
std::string WebAccessibility::DebugString(bool recursive) const {
std::string result;
static int indent = 0;
result += "\n";
for (int i = 0; i < indent; ++i)
result += " ";
result += "id=" + IntToString(id);
switch (role) {
case ROLE_ALERT: result += " ALERT"; break;
case ROLE_ALERT_DIALOG: result += " ALERT_DIALOG"; break;
case ROLE_ANNOTATION: result += " ANNOTATION"; break;
case ROLE_APPLICATION: result += " APPLICATION"; break;
case ROLE_ARTICLE: result += " ARTICLE"; break;
case ROLE_BROWSER: result += " BROWSER"; break;
case ROLE_BUSY_INDICATOR: result += " BUSY_INDICATOR"; break;
case ROLE_BUTTON: result += " BUTTON"; break;
case ROLE_CELL: result += " CELL"; break;
case ROLE_CHECKBOX: result += " CHECKBOX"; break;
case ROLE_COLOR_WELL: result += " COLOR_WELL"; break;
case ROLE_COLUMN: result += " COLUMN"; break;
case ROLE_COLUMN_HEADER: result += " COLUMN_HEADER"; break;
case ROLE_COMBO_BOX: result += " COMBO_BOX"; break;
case ROLE_DEFINITION_LIST_DEFINITION: result += " DL_DEFINITION"; break;
case ROLE_DEFINITION_LIST_TERM: result += " DL_TERM"; break;
case ROLE_DIALOG: result += " DIALOG"; break;
case ROLE_DIRECTORY: result += " DIRECTORY"; break;
case ROLE_DISCLOSURE_TRIANGLE: result += " DISCLOSURE_TRIANGLE"; break;
case ROLE_DOCUMENT: result += " DOCUMENT"; break;
case ROLE_DRAWER: result += " DRAWER"; break;
case ROLE_EDITABLE_TEXT: result += " EDITABLE_TEXT"; break;
case ROLE_GRID: result += " GRID"; break;
case ROLE_GROUP: result += " GROUP"; break;
case ROLE_GROW_AREA: result += " GROW_AREA"; break;
case ROLE_HEADING: result += " HEADING"; break;
case ROLE_HELP_TAG: result += " HELP_TAG"; break;
case ROLE_IGNORED: result += " IGNORED"; break;
case ROLE_IMAGE: result += " IMAGE"; break;
case ROLE_IMAGE_MAP: result += " IMAGE_MAP"; break;
case ROLE_IMAGE_MAP_LINK: result += " IMAGE_MAP_LINK"; break;
case ROLE_INCREMENTOR: result += " INCREMENTOR"; break;
case ROLE_LANDMARK_APPLICATION: result += " L_APPLICATION"; break;
case ROLE_LANDMARK_BANNER: result += " L_BANNER"; break;
case ROLE_LANDMARK_COMPLEMENTARY: result += " L_COMPLEMENTARY"; break;
case ROLE_LANDMARK_CONTENTINFO: result += " L_CONTENTINFO"; break;
case ROLE_LANDMARK_MAIN: result += " L_MAIN"; break;
case ROLE_LANDMARK_NAVIGATION: result += " L_NAVIGATION"; break;
case ROLE_LANDMARK_SEARCH: result += " L_SEARCH"; break;
case ROLE_LINK: result += " LINK"; break;
case ROLE_LIST: result += " LIST"; break;
case ROLE_LISTBOX: result += " LISTBOX"; break;
case ROLE_LISTBOX_OPTION: result += " LISTBOX_OPTION"; break;
case ROLE_LIST_ITEM: result += " LIST_ITEM"; break;
case ROLE_LIST_MARKER: result += " LIST_MARKER"; break;
case ROLE_LOG: result += " LOG"; break;
case ROLE_MARQUEE: result += " MARQUEE"; break;
case ROLE_MATH: result += " MATH"; break;
case ROLE_MATTE: result += " MATTE"; break;
case ROLE_MENU: result += " MENU"; break;
case ROLE_MENU_BAR: result += " MENU_BAR"; break;
case ROLE_MENU_BUTTON: result += " MENU_BUTTON"; break;
case ROLE_MENU_ITEM: result += " MENU_ITEM"; break;
case ROLE_MENU_LIST_OPTION: result += " MENU_LIST_OPTION"; break;
case ROLE_MENU_LIST_POPUP: result += " MENU_LIST_POPUP"; break;
case ROLE_NOTE: result += " NOTE"; break;
case ROLE_OUTLINE: result += " OUTLINE"; break;
case ROLE_POPUP_BUTTON: result += " POPUP_BUTTON"; break;
case ROLE_PROGRESS_INDICATOR: result += " PROGRESS_INDICATOR"; break;
case ROLE_RADIO_BUTTON: result += " RADIO_BUTTON"; break;
case ROLE_RADIO_GROUP: result += " RADIO_GROUP"; break;
case ROLE_REGION: result += " REGION"; break;
case ROLE_ROOT_WEB_AREA: result += " ROOT_WEB_AREA"; break;
case ROLE_ROW: result += " ROW"; break;
case ROLE_ROW_HEADER: result += " ROW_HEADER"; break;
case ROLE_RULER: result += " RULER"; break;
case ROLE_RULER_MARKER: result += " RULER_MARKER"; break;
case ROLE_SCROLLAREA: result += " SCROLLAREA"; break;
case ROLE_SCROLLBAR: result += " SCROLLBAR"; break;
case ROLE_SHEET: result += " SHEET"; break;
case ROLE_SLIDER: result += " SLIDER"; break;
case ROLE_SLIDER_THUMB: result += " SLIDER_THUMB"; break;
case ROLE_SPLITTER: result += " SPLITTER"; break;
case ROLE_SPLIT_GROUP: result += " SPLIT_GROUP"; break;
case ROLE_STATIC_TEXT: result += " STATIC_TEXT"; break;
case ROLE_STATUS: result += " STATUS"; break;
case ROLE_SYSTEM_WIDE: result += " SYSTEM_WIDE"; break;
case ROLE_TAB: result += " TAB"; break;
case ROLE_TABLE: result += " TABLE"; break;
case ROLE_TABLE_HEADER_CONTAINER: result += " TABLE_HDR_CONTAINER"; break;
case ROLE_TAB_GROUP_UNUSED: result += " TAB_GROUP_UNUSED"; break;
case ROLE_TAB_LIST: result += " TAB_LIST"; break;
case ROLE_TAB_PANEL: result += " TAB_PANEL"; break;
case ROLE_TEXTAREA: result += " TEXTAREA"; break;
case ROLE_TEXT_FIELD: result += " TEXT_FIELD"; break;
case ROLE_TIMER: result += " TIMER"; break;
case ROLE_TOOLBAR: result += " TOOLBAR"; break;
case ROLE_TOOLTIP: result += " TOOLTIP"; break;
case ROLE_TREE: result += " TREE"; break;
case ROLE_TREE_GRID: result += " TREE_GRID"; break;
case ROLE_TREE_ITEM: result += " TREE_ITEM"; break;
case ROLE_UNKNOWN: result += " UNKNOWN"; break;
case ROLE_VALUE_INDICATOR: result += " VALUE_INDICATOR"; break;
case ROLE_WEBCORE_LINK: result += " WEBCORE_LINK"; break;
case ROLE_WEB_AREA: result += " WEB_AREA"; break;
case ROLE_WINDOW: result += " WINDOW"; break;
default:
assert(false);
}
if (state & (1 << STATE_BUSY))
result += " BUSY";
if (state & (1 << STATE_CHECKED))
result += " CHECKED";
if (state & (1 << STATE_COLLAPSED))
result += " COLLAPSED";
if (state & (1 << STATE_EXPANDED))
result += " EXPANDED";
if (state & (1 << STATE_FOCUSABLE))
result += " FOCUSABLE";
if (state & (1 << STATE_FOCUSED))
result += " FOCUSED";
if (state & (1 << STATE_HASPOPUP))
result += " HASPOPUP";
if (state & (1 << STATE_HOTTRACKED))
result += " HOTTRACKED";
if (state & (1 << STATE_INDETERMINATE))
result += " INDETERMINATE";
if (state & (1 << STATE_INVISIBLE))
result += " INVISIBLE";
if (state & (1 << STATE_LINKED))
result += " LINKED";
if (state & (1 << STATE_MULTISELECTABLE))
result += " MULTISELECTABLE";
if (state & (1 << STATE_OFFSCREEN))
result += " OFFSCREEN";
if (state & (1 << STATE_PRESSED))
result += " PRESSED";
if (state & (1 << STATE_PROTECTED))
result += " PROTECTED";
if (state & (1 << STATE_READONLY))
result += " READONLY";
if (state & (1 << STATE_REQUIRED))
result += " REQUIRED";
if (state & (1 << STATE_SELECTABLE))
result += " SELECTABLE";
if (state & (1 << STATE_SELECTED))
result += " SELECTED";
if (state & (1 << STATE_TRAVERSED))
result += " TRAVERSED";
if (state & (1 << STATE_UNAVAILABLE))
result += " UNAVAILABLE";
if (state & (1 << STATE_VERTICAL))
result += " VERTICAL";
if (state & (1 << STATE_VISITED))
result += " VISITED";
std::string tmp = UTF16ToUTF8(name);
RemoveChars(tmp, "\n", &tmp);
if (!tmp.empty())
result += " name=" + tmp;
tmp = UTF16ToUTF8(value);
RemoveChars(tmp, "\n", &tmp);
if (!tmp.empty())
result += " value=" + tmp;
result += " (" + IntToString(location.x()) + ", " +
IntToString(location.y()) + ")-(" +
IntToString(location.width()) + ", " +
IntToString(location.height()) + ")";
for (std::map<IntAttribute, int32>::const_iterator iter =
int_attributes.begin();
iter != int_attributes.end();
++iter) {
std::string value = IntToString(iter->second);
switch (iter->first) {
case ATTR_SCROLL_X:
result += " scroll_x=" + value;
break;
case ATTR_SCROLL_X_MIN:
result += " scroll_x_min=" + value;
break;
case ATTR_SCROLL_X_MAX:
result += " scroll_x_max=" + value;
break;
case ATTR_SCROLL_Y:
result += " scroll_y=" + value;
break;
case ATTR_SCROLL_Y_MIN:
result += " scroll_y_min=" + value;
break;
case ATTR_SCROLL_Y_MAX:
result += " scroll_y_max=" + value;
break;
case ATTR_HIERARCHICAL_LEVEL:
result += " level=" + value;
break;
case ATTR_TEXT_SEL_START:
result += " sel_start=" + value;
break;
case ATTR_TEXT_SEL_END:
result += " sel_end=" + value;
break;
case ATTR_TABLE_ROW_COUNT:
result += " rows=" + value;
break;
case ATTR_TABLE_COLUMN_COUNT:
result += " cols=" + value;
break;
case ATTR_TABLE_CELL_COLUMN_INDEX:
result += " col=" + value;
break;
case ATTR_TABLE_CELL_ROW_INDEX:
result += " row=" + value;
break;
case ATTR_TABLE_CELL_COLUMN_SPAN:
result += " colspan=" + value;
break;
case ATTR_TABLE_CELL_ROW_SPAN:
result += " rowspan=" + value;
break;
case ATTR_TITLE_UI_ELEMENT:
result += " title_elem=" + value;
break;
}
}
for (std::map<StringAttribute, string16>::const_iterator iter =
string_attributes.begin();
iter != string_attributes.end();
++iter) {
std::string value = UTF16ToUTF8(iter->second);
switch (iter->first) {
case ATTR_DOC_URL:
result += " doc_url=" + value;
break;
case ATTR_DOC_TITLE:
result += " doc_title=" + value;
break;
case ATTR_DOC_MIMETYPE:
result += " doc_mimetype=" + value;
break;
case ATTR_DOC_DOCTYPE:
result += " doc_doctype=" + value;
break;
case ATTR_ACCESS_KEY:
result += " access_key=" + value;
break;
case ATTR_ACTION:
result += " action=" + value;
break;
case ATTR_DESCRIPTION:
result += " description=" + value;
break;
case ATTR_DISPLAY:
result += " display=" + value;
break;
case ATTR_HELP:
result += " help=" + value;
break;
case ATTR_HTML_TAG:
result += " html_tag=" + value;
break;
case ATTR_LIVE_RELEVANT:
result += " relevant=" + value;
break;
case ATTR_LIVE_STATUS:
result += " live=" + value;
break;
case ATTR_CONTAINER_LIVE_RELEVANT:
result += " container_relevant=" + value;
break;
case ATTR_CONTAINER_LIVE_STATUS:
result += " container_live=" + value;
break;
case ATTR_ROLE:
result += " role=" + value;
break;
case ATTR_SHORTCUT:
result += " shortcut=" + value;
break;
case ATTR_URL:
result += " url=" + value;
break;
}
}
for (std::map<FloatAttribute, float>::const_iterator iter =
float_attributes.begin();
iter != float_attributes.end();
++iter) {
std::string value = DoubleToString(iter->second);
switch (iter->first) {
case ATTR_DOC_LOADING_PROGRESS:
result += " doc_progress=" + value;
break;
case ATTR_VALUE_FOR_RANGE:
result += " value_for_range=" + value;
break;
case ATTR_MAX_VALUE_FOR_RANGE:
result += " max_value=" + value;
break;
case ATTR_MIN_VALUE_FOR_RANGE:
result += " min_value=" + value;
break;
}
}
for (std::map<BoolAttribute, bool>::const_iterator iter =
bool_attributes.begin();
iter != bool_attributes.end();
++iter) {
std::string value = iter->second ? "true" : "false";
switch (iter->first) {
case ATTR_DOC_LOADED:
result += " doc_loaded=" + value;
break;
case ATTR_BUTTON_MIXED:
result += " mixed=" + value;
break;
case ATTR_LIVE_ATOMIC:
result += " atomic=" + value;
break;
case ATTR_LIVE_BUSY:
result += " busy=" + value;
break;
case ATTR_CONTAINER_LIVE_ATOMIC:
result += " container_atomic=" + value;
break;
case ATTR_CONTAINER_LIVE_BUSY:
result += " container_busy=" + value;
break;
case ATTR_ARIA_READONLY:
result += " aria_readonly=" + value;
break;
case ATTR_CAN_SET_VALUE:
result += " can_set_value=" + value;
break;
}
}
if (!children.empty())
result += " children=" + IntToString(children.size());
if (!indirect_child_ids.empty())
result += " indirect_child_ids=" + IntVectorToString(indirect_child_ids);
if (!line_breaks.empty())
result += " line_breaks=" + IntVectorToString(line_breaks);
if (!cell_ids.empty())
result += " cell_ids=" + IntVectorToString(cell_ids);
if (recursive) {
result += "\n";
++indent;
for (size_t i = 0; i < children.size(); ++i)
result += children[i].DebugString(true);
--indent;
}
return result;
}
#endif // ifndef NDEBUG
void WebAccessibility::Init(const WebKit::WebAccessibilityObject& src,
bool include_children) {
name = src.title();
role = ConvertRole(src.roleValue());
state = ConvertState(src);
location = src.boundingBoxRect();
id = src.axID();
if (src.valueDescription().length())
value = src.valueDescription();
else
value = src.stringValue();
if (src.accessKey().length())
string_attributes[ATTR_ACCESS_KEY] = src.accessKey();
if (src.actionVerb().length())
string_attributes[ATTR_ACTION] = src.actionVerb();
if (src.isAriaReadOnly())
bool_attributes[ATTR_ARIA_READONLY] = true;
if (src.isButtonStateMixed())
bool_attributes[ATTR_BUTTON_MIXED] = true;
if (src.canSetValueAttribute())
bool_attributes[ATTR_CAN_SET_VALUE] = true;
if (src.accessibilityDescription().length())
string_attributes[ATTR_DESCRIPTION] = src.accessibilityDescription();
if (src.hasComputedStyle())
string_attributes[ATTR_DISPLAY] = src.computedStyleDisplay();
if (src.helpText().length())
string_attributes[ATTR_HELP] = src.helpText();
if (src.keyboardShortcut().length())
string_attributes[ATTR_SHORTCUT] = src.keyboardShortcut();
if (src.titleUIElement().isValid())
int_attributes[ATTR_TITLE_UI_ELEMENT] = src.titleUIElement().axID();
if (!src.url().isEmpty())
string_attributes[ATTR_URL] = src.url().spec().utf16();
if (role == ROLE_TREE_ITEM)
int_attributes[ATTR_HIERARCHICAL_LEVEL] = src.hierarchicalLevel();
if (role == ROLE_SLIDER)
include_children = false;
// Treat the active list box item as focused.
if (role == ROLE_LISTBOX_OPTION && src.isSelectedOptionActive())
state |= (1 << WebAccessibility::STATE_FOCUSED);
WebKit::WebNode node = src.node();
bool is_iframe = false;
if (!node.isNull() && node.isElementNode()) {
WebKit::WebElement element = node.to<WebKit::WebElement>();
is_iframe = (element.tagName() == ASCIIToUTF16("IFRAME"));
// TODO(ctguil): The tagName in WebKit is lower cased but
// HTMLElement::nodeName calls localNameUpper. Consider adding
// a WebElement method that returns the original lower cased tagName.
string_attributes[ATTR_HTML_TAG] =
StringToLowerASCII(string16(element.tagName()));
for (unsigned i = 0; i < element.attributeCount(); ++i) {
string16 name = StringToLowerASCII(string16(
element.attributeLocalName(i)));
string16 value = element.attributeValue(i);
html_attributes.push_back(std::pair<string16, string16>(name, value));
}
if (role == ROLE_EDITABLE_TEXT ||
role == ROLE_TEXTAREA ||
role == ROLE_TEXT_FIELD) {
// Jaws gets confused by children of text fields, so we ignore them.
include_children = false;
int_attributes[ATTR_TEXT_SEL_START] = src.selectionStart();
int_attributes[ATTR_TEXT_SEL_END] = src.selectionEnd();
WebKit::WebVector<int> src_line_breaks;
src.lineBreaks(src_line_breaks);
line_breaks.reserve(src_line_breaks.size());
for (size_t i = 0; i < src_line_breaks.size(); ++i)
line_breaks.push_back(src_line_breaks[i]);
}
// ARIA role.
if (element.hasAttribute("role")) {
string_attributes[ATTR_ROLE] = element.getAttribute("role");
}
// Live region attributes
if (element.hasAttribute("aria-atomic")) {
bool_attributes[ATTR_LIVE_ATOMIC] =
LowerCaseEqualsASCII(element.getAttribute("aria-atomic"), "true");
}
if (element.hasAttribute("aria-busy")) {
bool_attributes[ATTR_LIVE_BUSY] =
LowerCaseEqualsASCII(element.getAttribute("aria-busy"), "true");
}
if (element.hasAttribute("aria-live")) {
string_attributes[ATTR_LIVE_STATUS] = element.getAttribute("aria-live");
}
if (element.hasAttribute("aria-relevant")) {
string_attributes[ATTR_LIVE_RELEVANT] =
element.getAttribute("aria-relevant");
}
}
// Walk up the parent chain to set live region attributes of containers
WebKit::WebAccessibilityObject container_accessible = src;
while (!container_accessible.isNull()) {
WebKit::WebNode container_node = container_accessible.node();
if (!container_node.isNull() && container_node.isElementNode()) {
WebKit::WebElement container_elem =
container_node.to<WebKit::WebElement>();
if (container_elem.hasAttribute("aria-atomic") &&
bool_attributes.find(ATTR_CONTAINER_LIVE_ATOMIC) ==
bool_attributes.end()) {
bool_attributes[ATTR_CONTAINER_LIVE_ATOMIC] =
LowerCaseEqualsASCII(container_elem.getAttribute("aria-atomic"),
"true");
}
if (container_elem.hasAttribute("aria-busy") &&
bool_attributes.find(ATTR_CONTAINER_LIVE_BUSY) ==
bool_attributes.end()) {
bool_attributes[ATTR_CONTAINER_LIVE_BUSY] =
LowerCaseEqualsASCII(container_elem.getAttribute("aria-busy"),
"true");
}
if (container_elem.hasAttribute("aria-live") &&
string_attributes.find(ATTR_CONTAINER_LIVE_STATUS) ==
string_attributes.end()) {
string_attributes[ATTR_CONTAINER_LIVE_STATUS] =
container_elem.getAttribute("aria-live");
}
if (container_elem.hasAttribute("aria-relevant") &&
string_attributes.find(ATTR_CONTAINER_LIVE_RELEVANT) ==
string_attributes.end()) {
string_attributes[ATTR_CONTAINER_LIVE_RELEVANT] =
container_elem.getAttribute("aria-relevant");
}
}
container_accessible = container_accessible.parentObject();
}
if (role == WebAccessibility::ROLE_PROGRESS_INDICATOR ||
role == WebAccessibility::ROLE_SCROLLBAR ||
role == WebAccessibility::ROLE_SLIDER) {
float_attributes[ATTR_VALUE_FOR_RANGE] = src.valueForRange();
float_attributes[ATTR_MAX_VALUE_FOR_RANGE] = src.minValueForRange();
float_attributes[ATTR_MIN_VALUE_FOR_RANGE] = src.maxValueForRange();
}
if (role == WebAccessibility::ROLE_DOCUMENT ||
role == WebAccessibility::ROLE_WEB_AREA) {
const WebKit::WebDocument& document = src.document();
if (name.empty())
name = document.title();
string_attributes[ATTR_DOC_TITLE] = document.title();
string_attributes[ATTR_DOC_URL] = document.url().spec().utf16();
if (document.isXHTMLDocument())
string_attributes[ATTR_DOC_MIMETYPE] = WebKit::WebString("text/xhtml");
else
string_attributes[ATTR_DOC_MIMETYPE] = WebKit::WebString("text/html");
bool_attributes[ATTR_DOC_LOADED] = src.isLoaded();
float_attributes[ATTR_DOC_LOADING_PROGRESS] =
src.estimatedLoadingProgress();
const WebKit::WebDocumentType& doctype = document.doctype();
if (!doctype.isNull())
string_attributes[ATTR_DOC_DOCTYPE] = doctype.name();
const gfx::Size& scroll_offset = document.frame()->scrollOffset();
int_attributes[ATTR_SCROLL_X] = scroll_offset.width();
int_attributes[ATTR_SCROLL_Y] = scroll_offset.height();
const gfx::Size& min_offset = document.frame()->minimumScrollOffset();
int_attributes[ATTR_SCROLL_X_MIN] = min_offset.width();
int_attributes[ATTR_SCROLL_Y_MIN] = min_offset.height();
const gfx::Size& max_offset = document.frame()->maximumScrollOffset();
int_attributes[ATTR_SCROLL_X_MAX] = max_offset.width();
int_attributes[ATTR_SCROLL_Y_MAX] = max_offset.height();
}
if (role == WebAccessibility::ROLE_TABLE) {
int column_count = src.columnCount();
int row_count = src.rowCount();
if (column_count > 0 && row_count > 0) {
std::set<int> unique_cell_id_set;
int_attributes[ATTR_TABLE_COLUMN_COUNT] = column_count;
int_attributes[ATTR_TABLE_ROW_COUNT] = row_count;
for (int i = 0; i < column_count * row_count; ++i) {
WebAccessibilityObject cell = src.cellForColumnAndRow(
i % column_count, i / column_count);
int cell_id = -1;
if (!cell.isNull()) {
cell_id = cell.axID();
if (unique_cell_id_set.find(cell_id) == unique_cell_id_set.end()) {
unique_cell_id_set.insert(cell_id);
unique_cell_ids.push_back(cell_id);
}
}
cell_ids.push_back(cell_id);
}
}
}
if (role == WebAccessibility::ROLE_CELL ||
role == WebAccessibility::ROLE_ROW_HEADER ||
role == WebAccessibility::ROLE_COLUMN_HEADER) {
int_attributes[ATTR_TABLE_CELL_COLUMN_INDEX] = src.cellColumnIndex();
int_attributes[ATTR_TABLE_CELL_COLUMN_SPAN] = src.cellColumnSpan();
int_attributes[ATTR_TABLE_CELL_ROW_INDEX] = src.cellRowIndex();
int_attributes[ATTR_TABLE_CELL_ROW_SPAN] = src.cellRowSpan();
}
if (include_children) {
// Recursively create children.
int child_count = src.childCount();
std::set<int32> child_ids;
for (int i = 0; i < child_count; ++i) {
WebAccessibilityObject child = src.childAt(i);
int32 child_id = child.axID();
// The child may be invalid due to issues in webkit accessibility code.
// Don't add children that are invalid thus preventing a crash.
// https://bugs.webkit.org/show_bug.cgi?id=44149
// TODO(ctguil): We may want to remove this check as webkit stabilizes.
if (!child.isValid())
continue;
// Children may duplicated in the webkit accessibility tree. Only add a
// child once for the web accessibility tree.
// https://bugs.webkit.org/show_bug.cgi?id=58930
if (child_ids.find(child_id) != child_ids.end())
continue;
child_ids.insert(child_id);
// Some nodes appear in the tree in more than one place: for example,
// a cell in a table appears as a child of both a row and a column.
// Only recursively add child nodes that have this node as its
// unignored parent. For child nodes that are actually parented to
// somethinng else, store only the ID.
//
// As an exception, also add children of an iframe element.
// https://bugs.webkit.org/show_bug.cgi?id=57066
if (is_iframe || IsParentUnignoredOf(src, child)) {
children.push_back(WebAccessibility(child, include_children));
} else {
indirect_child_ids.push_back(child_id);
}
}
}
}
bool WebAccessibility::IsParentUnignoredOf(
const WebKit::WebAccessibilityObject& ancestor,
const WebKit::WebAccessibilityObject& child) {
WebKit::WebAccessibilityObject parent = child.parentObject();
while (!parent.isNull() && parent.accessibilityIsIgnored())
parent = parent.parentObject();
return parent.equals(ancestor);
}
} // namespace webkit_glue