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Unified Diff: content/browser/accessibility/browser_accessibility_win.cc

Issue 2864953002: Split out the MSCOM pieces of BrowserAccessibilityWin into a seperate class. (Closed)
Patch Set: follow up comment Created 3 years, 7 months ago
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Index: content/browser/accessibility/browser_accessibility_win.cc
diff --git a/content/browser/accessibility/browser_accessibility_win.cc b/content/browser/accessibility/browser_accessibility_win.cc
index 22410f8cb62a26edaf79b3c1d170d80200b50aa8..0fe7041a46e7e8c6f55d62f46a395233b2ec9fa1 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -4,5640 +4,68 @@
#include "content/browser/accessibility/browser_accessibility_win.h"
-#include <UIAutomationClient.h>
-#include <UIAutomationCoreApi.h>
-
-#include <algorithm>
-#include <iterator>
-#include <utility>
-
-#include "base/metrics/histogram_macros.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/win/enum_variant.h"
-#include "base/win/scoped_comptr.h"
-#include "base/win/windows_version.h"
-#include "content/browser/accessibility/browser_accessibility_event_win.h"
-#include "content/browser/accessibility/browser_accessibility_manager_win.h"
-#include "content/browser/accessibility/browser_accessibility_state_impl.h"
-#include "content/common/accessibility_messages.h"
-#include "content/common/accessibility_mode.h"
-#include "content/public/common/content_client.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/accessibility/ax_text_utils.h"
-#include "ui/base/win/accessibility_ids_win.h"
-#include "ui/base/win/accessibility_misc_utils.h"
#include "ui/base/win/atl_module.h"
-namespace {
-
-// IMPORTANT!
-// These values are written to logs. Do not renumber or delete
-// existing items; add new entries to the end of the list.
-enum {
- UMA_API_ACC_DO_DEFAULT_ACTION = 0,
- UMA_API_ACC_HIT_TEST = 1,
- UMA_API_ACC_LOCATION = 2,
- UMA_API_ACC_NAVIGATE = 3,
- UMA_API_ACC_SELECT = 4,
- UMA_API_ADD_SELECTION = 5,
- UMA_API_CONVERT_RETURNED_ELEMENT = 6,
- UMA_API_DO_ACTION = 7,
- UMA_API_GET_ACCESSIBLE_AT = 8,
- UMA_API_GET_ACC_CHILD = 9,
- UMA_API_GET_ACC_CHILD_COUNT = 10,
- UMA_API_GET_ACC_DEFAULT_ACTION = 11,
- UMA_API_GET_ACC_DESCRIPTION = 12,
- UMA_API_GET_ACC_FOCUS = 13,
- UMA_API_GET_ACC_HELP = 14,
- UMA_API_GET_ACC_HELP_TOPIC = 15,
- UMA_API_GET_ACC_KEYBOARD_SHORTCUT = 16,
- UMA_API_GET_ACC_NAME = 17,
- UMA_API_GET_ACC_PARENT = 18,
- UMA_API_GET_ACC_ROLE = 19,
- UMA_API_GET_ACC_SELECTION = 20,
- UMA_API_GET_ACC_STATE = 21,
- UMA_API_GET_ACC_VALUE = 22,
- UMA_API_GET_ANCHOR = 23,
- UMA_API_GET_ANCHOR_TARGET = 24,
- UMA_API_GET_APP_NAME = 25,
- UMA_API_GET_APP_VERSION = 26,
- UMA_API_GET_ATTRIBUTES_FOR_NAMES = 27,
- UMA_API_GET_CAPTION = 28,
- UMA_API_GET_CARET_OFFSET = 29,
- UMA_API_GET_CELL_AT = 30,
- UMA_API_GET_CHARACTER_EXTENTS = 31,
- UMA_API_GET_CHILD_AT = 32,
- UMA_API_GET_CHILD_INDEX = 33,
- UMA_API_GET_CLIPPED_SUBSTRING_BOUNDS = 34,
- UMA_API_GET_COLUMN_DESCRIPTION = 35,
- UMA_API_GET_COLUMN_EXTENT = 36,
- UMA_API_GET_COLUMN_EXTENT_AT = 37,
- UMA_API_GET_COLUMN_HEADER = 38,
- UMA_API_GET_COLUMN_HEADER_CELLS = 39,
- UMA_API_GET_COLUMN_INDEX = 40,
- UMA_API_GET_COMPUTED_STYLE = 41,
- UMA_API_GET_COMPUTED_STYLE_FOR_PROPERTIES = 42,
- UMA_API_GET_CURRENT_VALUE = 43,
- UMA_API_GET_DESCRIPTION = 44,
- UMA_API_GET_DOC_TYPE = 45,
- UMA_API_GET_DOM_TEXT = 46,
- UMA_API_GET_END_INDEX = 47,
- UMA_API_GET_EXTENDED_ROLE = 48,
- UMA_API_GET_EXTENDED_STATES = 49,
- UMA_API_GET_FIRST_CHILD = 50,
- UMA_API_GET_FONT_FAMILY = 51,
- UMA_API_GET_GROUP_POSITION = 52,
- UMA_API_GET_HOST_RAW_ELEMENT_PROVIDER = 53,
- UMA_API_GET_HYPERLINK = 54,
- UMA_API_GET_HYPERLINK_INDEX = 55,
- UMA_API_GET_IACCESSIBLE_PAIR = 56,
- UMA_API_GET_IMAGE_POSITION = 57,
- UMA_API_GET_IMAGE_SIZE = 58,
- UMA_API_GET_INDEX_IN_PARENT = 59,
- UMA_API_GET_INNER_HTML = 60,
- UMA_API_GET_IS_COLUMN_SELECTED = 61,
- UMA_API_GET_IS_ROW_SELECTED = 62,
- UMA_API_GET_IS_SELECTED = 63,
- UMA_API_GET_KEY_BINDING = 64,
- UMA_API_GET_LANGUAGE = 65,
- UMA_API_GET_LAST_CHILD = 66,
- UMA_API_GET_LOCALE = 67,
- UMA_API_GET_LOCALIZED_EXTENDED_ROLE = 68,
- UMA_API_GET_LOCALIZED_EXTENDED_STATES = 69,
- UMA_API_GET_LOCALIZED_NAME = 70,
- UMA_API_GET_LOCAL_INTERFACE = 71,
- UMA_API_GET_MAXIMUM_VALUE = 72,
- UMA_API_GET_MIME_TYPE = 73,
- UMA_API_GET_MINIMUM_VALUE = 74,
- UMA_API_GET_NAME = 75,
- UMA_API_GET_NAMESPACE_URI_FOR_ID = 76,
- UMA_API_GET_NEW_TEXT = 77,
- UMA_API_GET_NEXT_SIBLING = 78,
- UMA_API_GET_NODE_INFO = 79,
- UMA_API_GET_N_CHARACTERS = 80,
- UMA_API_GET_N_COLUMNS = 81,
- UMA_API_GET_N_EXTENDED_STATES = 82,
- UMA_API_GET_N_HYPERLINKS = 83,
- UMA_API_GET_N_RELATIONS = 84,
- UMA_API_GET_N_ROWS = 85,
- UMA_API_GET_N_SELECTED_CELLS = 86,
- UMA_API_GET_N_SELECTED_CHILDREN = 87,
- UMA_API_GET_N_SELECTED_COLUMNS = 88,
- UMA_API_GET_N_SELECTED_ROWS = 89,
- UMA_API_GET_N_SELECTIONS = 90,
- UMA_API_GET_OBJECT_FOR_CHILD = 91,
- UMA_API_GET_OFFSET_AT_POINT = 92,
- UMA_API_GET_OLD_TEXT = 93,
- UMA_API_GET_PARENT_NODE = 94,
- UMA_API_GET_PATTERN_PROVIDER = 95,
- UMA_API_GET_PREVIOUS_SIBLING = 96,
- UMA_API_GET_PROPERTY_VALUE = 97,
- UMA_API_GET_PROVIDER_OPTIONS = 98,
- UMA_API_GET_RELATION = 99,
- UMA_API_GET_RELATIONS = 100,
- UMA_API_GET_ROW_COLUMN_EXTENTS = 101,
- UMA_API_GET_ROW_COLUMN_EXTENTS_AT_INDEX = 102,
- UMA_API_GET_ROW_DESCRIPTION = 103,
- UMA_API_GET_ROW_EXTENT = 104,
- UMA_API_GET_ROW_EXTENT_AT = 105,
- UMA_API_GET_ROW_HEADER = 106,
- UMA_API_GET_ROW_HEADER_CELLS = 107,
- UMA_API_GET_ROW_INDEX = 108,
- UMA_API_GET_RUNTIME_ID = 109,
- UMA_API_GET_SELECTED_CELLS = 110,
- UMA_API_GET_SELECTED_CHILDREN = 111,
- UMA_API_GET_SELECTED_COLUMNS = 112,
- UMA_API_GET_SELECTED_ROWS = 113,
- UMA_API_GET_SELECTION = 114,
- UMA_API_GET_START_INDEX = 115,
- UMA_API_GET_STATES = 116,
- UMA_API_GET_SUMMARY = 117,
- UMA_API_GET_TABLE = 118,
- UMA_API_GET_TEXT = 119,
- UMA_API_GET_TEXT_AFTER_OFFSET = 120,
- UMA_API_GET_TEXT_AT_OFFSET = 121,
- UMA_API_GET_TEXT_BEFORE_OFFSET = 122,
- UMA_API_GET_TITLE = 123,
- UMA_API_GET_TOOLKIT_NAME = 124,
- UMA_API_GET_TOOLKIT_VERSION = 125,
- UMA_API_GET_UNCLIPPED_SUBSTRING_BOUNDS = 126,
- UMA_API_GET_UNIQUE_ID = 127,
- UMA_API_GET_URL = 128,
- UMA_API_GET_VALID = 129,
- UMA_API_GET_WINDOW_HANDLE = 130,
- UMA_API_IA2_GET_ATTRIBUTES = 131,
- UMA_API_IA2_SCROLL_TO = 132,
- UMA_API_IAACTION_GET_DESCRIPTION = 133,
- UMA_API_IATEXT_GET_ATTRIBUTES = 134,
- UMA_API_ISIMPLEDOMNODE_GET_ATTRIBUTES = 135,
- UMA_API_ISIMPLEDOMNODE_SCROLL_TO = 136,
- UMA_API_N_ACTIONS = 137,
- UMA_API_PUT_ALTERNATE_VIEW_MEDIA_TYPES = 138,
- UMA_API_QUERY_SERVICE = 139,
- UMA_API_REMOVE_SELECTION = 140,
- UMA_API_ROLE = 141,
- UMA_API_SCROLL_SUBSTRING_TO = 142,
- UMA_API_SCROLL_SUBSTRING_TO_POINT = 143,
- UMA_API_SCROLL_TO_POINT = 144,
- UMA_API_SCROLL_TO_SUBSTRING = 145,
- UMA_API_SELECT_COLUMN = 146,
- UMA_API_SELECT_ROW = 147,
- UMA_API_SET_CARET_OFFSET = 148,
- UMA_API_SET_CURRENT_VALUE = 149,
- UMA_API_SET_SELECTION = 150,
- UMA_API_TABLE2_GET_SELECTED_COLUMNS = 151,
- UMA_API_TABLE2_GET_SELECTED_ROWS = 152,
- UMA_API_TABLECELL_GET_COLUMN_INDEX = 153,
- UMA_API_TABLECELL_GET_IS_SELECTED = 154,
- UMA_API_TABLECELL_GET_ROW_INDEX = 155,
- UMA_API_UNSELECT_COLUMN = 156,
- UMA_API_UNSELECT_ROW = 157,
-
- // This must always be the last enum. It's okay for its value to
- // increase, but none of the other enum values may change.
- UMA_API_MAX
-};
-
-#define WIN_ACCESSIBILITY_API_HISTOGRAM(enum_value) \
- UMA_HISTOGRAM_ENUMERATION("Accessibility.WinAPIs", enum_value, UMA_API_MAX)
-
-// There is no easy way to decouple |kScreenReader| and |kHTML| accessibility
-// modes when Windows screen readers are used. For example, certain roles use
-// the HTML tag name. Input fields require their type attribute to be exposed.
-const uint32_t kScreenReaderAndHTMLAccessibilityModes =
- content::AccessibilityMode::kScreenReader |
- content::AccessibilityMode::kHTML;
-
-const WCHAR *const IA2_RELATION_DETAILS = L"details";
-const WCHAR *const IA2_RELATION_DETAILS_FOR = L"detailsFor";
-const WCHAR *const IA2_RELATION_ERROR_MESSAGE = L"errorMessage";
-
-} // namespace
-
namespace content {
-// These nonstandard GUIDs are taken directly from the Mozilla sources
-// (accessible/src/msaa/nsAccessNodeWrap.cpp); some documentation is here:
-// http://developer.mozilla.org/en/Accessibility/AT-APIs/ImplementationFeatures/MSAA
-const GUID GUID_ISimpleDOM = {0x0c539790,
- 0x12e4,
- 0x11cf,
- {0xb6, 0x61, 0x00, 0xaa, 0x00, 0x4c, 0xd6, 0xd8}};
-const GUID GUID_IAccessibleContentDocument = {
- 0xa5d8e1f3,
- 0x3571,
- 0x4d8f,
- {0x95, 0x21, 0x07, 0xed, 0x28, 0xfb, 0x07, 0x2e}};
-
-const base::char16 BrowserAccessibilityWin::kEmbeddedCharacter = L'\xfffc';
-
-void AddAccessibilityModeFlags(AccessibilityMode mode_flags) {
- BrowserAccessibilityStateImpl::GetInstance()->AddAccessibilityModeFlags(
- mode_flags);
-}
-
-//
-// BrowserAccessibilityRelation
-//
-// A simple implementation of IAccessibleRelation, used to represent
-// a relationship between two accessible nodes in the tree.
-//
-
-class BrowserAccessibilityRelation
- : public CComObjectRootEx<CComMultiThreadModel>,
- public IAccessibleRelation {
- BEGIN_COM_MAP(BrowserAccessibilityRelation)
- COM_INTERFACE_ENTRY(IAccessibleRelation)
- END_COM_MAP()
-
- CONTENT_EXPORT BrowserAccessibilityRelation() {}
- CONTENT_EXPORT virtual ~BrowserAccessibilityRelation() {}
-
- CONTENT_EXPORT void Initialize(BrowserAccessibilityWin* owner,
- const base::string16& type);
- CONTENT_EXPORT void AddTarget(int target_id);
- CONTENT_EXPORT void RemoveTarget(int target_id);
-
- // Accessors.
- const base::string16& get_type() const { return type_; }
- const std::vector<int>& get_target_ids() const { return target_ids_; }
-
- // IAccessibleRelation methods.
- CONTENT_EXPORT STDMETHODIMP get_relationType(BSTR* relation_type) override;
- CONTENT_EXPORT STDMETHODIMP get_nTargets(long* n_targets) override;
- CONTENT_EXPORT STDMETHODIMP
- get_target(long target_index, IUnknown** target) override;
- CONTENT_EXPORT STDMETHODIMP
- get_targets(long max_targets, IUnknown** targets, long* n_targets) override;
-
- // IAccessibleRelation methods not implemented.
- CONTENT_EXPORT STDMETHODIMP
- get_localizedRelationType(BSTR* relation_type) override {
- return E_NOTIMPL;
- }
-
- private:
- base::string16 type_;
- base::win::ScopedComPtr<BrowserAccessibilityWin> owner_;
- std::vector<int> target_ids_;
-};
-
-void BrowserAccessibilityRelation::Initialize(BrowserAccessibilityWin* owner,
- const base::string16& type) {
- owner_ = owner;
- type_ = type;
-}
-
-void BrowserAccessibilityRelation::AddTarget(int target_id) {
- target_ids_.push_back(target_id);
-}
-
-void BrowserAccessibilityRelation::RemoveTarget(int target_id) {
- target_ids_.erase(
- std::remove(target_ids_.begin(), target_ids_.end(), target_id),
- target_ids_.end());
-}
-
-STDMETHODIMP BrowserAccessibilityRelation::get_relationType(
- BSTR* relation_type) {
- if (!relation_type)
- return E_INVALIDARG;
-
- if (!owner_->instance_active())
- return E_FAIL;
-
- *relation_type = SysAllocString(type_.c_str());
- DCHECK(*relation_type);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityRelation::get_nTargets(long* n_targets) {
- if (!n_targets)
- return E_INVALIDARG;
-
- if (!owner_->instance_active())
- return E_FAIL;
-
- *n_targets = static_cast<long>(target_ids_.size());
-
- for (long i = *n_targets - 1; i >= 0; --i) {
- BrowserAccessibilityWin* result = owner_->GetFromID(target_ids_[i]);
- if (!result || !result->instance_active()) {
- *n_targets = 0;
- break;
- }
- }
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityRelation::get_target(long target_index,
- IUnknown** target) {
- if (!target)
- return E_INVALIDARG;
-
- if (!owner_->instance_active())
- return E_FAIL;
-
- if (target_index < 0 ||
- target_index >= static_cast<long>(target_ids_.size())) {
- return E_INVALIDARG;
- }
-
- BrowserAccessibility* result = owner_->GetFromID(target_ids_[target_index]);
- if (!result || !result->instance_active())
- return E_FAIL;
-
- *target = static_cast<IAccessible*>(
- ToBrowserAccessibilityWin(result)->NewReference());
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityRelation::get_targets(long max_targets,
- IUnknown** targets,
- long* n_targets) {
- if (!targets || !n_targets)
- return E_INVALIDARG;
-
- if (!owner_->instance_active())
- return E_FAIL;
-
- long count = static_cast<long>(target_ids_.size());
- if (count > max_targets)
- count = max_targets;
-
- *n_targets = count;
- if (count == 0)
- return S_FALSE;
-
- for (long i = 0; i < count; ++i) {
- HRESULT result = get_target(i, &targets[i]);
- if (result != S_OK)
- return result;
- }
-
- return S_OK;
-}
-
-//
-// BrowserAccessibilityWin::WinAttributes
-//
-
-BrowserAccessibilityWin::WinAttributes::WinAttributes()
- : ia_role(0),
- ia_state(0),
- ia2_role(0),
- ia2_state(0) {
-}
-
-BrowserAccessibilityWin::WinAttributes::~WinAttributes() {
-}
-
-//
-// BrowserAccessibilityWin
-//
-
// static
BrowserAccessibility* BrowserAccessibility::Create() {
- ui::win::CreateATLModuleIfNeeded();
- CComObject<BrowserAccessibilityWin>* instance;
- HRESULT hr = CComObject<BrowserAccessibilityWin>::CreateInstance(&instance);
- DCHECK(SUCCEEDED(hr));
- return instance->NewReference();
-}
-
-BrowserAccessibilityWin::BrowserAccessibilityWin()
- : win_attributes_(new WinAttributes()),
- previous_scroll_x_(0),
- previous_scroll_y_(0) {
-}
-
-BrowserAccessibilityWin::~BrowserAccessibilityWin() {
- for (BrowserAccessibilityRelation* relation : relations_)
- relation->Release();
-}
-
-//
-// IAccessible methods.
-//
-// Conventions:
-// * Always test for instance_active() first and return E_FAIL if it's false.
-// * Always check for invalid arguments first, even if they're unused.
-// * Return S_FALSE if the only output is a string argument and it's empty.
-//
-
-HRESULT BrowserAccessibilityWin::accDoDefaultAction(VARIANT var_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_DO_DEFAULT_ACTION);
- if (!instance_active())
- return E_FAIL;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- // Return an error if it's not clickable.
- if (!target->HasIntAttribute(ui::AX_ATTR_ACTION))
- return DISP_E_MEMBERNOTFOUND;
-
- manager_->DoDefaultAction(*target);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::accHitTest(LONG x_left,
- LONG y_top,
- VARIANT* child) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_HIT_TEST);
- if (!instance_active())
- return E_FAIL;
-
- if (!child)
- return E_INVALIDARG;
-
- gfx::Point point(x_left, y_top);
- if (!GetScreenBoundsRect().Contains(point)) {
- // Return S_FALSE and VT_EMPTY when outside the object's boundaries.
- child->vt = VT_EMPTY;
- return S_FALSE;
- }
-
- BrowserAccessibility* result = manager_->CachingAsyncHitTest(point);
- if (result == this) {
- // Point is within this object.
- child->vt = VT_I4;
- child->lVal = CHILDID_SELF;
- } else {
- child->vt = VT_DISPATCH;
- child->pdispVal = ToBrowserAccessibilityWin(result)->NewReference();
- }
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::accLocation(LONG* x_left,
- LONG* y_top,
- LONG* width,
- LONG* height,
- VARIANT var_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_LOCATION);
- if (!instance_active())
- return E_FAIL;
-
- return GetPlatformNodeWin()->accLocation(x_left, y_top, width, height,
- var_id);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::accNavigate(LONG nav_dir,
- VARIANT start,
- VARIANT* end) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_NAVIGATE);
-
- // Forward all directions but NAVDIR_ to the platform node implementation.
- if (nav_dir != NAVDIR_DOWN && nav_dir != NAVDIR_UP &&
- nav_dir != NAVDIR_LEFT && nav_dir != NAVDIR_RIGHT) {
- return GetPlatformNodeWin()->accNavigate(nav_dir, start, end);
- }
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(start);
- if (!target)
- return E_INVALIDARG;
-
- BrowserAccessibility* result = nullptr;
- switch (nav_dir) {
- case NAVDIR_DOWN:
- result = target->GetTableCell(GetTableRow() + GetTableRowSpan(),
- GetTableColumn());
- break;
- case NAVDIR_UP:
- result = target->GetTableCell(GetTableRow() - 1, GetTableColumn());
- break;
- case NAVDIR_LEFT:
- result = target->GetTableCell(GetTableRow(), GetTableColumn() - 1);
- break;
- case NAVDIR_RIGHT:
- result = target->GetTableCell(GetTableRow(),
- GetTableColumn() + GetTableColumnSpan());
- break;
- }
-
- if (!result) {
- end->vt = VT_EMPTY;
- return S_FALSE;
- }
-
- end->vt = VT_DISPATCH;
- end->pdispVal = ToBrowserAccessibilityWin(result)->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accChild(VARIANT var_child,
- IDispatch** disp_child) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_CHILD);
- if (!instance_active())
- return E_FAIL;
-
- if (!disp_child)
- return E_INVALIDARG;
-
- *disp_child = NULL;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_child);
- if (!target)
- return E_INVALIDARG;
-
- (*disp_child) = target->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accChildCount(LONG* child_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_CHILD_COUNT);
- if (!instance_active())
- return E_FAIL;
-
- if (!child_count)
- return E_INVALIDARG;
-
- *child_count = PlatformChildCount();
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accDefaultAction(VARIANT var_id,
- BSTR* def_action) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_DEFAULT_ACTION);
- if (!instance_active())
- return E_FAIL;
-
- if (!def_action)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- return target->get_localizedName(0, def_action);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accDescription(VARIANT var_id,
- BSTR* desc) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_DESCRIPTION);
- if (!instance_active())
- return E_FAIL;
-
- if (!desc)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- base::string16 description_str = target->description();
- if (description_str.empty())
- return S_FALSE;
-
- *desc = SysAllocString(description_str.c_str());
-
- DCHECK(*desc);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accFocus(VARIANT* focus_child) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_FOCUS);
- if (!instance_active())
- return E_FAIL;
-
- if (!focus_child)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* focus =
- static_cast<BrowserAccessibilityWin*>(manager_->GetFocus());
- if (focus == this) {
- focus_child->vt = VT_I4;
- focus_child->lVal = CHILDID_SELF;
- } else if (focus == NULL) {
- focus_child->vt = VT_EMPTY;
- } else {
- focus_child->vt = VT_DISPATCH;
- focus_child->pdispVal = focus->NewReference();
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accHelp(VARIANT var_id, BSTR* help) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_HELP);
- if (!instance_active())
- return E_FAIL;
-
- return GetPlatformNodeWin()->get_accHelp(var_id, help);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accKeyboardShortcut(VARIANT var_id,
- BSTR* acc_key) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_KEYBOARD_SHORTCUT);
- if (!instance_active())
- return E_FAIL;
-
- if (!acc_key)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- if (target->HasStringAttribute(ui::AX_ATTR_KEY_SHORTCUTS)) {
- return target->GetStringAttributeAsBstr(
- ui::AX_ATTR_KEY_SHORTCUTS, acc_key);
- }
-
- return target->GetStringAttributeAsBstr(
- ui::AX_ATTR_SHORTCUT, acc_key);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accName(VARIANT var_id, BSTR* name) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_NAME);
- if (!instance_active())
- return E_FAIL;
-
- return GetPlatformNodeWin()->get_accName(var_id, name);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accParent(IDispatch** disp_parent) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_PARENT);
- if (!instance_active())
- return E_FAIL;
-
- if (!disp_parent)
- return E_INVALIDARG;
-
- IAccessible* parent_obj = ToBrowserAccessibilityWin(PlatformGetParent());
- if (parent_obj == NULL) {
- // This happens if we're the root of the tree;
- // return the IAccessible for the window.
- parent_obj =
- manager_->ToBrowserAccessibilityManagerWin()->GetParentIAccessible();
- // |parent| can only be NULL if the manager was created before the parent
- // IAccessible was known and it wasn't subsequently set before a client
- // requested it. This has been fixed. |parent| may also be NULL during
- // destruction. Possible cases where this could occur include tabs being
- // dragged to a new window, etc.
- if (!parent_obj) {
- DVLOG(1) << "In Function: " << __func__
- << ". Parent IAccessible interface is NULL. Returning failure";
- return E_FAIL;
- }
- }
- parent_obj->AddRef();
- *disp_parent = parent_obj;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accRole(VARIANT var_id,
- VARIANT* role) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_ROLE);
- if (!instance_active())
- return E_FAIL;
-
- if (!role)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- if (!target->role_name().empty()) {
- role->vt = VT_BSTR;
- role->bstrVal = SysAllocString(target->role_name().c_str());
- } else {
- role->vt = VT_I4;
- role->lVal = target->ia_role();
- }
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accState(VARIANT var_id,
- VARIANT* state) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_STATE);
- if (!instance_active())
- return E_FAIL;
-
- if (!state)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- state->vt = VT_I4;
- state->lVal = target->ia_state();
- if (manager_->GetFocus() == this)
- state->lVal |= STATE_SYSTEM_FOCUSED;
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accValue(VARIANT var_id,
- BSTR* value) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_VALUE);
- if (!instance_active())
- return E_FAIL;
-
- if (!value)
- return E_INVALIDARG;
-
- BrowserAccessibilityWin* target = GetTargetFromChildID(var_id);
- if (!target)
- return E_INVALIDARG;
-
- if (target->ia_role() == ROLE_SYSTEM_PROGRESSBAR ||
- target->ia_role() == ROLE_SYSTEM_SCROLLBAR ||
- target->ia_role() == ROLE_SYSTEM_SLIDER) {
- base::string16 value_text = target->GetValueText();
- *value = SysAllocString(value_text.c_str());
- DCHECK(*value);
- return S_OK;
- }
-
- // Expose color well value.
- if (target->ia2_role() == IA2_ROLE_COLOR_CHOOSER) {
- unsigned int color = static_cast<unsigned int>(
- target->GetIntAttribute(ui::AX_ATTR_COLOR_VALUE));
- unsigned int red = SkColorGetR(color);
- unsigned int green = SkColorGetG(color);
- unsigned int blue = SkColorGetB(color);
- base::string16 value_text;
- value_text = base::UintToString16(red * 100 / 255) + L"% red " +
- base::UintToString16(green * 100 / 255) + L"% green " +
- base::UintToString16(blue * 100 / 255) + L"% blue";
- *value = SysAllocString(value_text.c_str());
- DCHECK(*value);
- return S_OK;
- }
-
- *value = SysAllocString(target->value().c_str());
- DCHECK(*value);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accHelpTopic(BSTR* help_file,
- VARIANT var_id,
- LONG* topic_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_HELP_TOPIC);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_accSelection(VARIANT* selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_SELECTION);
- if (!instance_active())
- return E_FAIL;
-
- if (GetRole() != ui::AX_ROLE_LIST_BOX)
- return E_NOTIMPL;
-
- unsigned long selected_count = 0;
- for (size_t i = 0; i < InternalChildCount(); ++i) {
- if (InternalGetChild(i)->HasState(ui::AX_STATE_SELECTED))
- ++selected_count;
- }
-
- if (selected_count == 0) {
- selected->vt = VT_EMPTY;
- return S_OK;
- }
-
- if (selected_count == 1) {
- for (size_t i = 0; i < InternalChildCount(); ++i) {
- if (InternalGetChild(i)->HasState(ui::AX_STATE_SELECTED)) {
- selected->vt = VT_DISPATCH;
- selected->pdispVal =
- ToBrowserAccessibilityWin(InternalGetChild(i))->NewReference();
- return S_OK;
- }
- }
- }
-
- // Multiple items are selected.
- base::win::EnumVariant* enum_variant =
- new base::win::EnumVariant(selected_count);
- enum_variant->AddRef();
- unsigned long index = 0;
- for (size_t i = 0; i < InternalChildCount(); ++i) {
- if (InternalGetChild(i)->HasState(ui::AX_STATE_SELECTED)) {
- enum_variant->ItemAt(index)->vt = VT_DISPATCH;
- enum_variant->ItemAt(index)->pdispVal =
- ToBrowserAccessibilityWin(InternalGetChild(i))->NewReference();
- ++index;
- }
- }
- selected->vt = VT_UNKNOWN;
- selected->punkVal = static_cast<IUnknown*>(
- static_cast<base::win::IUnknownImpl*>(enum_variant));
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::accSelect(
- LONG flags_sel, VARIANT var_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_SELECT);
- if (!instance_active())
- return E_FAIL;
-
- if (flags_sel & SELFLAG_TAKEFOCUS) {
- manager_->SetFocus(*this);
- return S_OK;
- }
-
- return S_FALSE;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::put_accName(VARIANT var_id, BSTR put_name) {
- return E_NOTIMPL;
-}
-STDMETHODIMP
-BrowserAccessibilityWin::put_accValue(VARIANT var_id, BSTR put_val) {
- return E_NOTIMPL;
-}
-
-//
-// IAccessible2 methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::role(LONG* role) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ROLE);
- if (!instance_active())
- return E_FAIL;
-
- if (!role)
- return E_INVALIDARG;
-
- *role = ia2_role();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_attributes(BSTR* attributes) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_IA2_GET_ATTRIBUTES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!attributes)
- return E_INVALIDARG;
- *attributes = nullptr;
-
- if (!instance_active())
- return E_FAIL;
-
- base::string16 str;
- for (const base::string16& attribute : ia2_attributes())
- str += attribute + L';';
-
- if (str.empty())
- return S_FALSE;
-
- *attributes = SysAllocString(str.c_str());
- DCHECK(*attributes);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_states(AccessibleStates* states) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_STATES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!states)
- return E_INVALIDARG;
-
- *states = ia2_state();
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_uniqueID(LONG* unique_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_UNIQUE_ID);
- if (!instance_active())
- return E_FAIL;
-
- if (!unique_id)
- return E_INVALIDARG;
-
- *unique_id = -this->unique_id();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_windowHandle(HWND* window_handle) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_WINDOW_HANDLE);
- if (!instance_active())
- return E_FAIL;
-
- if (!window_handle)
- return E_INVALIDARG;
-
- *window_handle =
- manager_->ToBrowserAccessibilityManagerWin()->GetParentHWND();
- if (!*window_handle)
- return E_FAIL;
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_indexInParent(LONG* index_in_parent) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_INDEX_IN_PARENT);
- if (!instance_active())
- return E_FAIL;
-
- if (!index_in_parent)
- return E_INVALIDARG;
-
- *index_in_parent = this->GetIndexInParent();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nRelations(LONG* n_relations) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_RELATIONS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_relations)
- return E_INVALIDARG;
-
- *n_relations = relations_.size();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_relation(
- LONG relation_index,
- IAccessibleRelation** relation) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_RELATION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (relation_index < 0 ||
- relation_index >= static_cast<long>(relations_.size())) {
- return E_INVALIDARG;
- }
-
- if (!relation)
- return E_INVALIDARG;
-
- relations_[relation_index]->AddRef();
- *relation = relations_[relation_index];
- return S_OK;
+ return new BrowserAccessibilityWin();
}
-STDMETHODIMP BrowserAccessibilityWin::get_relations(
- LONG max_relations,
- IAccessibleRelation** relations,
- LONG* n_relations) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_RELATIONS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!relations || !n_relations)
- return E_INVALIDARG;
-
- long count = static_cast<long>(relations_.size());
- *n_relations = count;
- if (count == 0)
- return S_FALSE;
+BrowserAccessibilityWin::BrowserAccessibilityWin() {
+ ui::win::CreateATLModuleIfNeeded();
+ HRESULT hr = CComObject<BrowserAccessibilityComWin>::CreateInstance(
+ &browser_accessibility_com_);
+ DCHECK(SUCCEEDED(hr));
- for (long i = 0; i < count; ++i) {
- relations_[i]->AddRef();
- relations[i] = relations_[i];
- }
+ browser_accessibility_com_->AddRef();
+ browser_accessibility_com_->SetOwner(this);
- return S_OK;
+ // Set the delegate to us
+ browser_accessibility_com_->Init(this);
}
-STDMETHODIMP BrowserAccessibilityWin::scrollTo(IA2ScrollType scroll_type) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_IA2_SCROLL_TO);
- if (!instance_active())
- return E_FAIL;
+BrowserAccessibilityWin::~BrowserAccessibilityWin() {}
- gfx::Rect r = GetFrameBoundsRect();
- switch(scroll_type) {
- case IA2_SCROLL_TYPE_TOP_LEFT:
- manager_->ScrollToMakeVisible(*this, gfx::Rect(r.x(), r.y(), 0, 0));
- break;
- case IA2_SCROLL_TYPE_BOTTOM_RIGHT:
- manager_->ScrollToMakeVisible(*this,
- gfx::Rect(r.right(), r.bottom(), 0, 0));
- break;
- case IA2_SCROLL_TYPE_TOP_EDGE:
- manager_->ScrollToMakeVisible(*this,
- gfx::Rect(r.x(), r.y(), r.width(), 0));
- break;
- case IA2_SCROLL_TYPE_BOTTOM_EDGE:
- manager_->ScrollToMakeVisible(*this,
- gfx::Rect(r.x(), r.bottom(), r.width(), 0));
- break;
- case IA2_SCROLL_TYPE_LEFT_EDGE:
- manager_->ScrollToMakeVisible(*this,
- gfx::Rect(r.x(), r.y(), 0, r.height()));
- break;
- case IA2_SCROLL_TYPE_RIGHT_EDGE:
- manager_->ScrollToMakeVisible(*this,
- gfx::Rect(r.right(), r.y(), 0, r.height()));
- break;
- case IA2_SCROLL_TYPE_ANYWHERE:
- default:
- manager_->ScrollToMakeVisible(*this, r);
- break;
- }
-
- return S_OK;
+void BrowserAccessibilityWin::UpdatePlatformAttributes() {
+ GetCOM()->UpdateStep1ComputeWinAttributes();
+ GetCOM()->UpdateStep2ComputeHypertext();
+ GetCOM()->UpdateStep3FireEvents(false);
}
-STDMETHODIMP BrowserAccessibilityWin::scrollToPoint(
- IA2CoordinateType coordinate_type,
- LONG x,
- LONG y) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_TO_POINT);
- if (!instance_active())
- return E_FAIL;
-
- gfx::Point scroll_to(x, y);
-
- if (coordinate_type == IA2_COORDTYPE_SCREEN_RELATIVE) {
- scroll_to -= manager_->GetViewBounds().OffsetFromOrigin();
- } else if (coordinate_type == IA2_COORDTYPE_PARENT_RELATIVE) {
- if (PlatformGetParent())
- scroll_to += PlatformGetParent()->GetFrameBoundsRect().OffsetFromOrigin();
- } else {
- return E_INVALIDARG;
+void BrowserAccessibilityWin::Destroy() {
+ if (browser_accessibility_com_) {
+ browser_accessibility_com_->SetOwner(nullptr);
+ // TODO(dougt) AXPlatformNode::Reset
+ browser_accessibility_com_->Init(nullptr);
+ browser_accessibility_com_->Release();
+ browser_accessibility_com_ = nullptr;
}
-
- manager_->ScrollToPoint(*this, scroll_to);
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_groupPosition(
- LONG* group_level,
- LONG* similar_items_in_group,
- LONG* position_in_group) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_GROUP_POSITION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!group_level || !similar_items_in_group || !position_in_group)
- return E_INVALIDARG;
-
- *group_level = GetIntAttribute(ui::AX_ATTR_HIERARCHICAL_LEVEL);
- *similar_items_in_group = GetIntAttribute(ui::AX_ATTR_SET_SIZE);
- *position_in_group = GetIntAttribute(ui::AX_ATTR_POS_IN_SET);
-
- if (*group_level == *similar_items_in_group == *position_in_group == 0)
- return S_FALSE;
- return S_OK;
+ BrowserAccessibility::Destroy();
}
-STDMETHODIMP
-BrowserAccessibilityWin::get_localizedExtendedRole(
- BSTR* localized_extended_role) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCALIZED_EXTENDED_ROLE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
-
- if (!instance_active())
- return E_FAIL;
-
- if (!localized_extended_role)
- return E_INVALIDARG;
-
- return GetStringAttributeAsBstr(
- ui::AX_ATTR_ROLE_DESCRIPTION, localized_extended_role);
+void BrowserAccessibilityWin::OnSubtreeWillBeDeleted() {
+ GetCOM()->FireNativeEvent(EVENT_OBJECT_HIDE);
}
-//
-// IAccessible2 methods not implemented.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_extendedRole(BSTR* extended_role) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_EXTENDED_ROLE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-STDMETHODIMP
-BrowserAccessibilityWin::get_nExtendedStates(LONG* n_extended_states) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_EXTENDED_STATES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-STDMETHODIMP
-BrowserAccessibilityWin::get_extendedStates(LONG max_extended_states,
- BSTR** extended_states,
- LONG* n_extended_states) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_EXTENDED_STATES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-STDMETHODIMP
-BrowserAccessibilityWin::get_localizedExtendedStates(
- LONG max_localized_extended_states,
- BSTR** localized_extended_states,
- LONG* n_localized_extended_states) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCALIZED_EXTENDED_STATES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-STDMETHODIMP BrowserAccessibilityWin::get_locale(IA2Locale* locale) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCALE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
+bool BrowserAccessibilityWin::IsNative() const {
+ return true;
}
-//
-// IAccessibleApplication methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_appName(BSTR* app_name) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_APP_NAME);
- // No need to check |instance_active()| because this interface is
- // global, and doesn't depend on any local state.
-
- if (!app_name)
- return E_INVALIDARG;
-
- // GetProduct() returns a string like "Chrome/aa.bb.cc.dd", split out
- // the part before the "/".
- std::vector<std::string> product_components = base::SplitString(
- GetContentClient()->GetProduct(), "/",
- base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
- DCHECK_EQ(2U, product_components.size());
- if (product_components.size() != 2)
- return E_FAIL;
- *app_name = SysAllocString(base::UTF8ToUTF16(product_components[0]).c_str());
- DCHECK(*app_name);
- return *app_name ? S_OK : E_FAIL;
+void BrowserAccessibilityWin::OnLocationChanged() {
+ GetCOM()->FireNativeEvent(EVENT_OBJECT_LOCATIONCHANGE);
}
-STDMETHODIMP BrowserAccessibilityWin::get_appVersion(BSTR* app_version) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_APP_VERSION);
- // No need to check |instance_active()| because this interface is
- // global, and doesn't depend on any local state.
-
- if (!app_version)
- return E_INVALIDARG;
-
- // GetProduct() returns a string like "Chrome/aa.bb.cc.dd", split out
- // the part after the "/".
- std::vector<std::string> product_components = base::SplitString(
- GetContentClient()->GetProduct(), "/",
- base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
- DCHECK_EQ(2U, product_components.size());
- if (product_components.size() != 2)
- return E_FAIL;
- *app_version =
- SysAllocString(base::UTF8ToUTF16(product_components[1]).c_str());
- DCHECK(*app_version);
- return *app_version ? S_OK : E_FAIL;
+base::string16 BrowserAccessibilityWin::GetText() const {
+ if (PlatformIsChildOfLeaf())
+ return BrowserAccessibility::GetText();
+ return GetCOM()->win_attributes_->hypertext;
}
-STDMETHODIMP BrowserAccessibilityWin::get_toolkitName(BSTR* toolkit_name) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TOOLKIT_NAME);
- // No need to check |instance_active()| because this interface is
- // global, and doesn't depend on any local state.
-
- if (!toolkit_name)
- return E_INVALIDARG;
-
- // This is hard-coded; all products based on the Chromium engine
- // will have the same toolkit name, so that assistive technology can
- // detect any Chrome-based product.
- *toolkit_name = SysAllocString(L"Chrome");
- DCHECK(*toolkit_name);
- return *toolkit_name ? S_OK : E_FAIL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_toolkitVersion(
- BSTR* toolkit_version) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TOOLKIT_VERSION);
- // No need to check |instance_active()| because this interface is
- // global, and doesn't depend on any local state.
-
- if (!toolkit_version)
- return E_INVALIDARG;
-
- std::string user_agent = GetContentClient()->GetUserAgent();
- *toolkit_version = SysAllocString(base::UTF8ToUTF16(user_agent).c_str());
- DCHECK(*toolkit_version);
- return *toolkit_version ? S_OK : E_FAIL;
-}
-
-//
-// IAccessibleImage methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_description(BSTR* desc) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_DESCRIPTION);
- if (!instance_active())
- return E_FAIL;
-
- if (!desc)
- return E_INVALIDARG;
-
- if (description().empty())
- return S_FALSE;
-
- *desc = SysAllocString(description().c_str());
-
- DCHECK(*desc);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_imagePosition(
- IA2CoordinateType coordinate_type,
- LONG* x,
- LONG* y) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IMAGE_POSITION);
- if (!instance_active())
- return E_FAIL;
-
- if (!x || !y)
- return E_INVALIDARG;
-
- if (coordinate_type == IA2_COORDTYPE_SCREEN_RELATIVE) {
- gfx::Rect bounds = GetScreenBoundsRect();
- *x = bounds.x();
- *y = bounds.y();
- } else if (coordinate_type == IA2_COORDTYPE_PARENT_RELATIVE) {
- gfx::Rect bounds = GetPageBoundsRect();
- gfx::Rect parent_bounds = PlatformGetParent()
- ? PlatformGetParent()->GetPageBoundsRect()
- : gfx::Rect();
- *x = bounds.x() - parent_bounds.x();
- *y = bounds.y() - parent_bounds.y();
- } else {
- return E_INVALIDARG;
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_imageSize(LONG* height, LONG* width) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IMAGE_SIZE);
- if (!instance_active())
- return E_FAIL;
-
- if (!height || !width)
- return E_INVALIDARG;
-
- *height = GetPageBoundsRect().height();
- *width = GetPageBoundsRect().width();
- return S_OK;
-}
-
-//
-// IAccessibleTable methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_accessibleAt(
- long row,
- long column,
- IUnknown** accessible) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACCESSIBLE_AT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!accessible)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell =
- GetTableCell(static_cast<int>(row), static_cast<int>(column));
- if (cell && ToBrowserAccessibilityWin(cell)) {
- *accessible = static_cast<IAccessible*>(
- ToBrowserAccessibilityWin(cell)->NewReference());
- return S_OK;
- }
-
- *accessible = nullptr;
- return E_INVALIDARG;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_caption(IUnknown** accessible) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CAPTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!accessible)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): implement
- *accessible = nullptr;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_childIndex(long row,
- long column,
- long* cell_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CHILD_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!cell_index)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell =
- GetTableCell(static_cast<int>(row), static_cast<int>(column));
- if (cell) {
- *cell_index = static_cast<LONG>(cell->GetTableCellIndex());
- return S_OK;
- }
-
- *cell_index = 0;
- return E_INVALIDARG;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnDescription(long column,
- BSTR* description) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_DESCRIPTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!description)
- return E_INVALIDARG;
-
- int columns = GetTableColumnCount();
- if (column < 0 || column >= columns)
- return E_INVALIDARG;
-
- int rows = GetTableRowCount();
- if (rows <= 0) {
- *description = nullptr;
- return S_FALSE;
- }
-
- for (int i = 0; i < rows; ++i) {
- const BrowserAccessibility* cell = GetTableCell(i, column);
- if (ToBrowserAccessibilityWin(cell) &&
- cell->GetRole() == ui::AX_ROLE_COLUMN_HEADER) {
- base::string16 cell_name = cell->GetString16Attribute(
- ui::AX_ATTR_NAME);
- if (cell_name.size() > 0) {
- *description = SysAllocString(cell_name.c_str());
- return S_OK;
- }
-
- if (ToBrowserAccessibilityWin(cell)->description().size() > 0) {
- *description = SysAllocString(
- ToBrowserAccessibilityWin(cell)->description().c_str());
- return S_OK;
- }
- }
- }
-
- *description = nullptr;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnExtentAt(
- long row,
- long column,
- long* n_columns_spanned) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_EXTENT_AT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_columns_spanned)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell =
- GetTableCell(static_cast<int>(row), static_cast<int>(column));
- if (!cell)
- return E_INVALIDARG;
-
- *n_columns_spanned = cell->GetTableColumnSpan();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnHeader(
- IAccessibleTable** accessible_table,
- long* starting_row_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_HEADER);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- // TODO(dmazzoni): implement
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnIndex(long cell_index,
- long* column_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!column_index)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell = GetTableCell(cell_index);
- if (!cell)
- return E_INVALIDARG;
- *column_index = cell->GetTableColumn();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nColumns(long* column_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_COLUMNS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!column_count)
- return E_INVALIDARG;
-
- *column_count = GetTableColumnCount();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nRows(long* row_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_ROWS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!row_count)
- return E_INVALIDARG;
-
- *row_count = GetTableRowCount();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nSelectedChildren(long* cell_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_CHILDREN);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!cell_count)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): add support for selected cells/rows/columns in tables.
- *cell_count = 0;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nSelectedColumns(long* column_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_COLUMNS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!column_count)
- return E_INVALIDARG;
-
- *column_count = 0;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nSelectedRows(long* row_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_ROWS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!row_count)
- return E_INVALIDARG;
-
- *row_count = 0;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowDescription(long row,
- BSTR* description) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_DESCRIPTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!description)
- return E_INVALIDARG;
-
- if (row < 0 || row >= GetTableRowCount())
- return E_INVALIDARG;
-
- int columns = GetTableColumnCount();
- if (columns <= 0) {
- *description = nullptr;
- return S_FALSE;
- }
-
- for (int i = 0; i < columns; ++i) {
- const BrowserAccessibility* cell = GetTableCell(row, i);
- if (ToBrowserAccessibilityWin(cell) &&
- cell->GetRole() == ui::AX_ROLE_ROW_HEADER) {
- base::string16 cell_name = cell->GetString16Attribute(
- ui::AX_ATTR_NAME);
- if (cell_name.size() > 0) {
- *description = SysAllocString(cell_name.c_str());
- return S_OK;
- }
-
- if (ToBrowserAccessibilityWin(cell)->description().size() > 0) {
- *description = SysAllocString(
- ToBrowserAccessibilityWin(cell)->description().c_str());
- return S_OK;
- }
- }
- }
-
- *description = nullptr;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowExtentAt(long row,
- long column,
- long* n_rows_spanned) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_EXTENT_AT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_rows_spanned)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell = GetTableCell(row, column);
- if (!cell)
- return E_INVALIDARG;
-
- *n_rows_spanned = GetTableRowSpan();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowHeader(
- IAccessibleTable** accessible_table,
- long* starting_column_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_HEADER);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- // TODO(dmazzoni): implement
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowIndex(long cell_index,
- long* row_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!row_index)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell = GetTableCell(cell_index);
- if (!cell)
- return E_INVALIDARG;
-
- *row_index = cell->GetTableRow();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selectedChildren(long max_children,
- long** children,
- long* n_children) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SELECTED_CHILDREN);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!children || !n_children)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *n_children = 0;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selectedColumns(long max_columns,
- long** columns,
- long* n_columns) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SELECTED_COLUMNS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!columns || !n_columns)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *n_columns = 0;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selectedRows(long max_rows,
- long** rows,
- long* n_rows) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SELECTED_ROWS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!rows || !n_rows)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *n_rows = 0;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_summary(IUnknown** accessible) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SUMMARY);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!accessible)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): implement
- *accessible = nullptr;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_isColumnSelected(
- long column,
- boolean* is_selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IS_COLUMN_SELECTED);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!is_selected)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *is_selected = false;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_isRowSelected(long row,
- boolean* is_selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IS_ROW_SELECTED);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!is_selected)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *is_selected = false;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_isSelected(long row,
- long column,
- boolean* is_selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IS_SELECTED);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!is_selected)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *is_selected = false;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowColumnExtentsAtIndex(
- long index,
- long* row,
- long* column,
- long* row_extents,
- long* column_extents,
- boolean* is_selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_COLUMN_EXTENTS_AT_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!row || !column || !row_extents || !column_extents || !is_selected)
- return E_INVALIDARG;
-
- BrowserAccessibility* cell = GetTableCell(index);
- if (!cell)
- return E_INVALIDARG;
-
- *row = cell->GetTableRow();
- *column = cell->GetTableColumn();
- *row_extents = GetTableRowSpan();
- *column_extents = GetTableColumnSpan();
- *is_selected = false; // Not supported.
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::selectRow(long row) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECT_ROW);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::selectColumn(long column) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECT_COLUMN);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::unselectRow(long row) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_UNSELECT_ROW);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::unselectColumn(long column) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_UNSELECT_COLUMN);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::get_modelChange(IA2TableModelChange* model_change) {
- return E_NOTIMPL;
-}
-
-//
-// IAccessibleTable2 methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_cellAt(long row,
- long column,
- IUnknown** cell) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CELL_AT);
- AddAccessibilityModeFlags(AccessibilityMode::kScreenReader);
- if (!instance_active())
- return E_FAIL;
-
- if (!cell)
- return E_INVALIDARG;
-
- BrowserAccessibility* table_cell =
- GetTableCell(static_cast<int>(row), static_cast<int>(column));
- if (ToBrowserAccessibilityWin(table_cell)) {
- return ToBrowserAccessibilityWin(table_cell)
- ->QueryInterface(IID_IUnknown, reinterpret_cast<void**>(cell));
- }
-
- *cell = nullptr;
- return E_INVALIDARG;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nSelectedCells(long* cell_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_CELLS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return get_nSelectedChildren(cell_count);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selectedCells(
- IUnknown*** cells,
- long* n_selected_cells) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SELECTED_CELLS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!cells || !n_selected_cells)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *n_selected_cells = 0;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selectedColumns(long** columns,
- long* n_columns) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLE2_GET_SELECTED_COLUMNS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!columns || !n_columns)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *n_columns = 0;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selectedRows(long** rows,
- long* n_rows) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLE2_GET_SELECTED_ROWS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!rows || !n_rows)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): Implement this.
- *n_rows = 0;
- return S_OK;
-}
-
-
-//
-// IAccessibleTableCell methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnExtent(
- long* n_columns_spanned) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_EXTENT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_columns_spanned)
- return E_INVALIDARG;
-
- *n_columns_spanned = GetTableColumnSpan();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnHeaderCells(
- IUnknown*** cell_accessibles,
- long* n_column_header_cells) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_HEADER_CELLS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!cell_accessibles || !n_column_header_cells)
- return E_INVALIDARG;
-
- *n_column_header_cells = 0;
- BrowserAccessibility* table = GetTable();
- if (!table) {
- NOTREACHED();
- return S_FALSE;
- }
-
- int column = GetTableColumn();
- int columns = GetTableColumnCount();
- int rows = GetTableRowCount();
- if (columns <= 0 || rows <= 0 || column < 0 || column >= columns)
- return S_FALSE;
-
- for (int i = 0; i < rows; ++i) {
- BrowserAccessibility* cell = GetTableCell(i, column);
- if (cell && cell->GetRole() == ui::AX_ROLE_COLUMN_HEADER)
- (*n_column_header_cells)++;
- }
-
- *cell_accessibles = static_cast<IUnknown**>(CoTaskMemAlloc(
- (*n_column_header_cells) * sizeof(cell_accessibles[0])));
- int index = 0;
- for (int i = 0; i < rows; ++i) {
- BrowserAccessibility* cell = GetTableCell(i, column);
- if (cell && cell->GetRole() == ui::AX_ROLE_COLUMN_HEADER) {
- (*cell_accessibles)[index] = static_cast<IAccessible*>(
- ToBrowserAccessibilityWin(cell)->NewReference());
- ++index;
- }
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_columnIndex(long* column_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLECELL_GET_COLUMN_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!column_index)
- return E_INVALIDARG;
-
- *column_index = GetTableColumn();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowExtent(long* n_rows_spanned) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_EXTENT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_rows_spanned)
- return E_INVALIDARG;
-
- *n_rows_spanned = GetTableRowSpan();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowHeaderCells(
- IUnknown*** cell_accessibles,
- long* n_row_header_cells) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_HEADER_CELLS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!cell_accessibles || !n_row_header_cells)
- return E_INVALIDARG;
-
- *n_row_header_cells = 0;
- BrowserAccessibility* table = GetTable();
- if (!table) {
- NOTREACHED();
- return S_FALSE;
- }
-
- int row = GetTableRow();
- int columns = GetTableColumnCount();
- int rows = GetTableRowCount();
- if (columns <= 0 || rows <= 0 || row < 0 || row >= rows)
- return S_FALSE;
-
- for (int i = 0; i < columns; ++i) {
- BrowserAccessibility* cell = GetTableCell(row, i);
- if (cell && cell->GetRole() == ui::AX_ROLE_ROW_HEADER)
- (*n_row_header_cells)++;
- }
-
- *cell_accessibles = static_cast<IUnknown**>(CoTaskMemAlloc(
- (*n_row_header_cells) * sizeof(cell_accessibles[0])));
- int index = 0;
- for (int i = 0; i < columns; ++i) {
- BrowserAccessibility* cell = GetTableCell(row, i);
- if (cell && cell->GetRole() == ui::AX_ROLE_ROW_HEADER) {
- (*cell_accessibles)[index] = static_cast<IAccessible*>(
- ToBrowserAccessibilityWin(cell)->NewReference());
- ++index;
- }
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowIndex(long* row_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLECELL_GET_ROW_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!row_index)
- return E_INVALIDARG;
-
- *row_index = GetTableRow();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_isSelected(boolean* is_selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLECELL_GET_IS_SELECTED);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!is_selected)
- return E_INVALIDARG;
-
- *is_selected = false;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_rowColumnExtents(
- long* row_index,
- long* column_index,
- long* row_extents,
- long* column_extents,
- boolean* is_selected) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_COLUMN_EXTENTS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!row_index ||
- !column_index ||
- !row_extents ||
- !column_extents ||
- !is_selected) {
- return E_INVALIDARG;
- }
-
- *row_index = GetTableRow();
- *column_index = GetTableColumn();
- *row_extents = GetTableRowSpan();
- *column_extents = GetTableColumnSpan();
- *is_selected = false; // Not supported.
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_table(IUnknown** table) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TABLE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!table)
- return E_INVALIDARG;
-
- BrowserAccessibility* find_table = GetTable();
- if (!find_table || !ToBrowserAccessibilityWin(find_table)) {
- *table = nullptr;
- return S_FALSE;
- }
-
- *table = static_cast<IAccessibleTable*>(
- ToBrowserAccessibilityWin(find_table)->NewReference());
- return S_OK;
-}
-
-//
-// IAccessibleText methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_nCharacters(LONG* n_characters) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_CHARACTERS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_characters)
- return E_INVALIDARG;
-
- *n_characters = static_cast<LONG>(GetText().size());
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_caretOffset(LONG* offset) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CARET_OFFSET);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!offset)
- return E_INVALIDARG;
-
- if (!HasCaret())
- return S_FALSE;
-
- int selection_start, selection_end;
- GetSelectionOffsets(&selection_start, &selection_end);
- // The caret is always at the end of the selection.
- *offset = selection_end;
- if (*offset < 0)
- return S_FALSE;
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_characterExtents(
- LONG offset,
- IA2CoordinateType coordinate_type,
- LONG* out_x,
- LONG* out_y,
- LONG* out_width,
- LONG* out_height) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CHARACTER_EXTENTS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!out_x || !out_y || !out_width || !out_height)
- return E_INVALIDARG;
-
- const base::string16& text_str = GetText();
- HandleSpecialTextOffset(&offset);
- if (offset < 0 || offset > static_cast<LONG>(text_str.size()))
- return E_INVALIDARG;
-
- gfx::Rect character_bounds;
- if (coordinate_type == IA2_COORDTYPE_SCREEN_RELATIVE) {
- character_bounds = GetScreenBoundsForRange(offset, 1);
- } else if (coordinate_type == IA2_COORDTYPE_PARENT_RELATIVE) {
- character_bounds = GetPageBoundsForRange(offset, 1);
- if (PlatformGetParent())
- character_bounds -=
- PlatformGetParent()->GetPageBoundsRect().OffsetFromOrigin();
- } else {
- return E_INVALIDARG;
- }
-
- *out_x = character_bounds.x();
- *out_y = character_bounds.y();
- *out_width = character_bounds.width();
- *out_height = character_bounds.height();
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nSelections(LONG* n_selections) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTIONS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_selections)
- return E_INVALIDARG;
-
- *n_selections = 0;
- int selection_start, selection_end;
- GetSelectionOffsets(&selection_start, &selection_end);
- if (selection_start >= 0 && selection_end >= 0 &&
- selection_start != selection_end) {
- *n_selections = 1;
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_selection(LONG selection_index,
- LONG* start_offset,
- LONG* end_offset) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SELECTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!start_offset || !end_offset || selection_index != 0)
- return E_INVALIDARG;
-
- *start_offset = 0;
- *end_offset = 0;
- int selection_start, selection_end;
- GetSelectionOffsets(&selection_start, &selection_end);
- if (selection_start >= 0 && selection_end >= 0 &&
- selection_start != selection_end) {
- // We should ignore the direction of the selection when exposing start and
- // end offsets. According to the IA2 Spec the end offset is always increased
- // by one past the end of the selection. This wouldn't make sense if
- // end < start.
- if (selection_end < selection_start)
- std::swap(selection_start, selection_end);
-
- *start_offset = selection_start;
- *end_offset = selection_end;
- return S_OK;
- }
-
- return E_INVALIDARG;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_text(LONG start_offset,
- LONG end_offset,
- BSTR* text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TEXT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!text)
- return E_INVALIDARG;
-
- const base::string16& text_str = GetText();
- HandleSpecialTextOffset(&start_offset);
- HandleSpecialTextOffset(&end_offset);
-
- // The spec allows the arguments to be reversed.
- if (start_offset > end_offset) {
- LONG tmp = start_offset;
- start_offset = end_offset;
- end_offset = tmp;
- }
-
- // The spec does not allow the start or end offsets to be out or range;
- // we must return an error if so.
- LONG len = text_str.length();
- if (start_offset < 0)
- return E_INVALIDARG;
- if (end_offset > len)
- return E_INVALIDARG;
-
- base::string16 substr = text_str.substr(start_offset,
- end_offset - start_offset);
-
- if (substr.empty())
- return S_FALSE;
-
- *text = SysAllocString(substr.c_str());
- DCHECK(*text);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_textAtOffset(
- LONG offset,
- IA2TextBoundaryType boundary_type,
- LONG* start_offset,
- LONG* end_offset,
- BSTR* text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TEXT_AT_OFFSET);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!start_offset || !end_offset || !text)
- return E_INVALIDARG;
-
- HandleSpecialTextOffset(&offset);
- if (offset < 0)
- return E_INVALIDARG;
-
- const base::string16& text_str = GetText();
- LONG text_len = text_str.length();
- if (offset > text_len)
- return E_INVALIDARG;
-
- // The IAccessible2 spec says we don't have to implement the "sentence"
- // boundary type, we can just let the screenreader handle it.
- if (boundary_type == IA2_TEXT_BOUNDARY_SENTENCE) {
- *start_offset = 0;
- *end_offset = 0;
- *text = NULL;
- return S_FALSE;
- }
-
- // According to the IA2 Spec, only line boundaries should succeed when
- // the offset is one past the end of the text.
- if (offset == text_len) {
- if (boundary_type == IA2_TEXT_BOUNDARY_LINE) {
- --offset;
- } else {
- *start_offset = 0;
- *end_offset = 0;
- *text = nullptr;
- return S_FALSE;
- }
- }
-
- *start_offset = FindBoundary(
- text_str, boundary_type, offset, ui::BACKWARDS_DIRECTION);
- *end_offset = FindBoundary(
- text_str, boundary_type, offset, ui::FORWARDS_DIRECTION);
- return get_text(*start_offset, *end_offset, text);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_textBeforeOffset(
- LONG offset,
- IA2TextBoundaryType boundary_type,
- LONG* start_offset,
- LONG* end_offset,
- BSTR* text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TEXT_BEFORE_OFFSET);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!start_offset || !end_offset || !text)
- return E_INVALIDARG;
-
- // The IAccessible2 spec says we don't have to implement the "sentence"
- // boundary type, we can just let the screenreader handle it.
- if (boundary_type == IA2_TEXT_BOUNDARY_SENTENCE) {
- *start_offset = 0;
- *end_offset = 0;
- *text = NULL;
- return S_FALSE;
- }
-
- const base::string16& text_str = GetText();
-
- *start_offset = FindBoundary(
- text_str, boundary_type, offset, ui::BACKWARDS_DIRECTION);
- *end_offset = offset;
- return get_text(*start_offset, *end_offset, text);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_textAfterOffset(
- LONG offset,
- IA2TextBoundaryType boundary_type,
- LONG* start_offset,
- LONG* end_offset,
- BSTR* text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TEXT_AFTER_OFFSET);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!start_offset || !end_offset || !text)
- return E_INVALIDARG;
-
- // The IAccessible2 spec says we don't have to implement the "sentence"
- // boundary type, we can just let the screenreader handle it.
- if (boundary_type == IA2_TEXT_BOUNDARY_SENTENCE) {
- *start_offset = 0;
- *end_offset = 0;
- *text = NULL;
- return S_FALSE;
- }
-
- const base::string16& text_str = GetText();
-
- *start_offset = offset;
- *end_offset = FindBoundary(
- text_str, boundary_type, offset, ui::FORWARDS_DIRECTION);
- return get_text(*start_offset, *end_offset, text);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_newText(IA2TextSegment* new_text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_NEW_TEXT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!new_text)
- return E_INVALIDARG;
-
- if (!old_win_attributes_)
- return E_FAIL;
-
- int start, old_len, new_len;
- ComputeHypertextRemovedAndInserted(&start, &old_len, &new_len);
- if (new_len == 0)
- return E_FAIL;
-
- base::string16 substr = GetText().substr(start, new_len);
- new_text->text = SysAllocString(substr.c_str());
- new_text->start = static_cast<long>(start);
- new_text->end = static_cast<long>(start + new_len);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_oldText(IA2TextSegment* old_text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_OLD_TEXT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!old_text)
- return E_INVALIDARG;
-
- if (!old_win_attributes_)
- return E_FAIL;
-
- int start, old_len, new_len;
- ComputeHypertextRemovedAndInserted(&start, &old_len, &new_len);
- if (old_len == 0)
- return E_FAIL;
-
- base::string16 old_hypertext = old_win_attributes_->hypertext;
- base::string16 substr = old_hypertext.substr(start, old_len);
- old_text->text = SysAllocString(substr.c_str());
- old_text->start = static_cast<long>(start);
- old_text->end = static_cast<long>(start + old_len);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_offsetAtPoint(
- LONG x,
- LONG y,
- IA2CoordinateType coord_type,
- LONG* offset) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_OFFSET_AT_POINT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!offset)
- return E_INVALIDARG;
-
- // TODO(dmazzoni): implement this. We're returning S_OK for now so that
- // screen readers still return partially accurate results rather than
- // completely failing.
- *offset = 0;
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::scrollSubstringTo(
- LONG start_index,
- LONG end_index,
- IA2ScrollType scroll_type) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_SUBSTRING_TO);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- // TODO(dmazzoni): adjust this for the start and end index, too.
- return scrollTo(scroll_type);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::scrollSubstringToPoint(
- LONG start_index,
- LONG end_index,
- IA2CoordinateType coordinate_type,
- LONG x,
- LONG y) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_SUBSTRING_TO_POINT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (start_index > end_index)
- std::swap(start_index, end_index);
- LONG length = end_index - start_index + 1;
- DCHECK_GE(length, 0);
-
- gfx::Rect string_bounds = GetPageBoundsForRange(start_index, length);
- string_bounds -= GetPageBoundsRect().OffsetFromOrigin();
- x -= string_bounds.x();
- y -= string_bounds.y();
-
- return scrollToPoint(coordinate_type, x, y);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::addSelection(LONG start_offset,
- LONG end_offset) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ADD_SELECTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- // We only support one selection.
- SetIA2HypertextSelection(start_offset, end_offset);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::removeSelection(LONG selection_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_REMOVE_SELECTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (selection_index != 0)
- return E_INVALIDARG;
-
- // Simply collapse the selection to the position of the caret if a caret is
- // visible, otherwise set the selection to 0.
- LONG caret_offset = 0;
- int selection_start, selection_end;
- GetSelectionOffsets(&selection_start, &selection_end);
- if (HasCaret() && selection_end >= 0)
- caret_offset = selection_end;
- SetIA2HypertextSelection(caret_offset, caret_offset);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::setCaretOffset(LONG offset) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SET_CARET_OFFSET);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
- SetIA2HypertextSelection(offset, offset);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::setSelection(LONG selection_index,
- LONG start_offset,
- LONG end_offset) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SET_SELECTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
- if (selection_index != 0)
- return E_INVALIDARG;
- SetIA2HypertextSelection(start_offset, end_offset);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_attributes(LONG offset,
- LONG* start_offset,
- LONG* end_offset,
- BSTR* text_attributes) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_IATEXT_GET_ATTRIBUTES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!start_offset || !end_offset || !text_attributes)
- return E_INVALIDARG;
-
- *start_offset = *end_offset = 0;
- *text_attributes = nullptr;
- if (!instance_active())
- return E_FAIL;
-
- const base::string16 text = GetText();
- HandleSpecialTextOffset(&offset);
- if (offset < 0 || offset > static_cast<LONG>(text.size()))
- return E_INVALIDARG;
-
- ComputeStylesIfNeeded();
- *start_offset = FindStartOfStyle(offset, ui::BACKWARDS_DIRECTION);
- *end_offset = FindStartOfStyle(offset, ui::FORWARDS_DIRECTION);
-
- base::string16 attributes_str;
- const std::vector<base::string16>& attributes =
- offset_to_text_attributes().find(*start_offset)->second;
- for (const base::string16& attribute : attributes) {
- attributes_str += attribute + L';';
- }
-
- if (attributes.empty())
- return S_FALSE;
-
- *text_attributes = SysAllocString(attributes_str.c_str());
- DCHECK(*text_attributes);
- return S_OK;
-}
-
-//
-// IAccessibleHypertext methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_nHyperlinks(long* hyperlink_count) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_HYPERLINKS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!hyperlink_count)
- return E_INVALIDARG;
-
- *hyperlink_count = hyperlink_offset_to_index().size();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_hyperlink(
- long index,
- IAccessibleHyperlink** hyperlink) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_HYPERLINK);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!hyperlink ||
- index < 0 ||
- index >= static_cast<long>(hyperlinks().size())) {
- return E_INVALIDARG;
- }
-
- int32_t id = hyperlinks()[index];
- BrowserAccessibilityWin* link =
- ToBrowserAccessibilityWin(GetFromUniqueID(id));
- if (!link)
- return E_FAIL;
-
- *hyperlink = static_cast<IAccessibleHyperlink*>(link->NewReference());
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_hyperlinkIndex(
- long char_index,
- long* hyperlink_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_HYPERLINK_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!hyperlink_index)
- return E_INVALIDARG;
-
- if (char_index < 0 || char_index >= static_cast<long>(GetText().size())) {
- return E_INVALIDARG;
- }
-
- std::map<int32_t, int32_t>::iterator it =
- hyperlink_offset_to_index().find(char_index);
- if (it == hyperlink_offset_to_index().end()) {
- *hyperlink_index = -1;
- return S_FALSE;
- }
-
- *hyperlink_index = it->second;
- return S_OK;
-}
-
-//
-// IAccessibleHyperlink methods.
-//
-
-// Currently, only text links are supported.
-STDMETHODIMP BrowserAccessibilityWin::get_anchor(long index, VARIANT* anchor) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ANCHOR);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active() || !IsHyperlink())
- return E_FAIL;
-
- // IA2 text links can have only one anchor, that is the text inside them.
- if (index != 0 || !anchor)
- return E_INVALIDARG;
-
- BSTR ia2_hypertext = SysAllocString(GetText().c_str());
- DCHECK(ia2_hypertext);
- anchor->vt = VT_BSTR;
- anchor->bstrVal = ia2_hypertext;
-
- // Returning S_FALSE is not mentioned in the IA2 Spec, but it might have been
- // an oversight.
- if (!SysStringLen(ia2_hypertext))
- return S_FALSE;
-
- return S_OK;
-}
-
-// Currently, only text links are supported.
-STDMETHODIMP BrowserAccessibilityWin::get_anchorTarget(long index,
- VARIANT* anchor_target) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ANCHOR_TARGET);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active() || !IsHyperlink())
- return E_FAIL;
-
- // IA2 text links can have at most one target, that is when they represent an
- // HTML hyperlink, i.e. an <a> element with a "href" attribute.
- if (index != 0 || !anchor_target)
- return E_INVALIDARG;
-
- BSTR target;
- if (!(ia_state() & STATE_SYSTEM_LINKED) ||
- FAILED(GetStringAttributeAsBstr(ui::AX_ATTR_URL, &target))) {
- target = SysAllocString(L"");
- }
- DCHECK(target);
- anchor_target->vt = VT_BSTR;
- anchor_target->bstrVal = target;
-
- // Returning S_FALSE is not mentioned in the IA2 Spec, but it might have been
- // an oversight.
- if (!SysStringLen(target))
- return S_FALSE;
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_startIndex(long* index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_START_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active() || !IsHyperlink())
- return E_FAIL;
-
- if (!index)
- return E_INVALIDARG;
-
- int32_t hypertext_offset = 0;
- auto* parent = PlatformGetParent();
- if (parent) {
- hypertext_offset =
- ToBrowserAccessibilityWin(parent)->GetHypertextOffsetFromChild(*this);
- }
- *index = static_cast<LONG>(hypertext_offset);
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_endIndex(long* index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_END_INDEX);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- LONG start_index;
- HRESULT hr = get_startIndex(&start_index);
- if (hr == S_OK)
- *index = start_index + 1;
- return hr;
-}
-
-// This method is deprecated in the IA2 Spec.
-STDMETHODIMP BrowserAccessibilityWin::get_valid(boolean* valid) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_VALID);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-//
-// IAccessibleAction partly implemented.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::nActions(long* n_actions) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_N_ACTIONS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!n_actions)
- return E_INVALIDARG;
-
- // |IsHyperlink| is required for |IAccessibleHyperlink::anchor/anchorTarget|
- // to work properly because the |IAccessibleHyperlink| interface inherits from
- // |IAccessibleAction|.
- if (IsHyperlink() || HasIntAttribute(ui::AX_ATTR_ACTION)) {
- *n_actions = 1;
- } else {
- *n_actions = 0;
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::doAction(long action_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_DO_ACTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!HasIntAttribute(ui::AX_ATTR_ACTION) || action_index != 0)
- return E_INVALIDARG;
-
- manager_->DoDefaultAction(*this);
- return S_OK;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::get_description(long action_index, BSTR* description) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_IAACTION_GET_DESCRIPTION);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_keyBinding(long action_index,
- long n_max_bindings,
- BSTR** key_bindings,
- long* n_bindings) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_KEY_BINDING);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_name(long action_index, BSTR* name) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_NAME);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!name)
- return E_INVALIDARG;
-
- int action;
- if (!GetIntAttribute(ui::AX_ATTR_ACTION, &action) || action_index != 0) {
- *name = nullptr;
- return E_INVALIDARG;
- }
-
- base::string16 action_verb =
- ui::ActionToUnlocalizedString(static_cast<ui::AXSupportedAction>(action));
- if (action_verb.empty() || action_verb == L"none") {
- *name = nullptr;
- return S_FALSE;
- }
-
- *name = SysAllocString(action_verb.c_str());
- DCHECK(name);
- return S_OK;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::get_localizedName(long action_index,
- BSTR* localized_name) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCALIZED_NAME);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!localized_name)
- return E_INVALIDARG;
-
- int action;
- if (!GetIntAttribute(ui::AX_ATTR_ACTION, &action) || action_index != 0) {
- *localized_name = nullptr;
- return E_INVALIDARG;
- }
-
- base::string16 action_verb =
- ui::ActionToString(static_cast<ui::AXSupportedAction>(action));
- if (action_verb.empty()) {
- *localized_name = nullptr;
- return S_FALSE;
- }
-
- *localized_name = SysAllocString(action_verb.c_str());
- DCHECK(localized_name);
- return S_OK;
-}
-
-//
-// IAccessibleValue methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_currentValue(VARIANT* value) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CURRENT_VALUE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!value)
- return E_INVALIDARG;
-
- float float_val;
- if (GetFloatAttribute(
- ui::AX_ATTR_VALUE_FOR_RANGE, &float_val)) {
- value->vt = VT_R8;
- value->dblVal = float_val;
- return S_OK;
- }
-
- value->vt = VT_EMPTY;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_minimumValue(VARIANT* value) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_MINIMUM_VALUE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!value)
- return E_INVALIDARG;
-
- float float_val;
- if (GetFloatAttribute(ui::AX_ATTR_MIN_VALUE_FOR_RANGE,
- &float_val)) {
- value->vt = VT_R8;
- value->dblVal = float_val;
- return S_OK;
- }
-
- value->vt = VT_EMPTY;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_maximumValue(VARIANT* value) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_MAXIMUM_VALUE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!value)
- return E_INVALIDARG;
-
- float float_val;
- if (GetFloatAttribute(ui::AX_ATTR_MAX_VALUE_FOR_RANGE,
- &float_val)) {
- value->vt = VT_R8;
- value->dblVal = float_val;
- return S_OK;
- }
-
- value->vt = VT_EMPTY;
- return S_FALSE;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::setCurrentValue(VARIANT new_value) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SET_CURRENT_VALUE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- // TODO(dmazzoni): Implement this.
- return E_NOTIMPL;
-}
-
-//
-// ISimpleDOMDocument methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_URL(BSTR* url) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_URL);
- if (!instance_active())
- return E_FAIL;
-
- if (!url)
- return E_INVALIDARG;
-
- if (this != manager_->GetRoot())
- return E_FAIL;
-
- std::string str = manager_->GetTreeData().url;
- if (str.empty())
- return S_FALSE;
-
- *url = SysAllocString(base::UTF8ToUTF16(str).c_str());
- DCHECK(*url);
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_title(BSTR* title) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TITLE);
- if (!instance_active())
- return E_FAIL;
-
- if (!title)
- return E_INVALIDARG;
-
- std::string str = manager_->GetTreeData().title;
- if (str.empty())
- return S_FALSE;
-
- *title = SysAllocString(base::UTF8ToUTF16(str).c_str());
- DCHECK(*title);
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_mimeType(BSTR* mime_type) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_MIME_TYPE);
- if (!instance_active())
- return E_FAIL;
-
- if (!mime_type)
- return E_INVALIDARG;
-
- std::string str = manager_->GetTreeData().mimetype;
- if (str.empty())
- return S_FALSE;
-
- *mime_type = SysAllocString(base::UTF8ToUTF16(str).c_str());
- DCHECK(*mime_type);
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_docType(BSTR* doc_type) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_DOC_TYPE);
- if (!instance_active())
- return E_FAIL;
-
- if (!doc_type)
- return E_INVALIDARG;
-
- std::string str = manager_->GetTreeData().doctype;
- if (str.empty())
- return S_FALSE;
-
- *doc_type = SysAllocString(base::UTF8ToUTF16(str).c_str());
- DCHECK(*doc_type);
-
- return S_OK;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::get_nameSpaceURIForID(short name_space_id,
- BSTR* name_space_uri) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_NAMESPACE_URI_FOR_ID);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::put_alternateViewMediaTypes(
- BSTR* comma_separated_media_types) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_PUT_ALTERNATE_VIEW_MEDIA_TYPES);
- return E_NOTIMPL;
-}
-
-//
-// ISimpleDOMNode methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_nodeInfo(
- BSTR* node_name,
- short* name_space_id,
- BSTR* node_value,
- unsigned int* num_children,
- unsigned int* unique_id,
- unsigned short* node_type) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_NODE_INFO);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!node_name || !name_space_id || !node_value || !num_children ||
- !unique_id || !node_type) {
- return E_INVALIDARG;
- }
-
- base::string16 tag;
- if (GetString16Attribute(ui::AX_ATTR_HTML_TAG, &tag))
- *node_name = SysAllocString(tag.c_str());
- else
- *node_name = nullptr;
-
- *name_space_id = 0;
- *node_value = SysAllocString(value().c_str());
- *num_children = PlatformChildCount();
- *unique_id = -this->unique_id();
-
- if (GetRole() == ui::AX_ROLE_ROOT_WEB_AREA ||
- GetRole() == ui::AX_ROLE_WEB_AREA) {
- *node_type = NODETYPE_DOCUMENT;
- } else if (IsTextOnlyObject()) {
- *node_type = NODETYPE_TEXT;
- } else {
- *node_type = NODETYPE_ELEMENT;
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_attributes(
- unsigned short max_attribs,
- BSTR* attrib_names,
- short* name_space_id,
- BSTR* attrib_values,
- unsigned short* num_attribs) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ISIMPLEDOMNODE_GET_ATTRIBUTES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!attrib_names || !name_space_id || !attrib_values || !num_attribs)
- return E_INVALIDARG;
-
- *num_attribs = max_attribs;
- if (*num_attribs > GetHtmlAttributes().size())
- *num_attribs = GetHtmlAttributes().size();
-
- for (unsigned short i = 0; i < *num_attribs; ++i) {
- attrib_names[i] = SysAllocString(
- base::UTF8ToUTF16(GetHtmlAttributes()[i].first).c_str());
- name_space_id[i] = 0;
- attrib_values[i] = SysAllocString(
- base::UTF8ToUTF16(GetHtmlAttributes()[i].second).c_str());
- }
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_attributesForNames(
- unsigned short num_attribs,
- BSTR* attrib_names,
- short* name_space_id,
- BSTR* attrib_values) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ATTRIBUTES_FOR_NAMES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!attrib_names || !name_space_id || !attrib_values)
- return E_INVALIDARG;
-
- for (unsigned short i = 0; i < num_attribs; ++i) {
- name_space_id[i] = 0;
- bool found = false;
- std::string name = base::UTF16ToUTF8((LPCWSTR)attrib_names[i]);
- for (unsigned int j = 0; j < GetHtmlAttributes().size(); ++j) {
- if (GetHtmlAttributes()[j].first == name) {
- attrib_values[i] = SysAllocString(
- base::UTF8ToUTF16(GetHtmlAttributes()[j].second).c_str());
- found = true;
- break;
- }
- }
- if (!found) {
- attrib_values[i] = NULL;
- }
- }
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_computedStyle(
- unsigned short max_style_properties,
- boolean use_alternate_view,
- BSTR* style_properties,
- BSTR* style_values,
- unsigned short *num_style_properties) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COMPUTED_STYLE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!style_properties || !style_values)
- return E_INVALIDARG;
-
- // We only cache a single style property for now: DISPLAY
-
- base::string16 display;
- if (max_style_properties == 0 ||
- !GetString16Attribute(ui::AX_ATTR_DISPLAY, &display)) {
- *num_style_properties = 0;
- return S_OK;
- }
-
- *num_style_properties = 1;
- style_properties[0] = SysAllocString(L"display");
- style_values[0] = SysAllocString(display.c_str());
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_computedStyleForProperties(
- unsigned short num_style_properties,
- boolean use_alternate_view,
- BSTR* style_properties,
- BSTR* style_values) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COMPUTED_STYLE_FOR_PROPERTIES);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!style_properties || !style_values)
- return E_INVALIDARG;
-
- // We only cache a single style property for now: DISPLAY
-
- for (unsigned short i = 0; i < num_style_properties; ++i) {
- base::string16 name = base::ToLowerASCII(
- reinterpret_cast<const base::char16*>(style_properties[i]));
- if (name == L"display") {
- base::string16 display = GetString16Attribute(
- ui::AX_ATTR_DISPLAY);
- style_values[i] = SysAllocString(display.c_str());
- } else {
- style_values[i] = NULL;
- }
- }
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::scrollTo(boolean placeTopLeft) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ISIMPLEDOMNODE_SCROLL_TO);
- return scrollTo(placeTopLeft ?
- IA2_SCROLL_TYPE_TOP_LEFT : IA2_SCROLL_TYPE_ANYWHERE);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_parentNode(ISimpleDOMNode** node) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PARENT_NODE);
- if (!instance_active())
- return E_FAIL;
-
- if (!node)
- return E_INVALIDARG;
-
- *node = ToBrowserAccessibilityWin(PlatformGetParent())->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_firstChild(ISimpleDOMNode** node) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_FIRST_CHILD);
- if (!instance_active())
- return E_FAIL;
-
- if (!node)
- return E_INVALIDARG;
-
- if (PlatformChildCount() == 0) {
- *node = NULL;
- return S_FALSE;
- }
-
- *node = ToBrowserAccessibilityWin(PlatformGetChild(0))->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_lastChild(ISimpleDOMNode** node) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LAST_CHILD);
- if (!instance_active())
- return E_FAIL;
-
- if (!node)
- return E_INVALIDARG;
-
- if (PlatformChildCount() == 0) {
- *node = NULL;
- return S_FALSE;
- }
-
- *node = ToBrowserAccessibilityWin(
- PlatformGetChild(PlatformChildCount() - 1))->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_previousSibling(
- ISimpleDOMNode** node) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PREVIOUS_SIBLING);
- if (!instance_active())
- return E_FAIL;
-
- if (!node)
- return E_INVALIDARG;
-
- if (!PlatformGetParent() || GetIndexInParent() <= 0) {
- *node = NULL;
- return S_FALSE;
- }
-
- *node = ToBrowserAccessibilityWin(
- PlatformGetParent()->InternalGetChild(GetIndexInParent() - 1))
- ->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_nextSibling(ISimpleDOMNode** node) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_NEXT_SIBLING);
- if (!instance_active())
- return E_FAIL;
-
- if (!node)
- return E_INVALIDARG;
-
- if (!PlatformGetParent() || GetIndexInParent() < 0 ||
- GetIndexInParent() >=
- static_cast<int>(PlatformGetParent()->InternalChildCount()) - 1) {
- *node = NULL;
- return S_FALSE;
- }
-
- *node = ToBrowserAccessibilityWin(
- PlatformGetParent()->InternalGetChild(GetIndexInParent() + 1))
- ->NewReference();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_childAt(
- unsigned int child_index,
- ISimpleDOMNode** node) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CHILD_AT);
- if (!instance_active())
- return E_FAIL;
-
- if (!node)
- return E_INVALIDARG;
-
- if (child_index >= PlatformChildCount())
- return E_INVALIDARG;
-
- BrowserAccessibility* child = PlatformGetChild(child_index);
- if (!child) {
- *node = NULL;
- return S_FALSE;
- }
-
- *node = ToBrowserAccessibilityWin(child)->NewReference();
- return S_OK;
-}
-
-// We only support this method for retrieving MathML content.
-STDMETHODIMP BrowserAccessibilityWin::get_innerHTML(BSTR* innerHTML) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_INNER_HTML);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (GetRole() != ui::AX_ROLE_MATH)
- return E_NOTIMPL;
- if (!instance_active())
- return E_FAIL;
-
- base::string16 inner_html = GetString16Attribute(ui::AX_ATTR_INNER_HTML);
- *innerHTML = SysAllocString(inner_html.c_str());
- DCHECK(*innerHTML);
- return S_OK;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::get_localInterface(void** local_interface) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCAL_INTERFACE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_language(BSTR* language) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LANGUAGE);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!language)
- return E_INVALIDARG;
- *language = nullptr;
-
- if (!instance_active())
- return E_FAIL;
-
- base::string16 lang = GetInheritedString16Attribute(ui::AX_ATTR_LANGUAGE);
- if (lang.empty())
- lang = L"en-US";
-
- *language = SysAllocString(lang.c_str());
- DCHECK(*language);
- return S_OK;
-}
-
-//
-// ISimpleDOMText methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::get_domText(BSTR* dom_text) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_DOM_TEXT);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!instance_active())
- return E_FAIL;
-
- if (!dom_text)
- return E_INVALIDARG;
-
- return GetStringAttributeAsBstr(
- ui::AX_ATTR_NAME, dom_text);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_clippedSubstringBounds(
- unsigned int start_index,
- unsigned int end_index,
- int* out_x,
- int* out_y,
- int* out_width,
- int* out_height) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CLIPPED_SUBSTRING_BOUNDS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- // TODO(dmazzoni): fully support this API by intersecting the
- // rect with the container's rect.
- return get_unclippedSubstringBounds(
- start_index, end_index, out_x, out_y, out_width, out_height);
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_unclippedSubstringBounds(
- unsigned int start_index,
- unsigned int end_index,
- int* out_x,
- int* out_y,
- int* out_width,
- int* out_height) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_UNCLIPPED_SUBSTRING_BOUNDS);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- if (!out_x || !out_y || !out_width || !out_height)
- return E_INVALIDARG;
-
- unsigned int text_length = static_cast<unsigned int>(GetText().size());
- if (start_index > text_length || end_index > text_length ||
- start_index > end_index) {
- return E_INVALIDARG;
- }
-
- gfx::Rect bounds = GetScreenBoundsForRange(
- start_index, end_index - start_index);
- *out_x = bounds.x();
- *out_y = bounds.y();
- *out_width = bounds.width();
- *out_height = bounds.height();
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::scrollToSubstring(
- unsigned int start_index,
- unsigned int end_index) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_TO_SUBSTRING);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes |
- AccessibilityMode::kInlineTextBoxes);
- if (!instance_active())
- return E_FAIL;
-
- unsigned int text_length = static_cast<unsigned int>(GetText().size());
- if (start_index > text_length || end_index > text_length ||
- start_index > end_index) {
- return E_INVALIDARG;
- }
-
- manager_->ScrollToMakeVisible(
- *this, GetPageBoundsForRange(start_index, end_index - start_index));
-
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_fontFamily(BSTR* font_family) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_FONT_FAMILY);
- AddAccessibilityModeFlags(kScreenReaderAndHTMLAccessibilityModes);
- if (!font_family)
- return E_INVALIDARG;
- *font_family = nullptr;
-
- if (!instance_active())
- return E_FAIL;
-
- base::string16 family =
- GetInheritedString16Attribute(ui::AX_ATTR_FONT_FAMILY);
- if (family.empty())
- return S_FALSE;
-
- *font_family = SysAllocString(family.c_str());
- DCHECK(*font_family);
- return S_OK;
-}
-
-//
-// IServiceProvider methods.
-//
-
-STDMETHODIMP BrowserAccessibilityWin::QueryService(REFGUID guid_service,
- REFIID riid,
- void** object) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_QUERY_SERVICE);
- if (!instance_active())
- return E_FAIL;
-
- if (guid_service == GUID_IAccessibleContentDocument) {
- // Special Mozilla extension: return the accessible for the root document.
- // Screen readers use this to distinguish between a document loaded event
- // on the root document vs on an iframe.
- BrowserAccessibility* node = this;
- while (node->PlatformGetParent())
- node = node->PlatformGetParent()->manager()->GetRoot();
- return ToBrowserAccessibilityWin(node)->QueryInterface(
- IID_IAccessible2, object);
- }
-
- if (guid_service == IID_IAccessible ||
- guid_service == IID_IAccessible2 ||
- guid_service == IID_IAccessibleAction ||
- guid_service == IID_IAccessibleApplication ||
- guid_service == IID_IAccessibleHyperlink ||
- guid_service == IID_IAccessibleHypertext ||
- guid_service == IID_IAccessibleImage ||
- guid_service == IID_IAccessibleTable ||
- guid_service == IID_IAccessibleTable2 ||
- guid_service == IID_IAccessibleTableCell ||
- guid_service == IID_IAccessibleText ||
- guid_service == IID_IAccessibleValue ||
- guid_service == IID_ISimpleDOMDocument ||
- guid_service == IID_ISimpleDOMNode ||
- guid_service == IID_ISimpleDOMText ||
- guid_service == GUID_ISimpleDOM) {
- return QueryInterface(riid, object);
- }
-
- // We only support the IAccessibleEx interface on Windows 8 and above. This
- // is needed for the on-screen Keyboard to show up in metro mode, when the
- // user taps an editable portion on the page.
- // All methods in the IAccessibleEx interface are unimplemented.
- if (riid == IID_IAccessibleEx &&
- base::win::GetVersion() >= base::win::VERSION_WIN8) {
- return QueryInterface(riid, object);
- }
-
- *object = NULL;
- return E_FAIL;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::GetObjectForChild(long child_id, IAccessibleEx** ret) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_OBJECT_FOR_CHILD);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::GetIAccessiblePair(IAccessible** acc, long* child_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IACCESSIBLE_PAIR);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::GetRuntimeId(SAFEARRAY** runtime_id) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_RUNTIME_ID);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP
-BrowserAccessibilityWin::ConvertReturnedElement(
- IRawElementProviderSimple* element,
- IAccessibleEx** acc) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_CONVERT_RETURNED_ELEMENT);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::GetPatternProvider(PATTERNID id,
- IUnknown** provider) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PATTERN_PROVIDER);
- DVLOG(1) << "In Function: " << __func__ << " for pattern id: " << id;
- if (id == UIA_ValuePatternId || id == UIA_TextPatternId) {
- if (HasState(ui::AX_STATE_EDITABLE)) {
- DVLOG(1) << "Returning UIA text provider";
- base::win::UIATextProvider::CreateTextProvider(
- GetValueText(), true, provider);
- return S_OK;
- }
- }
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::GetPropertyValue(PROPERTYID id,
- VARIANT* ret) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PROPERTY_VALUE);
- DVLOG(1) << "In Function: " << __func__ << " for property id: " << id;
- V_VT(ret) = VT_EMPTY;
- if (id == UIA_ControlTypePropertyId) {
- if (HasState(ui::AX_STATE_EDITABLE)) {
- V_VT(ret) = VT_I4;
- ret->lVal = UIA_EditControlTypeId;
- DVLOG(1) << "Returning Edit control type";
- } else {
- DVLOG(1) << "Returning empty control type";
- }
- }
- return S_OK;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_ProviderOptions(
- ProviderOptions* ret) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PROVIDER_OPTIONS);
- return E_NOTIMPL;
-}
-
-STDMETHODIMP BrowserAccessibilityWin::get_HostRawElementProvider(
- IRawElementProviderSimple** provider) {
- WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_HOST_RAW_ELEMENT_PROVIDER);
- return E_NOTIMPL;
-}
-
-//
-// CComObjectRootEx methods.
-//
-
-// static
-HRESULT WINAPI BrowserAccessibilityWin::InternalQueryInterface(
- void* this_ptr,
- const _ATL_INTMAP_ENTRY* entries,
- REFIID iid,
- void** object) {
- BrowserAccessibilityWin* accessibility =
- reinterpret_cast<BrowserAccessibilityWin*>(this_ptr);
- int32_t ia_role = accessibility->ia_role();
- if (iid == IID_IAccessibleImage) {
- if (ia_role != ROLE_SYSTEM_GRAPHIC) {
- *object = NULL;
- return E_NOINTERFACE;
- }
- } else if (iid == IID_IAccessibleTable || iid == IID_IAccessibleTable2) {
- if (ia_role != ROLE_SYSTEM_TABLE) {
- *object = NULL;
- return E_NOINTERFACE;
- }
- } else if (iid == IID_IAccessibleTableCell) {
- if (!accessibility->IsCellOrTableHeaderRole()) {
- *object = NULL;
- return E_NOINTERFACE;
- }
- } else if (iid == IID_IAccessibleValue) {
- if (ia_role != ROLE_SYSTEM_PROGRESSBAR &&
- ia_role != ROLE_SYSTEM_SCROLLBAR &&
- ia_role != ROLE_SYSTEM_SLIDER) {
- *object = NULL;
- return E_NOINTERFACE;
- }
- } else if (iid == IID_ISimpleDOMDocument) {
- if (ia_role != ROLE_SYSTEM_DOCUMENT) {
- *object = NULL;
- return E_NOINTERFACE;
- }
- } else if (iid == IID_IAccessibleHyperlink) {
- auto* ax_object =
- reinterpret_cast<const BrowserAccessibilityWin*>(this_ptr);
- if (!ax_object || !ax_object->IsHyperlink()) {
- *object = nullptr;
- return E_NOINTERFACE;
- }
- }
-
- return CComObjectRootBase::InternalQueryInterface(
- this_ptr, entries, iid, object);
-}
-
-void BrowserAccessibilityWin::ComputeStylesIfNeeded() {
- if (!offset_to_text_attributes().empty())
- return;
-
- std::map<int, std::vector<base::string16>> attributes_map;
- if (PlatformIsLeaf() || IsSimpleTextControl()) {
- attributes_map[0] = ComputeTextAttributes();
- std::map<int, std::vector<base::string16>> spelling_attributes =
- GetSpellingAttributes();
- for (auto& spelling_attribute : spelling_attributes) {
- auto attributes_iterator = attributes_map.find(spelling_attribute.first);
- if (attributes_iterator == attributes_map.end()) {
- attributes_map[spelling_attribute.first] =
- std::move(spelling_attribute.second);
- } else {
- std::vector<base::string16>& existing_attributes =
- attributes_iterator->second;
-
- // There might be a spelling attribute already in the list of text
- // attributes, originating from "aria-invalid".
- auto existing_spelling_attribute =
- std::find(existing_attributes.begin(), existing_attributes.end(),
- L"invalid:false");
- if (existing_spelling_attribute != existing_attributes.end())
- existing_attributes.erase(existing_spelling_attribute);
-
- existing_attributes.insert(existing_attributes.end(),
- spelling_attribute.second.begin(),
- spelling_attribute.second.end());
- }
- }
- win_attributes_->offset_to_text_attributes.swap(attributes_map);
- return;
- }
-
- int start_offset = 0;
- for (size_t i = 0; i < PlatformChildCount(); ++i) {
- auto* child = ToBrowserAccessibilityWin(PlatformGetChild(i));
- DCHECK(child);
- std::vector<base::string16> attributes(child->ComputeTextAttributes());
-
- if (attributes_map.empty()) {
- attributes_map[start_offset] = attributes;
- } else {
- // Only add the attributes for this child if we are at the start of a new
- // style span.
- std::vector<base::string16> previous_attributes =
- attributes_map.rbegin()->second;
- if (!std::equal(attributes.begin(), attributes.end(),
- previous_attributes.begin())) {
- attributes_map[start_offset] = attributes;
- }
- }
-
- if (child->IsTextOnlyObject())
- start_offset += child->GetText().length();
- else
- start_offset += 1;
- }
-
- win_attributes_->offset_to_text_attributes.swap(attributes_map);
-}
-
-// |offset| could either be a text character or a child index in case of
-// non-text objects.
-// TODO(nektar): Remove this function once selection bugs are fixed in Blink.
-BrowserAccessibilityWin::AXPlatformPositionInstance
-BrowserAccessibilityWin::CreatePositionForSelectionAt(int offset) const {
- if (!IsNativeTextControl() && !IsTextOnlyObject()) {
- DCHECK(manager_);
- const BrowserAccessibilityWin* child = this;
- // TODO(nektar): Make parents of text-only objects not include the text of
- // children in their hypertext.
- for (size_t i = 0; i < InternalChildCount(); ++i) {
- int new_offset = offset;
- child = ToBrowserAccessibilityWin(InternalGetChild(i));
- DCHECK(child);
- if (child->IsTextOnlyObject()) {
- new_offset -= child->GetText().length();
- } else {
- new_offset -= 1;
- }
- if (new_offset <= 0)
- break;
- offset = new_offset;
- }
- AXPlatformPositionInstance position =
- AXPlatformPosition::CreateTextPosition(manager_->ax_tree_id(),
- child->GetId(), offset,
- ui::AX_TEXT_AFFINITY_DOWNSTREAM)
- ->AsLeafTextPosition();
- if (position->GetAnchor() &&
- position->GetAnchor()->GetRole() == ui::AX_ROLE_INLINE_TEXT_BOX) {
- return position->CreateParentPosition();
- }
- return position;
- }
- return CreatePositionAt(offset);
-}
-
-base::string16 BrowserAccessibilityWin::GetText() const {
- if (PlatformIsChildOfLeaf())
- return BrowserAccessibility::GetText();
- return win_attributes_->hypertext;
-}
-
-//
-// Private methods.
-//
-
-void BrowserAccessibilityWin::UpdateStep1ComputeWinAttributes() {
- // Swap win_attributes_ to old_win_attributes_, allowing us to see
- // exactly what changed and fire appropriate events. Note that
- // old_win_attributes_ is cleared at the end of UpdateStep3FireEvents.
- old_win_attributes_.swap(win_attributes_);
- win_attributes_.reset(new WinAttributes());
-
- InitRoleAndState();
-
- win_attributes_->ia2_attributes.clear();
-
- // Expose some HTLM and ARIA attributes in the IAccessible2 attributes string.
- // "display", "tag", and "xml-roles" have somewhat unusual names for
- // historical reasons. Aside from that virtually every ARIA attribute
- // is exposed in a really straightforward way, i.e. "aria-foo" is exposed
- // as "foo".
- StringAttributeToIA2(ui::AX_ATTR_DISPLAY, "display");
- StringAttributeToIA2(ui::AX_ATTR_HTML_TAG, "tag");
- StringAttributeToIA2(ui::AX_ATTR_ROLE, "xml-roles");
-
- StringAttributeToIA2(ui::AX_ATTR_AUTO_COMPLETE, "autocomplete");
- StringAttributeToIA2(ui::AX_ATTR_ROLE_DESCRIPTION, "roledescription");
- StringAttributeToIA2(ui::AX_ATTR_KEY_SHORTCUTS, "keyshortcuts");
-
- IntAttributeToIA2(ui::AX_ATTR_HIERARCHICAL_LEVEL, "level");
- IntAttributeToIA2(ui::AX_ATTR_SET_SIZE, "setsize");
- IntAttributeToIA2(ui::AX_ATTR_POS_IN_SET, "posinset");
-
- if (ia_role() == ROLE_SYSTEM_CHECKBUTTON ||
- ia_role() == ROLE_SYSTEM_RADIOBUTTON ||
- ia2_role() == IA2_ROLE_CHECK_MENU_ITEM ||
- ia2_role() == IA2_ROLE_RADIO_MENU_ITEM ||
- ia2_role() == IA2_ROLE_TOGGLE_BUTTON) {
- win_attributes_->ia2_attributes.push_back(L"checkable:true");
- }
-
- // Expose live region attributes.
- StringAttributeToIA2(ui::AX_ATTR_LIVE_STATUS, "live");
- StringAttributeToIA2(ui::AX_ATTR_LIVE_RELEVANT, "relevant");
- BoolAttributeToIA2(ui::AX_ATTR_LIVE_ATOMIC, "atomic");
- BoolAttributeToIA2(ui::AX_ATTR_LIVE_BUSY, "busy");
-
- // Expose container live region attributes.
- StringAttributeToIA2(ui::AX_ATTR_CONTAINER_LIVE_STATUS,
- "container-live");
- StringAttributeToIA2(ui::AX_ATTR_CONTAINER_LIVE_RELEVANT,
- "container-relevant");
- BoolAttributeToIA2(ui::AX_ATTR_CONTAINER_LIVE_ATOMIC,
- "container-atomic");
- BoolAttributeToIA2(ui::AX_ATTR_CONTAINER_LIVE_BUSY,
- "container-busy");
-
- // Expose the non-standard explicit-name IA2 attribute.
- int name_from;
- if (GetIntAttribute(ui::AX_ATTR_NAME_FROM, &name_from) &&
- name_from != ui::AX_NAME_FROM_CONTENTS) {
- win_attributes_->ia2_attributes.push_back(L"explicit-name:true");
- }
-
- // Expose the aria-current attribute.
- int32_t aria_current_state;
- if (GetIntAttribute(ui::AX_ATTR_ARIA_CURRENT_STATE, &aria_current_state)) {
- switch (static_cast<ui::AXAriaCurrentState>(aria_current_state)) {
- case ui::AX_ARIA_CURRENT_STATE_NONE:
- break;
- case ui::AX_ARIA_CURRENT_STATE_FALSE:
- win_attributes_->ia2_attributes.push_back(L"current:false");
- break;
- case ui::AX_ARIA_CURRENT_STATE_TRUE:
- win_attributes_->ia2_attributes.push_back(L"current:true");
- break;
- case ui::AX_ARIA_CURRENT_STATE_PAGE:
- win_attributes_->ia2_attributes.push_back(L"current:page");
- break;
- case ui::AX_ARIA_CURRENT_STATE_STEP:
- win_attributes_->ia2_attributes.push_back(L"current:step");
- break;
- case ui::AX_ARIA_CURRENT_STATE_LOCATION:
- win_attributes_->ia2_attributes.push_back(L"current:location");
- break;
- case ui::AX_ARIA_CURRENT_STATE_DATE:
- win_attributes_->ia2_attributes.push_back(L"current:date");
- break;
- case ui::AX_ARIA_CURRENT_STATE_TIME:
- win_attributes_->ia2_attributes.push_back(L"current:time");
- break;
- }
- }
-
- // Expose table cell index.
- if (IsCellOrTableHeaderRole()) {
- BrowserAccessibility* table = PlatformGetParent();
- while (table && !table->IsTableLikeRole())
- table = table->PlatformGetParent();
- if (table) {
- const std::vector<int32_t>& unique_cell_ids =
- table->GetIntListAttribute(ui::AX_ATTR_UNIQUE_CELL_IDS);
- for (size_t i = 0; i < unique_cell_ids.size(); ++i) {
- if (unique_cell_ids[i] == GetId()) {
- win_attributes_->ia2_attributes.push_back(
- base::string16(L"table-cell-index:") + base::IntToString16(i));
- }
- }
- }
- }
-
- // Expose aria-colcount and aria-rowcount in a table, grid or treegrid.
- if (IsTableLikeRole()) {
- IntAttributeToIA2(ui::AX_ATTR_ARIA_COLUMN_COUNT, "colcount");
- IntAttributeToIA2(ui::AX_ATTR_ARIA_ROW_COUNT, "rowcount");
- }
-
- // Expose aria-colindex and aria-rowindex in a cell or row.
- if (IsCellOrTableHeaderRole() || GetRole() == ui::AX_ROLE_ROW) {
- if (GetRole() != ui::AX_ROLE_ROW)
- IntAttributeToIA2(ui::AX_ATTR_ARIA_CELL_COLUMN_INDEX, "colindex");
- IntAttributeToIA2(ui::AX_ATTR_ARIA_CELL_ROW_INDEX, "rowindex");
- }
-
- // Expose row or column header sort direction.
- int32_t sort_direction;
- if ((ia_role() == ROLE_SYSTEM_COLUMNHEADER ||
- ia_role() == ROLE_SYSTEM_ROWHEADER) &&
- GetIntAttribute(ui::AX_ATTR_SORT_DIRECTION, &sort_direction)) {
- switch (static_cast<ui::AXSortDirection>(sort_direction)) {
- case ui::AX_SORT_DIRECTION_NONE:
- break;
- case ui::AX_SORT_DIRECTION_UNSORTED:
- win_attributes_->ia2_attributes.push_back(L"sort:none");
- break;
- case ui::AX_SORT_DIRECTION_ASCENDING:
- win_attributes_->ia2_attributes.push_back(L"sort:ascending");
- break;
- case ui::AX_SORT_DIRECTION_DESCENDING:
- win_attributes_->ia2_attributes.push_back(L"sort:descending");
- break;
- case ui::AX_SORT_DIRECTION_OTHER:
- win_attributes_->ia2_attributes.push_back(L"sort:other");
- break;
- }
- }
-
- win_attributes_->name = GetString16Attribute(ui::AX_ATTR_NAME);
- win_attributes_->description = GetString16Attribute(ui::AX_ATTR_DESCRIPTION);
- StringAttributeToIA2(ui::AX_ATTR_PLACEHOLDER, "placeholder");
-
- base::string16 value = GetValue();
- // On Windows, the value of a document should be its url.
- if (GetRole() == ui::AX_ROLE_ROOT_WEB_AREA ||
- GetRole() == ui::AX_ROLE_WEB_AREA) {
- value = base::UTF8ToUTF16(manager_->GetTreeData().url);
- }
- // If this doesn't have a value and is linked then set its value to the url
- // attribute. This allows screen readers to read an empty link's destination.
- if (value.empty() && (ia_state() & STATE_SYSTEM_LINKED))
- value = GetString16Attribute(ui::AX_ATTR_URL);
- win_attributes_->value = value;
-
- ClearOwnRelations();
- AddBidirectionalRelations(IA2_RELATION_CONTROLLER_FOR,
- IA2_RELATION_CONTROLLED_BY,
- ui::AX_ATTR_CONTROLS_IDS);
- AddBidirectionalRelations(IA2_RELATION_DESCRIBED_BY,
- IA2_RELATION_DESCRIPTION_FOR,
- ui::AX_ATTR_DESCRIBEDBY_IDS);
- AddBidirectionalRelations(IA2_RELATION_FLOWS_TO, IA2_RELATION_FLOWS_FROM,
- ui::AX_ATTR_FLOWTO_IDS);
- AddBidirectionalRelations(IA2_RELATION_LABELLED_BY, IA2_RELATION_LABEL_FOR,
- ui::AX_ATTR_LABELLEDBY_IDS);
- AddBidirectionalRelations(IA2_RELATION_DETAILS, IA2_RELATION_DETAILS_FOR,
- ui::AX_ATTR_DETAILS_IDS);
-
- int member_of_id;
- if (GetIntAttribute(ui::AX_ATTR_MEMBER_OF_ID, &member_of_id))
- AddRelation(IA2_RELATION_MEMBER_OF, member_of_id);
-
- int error_message_id;
- if (GetIntAttribute(ui::AX_ATTR_ERRORMESSAGE_ID, &error_message_id))
- AddRelation(IA2_RELATION_ERROR_MESSAGE, error_message_id);
-
- // Expose slider value.
- if (ia_role() == ROLE_SYSTEM_PROGRESSBAR ||
- ia_role() == ROLE_SYSTEM_SCROLLBAR ||
- ia_role() == ROLE_SYSTEM_SLIDER) {
- base::string16 value_text = GetValueText();
- SanitizeStringAttributeForIA2(value_text, &value_text);
- win_attributes_->ia2_attributes.push_back(L"valuetext:" + value_text);
- }
-
- UpdateRequiredAttributes();
- // If this is a web area for a presentational iframe, give it a role of
- // something other than DOCUMENT so that the fact that it's a separate doc
- // is not exposed to AT.
- if (IsWebAreaForPresentationalIframe()) {
- win_attributes_->ia_role = ROLE_SYSTEM_GROUPING;
- win_attributes_->ia2_role = ROLE_SYSTEM_GROUPING;
- }
-}
-
-void BrowserAccessibilityWin::UpdateStep2ComputeHypertext() {
- if (IsSimpleTextControl()) {
- win_attributes_->hypertext = value();
- return;
- }
-
- if (!PlatformChildCount()) {
- if (IsRichTextControl()) {
- // We don't want to expose any associated label in IA2 Hypertext.
- return;
- }
- win_attributes_->hypertext = name();
- return;
- }
-
- // Construct the hypertext for this node, which contains the concatenation
- // of all of the static text and widespace of this node's children and an
- // embedded object character for all the other children. Build up a map from
- // the character index of each embedded object character to the id of the
- // child object it points to.
- for (unsigned int i = 0; i < PlatformChildCount(); ++i) {
- auto* child = ToBrowserAccessibilityWin(PlatformGetChild(i));
- DCHECK(child);
- // Similar to Firefox, we don't expose text-only objects in IA2 hypertext.
- if (child->IsTextOnlyObject()) {
- win_attributes_->hypertext += child->name();
- } else {
- int32_t char_offset = static_cast<int32_t>(GetText().size());
- int32_t child_unique_id = child->unique_id();
- int32_t index = hyperlinks().size();
- win_attributes_->hyperlink_offset_to_index[char_offset] = index;
- win_attributes_->hyperlinks.push_back(child_unique_id);
- win_attributes_->hypertext += kEmbeddedCharacter;
- }
- }
-}
-
-void BrowserAccessibilityWin::UpdateStep3FireEvents(bool is_subtree_creation) {
- // Fire an event when a new subtree is created.
- if (is_subtree_creation)
- FireNativeEvent(EVENT_OBJECT_SHOW);
-
- // The rest of the events only fire on changes, not on new objects.
- if (old_win_attributes_->ia_role != 0 ||
- !old_win_attributes_->role_name.empty()) {
- // Fire an event if the name, description, help, or value changes.
- if (name() != old_win_attributes_->name)
- FireNativeEvent(EVENT_OBJECT_NAMECHANGE);
- if (description() != old_win_attributes_->description)
- FireNativeEvent(EVENT_OBJECT_DESCRIPTIONCHANGE);
- if (value() != old_win_attributes_->value)
- FireNativeEvent(EVENT_OBJECT_VALUECHANGE);
- if (ia_state() != old_win_attributes_->ia_state)
- FireNativeEvent(EVENT_OBJECT_STATECHANGE);
-
- // Handle selection being added or removed.
- bool is_selected_now = (ia_state() & STATE_SYSTEM_SELECTED) != 0;
- bool was_selected_before =
- (old_win_attributes_->ia_state & STATE_SYSTEM_SELECTED) != 0;
- if (is_selected_now || was_selected_before) {
- bool multiselect = false;
- if (PlatformGetParent() &&
- PlatformGetParent()->HasState(ui::AX_STATE_MULTISELECTABLE))
- multiselect = true;
-
- if (multiselect) {
- // In a multi-select box, fire SELECTIONADD and SELECTIONREMOVE events.
- if (is_selected_now && !was_selected_before) {
- FireNativeEvent(EVENT_OBJECT_SELECTIONADD);
- } else if (!is_selected_now && was_selected_before) {
- FireNativeEvent(EVENT_OBJECT_SELECTIONREMOVE);
- }
- } else if (is_selected_now && !was_selected_before) {
- // In a single-select box, only fire SELECTION events.
- FireNativeEvent(EVENT_OBJECT_SELECTION);
- }
- }
-
- // Fire an event if this container object has scrolled.
- int sx = 0;
- int sy = 0;
- if (GetIntAttribute(ui::AX_ATTR_SCROLL_X, &sx) &&
- GetIntAttribute(ui::AX_ATTR_SCROLL_Y, &sy)) {
- if (sx != previous_scroll_x_ || sy != previous_scroll_y_)
- FireNativeEvent(EVENT_SYSTEM_SCROLLINGEND);
- previous_scroll_x_ = sx;
- previous_scroll_y_ = sy;
- }
-
- // Fire hypertext-related events.
- int start, old_len, new_len;
- ComputeHypertextRemovedAndInserted(&start, &old_len, &new_len);
- if (old_len > 0) {
- // In-process screen readers may call IAccessibleText::get_oldText
- // in reaction to this event to retrieve the text that was removed.
- FireNativeEvent(IA2_EVENT_TEXT_REMOVED);
- }
- if (new_len > 0) {
- // In-process screen readers may call IAccessibleText::get_newText
- // in reaction to this event to retrieve the text that was inserted.
- FireNativeEvent(IA2_EVENT_TEXT_INSERTED);
- }
-
- // Changing a static text node can affect the IAccessibleText hypertext
- // of the parent node, so force an update on the parent.
- BrowserAccessibilityWin* parent =
- ToBrowserAccessibilityWin(PlatformGetParent());
- if (parent && IsTextOnlyObject() &&
- name() != old_win_attributes_->name) {
- parent->UpdatePlatformAttributes();
- }
- }
-
- old_win_attributes_.reset(nullptr);
-}
-
-void BrowserAccessibilityWin::UpdatePlatformAttributes() {
- UpdateStep1ComputeWinAttributes();
- UpdateStep2ComputeHypertext();
- UpdateStep3FireEvents(false);
-}
-
-void BrowserAccessibilityWin::OnSubtreeWillBeDeleted() {
- FireNativeEvent(EVENT_OBJECT_HIDE);
-}
-
-void BrowserAccessibilityWin::NativeAddReference() {
- AddRef();
-}
-
-void BrowserAccessibilityWin::NativeReleaseReference() {
- Release();
-}
-
-bool BrowserAccessibilityWin::IsNative() const {
- return true;
-}
-
-void BrowserAccessibilityWin::OnLocationChanged() {
- FireNativeEvent(EVENT_OBJECT_LOCATIONCHANGE);
-}
-
-std::vector<base::string16> BrowserAccessibilityWin::ComputeTextAttributes()
- const {
- std::vector<base::string16> attributes;
-
- // We include list markers for now, but there might be other objects that are
- // auto generated.
- // TODO(nektar): Compute what objects are auto-generated in Blink.
- if (GetRole() == ui::AX_ROLE_LIST_MARKER)
- attributes.push_back(L"auto-generated:true");
- else
- attributes.push_back(L"auto-generated:false");
-
- int color;
- base::string16 color_value(L"transparent");
- if (GetIntAttribute(ui::AX_ATTR_BACKGROUND_COLOR, &color)) {
- unsigned int alpha = SkColorGetA(color);
- unsigned int red = SkColorGetR(color);
- unsigned int green = SkColorGetG(color);
- unsigned int blue = SkColorGetB(color);
- if (alpha) {
- color_value = L"rgb(" + base::UintToString16(red) + L',' +
- base::UintToString16(green) + L',' +
- base::UintToString16(blue) + L')';
- }
- }
- SanitizeStringAttributeForIA2(color_value, &color_value);
- attributes.push_back(L"background-color:" + color_value);
-
- if (GetIntAttribute(ui::AX_ATTR_COLOR, &color)) {
- unsigned int red = SkColorGetR(color);
- unsigned int green = SkColorGetG(color);
- unsigned int blue = SkColorGetB(color);
- color_value = L"rgb(" + base::UintToString16(red) + L',' +
- base::UintToString16(green) + L',' +
- base::UintToString16(blue) + L')';
- } else {
- color_value = L"rgb(0,0,0)";
- }
- SanitizeStringAttributeForIA2(color_value, &color_value);
- attributes.push_back(L"color:" + color_value);
-
- base::string16 font_family(
- GetInheritedString16Attribute(ui::AX_ATTR_FONT_FAMILY));
- // Attribute has no default value.
- if (!font_family.empty()) {
- SanitizeStringAttributeForIA2(font_family, &font_family);
- attributes.push_back(L"font-family:" + font_family);
- }
-
- float font_size;
- // Attribute has no default value.
- if (GetFloatAttribute(ui::AX_ATTR_FONT_SIZE, &font_size)) {
- // The IA2 Spec requires the value to be in pt, not in pixels.
- // There are 72 points per inch.
- // We assume that there are 96 pixels per inch on a standard display.
- // TODO(nektar): Figure out the current value of pixels per inch.
- float points = font_size * 72.0 / 96.0;
- attributes.push_back(L"font-size:" +
- base::UTF8ToUTF16(base::DoubleToString(points)) +
- L"pt");
- }
-
- auto text_style =
- static_cast<ui::AXTextStyle>(GetIntAttribute(ui::AX_ATTR_TEXT_STYLE));
- if (text_style == ui::AX_TEXT_STYLE_NONE) {
- attributes.push_back(L"font-style:normal");
- attributes.push_back(L"font-weight:normal");
- } else {
- if (text_style & ui::AX_TEXT_STYLE_ITALIC) {
- attributes.push_back(L"font-style:italic");
- } else {
- attributes.push_back(L"font-style:normal");
- }
-
- if (text_style & ui::AX_TEXT_STYLE_BOLD) {
- attributes.push_back(L"font-weight:bold");
- } else {
- attributes.push_back(L"font-weight:normal");
- }
- }
-
- auto invalid_state = static_cast<ui::AXInvalidState>(
- GetIntAttribute(ui::AX_ATTR_INVALID_STATE));
- switch (invalid_state) {
- case ui::AX_INVALID_STATE_NONE:
- case ui::AX_INVALID_STATE_FALSE:
- attributes.push_back(L"invalid:false");
- break;
- case ui::AX_INVALID_STATE_TRUE:
- attributes.push_back(L"invalid:true");
- break;
- case ui::AX_INVALID_STATE_SPELLING:
- case ui::AX_INVALID_STATE_GRAMMAR: {
- base::string16 spelling_grammar_value;
- if (invalid_state & ui::AX_INVALID_STATE_SPELLING)
- spelling_grammar_value = L"spelling";
- else if (invalid_state & ui::AX_INVALID_STATE_GRAMMAR)
- spelling_grammar_value = L"grammar";
- else
- spelling_grammar_value = L"spelling,grammar";
- attributes.push_back(L"invalid:" + spelling_grammar_value);
- break;
- }
- case ui::AX_INVALID_STATE_OTHER: {
- base::string16 aria_invalid_value;
- if (GetString16Attribute(ui::AX_ATTR_ARIA_INVALID_VALUE,
- &aria_invalid_value)) {
- SanitizeStringAttributeForIA2(aria_invalid_value, &aria_invalid_value);
- attributes.push_back(L"invalid:" + aria_invalid_value);
- } else {
- // Set the attribute to L"true", since we cannot be more specific.
- attributes.push_back(L"invalid:true");
- }
- break;
- }
- }
-
- base::string16 language(GetInheritedString16Attribute(ui::AX_ATTR_LANGUAGE));
- // Default value should be L"en-US".
- if (language.empty()) {
- attributes.push_back(L"language:en-US");
- } else {
- SanitizeStringAttributeForIA2(language, &language);
- attributes.push_back(L"language:" + language);
- }
-
- // TODO(nektar): Add Blink support for the following attributes.
- // Currently set to their default values as dictated by the IA2 Spec.
- attributes.push_back(L"text-line-through-mode:continuous");
- if (text_style & ui::AX_TEXT_STYLE_LINE_THROUGH) {
- // TODO(nektar): Figure out a more specific value.
- attributes.push_back(L"text-line-through-style:solid");
- } else {
- attributes.push_back(L"text-line-through-style:none");
- }
- // Default value must be the empty string.
- attributes.push_back(L"text-line-through-text:");
- if (text_style & ui::AX_TEXT_STYLE_LINE_THROUGH) {
- // TODO(nektar): Figure out a more specific value.
- attributes.push_back(L"text-line-through-type:single");
- } else {
- attributes.push_back(L"text-line-through-type:none");
- }
- attributes.push_back(L"text-line-through-width:auto");
- attributes.push_back(L"text-outline:false");
- attributes.push_back(L"text-position:baseline");
- attributes.push_back(L"text-shadow:none");
- attributes.push_back(L"text-underline-mode:continuous");
- if (text_style & ui::AX_TEXT_STYLE_UNDERLINE) {
- // TODO(nektar): Figure out a more specific value.
- attributes.push_back(L"text-underline-style:solid");
- attributes.push_back(L"text-underline-type:single");
- } else {
- attributes.push_back(L"text-underline-style:none");
- attributes.push_back(L"text-underline-type:none");
- }
- attributes.push_back(L"text-underline-width:auto");
-
- auto text_direction = static_cast<ui::AXTextDirection>(
- GetIntAttribute(ui::AX_ATTR_TEXT_DIRECTION));
- switch (text_direction) {
- case ui::AX_TEXT_DIRECTION_NONE:
- case ui::AX_TEXT_DIRECTION_LTR:
- attributes.push_back(L"writing-mode:lr");
- break;
- case ui::AX_TEXT_DIRECTION_RTL:
- attributes.push_back(L"writing-mode:rl");
- break;
- case ui::AX_TEXT_DIRECTION_TTB:
- attributes.push_back(L"writing-mode:tb");
- break;
- case ui::AX_TEXT_DIRECTION_BTT:
- // Not listed in the IA2 Spec.
- attributes.push_back(L"writing-mode:bt");
- break;
- }
-
- return attributes;
-}
-
-BrowserAccessibilityWin* BrowserAccessibilityWin::NewReference() {
- AddRef();
- return this;
-}
-
-std::map<int, std::vector<base::string16>>
-BrowserAccessibilityWin::GetSpellingAttributes() const {
- std::map<int, std::vector<base::string16>> spelling_attributes;
- if (IsTextOnlyObject()) {
- const std::vector<int32_t>& marker_types =
- GetIntListAttribute(ui::AX_ATTR_MARKER_TYPES);
- const std::vector<int>& marker_starts =
- GetIntListAttribute(ui::AX_ATTR_MARKER_STARTS);
- const std::vector<int>& marker_ends =
- GetIntListAttribute(ui::AX_ATTR_MARKER_ENDS);
- for (size_t i = 0; i < marker_types.size(); ++i) {
- if (!(static_cast<ui::AXMarkerType>(marker_types[i]) &
- ui::AX_MARKER_TYPE_SPELLING))
- continue;
- int start_offset = marker_starts[i];
- int end_offset = marker_ends[i];
- std::vector<base::string16> start_attributes;
- start_attributes.push_back(L"invalid:spelling");
- std::vector<base::string16> end_attributes;
- end_attributes.push_back(L"invalid:false");
- spelling_attributes[start_offset] = start_attributes;
- spelling_attributes[end_offset] = end_attributes;
- }
- }
- if (IsSimpleTextControl()) {
- int start_offset = 0;
- for (const BrowserAccessibility* static_text =
- BrowserAccessibilityManager::NextTextOnlyObject(
- InternalGetChild(0));
- static_text; static_text = static_text->GetNextSibling()) {
- auto* text_win = ToBrowserAccessibilityWin(static_text);
- if (text_win) {
- std::map<int, std::vector<base::string16>> text_spelling_attributes =
- text_win->GetSpellingAttributes();
- for (auto& attribute : text_spelling_attributes) {
- spelling_attributes[start_offset + attribute.first] =
- std::move(attribute.second);
- }
- start_offset += static_cast<int>(text_win->GetText().length());
- }
- }
- }
- return spelling_attributes;
-}
-
-BrowserAccessibilityWin* BrowserAccessibilityWin::GetTargetFromChildID(
- const VARIANT& var_id) {
- if (var_id.vt != VT_I4)
- return nullptr;
-
- LONG child_id = var_id.lVal;
- if (child_id == CHILDID_SELF)
- return this;
-
- if (child_id >= 1 && child_id <= static_cast<LONG>(PlatformChildCount()))
- return ToBrowserAccessibilityWin(PlatformGetChild(child_id - 1));
-
- BrowserAccessibilityWin* child = ToBrowserAccessibilityWin(
- BrowserAccessibility::GetFromUniqueID(-child_id));
- if (child && child->IsDescendantOf(this))
- return child;
-
- return nullptr;
-}
-
-HRESULT BrowserAccessibilityWin::GetStringAttributeAsBstr(
- ui::AXStringAttribute attribute,
- BSTR* value_bstr) {
- base::string16 str;
-
- if (!GetString16Attribute(attribute, &str))
- return S_FALSE;
-
- *value_bstr = SysAllocString(str.c_str());
- DCHECK(*value_bstr);
-
- return S_OK;
-}
-
-// Static
-void BrowserAccessibilityWin::SanitizeStringAttributeForIA2(
- const base::string16& input,
- base::string16* output) {
- DCHECK(output);
- // According to the IA2 Spec, these characters need to be escaped with a
- // backslash: backslash, colon, comma, equals and semicolon.
- // Note that backslash must be replaced first.
- base::ReplaceChars(input, L"\\", L"\\\\", output);
- base::ReplaceChars(*output, L":", L"\\:", output);
- base::ReplaceChars(*output, L",", L"\\,", output);
- base::ReplaceChars(*output, L"=", L"\\=", output);
- base::ReplaceChars(*output, L";", L"\\;", output);
-}
-
-void BrowserAccessibilityWin::SetIA2HypertextSelection(LONG start_offset,
- LONG end_offset) {
- HandleSpecialTextOffset(&start_offset);
- HandleSpecialTextOffset(&end_offset);
- AXPlatformPositionInstance start_position =
- CreatePositionForSelectionAt(static_cast<int>(start_offset));
- AXPlatformPositionInstance end_position =
- CreatePositionForSelectionAt(static_cast<int>(end_offset));
- manager_->SetSelection(AXPlatformRange(start_position->AsTextPosition(),
- end_position->AsTextPosition()));
-}
-
-void BrowserAccessibilityWin::StringAttributeToIA2(
- ui::AXStringAttribute attribute,
- const char* ia2_attr) {
- base::string16 value;
- if (GetString16Attribute(attribute, &value)) {
- SanitizeStringAttributeForIA2(value, &value);
- win_attributes_->ia2_attributes.push_back(
- base::ASCIIToUTF16(ia2_attr) + L":" + value);
- }
-}
-
-void BrowserAccessibilityWin::BoolAttributeToIA2(
- ui::AXBoolAttribute attribute,
- const char* ia2_attr) {
- bool value;
- if (GetBoolAttribute(attribute, &value)) {
- win_attributes_->ia2_attributes.push_back(
- (base::ASCIIToUTF16(ia2_attr) + L":") +
- (value ? L"true" : L"false"));
- }
-}
-
-void BrowserAccessibilityWin::IntAttributeToIA2(
- ui::AXIntAttribute attribute,
- const char* ia2_attr) {
- int value;
- if (GetIntAttribute(attribute, &value)) {
- win_attributes_->ia2_attributes.push_back(
- base::ASCIIToUTF16(ia2_attr) + L":" +
- base::IntToString16(value));
- }
-}
-
-bool BrowserAccessibilityWin::IsHyperlink() const {
- int32_t hyperlink_index = -1;
- auto* parent = PlatformGetParent();
- if (parent) {
- hyperlink_index =
- ToBrowserAccessibilityWin(parent)->GetHyperlinkIndexFromChild(*this);
- }
-
- if (hyperlink_index >= 0)
- return true;
- return false;
-}
-
-BrowserAccessibilityWin*
-BrowserAccessibilityWin::GetHyperlinkFromHypertextOffset(int offset) const {
- std::map<int32_t, int32_t>::iterator iterator =
- hyperlink_offset_to_index().find(offset);
- if (iterator == hyperlink_offset_to_index().end())
- return nullptr;
-
- int32_t index = iterator->second;
- DCHECK_GE(index, 0);
- DCHECK_LT(index, static_cast<int32_t>(hyperlinks().size()));
- int32_t id = hyperlinks()[index];
- BrowserAccessibilityWin* hyperlink =
- ToBrowserAccessibilityWin(GetFromUniqueID(id));
- if (!hyperlink)
- return nullptr;
- return hyperlink;
-}
-
-int32_t BrowserAccessibilityWin::GetHyperlinkIndexFromChild(
- const BrowserAccessibilityWin& child) const {
- if (hyperlinks().empty())
- return -1;
-
- auto iterator =
- std::find(hyperlinks().begin(), hyperlinks().end(), child.unique_id());
- if (iterator == hyperlinks().end())
- return -1;
-
- return static_cast<int32_t>(iterator - hyperlinks().begin());
-}
-
-int32_t BrowserAccessibilityWin::GetHypertextOffsetFromHyperlinkIndex(
- int32_t hyperlink_index) const {
- for (auto& offset_index : hyperlink_offset_to_index()) {
- if (offset_index.second == hyperlink_index)
- return offset_index.first;
- }
-
- return -1;
-}
-
-int32_t BrowserAccessibilityWin::GetHypertextOffsetFromChild(
- const BrowserAccessibilityWin& child) const {
- DCHECK(child.PlatformGetParent() == this);
-
- // Handle the case when we are dealing with a direct text-only child.
- // (Note that this object might be a platform leaf, e.g. an ARIA searchbox,
- // and so |InternalChild...| functions need to be used. Also, direct text-only
- // children should not be present at tree roots and so no cross-tree traversal
- // is necessary.)
- if (child.IsTextOnlyObject()) {
- int32_t hypertextOffset = 0;
- int32_t index_in_parent = child.GetIndexInParent();
- DCHECK_GE(index_in_parent, 0);
- DCHECK_LT(index_in_parent, static_cast<int32_t>(InternalChildCount()));
- for (uint32_t i = 0; i < static_cast<uint32_t>(index_in_parent); ++i) {
- const BrowserAccessibilityWin* sibling =
- ToBrowserAccessibilityWin(InternalGetChild(i));
- DCHECK(sibling);
- if (sibling->IsTextOnlyObject())
- hypertextOffset += sibling->GetText().size();
- else
- ++hypertextOffset;
- }
- return hypertextOffset;
- }
-
- int32_t hyperlink_index = GetHyperlinkIndexFromChild(child);
- if (hyperlink_index < 0)
- return -1;
-
- return GetHypertextOffsetFromHyperlinkIndex(hyperlink_index);
-}
-
-int32_t BrowserAccessibilityWin::GetHypertextOffsetFromDescendant(
- const BrowserAccessibilityWin& descendant) const {
- auto* parent_object =
- ToBrowserAccessibilityWin(descendant.PlatformGetParent());
- auto* current_object = const_cast<BrowserAccessibilityWin*>(&descendant);
- while (parent_object && parent_object != this) {
- current_object = parent_object;
- parent_object =
- ToBrowserAccessibilityWin(current_object->PlatformGetParent());
- }
- if (!parent_object)
- return -1;
-
- return parent_object->GetHypertextOffsetFromChild(*current_object);
-}
-
-int BrowserAccessibilityWin::GetHypertextOffsetFromEndpoint(
- const BrowserAccessibilityWin& endpoint_object,
- int endpoint_offset) const {
- // There are three cases:
- // 1. Either the selection endpoint is inside this object or is an ancestor of
- // of this object. endpoint_offset should be returned.
- // 2. The selection endpoint is a pure descendant of this object. The offset
- // of the character corresponding to the subtree in which the endpoint is
- // located should be returned.
- // 3. The selection endpoint is in a completely different part of the tree.
- // Either 0 or text_length should be returned depending on the direction that
- // one needs to travel to find the endpoint.
-
- // Case 1.
- //
- // IsDescendantOf includes the case when endpoint_object == this.
- if (IsDescendantOf(&endpoint_object))
- return endpoint_offset;
-
- const BrowserAccessibility* common_parent = this;
- int32_t index_in_common_parent = GetIndexInParent();
- while (common_parent && !endpoint_object.IsDescendantOf(common_parent)) {
- index_in_common_parent = common_parent->GetIndexInParent();
- common_parent = common_parent->PlatformGetParent();
- }
- if (!common_parent)
- return -1;
-
- DCHECK_GE(index_in_common_parent, 0);
- DCHECK(!(common_parent->IsTextOnlyObject()));
-
- // Case 2.
- //
- // We already checked in case 1 if our endpoint is inside this object.
- // We can safely assume that it is a descendant or in a completely different
- // part of the tree.
- if (common_parent == this) {
- int32_t hypertext_offset =
- GetHypertextOffsetFromDescendant(endpoint_object);
- if (endpoint_object.PlatformGetParent() == this &&
- endpoint_object.IsTextOnlyObject()) {
- hypertext_offset += endpoint_offset;
- }
-
- return hypertext_offset;
- }
-
- // Case 3.
- //
- // We can safely assume that the endpoint is in another part of the tree or
- // at common parent, and that this object is a descendant of common parent.
- int32_t endpoint_index_in_common_parent = -1;
- for (uint32_t i = 0; i < common_parent->InternalChildCount(); ++i) {
- const BrowserAccessibility* child = common_parent->InternalGetChild(i);
- DCHECK(child);
- if (endpoint_object.IsDescendantOf(child)) {
- endpoint_index_in_common_parent = child->GetIndexInParent();
- break;
- }
- }
- DCHECK_GE(endpoint_index_in_common_parent, 0);
-
- if (endpoint_index_in_common_parent < index_in_common_parent)
- return 0;
- if (endpoint_index_in_common_parent > index_in_common_parent)
- return GetText().size();
-
- NOTREACHED();
- return -1;
-}
-
-int BrowserAccessibilityWin::GetSelectionAnchor() const {
- int32_t anchor_id = manager_->GetTreeData().sel_anchor_object_id;
- const BrowserAccessibilityWin* anchor_object = GetFromID(anchor_id);
- if (!anchor_object)
- return -1;
-
- int anchor_offset = manager_->GetTreeData().sel_anchor_offset;
- return GetHypertextOffsetFromEndpoint(*anchor_object, anchor_offset);
-}
-
-int BrowserAccessibilityWin::GetSelectionFocus() const {
- int32_t focus_id = manager_->GetTreeData().sel_focus_object_id;
- const BrowserAccessibilityWin* focus_object = GetFromID(focus_id);
- if (!focus_object)
- return -1;
-
- int focus_offset = manager_->GetTreeData().sel_focus_offset;
- return GetHypertextOffsetFromEndpoint(*focus_object, focus_offset);
-}
-
-void BrowserAccessibilityWin::GetSelectionOffsets(
- int* selection_start, int* selection_end) const {
- DCHECK(selection_start && selection_end);
-
- if (IsSimpleTextControl() &&
- GetIntAttribute(ui::AX_ATTR_TEXT_SEL_START, selection_start) &&
- GetIntAttribute(ui::AX_ATTR_TEXT_SEL_END, selection_end)) {
- return;
- }
-
- *selection_start = GetSelectionAnchor();
- *selection_end = GetSelectionFocus();
- if (*selection_start < 0 || *selection_end < 0)
- return;
-
- // There are three cases when a selection would start and end on the same
- // character:
- // 1. Anchor and focus are both in a subtree that is to the right of this
- // object.
- // 2. Anchor and focus are both in a subtree that is to the left of this
- // object.
- // 3. Anchor and focus are in a subtree represented by a single embedded
- // object character.
- // Only case 3 refers to a valid selection because cases 1 and 2 fall
- // outside this object in their entirety.
- // Selections that span more than one character are by definition inside this
- // object, so checking them is not necessary.
- if (*selection_start == *selection_end && !HasCaret()) {
- *selection_start = -1;
- *selection_end = -1;
- return;
- }
-
- // The IA2 Spec says that if the largest of the two offsets falls on an
- // embedded object character and if there is a selection in that embedded
- // object, it should be incremented by one so that it points after the
- // embedded object character.
- // This is a signal to AT software that the embedded object is also part of
- // the selection.
- int* largest_offset =
- (*selection_start <= *selection_end) ? selection_end : selection_start;
- BrowserAccessibilityWin* hyperlink =
- GetHyperlinkFromHypertextOffset(*largest_offset);
- if (!hyperlink)
- return;
-
- LONG n_selections = 0;
- HRESULT hr = hyperlink->get_nSelections(&n_selections);
- DCHECK(SUCCEEDED(hr));
- if (n_selections > 0)
- ++(*largest_offset);
-}
-
-base::string16 BrowserAccessibilityWin::GetValueText() {
- float fval;
- base::string16 value = this->value();
-
- if (value.empty() &&
- GetFloatAttribute(ui::AX_ATTR_VALUE_FOR_RANGE, &fval)) {
- value = base::UTF8ToUTF16(base::DoubleToString(fval));
- }
- return value;
-}
-
-bool BrowserAccessibilityWin::IsSameHypertextCharacter(size_t old_char_index,
- size_t new_char_index) {
- CHECK(old_win_attributes_);
-
- // For anything other than the "embedded character", we just compare the
- // characters directly.
- base::char16 old_ch = old_win_attributes_->hypertext[old_char_index];
- base::char16 new_ch = win_attributes_->hypertext[new_char_index];
- if (old_ch != new_ch)
- return false;
- if (old_ch == new_ch && new_ch != kEmbeddedCharacter)
- return true;
-
- // If it's an embedded character, they're only identical if the child id
- // the hyperlink points to is the same.
- std::map<int32_t, int32_t>& old_offset_to_index =
- old_win_attributes_->hyperlink_offset_to_index;
- std::vector<int32_t>& old_hyperlinks = old_win_attributes_->hyperlinks;
- int32_t old_hyperlinks_count = static_cast<int32_t>(old_hyperlinks.size());
- std::map<int32_t, int32_t>::iterator iter;
- iter = old_offset_to_index.find(old_char_index);
- int old_index = (iter != old_offset_to_index.end()) ? iter->second : -1;
- int old_child_id = (old_index >= 0 && old_index < old_hyperlinks_count) ?
- old_hyperlinks[old_index] : -1;
-
- std::map<int32_t, int32_t>& new_offset_to_index =
- win_attributes_->hyperlink_offset_to_index;
- std::vector<int32_t>& new_hyperlinks = win_attributes_->hyperlinks;
- int32_t new_hyperlinks_count = static_cast<int32_t>(new_hyperlinks.size());
- iter = new_offset_to_index.find(new_char_index);
- int new_index = (iter != new_offset_to_index.end()) ? iter->second : -1;
- int new_child_id = (new_index >= 0 && new_index < new_hyperlinks_count) ?
- new_hyperlinks[new_index] : -1;
-
- return old_child_id == new_child_id;
-}
-
-void BrowserAccessibilityWin::ComputeHypertextRemovedAndInserted(
- int* start, int* old_len, int* new_len) {
- CHECK(old_win_attributes_);
-
- *start = 0;
- *old_len = 0;
- *new_len = 0;
-
- const base::string16& old_text = old_win_attributes_->hypertext;
- const base::string16& new_text = GetText();
-
- size_t common_prefix = 0;
- while (common_prefix < old_text.size() &&
- common_prefix < new_text.size() &&
- IsSameHypertextCharacter(common_prefix, common_prefix)) {
- ++common_prefix;
- }
-
- size_t common_suffix = 0;
- while (common_prefix + common_suffix < old_text.size() &&
- common_prefix + common_suffix < new_text.size() &&
- IsSameHypertextCharacter(
- old_text.size() - common_suffix - 1,
- new_text.size() - common_suffix - 1)) {
- ++common_suffix;
- }
-
- *start = common_prefix;
- *old_len = old_text.size() - common_prefix - common_suffix;
- *new_len = new_text.size() - common_prefix - common_suffix;
-}
-
-void BrowserAccessibilityWin::HandleSpecialTextOffset(LONG* offset) {
- if (*offset == IA2_TEXT_OFFSET_LENGTH) {
- *offset = static_cast<LONG>(GetText().length());
- } else if (*offset == IA2_TEXT_OFFSET_CARET) {
- // We shouldn't call |get_caretOffset| here as it affects UMA counts.
- int selection_start, selection_end;
- GetSelectionOffsets(&selection_start, &selection_end);
- *offset = selection_end;
- }
-}
-
-ui::TextBoundaryType BrowserAccessibilityWin::IA2TextBoundaryToTextBoundary(
- IA2TextBoundaryType ia2_boundary) {
- switch(ia2_boundary) {
- case IA2_TEXT_BOUNDARY_CHAR:
- return ui::CHAR_BOUNDARY;
- case IA2_TEXT_BOUNDARY_WORD:
- return ui::WORD_BOUNDARY;
- case IA2_TEXT_BOUNDARY_LINE:
- return ui::LINE_BOUNDARY;
- case IA2_TEXT_BOUNDARY_SENTENCE:
- return ui::SENTENCE_BOUNDARY;
- case IA2_TEXT_BOUNDARY_PARAGRAPH:
- return ui::PARAGRAPH_BOUNDARY;
- case IA2_TEXT_BOUNDARY_ALL:
- return ui::ALL_BOUNDARY;
- }
- NOTREACHED();
- return ui::CHAR_BOUNDARY;
-}
-
-LONG BrowserAccessibilityWin::FindBoundary(
- const base::string16& text,
- IA2TextBoundaryType ia2_boundary,
- LONG start_offset,
- ui::TextBoundaryDirection direction) {
- // If the boundary is relative to the caret, use the selection
- // affinity, otherwise default to downstream affinity.
- ui::AXTextAffinity affinity = start_offset == IA2_TEXT_OFFSET_CARET
- ? manager_->GetTreeData().sel_focus_affinity
- : ui::AX_TEXT_AFFINITY_DOWNSTREAM;
-
- HandleSpecialTextOffset(&start_offset);
- if (ia2_boundary == IA2_TEXT_BOUNDARY_WORD) {
- switch (direction) {
- case ui::FORWARDS_DIRECTION: {
- AXPlatformPositionInstance position =
- CreatePositionAt(static_cast<int>(start_offset), affinity);
- AXPlatformPositionInstance next_word =
- position->CreateNextWordStartPosition();
- if (next_word->anchor_id() != GetId())
- next_word = position->CreatePositionAtEndOfAnchor();
- return next_word->text_offset();
- }
- case ui::BACKWARDS_DIRECTION: {
- AXPlatformPositionInstance position =
- CreatePositionAt(static_cast<int>(start_offset), affinity);
- AXPlatformPositionInstance previous_word;
- if (!position->AtStartOfWord()) {
- previous_word = position->CreatePreviousWordStartPosition();
- if (previous_word->anchor_id() != GetId())
- previous_word = position->CreatePositionAtStartOfAnchor();
- } else {
- previous_word = std::move(position);
- }
- return previous_word->text_offset();
- }
- }
- }
-
- if (ia2_boundary == IA2_TEXT_BOUNDARY_LINE) {
- switch (direction) {
- case ui::FORWARDS_DIRECTION: {
- AXPlatformPositionInstance position =
- CreatePositionAt(static_cast<int>(start_offset), affinity);
- AXPlatformPositionInstance next_line =
- position->CreateNextLineStartPosition();
- if (next_line->anchor_id() != GetId())
- next_line = position->CreatePositionAtEndOfAnchor();
- return next_line->text_offset();
- }
- case ui::BACKWARDS_DIRECTION: {
- AXPlatformPositionInstance position =
- CreatePositionAt(static_cast<int>(start_offset), affinity);
- AXPlatformPositionInstance previous_line;
- if (!position->AtStartOfLine()) {
- previous_line = position->CreatePreviousLineStartPosition();
- if (previous_line->anchor_id() != GetId())
- previous_line = position->CreatePositionAtStartOfAnchor();
- } else {
- previous_line = std::move(position);
- }
- return previous_line->text_offset();
- }
- }
- }
-
- // TODO(nektar): |AXPosition| can handle other types of boundaries as well.
- ui::TextBoundaryType boundary = IA2TextBoundaryToTextBoundary(ia2_boundary);
- return ui::FindAccessibleTextBoundary(text, GetLineStartOffsets(), boundary,
- start_offset, direction, affinity);
-}
-
-LONG BrowserAccessibilityWin::FindStartOfStyle(
- LONG start_offset,
- ui::TextBoundaryDirection direction) const {
- LONG text_length = static_cast<LONG>(GetText().length());
- DCHECK_GE(start_offset, 0);
- DCHECK_LE(start_offset, text_length);
-
- switch (direction) {
- case ui::BACKWARDS_DIRECTION: {
- if (offset_to_text_attributes().empty())
- return 0;
-
- auto iterator = offset_to_text_attributes().upper_bound(start_offset);
- --iterator;
- return static_cast<LONG>(iterator->first);
- }
- case ui::FORWARDS_DIRECTION: {
- const auto iterator =
- offset_to_text_attributes().upper_bound(start_offset);
- if (iterator == offset_to_text_attributes().end())
- return text_length;
- return static_cast<LONG>(iterator->first);
- }
- }
-
- NOTREACHED();
- return start_offset;
-}
-
-BrowserAccessibilityWin* BrowserAccessibilityWin::GetFromID(int32_t id) const {
- if (!instance_active())
- return nullptr;
- return ToBrowserAccessibilityWin(manager_->GetFromID(id));
-}
-
-bool BrowserAccessibilityWin::IsListBoxOptionOrMenuListOption() {
- if (!PlatformGetParent())
- return false;
-
- int32_t role = GetRole();
- int32_t parent_role = PlatformGetParent()->GetRole();
-
- if (role == ui::AX_ROLE_LIST_BOX_OPTION &&
- parent_role == ui::AX_ROLE_LIST_BOX) {
- return true;
- }
-
- if (role == ui::AX_ROLE_MENU_LIST_OPTION &&
- parent_role == ui::AX_ROLE_MENU_LIST_POPUP) {
- return true;
- }
-
- return false;
-}
-
-void BrowserAccessibilityWin::AddRelation(const base::string16& relation_type,
- int target_id) {
- // Reflexive relations don't need to be exposed through IA2.
- if (target_id == GetId())
- return;
-
- CComObject<BrowserAccessibilityRelation>* relation;
- HRESULT hr =
- CComObject<BrowserAccessibilityRelation>::CreateInstance(&relation);
- DCHECK(SUCCEEDED(hr));
- relation->AddRef();
- relation->Initialize(this, relation_type);
- relation->AddTarget(target_id);
- relations_.push_back(relation);
-}
-
-void BrowserAccessibilityWin::AddBidirectionalRelations(
- const base::string16& relation_type,
- const base::string16& reverse_relation_type,
- ui::AXIntListAttribute attribute) {
- if (!HasIntListAttribute(attribute))
- return;
-
- const std::vector<int32_t>& target_ids = GetIntListAttribute(attribute);
- // Reflexive relations don't need to be exposed through IA2.
- std::vector<int32_t> filtered_target_ids;
- int32_t current_id = GetId();
- std::copy_if(target_ids.begin(), target_ids.end(),
- std::back_inserter(filtered_target_ids),
- [current_id](int32_t id) { return id != current_id; });
- if (filtered_target_ids.empty())
- return;
-
- CComObject<BrowserAccessibilityRelation>* relation;
- HRESULT hr =
- CComObject<BrowserAccessibilityRelation>::CreateInstance(&relation);
- DCHECK(SUCCEEDED(hr));
- relation->AddRef();
- relation->Initialize(this, relation_type);
-
- for (int target_id : filtered_target_ids) {
- BrowserAccessibilityWin* target =
- GetFromID(static_cast<int32_t>(target_id));
- if (!target || !target->instance_active())
- continue;
- relation->AddTarget(target_id);
- target->AddRelation(reverse_relation_type, GetId());
- }
-
- relations_.push_back(relation);
-}
-
-// Clears all the forward relations from this object to any other object and the
-// associated reverse relations on the other objects, but leaves any reverse
-// relations on this object alone.
-void BrowserAccessibilityWin::ClearOwnRelations() {
- RemoveBidirectionalRelationsOfType(IA2_RELATION_CONTROLLER_FOR,
- IA2_RELATION_CONTROLLED_BY);
- RemoveBidirectionalRelationsOfType(IA2_RELATION_DESCRIBED_BY,
- IA2_RELATION_DESCRIPTION_FOR);
- RemoveBidirectionalRelationsOfType(IA2_RELATION_FLOWS_TO,
- IA2_RELATION_FLOWS_FROM);
- RemoveBidirectionalRelationsOfType(IA2_RELATION_LABELLED_BY,
- IA2_RELATION_LABEL_FOR);
-
- relations_.erase(
- std::remove_if(relations_.begin(), relations_.end(),
- [](BrowserAccessibilityRelation* relation) {
- if (relation->get_type() == IA2_RELATION_MEMBER_OF) {
- relation->Release();
- return true;
- }
- return false;
- }),
- relations_.end());
-}
-
-void BrowserAccessibilityWin::RemoveBidirectionalRelationsOfType(
- const base::string16& relation_type,
- const base::string16& reverse_relation_type) {
- for (auto iter = relations_.begin(); iter != relations_.end();) {
- BrowserAccessibilityRelation* relation = *iter;
- DCHECK(relation);
- if (relation->get_type() == relation_type) {
- for (int target_id : relation->get_target_ids()) {
- BrowserAccessibilityWin* target =
- GetFromID(static_cast<int32_t>(target_id));
- if (!target || !target->instance_active())
- continue;
- DCHECK_NE(target, this);
- target->RemoveTargetFromRelation(reverse_relation_type, GetId());
- }
- iter = relations_.erase(iter);
- relation->Release();
- } else {
- ++iter;
- }
- }
-}
-
-void BrowserAccessibilityWin::RemoveTargetFromRelation(
- const base::string16& relation_type,
- int target_id) {
- for (auto iter = relations_.begin(); iter != relations_.end();) {
- BrowserAccessibilityRelation* relation = *iter;
- DCHECK(relation);
- if (relation->get_type() == relation_type) {
- // If |target_id| is not present, |RemoveTarget| will do nothing.
- relation->RemoveTarget(target_id);
- }
- if (relation->get_target_ids().empty()) {
- iter = relations_.erase(iter);
- relation->Release();
- } else {
- ++iter;
- }
- }
-}
-
-void BrowserAccessibilityWin::UpdateRequiredAttributes() {
- if (IsCellOrTableHeaderRole()) {
- // Expose colspan attribute.
- base::string16 colspan;
- if (GetHtmlAttribute("aria-colspan", &colspan)) {
- SanitizeStringAttributeForIA2(colspan, &colspan);
- win_attributes_->ia2_attributes.push_back(L"colspan:" + colspan);
- }
- // Expose rowspan attribute.
- base::string16 rowspan;
- if (GetHtmlAttribute("aria-rowspan", &rowspan)) {
- SanitizeStringAttributeForIA2(rowspan, &rowspan);
- win_attributes_->ia2_attributes.push_back(L"rowspan:" + rowspan);
- }
- }
-
- // Expose dropeffect attribute.
- base::string16 drop_effect;
- if (GetHtmlAttribute("aria-dropeffect", &drop_effect)) {
- SanitizeStringAttributeForIA2(drop_effect, &drop_effect);
- win_attributes_->ia2_attributes.push_back(L"dropeffect:" + drop_effect);
- }
-
- // Expose grabbed attribute.
- base::string16 grabbed;
- if (GetHtmlAttribute("aria-grabbed", &grabbed)) {
- SanitizeStringAttributeForIA2(grabbed, &grabbed);
- win_attributes_->ia2_attributes.push_back(L"grabbed:" + grabbed);
- }
-
- // Expose class attribute.
- base::string16 class_attr;
- if (GetHtmlAttribute("class", &class_attr)) {
- SanitizeStringAttributeForIA2(class_attr, &class_attr);
- win_attributes_->ia2_attributes.push_back(L"class:" + class_attr);
- }
-
- // Expose datetime attribute.
- base::string16 datetime;
- if (GetRole() == ui::AX_ROLE_TIME &&
- GetHtmlAttribute("datetime", &datetime)) {
- SanitizeStringAttributeForIA2(datetime, &datetime);
- win_attributes_->ia2_attributes.push_back(L"datetime:" + datetime);
- }
-
- // Expose id attribute.
- base::string16 id;
- if (GetHtmlAttribute("id", &id)) {
- SanitizeStringAttributeForIA2(id, &id);
- win_attributes_->ia2_attributes.push_back(L"id:" + id);
- }
-
- // Expose src attribute.
- base::string16 src;
- if (GetRole() == ui::AX_ROLE_IMAGE && GetHtmlAttribute("src", &src)) {
- SanitizeStringAttributeForIA2(src, &src);
- win_attributes_->ia2_attributes.push_back(L"src:" + src);
- }
-
- // Expose input-text type attribute.
- base::string16 type;
- base::string16 html_tag = GetString16Attribute(ui::AX_ATTR_HTML_TAG);
- if (IsSimpleTextControl() && html_tag == L"input" &&
- GetHtmlAttribute("type", &type)) {
- SanitizeStringAttributeForIA2(type, &type);
- win_attributes_->ia2_attributes.push_back(L"text-input-type:" + type);
- }
-}
-
-void BrowserAccessibilityWin::FireNativeEvent(LONG win_event_type) const {
- (new BrowserAccessibilityEventWin(
- BrowserAccessibilityEvent::FromTreeChange,
- ui::AX_EVENT_NONE,
- win_event_type,
- this))->Fire();
-}
-
-ui::AXPlatformNodeWin* BrowserAccessibilityWin::GetPlatformNodeWin() const {
- DCHECK(platform_node_);
- return static_cast<ui::AXPlatformNodeWin*>(platform_node_);
-}
-
-void BrowserAccessibilityWin::InitRoleAndState() {
- int32_t ia_role = 0;
- int32_t ia_state = 0;
- base::string16 role_name;
- int32_t ia2_role = 0;
- int32_t ia2_state = IA2_STATE_OPAQUE;
-
- if (HasState(ui::AX_STATE_BUSY))
- ia_state |= STATE_SYSTEM_BUSY;
-
- const auto checked_state = static_cast<ui::AXCheckedState>(
- GetIntAttribute(ui::AX_ATTR_CHECKED_STATE));
- switch (checked_state) {
- case ui::AX_CHECKED_STATE_TRUE:
- ia_state |= STATE_SYSTEM_CHECKED;
- break;
- case ui::AX_CHECKED_STATE_MIXED:
- ia_state |= STATE_SYSTEM_MIXED;
- break;
- default:
- break;
- }
-
- if (HasState(ui::AX_STATE_COLLAPSED))
- ia_state |= STATE_SYSTEM_COLLAPSED;
- if (HasState(ui::AX_STATE_EXPANDED))
- ia_state |= STATE_SYSTEM_EXPANDED;
- if (HasState(ui::AX_STATE_FOCUSABLE))
- ia_state |= STATE_SYSTEM_FOCUSABLE;
- if (HasState(ui::AX_STATE_HASPOPUP))
- ia_state |= STATE_SYSTEM_HASPOPUP;
- if (HasIntAttribute(ui::AX_ATTR_INVALID_STATE) &&
- GetIntAttribute(ui::AX_ATTR_INVALID_STATE) != ui::AX_INVALID_STATE_FALSE)
- ia2_state |= IA2_STATE_INVALID_ENTRY;
- if (HasState(ui::AX_STATE_INVISIBLE))
- ia_state |= STATE_SYSTEM_INVISIBLE;
- if (HasState(ui::AX_STATE_LINKED))
- ia_state |= STATE_SYSTEM_LINKED;
- if (HasState(ui::AX_STATE_MULTISELECTABLE)) {
- ia_state |= STATE_SYSTEM_EXTSELECTABLE;
- ia_state |= STATE_SYSTEM_MULTISELECTABLE;
- }
- // TODO(ctguil): Support STATE_SYSTEM_EXTSELECTABLE/accSelect.
- if (HasState(ui::AX_STATE_OFFSCREEN))
- ia_state |= STATE_SYSTEM_OFFSCREEN;
- if (HasState(ui::AX_STATE_PRESSED))
- ia_state |= STATE_SYSTEM_PRESSED;
- if (HasState(ui::AX_STATE_PROTECTED))
- ia_state |= STATE_SYSTEM_PROTECTED;
- if (HasState(ui::AX_STATE_REQUIRED))
- ia2_state |= IA2_STATE_REQUIRED;
- if (HasState(ui::AX_STATE_SELECTABLE))
- ia_state |= STATE_SYSTEM_SELECTABLE;
- if (HasState(ui::AX_STATE_SELECTED))
- ia_state |= STATE_SYSTEM_SELECTED;
- if (HasState(ui::AX_STATE_VISITED))
- ia_state |= STATE_SYSTEM_TRAVERSED;
- if (HasState(ui::AX_STATE_DISABLED))
- ia_state |= STATE_SYSTEM_UNAVAILABLE;
- if (HasState(ui::AX_STATE_VERTICAL))
- ia2_state |= IA2_STATE_VERTICAL;
- if (HasState(ui::AX_STATE_HORIZONTAL))
- ia2_state |= IA2_STATE_HORIZONTAL;
- if (HasState(ui::AX_STATE_VISITED))
- ia_state |= STATE_SYSTEM_TRAVERSED;
-
- // Expose whether or not the mouse is over an element, but suppress
- // this for tests because it can make the test results flaky depending
- // on the position of the mouse.
- BrowserAccessibilityStateImpl* accessibility_state =
- BrowserAccessibilityStateImpl::GetInstance();
- if (!accessibility_state->disable_hot_tracking_for_testing()) {
- if (HasState(ui::AX_STATE_HOVERED))
- ia_state |= STATE_SYSTEM_HOTTRACKED;
- }
-
- if (HasState(ui::AX_STATE_EDITABLE))
- ia2_state |= IA2_STATE_EDITABLE;
-
- if (GetBoolAttribute(ui::AX_ATTR_CAN_SET_VALUE))
- ia2_state |= IA2_STATE_EDITABLE;
-
- if (!GetStringAttribute(ui::AX_ATTR_AUTO_COMPLETE).empty())
- ia2_state |= IA2_STATE_SUPPORTS_AUTOCOMPLETION;
-
- if (GetBoolAttribute(ui::AX_ATTR_MODAL))
- ia2_state |= IA2_STATE_MODAL;
-
- base::string16 html_tag = GetString16Attribute(
- ui::AX_ATTR_HTML_TAG);
- switch (GetRole()) {
- case ui::AX_ROLE_ALERT:
- ia_role = ROLE_SYSTEM_ALERT;
- break;
- case ui::AX_ROLE_ALERT_DIALOG:
- ia_role = ROLE_SYSTEM_DIALOG;
- break;
- case ui::AX_ROLE_ANCHOR:
- ia_role = ROLE_SYSTEM_LINK;
- break;
- case ui::AX_ROLE_APPLICATION:
- ia_role = ROLE_SYSTEM_APPLICATION;
- break;
- case ui::AX_ROLE_ARTICLE:
- ia_role = ROLE_SYSTEM_DOCUMENT;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_AUDIO:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_BANNER:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_HEADER;
- break;
- case ui::AX_ROLE_BLOCKQUOTE:
- role_name = html_tag;
- ia2_role = IA2_ROLE_SECTION;
- break;
- case ui::AX_ROLE_BUSY_INDICATOR:
- ia_role = ROLE_SYSTEM_ANIMATION;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_BUTTON:
- ia_role = ROLE_SYSTEM_PUSHBUTTON;
- break;
- case ui::AX_ROLE_CANVAS:
- if (GetBoolAttribute(ui::AX_ATTR_CANVAS_HAS_FALLBACK)) {
- role_name = L"canvas";
- ia2_role = IA2_ROLE_CANVAS;
- } else {
- ia_role = ROLE_SYSTEM_GRAPHIC;
- }
- break;
- case ui::AX_ROLE_CAPTION:
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_CAPTION;
- break;
- case ui::AX_ROLE_CELL:
- ia_role = ROLE_SYSTEM_CELL;
- break;
- case ui::AX_ROLE_CHECK_BOX:
- ia_role = ROLE_SYSTEM_CHECKBUTTON;
- ia2_state |= IA2_STATE_CHECKABLE;
- break;
- case ui::AX_ROLE_COLOR_WELL:
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_COLOR_CHOOSER;
- break;
- case ui::AX_ROLE_COLUMN:
- ia_role = ROLE_SYSTEM_COLUMN;
- break;
- case ui::AX_ROLE_COLUMN_HEADER:
- ia_role = ROLE_SYSTEM_COLUMNHEADER;
- break;
- case ui::AX_ROLE_COMBO_BOX:
- ia_role = ROLE_SYSTEM_COMBOBOX;
- break;
- case ui::AX_ROLE_COMPLEMENTARY:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_NOTE;
- break;
- case ui::AX_ROLE_CONTENT_INFO:
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_PARAGRAPH;
- break;
- case ui::AX_ROLE_DATE:
- case ui::AX_ROLE_DATE_TIME:
- ia_role = ROLE_SYSTEM_DROPLIST;
- ia2_role = IA2_ROLE_DATE_EDITOR;
- break;
- case ui::AX_ROLE_DIV:
- role_name = L"div";
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_SECTION;
- break;
- case ui::AX_ROLE_DEFINITION:
- role_name = html_tag;
- ia2_role = IA2_ROLE_PARAGRAPH;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_DESCRIPTION_LIST_DETAIL:
- role_name = html_tag;
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_PARAGRAPH;
- break;
- case ui::AX_ROLE_DESCRIPTION_LIST:
- role_name = html_tag;
- ia_role = ROLE_SYSTEM_LIST;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_DESCRIPTION_LIST_TERM:
- ia_role = ROLE_SYSTEM_LISTITEM;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_DETAILS:
- role_name = html_tag;
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_DIALOG:
- ia_role = ROLE_SYSTEM_DIALOG;
- break;
- case ui::AX_ROLE_DISCLOSURE_TRIANGLE:
- ia_role = ROLE_SYSTEM_PUSHBUTTON;
- break;
- case ui::AX_ROLE_DOCUMENT:
- case ui::AX_ROLE_ROOT_WEB_AREA:
- case ui::AX_ROLE_WEB_AREA:
- ia_role = ROLE_SYSTEM_DOCUMENT;
- ia_state |= STATE_SYSTEM_READONLY;
- ia_state |= STATE_SYSTEM_FOCUSABLE;
- break;
- case ui::AX_ROLE_EMBEDDED_OBJECT:
- if (PlatformChildCount()) {
- // Windows screen readers assume that IA2_ROLE_EMBEDDED_OBJECT
- // doesn't have any children, but it may be something like a
- // browser plugin that has a document inside.
- ia_role = ROLE_SYSTEM_GROUPING;
- } else {
- ia_role = ROLE_SYSTEM_CLIENT;
- ia2_role = IA2_ROLE_EMBEDDED_OBJECT;
- }
- break;
- case ui::AX_ROLE_FIGCAPTION:
- role_name = html_tag;
- ia2_role = IA2_ROLE_CAPTION;
- break;
- case ui::AX_ROLE_FIGURE:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_FEED:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_FORM:
- role_name = L"form";
- ia2_role = IA2_ROLE_FORM;
- break;
- case ui::AX_ROLE_FOOTER:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_FOOTER;
- break;
- case ui::AX_ROLE_GRID:
- ia_role = ROLE_SYSTEM_TABLE;
- // TODO(aleventhal) this changed between ARIA 1.0 and 1.1,
- // need to determine whether grids/treegrids should really be readonly
- // or editable by default
- // ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_GROUP: {
- base::string16 aria_role = GetString16Attribute(
- ui::AX_ATTR_ROLE);
- if (aria_role == L"group" || html_tag == L"fieldset") {
- ia_role = ROLE_SYSTEM_GROUPING;
- } else if (html_tag == L"li") {
- ia_role = ROLE_SYSTEM_LISTITEM;
- ia_state |= STATE_SYSTEM_READONLY;
- } else {
- if (html_tag.empty())
- role_name = L"div";
- else
- role_name = html_tag;
- ia2_role = IA2_ROLE_SECTION;
- }
- break;
- }
- case ui::AX_ROLE_HEADING:
- role_name = html_tag;
- if (html_tag.empty())
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_HEADING;
- break;
- case ui::AX_ROLE_IFRAME:
- ia_role = ROLE_SYSTEM_DOCUMENT;
- ia2_role = IA2_ROLE_INTERNAL_FRAME;
- ia_state = STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_IFRAME_PRESENTATIONAL:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_IMAGE:
- ia_role = ROLE_SYSTEM_GRAPHIC;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_IMAGE_MAP:
- role_name = html_tag;
- ia2_role = IA2_ROLE_IMAGE_MAP;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_IMAGE_MAP_LINK:
- ia_role = ROLE_SYSTEM_LINK;
- ia_state |= STATE_SYSTEM_LINKED;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_INPUT_TIME:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_LABEL_TEXT:
- case ui::AX_ROLE_LEGEND:
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_LABEL;
- break;
- case ui::AX_ROLE_LINK:
- ia_role = ROLE_SYSTEM_LINK;
- ia_state |= STATE_SYSTEM_LINKED;
- break;
- case ui::AX_ROLE_LIST:
- ia_role = ROLE_SYSTEM_LIST;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_LIST_BOX:
- ia_role = ROLE_SYSTEM_LIST;
- break;
- case ui::AX_ROLE_LIST_BOX_OPTION:
- ia_role = ROLE_SYSTEM_LISTITEM;
- if (ia_state & STATE_SYSTEM_SELECTABLE) {
- ia_state |= STATE_SYSTEM_FOCUSABLE;
- }
- break;
- case ui::AX_ROLE_LIST_ITEM:
- ia_role = ROLE_SYSTEM_LISTITEM;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_MAIN:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_PARAGRAPH;
- break;
- case ui::AX_ROLE_MARK:
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_TEXT_FRAME;
- break;
- case ui::AX_ROLE_MARQUEE:
- ia_role = ROLE_SYSTEM_ANIMATION;
- break;
- case ui::AX_ROLE_MATH:
- ia_role = ROLE_SYSTEM_EQUATION;
- break;
- case ui::AX_ROLE_MENU:
- case ui::AX_ROLE_MENU_BUTTON:
- ia_role = ROLE_SYSTEM_MENUPOPUP;
- break;
- case ui::AX_ROLE_MENU_BAR:
- ia_role = ROLE_SYSTEM_MENUBAR;
- break;
- case ui::AX_ROLE_MENU_ITEM:
- ia_role = ROLE_SYSTEM_MENUITEM;
- break;
- case ui::AX_ROLE_MENU_ITEM_CHECK_BOX:
- ia_role = ROLE_SYSTEM_MENUITEM;
- ia2_role = IA2_ROLE_CHECK_MENU_ITEM;
- ia2_state |= IA2_STATE_CHECKABLE;
- break;
- case ui::AX_ROLE_MENU_ITEM_RADIO:
- ia_role = ROLE_SYSTEM_MENUITEM;
- ia2_role = IA2_ROLE_RADIO_MENU_ITEM;
- break;
- case ui::AX_ROLE_MENU_LIST_POPUP:
- ia_role = ROLE_SYSTEM_LIST;
- ia2_state &= ~(IA2_STATE_EDITABLE);
- break;
- case ui::AX_ROLE_MENU_LIST_OPTION:
- ia_role = ROLE_SYSTEM_LISTITEM;
- ia2_state &= ~(IA2_STATE_EDITABLE);
- if (ia_state & STATE_SYSTEM_SELECTABLE) {
- ia_state |= STATE_SYSTEM_FOCUSABLE;
- }
- break;
- case ui::AX_ROLE_METER:
- role_name = html_tag;
- ia_role = ROLE_SYSTEM_PROGRESSBAR;
- break;
- case ui::AX_ROLE_NAVIGATION:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_SECTION;
- break;
- case ui::AX_ROLE_NOTE:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_NOTE;
- break;
- case ui::AX_ROLE_OUTLINE:
- ia_role = ROLE_SYSTEM_OUTLINE;
- break;
- case ui::AX_ROLE_PARAGRAPH:
- role_name = L"P";
- ia2_role = IA2_ROLE_PARAGRAPH;
- break;
- case ui::AX_ROLE_POP_UP_BUTTON:
- if (html_tag == L"select") {
- ia_role = ROLE_SYSTEM_COMBOBOX;
- } else {
- ia_role = ROLE_SYSTEM_BUTTONMENU;
- }
- break;
- case ui::AX_ROLE_PRE:
- role_name = html_tag;
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_PARAGRAPH;
- break;
- case ui::AX_ROLE_PROGRESS_INDICATOR:
- ia_role = ROLE_SYSTEM_PROGRESSBAR;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_RADIO_BUTTON:
- ia_role = ROLE_SYSTEM_RADIOBUTTON;
- ia2_state = IA2_STATE_CHECKABLE;
- break;
- case ui::AX_ROLE_RADIO_GROUP:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_REGION:
- if (html_tag == L"section") {
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_SECTION;
- } else {
- ia_role = ROLE_SYSTEM_PANE;
- }
- break;
- case ui::AX_ROLE_ROW: {
- // Role changes depending on whether row is inside a treegrid
- // https://www.w3.org/TR/core-aam-1.1/#role-map-row
- ia_role = IsInTreeGrid(this) ? ROLE_SYSTEM_OUTLINEITEM : ROLE_SYSTEM_ROW;
- break;
- }
- case ui::AX_ROLE_ROW_HEADER:
- ia_role = ROLE_SYSTEM_ROWHEADER;
- break;
- case ui::AX_ROLE_RUBY:
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_TEXT_FRAME;
- break;
- case ui::AX_ROLE_RULER:
- ia_role = ROLE_SYSTEM_CLIENT;
- ia2_role = IA2_ROLE_RULER;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_SCROLL_AREA:
- ia_role = ROLE_SYSTEM_CLIENT;
- ia2_role = IA2_ROLE_SCROLL_PANE;
- ia_state |= STATE_SYSTEM_READONLY;
- ia2_state &= ~(IA2_STATE_EDITABLE);
- break;
- case ui::AX_ROLE_SCROLL_BAR:
- ia_role = ROLE_SYSTEM_SCROLLBAR;
- break;
- case ui::AX_ROLE_SEARCH:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_SECTION;
- break;
- case ui::AX_ROLE_SLIDER:
- ia_role = ROLE_SYSTEM_SLIDER;
- break;
- case ui::AX_ROLE_SPIN_BUTTON:
- ia_role = ROLE_SYSTEM_SPINBUTTON;
- break;
- case ui::AX_ROLE_SPIN_BUTTON_PART:
- ia_role = ROLE_SYSTEM_PUSHBUTTON;
- break;
- case ui::AX_ROLE_ANNOTATION:
- case ui::AX_ROLE_LIST_MARKER:
- case ui::AX_ROLE_STATIC_TEXT:
- ia_role = ROLE_SYSTEM_STATICTEXT;
- break;
- case ui::AX_ROLE_STATUS:
- ia_role = ROLE_SYSTEM_STATUSBAR;
- break;
- case ui::AX_ROLE_SPLITTER:
- ia_role = ROLE_SYSTEM_SEPARATOR;
- break;
- case ui::AX_ROLE_SVG_ROOT:
- ia_role = ROLE_SYSTEM_GRAPHIC;
- break;
- case ui::AX_ROLE_SWITCH:
- role_name = L"switch";
- ia2_role = IA2_ROLE_TOGGLE_BUTTON;
- break;
- case ui::AX_ROLE_TAB:
- ia_role = ROLE_SYSTEM_PAGETAB;
- break;
- case ui::AX_ROLE_TABLE:
- ia_role = ROLE_SYSTEM_TABLE;
- break;
- case ui::AX_ROLE_TABLE_HEADER_CONTAINER:
- ia_role = ROLE_SYSTEM_GROUPING;
- ia2_role = IA2_ROLE_SECTION;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_TAB_LIST:
- ia_role = ROLE_SYSTEM_PAGETABLIST;
- break;
- case ui::AX_ROLE_TAB_PANEL:
- ia_role = ROLE_SYSTEM_PROPERTYPAGE;
- break;
- case ui::AX_ROLE_TERM:
- ia_role = ROLE_SYSTEM_LISTITEM;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_TOGGLE_BUTTON:
- ia_role = ROLE_SYSTEM_PUSHBUTTON;
- ia2_role = IA2_ROLE_TOGGLE_BUTTON;
- break;
- case ui::AX_ROLE_TEXT_FIELD:
- case ui::AX_ROLE_SEARCH_BOX:
- ia_role = ROLE_SYSTEM_TEXT;
- if (HasState(ui::AX_STATE_MULTILINE)) {
- ia2_state |= IA2_STATE_MULTI_LINE;
- } else {
- ia2_state |= IA2_STATE_SINGLE_LINE;
- }
- if (HasState(ui::AX_STATE_READ_ONLY))
- ia_state |= STATE_SYSTEM_READONLY;
- ia2_state |= IA2_STATE_SELECTABLE_TEXT;
- break;
- case ui::AX_ROLE_ABBR:
- case ui::AX_ROLE_TIME:
- role_name = html_tag;
- ia_role = ROLE_SYSTEM_TEXT;
- ia2_role = IA2_ROLE_TEXT_FRAME;
- break;
- case ui::AX_ROLE_TIMER:
- ia_role = ROLE_SYSTEM_CLOCK;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_TOOLBAR:
- ia_role = ROLE_SYSTEM_TOOLBAR;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_TOOLTIP:
- ia_role = ROLE_SYSTEM_TOOLTIP;
- ia_state |= STATE_SYSTEM_READONLY;
- break;
- case ui::AX_ROLE_TREE:
- ia_role = ROLE_SYSTEM_OUTLINE;
- break;
- case ui::AX_ROLE_TREE_GRID:
- ia_role = ROLE_SYSTEM_OUTLINE;
- break;
- case ui::AX_ROLE_TREE_ITEM:
- ia_role = ROLE_SYSTEM_OUTLINEITEM;
- break;
- case ui::AX_ROLE_LINE_BREAK:
- ia_role = ROLE_SYSTEM_WHITESPACE;
- break;
- case ui::AX_ROLE_VIDEO:
- ia_role = ROLE_SYSTEM_GROUPING;
- break;
- case ui::AX_ROLE_WINDOW:
- ia_role = ROLE_SYSTEM_WINDOW;
- break;
-
- // TODO(dmazzoni): figure out the proper MSAA role for all of these.
- case ui::AX_ROLE_DIRECTORY:
- case ui::AX_ROLE_IGNORED:
- case ui::AX_ROLE_LOG:
- case ui::AX_ROLE_NONE:
- case ui::AX_ROLE_PRESENTATIONAL:
- case ui::AX_ROLE_SLIDER_THUMB:
- default:
- ia_role = ROLE_SYSTEM_CLIENT;
- break;
- }
-
- // Compute the final value of READONLY for MSAA.
- //
- // We always set the READONLY state for elements that have the
- // aria-readonly attribute and for a few roles (in the switch above),
- // including read-only text fields.
- // The majority of focusable controls should not have the read-only state set.
- if (HasState(ui::AX_STATE_FOCUSABLE) && ia_role != ROLE_SYSTEM_DOCUMENT &&
- ia_role != ROLE_SYSTEM_TEXT) {
- ia_state &= ~(STATE_SYSTEM_READONLY);
- }
- if (!HasState(ui::AX_STATE_READ_ONLY))
- ia_state &= ~(STATE_SYSTEM_READONLY);
- if (GetBoolAttribute(ui::AX_ATTR_ARIA_READONLY))
- ia_state |= STATE_SYSTEM_READONLY;
-
- // The role should always be set.
- DCHECK(!role_name.empty() || ia_role);
-
- // If we didn't explicitly set the IAccessible2 role, make it the same
- // as the MSAA role.
- if (!ia2_role)
- ia2_role = ia_role;
-
- win_attributes_->ia_role = ia_role;
- win_attributes_->ia_state = ia_state;
- win_attributes_->role_name = role_name;
- win_attributes_->ia2_role = ia2_role;
- win_attributes_->ia2_state = ia2_state;
-}
-
-bool BrowserAccessibilityWin::IsInTreeGrid(const BrowserAccessibility* item) {
- BrowserAccessibility* container = item->PlatformGetParent();
- if (container && container->GetRole() == ui::AX_ROLE_GROUP) {
- // If parent was a rowgroup, we need to look at the grandparent
- container = container->PlatformGetParent();
- }
-
- if (!container) {
- return false;
- }
-
- return container->GetRole() == ui::AX_ROLE_TREE_GRID;
+BrowserAccessibilityComWin* BrowserAccessibilityWin::GetCOM() const {
+ DCHECK(browser_accessibility_com_);
+ return browser_accessibility_com_;
}
BrowserAccessibilityWin* ToBrowserAccessibilityWin(BrowserAccessibility* obj) {
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