| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/accessibility/platform/ax_platform_node_win.h" |
| |
| #include <wrl/client.h> |
| |
| #include <algorithm> |
| #include <map> |
| #include <set> |
| #include <string> |
| #include <unordered_set> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/lazy_instance.h" |
| #include "base/metrics/histogram_functions.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/win/enum_variant.h" |
| #include "base/win/scoped_bstr.h" |
| #include "base/win/scoped_safearray.h" |
| #include "base/win/scoped_variant.h" |
| #include "skia/ext/skia_utils_win.h" |
| #include "third_party/iaccessible2/ia2_api_all.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "ui/accessibility/accessibility_switches.h" |
| #include "ui/accessibility/ax_action_data.h" |
| #include "ui/accessibility/ax_mode_observer.h" |
| #include "ui/accessibility/ax_node_data.h" |
| #include "ui/accessibility/ax_node_position.h" |
| #include "ui/accessibility/ax_role_properties.h" |
| #include "ui/accessibility/ax_text_utils.h" |
| #include "ui/accessibility/ax_tree_data.h" |
| #include "ui/accessibility/platform/ax_fragment_root_win.h" |
| #include "ui/accessibility/platform/ax_platform_node_delegate.h" |
| #include "ui/accessibility/platform/ax_platform_node_delegate_utils_win.h" |
| #include "ui/accessibility/platform/ax_platform_node_textchildprovider_win.h" |
| #include "ui/accessibility/platform/ax_platform_node_textprovider_win.h" |
| #include "ui/accessibility/platform/ax_platform_relation_win.h" |
| #include "ui/base/win/atl_module.h" |
| #include "ui/display/win/screen_win.h" |
| #include "ui/gfx/geometry/rect_conversions.h" |
| #include "ui/gfx/geometry/safe_integer_conversions.h" |
| |
| // |
| // Macros to use at the top of any AXPlatformNodeWin function that implements |
| // a non-UIA COM interface. Because COM objects are reference counted and |
| // clients are completely untrusted, it's important to always first check that |
| // our object is still valid, and then check that all pointer arguments are not |
| // NULL. |
| // |
| #define COM_OBJECT_VALIDATE() \ |
| if (!GetDelegate()) \ |
| return E_FAIL; |
| #define COM_OBJECT_VALIDATE_1_ARG(arg) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg) \ |
| return E_INVALIDARG; \ |
| *arg = {}; |
| #define COM_OBJECT_VALIDATE_2_ARGS(arg1, arg2) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; |
| #define COM_OBJECT_VALIDATE_3_ARGS(arg1, arg2, arg3) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; \ |
| if (!arg3) \ |
| return E_INVALIDARG; \ |
| *arg3 = {}; |
| #define COM_OBJECT_VALIDATE_4_ARGS(arg1, arg2, arg3, arg4) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; \ |
| if (!arg3) \ |
| return E_INVALIDARG; \ |
| *arg3 = {}; \ |
| if (!arg4) \ |
| return E_INVALIDARG; \ |
| *arg4 = {}; |
| #define COM_OBJECT_VALIDATE_5_ARGS(arg1, arg2, arg3, arg4, arg5) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; \ |
| if (!arg3) \ |
| return E_INVALIDARG; \ |
| *arg3 = {}; \ |
| if (!arg4) \ |
| return E_INVALIDARG; \ |
| *arg4 = {}; \ |
| if (!arg5) \ |
| return E_INVALIDARG; \ |
| *arg5 = {}; |
| #define COM_OBJECT_VALIDATE_VAR_ID_AND_GET_TARGET(var_id, target) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| target = GetTargetFromChildID(var_id); \ |
| if (!target) \ |
| return E_INVALIDARG; \ |
| if (!target->GetDelegate()) \ |
| return E_INVALIDARG; |
| #define COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, arg, target) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg) \ |
| return E_INVALIDARG; \ |
| *arg = {}; \ |
| target = GetTargetFromChildID(var_id); \ |
| if (!target) \ |
| return E_INVALIDARG; \ |
| if (!target->GetDelegate()) \ |
| return E_INVALIDARG; |
| #define COM_OBJECT_VALIDATE_VAR_ID_2_ARGS_AND_GET_TARGET(var_id, arg1, arg2, \ |
| target) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; \ |
| target = GetTargetFromChildID(var_id); \ |
| if (!target) \ |
| return E_INVALIDARG; \ |
| if (!target->GetDelegate()) \ |
| return E_INVALIDARG; |
| #define COM_OBJECT_VALIDATE_VAR_ID_3_ARGS_AND_GET_TARGET(var_id, arg1, arg2, \ |
| arg3, target) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; \ |
| if (!arg3) \ |
| return E_INVALIDARG; \ |
| *arg3 = {}; \ |
| target = GetTargetFromChildID(var_id); \ |
| if (!target) \ |
| return E_INVALIDARG; \ |
| if (!target->GetDelegate()) \ |
| return E_INVALIDARG; |
| #define COM_OBJECT_VALIDATE_VAR_ID_4_ARGS_AND_GET_TARGET(var_id, arg1, arg2, \ |
| arg3, arg4, target) \ |
| if (!GetDelegate()) \ |
| return E_FAIL; \ |
| if (!arg1) \ |
| return E_INVALIDARG; \ |
| *arg1 = {}; \ |
| if (!arg2) \ |
| return E_INVALIDARG; \ |
| *arg2 = {}; \ |
| if (!arg3) \ |
| return E_INVALIDARG; \ |
| *arg3 = {}; \ |
| if (!arg4) \ |
| return E_INVALIDARG; \ |
| *arg4 = {}; \ |
| target = GetTargetFromChildID(var_id); \ |
| if (!target) \ |
| return E_INVALIDARG; \ |
| if (!target->GetDelegate()) \ |
| return E_INVALIDARG; |
| |
| namespace ui { |
| |
| namespace { |
| |
| typedef std::unordered_set<AXPlatformNodeWin*> AXPlatformNodeWinSet; |
| // Set of all AXPlatformNodeWin objects that were the target of an |
| // alert event. |
| base::LazyInstance<AXPlatformNodeWinSet>::Leaky g_alert_targets = |
| LAZY_INSTANCE_INITIALIZER; |
| |
| base::LazyInstance<base::ObserverList<IAccessible2UsageObserver>::Unchecked>:: |
| Leaky g_iaccessible2_usage_observer_list = LAZY_INSTANCE_INITIALIZER; |
| |
| // Sets the multiplier by which large changes to a RangeValueProvider are |
| // greater than small changes. |
| constexpr int kLargeChangeScaleFactor = 10; |
| |
| // The amount to scroll when UI Automation asks to scroll by a small increment. |
| // Value is in device independent pixels and is the same used by Blink when |
| // cursor keys are used to scroll a webpage. |
| constexpr float kSmallScrollIncrement = 40.0f; |
| |
| void AppendTextToString(base::string16 extra_text, base::string16* string) { |
| if (extra_text.empty()) |
| return; |
| |
| if (string->empty()) { |
| *string = extra_text; |
| return; |
| } |
| |
| *string += base::string16(L". ") + extra_text; |
| } |
| |
| // Helper function to GetPatternProviderFactoryMethod that, given a node, |
| // will return a pattern interface through result based on the provided type T. |
| template <typename T> |
| void PatternProvider(AXPlatformNodeWin* node, IUnknown** result) { |
| node->AddRef(); |
| *result = static_cast<T*>(node); |
| } |
| |
| } // namespace |
| |
| void AXPlatformNodeWin::AddAttributeToList(const char* name, |
| const char* value, |
| PlatformAttributeList* attributes) { |
| std::string str_value = value; |
| SanitizeStringAttribute(str_value, &str_value); |
| attributes->push_back(base::UTF8ToUTF16(name) + L":" + |
| base::UTF8ToUTF16(str_value)); |
| } |
| |
| // 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 = |
| AXMode::kScreenReader | AXMode::kHTML; |
| |
| // |
| // IAccessible2UsageObserver |
| // |
| |
| IAccessible2UsageObserver::IAccessible2UsageObserver() {} |
| |
| IAccessible2UsageObserver::~IAccessible2UsageObserver() {} |
| |
| // static |
| base::ObserverList<IAccessible2UsageObserver>::Unchecked& |
| GetIAccessible2UsageObserverList() { |
| return g_iaccessible2_usage_observer_list.Get(); |
| } |
| |
| // |
| // AXPlatformNode::Create |
| // |
| |
| // static |
| AXPlatformNode* AXPlatformNode::Create(AXPlatformNodeDelegate* delegate) { |
| // Make sure ATL is initialized in this module. |
| win::CreateATLModuleIfNeeded(); |
| |
| CComObject<AXPlatformNodeWin>* instance = nullptr; |
| HRESULT hr = CComObject<AXPlatformNodeWin>::CreateInstance(&instance); |
| DCHECK(SUCCEEDED(hr)); |
| instance->Init(delegate); |
| instance->AddRef(); |
| return instance; |
| } |
| |
| // static |
| AXPlatformNode* AXPlatformNode::FromNativeViewAccessible( |
| gfx::NativeViewAccessible accessible) { |
| if (!accessible) |
| return nullptr; |
| Microsoft::WRL::ComPtr<AXPlatformNodeWin> ax_platform_node; |
| accessible->QueryInterface(ax_platform_node.GetAddressOf()); |
| return ax_platform_node.Get(); |
| } |
| |
| // |
| // AXPlatformNodeWin |
| // |
| |
| AXPlatformNodeWin::AXPlatformNodeWin() {} |
| |
| AXPlatformNodeWin::~AXPlatformNodeWin() { |
| ClearOwnRelations(); |
| } |
| |
| void AXPlatformNodeWin::Init(AXPlatformNodeDelegate* delegate) { |
| AXPlatformNodeBase::Init(delegate); |
| } |
| |
| void AXPlatformNodeWin::ClearOwnRelations() { |
| for (size_t i = 0; i < relations_.size(); ++i) |
| relations_[i]->Invalidate(); |
| relations_.clear(); |
| } |
| |
| // Static |
| void AXPlatformNodeWin::SanitizeStringAttributeForUIAAriaProperty( |
| const base::string16& input, |
| base::string16* output) { |
| DCHECK(output); |
| // According to the UIA Spec, these characters need to be escaped with a |
| // backslash in an AriaProperties string: backslash, 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); |
| } |
| |
| void AXPlatformNodeWin::StringAttributeToUIAAriaProperty( |
| std::vector<base::string16>& properties, |
| ax::mojom::StringAttribute attribute, |
| const char* uia_aria_property) { |
| base::string16 value; |
| if (GetString16Attribute(attribute, &value)) { |
| SanitizeStringAttributeForUIAAriaProperty(value, &value); |
| properties.push_back(base::ASCIIToUTF16(uia_aria_property) + L"=" + value); |
| } |
| } |
| |
| void AXPlatformNodeWin::BoolAttributeToUIAAriaProperty( |
| std::vector<base::string16>& properties, |
| ax::mojom::BoolAttribute attribute, |
| const char* uia_aria_property) { |
| bool value; |
| if (GetBoolAttribute(attribute, &value)) { |
| properties.push_back((base::ASCIIToUTF16(uia_aria_property) + L"=") + |
| (value ? L"true" : L"false")); |
| } |
| } |
| |
| void AXPlatformNodeWin::IntAttributeToUIAAriaProperty( |
| std::vector<base::string16>& properties, |
| ax::mojom::IntAttribute attribute, |
| const char* uia_aria_property) { |
| int value; |
| if (GetIntAttribute(attribute, &value)) { |
| properties.push_back(base::ASCIIToUTF16(uia_aria_property) + L"=" + |
| base::NumberToString16(value)); |
| } |
| } |
| |
| void AXPlatformNodeWin::FloatAttributeToUIAAriaProperty( |
| std::vector<base::string16>& properties, |
| ax::mojom::FloatAttribute attribute, |
| const char* uia_aria_property) { |
| float value; |
| if (GetFloatAttribute(attribute, &value)) { |
| properties.push_back(base::ASCIIToUTF16(uia_aria_property) + L"=" + |
| base::NumberToString16(value)); |
| } |
| } |
| |
| void AXPlatformNodeWin::StateToUIAAriaProperty( |
| std::vector<base::string16>& properties, |
| ax::mojom::State state, |
| const char* uia_aria_property) { |
| const AXNodeData& data = GetData(); |
| bool value = data.HasState(state); |
| properties.push_back((base::ASCIIToUTF16(uia_aria_property) + L"=") + |
| (value ? L"true" : L"false")); |
| } |
| |
| void AXPlatformNodeWin::HtmlAttributeToUIAAriaProperty( |
| std::vector<base::string16>& properties, |
| const char* html_attribute_name, |
| const char* uia_aria_property) { |
| base::string16 html_attribute_value; |
| if (GetData().GetHtmlAttribute(html_attribute_name, &html_attribute_value)) { |
| SanitizeStringAttributeForUIAAriaProperty(html_attribute_value, |
| &html_attribute_value); |
| properties.push_back(base::ASCIIToUTF16(uia_aria_property) + L"=" + |
| html_attribute_value); |
| } |
| } |
| |
| SAFEARRAY* AXPlatformNodeWin::CreateUIAElementsArrayForRelation( |
| const ax::mojom::IntListAttribute& attribute) { |
| std::vector<int32_t> id_list = GetIntListAttribute(attribute); |
| base::EraseIf(id_list, [&](int32_t node_id) { |
| return !IsValidUiaRelationTarget(GetDelegate()->GetFromNodeID(node_id)); |
| }); |
| SAFEARRAY* propertyvalue = CreateUIAElementsArrayFromIdVector(id_list); |
| return propertyvalue; |
| } |
| |
| SAFEARRAY* AXPlatformNodeWin::CreateUIAElementsArrayForReverseRelation( |
| const ax::mojom::IntListAttribute& attribute) { |
| std::set<AXPlatformNode*> reverse_relations = |
| GetDelegate()->GetReverseRelations(attribute); |
| std::vector<int32_t> ax_platform_node_ids; |
| ax_platform_node_ids.reserve(reverse_relations.size()); |
| for (AXPlatformNode* ax_platform_node : reverse_relations) { |
| if (IsValidUiaRelationTarget(ax_platform_node)) { |
| ax_platform_node_ids.push_back( |
| static_cast<AXPlatformNodeWin*>(ax_platform_node)->GetData().id); |
| } |
| } |
| |
| return CreateUIAElementsArrayFromIdVector(ax_platform_node_ids); |
| } |
| |
| SAFEARRAY* AXPlatformNodeWin::CreateUIAElementsArrayFromIdVector( |
| std::vector<int32_t>& ids) { |
| if (ids.size() == 0) |
| return nullptr; |
| |
| SAFEARRAY* uia_array = SafeArrayCreateVector(VT_UNKNOWN, 0, ids.size()); |
| |
| LONG i = 0; |
| for (const auto& node_id : ids) { |
| AXPlatformNodeWin* node_win = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(node_id)); |
| |
| // The caller should validate that all incoming ids are valid relation |
| // targets so that this function does not need to re-check before allocating |
| // the SAFEARRAY. |
| DCHECK(IsValidUiaRelationTarget(node_win)); |
| SafeArrayPutElement(uia_array, &i, |
| static_cast<IRawElementProviderSimple*>(node_win)); |
| ++i; |
| } |
| |
| return uia_array; |
| } |
| |
| SAFEARRAY* AXPlatformNodeWin::CreateClickablePointArray() { |
| SAFEARRAY* clickable_point_array = SafeArrayCreateVector(VT_R8, 0, 2); |
| gfx::Point center = GetDelegate() |
| ->GetBoundsRect(AXCoordinateSystem::kScreen, |
| AXClippingBehavior::kUnclipped) |
| .CenterPoint(); |
| |
| double* double_array; |
| SafeArrayAccessData(clickable_point_array, |
| reinterpret_cast<void**>(&double_array)); |
| double_array[0] = center.x(); |
| double_array[1] = center.y(); |
| SafeArrayUnaccessData(clickable_point_array); |
| |
| return clickable_point_array; |
| } |
| |
| gfx::Vector2d AXPlatformNodeWin::CalculateUIAScrollPoint( |
| const ScrollAmount horizontal_amount, |
| const ScrollAmount vertical_amount) const { |
| if (!GetDelegate() || !IsScrollable()) |
| return {}; |
| |
| const gfx::Rect bounds = GetDelegate()->GetBoundsRect( |
| AXCoordinateSystem::kScreen, AXClippingBehavior::kClipped); |
| const int large_horizontal_change = bounds.width(); |
| const int large_vertical_change = bounds.height(); |
| |
| const HWND hwnd = GetDelegate()->GetTargetForNativeAccessibilityEvent(); |
| DCHECK(hwnd); |
| const float scale_factor = |
| display::win::ScreenWin::GetScaleFactorForHWND(hwnd); |
| const int small_change = |
| gfx::ToRoundedInt(kSmallScrollIncrement * scale_factor); |
| |
| const int x_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMin); |
| const int x_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMax); |
| const int y_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMin); |
| const int y_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMax); |
| |
| int x = GetIntAttribute(ax::mojom::IntAttribute::kScrollX); |
| int y = GetIntAttribute(ax::mojom::IntAttribute::kScrollY); |
| |
| switch (horizontal_amount) { |
| case ScrollAmount_LargeDecrement: |
| x -= large_horizontal_change; |
| break; |
| case ScrollAmount_LargeIncrement: |
| x += large_horizontal_change; |
| break; |
| case ScrollAmount_NoAmount: |
| break; |
| case ScrollAmount_SmallDecrement: |
| x -= small_change; |
| break; |
| case ScrollAmount_SmallIncrement: |
| x += small_change; |
| break; |
| } |
| x = std::min(x, x_max); |
| x = std::max(x, x_min); |
| |
| switch (vertical_amount) { |
| case ScrollAmount_LargeDecrement: |
| y -= large_vertical_change; |
| break; |
| case ScrollAmount_LargeIncrement: |
| y += large_vertical_change; |
| break; |
| case ScrollAmount_NoAmount: |
| break; |
| case ScrollAmount_SmallDecrement: |
| y -= small_change; |
| break; |
| case ScrollAmount_SmallIncrement: |
| y += small_change; |
| break; |
| } |
| y = std::min(y, y_max); |
| y = std::max(y, y_min); |
| |
| return {x, y}; |
| } |
| |
| // |
| // AXPlatformNodeBase implementation. |
| // |
| |
| void AXPlatformNodeWin::Dispose() { |
| Release(); |
| } |
| |
| void AXPlatformNodeWin::Destroy() { |
| RemoveAlertTarget(); |
| |
| // This will end up calling Dispose() which may result in deleting this object |
| // if there are no more outstanding references. |
| AXPlatformNodeBase::Destroy(); |
| } |
| |
| // |
| // AXPlatformNode implementation. |
| // |
| |
| gfx::NativeViewAccessible AXPlatformNodeWin::GetNativeViewAccessible() { |
| return this; |
| } |
| |
| void AXPlatformNodeWin::NotifyAccessibilityEvent(ax::mojom::Event event_type) { |
| // Menu items fire selection events but Windows screen readers work reliably |
| // with focus events. Remap here. |
| if (event_type == ax::mojom::Event::kSelection) { |
| // A menu item could have something other than a role of |
| // |ROLE_SYSTEM_MENUITEM|. Zoom modification controls for example have a |
| // role of button. |
| auto* parent = |
| static_cast<AXPlatformNodeWin*>(FromNativeViewAccessible(GetParent())); |
| if (MSAARole() == ROLE_SYSTEM_MENUITEM || |
| (parent && parent->MSAARole() == ROLE_SYSTEM_MENUPOPUP)) { |
| event_type = ax::mojom::Event::kFocus; |
| } |
| } |
| |
| if (base::Optional<DWORD> native_event = MSAAEvent(event_type)) { |
| HWND hwnd = GetDelegate()->GetTargetForNativeAccessibilityEvent(); |
| if (!hwnd) |
| return; |
| |
| ::NotifyWinEvent((*native_event), hwnd, OBJID_CLIENT, -GetUniqueId()); |
| } |
| |
| if (base::Optional<EVENTID> uia_event = UIAEvent(event_type)) |
| ::UiaRaiseAutomationEvent(this, (*uia_event)); |
| |
| // Keep track of objects that are a target of an alert event. |
| if (event_type == ax::mojom::Event::kAlert) |
| AddAlertTarget(); |
| } |
| |
| int AXPlatformNodeWin::GetIndexInParent() { |
| Microsoft::WRL::ComPtr<IDispatch> parent_dispatch; |
| Microsoft::WRL::ComPtr<IAccessible> parent_accessible; |
| if (S_OK != get_accParent(parent_dispatch.GetAddressOf())) |
| return -1; |
| if (S_OK != parent_dispatch.CopyTo(parent_accessible.GetAddressOf())) |
| return -1; |
| |
| LONG child_count = 0; |
| if (S_OK != parent_accessible->get_accChildCount(&child_count)) |
| return -1; |
| for (LONG index = 1; index <= child_count; ++index) { |
| base::win::ScopedVariant childid_index(index); |
| Microsoft::WRL::ComPtr<IDispatch> child_dispatch; |
| Microsoft::WRL::ComPtr<IAccessible> child_accessible; |
| if (S_OK == parent_accessible->get_accChild( |
| childid_index, child_dispatch.GetAddressOf()) && |
| S_OK == child_dispatch.CopyTo(child_accessible.GetAddressOf())) { |
| if (child_accessible.Get() == this) |
| return index - 1; |
| } |
| } |
| return -1; |
| } |
| |
| base::string16 AXPlatformNodeWin::GetHypertext() const { |
| // Hypertext of platform leaves, which internally are composite objects, are |
| // represented with the inner text of the internal composite object. |
| if (IsChildOfLeaf()) |
| return GetInnerText(); |
| |
| return hypertext_.hypertext; |
| } |
| |
| bool AXPlatformNodeWin::HasActiveComposition() const { |
| return active_composition_range_.end() > active_composition_range_.start(); |
| } |
| |
| gfx::Range AXPlatformNodeWin::GetActiveCompositionOffsets() const { |
| return active_composition_range_; |
| } |
| |
| void AXPlatformNodeWin::OnActiveComposition( |
| const gfx::Range& range, |
| const base::string16& active_composition_text, |
| bool is_composition_committed) { |
| // Cache the composition range that will be used when |
| // GetActiveComposition and GetConversionTarget is called in |
| // AXPlatformNodeTextProviderWin |
| active_composition_range_ = range; |
| // Fire the UiaTextEditTextChangedEvent |
| FireUiaTextEditTextChangedEvent(range, active_composition_text, |
| is_composition_committed); |
| } |
| |
| void AXPlatformNodeWin::FireUiaTextEditTextChangedEvent( |
| const gfx::Range& range, |
| const base::string16& active_composition_text, |
| bool is_composition_committed) { |
| if (!::switches::IsExperimentalAccessibilityPlatformUIAEnabled()) { |
| return; |
| } |
| |
| // This API is only supported from Win8.1 onwards |
| // Check if the function pointer is valid or not |
| using UiaRaiseTextEditTextChangedEventFunction = HRESULT(WINAPI*)( |
| IRawElementProviderSimple*, TextEditChangeType, SAFEARRAY*); |
| UiaRaiseTextEditTextChangedEventFunction text_edit_text_changed_func = |
| reinterpret_cast<UiaRaiseTextEditTextChangedEventFunction>( |
| ::GetProcAddress(GetModuleHandle(L"uiautomationcore.dll"), |
| "UiaRaiseTextEditTextChangedEvent")); |
| if (!text_edit_text_changed_func) { |
| return; |
| } |
| |
| TextEditChangeType text_edit_change_type = |
| is_composition_committed ? TextEditChangeType_CompositionFinalized |
| : TextEditChangeType_Composition; |
| // Composition has been finalized by TSF |
| base::win::ScopedBstr composition_text(active_composition_text.c_str()); |
| base::win::ScopedSafearray changed_data( |
| SafeArrayCreateVector(VT_BSTR /* element type */, 0 /* lower bound */, |
| 1 /* number of elements */)); |
| if (!changed_data.Get()) { |
| return; |
| } |
| |
| long index = 0; |
| HRESULT hr = |
| SafeArrayPutElement(changed_data.Get(), &index, composition_text); |
| |
| if (FAILED(hr)) { |
| return; |
| } else { |
| // Fire the UiaRaiseTextEditTextChangedEvent |
| text_edit_text_changed_func(this, text_edit_change_type, |
| changed_data.Release()); |
| } |
| } |
| |
| bool AXPlatformNodeWin::IsValidUiaRelationTarget( |
| AXPlatformNode* ax_platform_node) { |
| if (!ax_platform_node) |
| return false; |
| if (!ax_platform_node->GetDelegate()) |
| return false; |
| |
| // This is needed for get_FragmentRoot. |
| if (!ax_platform_node->GetDelegate()->GetTargetForNativeAccessibilityEvent()) |
| return false; |
| |
| return true; |
| } |
| |
| // |
| // IAccessible implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::accHitTest(LONG x_left, |
| LONG y_top, |
| VARIANT* child) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_HIT_TEST); |
| COM_OBJECT_VALIDATE_1_ARG(child); |
| |
| gfx::Point point(x_left, y_top); |
| if (!GetDelegate() |
| ->GetBoundsRect(AXCoordinateSystem::kScreen, |
| AXClippingBehavior::kClipped) |
| .Contains(point)) { |
| // Return S_FALSE and VT_EMPTY when outside the object's boundaries. |
| child->vt = VT_EMPTY; |
| return S_FALSE; |
| } |
| |
| gfx::NativeViewAccessible hit_child = |
| GetDelegate()->HitTestSync(x_left, y_top); |
| if (!hit_child) { |
| child->vt = VT_EMPTY; |
| return S_FALSE; |
| } |
| |
| if (hit_child == this) { |
| // This object is the best match, so return CHILDID_SELF. It's tempting to |
| // simplify the logic and use VT_DISPATCH everywhere, but the Windows |
| // call AccessibleObjectFromPoint will keep calling accHitTest until some |
| // object returns CHILDID_SELF. |
| child->vt = VT_I4; |
| child->lVal = CHILDID_SELF; |
| return S_OK; |
| } |
| |
| // Call accHitTest recursively on the result, which may be a recursive call |
| // to this function or it may be overridden, for example in the case of a |
| // WebView. |
| HRESULT result = hit_child->accHitTest(x_left, y_top, child); |
| |
| // If the recursive call returned CHILDID_SELF, we have to convert that |
| // into a VT_DISPATCH for the return value to this call. |
| if (S_OK == result && child->vt == VT_I4 && child->lVal == CHILDID_SELF) { |
| child->vt = VT_DISPATCH; |
| child->pdispVal = hit_child; |
| // Always increment ref when returning a reference to a COM object. |
| child->pdispVal->AddRef(); |
| } |
| return result; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::accDoDefaultAction(VARIANT var_id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_DO_DEFAULT_ACTION); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_AND_GET_TARGET(var_id, target); |
| AXActionData data; |
| data.action = ax::mojom::Action::kDoDefault; |
| |
| if (target->GetDelegate()->AccessibilityPerformAction(data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::accLocation(LONG* x_left, |
| LONG* y_top, |
| LONG* width, |
| LONG* height, |
| VARIANT var_id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_LOCATION); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_4_ARGS_AND_GET_TARGET(var_id, x_left, y_top, width, |
| height, target); |
| |
| gfx::Rect bounds = target->GetDelegate()->GetBoundsRect( |
| AXCoordinateSystem::kScreen, AXClippingBehavior::kUnclipped); |
| *x_left = bounds.x(); |
| *y_top = bounds.y(); |
| *width = bounds.width(); |
| *height = bounds.height(); |
| |
| if (bounds.IsEmpty()) |
| return S_FALSE; |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::accNavigate(LONG nav_dir, |
| VARIANT start, |
| VARIANT* end) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_NAVIGATE); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(start, end, target); |
| end->vt = VT_EMPTY; |
| if ((nav_dir == NAVDIR_FIRSTCHILD || nav_dir == NAVDIR_LASTCHILD) && |
| V_VT(&start) == VT_I4 && V_I4(&start) != CHILDID_SELF) { |
| // MSAA states that navigating to first/last child can only be from self. |
| return E_INVALIDARG; |
| } |
| |
| IAccessible* result = nullptr; |
| switch (nav_dir) { |
| case NAVDIR_FIRSTCHILD: |
| if (GetDelegate()->GetChildCount() > 0) |
| result = GetDelegate()->ChildAtIndex(0); |
| break; |
| |
| case NAVDIR_LASTCHILD: |
| if (GetDelegate()->GetChildCount() > 0) |
| result = |
| GetDelegate()->ChildAtIndex(GetDelegate()->GetChildCount() - 1); |
| break; |
| |
| case NAVDIR_NEXT: { |
| AXPlatformNodeBase* next = target->GetNextSibling(); |
| if (next) |
| result = next->GetNativeViewAccessible(); |
| break; |
| } |
| |
| case NAVDIR_PREVIOUS: { |
| AXPlatformNodeBase* previous = target->GetPreviousSibling(); |
| if (previous) |
| result = previous->GetNativeViewAccessible(); |
| break; |
| } |
| |
| case NAVDIR_DOWN: { |
| // This direction is not implemented except in tables. |
| if (!GetTableRow() || !GetTableRowSpan() || !GetTableColumn()) |
| return E_NOTIMPL; |
| |
| AXPlatformNodeBase* next = target->GetTableCell( |
| *GetTableRow() + *GetTableRowSpan(), *GetTableColumn()); |
| if (!next) |
| return S_OK; |
| |
| result = next->GetNativeViewAccessible(); |
| break; |
| } |
| |
| case NAVDIR_UP: { |
| // This direction is not implemented except in tables. |
| if (!GetTableRow() || !GetTableColumn()) |
| return E_NOTIMPL; |
| |
| AXPlatformNodeBase* next = |
| target->GetTableCell(*GetTableRow() - 1, *GetTableColumn()); |
| if (!next) |
| return S_OK; |
| |
| result = next->GetNativeViewAccessible(); |
| break; |
| } |
| |
| case NAVDIR_LEFT: { |
| // This direction is not implemented except in tables. |
| if (!GetTableRow() || !GetTableColumn()) |
| return E_NOTIMPL; |
| |
| AXPlatformNodeBase* next = |
| target->GetTableCell(*GetTableRow(), *GetTableColumn() - 1); |
| if (!next) |
| return S_OK; |
| |
| result = next->GetNativeViewAccessible(); |
| break; |
| } |
| |
| case NAVDIR_RIGHT: { |
| // This direction is not implemented except in tables. |
| |
| if (!GetTableRow() || !GetTableColumn() || !GetTableColumnSpan()) |
| return E_NOTIMPL; |
| |
| AXPlatformNodeBase* next = target->GetTableCell( |
| *GetTableRow(), *GetTableColumn() + *GetTableColumnSpan()); |
| if (!next) |
| return S_OK; |
| |
| result = next->GetNativeViewAccessible(); |
| break; |
| } |
| } |
| |
| if (!result) |
| return S_FALSE; |
| |
| end->vt = VT_DISPATCH; |
| end->pdispVal = result; |
| // Always increment ref when returning a reference to a COM object. |
| end->pdispVal->AddRef(); |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accChild(VARIANT var_child, |
| IDispatch** disp_child) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_CHILD); |
| |
| *disp_child = nullptr; |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_AND_GET_TARGET(var_child, target); |
| |
| *disp_child = target; |
| (*disp_child)->AddRef(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accChildCount(LONG* child_count) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_CHILD_COUNT); |
| COM_OBJECT_VALIDATE_1_ARG(child_count); |
| *child_count = GetDelegate()->GetChildCount(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accDefaultAction(VARIANT var_id, |
| BSTR* def_action) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_DEFAULT_ACTION); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, def_action, target); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| int action; |
| if (!target->GetIntAttribute(ax::mojom::IntAttribute::kDefaultActionVerb, |
| &action)) { |
| *def_action = nullptr; |
| return S_FALSE; |
| } |
| |
| base::string16 action_verb = ActionVerbToLocalizedString( |
| static_cast<ax::mojom::DefaultActionVerb>(action)); |
| if (action_verb.empty()) { |
| *def_action = nullptr; |
| return S_FALSE; |
| } |
| |
| *def_action = SysAllocString(action_verb.c_str()); |
| DCHECK(def_action); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accDescription(VARIANT var_id, |
| BSTR* desc) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_DESCRIPTION); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, desc, target); |
| |
| return target->GetStringAttributeAsBstr( |
| ax::mojom::StringAttribute::kDescription, desc); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accFocus(VARIANT* focus_child) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_FOCUS); |
| COM_OBJECT_VALIDATE_1_ARG(focus_child); |
| gfx::NativeViewAccessible focus_accessible = GetDelegate()->GetFocus(); |
| if (focus_accessible == this) { |
| focus_child->vt = VT_I4; |
| focus_child->lVal = CHILDID_SELF; |
| } else if (focus_accessible) { |
| focus_child->vt = VT_DISPATCH; |
| focus_child->pdispVal = focus_accessible; |
| focus_child->pdispVal->AddRef(); |
| return S_OK; |
| } else { |
| focus_child->vt = VT_EMPTY; |
| } |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accKeyboardShortcut(VARIANT var_id, |
| BSTR* acc_key) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_KEYBOARD_SHORTCUT); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, acc_key, target); |
| |
| return target->GetStringAttributeAsBstr( |
| ax::mojom::StringAttribute::kKeyShortcuts, acc_key); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accName(VARIANT var_id, BSTR* name_bstr) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_NAME); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, name_bstr, target); |
| |
| for (IAccessible2UsageObserver& observer : |
| GetIAccessible2UsageObserverList()) { |
| observer.OnAccNameCalled(); |
| } |
| |
| bool has_name = target->HasStringAttribute(ax::mojom::StringAttribute::kName); |
| base::string16 name = |
| target->GetString16Attribute(ax::mojom::StringAttribute::kName); |
| auto status = GetData().GetImageAnnotationStatus(); |
| switch (status) { |
| case ax::mojom::ImageAnnotationStatus::kNone: |
| case ax::mojom::ImageAnnotationStatus::kWillNotAnnotateDueToScheme: |
| case ax::mojom::ImageAnnotationStatus::kIneligibleForAnnotation: |
| case ax::mojom::ImageAnnotationStatus::kSilentlyEligibleForAnnotation: |
| break; |
| |
| case ax::mojom::ImageAnnotationStatus::kEligibleForAnnotation: |
| case ax::mojom::ImageAnnotationStatus::kAnnotationPending: |
| case ax::mojom::ImageAnnotationStatus::kAnnotationEmpty: |
| case ax::mojom::ImageAnnotationStatus::kAnnotationAdult: |
| case ax::mojom::ImageAnnotationStatus::kAnnotationProcessFailed: |
| AppendTextToString( |
| GetDelegate()->GetLocalizedStringForImageAnnotationStatus(status), |
| &name); |
| break; |
| |
| case ax::mojom::ImageAnnotationStatus::kAnnotationSucceeded: |
| AppendTextToString( |
| GetString16Attribute(ax::mojom::StringAttribute::kImageAnnotation), |
| &name); |
| break; |
| } |
| |
| if (name.empty() && !has_name) |
| return S_FALSE; |
| |
| *name_bstr = SysAllocString(name.c_str()); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accParent(IDispatch** disp_parent) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_PARENT); |
| COM_OBJECT_VALIDATE_1_ARG(disp_parent); |
| *disp_parent = GetParent(); |
| if (*disp_parent) { |
| (*disp_parent)->AddRef(); |
| return S_OK; |
| } |
| |
| return S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accRole(VARIANT var_id, VARIANT* role) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_ROLE); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, role, target); |
| |
| // For historical reasons, we return a string (typically |
| // containing the HTML tag name) as the MSAA role, rather |
| // than a int. |
| std::string role_string = |
| base::ToUpperASCII(target->StringOverrideForMSAARole()); |
| if (!role_string.empty()) { |
| role->vt = VT_BSTR; |
| std::wstring wsTmp(role_string.begin(), role_string.end()); |
| role->bstrVal = SysAllocString(wsTmp.c_str()); |
| return S_OK; |
| } |
| |
| role->vt = VT_I4; |
| role->lVal = target->MSAARole(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accState(VARIANT var_id, VARIANT* state) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_STATE); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, state, target); |
| state->vt = VT_I4; |
| state->lVal = target->MSAAState(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accHelp(VARIANT var_id, BSTR* help) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_HELP); |
| COM_OBJECT_VALIDATE_1_ARG(help); |
| return S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accValue(VARIANT var_id, BSTR* value) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_VALUE); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_1_ARG_AND_GET_TARGET(var_id, value, target); |
| *value = GetValueAttributeAsBstr(target); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::put_accValue(VARIANT var_id, BSTR new_value) { |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_AND_GET_TARGET(var_id, target); |
| if (!new_value) |
| return E_INVALIDARG; |
| |
| AXActionData data; |
| data.action = ax::mojom::Action::kSetValue; |
| data.value = base::WideToUTF8(new_value); |
| if (target->GetDelegate()->AccessibilityPerformAction(data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accSelection(VARIANT* selected) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_SELECTION); |
| COM_OBJECT_VALIDATE_1_ARG(selected); |
| std::vector<Microsoft::WRL::ComPtr<IDispatch>> selected_nodes; |
| for (int i = 0; i < GetDelegate()->GetChildCount(); ++i) { |
| auto* node = static_cast<AXPlatformNodeWin*>( |
| FromNativeViewAccessible(GetDelegate()->ChildAtIndex(i))); |
| if (node && |
| node->GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) { |
| Microsoft::WRL::ComPtr<IDispatch> node_idispatch; |
| if (SUCCEEDED(node->QueryInterface(IID_PPV_ARGS(&node_idispatch)))) |
| selected_nodes.push_back(node_idispatch); |
| } |
| } |
| |
| if (selected_nodes.empty()) { |
| selected->vt = VT_EMPTY; |
| return S_OK; |
| } |
| |
| if (selected_nodes.size() == 1) { |
| selected->vt = VT_DISPATCH; |
| selected->pdispVal = selected_nodes[0].Detach(); |
| return S_OK; |
| } |
| |
| // Multiple items are selected. |
| LONG selected_count = static_cast<LONG>(selected_nodes.size()); |
| auto* enum_variant = new base::win::EnumVariant(selected_count); |
| enum_variant->AddRef(); |
| for (LONG i = 0; i < selected_count; ++i) { |
| enum_variant->ItemAt(i)->vt = VT_DISPATCH; |
| enum_variant->ItemAt(i)->pdispVal = selected_nodes[i].Detach(); |
| } |
| selected->vt = VT_UNKNOWN; |
| HRESULT hr = enum_variant->QueryInterface(IID_PPV_ARGS(&V_UNKNOWN(selected))); |
| enum_variant->Release(); |
| return hr; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::accSelect(LONG flagsSelect, VARIANT var_id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ACC_SELECT); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_AND_GET_TARGET(var_id, target); |
| |
| if (flagsSelect & SELFLAG_TAKEFOCUS) { |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kFocus; |
| target->GetDelegate()->AccessibilityPerformAction(action_data); |
| return S_OK; |
| } |
| |
| return S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accHelpTopic(BSTR* help_file, |
| VARIANT var_id, |
| LONG* topic_id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACC_HELP_TOPIC); |
| AXPlatformNodeWin* target; |
| COM_OBJECT_VALIDATE_VAR_ID_2_ARGS_AND_GET_TARGET(var_id, help_file, topic_id, |
| target); |
| if (help_file) { |
| *help_file = nullptr; |
| } |
| if (topic_id) { |
| *topic_id = static_cast<LONG>(-1); |
| } |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::put_accName(VARIANT var_id, BSTR put_name) { |
| // TODO(dougt): We may want to collect an API histogram here. |
| // Deprecated. |
| return E_NOTIMPL; |
| } |
| |
| // |
| // IAccessible2 implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::role(LONG* role) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ROLE); |
| COM_OBJECT_VALIDATE_1_ARG(role); |
| |
| *role = ComputeIA2Role(); |
| // If we didn't explicitly set the IAccessible2 role, make it the same |
| // as the MSAA role. |
| if (!*role) |
| *role = MSAARole(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_states(AccessibleStates* states) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_STATES); |
| COM_OBJECT_VALIDATE_1_ARG(states); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| *states = ComputeIA2State(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_uniqueID(LONG* id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_UNIQUE_ID); |
| COM_OBJECT_VALIDATE_1_ARG(id); |
| *id = -GetUniqueId(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_windowHandle(HWND* window_handle) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_WINDOW_HANDLE); |
| COM_OBJECT_VALIDATE_1_ARG(window_handle); |
| *window_handle = GetDelegate()->GetTargetForNativeAccessibilityEvent(); |
| return *window_handle ? S_OK : S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_relationTargetsOfType(BSTR type_bstr, |
| LONG max_targets, |
| IUnknown*** targets, |
| LONG* n_targets) { |
| COM_OBJECT_VALIDATE_2_ARGS(targets, n_targets); |
| if (!type_bstr) |
| return E_INVALIDARG; |
| |
| *n_targets = 0; |
| *targets = nullptr; |
| |
| // Special case for relations of type "alerts". |
| base::string16 type(type_bstr); |
| if (type == L"alerts") { |
| // Collect all of the objects that have had an alert fired on them that |
| // are a descendant of this object. |
| std::vector<AXPlatformNodeWin*> alert_targets; |
| for (auto iter = g_alert_targets.Get().begin(); |
| iter != g_alert_targets.Get().end(); ++iter) { |
| AXPlatformNodeWin* target = *iter; |
| if (IsDescendant(target)) |
| alert_targets.push_back(target); |
| } |
| |
| LONG count = static_cast<LONG>(alert_targets.size()); |
| if (count == 0) |
| return S_FALSE; |
| |
| // Don't return more targets than max_targets - but note that the caller |
| // is allowed to specify max_targets=0 to mean no limit. |
| if (max_targets > 0 && count > max_targets) |
| count = max_targets; |
| |
| // Return the number of targets. |
| *n_targets = count; |
| |
| // Allocate COM memory for the result array and populate it. |
| *targets = |
| static_cast<IUnknown**>(CoTaskMemAlloc(count * sizeof(IUnknown*))); |
| for (LONG i = 0; i < count; ++i) { |
| (*targets)[i] = static_cast<IAccessible*>(alert_targets[i]); |
| (*targets)[i]->AddRef(); |
| } |
| return S_OK; |
| } |
| |
| base::string16 relation_type; |
| std::set<AXPlatformNode*> enumerated_targets; |
| int found = AXPlatformRelationWin::EnumerateRelationships( |
| this, 0, type, &relation_type, &enumerated_targets); |
| if (found == 0) |
| return S_FALSE; |
| |
| // Don't return more targets than max_targets - but note that the caller |
| // is allowed to specify max_targets=0 to mean no limit. |
| int count = static_cast<int>(enumerated_targets.size()); |
| if (max_targets > 0 && count > max_targets) |
| count = max_targets; |
| |
| // Allocate COM memory for the result array and populate it. |
| *targets = static_cast<IUnknown**>(CoTaskMemAlloc(count * sizeof(IUnknown*))); |
| int index = 0; |
| for (AXPlatformNode* target : enumerated_targets) { |
| if (target) { |
| AXPlatformNodeWin* win_target = static_cast<AXPlatformNodeWin*>(target); |
| (*targets)[index] = static_cast<IAccessible*>(win_target); |
| (*targets)[index]->AddRef(); |
| if (++index > count) |
| break; |
| } |
| } |
| *n_targets = index; |
| return index > 0 ? S_OK : S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_attributes(BSTR* attributes) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_IA2_GET_ATTRIBUTES); |
| COM_OBJECT_VALIDATE_1_ARG(attributes); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| *attributes = nullptr; |
| |
| base::string16 attributes_str; |
| std::vector<base::string16> computed_attributes = ComputeIA2Attributes(); |
| for (const base::string16& attribute : computed_attributes) |
| attributes_str += attribute + L';'; |
| |
| if (attributes_str.empty()) |
| return S_FALSE; |
| |
| *attributes = SysAllocString(attributes_str.c_str()); |
| DCHECK(*attributes); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_indexInParent(LONG* index_in_parent) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_INDEX_IN_PARENT); |
| COM_OBJECT_VALIDATE_1_ARG(index_in_parent); |
| *index_in_parent = GetIndexInParent(); |
| if (*index_in_parent < 0) |
| return E_FAIL; |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nRelations(LONG* n_relations) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_RELATIONS); |
| COM_OBJECT_VALIDATE_1_ARG(n_relations); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| int count = AXPlatformRelationWin::EnumerateRelationships( |
| this, -1, base::string16(), nullptr, nullptr); |
| *n_relations = count; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_relation(LONG relation_index, |
| IAccessibleRelation** relation) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_RELATION); |
| COM_OBJECT_VALIDATE_1_ARG(relation); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::string16 relation_type; |
| std::set<AXPlatformNode*> targets; |
| int found = AXPlatformRelationWin::EnumerateRelationships( |
| this, relation_index, base::string16(), &relation_type, &targets); |
| if (found == 0) |
| return E_INVALIDARG; |
| |
| CComObject<AXPlatformRelationWin>* relation_obj; |
| HRESULT hr = CComObject<AXPlatformRelationWin>::CreateInstance(&relation_obj); |
| DCHECK(SUCCEEDED(hr)); |
| relation_obj->AddRef(); |
| relation_obj->Initialize(relation_type); |
| for (AXPlatformNode* target : targets) { |
| if (target) |
| relation_obj->AddTarget(static_cast<AXPlatformNodeWin*>(target)); |
| } |
| |
| // Maintain references to all relations returned by this object. |
| // Every time this object changes state, invalidate them. |
| relations_.push_back(relation_obj); |
| *relation = relation_obj; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_relations(LONG max_relations, |
| IAccessibleRelation** relations, |
| LONG* n_relations) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_RELATIONS); |
| COM_OBJECT_VALIDATE_2_ARGS(relations, n_relations); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| LONG count; |
| HRESULT hr = get_nRelations(&count); |
| if (!SUCCEEDED(hr)) |
| return hr; |
| count = std::min(count, max_relations); |
| *n_relations = count; |
| for (LONG i = 0; i < count; i++) { |
| hr = get_relation(i, &relations[i]); |
| if (!SUCCEEDED(hr)) |
| return hr; |
| } |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_groupPosition( |
| LONG* group_level, |
| LONG* similar_items_in_group, |
| LONG* position_in_group) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_GROUP_POSITION); |
| COM_OBJECT_VALIDATE_3_ARGS(group_level, similar_items_in_group, |
| position_in_group); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| *group_level = GetIntAttribute(ax::mojom::IntAttribute::kHierarchicalLevel); |
| *similar_items_in_group = GetSetSize().value_or(0); |
| *position_in_group = GetPosInSet().value_or(0); |
| |
| if (!*group_level && !*similar_items_in_group && !*position_in_group) |
| return S_FALSE; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_localizedExtendedRole( |
| BSTR* localized_extended_role) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCALIZED_EXTENDED_ROLE); |
| COM_OBJECT_VALIDATE_1_ARG(localized_extended_role); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::string16 role_description = GetRoleDescription(); |
| if (base::ContainsOnlyChars(role_description, base::kWhitespaceUTF16)) |
| return S_FALSE; |
| |
| *localized_extended_role = SysAllocString(role_description.c_str()); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_attribute(BSTR name, VARIANT* attribute) { |
| COM_OBJECT_VALIDATE_1_ARG(attribute); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::string16 desired_attribute(name); |
| |
| // Each computed attribute from ComputeIA2Attributes is a string of |
| // the form "key:value". Search for strings that start with the |
| // attribute name plus a colon. |
| base::string16 prefix = desired_attribute + L":"; |
| |
| // Let's accept any case. |
| const auto compare_case = base::CompareCase::INSENSITIVE_ASCII; |
| |
| const std::vector<base::string16> computed_attributes = |
| ComputeIA2Attributes(); |
| for (const base::string16& computed_attribute : computed_attributes) { |
| if (base::StartsWith(computed_attribute, prefix, compare_case)) { |
| base::string16 value = computed_attribute.substr(prefix.size()); |
| attribute->vt = VT_BSTR; |
| attribute->bstrVal = SysAllocString(value.c_str()); |
| return S_OK; |
| } |
| } |
| |
| return S_FALSE; |
| } |
| |
| // |
| // IAccessible2 methods not implemented. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_extendedRole(BSTR* extended_role) { |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::scrollTo(enum IA2ScrollType ia2_scroll_type) { |
| COM_OBJECT_VALIDATE(); |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_IA2_SCROLL_TO); |
| |
| switch (ia2_scroll_type) { |
| case IA2_SCROLL_TYPE_TOP_LEFT: |
| ScrollToNode(ScrollType::TopLeft); |
| break; |
| case IA2_SCROLL_TYPE_BOTTOM_RIGHT: |
| ScrollToNode(ScrollType::BottomRight); |
| break; |
| case IA2_SCROLL_TYPE_TOP_EDGE: |
| ScrollToNode(ScrollType::TopEdge); |
| break; |
| case IA2_SCROLL_TYPE_BOTTOM_EDGE: |
| ScrollToNode(ScrollType::BottomEdge); |
| break; |
| case IA2_SCROLL_TYPE_LEFT_EDGE: |
| ScrollToNode(ScrollType::LeftEdge); |
| break; |
| case IA2_SCROLL_TYPE_RIGHT_EDGE: |
| ScrollToNode(ScrollType::RightEdge); |
| break; |
| case IA2_SCROLL_TYPE_ANYWHERE: |
| ScrollToNode(ScrollType::Anywhere); |
| break; |
| } |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::scrollToPoint( |
| enum IA2CoordinateType coordinate_type, |
| LONG x, |
| LONG y) { |
| COM_OBJECT_VALIDATE(); |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_TO_POINT); |
| |
| // Convert to screen-relative coordinates if necessary. |
| gfx::Point scroll_to(x, y); |
| if (coordinate_type == IA2_COORDTYPE_PARENT_RELATIVE) { |
| if (GetParent()) { |
| AXPlatformNodeBase* base = FromNativeViewAccessible(GetParent()); |
| scroll_to += base->GetDelegate() |
| ->GetBoundsRect(AXCoordinateSystem::kScreen, |
| AXClippingBehavior::kUnclipped) |
| .OffsetFromOrigin(); |
| } |
| } else if (coordinate_type != IA2_COORDTYPE_SCREEN_RELATIVE) { |
| return E_INVALIDARG; |
| } |
| |
| ui::AXActionData action_data; |
| action_data.target_node_id = GetData().id; |
| action_data.action = ax::mojom::Action::kScrollToPoint; |
| action_data.target_point = scroll_to; |
| GetDelegate()->AccessibilityPerformAction(action_data); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nExtendedStates(LONG* n_extended_states) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_EXTENDED_STATES); |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_extendedStates(LONG max_extended_states, |
| BSTR** extended_states, |
| LONG* n_extended_states) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_EXTENDED_STATES); |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::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); |
| |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_locale(IA2Locale* locale) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_LOCALE); |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accessibleWithCaret(IUnknown** accessible, |
| LONG* caret_offset) { |
| return E_NOTIMPL; |
| } |
| |
| // |
| // IAccessible2_3 implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectionRanges(IA2Range** ranges, |
| LONG* nRanges) { |
| COM_OBJECT_VALIDATE_2_ARGS(ranges, nRanges); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| int32_t anchor_id = GetDelegate()->GetTreeData().sel_anchor_object_id; |
| auto* anchor_node = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(anchor_id)); |
| if (!anchor_node) |
| return E_FAIL; |
| int anchor_offset = int{GetDelegate()->GetTreeData().sel_anchor_offset}; |
| |
| int32_t focus_id = GetDelegate()->GetTreeData().sel_focus_object_id; |
| auto* focus_node = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(focus_id)); |
| if (!focus_node) |
| return E_FAIL; |
| int focus_offset = int{GetDelegate()->GetTreeData().sel_focus_offset}; |
| |
| if (!IsDescendant(anchor_node) || !IsDescendant(focus_node)) |
| return S_FALSE; // No selection within this subtree. |
| |
| *ranges = reinterpret_cast<IA2Range*>(CoTaskMemAlloc(sizeof(IA2Range))); |
| anchor_node->AddRef(); |
| ranges[0]->anchor = static_cast<IAccessible*>(anchor_node); |
| ranges[0]->anchorOffset = anchor_offset; |
| focus_node->AddRef(); |
| ranges[0]->active = static_cast<IAccessible*>(focus_node); |
| ranges[0]->activeOffset = focus_offset; |
| *nRanges = 1; |
| return S_OK; |
| } |
| |
| // |
| // IAccessible2_4 implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::setSelectionRanges(LONG nRanges, |
| IA2Range* ranges) { |
| COM_OBJECT_VALIDATE(); |
| // Blink supports only one selection range for now. |
| if (nRanges != 1) |
| return E_INVALIDARG; |
| if (!ranges) |
| return E_INVALIDARG; |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| if (!ranges->anchor) |
| return E_INVALIDARG; |
| if (!ranges->active) |
| return E_INVALIDARG; |
| |
| Microsoft::WRL::ComPtr<IAccessible> anchor; |
| if (FAILED(ranges->anchor->QueryInterface(IID_PPV_ARGS(&anchor)))) |
| return E_INVALIDARG; |
| |
| Microsoft::WRL::ComPtr<IAccessible> focus; |
| if (FAILED(ranges->active->QueryInterface(IID_PPV_ARGS(&focus)))) |
| return E_INVALIDARG; |
| |
| const auto* anchor_node = |
| static_cast<AXPlatformNodeWin*>(FromNativeViewAccessible(anchor.Get())); |
| const auto* focus_node = |
| static_cast<AXPlatformNodeWin*>(FromNativeViewAccessible(focus.Get())); |
| if (!anchor_node || !focus_node) |
| return E_INVALIDARG; |
| |
| if (ranges->anchorOffset < 0 || ranges->activeOffset < 0) |
| return E_INVALIDARG; |
| |
| if (anchor_node->IsTextOnlyObject() || anchor_node->IsPlainTextField()) { |
| if (size_t{ranges->anchorOffset} > anchor_node->GetHypertext().length()) { |
| return E_INVALIDARG; |
| } |
| } else { |
| if (ranges->anchorOffset > anchor_node->GetChildCount()) |
| return E_INVALIDARG; |
| } |
| |
| if (focus_node->IsTextOnlyObject() || focus_node->IsPlainTextField()) { |
| if (size_t{ranges->activeOffset} > focus_node->GetHypertext().length()) |
| return E_INVALIDARG; |
| } else { |
| if (ranges->activeOffset > focus_node->GetChildCount()) |
| return E_INVALIDARG; |
| } |
| |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kSetSelection; |
| action_data.anchor_node_id = anchor_node->GetData().id; |
| action_data.anchor_offset = int32_t{ranges->anchorOffset}; |
| action_data.focus_node_id = focus_node->GetData().id; |
| action_data.focus_offset = int32_t{ranges->activeOffset}; |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return S_FALSE; |
| } |
| |
| // |
| // IAccessibleEx implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetObjectForChild(LONG child_id, |
| IAccessibleEx** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_OBJECT_FOR_CHILD); |
| // No support for child IDs in this implementation. |
| COM_OBJECT_VALIDATE_1_ARG(result); |
| *result = nullptr; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetIAccessiblePair(IAccessible** accessible, |
| LONG* child_id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_IACCESSIBLE_PAIR); |
| COM_OBJECT_VALIDATE_2_ARGS(accessible, child_id); |
| *accessible = static_cast<IAccessible*>(this); |
| (*accessible)->AddRef(); |
| *child_id = CHILDID_SELF; |
| return S_OK; |
| } |
| |
| // |
| // IExpandCollapseProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Collapse() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_EXPANDCOLLAPSE_COLLAPSE); |
| UIA_VALIDATE_CALL(); |
| if (GetData().GetRestriction() == ax::mojom::Restriction::kDisabled) |
| return UIA_E_ELEMENTNOTAVAILABLE; |
| |
| if (GetData().HasState(ax::mojom::State::kCollapsed)) |
| return UIA_E_INVALIDOPERATION; |
| |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kDoDefault; |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Expand() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_EXPANDCOLLAPSE_EXPAND); |
| UIA_VALIDATE_CALL(); |
| if (GetData().GetRestriction() == ax::mojom::Restriction::kDisabled) |
| return UIA_E_ELEMENTNOTAVAILABLE; |
| |
| if (GetData().HasState(ax::mojom::State::kExpanded)) |
| return UIA_E_INVALIDOPERATION; |
| |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kDoDefault; |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_ExpandCollapseState( |
| ExpandCollapseState* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM( |
| UMA_API_EXPANDCOLLAPSE_GET_EXPANDCOLLAPSESTATE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| const AXNodeData& data = GetData(); |
| if (data.HasState(ax::mojom::State::kExpanded)) { |
| *result = ExpandCollapseState_Expanded; |
| } else if (data.HasState(ax::mojom::State::kCollapsed)) { |
| *result = ExpandCollapseState_Collapsed; |
| } else { |
| *result = ExpandCollapseState_LeafNode; |
| } |
| return S_OK; |
| } |
| |
| // |
| // IGridItemProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_Column(int* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRIDITEM_GET_COLUMN); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| base::Optional<int> column = GetTableColumn(); |
| if (!column) |
| return E_FAIL; |
| *result = *column; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_ColumnSpan(int* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRIDITEM_GET_COLUMNSPAN); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| base::Optional<int> column_span = GetTableColumnSpan(); |
| if (!column_span) |
| return E_FAIL; |
| *result = *column_span; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_ContainingGrid( |
| IRawElementProviderSimple** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRIDITEM_GET_CONTAININGGRID); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| AXPlatformNodeBase* table = GetTable(); |
| if (!table) |
| return E_FAIL; |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(table); |
| node_win->AddRef(); |
| *result = static_cast<IRawElementProviderSimple*>(node_win); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_Row(int* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRIDITEM_GET_ROW); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| base::Optional<int> row = GetTableRow(); |
| if (!row) |
| return E_FAIL; |
| *result = *row; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_RowSpan(int* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRIDITEM_GET_ROWSPAN); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| base::Optional<int> row_span = GetTableRowSpan(); |
| if (!row_span) |
| return E_FAIL; |
| *result = *row_span; |
| return S_OK; |
| } |
| |
| // |
| // IGridProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetItem(int row, |
| int column, |
| IRawElementProviderSimple** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRID_GETITEM); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| AXPlatformNodeBase* cell = GetTableCell(row, column); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(cell); |
| node_win->AddRef(); |
| *result = static_cast<IRawElementProviderSimple*>(node_win); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_RowCount(int* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRID_GET_ROWCOUNT); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| base::Optional<int> row_count = GetTableAriaRowCount(); |
| if (!row_count) |
| return E_UNEXPECTED; |
| *result = *row_count; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_ColumnCount(int* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GRID_GET_COLUMNCOUNT); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| base::Optional<int> column_count = GetTableAriaColumnCount(); |
| if (!column_count) |
| return E_UNEXPECTED; |
| *result = *column_count; |
| return S_OK; |
| } |
| |
| // |
| // IInvokeProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Invoke() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_INVOKE_INVOKE); |
| UIA_VALIDATE_CALL(); |
| |
| if (GetData().GetRestriction() == ax::mojom::Restriction::kDisabled) |
| return UIA_E_ELEMENTNOTENABLED; |
| |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kDoDefault; |
| GetDelegate()->AccessibilityPerformAction(action_data); |
| |
| return S_OK; |
| } |
| |
| // |
| // IScrollItemProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::ScrollIntoView() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLLITEM_SCROLLINTOVIEW); |
| UIA_VALIDATE_CALL(); |
| gfx::Rect r = gfx::ToEnclosingRect(GetData().relative_bounds.bounds); |
| r -= r.OffsetFromOrigin(); |
| |
| AXActionData action_data; |
| action_data.target_node_id = GetData().id; |
| action_data.target_rect = r; |
| action_data.action = ax::mojom::Action::kScrollToMakeVisible; |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| // |
| // IScrollProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Scroll(ScrollAmount horizontal_amount, |
| ScrollAmount vertical_amount) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_SCROLL); |
| UIA_VALIDATE_CALL(); |
| if (!IsScrollable()) |
| return E_FAIL; |
| |
| AXActionData action_data; |
| action_data.target_node_id = GetData().id; |
| action_data.action = ax::mojom::Action::kSetScrollOffset; |
| action_data.target_point = gfx::PointAtOffsetFromOrigin( |
| CalculateUIAScrollPoint(horizontal_amount, vertical_amount)); |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::SetScrollPercent(double horizontal_percent, |
| double vertical_percent) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_SETSCROLLPERCENT); |
| UIA_VALIDATE_CALL(); |
| if (!IsScrollable()) |
| return E_FAIL; |
| |
| const double x_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMin); |
| const double x_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMax); |
| const double y_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMin); |
| const double y_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMax); |
| const int x = gfx::ToRoundedInt(horizontal_percent * (x_max - x_min) + x_min); |
| const int y = gfx::ToRoundedInt(vertical_percent * (y_max - y_min) + y_min); |
| const gfx::Point scroll_to(x, y); |
| |
| AXActionData action_data; |
| action_data.target_node_id = GetData().id; |
| action_data.action = ax::mojom::Action::kSetScrollOffset; |
| action_data.target_point = scroll_to; |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_HorizontallyScrollable(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_GET_HORIZONTALLYSCROLLABLE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = IsHorizontallyScrollable(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_HorizontalScrollPercent(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_GET_HORIZONTALSCROLLPERCENT); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = GetHorizontalScrollPercent(); |
| return S_OK; |
| } |
| |
| // Horizontal size of the viewable region as a percentage of the total content |
| // area. |
| IFACEMETHODIMP AXPlatformNodeWin::get_HorizontalViewSize(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_GET_HORIZONTALVIEWSIZE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| if (!IsHorizontallyScrollable()) { |
| *result = 100.; |
| return S_OK; |
| } |
| |
| gfx::RectF clipped_bounds(GetDelegate()->GetBoundsRect( |
| AXCoordinateSystem::kScreen, AXClippingBehavior::kClipped)); |
| float x_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMin); |
| float x_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMax); |
| float total_width = clipped_bounds.width() + x_max - x_min; |
| DCHECK_LE(clipped_bounds.width(), total_width); |
| *result = 100.0 * clipped_bounds.width() / total_width; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_VerticallyScrollable(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_GET_VERTICALLYSCROLLABLE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = IsVerticallyScrollable(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_VerticalScrollPercent(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_GET_VERTICALSCROLLPERCENT); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = GetVerticalScrollPercent(); |
| return S_OK; |
| } |
| |
| // Vertical size of the viewable region as a percentage of the total content |
| // area. |
| IFACEMETHODIMP AXPlatformNodeWin::get_VerticalViewSize(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SCROLL_GET_VERTICALVIEWSIZE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| if (!IsVerticallyScrollable()) { |
| *result = 100.0; |
| return S_OK; |
| } |
| |
| gfx::RectF clipped_bounds(GetDelegate()->GetBoundsRect( |
| AXCoordinateSystem::kScreen, AXClippingBehavior::kClipped)); |
| float y_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMin); |
| float y_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMax); |
| float total_height = clipped_bounds.height() + y_max - y_min; |
| DCHECK_LE(clipped_bounds.height(), total_height); |
| *result = 100.0 * clipped_bounds.height() / total_height; |
| return S_OK; |
| } |
| |
| // |
| // ISelectionItemProvider implementation. |
| // |
| |
| HRESULT AXPlatformNodeWin::ISelectionItemProviderSetSelected(bool selected) { |
| UIA_VALIDATE_CALL(); |
| |
| if (!IsSelectionItemSupported()) |
| return UIA_E_INVALIDOPERATION; |
| |
| int restriction; |
| if (GetIntAttribute(ax::mojom::IntAttribute::kRestriction, &restriction)) { |
| if (restriction == static_cast<int>(ax::mojom::Restriction::kDisabled)) |
| return UIA_E_ELEMENTNOTENABLED; |
| } |
| |
| bool is_selected; |
| if (!GetBoolAttribute(ax::mojom::BoolAttribute::kSelected, &is_selected)) |
| return UIA_E_INVALIDOPERATION; |
| if (is_selected == selected) |
| return S_OK; |
| |
| AXActionData data; |
| data.action = ax::mojom::Action::kDoDefault; |
| if (GetDelegate()->AccessibilityPerformAction(data)) |
| return S_OK; |
| return UIA_E_INVALIDOPERATION; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::AddToSelection() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTIONITEM_ADDTOSELECTION); |
| return ISelectionItemProviderSetSelected(true); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::RemoveFromSelection() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTIONITEM_REMOVEFROMSELECTION); |
| return ISelectionItemProviderSetSelected(false); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Select() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTIONITEM_SELECT); |
| return ISelectionItemProviderSetSelected(true); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_IsSelected(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTIONITEM_GET_ISSELECTED); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| if (!IsSelectionItemSupported()) |
| return UIA_E_INVALIDOPERATION; |
| |
| // https://www.w3.org/TR/core-aam-1.1/#mapping_state-property_table |
| // SelectionItem.IsSelected is exposed when aria-checked is True or False, |
| // for 'radio' and 'menuitemradio' roles |
| if (GetData().role == ax::mojom::Role::kRadioButton || |
| GetData().role == ax::mojom::Role::kMenuItemRadio) { |
| const auto checked_state = GetData().GetCheckedState(); |
| switch (checked_state) { |
| case ax::mojom::CheckedState::kTrue: |
| case ax::mojom::CheckedState::kFalse: { |
| *result = (checked_state == ax::mojom::CheckedState::kTrue); |
| return S_OK; |
| } |
| case ax::mojom::CheckedState::kMixed: |
| case ax::mojom::CheckedState::kNone: { |
| return UIA_E_INVALIDOPERATION; |
| } |
| } |
| } |
| |
| // https://www.w3.org/TR/wai-aria-1.1/#aria-selected |
| // Elements are not selectable when aria-selected is undefined |
| bool is_selected; |
| if (GetBoolAttribute(ax::mojom::BoolAttribute::kSelected, &is_selected)) { |
| *result = is_selected; |
| return S_OK; |
| } |
| |
| return UIA_E_INVALIDOPERATION; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_SelectionContainer( |
| IRawElementProviderSimple** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTIONITEM_GET_SELECTIONCONTAINER); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(GetSelectionContainer()); |
| if (!node_win) |
| return E_FAIL; |
| |
| node_win->AddRef(); |
| *result = static_cast<IRawElementProviderSimple*>(node_win); |
| return S_OK; |
| } |
| |
| // |
| // ISelectionProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetSelection(SAFEARRAY** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTION_GETSELECTION); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| std::vector<AXPlatformNodeWin*> selected_children; |
| LONG child_count = GetDelegate()->GetChildCount(); |
| for (LONG i = 0; i < child_count; ++i) { |
| auto* child = static_cast<AXPlatformNodeWin*>( |
| FromNativeViewAccessible(GetDelegate()->ChildAtIndex(i))); |
| DCHECK(child); |
| if (child->GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| selected_children.push_back(child); |
| } |
| |
| LONG selected_children_count = selected_children.size(); |
| *result = SafeArrayCreateVector(VT_UNKNOWN, 0, selected_children_count); |
| if (!*result) |
| return E_OUTOFMEMORY; |
| |
| for (LONG i = 0; i < selected_children_count; ++i) { |
| HRESULT hr = SafeArrayPutElement( |
| *result, &i, |
| static_cast<IRawElementProviderSimple*>(selected_children[i])); |
| if (FAILED(hr)) { |
| SafeArrayDestroy(*result); |
| *result = nullptr; |
| return hr; |
| } |
| } |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_CanSelectMultiple(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTION_GET_CANSELECTMULTIPLE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = GetData().HasState(ax::mojom::State::kMultiselectable); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_IsSelectionRequired(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SELECTION_GET_ISSELECTIONREQUIRED); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = GetData().HasState(ax::mojom::State::kRequired); |
| return S_OK; |
| } |
| |
| // |
| // ITableItemProvider methods. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetColumnHeaderItems(SAFEARRAY** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLEITEM_GETCOLUMNHEADERITEMS); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| base::Optional<int> column = GetTableColumn(); |
| if (!column) |
| return E_FAIL; |
| |
| std::vector<int32_t> column_header_ids = |
| GetDelegate()->GetColHeaderNodeIds(*column); |
| base::EraseIf(column_header_ids, [this](int32_t node_id) { |
| return !IsValidUiaRelationTarget(GetDelegate()->GetFromNodeID(node_id)); |
| }); |
| *result = CreateUIAElementsArrayFromIdVector(column_header_ids); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetRowHeaderItems(SAFEARRAY** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLEITEM_GETROWHEADERITEMS); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| base::Optional<int> row = GetTableRow(); |
| if (!row) |
| return E_FAIL; |
| |
| std::vector<int32_t> row_header_ids = |
| GetDelegate()->GetRowHeaderNodeIds(*row); |
| base::EraseIf(row_header_ids, [this](int32_t node_id) { |
| return !IsValidUiaRelationTarget(GetDelegate()->GetFromNodeID(node_id)); |
| }); |
| *result = CreateUIAElementsArrayFromIdVector(row_header_ids); |
| return S_OK; |
| } |
| |
| // |
| // ITableProvider methods. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetColumnHeaders(SAFEARRAY** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLE_GETCOLUMNHEADERS); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| std::vector<int32_t> column_header_ids = GetDelegate()->GetColHeaderNodeIds(); |
| base::EraseIf(column_header_ids, [this](int32_t node_id) { |
| return !IsValidUiaRelationTarget(GetDelegate()->GetFromNodeID(node_id)); |
| }); |
| *result = CreateUIAElementsArrayFromIdVector(column_header_ids); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetRowHeaders(SAFEARRAY** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLE_GETROWHEADERS); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| std::vector<int32_t> row_header_ids = GetDelegate()->GetRowHeaderNodeIds(); |
| base::EraseIf(row_header_ids, [this](int32_t node_id) { |
| return !IsValidUiaRelationTarget(GetDelegate()->GetFromNodeID(node_id)); |
| }); |
| *result = CreateUIAElementsArrayFromIdVector(row_header_ids); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_RowOrColumnMajor( |
| RowOrColumnMajor* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TABLE_GET_ROWORCOLUMNMAJOR); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| // Tables and ARIA grids are always in row major order |
| // see AXPlatformNodeBase::GetTableCell |
| *result = RowOrColumnMajor_RowMajor; |
| return S_OK; |
| } |
| |
| // |
| // IToggleProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Toggle() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TOGGLE_TOGGLE); |
| UIA_VALIDATE_CALL(); |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kDoDefault; |
| |
| if (GetDelegate()->AccessibilityPerformAction(action_data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_ToggleState(ToggleState* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_TOGGLE_GET_TOGGLESTATE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| const auto checked_state = GetData().GetCheckedState(); |
| if (checked_state == ax::mojom::CheckedState::kTrue) { |
| *result = ToggleState_On; |
| } else if (checked_state == ax::mojom::CheckedState::kMixed) { |
| *result = ToggleState_Indeterminate; |
| } else { |
| *result = ToggleState_Off; |
| } |
| return S_OK; |
| } |
| |
| // |
| // IValueProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::SetValue(LPCWSTR value) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_VALUE_SETVALUE); |
| UIA_VALIDATE_CALL(); |
| if (!value) |
| return E_INVALIDARG; |
| |
| if (GetData().IsReadOnlyOrDisabled()) |
| return UIA_E_ELEMENTNOTENABLED; |
| |
| AXActionData data; |
| data.action = ax::mojom::Action::kSetValue; |
| data.value = base::WideToUTF8(value); |
| if (GetDelegate()->AccessibilityPerformAction(data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_IsReadOnly(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_VALUE_GET_ISREADONLY); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = GetData().IsReadOnlyOrDisabled(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_Value(BSTR* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_VALUE_GET_VALUE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| *result = GetValueAttributeAsBstr(this); |
| return S_OK; |
| } |
| |
| // |
| // IWindowProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::SetVisualState( |
| WindowVisualState window_visual_state) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_SETVISUALSTATE); |
| UIA_VALIDATE_CALL(); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Close() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_CLOSE); |
| UIA_VALIDATE_CALL(); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::WaitForInputIdle(int milliseconds, |
| BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_WAITFORINPUTIDLE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_CanMaximize(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_GET_CANMAXIMIZE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_CanMinimize(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_GET_CANMINIMIZE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_IsModal(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_GET_ISMODAL); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| *result = GetBoolAttribute(ax::mojom::BoolAttribute::kModal); |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_WindowVisualState( |
| WindowVisualState* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_GET_WINDOWVISUALSTATE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_WindowInteractionState( |
| WindowInteractionState* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_GET_WINDOWINTERACTIONSTATE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_IsTopmost(BOOL* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_WINDOW_GET_ISTOPMOST); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| return UIA_E_NOTSUPPORTED; |
| } |
| |
| // |
| // IRangeValueProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::SetValue(double value) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_RANGEVALUE_SETVALUE); |
| UIA_VALIDATE_CALL(); |
| AXActionData data; |
| data.action = ax::mojom::Action::kSetValue; |
| data.value = base::NumberToString(value); |
| if (GetDelegate()->AccessibilityPerformAction(data)) |
| return S_OK; |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_LargeChange(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_RANGEVALUE_GET_LARGECHANGE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| float attribute; |
| if (GetFloatAttribute(ax::mojom::FloatAttribute::kStepValueForRange, |
| &attribute)) { |
| *result = attribute * kLargeChangeScaleFactor; |
| return S_OK; |
| } |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_Maximum(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_RANGEVALUE_GET_MAXIMUM); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| float attribute; |
| if (GetFloatAttribute(ax::mojom::FloatAttribute::kMaxValueForRange, |
| &attribute)) { |
| *result = attribute; |
| return S_OK; |
| } |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_Minimum(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_RANGEVALUE_GET_MINIMUM); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| float attribute; |
| if (GetFloatAttribute(ax::mojom::FloatAttribute::kMinValueForRange, |
| &attribute)) { |
| *result = attribute; |
| return S_OK; |
| } |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_SmallChange(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_RANGEVALUE_GET_SMALLCHANGE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| float attribute; |
| if (GetFloatAttribute(ax::mojom::FloatAttribute::kStepValueForRange, |
| &attribute)) { |
| *result = attribute; |
| return S_OK; |
| } |
| return E_FAIL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_Value(double* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_RANGEVALUE_GET_VALUE); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| float attribute; |
| if (GetFloatAttribute(ax::mojom::FloatAttribute::kValueForRange, |
| &attribute)) { |
| *result = attribute; |
| return S_OK; |
| } |
| return E_FAIL; |
| } |
| |
| // IAccessibleEx methods not implemented. |
| IFACEMETHODIMP |
| AXPlatformNodeWin::ConvertReturnedElement(IRawElementProviderSimple* element, |
| IAccessibleEx** acc) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_CONVERT_RETURNED_ELEMENT); |
| return E_NOTIMPL; |
| } |
| |
| // |
| // IAccessibleTable methods. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_accessibleAt(LONG row, |
| LONG column, |
| IUnknown** accessible) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ACCESSIBLE_AT); |
| COM_OBJECT_VALIDATE_1_ARG(accessible); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| AXPlatformNodeBase* cell = GetTableCell(int{row}, int{column}); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(cell); |
| return node_win->QueryInterface(IID_PPV_ARGS(accessible)); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_caption(IUnknown** accessible) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CAPTION); |
| COM_OBJECT_VALIDATE_1_ARG(accessible); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| AXPlatformNodeBase* caption = GetTableCaption(); |
| if (!caption) |
| return S_FALSE; |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(caption); |
| return node_win->QueryInterface(IID_PPV_ARGS(accessible)); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_childIndex(LONG row, |
| LONG column, |
| LONG* cell_index) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CHILD_INDEX); |
| COM_OBJECT_VALIDATE_1_ARG(cell_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| AXPlatformNodeBase* cell = GetTableCell(int{row}, int{column}); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| base::Optional<int> index = cell->GetTableCellIndex(); |
| if (!index) |
| return E_FAIL; |
| |
| *cell_index = LONG{*index}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnDescription(LONG column, |
| BSTR* description) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_DESCRIPTION); |
| COM_OBJECT_VALIDATE_1_ARG(description); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| if (!columns) |
| return E_FAIL; |
| |
| if (column < 0 || column >= *columns) |
| return E_INVALIDARG; |
| |
| std::vector<int32_t> column_header_ids = |
| GetDelegate()->GetColHeaderNodeIds(int{column}); |
| for (int32_t node_id : column_header_ids) { |
| AXPlatformNodeWin* cell = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(node_id)); |
| if (!cell) |
| continue; |
| |
| base::string16 cell_name = |
| cell->GetString16Attribute(ax::mojom::StringAttribute::kName); |
| if (!cell_name.empty()) { |
| *description = SysAllocString(cell_name.c_str()); |
| return S_OK; |
| } |
| |
| cell_name = |
| cell->GetString16Attribute(ax::mojom::StringAttribute::kDescription); |
| if (!cell_name.empty()) { |
| *description = SysAllocString(cell_name.c_str()); |
| return S_OK; |
| } |
| } |
| |
| return S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnExtentAt(LONG row, |
| LONG column, |
| LONG* n_columns_spanned) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_EXTENT_AT); |
| COM_OBJECT_VALIDATE_1_ARG(n_columns_spanned); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| AXPlatformNodeBase* cell = GetTableCell(int{row}, int{column}); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| base::Optional<int> column_span = cell->GetTableColumnSpan(); |
| if (!column_span) |
| return E_FAIL; |
| *n_columns_spanned = LONG{*column_span}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnHeader( |
| IAccessibleTable** accessible_table, |
| LONG* starting_row_index) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_HEADER); |
| COM_OBJECT_VALIDATE_2_ARGS(accessible_table, starting_row_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| // TODO(dmazzoni): implement |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnIndex(LONG cell_index, |
| LONG* column_index) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_COLUMN_INDEX); |
| COM_OBJECT_VALIDATE_1_ARG(column_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| AXPlatformNodeBase* cell = GetTableCell(cell_index); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| base::Optional<int> cell_column = cell->GetTableColumn(); |
| if (!cell_column) |
| return E_FAIL; |
| *column_index = LONG{*cell_column}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nColumns(LONG* column_count) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_COLUMNS); |
| COM_OBJECT_VALIDATE_1_ARG(column_count); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| base::Optional<int> columns = GetTableColumnCount(); |
| if (!columns) |
| return E_FAIL; |
| *column_count = LONG{*columns}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nRows(LONG* row_count) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_ROWS); |
| COM_OBJECT_VALIDATE_1_ARG(row_count); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!rows) |
| return E_FAIL; |
| *row_count = LONG{*rows}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nSelectedChildren(LONG* cell_count) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_CHILDREN); |
| COM_OBJECT_VALIDATE_1_ARG(cell_count); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| LONG result = 0; |
| for (int r = 0; r < *rows; ++r) { |
| for (int c = 0; c < *columns; ++c) { |
| AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (cell && |
| cell->GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| ++result; |
| } |
| } |
| *cell_count = result; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nSelectedColumns(LONG* column_count) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_COLUMNS); |
| COM_OBJECT_VALIDATE_1_ARG(column_count); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| // If every cell in a column is selected, then that column is selected. |
| LONG result = 0; |
| for (int c = 0; c < *columns; ++c) { |
| bool selected = true; |
| for (int r = 0; r < *rows && selected == true; ++r) { |
| const AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (!cell || !(cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected))) |
| selected = false; |
| } |
| if (selected) |
| ++result; |
| } |
| |
| *column_count = result; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nSelectedRows(LONG* row_count) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTED_ROWS); |
| COM_OBJECT_VALIDATE_1_ARG(row_count); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| // If every cell in a row is selected, then that row is selected. |
| LONG result = 0; |
| for (int r = 0; r < *rows; ++r) { |
| bool selected = true; |
| for (int c = 0; c < *columns && selected == true; ++c) { |
| const AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (!cell || !(cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected))) |
| selected = false; |
| } |
| if (selected) |
| ++result; |
| } |
| |
| *row_count = result; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowDescription(LONG row, |
| BSTR* description) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_DESCRIPTION); |
| COM_OBJECT_VALIDATE_1_ARG(description); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!rows) |
| return E_FAIL; |
| |
| if (row < 0 || row >= *rows) |
| return E_INVALIDARG; |
| |
| std::vector<int32_t> row_header_ids = |
| GetDelegate()->GetRowHeaderNodeIds(int{row}); |
| for (int32_t node_id : row_header_ids) { |
| AXPlatformNodeWin* cell = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(node_id)); |
| if (!cell) |
| continue; |
| |
| base::string16 cell_name = |
| cell->GetString16Attribute(ax::mojom::StringAttribute::kName); |
| if (!cell_name.empty()) { |
| *description = SysAllocString(cell_name.c_str()); |
| return S_OK; |
| } |
| |
| cell_name = |
| cell->GetString16Attribute(ax::mojom::StringAttribute::kDescription); |
| if (!cell_name.empty()) { |
| *description = SysAllocString(cell_name.c_str()); |
| return S_OK; |
| } |
| } |
| |
| return S_FALSE; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowExtentAt(LONG row, |
| LONG column, |
| LONG* n_rows_spanned) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_EXTENT_AT); |
| COM_OBJECT_VALIDATE_1_ARG(n_rows_spanned); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| const AXPlatformNodeBase* cell = GetTableCell(int{row}, int{column}); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| base::Optional<int> cell_row_span = cell->GetTableRowSpan(); |
| if (!cell_row_span) |
| return E_FAIL; |
| *n_rows_spanned = LONG{*cell_row_span}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowHeader( |
| IAccessibleTable** accessible_table, |
| LONG* starting_column_index) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_ROW_HEADER); |
| COM_OBJECT_VALIDATE_2_ARGS(accessible_table, starting_column_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| // TODO(dmazzoni): implement |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowIndex(LONG cell_index, |
| LONG* row_index) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(row_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| const AXPlatformNodeBase* cell = GetTableCell(cell_index); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| base::Optional<int> cell_row = cell->GetTableRow(); |
| if (!cell_row) |
| return E_FAIL; |
| *row_index = LONG{*cell_row}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectedChildren(LONG max_children, |
| LONG** children, |
| LONG* n_children) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_2_ARGS(children, n_children); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| if (max_children <= 0) |
| return E_INVALIDARG; |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| std::vector<LONG> results; |
| for (int r = 0; r < *rows; ++r) { |
| for (int c = 0; c < *columns; ++c) { |
| const AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (cell && cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected)) { |
| base::Optional<int> cell_index = cell->GetTableCellIndex(); |
| if (!cell_index) |
| return E_FAIL; |
| |
| results.push_back(*cell_index); |
| } |
| } |
| } |
| |
| return AllocateComArrayFromVector(results, max_children, children, |
| n_children); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectedColumns(LONG max_columns, |
| LONG** columns, |
| LONG* n_columns) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_2_ARGS(columns, n_columns); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| if (max_columns <= 0) |
| return E_INVALIDARG; |
| |
| base::Optional<int> column_count = GetTableColumnCount(); |
| base::Optional<int> row_count = GetTableRowCount(); |
| if (!column_count || !row_count) |
| return E_FAIL; |
| |
| std::vector<LONG> results; |
| for (int c = 0; c < *column_count; ++c) { |
| bool selected = true; |
| for (int r = 0; r < *row_count && selected == true; ++r) { |
| const AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (!cell || !(cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected))) |
| selected = false; |
| } |
| if (selected) |
| results.push_back(c); |
| } |
| |
| return AllocateComArrayFromVector(results, max_columns, columns, n_columns); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectedRows(LONG max_rows, |
| LONG** rows, |
| LONG* n_rows) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_2_ARGS(rows, n_rows); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| if (max_rows <= 0) |
| return E_INVALIDARG; |
| |
| base::Optional<int> column_count = GetTableColumnCount(); |
| base::Optional<int> row_count = GetTableRowCount(); |
| if (!column_count || !row_count) |
| return E_FAIL; |
| |
| std::vector<LONG> results; |
| for (int r = 0; r < *row_count; ++r) { |
| bool selected = true; |
| for (int c = 0; c < *column_count && selected == true; ++c) { |
| const AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (!cell || !(cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected))) |
| selected = false; |
| } |
| if (selected) |
| results.push_back(r); |
| } |
| |
| return AllocateComArrayFromVector(results, max_rows, rows, n_rows); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_summary(IUnknown** accessible) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(accessible); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| // TODO(dmazzoni): implement. |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_isColumnSelected(LONG column, |
| boolean* is_selected) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(is_selected); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| if (column < 0 || column >= *columns) |
| return E_INVALIDARG; |
| |
| for (int r = 0; r < *rows; ++r) { |
| const AXPlatformNodeBase* cell = GetTableCell(r, column); |
| if (!cell || !(cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected))) |
| return S_OK; |
| } |
| |
| *is_selected = true; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_isRowSelected(LONG row, |
| boolean* is_selected) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(is_selected); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| if (row < 0 || row >= *rows) |
| return E_INVALIDARG; |
| |
| for (int c = 0; c < *columns; ++c) { |
| const AXPlatformNodeBase* cell = GetTableCell(row, c); |
| if (!cell || !(cell->GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kSelected))) |
| return S_OK; |
| } |
| |
| *is_selected = true; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_isSelected(LONG row, |
| LONG column, |
| boolean* is_selected) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(is_selected); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| const AXPlatformNodeBase* cell = GetTableCell(int{row}, int{column}); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| if (cell->GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| *is_selected = true; |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowColumnExtentsAtIndex( |
| LONG index, |
| LONG* row, |
| LONG* column, |
| LONG* row_extents, |
| LONG* column_extents, |
| boolean* is_selected) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_5_ARGS(row, column, row_extents, column_extents, |
| is_selected); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| const AXPlatformNodeBase* cell = GetTableCell(index); |
| if (!cell) |
| return E_INVALIDARG; |
| |
| base::Optional<int> row_index = cell->GetTableRow(); |
| base::Optional<int> column_index = cell->GetTableColumn(); |
| base::Optional<int> row_span = cell->GetTableRowSpan(); |
| base::Optional<int> column_span = cell->GetTableColumnSpan(); |
| if (!row_index || !column_index || !row_span || !column_span) |
| return E_FAIL; |
| |
| *row = LONG{*row_index}; |
| *column = LONG{*column_index}; |
| *row_extents = LONG{*row_span}; |
| *column_extents = LONG{*column_span}; |
| if (cell->GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| *is_selected = true; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::selectRow(LONG row) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!rows) |
| return E_FAIL; |
| |
| if (row < 0 || row >= *rows) |
| return E_INVALIDARG; |
| |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::selectColumn(LONG column) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| if (!columns) |
| return E_FAIL; |
| |
| if (column < 0 || column >= *columns) |
| return E_INVALIDARG; |
| |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::unselectRow(LONG row) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!rows) |
| return E_FAIL; |
| |
| if (row < 0 || row >= *rows) |
| return E_INVALIDARG; |
| |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::unselectColumn(LONG column) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| if (!columns) |
| return E_FAIL; |
| |
| if (column < 0 || column >= *columns) |
| return E_INVALIDARG; |
| |
| return E_NOTIMPL; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_modelChange( |
| IA2TableModelChange* model_change) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(model_change); |
| return E_NOTIMPL; |
| } |
| |
| // |
| // IAccessibleTable2 methods. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_cellAt(LONG row, |
| LONG column, |
| IUnknown** cell) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(cell); |
| AXPlatformNode::NotifyAddAXModeFlags(AXMode::kScreenReader); |
| |
| AXPlatformNodeBase* table_cell = GetTableCell(int{row}, int{column}); |
| if (!table_cell) |
| return E_INVALIDARG; |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(table_cell); |
| return node_win->QueryInterface(IID_PPV_ARGS(cell)); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nSelectedCells(LONG* cell_count) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| // Note that this method does not need to set any ax mode since it |
| // calls into get_nSelectedChildren() which does. |
| return get_nSelectedChildren(cell_count); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectedCells(IUnknown*** cells, |
| LONG* n_selected_cells) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_2_ARGS(cells, n_selected_cells); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> columns = GetTableColumnCount(); |
| base::Optional<int> rows = GetTableRowCount(); |
| if (!columns || !rows) |
| return E_FAIL; |
| |
| std::vector<AXPlatformNodeBase*> selected; |
| for (int r = 0; r < *rows; ++r) { |
| for (int c = 0; c < *columns; ++c) { |
| AXPlatformNodeBase* cell = GetTableCell(r, c); |
| if (cell && |
| cell->GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| selected.push_back(cell); |
| } |
| } |
| |
| *n_selected_cells = static_cast<LONG>(selected.size()); |
| *cells = static_cast<IUnknown**>( |
| CoTaskMemAlloc(selected.size() * sizeof(IUnknown*))); |
| |
| for (size_t i = 0; i < selected.size(); ++i) { |
| auto* node_win = static_cast<AXPlatformNodeWin*>(selected[i]); |
| node_win->QueryInterface(IID_PPV_ARGS(&(*cells)[i])); |
| } |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectedColumns(LONG** columns, |
| LONG* n_columns) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| return get_selectedColumns(INT_MAX, columns, n_columns); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selectedRows(LONG** rows, LONG* n_rows) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| return get_selectedRows(INT_MAX, rows, n_rows); |
| } |
| |
| // |
| // IAccessibleTableCell methods. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnExtent(LONG* n_columns_spanned) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(n_columns_spanned); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> column_span = GetTableColumnSpan(); |
| if (!column_span) |
| return E_FAIL; |
| *n_columns_spanned = LONG{*column_span}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnHeaderCells( |
| IUnknown*** cell_accessibles, |
| LONG* n_column_header_cells) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_2_ARGS(cell_accessibles, n_column_header_cells); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> column = GetTableColumn(); |
| if (!column) |
| return E_FAIL; |
| |
| std::vector<int32_t> column_header_ids = |
| GetDelegate()->GetColHeaderNodeIds(*column); |
| *cell_accessibles = static_cast<IUnknown**>( |
| CoTaskMemAlloc(column_header_ids.size() * sizeof(IUnknown*))); |
| int index = 0; |
| for (int32_t node_id : column_header_ids) { |
| AXPlatformNodeWin* node_win = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(node_id)); |
| if (node_win) { |
| node_win->QueryInterface(IID_PPV_ARGS(&(*cell_accessibles)[index])); |
| ++index; |
| } |
| } |
| |
| *n_column_header_cells = LONG{column_header_ids.size()}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_columnIndex(LONG* column_index) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(column_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> column = GetTableColumn(); |
| if (!column) |
| return E_FAIL; |
| *column_index = LONG{*column}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowExtent(LONG* n_rows_spanned) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(n_rows_spanned); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> row_span = GetTableRowSpan(); |
| if (!row_span) |
| return E_FAIL; |
| *n_rows_spanned = LONG{*row_span}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowHeaderCells( |
| IUnknown*** cell_accessibles, |
| LONG* n_row_header_cells) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_2_ARGS(cell_accessibles, n_row_header_cells); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> row = GetTableRow(); |
| if (!row) |
| return E_FAIL; |
| |
| std::vector<int32_t> row_header_ids = |
| GetDelegate()->GetRowHeaderNodeIds(*row); |
| *cell_accessibles = static_cast<IUnknown**>( |
| CoTaskMemAlloc(row_header_ids.size() * sizeof(IUnknown*))); |
| int index = 0; |
| for (int32_t node_id : row_header_ids) { |
| AXPlatformNodeWin* node_win = |
| static_cast<AXPlatformNodeWin*>(GetDelegate()->GetFromNodeID(node_id)); |
| if (node_win) { |
| node_win->QueryInterface(IID_PPV_ARGS(&(*cell_accessibles)[index])); |
| ++index; |
| } |
| } |
| |
| *n_row_header_cells = LONG{row_header_ids.size()}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowIndex(LONG* row_index) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(row_index); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> row = GetTableRow(); |
| if (!row) |
| return E_FAIL; |
| *row_index = LONG{*row}; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_isSelected(boolean* is_selected) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(is_selected); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| if (GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| *is_selected = true; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_rowColumnExtents(LONG* row_index, |
| LONG* column_index, |
| LONG* row_extents, |
| LONG* column_extents, |
| boolean* is_selected) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_5_ARGS(row_index, column_index, row_extents, |
| column_extents, is_selected); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| base::Optional<int> row = GetTableRow(); |
| base::Optional<int> column = GetTableColumn(); |
| base::Optional<int> row_span = GetTableRowSpan(); |
| base::Optional<int> column_span = GetTableColumnSpan(); |
| if (!row || !column || !row_span || !column_span) |
| return E_FAIL; |
| |
| *row_index = LONG{*row}; |
| *column_index = LONG{*column}; |
| *row_extents = LONG{*row_span}; |
| *column_extents = LONG{*column_span}; |
| if (GetData().GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| *is_selected = true; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_table(IUnknown** table) { |
| // TODO(dougt) WIN_ACCESSIBILITY_API_HISTOGRAM? |
| COM_OBJECT_VALIDATE_1_ARG(table); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| AXPlatformNodeBase* table_node = GetTable(); |
| if (!table_node) |
| return E_FAIL; |
| |
| auto* node_win = static_cast<AXPlatformNodeWin*>(table_node); |
| return node_win->QueryInterface(IID_PPV_ARGS(table)); |
| } |
| |
| // |
| // IAccessibleText |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nCharacters(LONG* n_characters) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_CHARACTERS); |
| COM_OBJECT_VALIDATE_1_ARG(n_characters); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes | |
| ui::AXMode::kInlineTextBoxes); |
| |
| base::string16 text = TextForIAccessibleText(); |
| *n_characters = static_cast<LONG>(text.size()); |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_caretOffset(LONG* offset) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_CARET_OFFSET); |
| COM_OBJECT_VALIDATE_1_ARG(offset); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| *offset = 0; |
| |
| 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; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_nSelections(LONG* n_selections) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_N_SELECTIONS); |
| COM_OBJECT_VALIDATE_1_ARG(n_selections); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| *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; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_selection(LONG selection_index, |
| LONG* start_offset, |
| LONG* end_offset) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_SELECTION); |
| COM_OBJECT_VALIDATE_2_ARGS(start_offset, end_offset); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| 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; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_text(LONG start_offset, |
| LONG end_offset, |
| BSTR* text) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_TEXT); |
| COM_OBJECT_VALIDATE_1_ARG(text); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| HandleSpecialTextOffset(&start_offset); |
| HandleSpecialTextOffset(&end_offset); |
| |
| // The spec allows the arguments to be reversed. |
| if (start_offset > end_offset) |
| std::swap(start_offset, end_offset); |
| |
| const base::string16 str = TextForIAccessibleText(); |
| LONG str_len = static_cast<LONG>(str.length()); |
| if (start_offset < 0 || start_offset > str_len) |
| return E_INVALIDARG; |
| if (end_offset < 0 || end_offset > str_len) |
| return E_INVALIDARG; |
| |
| base::string16 substr = str.substr(start_offset, end_offset - start_offset); |
| if (substr.empty()) |
| return S_FALSE; |
| |
| *text = SysAllocString(substr.c_str()); |
| DCHECK(*text); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_textAtOffset( |
| LONG offset, |
| enum IA2TextBoundaryType boundary_type, |
| LONG* start_offset, |
| LONG* end_offset, |
| BSTR* text) { |
| COM_OBJECT_VALIDATE_3_ARGS(start_offset, end_offset, text); |
| // The IAccessible2 spec says we don't have to implement the "sentence" |
| // boundary type, we can just let the screen reader handle it. |
| if (boundary_type == IA2_TEXT_BOUNDARY_SENTENCE) { |
| *start_offset = 0; |
| *end_offset = 0; |
| *text = nullptr; |
| return S_FALSE; |
| } |
| |
| const base::string16& text_str = TextForIAccessibleText(); |
| |
| *start_offset = |
| FindBoundary(text_str, boundary_type, offset, BACKWARDS_DIRECTION); |
| *end_offset = |
| FindBoundary(text_str, boundary_type, offset, FORWARDS_DIRECTION); |
| return get_text(*start_offset, *end_offset, text); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_textBeforeOffset( |
| LONG offset, |
| enum IA2TextBoundaryType boundary_type, |
| LONG* start_offset, |
| LONG* end_offset, |
| BSTR* text) { |
| 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 = nullptr; |
| return S_FALSE; |
| } |
| |
| const base::string16& text_str = TextForIAccessibleText(); |
| |
| *start_offset = |
| FindBoundary(text_str, boundary_type, offset, BACKWARDS_DIRECTION); |
| *end_offset = offset; |
| return get_text(*start_offset, *end_offset, text); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_textAfterOffset( |
| LONG offset, |
| enum IA2TextBoundaryType boundary_type, |
| LONG* start_offset, |
| LONG* end_offset, |
| BSTR* text) { |
| 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 = nullptr; |
| return S_FALSE; |
| } |
| |
| const base::string16& text_str = TextForIAccessibleText(); |
| |
| *start_offset = offset; |
| *end_offset = |
| FindBoundary(text_str, boundary_type, offset, FORWARDS_DIRECTION); |
| return get_text(*start_offset, *end_offset, text); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_offsetAtPoint( |
| LONG x, |
| LONG y, |
| enum IA2CoordinateType coord_type, |
| LONG* offset) { |
| COM_OBJECT_VALIDATE_1_ARG(offset); |
| // We don't support this method, but we have to return something |
| // rather than E_NOTIMPL or screen readers will complain. |
| *offset = 0; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::addSelection(LONG start_offset, |
| LONG end_offset) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_ADD_SELECTION); |
| COM_OBJECT_VALIDATE(); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| // We only support one selection. |
| return setSelection(0, start_offset, end_offset); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::removeSelection(LONG selection_index) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_REMOVE_SELECTION); |
| COM_OBJECT_VALIDATE(); |
| AXPlatformNode::NotifyAddAXModeFlags(kScreenReaderAndHTMLAccessibilityModes); |
| |
| 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. |
| return setCaretOffset(GetIntAttribute(ax::mojom::IntAttribute::kTextSelEnd)); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::setCaretOffset(LONG offset) { |
| return setSelection(0, offset, offset); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::setSelection(LONG selection_index, |
| LONG start_offset, |
| LONG end_offset) { |
| if (selection_index != 0) |
| return E_INVALIDARG; |
| |
| HandleSpecialTextOffset(&start_offset); |
| HandleSpecialTextOffset(&end_offset); |
| if (start_offset < 0 || |
| start_offset > static_cast<LONG>(TextForIAccessibleText().length())) { |
| return E_INVALIDARG; |
| } |
| if (end_offset < 0 || |
| end_offset > static_cast<LONG>(TextForIAccessibleText().length())) { |
| return E_INVALIDARG; |
| } |
| |
| if (SetHypertextSelection(int{start_offset}, int{end_offset})) { |
| return S_OK; |
| } |
| return E_FAIL; |
| } |
| |
| // |
| // IAccessibleText methods not implemented. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_newText(IA2TextSegment* new_text) { |
| return E_NOTIMPL; |
| } |
| IFACEMETHODIMP AXPlatformNodeWin::get_oldText(IA2TextSegment* old_text) { |
| return E_NOTIMPL; |
| } |
| IFACEMETHODIMP AXPlatformNodeWin::get_characterExtents( |
| LONG offset, |
| enum IA2CoordinateType coord_type, |
| LONG* x, |
| LONG* y, |
| LONG* width, |
| LONG* height) { |
| return E_NOTIMPL; |
| } |
| IFACEMETHODIMP AXPlatformNodeWin::scrollSubstringTo( |
| LONG start_index, |
| LONG end_index, |
| enum IA2ScrollType scroll_type) { |
| return E_NOTIMPL; |
| } |
| IFACEMETHODIMP AXPlatformNodeWin::scrollSubstringToPoint( |
| LONG start_index, |
| LONG end_index, |
| enum IA2CoordinateType coordinate_type, |
| LONG x, |
| LONG y) { |
| return E_NOTIMPL; |
| } |
| IFACEMETHODIMP AXPlatformNodeWin::get_attributes(LONG offset, |
| LONG* start_offset, |
| LONG* end_offset, |
| BSTR* text_attributes) { |
| return E_NOTIMPL; |
| } |
| |
| // |
| // IRawElementProviderFragment implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::Navigate( |
| NavigateDirection direction, |
| IRawElementProviderFragment** element_provider) { |
| UIA_VALIDATE_CALL_1_ARG(element_provider); |
| |
| *element_provider = nullptr; |
| |
| AXPlatformNodeBase* neighbor = nullptr; |
| switch (direction) { |
| case NavigateDirection_Parent: |
| neighbor = FromNativeViewAccessible(GetParent()); |
| break; |
| |
| case NavigateDirection_FirstChild: |
| if (GetChildCount() > 0) { |
| neighbor = FromNativeViewAccessible(ChildAtIndex(0)); |
| DCHECK(neighbor); |
| DCHECK(FromNativeViewAccessible(neighbor->GetParent()) == this); |
| } |
| break; |
| |
| case NavigateDirection_LastChild: |
| if (GetChildCount() > 0) { |
| neighbor = FromNativeViewAccessible(ChildAtIndex(GetChildCount() - 1)); |
| DCHECK(neighbor); |
| DCHECK(FromNativeViewAccessible(neighbor->GetParent()) == this); |
| } |
| break; |
| |
| case NavigateDirection_NextSibling: |
| neighbor = GetNextSibling(); |
| if (neighbor != nullptr) { |
| DCHECK(neighbor->GetParent() == GetParent()); |
| } |
| break; |
| |
| case NavigateDirection_PreviousSibling: |
| neighbor = GetPreviousSibling(); |
| if (neighbor != nullptr) { |
| DCHECK(neighbor->GetParent() == GetParent()); |
| } |
| break; |
| |
| default: |
| NOTREACHED(); |
| break; |
| } |
| |
| if (neighbor != nullptr) { |
| static_cast<AXPlatformNodeWin*>(neighbor)->QueryInterface( |
| IID_PPV_ARGS(element_provider)); |
| } |
| |
| return S_OK; |
| } |
| |
| void AXPlatformNodeWin::GetRuntimeIdArray( |
| AXPlatformNodeWin::RuntimeIdArray& runtime_id) { |
| runtime_id[0] = UiaAppendRuntimeId; |
| runtime_id[1] = GetUniqueId(); |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetRuntimeId(SAFEARRAY** runtime_id) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_RUNTIME_ID); |
| UIA_VALIDATE_CALL_1_ARG(runtime_id); |
| |
| RuntimeIdArray id_array; |
| GetRuntimeIdArray(id_array); |
| *runtime_id = ::SafeArrayCreateVector(VT_I4, 0, id_array.size()); |
| |
| int* array_data = nullptr; |
| ::SafeArrayAccessData(*runtime_id, reinterpret_cast<void**>(&array_data)); |
| |
| size_t runtime_id_byte_count = id_array.size() * sizeof(int); |
| memcpy_s(array_data, runtime_id_byte_count, id_array.data(), |
| runtime_id_byte_count); |
| |
| ::SafeArrayUnaccessData(*runtime_id); |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_BoundingRectangle( |
| UiaRect* bounding_rectangle) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_BOUNDINGRECTANGLE); |
| UIA_VALIDATE_CALL_1_ARG(bounding_rectangle); |
| |
| gfx::Rect bounds = delegate_->GetBoundsRect(AXCoordinateSystem::kScreen, |
| AXClippingBehavior::kUnclipped); |
| bounding_rectangle->left = bounds.x(); |
| bounding_rectangle->top = bounds.y(); |
| bounding_rectangle->width = bounds.width(); |
| bounding_rectangle->height = bounds.height(); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetEmbeddedFragmentRoots( |
| SAFEARRAY** embedded_fragment_roots) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GETEMBEDDEDFRAGMENTROOTS); |
| UIA_VALIDATE_CALL_1_ARG(embedded_fragment_roots); |
| |
| *embedded_fragment_roots = nullptr; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::SetFocus() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SETFOCUS); |
| UIA_VALIDATE_CALL(); |
| |
| AXActionData action_data; |
| action_data.action = ax::mojom::Action::kFocus; |
| delegate_->AccessibilityPerformAction(action_data); |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_FragmentRoot( |
| IRawElementProviderFragmentRoot** fragment_root) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_FRAGMENTROOT); |
| UIA_VALIDATE_CALL_1_ARG(fragment_root); |
| |
| gfx::AcceleratedWidget widget = |
| delegate_->GetTargetForNativeAccessibilityEvent(); |
| if (widget) { |
| ui::AXFragmentRootWin* root = |
| AXFragmentRootWin::GetForAcceleratedWidget(widget); |
| if (root != nullptr) { |
| root->GetNativeViewAccessible()->QueryInterface( |
| IID_PPV_ARGS(fragment_root)); |
| DCHECK(*fragment_root); |
| return S_OK; |
| } |
| } |
| |
| *fragment_root = nullptr; |
| return UIA_E_ELEMENTNOTAVAILABLE; |
| } |
| |
| // |
| // IRawElementProviderSimple implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetPatternProvider(PATTERNID pattern_id, |
| IUnknown** result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PATTERN_PROVIDER); |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| *result = nullptr; |
| |
| PatternProviderFactoryMethod factory_method = |
| GetPatternProviderFactoryMethod(pattern_id); |
| if (factory_method) |
| (*factory_method)(this, result); |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::GetPropertyValue(PROPERTYID property_id, |
| VARIANT* result) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PROPERTY_VALUE); |
| |
| constexpr LONG kFirstKnownUiaPropertyId = UIA_RuntimeIdPropertyId; |
| constexpr LONG kLastKnownUiaPropertyId = UIA_HeadingLevelPropertyId; |
| if (property_id >= kFirstKnownUiaPropertyId && |
| property_id <= kLastKnownUiaPropertyId) { |
| base::UmaHistogramSparse("Accessibility.WinAPIs.GetPropertyValue", |
| property_id); |
| } else { |
| // Collapse all unknown property IDs into a single bucket. |
| base::UmaHistogramSparse("Accessibility.WinAPIs.GetPropertyValue", 0); |
| } |
| |
| UIA_VALIDATE_CALL_1_ARG(result); |
| |
| result->vt = VT_EMPTY; |
| |
| int int_attribute; |
| const AXNodeData& data = GetData(); |
| |
| switch (property_id) { |
| case UIA_AriaPropertiesPropertyId: |
| result->vt = VT_BSTR; |
| result->bstrVal = SysAllocString(ComputeUIAProperties().c_str()); |
| break; |
| |
| case UIA_AriaRolePropertyId: |
| result->vt = VT_BSTR; |
| result->bstrVal = SysAllocString(UIAAriaRole().c_str()); |
| break; |
| |
| case UIA_AutomationIdPropertyId: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = |
| SysAllocString(GetDelegate()->GetAuthorUniqueId().c_str()); |
| break; |
| |
| case UIA_ClassNamePropertyId: |
| result->vt = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kClassName, |
| &result->bstrVal); |
| break; |
| |
| case UIA_ClickablePointPropertyId: |
| result->vt = VT_ARRAY | VT_R8; |
| result->parray = CreateClickablePointArray(); |
| break; |
| |
| case UIA_ControllerForPropertyId: |
| result->vt = VT_ARRAY | VT_UNKNOWN; |
| result->parray = CreateUIAElementsArrayForRelation( |
| ax::mojom::IntListAttribute::kControlsIds); |
| break; |
| |
| case UIA_ControlTypePropertyId: |
| result->vt = VT_I4; |
| result->lVal = ComputeUIAControlType(); |
| break; |
| |
| case UIA_CulturePropertyId: |
| result->vt = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kLanguage, |
| &result->bstrVal); |
| break; |
| |
| case UIA_DescribedByPropertyId: |
| result->vt = VT_ARRAY | VT_UNKNOWN; |
| result->parray = CreateUIAElementsArrayForRelation( |
| ax::mojom::IntListAttribute::kDescribedbyIds); |
| break; |
| |
| case UIA_FlowsFromPropertyId: |
| V_VT(result) = VT_ARRAY | VT_UNKNOWN; |
| V_ARRAY(result) = CreateUIAElementsArrayForReverseRelation( |
| ax::mojom::IntListAttribute::kFlowtoIds); |
| break; |
| |
| case UIA_FlowsToPropertyId: |
| result->vt = VT_ARRAY | VT_UNKNOWN; |
| result->parray = CreateUIAElementsArrayForRelation( |
| ax::mojom::IntListAttribute::kFlowtoIds); |
| break; |
| |
| case UIA_FrameworkIdPropertyId: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = SysAllocString(FRAMEWORK_ID); |
| break; |
| |
| case UIA_HasKeyboardFocusPropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = (delegate_->GetFocus() == GetNativeViewAccessible()) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| break; |
| |
| case UIA_FullDescriptionPropertyId: |
| result->vt = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kDescription, |
| &result->bstrVal); |
| break; |
| |
| case UIA_HelpTextPropertyId: |
| if (HasStringAttribute(ax::mojom::StringAttribute::kPlaceholder)) { |
| V_VT(result) = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kPlaceholder, |
| &V_BSTR(result)); |
| } else if (data.GetNameFrom() == ax::mojom::NameFrom::kPlaceholder || |
| data.GetNameFrom() == ax::mojom::NameFrom::kTitle) { |
| V_VT(result) = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kName, |
| &V_BSTR(result)); |
| } else if (HasStringAttribute(ax::mojom::StringAttribute::kTooltip)) { |
| V_VT(result) = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kTooltip, |
| &V_BSTR(result)); |
| } |
| break; |
| |
| case UIA_IsContentElementPropertyId: |
| case UIA_IsControlElementPropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = IsUIAControl() ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| |
| case UIA_IsDataValidForFormPropertyId: |
| if (data.GetIntAttribute(ax::mojom::IntAttribute::kInvalidState, |
| &int_attribute)) { |
| result->vt = VT_BOOL; |
| result->boolVal = |
| (static_cast<int>(ax::mojom::InvalidState::kFalse) == int_attribute) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| } |
| break; |
| |
| case UIA_IsKeyboardFocusablePropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = |
| ShouldNodeHaveFocusableState(data) ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| |
| case UIA_IsOffscreenPropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = |
| GetDelegate()->IsOffscreen() ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| |
| case UIA_IsRequiredForFormPropertyId: |
| result->vt = VT_BOOL; |
| if (data.HasState(ax::mojom::State::kRequired)) { |
| result->boolVal = VARIANT_TRUE; |
| } else { |
| result->boolVal = VARIANT_FALSE; |
| } |
| break; |
| |
| case UIA_ItemStatusPropertyId: { |
| // https://www.w3.org/TR/core-aam-1.1/#mapping_state-property_table |
| // aria-sort='ascending|descending|other' is mapped for the |
| // HeaderItem Control Type. |
| int32_t sort_direction; |
| if (IsTableHeader(data.role) && |
| GetIntAttribute(ax::mojom::IntAttribute::kSortDirection, |
| &sort_direction)) { |
| switch (static_cast<ax::mojom::SortDirection>(sort_direction)) { |
| case ax::mojom::SortDirection::kNone: |
| case ax::mojom::SortDirection::kUnsorted: |
| break; |
| case ax::mojom::SortDirection::kAscending: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = SysAllocString(L"ascending"); |
| break; |
| case ax::mojom::SortDirection::kDescending: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = SysAllocString(L"descending"); |
| break; |
| case ax::mojom::SortDirection::kOther: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = SysAllocString(L"other"); |
| break; |
| } |
| } |
| break; |
| } |
| |
| case UIA_LabeledByPropertyId: |
| for (int32_t id : data.GetIntListAttribute( |
| ax::mojom::IntListAttribute::kLabelledbyIds)) { |
| auto* node_win = GetDelegate()->GetFromNodeID(id); |
| if (IsValidUiaRelationTarget(node_win)) { |
| result->vt = VT_UNKNOWN; |
| result->punkVal = node_win->GetNativeViewAccessible(); |
| result->punkVal->AddRef(); |
| break; |
| } |
| } |
| break; |
| |
| case UIA_LocalizedControlTypePropertyId: |
| if (data.HasStringAttribute( |
| ax::mojom::StringAttribute::kRoleDescription)) { |
| V_VT(result) = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kRoleDescription, |
| &V_BSTR(result)); |
| } |
| // If a role description has not been provided, leave as VT_EMPTY. |
| // UIA core handles Localized Control type for some built-in types and |
| // also has a mapping for ARIA roles. To get these defaults, we need to |
| // have returned VT_EMPTY. |
| break; |
| |
| case UIA_NamePropertyId: |
| result->vt = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kName, |
| &result->bstrVal); |
| break; |
| |
| case UIA_OrientationPropertyId: |
| if (SupportsOrientation(data.role)) { |
| if (data.HasState(ax::mojom::State::kHorizontal) && |
| data.HasState(ax::mojom::State::kVertical)) { |
| NOTREACHED() << "An accessibility object cannot have a horizontal " |
| "and a vertical orientation at the same time."; |
| } |
| if (data.HasState(ax::mojom::State::kHorizontal)) { |
| result->vt = VT_I4; |
| result->intVal = OrientationType_Horizontal; |
| } |
| if (data.HasState(ax::mojom::State::kVertical)) { |
| result->vt = VT_I4; |
| result->intVal = OrientationType_Vertical; |
| } |
| } else { |
| result->vt = VT_I4; |
| result->intVal = OrientationType_None; |
| } |
| break; |
| |
| case UIA_IsEnabledPropertyId: |
| V_VT(result) = VT_BOOL; |
| switch (data.GetRestriction()) { |
| case ax::mojom::Restriction::kDisabled: |
| V_BOOL(result) = VARIANT_FALSE; |
| break; |
| |
| case ax::mojom::Restriction::kNone: |
| case ax::mojom::Restriction::kReadOnly: |
| V_BOOL(result) = VARIANT_TRUE; |
| break; |
| } |
| break; |
| |
| case UIA_IsPasswordPropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = data.HasState(ax::mojom::State::kProtected) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| break; |
| |
| case UIA_AcceleratorKeyPropertyId: |
| if (data.HasStringAttribute(ax::mojom::StringAttribute::kKeyShortcuts)) { |
| result->vt = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kKeyShortcuts, |
| &result->bstrVal); |
| } |
| break; |
| |
| case UIA_AccessKeyPropertyId: |
| if (data.HasStringAttribute(ax::mojom::StringAttribute::kAccessKey)) { |
| result->vt = VT_BSTR; |
| GetStringAttributeAsBstr(ax::mojom::StringAttribute::kAccessKey, |
| &result->bstrVal); |
| } |
| break; |
| |
| case UIA_IsPeripheralPropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = VARIANT_FALSE; |
| break; |
| |
| case UIA_LevelPropertyId: |
| if (data.GetIntAttribute(ax::mojom::IntAttribute::kHierarchicalLevel, |
| &int_attribute)) { |
| result->vt = VT_I4; |
| result->intVal = int_attribute; |
| } |
| break; |
| |
| case UIA_LiveSettingPropertyId: { |
| result->vt = VT_I4; |
| result->intVal = LiveSetting::Off; |
| |
| std::string string_attribute; |
| if (data.GetStringAttribute(ax::mojom::StringAttribute::kLiveStatus, |
| &string_attribute)) { |
| if (string_attribute == "polite") |
| result->intVal = LiveSetting::Polite; |
| else if (string_attribute == "assertive") |
| result->intVal = LiveSetting::Assertive; |
| } |
| break; |
| } |
| |
| case UIA_OptimizeForVisualContentPropertyId: |
| result->vt = VT_BOOL; |
| result->boolVal = VARIANT_FALSE; |
| break; |
| |
| case UIA_PositionInSetPropertyId: { |
| base::Optional<int> pos_in_set = GetPosInSet(); |
| if (pos_in_set) { |
| result->vt = VT_I4; |
| result->intVal = *pos_in_set; |
| } |
| } break; |
| |
| case UIA_ScrollHorizontalScrollPercentPropertyId: { |
| V_VT(result) = VT_R8; |
| V_R8(result) = GetHorizontalScrollPercent(); |
| break; |
| } |
| |
| case UIA_ScrollVerticalScrollPercentPropertyId: { |
| V_VT(result) = VT_R8; |
| V_R8(result) = GetVerticalScrollPercent(); |
| break; |
| } |
| |
| case UIA_SizeOfSetPropertyId: { |
| base::Optional<int> set_size = GetSetSize(); |
| if (set_size) { |
| result->vt = VT_I4; |
| result->intVal = *set_size; |
| } |
| } break; |
| |
| case UIA_LandmarkTypePropertyId: { |
| base::Optional<LONG> landmark_type = ComputeUIALandmarkType(); |
| if (landmark_type) { |
| result->vt = VT_I4; |
| result->intVal = landmark_type.value(); |
| } |
| break; |
| } |
| |
| case UIA_LocalizedLandmarkTypePropertyId: { |
| base::string16 localized_landmark_type = |
| GetDelegate()->GetLocalizedStringForLandmarkType(); |
| if (!localized_landmark_type.empty()) { |
| result->vt = VT_BSTR; |
| result->bstrVal = SysAllocString(localized_landmark_type.c_str()); |
| } |
| break; |
| } |
| |
| // Not currently implemented. |
| case UIA_AnnotationObjectsPropertyId: |
| case UIA_AnnotationTypesPropertyId: |
| case UIA_CenterPointPropertyId: |
| case UIA_FillColorPropertyId: |
| case UIA_FillTypePropertyId: |
| case UIA_HeadingLevelPropertyId: |
| case UIA_ItemTypePropertyId: |
| case UIA_OutlineColorPropertyId: |
| case UIA_OutlineThicknessPropertyId: |
| case UIA_RotationPropertyId: |
| case UIA_SizePropertyId: |
| case UIA_VisualEffectsPropertyId: |
| break; |
| |
| // Provided by UIA Core; we should not implement. |
| case UIA_BoundingRectanglePropertyId: |
| case UIA_NativeWindowHandlePropertyId: |
| case UIA_ProcessIdPropertyId: |
| case UIA_ProviderDescriptionPropertyId: |
| case UIA_RuntimeIdPropertyId: |
| break; |
| } |
| |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_ProviderOptions(ProviderOptions* ret) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_PROVIDER_OPTIONS); |
| UIA_VALIDATE_CALL_1_ARG(ret); |
| |
| *ret = ProviderOptions_ServerSideProvider | ProviderOptions_UseComThreading; |
| return S_OK; |
| } |
| |
| IFACEMETHODIMP AXPlatformNodeWin::get_HostRawElementProvider( |
| IRawElementProviderSimple** provider) { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_GET_HOST_RAW_ELEMENT_PROVIDER); |
| UIA_VALIDATE_CALL_1_ARG(provider); |
| |
| *provider = nullptr; |
| return S_OK; |
| } |
| |
| // |
| // IRawElementProviderSimple2 implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::ShowContextMenu() { |
| WIN_ACCESSIBILITY_API_HISTOGRAM(UMA_API_SHOWCONTEXTMENU); |
| UIA_VALIDATE_CALL(); |
| |
| ui::AXActionData action_data; |
| action_data.action = ax::mojom::Action::kShowContextMenu; |
| delegate_->AccessibilityPerformAction(action_data); |
| return S_OK; |
| } |
| |
| // |
| // IServiceProvider implementation. |
| // |
| |
| IFACEMETHODIMP AXPlatformNodeWin::QueryService(REFGUID guidService, |
| REFIID riid, |
| void** object) { |
| COM_OBJECT_VALIDATE_1_ARG(object); |
| |
| if (riid == IID_IAccessible2) { |
| for (IAccessible2UsageObserver& observer : |
| GetIAccessible2UsageObserverList()) { |
| observer.OnIAccessible2Used(); |
| } |
| } |
| |
| if (guidService == IID_IAccessible || guidService == IID_IAccessible2 || |
| guidService == IID_IAccessible2_2 || |
| guidService == IID_IAccessibleTable || |
| guidService == IID_IAccessibleTable2 || |
| guidService == IID_IAccessibleTableCell || |
| guidService == IID_IAccessibleText) { |
| return QueryInterface(riid, object); |
| } |
| |
| // TODO(suproteem): Include IAccessibleEx in the list, potentially checking |
| // for version. |
| |
| *object = nullptr; |
| return E_FAIL; |
| } |
| |
| HRESULT AXPlatformNodeWin::GetTextAttributeValue(TEXTATTRIBUTEID attribute_id, |
| VARIANT* result) { |
| // Text attributes of kInlineTextBox nodes are stored on the parent node |
| // (which is typically a kStaticText or kLineBreak node). |
| if (GetData().role == ax::mojom::Role::kInlineTextBox) { |
| AXPlatformNodeWin* parent_platform_node = |
| static_cast<AXPlatformNodeWin*>(FromNativeViewAccessible(GetParent())); |
| if (!parent_platform_node) |
| return UIA_E_ELEMENTNOTAVAILABLE; |
| |
| return parent_platform_node->GetTextAttributeValue(attribute_id, result); |
| } |
| |
| switch (attribute_id) { |
| case UIA_BackgroundColorAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = |
| GetIntAttributeAsCOLORREF(ax::mojom::IntAttribute::kBackgroundColor); |
| break; |
| case UIA_BulletStyleAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = ComputeUIABulletStyle(); |
| break; |
| case UIA_CultureAttributeId: |
| return GetCultureAttributeAsVariant(result); |
| case UIA_FontNameAttributeId: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = GetFontNameAttributeAsBSTR(); |
| break; |
| case UIA_FontSizeAttributeId: |
| V_VT(result) = VT_R8; |
| V_R8(result) = GetFloatAttribute(ax::mojom::FloatAttribute::kFontSize); |
| break; |
| case UIA_FontWeightAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = GetFloatAttribute(ax::mojom::FloatAttribute::kFontWeight); |
| break; |
| case UIA_ForegroundColorAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = GetIntAttributeAsCOLORREF(ax::mojom::IntAttribute::kColor); |
| break; |
| case UIA_IsHiddenAttributeId: |
| V_VT(result) = VT_BOOL; |
| V_BOOL(result) = IsInvisibleOrIgnored() ? VARIANT_TRUE : VARIANT_FALSE; |
| break; |
| case UIA_IsItalicAttributeId: |
| V_VT(result) = VT_BOOL; |
| V_BOOL(result) = GetData().HasTextStyle(ax::mojom::TextStyle::kItalic) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| break; |
| case UIA_IsReadOnlyAttributeId: |
| V_VT(result) = VT_BOOL; |
| V_BOOL(result) = |
| (GetData().GetRestriction() == ax::mojom::Restriction::kReadOnly || |
| !GetData().HasState(ax::mojom::State::kEditable)) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| break; |
| case UIA_IsSubscriptAttributeId: |
| V_VT(result) = VT_BOOL; |
| V_BOOL(result) = |
| (GetData().GetTextPosition() == ax::mojom::TextPosition::kSubscript) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| break; |
| case UIA_IsSuperscriptAttributeId: |
| V_VT(result) = VT_BOOL; |
| V_BOOL(result) = |
| (GetData().GetTextPosition() == ax::mojom::TextPosition::kSuperscript) |
| ? VARIANT_TRUE |
| : VARIANT_FALSE; |
| break; |
| case UIA_OverlineStyleAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = GetUIATextDecorationStyle( |
| ax::mojom::IntAttribute::kTextOverlineStyle); |
| break; |
| case UIA_StrikethroughStyleAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = GetUIATextDecorationStyle( |
| ax::mojom::IntAttribute::kTextStrikethroughStyle); |
| break; |
| case UIA_StyleNameAttributeId: |
| V_VT(result) = VT_BSTR; |
| V_BSTR(result) = GetStyleNameAttributeAsBSTR(); |
| break; |
| case UIA_StyleIdAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = ComputeUIAStyleId(); |
| break; |
| case UIA_UnderlineStyleAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = GetUIATextDecorationStyle( |
| ax::mojom::IntAttribute::kTextUnderlineStyle); |
| break; |
| case UIA_TextFlowDirectionsAttributeId: |
| V_VT(result) = VT_I4; |
| V_I4(result) = |
| TextDirectionToFlowDirections(GetData().GetTextDirection()); |
| break; |
| default: |
| V_VT(result) = VT_UNKNOWN; |
| return ::UiaGetReservedNotSupportedValue(&V_UNKNOWN(result)); |
| } |
| |
| return S_OK; |
| } |
| |
| HRESULT AXPlatformNodeWin::GetCultureAttributeAsVariant(VARIANT* result) const { |
| const base::string16 language = |
| GetInheritedString16Attribute(ax::mojom::StringAttribute::kLanguage); |
| const LCID lcid = |
| LocaleNameToLCID(language.c_str(), LOCALE_ALLOW_NEUTRAL_NAMES); |
| if (!lcid) |
| return E_FAIL; |
| |
| V_VT(result) = VT_I4; |
| V_I4(result) = lcid; |
| return S_OK; |
| } |
| |
| COLORREF AXPlatformNodeWin::GetIntAttributeAsCOLORREF( |
| ax::mojom::IntAttribute attribute) const { |
| const SkColor color = GetIntAttribute(attribute); |
| return skia::SkColorToCOLORREF(color); |
| } |
| |
| BulletStyle AXPlatformNodeWin::ComputeUIABulletStyle() const { |
| // UIA expects the list style of a non-list-item to be none however the |
| // default list style cascaded is disc not none. Therefore we must ensure that |
| // this node is contained within a list-item to distinguish non-list-items and |
| // disc styled list items. |
| const AXPlatformNodeBase* current_node = this; |
| while (current_node && |
| current_node->GetData().role != ax::mojom::Role::kListItem) { |
| current_node = FromNativeViewAccessible(current_node->GetParent()); |
| } |
| |
| const ax::mojom::ListStyle list_style = |
| current_node ? current_node->GetData().GetListStyle() |
| : ax::mojom::ListStyle::kNone; |
| |
| switch (list_style) { |
| case ax::mojom::ListStyle::kNone: |
| return BulletStyle::BulletStyle_None; |
| case ax::mojom::ListStyle::kCircle: |
| return BulletStyle::BulletStyle_HollowRoundBullet; |
| case ax::mojom::ListStyle::kDisc: |
| return BulletStyle::BulletStyle_FilledRoundBullet; |
| case ax::mojom::ListStyle::kImage: |
| return BulletStyle::BulletStyle_Other; |
| case ax::mojom::ListStyle::kNumeric: |
| case ax::mojom::ListStyle::kOther: |
| return BulletStyle::BulletStyle_None; |
| case ax::mojom::ListStyle::kSquare: |
| return BulletStyle::BulletStyle_FilledSquareBullet; |
| } |
| } |
| |
| LONG AXPlatformNodeWin::ComputeUIAStyleId() const { |
| const AXPlatformNodeBase* current_node = this; |
| do { |
| switch (current_node->GetData().role) { |
| case ax::mojom::Role::kHeading: |
| return AXHierarchicalLevelToUIAStyleId(current_node->GetIntAttribute( |
| ax::mojom::IntAttribute::kHierarchicalLevel)); |
| case ax::mojom::Role::kListItem: |
| return AXListStyleToUIAStyleId(current_node->GetData().GetListStyle()); |
| case ax::mojom::Role::kMark: |
| return StyleId_Custom; |
| case ax::mojom::Role::kBlockquote: |
| return StyleId_Quote; |
| default: |
| break; |
| } |
| current_node = FromNativeViewAccessible(current_node->GetParent()); |
| } while (current_node); |
| |
| return StyleId_Normal; |
| } |
| |
| // static |
| LONG AXPlatformNodeWin::AXHierarchicalLevelToUIAStyleId( |
| int32_t hierarchical_level) { |
| switch (hierarchical_level) { |
| case 0: |
| return StyleId_Normal; |
| case 1: |
| return StyleId_Heading1; |
| case 2: |
| return StyleId_Heading2; |
| case 3: |
| return StyleId_Heading3; |
| case 4: |
| return StyleId_Heading4; |
| case 5: |
| return StyleId_Heading5; |
| case 6: |
| return StyleId_Heading6; |
| case 7: |
| return StyleId_Heading7; |
| case 8: |
| return StyleId_Heading8; |
| case 9: |
| return StyleId_Heading9; |
| default: |
| return StyleId_Custom; |
| } |
| } |
| |
| // static |
| LONG AXPlatformNodeWin::AXListStyleToUIAStyleId( |
| ax::mojom::ListStyle list_style) { |
| switch (list_style) { |
| case ax::mojom::ListStyle::kNone: |
| return StyleId_Normal; |
| case ax::mojom::ListStyle::kCircle: |
| case ax::mojom::ListStyle::kDisc: |
| case ax::mojom::ListStyle::kImage: |
| case ax::mojom::ListStyle::kSquare: |
| return StyleId_BulletedList; |
| case ax::mojom::ListStyle::kNumeric: |
| case ax::mojom::ListStyle::kOther: |
| return StyleId_NumberedList; |
| } |
| } |
| |
| // static |
| FlowDirections AXPlatformNodeWin::TextDirectionToFlowDirections( |
| ax::mojom::TextDirection text_direction) { |
| switch (text_direction) { |
| case ax::mojom::TextDirection::kNone: |
| return FlowDirections::FlowDirections_Default; |
| case ax::mojom::TextDirection::kLtr: |
| return FlowDirections::FlowDirections_Default; |
| case ax::mojom::TextDirection::kRtl: |
| return FlowDirections::FlowDirections_RightToLeft; |
| case ax::mojom::TextDirection::kTtb: |
| return FlowDirections::FlowDirections_Vertical; |
| case ax::mojom::TextDirection::kBtt: |
| return FlowDirections::FlowDirections_BottomToTop; |
| } |
| } |
| |
| // IRawElementProviderSimple support methods. |
| |
| bool AXPlatformNodeWin::IsPatternProviderSupported(PATTERNID pattern_id) { |
| return GetPatternProviderFactoryMethod(pattern_id); |
| } |
| |
| // |
| // Private member functions. |
| // |
| int AXPlatformNodeWin::MSAARole() { |
| // 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()) |
| return ROLE_SYSTEM_GROUPING; |
| |
| switch (GetData().role) { |
| case ax::mojom::Role::kAlert: |
| case ax::mojom::Role::kAlertDialog: |
| return ROLE_SYSTEM_ALERT; |
| |
| case ax::mojom::Role::kAnchor: |
| return ROLE_SYSTEM_LINK; |
| |
| case ax::mojom::Role::kApplication: |
| return ROLE_SYSTEM_APPLICATION; |
| |
| case ax::mojom::Role::kArticle: |
| return ROLE_SYSTEM_DOCUMENT; |
| |
| case ax::mojom::Role::kAudio: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kBanner: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kBlockquote: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kButton: |
| return ROLE_SYSTEM_PUSHBUTTON; |
| |
| case ax::mojom::Role::kCanvas: |
| return ROLE_SYSTEM_GRAPHIC; |
| |
| case ax::mojom::Role::kCaption: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kCaret: |
| return ROLE_SYSTEM_CARET; |
| |
| case ax::mojom::Role::kCell: |
| return ROLE_SYSTEM_CELL; |
| |
| case ax::mojom::Role::kCheckBox: |
| return ROLE_SYSTEM_CHECKBUTTON; |
| |
| case ax::mojom::Role::kClient: |
| return ROLE_SYSTEM_PANE; |
| |
| case ax::mojom::Role::kColorWell: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kColumn: |
| return ROLE_SYSTEM_COLUMN; |
| |
| case ax::mojom::Role::kColumnHeader: |
| return ROLE_SYSTEM_COLUMNHEADER; |
| |
| case ax::mojom::Role::kComboBoxGrouping: |
| case ax::mojom::Role::kComboBoxMenuButton: |
| return ROLE_SYSTEM_COMBOBOX; |
| |
| case ax::mojom::Role::kComplementary: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kContentDeletion: |
| case ax::mojom::Role::kContentInsertion: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kContentInfo: |
| case ax::mojom::Role::kFooter: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kDate: |
| case ax::mojom::Role::kDateTime: |
| return ROLE_SYSTEM_DROPLIST; |
| |
| case ax::mojom::Role::kDefinition: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kDescriptionListDetail: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kDescriptionList: |
| return ROLE_SYSTEM_LIST; |
| |
| case ax::mojom::Role::kDescriptionListTerm: |
| return ROLE_SYSTEM_LISTITEM; |
| |
| case ax::mojom::Role::kDesktop: |
| return ROLE_SYSTEM_PANE; |
| |
| case ax::mojom::Role::kDetails: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kDialog: |
| return ROLE_SYSTEM_DIALOG; |
| |
| case ax::mojom::Role::kDisclosureTriangle: |
| return ROLE_SYSTEM_PUSHBUTTON; |
| |
| case ax::mojom::Role::kDirectory: |
| return ROLE_SYSTEM_LIST; |
| |
| case ax::mojom::Role::kDocCover: |
| return ROLE_SYSTEM_GRAPHIC; |
| |
| case ax::mojom::Role::kDocBackLink: |
| case ax::mojom::Role::kDocBiblioRef: |
| case ax::mojom::Role::kDocGlossRef: |
| case ax::mojom::Role::kDocNoteRef: |
| return ROLE_SYSTEM_LINK; |
| |
| case ax::mojom::Role::kDocBiblioEntry: |
| case ax::mojom::Role::kDocEndnote: |
| case ax::mojom::Role::kDocFootnote: |
| return ROLE_SYSTEM_LISTITEM; |
| |
| case ax::mojom::Role::kDocPageBreak: |
| return ROLE_SYSTEM_SEPARATOR; |
| |
| case ax::mojom::Role::kDocAbstract: |
| case ax::mojom::Role::kDocAcknowledgments: |
| case ax::mojom::Role::kDocAfterword: |
| case ax::mojom::Role::kDocAppendix: |
| case ax::mojom::Role::kDocBibliography: |
| case ax::mojom::Role::kDocChapter: |
| case ax::mojom::Role::kDocColophon: |
| case ax::mojom::Role::kDocConclusion: |
| case ax::mojom::Role::kDocCredit: |
| case ax::mojom::Role::kDocCredits: |
| case ax::mojom::Role::kDocDedication: |
| case ax::mojom::Role::kDocEndnotes: |
| case ax::mojom::Role::kDocEpigraph: |
| case ax::mojom::Role::kDocEpilogue: |
| case ax::mojom::Role::kDocErrata: |
| case ax::mojom::Role::kDocExample: |
| case ax::mojom::Role::kDocForeword: |
| case ax::mojom::Role::kDocGlossary: |
| case ax::mojom::Role::kDocIndex: |
| case ax::mojom::Role::kDocIntroduction: |
| case ax::mojom::Role::kDocNotice: |
| case ax::mojom::Role::kDocPageList: |
| case ax::mojom::Role::kDocPart: |
| case ax::mojom::Role::kDocPreface: |
| case ax::mojom::Role::kDocPrologue: |
| case ax::mojom::Role::kDocPullquote: |
| case ax::mojom::Role::kDocQna: |
| case ax::mojom::Role::kDocSubtitle: |
| case ax::mojom::Role::kDocTip: |
| case ax::mojom::Role::kDocToc: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kDocument: |
| case ax::mojom::Role::kRootWebArea: |
| case ax::mojom::Role::kWebArea: |
| return ROLE_SYSTEM_DOCUMENT; |
| |
| case ax::mojom::Role::kEmbeddedObject: |
| if (GetDelegate()->GetChildCount()) { |
| return ROLE_SYSTEM_GROUPING; |
| } else { |
| return ROLE_SYSTEM_CLIENT; |
| } |
| |
| case ax::mojom::Role::kFigcaption: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kFigure: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kFeed: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kForm: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kGenericContainer: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kGraphicsDocument: |
| return ROLE_SYSTEM_DOCUMENT; |
| |
| case ax::mojom::Role::kGraphicsObject: |
| return ROLE_SYSTEM_PANE; |
| |
| case ax::mojom::Role::kGraphicsSymbol: |
| return ROLE_SYSTEM_GRAPHIC; |
| |
| case ax::mojom::Role::kGrid: |
| return ROLE_SYSTEM_TABLE; |
| |
| case ax::mojom::Role::kGroup: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kHeading: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kIframe: |
| return ROLE_SYSTEM_DOCUMENT; |
| |
| case ax::mojom::Role::kIframePresentational: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kImage: |
| return ROLE_SYSTEM_GRAPHIC; |
| |
| case ax::mojom::Role::kImageMap: |
| return ROLE_SYSTEM_CLIENT; |
| |
| case ax::mojom::Role::kInputTime: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kInlineTextBox: |
| return ROLE_SYSTEM_STATICTEXT; |
| |
| case ax::mojom::Role::kLabelText: |
| case ax::mojom::Role::kLegend: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kLayoutTable: |
| return ROLE_SYSTEM_TABLE; |
| |
| case ax::mojom::Role::kLayoutTableCell: |
| return ROLE_SYSTEM_CELL; |
| |
| case ax::mojom::Role::kLayoutTableColumn: |
| return ROLE_SYSTEM_COLUMN; |
| |
| case ax::mojom::Role::kLayoutTableRow: |
| return ROLE_SYSTEM_ROW; |
| |
| case ax::mojom::Role::kLink: |
| return ROLE_SYSTEM_LINK; |
| |
| case ax::mojom::Role::kList: |
| return ROLE_SYSTEM_LIST; |
| |
| case ax::mojom::Role::kListBox: |
| return ROLE_SYSTEM_LIST; |
| |
| case ax::mojom::Role::kListBoxOption: |
| return ROLE_SYSTEM_LISTITEM; |
| |
| case ax::mojom::Role::kListGrid: |
| return ROLE_SYSTEM_LIST; |
| |
| case ax::mojom::Role::kListItem: |
| return ROLE_SYSTEM_LISTITEM; |
| |
| case ax::mojom::Role::kLog: |
| return ROLE_SYSTEM_CLIENT; |
| |
| case ax::mojom::Role::kMain: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kMark: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kMarquee: |
| return ROLE_SYSTEM_ANIMATION; |
| |
| case ax::mojom::Role::kMath: |
| return ROLE_SYSTEM_EQUATION; |
| |
| case ax::mojom::Role::kMenu: |
| case ax::mojom::Role::kMenuButton: |
| return ROLE_SYSTEM_MENUPOPUP; |
| |
| case ax::mojom::Role::kMenuBar: |
| return ROLE_SYSTEM_MENUBAR; |
| |
| case ax::mojom::Role::kMenuItem: |
| return ROLE_SYSTEM_MENUITEM; |
| |
| case ax::mojom::Role::kMenuItemCheckBox: |
| return ROLE_SYSTEM_MENUITEM; |
| |
| case ax::mojom::Role::kMenuItemRadio: |
| return ROLE_SYSTEM_MENUITEM; |
| |
| case ax::mojom::Role::kMenuListPopup: |
| if (IsAncestorComboBox()) |
| return ROLE_SYSTEM_LIST; |
| return ROLE_SYSTEM_MENUPOPUP; |
| |
| case ax::mojom::Role::kMenuListOption: |
| if (IsAncestorComboBox()) |
| return ROLE_SYSTEM_LISTITEM; |
| return ROLE_SYSTEM_MENUITEM; |
| |
| case ax::mojom::Role::kMeter: |
| return ROLE_SYSTEM_PROGRESSBAR; |
| |
| case ax::mojom::Role::kNavigation: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kNote: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kParagraph: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kPopUpButton: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "select") |
| return ROLE_SYSTEM_COMBOBOX; |
| return ROLE_SYSTEM_BUTTONMENU; |
| } |
| |
| case ax::mojom::Role::kPre: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kProgressIndicator: |
| return ROLE_SYSTEM_PROGRESSBAR; |
| |
| case ax::mojom::Role::kRadioButton: |
| return ROLE_SYSTEM_RADIOBUTTON; |
| |
| case ax::mojom::Role::kRadioGroup: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kRegion: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "section" && |
| GetData() |
| .GetString16Attribute(ax::mojom::StringAttribute::kName) |
| .empty()) { |
| // Do not use ARIA mapping for nameless <section>. |
| return ROLE_SYSTEM_GROUPING; |
| } |
| // Use ARIA mapping. |
| return ROLE_SYSTEM_PANE; |
| } |
| |
| case ax::mojom::Role::kRow: { |
| // Role changes depending on whether row is inside a treegrid |
| // https://www.w3.org/TR/core-aam-1.1/#role-map-row |
| return IsInTreeGrid() ? ROLE_SYSTEM_OUTLINEITEM : ROLE_SYSTEM_ROW; |
| } |
| |
| case ax::mojom::Role::kRowHeader: |
| return ROLE_SYSTEM_ROWHEADER; |
| |
| case ax::mojom::Role::kRuby: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kScrollBar: |
| return ROLE_SYSTEM_SCROLLBAR; |
| |
| case ax::mojom::Role::kScrollView: |
| return ROLE_SYSTEM_PANE; |
| |
| case ax::mojom::Role::kSearch: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kSlider: |
| return ROLE_SYSTEM_SLIDER; |
| |
| case ax::mojom::Role::kSliderThumb: |
| return ROLE_SYSTEM_SLIDER; |
| |
| case ax::mojom::Role::kSpinButton: |
| return ROLE_SYSTEM_SPINBUTTON; |
| |
| case ax::mojom::Role::kSwitch: |
| return ROLE_SYSTEM_CHECKBUTTON; |
| |
| case ax::mojom::Role::kAnnotation: |
| case ax::mojom::Role::kListMarker: |
| case ax::mojom::Role::kStaticText: |
| return ROLE_SYSTEM_STATICTEXT; |
| |
| case ax::mojom::Role::kStatus: |
| return ROLE_SYSTEM_STATUSBAR; |
| |
| case ax::mojom::Role::kSplitter: |
| return ROLE_SYSTEM_SEPARATOR; |
| |
| case ax::mojom::Role::kSvgRoot: |
| return ROLE_SYSTEM_GRAPHIC; |
| |
| case ax::mojom::Role::kTab: |
| return ROLE_SYSTEM_PAGETAB; |
| |
| case ax::mojom::Role::kTable: |
| return ROLE_SYSTEM_TABLE; |
| |
| case ax::mojom::Role::kTableHeaderContainer: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kTabList: |
| return ROLE_SYSTEM_PAGETABLIST; |
| |
| case ax::mojom::Role::kTabPanel: |
| return ROLE_SYSTEM_PROPERTYPAGE; |
| |
| case ax::mojom::Role::kTerm: |
| return ROLE_SYSTEM_LISTITEM; |
| |
| case ax::mojom::Role::kTitleBar: |
| return ROLE_SYSTEM_TITLEBAR; |
| |
| case ax::mojom::Role::kToggleButton: |
| return ROLE_SYSTEM_PUSHBUTTON; |
| |
| case ax::mojom::Role::kTextField: |
| case ax::mojom::Role::kSearchBox: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kTextFieldWithComboBox: |
| return ROLE_SYSTEM_COMBOBOX; |
| |
| case ax::mojom::Role::kAbbr: |
| case ax::mojom::Role::kTime: |
| return ROLE_SYSTEM_TEXT; |
| |
| case ax::mojom::Role::kTimer: |
| return ROLE_SYSTEM_CLOCK; |
| |
| case ax::mojom::Role::kToolbar: |
| return ROLE_SYSTEM_TOOLBAR; |
| |
| case ax::mojom::Role::kTooltip: |
| return ROLE_SYSTEM_TOOLTIP; |
| |
| case ax::mojom::Role::kTree: |
| return ROLE_SYSTEM_OUTLINE; |
| |
| case ax::mojom::Role::kTreeGrid: |
| return ROLE_SYSTEM_OUTLINE; |
| |
| case ax::mojom::Role::kTreeItem: |
| return ROLE_SYSTEM_OUTLINEITEM; |
| |
| case ax::mojom::Role::kLineBreak: |
| return ROLE_SYSTEM_WHITESPACE; |
| |
| case ax::mojom::Role::kVideo: |
| return ROLE_SYSTEM_GROUPING; |
| |
| case ax::mojom::Role::kWebView: |
| return ROLE_SYSTEM_CLIENT; |
| |
| case ax::mojom::Role::kPane: |
| case ax::mojom::Role::kWindow: |
| // Do not return ROLE_SYSTEM_WINDOW as that is a special MSAA system |
| // role used to indicate a real native window object. It is |
| // automatically created by oleacc.dll as a parent of the root of our |
| // hierarchy, matching the HWND. |
| return ROLE_SYSTEM_PANE; |
| |
| case ax::mojom::Role::kIgnored: |
| case ax::mojom::Role::kKeyboard: |
| case ax::mojom::Role::kNone: |
| case ax::mojom::Role::kPresentational: |
| case ax::mojom::Role::kUnknown: |
| return ROLE_SYSTEM_PANE; |
| } |
| |
| NOTREACHED(); |
| return ROLE_SYSTEM_CLIENT; |
| } |
| |
| std::string AXPlatformNodeWin::StringOverrideForMSAARole() { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| |
| switch (GetData().role) { |
| case ax::mojom::Role::kBlockquote: |
| case ax::mojom::Role::kDefinition: |
| case ax::mojom::Role::kImageMap: |
| return html_tag; |
| |
| case ax::mojom::Role::kCanvas: |
| if (GetData().GetBoolAttribute( |
| ax::mojom::BoolAttribute::kCanvasHasFallback)) { |
| return html_tag; |
| } |
| break; |
| |
| case ax::mojom::Role::kForm: |
| // This could be a div with the role of form |
| // so we return just the string "form". |
| return "form"; |
| |
| case ax::mojom::Role::kHeading: |
| if (!html_tag.empty()) |
| return html_tag; |
| break; |
| |
| case ax::mojom::Role::kParagraph: |
| return html_tag; |
| |
| case ax::mojom::Role::kLog: |
| return "log"; |
| |
| case ax::mojom::Role::kGenericContainer: |
| // Use html tag if available. In the case where there is no tag, e.g. |
| // for anonymous content inserted by blink, treat it as a "div". This |
| // can occur if the markup had a block and inline element as siblings -- |
| // blink will wrap the inline with a block in this case. |
| if (html_tag.empty()) |
| return "div"; |
| return html_tag; |
| |
| case ax::mojom::Role::kSwitch: |
| return "switch"; |
| |
| default: |
| return ""; |
| } |
| |
| return ""; |
| } |
| |
| bool AXPlatformNodeWin::IsWebAreaForPresentationalIframe() { |
| if (GetData().role != ax::mojom::Role::kWebArea && |
| GetData().role != ax::mojom::Role::kRootWebArea) { |
| return false; |
| } |
| |
| AXPlatformNodeBase* parent = FromNativeViewAccessible(GetParent()); |
| if (!parent) |
| return false; |
| |
| return parent->GetData().role == ax::mojom::Role::kIframePresentational; |
| } |
| |
| int32_t AXPlatformNodeWin::ComputeIA2State() { |
| const AXNodeData& data = GetData(); |
| int32_t ia2_state = IA2_STATE_OPAQUE; |
| |
| if (HasIntAttribute(ax::mojom::IntAttribute::kCheckedState)) |
| ia2_state |= IA2_STATE_CHECKABLE; |
| |
| if (HasIntAttribute(ax::mojom::IntAttribute::kInvalidState) && |
| GetIntAttribute(ax::mojom::IntAttribute::kInvalidState) != |
| static_cast<int32_t>(ax::mojom::InvalidState::kFalse)) |
| ia2_state |= IA2_STATE_INVALID_ENTRY; |
| if (data.HasState(ax::mojom::State::kRequired)) |
| ia2_state |= IA2_STATE_REQUIRED; |
| if (data.HasState(ax::mojom::State::kVertical)) |
| ia2_state |= IA2_STATE_VERTICAL; |
| if (data.HasState(ax::mojom::State::kHorizontal)) |
| ia2_state |= IA2_STATE_HORIZONTAL; |
| |
| if (data.HasState(ax::mojom::State::kEditable)) |
| ia2_state |= IA2_STATE_EDITABLE; |
| |
| if (IsPlainTextField() || IsRichTextField()) { |
| if (data.HasState(ax::mojom::State::kMultiline)) { |
| ia2_state |= IA2_STATE_MULTI_LINE; |
| } else { |
| ia2_state |= IA2_STATE_SINGLE_LINE; |
| } |
| if (!IsInvisibleOrIgnored()) |
| ia2_state |= IA2_STATE_SELECTABLE_TEXT; |
| } |
| |
| // TODO(crbug.com/865101) Use |
| // data.HasState(ax::mojom::State::kAutofillAvailable) instead of |
| // IsFocusedInputWithSuggestions() |
| if (!GetStringAttribute(ax::mojom::StringAttribute::kAutoComplete).empty() || |
| IsFocusedInputWithSuggestions()) { |
| ia2_state |= IA2_STATE_SUPPORTS_AUTOCOMPLETION; |
| } |
| |
| if (GetBoolAttribute(ax::mojom::BoolAttribute::kModal)) |
| ia2_state |= IA2_STATE_MODAL; |
| |
| switch (data.role) { |
| case ax::mojom::Role::kMenuListPopup: |
| case ax::mojom::Role::kMenuListOption: |
| ia2_state &= ~(IA2_STATE_EDITABLE); |
| break; |
| default: |
| break; |
| } |
| return ia2_state; |
| } |
| |
| // ComputeIA2Role() only returns a role if the MSAA role doesn't suffice, |
| // otherwise this method returns 0. See AXPlatformNodeWin::role(). |
| int32_t AXPlatformNodeWin::ComputeIA2Role() { |
| // 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()) { |
| return ROLE_SYSTEM_GROUPING; |
| } |
| |
| int32_t ia2_role = 0; |
| |
| switch (GetData().role) { |
| case ax::mojom::Role::kBanner: |
| // CORE-AAM recommends LANDMARK instead of HEADER. |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kBlockquote: |
| ia2_role = IA2_ROLE_SECTION; |
| break; |
| case ax::mojom::Role::kCanvas: |
| if (GetBoolAttribute(ax::mojom::BoolAttribute::kCanvasHasFallback)) { |
| ia2_role = IA2_ROLE_CANVAS; |
| } |
| break; |
| case ax::mojom::Role::kCaption: |
| ia2_role = IA2_ROLE_CAPTION; |
| break; |
| case ax::mojom::Role::kColorWell: |
| ia2_role = IA2_ROLE_COLOR_CHOOSER; |
| break; |
| case ax::mojom::Role::kComplementary: |
| // CORE-AAM recommends LANDMARK instead of COMPLEMENTARY_CONTENT. |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kContentDeletion: |
| ia2_role = IA2_ROLE_CONTENT_DELETION; |
| break; |
| case ax::mojom::Role::kContentInsertion: |
| ia2_role = IA2_ROLE_CONTENT_INSERTION; |
| break; |
| case ax::mojom::Role::kContentInfo: |
| case ax::mojom::Role::kFooter: |
| // CORE-AAM recommends LANDMARK instead of FOOTER. |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kDate: |
| case ax::mojom::Role::kDateTime: |
| ia2_role = IA2_ROLE_DATE_EDITOR; |
| break; |
| case ax::mojom::Role::kDefinition: |
| ia2_role = IA2_ROLE_PARAGRAPH; |
| break; |
| case ax::mojom::Role::kDescriptionListDetail: |
| ia2_role = IA2_ROLE_PARAGRAPH; |
| break; |
| case ax::mojom::Role::kDocAcknowledgments: |
| case ax::mojom::Role::kDocAfterword: |
| case ax::mojom::Role::kDocAppendix: |
| case ax::mojom::Role::kDocBibliography: |
| case ax::mojom::Role::kDocChapter: |
| case ax::mojom::Role::kDocConclusion: |
| case ax::mojom::Role::kDocCredits: |
| case ax::mojom::Role::kDocEndnotes: |
| case ax::mojom::Role::kDocEpilogue: |
| case ax::mojom::Role::kDocErrata: |
| case ax::mojom::Role::kDocForeword: |
| case ax::mojom::Role::kDocGlossary: |
| case ax::mojom::Role::kDocIndex: |
| case ax::mojom::Role::kDocIntroduction: |
| case ax::mojom::Role::kDocPageList: |
| case ax::mojom::Role::kDocPart: |
| case ax::mojom::Role::kDocPreface: |
| case ax::mojom::Role::kDocPrologue: |
| case ax::mojom::Role::kDocToc: |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kDocAbstract: |
| case ax::mojom::Role::kDocColophon: |
| case ax::mojom::Role::kDocCredit: |
| case ax::mojom::Role::kDocDedication: |
| case ax::mojom::Role::kDocEpigraph: |
| case ax::mojom::Role::kDocExample: |
| case ax::mojom::Role::kDocPullquote: |
| case ax::mojom::Role::kDocQna: |
| ia2_role = IA2_ROLE_SECTION; |
| break; |
| case ax::mojom::Role::kDocSubtitle: |
| ia2_role = IA2_ROLE_HEADING; |
| break; |
| case ax::mojom::Role::kDocTip: |
| case ax::mojom::Role::kDocNotice: |
| ia2_role = IA2_ROLE_NOTE; |
| break; |
| case ax::mojom::Role::kDocFootnote: |
| ia2_role = IA2_ROLE_FOOTNOTE; |
| break; |
| case ax::mojom::Role::kEmbeddedObject: |
| if (!GetDelegate()->GetChildCount()) { |
| ia2_role = IA2_ROLE_EMBEDDED_OBJECT; |
| } |
| break; |
| case ax::mojom::Role::kFigcaption: |
| ia2_role = IA2_ROLE_CAPTION; |
| break; |
| case ax::mojom::Role::kForm: |
| ia2_role = IA2_ROLE_FORM; |
| break; |
| case ax::mojom::Role::kGenericContainer: |
| ia2_role = IA2_ROLE_SECTION; |
| break; |
| case ax::mojom::Role::kHeading: |
| ia2_role = IA2_ROLE_HEADING; |
| break; |
| case ax::mojom::Role::kIframe: |
| ia2_role = IA2_ROLE_INTERNAL_FRAME; |
| break; |
| case ax::mojom::Role::kImageMap: |
| ia2_role = IA2_ROLE_IMAGE_MAP; |
| break; |
| case ax::mojom::Role::kLabelText: |
| case ax::mojom::Role::kLegend: |
| ia2_role = IA2_ROLE_LABEL; |
| break; |
| case ax::mojom::Role::kMain: |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kMark: |
| ia2_role = IA2_ROLE_TEXT_FRAME; |
| break; |
| case ax::mojom::Role::kMenuItemCheckBox: |
| ia2_role = IA2_ROLE_CHECK_MENU_ITEM; |
| break; |
| case ax::mojom::Role::kMenuItemRadio: |
| ia2_role = IA2_ROLE_RADIO_MENU_ITEM; |
| break; |
| case ax::mojom::Role::kMeter: |
| // TODO(accessibiity) Uncomment IA2_ROLE_LEVEL_BAR once screen readers |
| // adopt it. Currently, a <meter> ends up being spoken as a progress |
| // bar, which is confusing. IA2_ROLE_LEVEL_BAR is the correct mapping |
| // according to CORE-AAM. ia2_role = IA2_ROLE_LEVEL_BAR; |
| break; |
| case ax::mojom::Role::kNavigation: |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kNote: |
| ia2_role = IA2_ROLE_NOTE; |
| break; |
| case ax::mojom::Role::kParagraph: |
| ia2_role = IA2_ROLE_PARAGRAPH; |
| break; |
| case ax::mojom::Role::kPre: |
| ia2_role = IA2_ROLE_PARAGRAPH; |
| break; |
| case ax::mojom::Role::kRegion: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "section" && |
| GetData() |
| .GetString16Attribute(ax::mojom::StringAttribute::kName) |
| .empty()) { |
| // Do not use ARIA mapping for nameless <section>. |
| ia2_role = IA2_ROLE_SECTION; |
| } else { |
| // Use ARIA mapping. |
| ia2_role = IA2_ROLE_LANDMARK; |
| } |
| break; |
| } |
| case ax::mojom::Role::kRuby: |
| ia2_role = IA2_ROLE_TEXT_FRAME; |
| break; |
| case ax::mojom::Role::kSearch: |
| ia2_role = IA2_ROLE_LANDMARK; |
| break; |
| case ax::mojom::Role::kSwitch: |
| ia2_role = IA2_ROLE_TOGGLE_BUTTON; |
| break; |
| case ax::mojom::Role::kTableHeaderContainer: |
| ia2_role = IA2_ROLE_SECTION; |
| break; |
| case ax::mojom::Role::kToggleButton: |
| ia2_role = IA2_ROLE_TOGGLE_BUTTON; |
| break; |
| case ax::mojom::Role::kAbbr: |
| case ax::mojom::Role::kTime: |
| ia2_role = IA2_ROLE_TEXT_FRAME; |
| break; |
| default: |
| break; |
| } |
| return ia2_role; |
| } |
| |
| std::vector<base::string16> AXPlatformNodeWin::ComputeIA2Attributes() { |
| std::vector<base::string16> attribute_list; |
| ComputeAttributes(&attribute_list); |
| return attribute_list; |
| } |
| |
| base::string16 AXPlatformNodeWin::UIAAriaRole() { |
| // 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()) |
| return L"group"; |
| |
| switch (GetData().role) { |
| case ax::mojom::Role::kAlert: |
| return L"alert"; |
| |
| case ax::mojom::Role::kAlertDialog: |
| // Our MSAA implementation suggests the use of |
| // "alert", not "alertdialog" because some |
| // Windows screen readers are not compatible with |
| // |ax::mojom::Role::kAlertDialog| yet. |
| return L"alert"; |
| |
| case ax::mojom::Role::kAnchor: |
| return L"link"; |
| |
| case ax::mojom::Role::kApplication: |
| return L"application"; |
| |
| case ax::mojom::Role::kArticle: |
| return L"article"; |
| |
| case ax::mojom::Role::kAudio: |
| return L"group"; |
| |
| case ax::mojom::Role::kBanner: |
| return L"banner"; |
| |
| case ax::mojom::Role::kBlockquote: |
| return L"group"; |
| |
| case ax::mojom::Role::kButton: |
| return L"button"; |
| |
| case ax::mojom::Role::kCanvas: |
| return L"img"; |
| |
| case ax::mojom::Role::kCaption: |
| return L"description"; |
| |
| case ax::mojom::Role::kCaret: |
| return L"region"; |
| |
| case ax::mojom::Role::kCell: |
| return L"gridcell"; |
| |
| case ax::mojom::Role::kCheckBox: |
| return L"checkbox"; |
| |
| case ax::mojom::Role::kClient: |
| return L"region"; |
| |
| case ax::mojom::Role::kColorWell: |
| return L"textbox"; |
| |
| case ax::mojom::Role::kColumn: |
| return L"region"; |
| |
| case ax::mojom::Role::kColumnHeader: |
| return L"columnheader"; |
| |
| case ax::mojom::Role::kComboBoxGrouping: |
| case ax::mojom::Role::kComboBoxMenuButton: |
| return L"combobox"; |
| |
| case ax::mojom::Role::kComplementary: |
| return L"complementary"; |
| |
| case ax::mojom::Role::kContentDeletion: |
| case ax::mojom::Role::kContentInsertion: |
| return L"group"; |
| |
| case ax::mojom::Role::kContentInfo: |
| case ax::mojom::Role::kFooter: |
| return L"contentinfo"; |
| |
| case ax::mojom::Role::kDate: |
| case ax::mojom::Role::kDateTime: |
| return L"list"; |
| |
| case ax::mojom::Role::kDefinition: |
| return L"definition"; |
| |
| case ax::mojom::Role::kDescriptionListDetail: |
| return L"description"; |
| |
| case ax::mojom::Role::kDescriptionList: |
| return L"list"; |
| |
| case ax::mojom::Role::kDescriptionListTerm: |
| return L"listitem"; |
| |
| case ax::mojom::Role::kDesktop: |
| return L"document"; |
| |
| case ax::mojom::Role::kDetails: |
| return L"group"; |
| |
| case ax::mojom::Role::kDialog: |
| return L"dialog"; |
| |
| case ax::mojom::Role::kDisclosureTriangle: |
| return L"button"; |
| |
| case ax::mojom::Role::kDirectory: |
| return L"directory"; |
| |
| case ax::mojom::Role::kDocCover: |
| return L"img"; |
| |
| case ax::mojom::Role::kDocBackLink: |
| case ax::mojom::Role::kDocBiblioRef: |
| case ax::mojom::Role::kDocGlossRef: |
| case ax::mojom::Role::kDocNoteRef: |
| return L"link"; |
| |
| case ax::mojom::Role::kDocBiblioEntry: |
| case ax::mojom::Role::kDocEndnote: |
| case ax::mojom::Role::kDocFootnote: |
| return L"listitem"; |
| |
| case ax::mojom::Role::kDocPageBreak: |
| return L"separator"; |
| |
| case ax::mojom::Role::kDocAbstract: |
| case ax::mojom::Role::kDocAcknowledgments: |
| case ax::mojom::Role::kDocAfterword: |
| case ax::mojom::Role::kDocAppendix: |
| case ax::mojom::Role::kDocBibliography: |
| case ax::mojom::Role::kDocChapter: |
| case ax::mojom::Role::kDocColophon: |
| case ax::mojom::Role::kDocConclusion: |
| case ax::mojom::Role::kDocCredit: |
| case ax::mojom::Role::kDocCredits: |
| case ax::mojom::Role::kDocDedication: |
| case ax::mojom::Role::kDocEndnotes: |
| case ax::mojom::Role::kDocEpigraph: |
| case ax::mojom::Role::kDocEpilogue: |
| case ax::mojom::Role::kDocErrata: |
| case ax::mojom::Role::kDocExample: |
| case ax::mojom::Role::kDocForeword: |
| case ax::mojom::Role::kDocGlossary: |
| case ax::mojom::Role::kDocIndex: |
| case ax::mojom::Role::kDocIntroduction: |
| case ax::mojom::Role::kDocNotice: |
| case ax::mojom::Role::kDocPageList: |
| case ax::mojom::Role::kDocPart: |
| case ax::mojom::Role::kDocPreface: |
| case ax::mojom::Role::kDocPrologue: |
| case ax::mojom::Role::kDocPullquote: |
| case ax::mojom::Role::kDocQna: |
| case ax::mojom::Role::kDocSubtitle: |
| case ax::mojom::Role::kDocTip: |
| case ax::mojom::Role::kDocToc: |
| return L"group"; |
| |
| case ax::mojom::Role::kDocument: |
| case ax::mojom::Role::kRootWebArea: |
| case ax::mojom::Role::kWebArea: |
| return L"document"; |
| |
| case ax::mojom::Role::kEmbeddedObject: |
| if (GetDelegate()->GetChildCount()) { |
| return L"group"; |
| } else { |
| return L"document"; |
| } |
| |
| case ax::mojom::Role::kFeed: |
| return L"group"; |
| |
| case ax::mojom::Role::kFigcaption: |
| return L"group"; |
| |
| case ax::mojom::Role::kFigure: |
| return L"group"; |
| |
| case ax::mojom::Role::kForm: |
| return L"form"; |
| |
| case ax::mojom::Role::kGenericContainer: |
| return L"group"; |
| |
| case ax::mojom::Role::kGraphicsDocument: |
| return L"document"; |
| |
| case ax::mojom::Role::kGraphicsObject: |
| return L"region"; |
| |
| case ax::mojom::Role::kGraphicsSymbol: |
| return L"img"; |
| |
| case ax::mojom::Role::kGrid: |
| return L"grid"; |
| |
| case ax::mojom::Role::kGroup: |
| return L"group"; |
| |
| case ax::mojom::Role::kHeading: |
| return L"heading"; |
| |
| case ax::mojom::Role::kIframe: |
| return L"document"; |
| |
| case ax::mojom::Role::kIframePresentational: |
| return L"group"; |
| |
| case ax::mojom::Role::kImage: |
| return L"img"; |
| |
| case ax::mojom::Role::kImageMap: |
| return L"document"; |
| |
| case ax::mojom::Role::kInputTime: |
| return L"group"; |
| |
| case ax::mojom::Role::kInlineTextBox: |
| return L"textbox"; |
| |
| case ax::mojom::Role::kKeyboard: |
| return L"group"; |
| |
| case ax::mojom::Role::kLabelText: |
| case ax::mojom::Role::kLegend: |
| return L"description"; |
| |
| case ax::mojom::Role::kLayoutTable: |
| return L"grid"; |
| |
| case ax::mojom::Role::kLayoutTableCell: |
| return L"gridcell"; |
| |
| case ax::mojom::Role::kLayoutTableColumn: |
| return L"region"; |
| |
| case ax::mojom::Role::kLayoutTableRow: |
| return L"row"; |
| |
| case ax::mojom::Role::kLink: |
| return L"link"; |
| |
| case ax::mojom::Role::kList: |
| return L"list"; |
| |
| case ax::mojom::Role::kListBox: |
| return L"listbox"; |
| |
| case ax::mojom::Role::kListBoxOption: |
| return L"option"; |
| |
| case ax::mojom::Role::kListGrid: |
| return L"listview"; |
| |
| case ax::mojom::Role::kListItem: |
| return L"listitem"; |
| |
| case ax::mojom::Role::kLog: |
| return L"log"; |
| |
| case ax::mojom::Role::kMain: |
| return L"main"; |
| |
| case ax::mojom::Role::kMark: |
| return L"description"; |
| |
| case ax::mojom::Role::kMarquee: |
| return L"marquee"; |
| |
| case ax::mojom::Role::kMath: |
| return L"group"; |
| |
| case ax::mojom::Role::kMenu: |
| case ax::mojom::Role::kMenuButton: |
| return L"menu"; |
| |
| case ax::mojom::Role::kMenuBar: |
| return L"menubar"; |
| |
| case ax::mojom::Role::kMenuItem: |
| return L"menuitem"; |
| |
| case ax::mojom::Role::kMenuItemCheckBox: |
| return L"menuitemcheckbox"; |
| |
| case ax::mojom::Role::kMenuItemRadio: |
| return L"menuitemradio"; |
| |
| case ax::mojom::Role::kMenuListPopup: |
| if (IsAncestorComboBox()) |
| return L"list"; |
| return L"menu"; |
| |
| case ax::mojom::Role::kMenuListOption: |
| if (IsAncestorComboBox()) |
| return L"listitem"; |
| return L"menuitem"; |
| |
| case ax::mojom::Role::kMeter: |
| return L"progressbar"; |
| |
| case ax::mojom::Role::kNavigation: |
| return L"navigation"; |
| |
| case ax::mojom::Role::kNote: |
| return L"note"; |
| |
| case ax::mojom::Role::kParagraph: |
| return L"group"; |
| |
| case ax::mojom::Role::kPopUpButton: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "select") |
| return L"combobox"; |
| return L"menu"; |
| } |
| |
| case ax::mojom::Role::kPre: |
| return L"region"; |
| |
| case ax::mojom::Role::kProgressIndicator: |
| return L"progressbar"; |
| |
| case ax::mojom::Role::kRadioButton: |
| return L"radio"; |
| |
| case ax::mojom::Role::kRadioGroup: |
| return L"radiogroup"; |
| |
| case ax::mojom::Role::kRegion: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "section" && |
| GetData() |
| .GetString16Attribute(ax::mojom::StringAttribute::kName) |
| .empty()) { |
| // Do not use ARIA mapping for nameless <section>. |
| return L"group"; |
| } |
| // Use ARIA mapping. |
| return L"region"; |
| } |
| |
| case ax::mojom::Role::kRow: { |
| // Role changes depending on whether row is inside a treegrid |
| // https://www.w3.org/TR/core-aam-1.1/#role-map-row |
| return IsInTreeGrid() ? L"treeitem" : L"row"; |
| } |
| |
| case ax::mojom::Role::kRowHeader: |
| return L"rowheader"; |
| |
| case ax::mojom::Role::kRuby: |
| return L"region"; |
| |
| case ax::mojom::Role::kScrollBar: |
| return L"scrollbar"; |
| |
| case ax::mojom::Role::kScrollView: |
| return L"region"; |
| |
| case ax::mojom::Role::kSearch: |
| return L"search"; |
| |
| case ax::mojom::Role::kSlider: |
| return L"slider"; |
| |
| case ax::mojom::Role::kSliderThumb: |
| return L"slider"; |
| |
| case ax::mojom::Role::kSpinButton: |
| return L"spinbutton"; |
| |
| case ax::mojom::Role::kSwitch: |
| return L"checkbox"; |
| |
| case ax::mojom::Role::kAnnotation: |
| case ax::mojom::Role::kListMarker: |
| case ax::mojom::Role::kStaticText: |
| return L"description"; |
| |
| case ax::mojom::Role::kStatus: |
| return L"status"; |
| |
| case ax::mojom::Role::kSplitter: |
| return L"separator"; |
| |
| case ax::mojom::Role::kSvgRoot: |
| return L"img"; |
| |
| case ax::mojom::Role::kTab: |
| return L"tab"; |
| |
| case ax::mojom::Role::kTable: |
| return L"grid"; |
| |
| case ax::mojom::Role::kTableHeaderContainer: |
| return L"group"; |
| |
| case ax::mojom::Role::kTabList: |
| return L"tablist"; |
| |
| case ax::mojom::Role::kTabPanel: |
| return L"tabpanel"; |
| |
| case ax::mojom::Role::kTerm: |
| return L"listitem"; |
| |
| case ax::mojom::Role::kTitleBar: |
| return L"document"; |
| |
| case ax::mojom::Role::kToggleButton: |
| return L"button"; |
| |
| case ax::mojom::Role::kTextField: |
| case ax::mojom::Role::kSearchBox: |
| return L"textbox"; |
| |
| case ax::mojom::Role::kTextFieldWithComboBox: |
| return L"combobox"; |
| |
| case ax::mojom::Role::kAbbr: |
| case ax::mojom::Role::kTime: |
| return L"description"; |
| |
| case ax::mojom::Role::kTimer: |
| return L"timer"; |
| |
| case ax::mojom::Role::kToolbar: |
| return L"toolbar"; |
| |
| case ax::mojom::Role::kTooltip: |
| return L"tooltip"; |
| |
| case ax::mojom::Role::kTree: |
| return L"tree"; |
| |
| case ax::mojom::Role::kTreeGrid: |
| return L"treegrid"; |
| |
| case ax::mojom::Role::kTreeItem: |
| return L"treeitem"; |
| |
| case ax::mojom::Role::kLineBreak: |
| return L"separator"; |
| |
| case ax::mojom::Role::kVideo: |
| return L"group"; |
| |
| case ax::mojom::Role::kWebView: |
| return L"document"; |
| |
| case ax::mojom::Role::kPane: |
| case ax::mojom::Role::kWindow: |
| case ax::mojom::Role::kIgnored: |
| case ax::mojom::Role::kNone: |
| case ax::mojom::Role::kPresentational: |
| case ax::mojom::Role::kUnknown: |
| return L"region"; |
| } |
| |
| NOTREACHED(); |
| return L"document"; |
| } |
| |
| base::string16 AXPlatformNodeWin::ComputeUIAProperties() { |
| std::vector<base::string16> properties; |
| const AXNodeData& data = GetData(); |
| |
| BoolAttributeToUIAAriaProperty( |
| properties, ax::mojom::BoolAttribute::kLiveAtomic, "atomic"); |
| BoolAttributeToUIAAriaProperty(properties, ax::mojom::BoolAttribute::kBusy, |
| "busy"); |
| |
| switch (data.GetCheckedState()) { |
| case ax::mojom::CheckedState::kNone: |
| break; |
| case ax::mojom::CheckedState::kFalse: |
| if (data.role == ax::mojom::Role::kToggleButton) { |
| properties.emplace_back(L"pressed=false"); |
| } else if (data.role == ax::mojom::Role::kSwitch) { |
| // ARIA switches are exposed to Windows accessibility as toggle |
| // buttons. For maximum compatibility with ATs, we expose both the |
| // pressed and checked states. |
| properties.emplace_back(L"pressed=false"); |
| properties.emplace_back(L"checked=false"); |
| } else { |
| properties.emplace_back(L"checked=false"); |
| } |
| break; |
| case ax::mojom::CheckedState::kTrue: |
| if (data.role == ax::mojom::Role::kToggleButton) { |
| properties.emplace_back(L"pressed=true"); |
| } else if (data.role == ax::mojom::Role::kSwitch) { |
| // ARIA switches are exposed to Windows accessibility as toggle |
| // buttons. For maximum compatibility with ATs, we expose both the |
| // pressed and checked states. |
| properties.emplace_back(L"pressed=true"); |
| properties.emplace_back(L"checked=true"); |
| } else { |
| properties.emplace_back(L"checked=true"); |
| } |
| break; |
| case ax::mojom::CheckedState::kMixed: |
| if (data.role == ax::mojom::Role::kToggleButton) { |
| properties.emplace_back(L"pressed=mixed"); |
| } else if (data.role == ax::mojom::Role::kSwitch) { |
| // This is disallowed both by the ARIA standard and by Blink. |
| NOTREACHED(); |
| } else { |
| properties.emplace_back(L"checked=mixed"); |
| } |
| break; |
| } |
| |
| const auto restriction = static_cast<ax::mojom::Restriction>( |
| GetIntAttribute(ax::mojom::IntAttribute::kRestriction)); |
| switch (restriction) { |
| case ax::mojom::Restriction::kDisabled: |
| properties.push_back(L"disabled=true"); |
| break; |
| case ax::mojom::Restriction::kReadOnly: |
| properties.push_back(L"readonly=true"); |
| break; |
| default: |
| // The readonly property is complex on windows. We set "readonly=true" |
| // on *some* document structure roles such as paragraph, heading or list |
| // even if the node data isn't marked as read only, as long as the |
| // node is not editable. |
| if (!data.HasState(ax::mojom::State::kRichlyEditable) && |
| ShouldHaveReadonlyStateByDefault(data.role)) |
| properties.push_back(L"readonly=true"); |
| break; |
| } |
| |
| // aria-dropeffect is deprecated in WAI-ARIA 1.1. |
| if (data.HasIntAttribute(ax::mojom::IntAttribute::kDropeffect)) { |
| properties.push_back(L"dropeffect=" + |
| base::UTF8ToUTF16(data.DropeffectBitfieldToString())); |
| } |
| StateToUIAAriaProperty(properties, ax::mojom::State::kExpanded, "expanded"); |
| BoolAttributeToUIAAriaProperty(properties, ax::mojom::BoolAttribute::kGrabbed, |
| "grabbed"); |
| |
| // TODO(crbug.com/865101) Use |
| // data.HasState(ax::mojom::State::kAutofillAvailable) instead of |
| // IsFocusedInputWithSuggestions() |
| switch (static_cast<ax::mojom::HasPopup>( |
| data.GetIntAttribute(ax::mojom::IntAttribute::kHasPopup))) { |
| case ax::mojom::HasPopup::kFalse: |
| break; |
| case ax::mojom::HasPopup::kTrue: |
| properties.push_back(L"haspopup=true"); |
| break; |
| case ax::mojom::HasPopup::kMenu: |
| properties.push_back(L"haspopup=menu"); |
| break; |
| case ax::mojom::HasPopup::kListbox: |
| properties.push_back(L"haspopup=listbox"); |
| break; |
| case ax::mojom::HasPopup::kTree: |
| properties.push_back(L"haspopup=tree"); |
| break; |
| case ax::mojom::HasPopup::kGrid: |
| properties.push_back(L"haspopup=grid"); |
| break; |
| case ax::mojom::HasPopup::kDialog: |
| properties.push_back(L"haspopup=dialog"); |
| break; |
| } |
| |
| if (IsInvisibleOrIgnored()) |
| properties.push_back(L"hidden=true"); |
| |
| if (HasIntAttribute(ax::mojom::IntAttribute::kInvalidState) && |
| GetIntAttribute(ax::mojom::IntAttribute::kInvalidState) != |
| static_cast<int32_t>(ax::mojom::InvalidState::kFalse)) { |
| properties.push_back(L"invalid=true"); |
| } |
| |
| IntAttributeToUIAAriaProperty( |
| properties, ax::mojom::IntAttribute::kHierarchicalLevel, "level"); |
| StringAttributeToUIAAriaProperty( |
| properties, ax::mojom::StringAttribute::kLiveStatus, "live"); |
| StateToUIAAriaProperty(properties, ax::mojom::State::kMultiline, "multiline"); |
| StateToUIAAriaProperty(properties, ax::mojom::State::kMultiselectable, |
| "multiselectable"); |
| IntAttributeToUIAAriaProperty(properties, ax::mojom::IntAttribute::kPosInSet, |
| "posinset"); |
| StringAttributeToUIAAriaProperty( |
| properties, ax::mojom::StringAttribute::kLiveRelevant, "relevant"); |
| StateToUIAAriaProperty(properties, ax::mojom::State::kRequired, "required"); |
| BoolAttributeToUIAAriaProperty( |
| properties, ax::mojom::BoolAttribute::kSelected, "selected"); |
| IntAttributeToUIAAriaProperty(properties, ax::mojom::IntAttribute::kSetSize, |
| "setsize"); |
| |
| int32_t sort_direction; |
| if (IsTableHeader(data.role) && |
| GetIntAttribute(ax::mojom::IntAttribute::kSortDirection, |
| &sort_direction)) { |
| switch (static_cast<ax::mojom::SortDirection>(sort_direction)) { |
| case ax::mojom::SortDirection::kNone: |
| break; |
| case ax::mojom::SortDirection::kUnsorted: |
| properties.push_back(L"sort=none"); |
| break; |
| case ax::mojom::SortDirection::kAscending: |
| properties.push_back(L"sort=ascending"); |
| break; |
| case ax::mojom::SortDirection::kDescending: |
| properties.push_back(L"sort=descending"); |
| break; |
| case ax::mojom::SortDirection::kOther: |
| properties.push_back(L"sort=other"); |
| break; |
| } |
| } |
| |
| if (IsRangeValueSupported(data)) { |
| FloatAttributeToUIAAriaProperty( |
| properties, ax::mojom::FloatAttribute::kMaxValueForRange, "valuemax"); |
| FloatAttributeToUIAAriaProperty( |
| properties, ax::mojom::FloatAttribute::kMinValueForRange, "valuemin"); |
| StringAttributeToUIAAriaProperty( |
| properties, ax::mojom::StringAttribute::kValue, "valuetext"); |
| |
| base::string16 value_now = GetRangeValueText(); |
| SanitizeStringAttributeForUIAAriaProperty(value_now, &value_now); |
| if (!value_now.empty()) |
| properties.push_back(L"valuenow=" + value_now); |
| } |
| |
| base::string16 result = base::JoinString(properties, L";"); |
| return result; |
| } |
| |
| LONG AXPlatformNodeWin::ComputeUIAControlType() { // NOLINT(runtime/int) |
| // 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()) |
| return UIA_GroupControlTypeId; |
| |
| switch (GetData().role) { |
| case ax::mojom::Role::kAlert: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kAlertDialog: |
| // Our MSAA implementation suggests the use of |
| // |UIA_TextControlTypeId|, not |UIA_PaneControlTypeId| because some |
| // Windows screen readers are not compatible with |
| // |ax::mojom::Role::kAlertDialog| yet. |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kAnchor: |
| return UIA_HyperlinkControlTypeId; |
| |
| case ax::mojom::Role::kApplication: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kArticle: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kAudio: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kBanner: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kBlockquote: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kButton: |
| return UIA_ButtonControlTypeId; |
| |
| case ax::mojom::Role::kCanvas: |
| return UIA_ImageControlTypeId; |
| |
| case ax::mojom::Role::kCaption: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kCaret: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kCell: |
| return UIA_DataItemControlTypeId; |
| |
| case ax::mojom::Role::kCheckBox: |
| return UIA_CheckBoxControlTypeId; |
| |
| case ax::mojom::Role::kClient: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kColorWell: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kColumn: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kColumnHeader: |
| return UIA_DataItemControlTypeId; |
| |
| case ax::mojom::Role::kComboBoxGrouping: |
| case ax::mojom::Role::kComboBoxMenuButton: |
| return UIA_ComboBoxControlTypeId; |
| |
| case ax::mojom::Role::kComplementary: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kContentDeletion: |
| case ax::mojom::Role::kContentInsertion: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kContentInfo: |
| case ax::mojom::Role::kFooter: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kDate: |
| case ax::mojom::Role::kDateTime: |
| return UIA_ListControlTypeId; |
| |
| case ax::mojom::Role::kDefinition: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kDescriptionListDetail: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kDescriptionList: |
| return UIA_ListControlTypeId; |
| |
| case ax::mojom::Role::kDescriptionListTerm: |
| return UIA_ListItemControlTypeId; |
| |
| case ax::mojom::Role::kDesktop: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kDetails: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kDialog: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kDisclosureTriangle: |
| return UIA_ButtonControlTypeId; |
| |
| case ax::mojom::Role::kDirectory: |
| return UIA_ListControlTypeId; |
| |
| case ax::mojom::Role::kDocCover: |
| return UIA_ImageControlTypeId; |
| |
| case ax::mojom::Role::kDocBackLink: |
| case ax::mojom::Role::kDocBiblioRef: |
| case ax::mojom::Role::kDocGlossRef: |
| case ax::mojom::Role::kDocNoteRef: |
| return UIA_HyperlinkControlTypeId; |
| |
| case ax::mojom::Role::kDocBiblioEntry: |
| case ax::mojom::Role::kDocEndnote: |
| case ax::mojom::Role::kDocFootnote: |
| return UIA_ListItemControlTypeId; |
| |
| case ax::mojom::Role::kDocPageBreak: |
| return UIA_SeparatorControlTypeId; |
| |
| case ax::mojom::Role::kDocAbstract: |
| case ax::mojom::Role::kDocAcknowledgments: |
| case ax::mojom::Role::kDocAfterword: |
| case ax::mojom::Role::kDocAppendix: |
| case ax::mojom::Role::kDocBibliography: |
| case ax::mojom::Role::kDocChapter: |
| case ax::mojom::Role::kDocColophon: |
| case ax::mojom::Role::kDocConclusion: |
| case ax::mojom::Role::kDocCredit: |
| case ax::mojom::Role::kDocCredits: |
| case ax::mojom::Role::kDocDedication: |
| case ax::mojom::Role::kDocEndnotes: |
| case ax::mojom::Role::kDocEpigraph: |
| case ax::mojom::Role::kDocEpilogue: |
| case ax::mojom::Role::kDocErrata: |
| case ax::mojom::Role::kDocExample: |
| case ax::mojom::Role::kDocForeword: |
| case ax::mojom::Role::kDocGlossary: |
| case ax::mojom::Role::kDocIndex: |
| case ax::mojom::Role::kDocIntroduction: |
| case ax::mojom::Role::kDocNotice: |
| case ax::mojom::Role::kDocPageList: |
| case ax::mojom::Role::kDocPart: |
| case ax::mojom::Role::kDocPreface: |
| case ax::mojom::Role::kDocPrologue: |
| case ax::mojom::Role::kDocPullquote: |
| case ax::mojom::Role::kDocQna: |
| case ax::mojom::Role::kDocSubtitle: |
| case ax::mojom::Role::kDocTip: |
| case ax::mojom::Role::kDocToc: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kDocument: |
| case ax::mojom::Role::kRootWebArea: |
| case ax::mojom::Role::kWebArea: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kEmbeddedObject: |
| if (GetDelegate()->GetChildCount()) { |
| return UIA_GroupControlTypeId; |
| } else { |
| return UIA_DocumentControlTypeId; |
| } |
| |
| case ax::mojom::Role::kFeed: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kFigcaption: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kFigure: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kForm: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kGenericContainer: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kGraphicsDocument: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kGraphicsObject: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kGraphicsSymbol: |
| return UIA_ImageControlTypeId; |
| |
| case ax::mojom::Role::kGrid: |
| return UIA_DataGridControlTypeId; |
| |
| case ax::mojom::Role::kGroup: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kHeading: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kIframe: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kIframePresentational: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kImage: |
| return UIA_ImageControlTypeId; |
| |
| case ax::mojom::Role::kImageMap: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kInputTime: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kInlineTextBox: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kLabelText: |
| case ax::mojom::Role::kLegend: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kLayoutTable: |
| return UIA_TableControlTypeId; |
| |
| case ax::mojom::Role::kLayoutTableCell: |
| return UIA_DataItemControlTypeId; |
| |
| case ax::mojom::Role::kLayoutTableColumn: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kLayoutTableRow: |
| return UIA_DataItemControlTypeId; |
| |
| case ax::mojom::Role::kLink: |
| return UIA_HyperlinkControlTypeId; |
| |
| case ax::mojom::Role::kList: |
| return UIA_ListControlTypeId; |
| |
| case ax::mojom::Role::kListBox: |
| return UIA_ListControlTypeId; |
| |
| case ax::mojom::Role::kListBoxOption: |
| return UIA_ListItemControlTypeId; |
| |
| case ax::mojom::Role::kListGrid: |
| return UIA_DataGridControlTypeId; |
| |
| case ax::mojom::Role::kListItem: |
| return UIA_ListItemControlTypeId; |
| |
| case ax::mojom::Role::kLog: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kMain: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kMark: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kMarquee: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kMath: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kMenu: |
| case ax::mojom::Role::kMenuButton: |
| return UIA_MenuControlTypeId; |
| |
| case ax::mojom::Role::kMenuBar: |
| return UIA_MenuBarControlTypeId; |
| |
| case ax::mojom::Role::kMenuItem: |
| return UIA_MenuItemControlTypeId; |
| |
| case ax::mojom::Role::kMenuItemCheckBox: |
| return UIA_CheckBoxControlTypeId; |
| |
| case ax::mojom::Role::kMenuItemRadio: |
| return UIA_RadioButtonControlTypeId; |
| |
| case ax::mojom::Role::kMenuListPopup: |
| if (IsAncestorComboBox()) |
| return UIA_ListControlTypeId; |
| return UIA_MenuControlTypeId; |
| |
| case ax::mojom::Role::kMenuListOption: |
| if (IsAncestorComboBox()) |
| return UIA_ListItemControlTypeId; |
| return UIA_MenuItemControlTypeId; |
| |
| case ax::mojom::Role::kMeter: |
| return UIA_ProgressBarControlTypeId; |
| |
| case ax::mojom::Role::kNavigation: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kNote: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kParagraph: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kPopUpButton: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "select") |
| return UIA_ComboBoxControlTypeId; |
| return UIA_MenuControlTypeId; |
| } |
| |
| case ax::mojom::Role::kPre: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kProgressIndicator: |
| return UIA_ProgressBarControlTypeId; |
| |
| case ax::mojom::Role::kRadioButton: |
| return UIA_RadioButtonControlTypeId; |
| |
| case ax::mojom::Role::kRadioGroup: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kRegion: { |
| std::string html_tag = |
| GetData().GetStringAttribute(ax::mojom::StringAttribute::kHtmlTag); |
| if (html_tag == "section" && |
| GetData() |
| .GetString16Attribute(ax::mojom::StringAttribute::kName) |
| .empty()) { |
| // Do not use ARIA mapping for nameless <section>. |
| return UIA_GroupControlTypeId; |
| } |
| // Use ARIA mapping. |
| return UIA_PaneControlTypeId; |
| } |
| |
| case ax::mojom::Role::kRow: { |
| // Role changes depending on whether row is inside a treegrid |
| // https://www.w3.org/TR/core-aam-1.1/#role-map-row |
| return IsInTreeGrid() ? UIA_TreeItemControlTypeId |
| : UIA_DataItemControlTypeId; |
| } |
| |
| case ax::mojom::Role::kRowHeader: |
| return UIA_DataItemControlTypeId; |
| |
| case ax::mojom::Role::kRuby: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kScrollBar: |
| return UIA_ScrollBarControlTypeId; |
| |
| case ax::mojom::Role::kScrollView: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kSearch: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kSlider: |
| return UIA_SliderControlTypeId; |
| |
| case ax::mojom::Role::kSliderThumb: |
| return UIA_SliderControlTypeId; |
| |
| case ax::mojom::Role::kSpinButton: |
| return UIA_SpinnerControlTypeId; |
| |
| case ax::mojom::Role::kSwitch: |
| return UIA_CheckBoxControlTypeId; |
| |
| case ax::mojom::Role::kAnnotation: |
| case ax::mojom::Role::kListMarker: |
| case ax::mojom::Role::kStaticText: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kStatus: |
| return UIA_StatusBarControlTypeId; |
| |
| case ax::mojom::Role::kSplitter: |
| return UIA_SeparatorControlTypeId; |
| |
| case ax::mojom::Role::kSvgRoot: |
| return UIA_ImageControlTypeId; |
| |
| case ax::mojom::Role::kTab: |
| return UIA_TabItemControlTypeId; |
| |
| case ax::mojom::Role::kTable: |
| return UIA_TableControlTypeId; |
| |
| case ax::mojom::Role::kTableHeaderContainer: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kTabList: |
| return UIA_TabControlTypeId; |
| |
| case ax::mojom::Role::kTabPanel: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kTerm: |
| return UIA_ListItemControlTypeId; |
| |
| case ax::mojom::Role::kTitleBar: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kToggleButton: |
| return UIA_ButtonControlTypeId; |
| |
| case ax::mojom::Role::kTextField: |
| case ax::mojom::Role::kSearchBox: |
| return UIA_EditControlTypeId; |
| |
| case ax::mojom::Role::kTextFieldWithComboBox: |
| return UIA_ComboBoxControlTypeId; |
| |
| case ax::mojom::Role::kAbbr: |
| case ax::mojom::Role::kTime: |
| return UIA_TextControlTypeId; |
| |
| case ax::mojom::Role::kTimer: |
| return UIA_PaneControlTypeId; |
| |
| case ax::mojom::Role::kToolbar: |
| return UIA_ToolBarControlTypeId; |
| |
| case ax::mojom::Role::kTooltip: |
| return UIA_ToolTipControlTypeId; |
| |
| case ax::mojom::Role::kTree: |
| return UIA_TreeControlTypeId; |
| |
| case ax::mojom::Role::kTreeGrid: |
| return UIA_DataGridControlTypeId; |
| |
| case ax::mojom::Role::kTreeItem: |
| return UIA_TreeItemControlTypeId; |
| |
| case ax::mojom::Role::kLineBreak: |
| return UIA_SeparatorControlTypeId; |
| |
| case ax::mojom::Role::kVideo: |
| return UIA_GroupControlTypeId; |
| |
| case ax::mojom::Role::kWebView: |
| return UIA_DocumentControlTypeId; |
| |
| case ax::mojom::Role::kPane: |
| case ax::mojom::Role::kWindow: |
| case ax::mojom::Role::kIgnored: |
| case ax::mojom::Role::kKeyboard: |
| case ax::mojom::Role::kNone: |
| case ax::mojom::Role::kPresentational: |
| case ax::mojom::Role::kUnknown: |
| return UIA_PaneControlTypeId; |
| } |
| |
| NOTREACHED(); |
| return UIA_DocumentControlTypeId; |
| } |
| |
| bool AXPlatformNodeWin::IsUIAControl() const { |
| // UIA provides multiple "views": raw, content and control. We only want to |
| // populate the content and control views with items that make sense to |
| // traverse over. |
| if (GetDelegate()->IsWebContent()) { |
| if (IsTextOnlyObject()) { |
| // A text leaf can be a UIAControl, but text inside of a heading, link, |
| // button, etc. where the role allows the name to be generated from the |
| // content is not. We want to avoid reading out a button, moving to the |
| // next item, and then reading out the button's text child, causing the |
| // text to be effectively repeated. |
| auto* parent = FromNativeViewAccessible(GetDelegate()->GetParent()); |
| while (parent) { |
| const ui::AXNodeData& data = parent->GetData(); |
| switch (data.role) { |
| case ax::mojom::Role::kButton: |
| case ax::mojom::Role::kCell: |
| case ax::mojom::Role::kCheckBox: |
| case ax::mojom::Role::kColumnHeader: |
| case ax::mojom::Role::kGroup: |
| case ax::mojom::Role::kHeading: |
| case ax::mojom::Role::kLineBreak: |
| case ax::mojom::Role::kLink: |
| case ax::mojom::Role::kListBoxOption: |
| case ax::mojom::Role::kListItem: |
| case ax::mojom::Role::kMenuItem: |
| case ax::mojom::Role::kMenuItemCheckBox: |
| case ax::mojom::Role::kMenuItemRadio: |
| case ax::mojom::Role::kMenuListOption: |
| case ax::mojom::Role::kRadioButton: |
| case ax::mojom::Role::kRow: |
| case ax::mojom::Role::kRowHeader: |
| case ax::mojom::Role::kStaticText: |
| case ax::mojom::Role::kSwitch: |
| case ax::mojom::Role::kTab: |
| case ax::mojom::Role::kTooltip: |
| case ax::mojom::Role::kTreeItem: |
| return false; |
| default: |
| break; |
| } |
| parent = FromNativeViewAccessible(parent->GetParent()); |
| } |
| } |
| return true; |
| } |
| // non web-content case |
| const ui::AXNodeData& data = GetData(); |
| return !(ui::ShouldHaveReadonlyStateByDefault(data.role) || |
| data.GetRestriction() == ax::mojom::Restriction::kReadOnly || |
| data.HasState(ax::mojom::State::kInvisible) || |
| data.role == ax::mojom::Role::kIgnored); |
| } |
| |
| base::Optional<LONG> AXPlatformNodeWin::ComputeUIALandmarkType() const { |
| const AXNodeData& data = GetData(); |
| switch (data.role) { |
| case ax::mojom::Role::kBanner: |
| case ax::mojom::Role::kComplementary: |
| case ax::mojom::Role::kContentInfo: |
| case ax::mojom::Role::kFooter: |
| return UIA_CustomLandmarkTypeId; |
| |
| case ax::mojom::Role::kForm: |
| return UIA_FormLandmarkTypeId; |
| |
| case ax::mojom::Role::kMain: |
| return UIA_MainLandmarkTypeId; |
| |
| case ax::mojom::Role::kNavigation: |
| return UIA_NavigationLandmarkTypeId; |
| |
| case ax::mojom::Role::kSearch: |
| return UIA_SearchLandmarkTypeId; |
| |
| case ax::mojom::Role::kRegion: |
| if (data.HasStringAttribute(ax::mojom::StringAttribute::kName)) |
| return UIA_CustomLandmarkTypeId; |
| FALLTHROUGH; |
| |
| default: |
| return {}; |
| } |
| } |
| |
| base::string16 AXPlatformNodeWin::GetValue() const { |
| base::string16 value = AXPlatformNodeBase::GetValue(); |
| |
| // 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. |
| // TODO(dougt): Look into ensuring that on click handlers correctly provide |
| // a value here. |
| if (value.empty() && (MSAAState() & STATE_SYSTEM_LINKED)) |
| value = GetString16Attribute(ax::mojom::StringAttribute::kUrl); |
| |
| return value; |
| } |
| |
| bool AXPlatformNodeWin::ShouldNodeHaveFocusableState( |
| const AXNodeData& data) const { |
| switch (data.role) { |
| case ax::mojom::Role::kDocument: |
| case ax::mojom::Role::kGraphicsDocument: |
| case ax::mojom::Role::kRootWebArea: |
| case ax::mojom::Role::kWebArea: |
| return true; |
| |
| case ax::mojom::Role::kIframe: |
| return false; |
| |
| case ax::mojom::Role::kListBoxOption: |
| case ax::mojom::Role::kMenuListOption: |
| if (data.HasBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| return true; |
| break; |
| |
| default: |
| break; |
| } |
| |
| return data.HasState(ax::mojom::State::kFocusable); |
| } |
| |
| int AXPlatformNodeWin::MSAAState() const { |
| const AXNodeData& data = GetData(); |
| int msaa_state = 0; |
| |
| // Map the ax::mojom::State to MSAA state. Note that some of the states are |
| // not currently handled. |
| |
| if (data.GetBoolAttribute(ax::mojom::BoolAttribute::kBusy)) |
| msaa_state |= STATE_SYSTEM_BUSY; |
| |
| if (data.HasState(ax::mojom::State::kCollapsed)) |
| msaa_state |= STATE_SYSTEM_COLLAPSED; |
| |
| if (data.HasState(ax::mojom::State::kDefault)) |
| msaa_state |= STATE_SYSTEM_DEFAULT; |
| |
| // TODO(dougt) unhandled ux::ax::mojom::State::kEditable |
| |
| if (data.HasState(ax::mojom::State::kExpanded)) |
| msaa_state |= STATE_SYSTEM_EXPANDED; |
| |
| if (ShouldNodeHaveFocusableState(data)) |
| msaa_state |= STATE_SYSTEM_FOCUSABLE; |
| |
| // TODO(crbug.com/865101) Use |
| // data.HasState(ax::mojom::State::kAutofillAvailable) instead of |
| // IsFocusedInputWithSuggestions() and rmove the below comment: Note: |
| // suggestions are special-cased here because there is no way for the |
| // browser to know when a suggestion popup is available. |
| if (data.HasIntAttribute(ax::mojom::IntAttribute::kHasPopup) || |
| IsFocusedInputWithSuggestions()) |
| msaa_state |= STATE_SYSTEM_HASPOPUP; |
| |
| // TODO(dougt) unhandled ux::ax::mojom::State::kHorizontal |
| |
| if (data.HasState(ax::mojom::State::kHovered)) { |
| // 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. |
| if (GetDelegate()->ShouldIgnoreHoveredStateForTesting()) |
| msaa_state |= STATE_SYSTEM_HOTTRACKED; |
| } |
| |
| // If the role is IGNORED, we want these elements to be invisible so that |
| // these nodes are hidden from the screen reader. |
| if (IsInvisibleOrIgnored()) |
| msaa_state |= STATE_SYSTEM_INVISIBLE; |
| |
| if (data.HasState(ax::mojom::State::kLinked)) |
| msaa_state |= STATE_SYSTEM_LINKED; |
| |
| // TODO(dougt) unhandled ux::ax::mojom::State::kMultiline |
| |
| if (data.HasState(ax::mojom::State::kMultiselectable)) { |
| msaa_state |= STATE_SYSTEM_EXTSELECTABLE; |
| msaa_state |= STATE_SYSTEM_MULTISELECTABLE; |
| } |
| |
| if (GetDelegate()->IsOffscreen()) |
| msaa_state |= STATE_SYSTEM_OFFSCREEN; |
| |
| if (data.HasState(ax::mojom::State::kProtected)) |
| msaa_state |= STATE_SYSTEM_PROTECTED; |
| |
| // TODO(dougt) unhandled ux::ax::mojom::State::kRequired |
| // TODO(dougt) unhandled ux::ax::mojom::State::kRichlyEditable |
| |
| if (data.HasBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| msaa_state |= STATE_SYSTEM_SELECTABLE; |
| |
| if (data.GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) |
| msaa_state |= STATE_SYSTEM_SELECTED; |
| |
| // TODO(dougt) unhandled VERTICAL |
| |
| if (data.HasState(ax::mojom::State::kVisited)) |
| msaa_state |= STATE_SYSTEM_TRAVERSED; |
| |
| // |
| // Checked state |
| // |
| |
| switch (data.GetCheckedState()) { |
| case ax::mojom::CheckedState::kNone: |
| case ax::mojom::CheckedState::kFalse: |
| break; |
| case ax::mojom::CheckedState::kTrue: |
| if (data.role == ax::mojom::Role::kToggleButton) { |
| msaa_state |= STATE_SYSTEM_PRESSED; |
| } else if (data.role == ax::mojom::Role::kSwitch) { |
| // ARIA switches are exposed to Windows accessibility as toggle |
| // buttons. For maximum compatibility with ATs, we expose both the |
| // pressed and checked states. |
| msaa_state |= STATE_SYSTEM_PRESSED | STATE_SYSTEM_CHECKED; |
| } else { |
| msaa_state |= STATE_SYSTEM_CHECKED; |
| } |
| break; |
| case ax::mojom::CheckedState::kMixed: |
| msaa_state |= STATE_SYSTEM_MIXED; |
| break; |
| } |
| |
| const auto restriction = static_cast<ax::mojom::Restriction>( |
| GetIntAttribute(ax::mojom::IntAttribute::kRestriction)); |
| switch (restriction) { |
| case ax::mojom::Restriction::kDisabled: |
| msaa_state |= STATE_SYSTEM_UNAVAILABLE; |
| break; |
| case ax::mojom::Restriction::kReadOnly: |
| msaa_state |= STATE_SYSTEM_READONLY; |
| break; |
| default: |
| // READONLY state is complex on windows. We set STATE_SYSTEM_READONLY |
| // on *some* document structure roles such as paragraph, heading or list |
| // even if the node data isn't marked as read only, as long as the |
| // node is not editable. |
| if (!data.HasState(ax::mojom::State::kRichlyEditable) && |
| ShouldHaveReadonlyStateByDefault(data.role)) |
| msaa_state |= STATE_SYSTEM_READONLY; |
| break; |
| } |
| |
| // |
| // Handle STATE_SYSTEM_FOCUSED |
| // |
| gfx::NativeViewAccessible focus = GetDelegate()->GetFocus(); |
| if (focus == const_cast<AXPlatformNodeWin*>(this)->GetNativeViewAccessible()) |
| msaa_state |= STATE_SYSTEM_FOCUSED; |
| |
| // In focused single selection UI menus and listboxes, mirror item selection |
| // to focus. This helps NVDA read the selected option as it changes. |
| if ((data.role == ax::mojom::Role::kListBoxOption || IsMenuItem(data.role)) && |
| data.GetBoolAttribute(ax::mojom::BoolAttribute::kSelected)) { |
| AXPlatformNodeBase* container = FromNativeViewAccessible(GetParent()); |
| if (container && container->GetParent() == focus) { |
| ui::AXNodeData container_data = container->GetData(); |
| if ((container_data.role == ax::mojom::Role::kListBox || |
| container_data.role == ax::mojom::Role::kMenu) && |
| !container_data.HasState(ax::mojom::State::kMultiselectable)) { |
| msaa_state |= STATE_SYSTEM_FOCUSED; |
| } |
| } |
| } |
| |
| // On Windows, the "focus" bit should be set on certain containers, like |
| // menu bars, when visible. |
| // |
| // TODO(dmazzoni): this should probably check if focus is actually inside |
| // the menu bar, but we don't currently track focus inside menu pop-ups, |
| // and Chrome only has one menu visible at a time so this works for now. |
| if (data.role == ax::mojom::Role::kMenuBar && |
| !(data.HasState(ax::mojom::State::kInvisible))) { |
| msaa_state |= STATE_SYSTEM_FOCUSED; |
| } |
| |
| // Handle STATE_SYSTEM_LINKED |
| if (GetData().role == ax::mojom::Role::kLink) |
| msaa_state |= STATE_SYSTEM_LINKED; |
| |
| // Special case for indeterminate progressbar. |
| if (GetData().role == ax::mojom::Role::kProgressIndicator && |
| !HasFloatAttribute(ax::mojom::FloatAttribute::kValueForRange)) |
| msaa_state |= STATE_SYSTEM_MIXED; |
| |
| return msaa_state; |
| } |
| |
| base::Optional<DWORD> AXPlatformNodeWin::MSAAEvent(ax::mojom::Event event) { |
| if (::switches::IsExperimentalAccessibilityPlatformUIAEnabled()) |
| return base::nullopt; |
| |
| switch (event) { |
| case ax::mojom::Event::kAlert: |
| return EVENT_SYSTEM_ALERT; |
| case ax::mojom::Event::kCheckedStateChanged: |
| case ax::mojom::Event::kExpandedChanged: |
| return EVENT_OBJECT_STATECHANGE; |
| case ax::mojom::Event::kFocus: |
| case ax::mojom::Event::kFocusContext: |
| return EVENT_OBJECT_FOCUS; |
| case ax::mojom::Event::kLiveRegionChanged: |
| return EVENT_OBJECT_LIVEREGIONCHANGED; |
| case ax::mojom::Event::kMenuStart: |
| return EVENT_SYSTEM_MENUSTART; |
| case ax::mojom::Event::kMenuEnd: |
| return EVENT_SYSTEM_MENUEND; |
| case ax::mojom::Event::kMenuPopupStart: |
| return EVENT_SYSTEM_MENUPOPUPSTART; |
| case ax::mojom::Event::kMenuPopupEnd: |
| return EVENT_SYSTEM_MENUPOPUPEND; |
| case ax::mojom::Event::kSelection: |
| return EVENT_OBJECT_SELECTION; |
| case ax::mojom::Event::kSelectionAdd: |
| return EVENT_OBJECT_SELECTIONADD; |
| case ax::mojom::Event::kSelectionRemove: |
| return EVENT_OBJECT_SELECTIONREMOVE; |
| case ax::mojom::Event::kTextChanged: |
| return EVENT_OBJECT_NAMECHANGE; |
| case ax::mojom::Event::kTextSelectionChanged: |
| return IA2_EVENT_TEXT_CARET_MOVED; |
| case ax::mojom::Event::kValueChanged: |
| return EVENT_OBJECT_VALUECHANGE; |
| default: |
| return base::nullopt; |
| } |
| } |
| |
| base::Optional<EVENTID> AXPlatformNodeWin::UIAEvent(ax::mojom::Event event) { |
| if (!::switches::IsExperimentalAccessibilityPlatformUIAEnabled()) |
| return base::nullopt; |
| |
| switch (event) { |
| case ax::mojom::Event::kAlert: |
| return UIA_SystemAlertEventId; |
| case ax::mojom::Event::kFocus: |
| case ax::mojom::Event::kFocusContext: |
| return UIA_AutomationFocusChangedEventId; |
| case ax::mojom::Event::kLiveRegionChanged: |
| return UIA_LiveRegionChangedEventId; |
| case ax::mojom::Event::kSelection: |
| return UIA_SelectionItem_ElementSelectedEventId; |
| case ax::mojom::Event::kSelectionAdd: |
| return UIA_SelectionItem_ElementAddedToSelectionEventId; |
| case ax::mojom::Event::kSelectionRemove: |
| return UIA_SelectionItem_ElementRemovedFromSelectionEventId; |
| default: |
| return base::nullopt; |
| } |
| } |
| |
| // static |
| BSTR AXPlatformNodeWin::GetValueAttributeAsBstr(AXPlatformNodeWin* target) { |
| // GetValueAttributeAsBstr() has two sets of special cases depending on the |
| // node's role. |
| // The first set apply without regard for the nodes |value| attribute. That is |
| // the nodes value attribute isn't consider for the first set of special |
| // cases. For example, if the node role is ax::mojom::Role::kColorWell, we do |
| // not care at all about the node's ax::mojom::StringAttribute::kValue |
| // attribute. The second set of special cases only apply if the value |
| // attribute for the node is empty. That is, if |
| // ax::mojom::StringAttribute::kValue is empty, we do something special. |
| base::string16 result; |
| |
| // |
| // Color Well special case (Use ax::mojom::IntAttribute::kColorValue) |
| // |
| if (target->GetData().role == ax::mojom::Role::kColorWell) { |
| // static cast because SkColor is a 4-byte unsigned int |
| unsigned int color = static_cast<unsigned int>( |
| target->GetIntAttribute(ax::mojom::IntAttribute::kColorValue)); |
| |
| unsigned int red = SkColorGetR(color); |
| unsigned int green = SkColorGetG(color); |
| unsigned int blue = SkColorGetB(color); |
| base::string16 value_text; |
| value_text = base::NumberToString16(red * 100 / 255) + L"% red " + |
| base::NumberToString16(green * 100 / 255) + L"% green " + |
| base::NumberToString16(blue * 100 / 255) + L"% blue"; |
| BSTR value = SysAllocString(value_text.c_str()); |
| DCHECK(value); |
| return value; |
| } |
| |
| // |
| // Document special case (Use the document's URL) |
| // |
| if (target->GetData().role == ax::mojom::Role::kRootWebArea || |
| target->GetData().role == ax::mojom::Role::kWebArea) { |
| result = base::UTF8ToUTF16(target->GetDelegate()->GetTreeData().url); |
| BSTR value = SysAllocString(result.c_str()); |
| DCHECK(value); |
| return value; |
| } |
| |
| // |
| // Links (Use ax::mojom::StringAttribute::kUrl) |
| // |
| if (target->GetData().role == ax::mojom::Role::kLink) { |
| result = target->GetString16Attribute(ax::mojom::StringAttribute::kUrl); |
| BSTR value = SysAllocString(result.c_str()); |
| DCHECK(value); |
| return value; |
| } |
| |
| // For range controls, e.g. sliders and spin buttons, |ax_attr_value| holds |
| // the aria-valuetext if present but not the inner text. The actual value, |
| // provided either via aria-valuenow or the actual control's value is held in |
| // |ax::mojom::FloatAttribute::kValueForRange|. |
| result = target->GetString16Attribute(ax::mojom::StringAttribute::kValue); |
| if (result.empty() && IsRangeValueSupported(target->GetData())) { |
| float fval; |
| if (target->GetFloatAttribute(ax::mojom::FloatAttribute::kValueForRange, |
| &fval)) { |
| result = base::NumberToString16(fval); |
| BSTR value = SysAllocString(result.c_str()); |
| DCHECK(value); |
| return value; |
| } |
| } |
| |
| if (result.empty() && target->IsRichTextField()) |
| result = target->GetInnerText(); |
| |
| BSTR value = SysAllocString(result.c_str()); |
| DCHECK(value); |
| return value; |
| } |
| |
| HRESULT AXPlatformNodeWin::GetStringAttributeAsBstr( |
| ax::mojom::StringAttribute attribute, |
| BSTR* value_bstr) const { |
| base::string16 str; |
| |
| if (!GetString16Attribute(attribute, &str)) |
| return S_FALSE; |
| |
| *value_bstr = SysAllocString(str.c_str()); |
| DCHECK(*value_bstr); |
| |
| return S_OK; |
| } |
| |
| void AXPlatformNodeWin::AddAlertTarget() { |
| g_alert_targets.Get().insert(this); |
| } |
| |
| void AXPlatformNodeWin::RemoveAlertTarget() { |
| if (g_alert_targets.Get().find(this) != g_alert_targets.Get().end()) |
| g_alert_targets.Get().erase(this); |
| } |
| |
| base::string16 AXPlatformNodeWin::TextForIAccessibleText() { |
| // Special case allows us to get text even in non-HTML case, e.g. browser |
| // UI. |
| if (IsPlainTextField()) |
| return GetString16Attribute(ax::mojom::StringAttribute::kValue); |
| return GetHypertext(); |
| } |
| |
| void AXPlatformNodeWin::HandleSpecialTextOffset(LONG* offset) { |
| if (*offset == IA2_TEXT_OFFSET_LENGTH) { |
| *offset = static_cast<LONG>(GetHypertext().length()); |
| } else if (*offset == IA2_TEXT_OFFSET_CARET) { |
| int selection_start, selection_end; |
| GetSelectionOffsets(&selection_start, &selection_end); |
| // TODO(nektar): Deprecate selection_start and selection_end in favor of |
| // sel_anchor_offset/sel_focus_offset. See https://crbug.com/645596. |
| if (selection_end < 0) |
| *offset = 0; |
| else |
| *offset = static_cast<LONG>(selection_end); |
| } |
| } |
| |
| LONG AXPlatformNodeWin::FindBoundary(const base::string16& text, |
| IA2TextBoundaryType ia2_boundary, |
| LONG start_offset, |
| TextBoundaryDirection direction) { |
| HandleSpecialTextOffset(&start_offset); |
| AXTextBoundary boundary = FromIA2TextBoundary(ia2_boundary); |
| std::vector<int32_t> line_breaks; |
| return static_cast<LONG>(FindAccessibleTextBoundary( |
| text, line_breaks, boundary, start_offset, direction, |
| ax::mojom::TextAffinity::kDownstream)); |
| } |
| |
| AXPlatformNodeWin* AXPlatformNodeWin::GetTargetFromChildID( |
| const VARIANT& var_id) { |
| if (V_VT(&var_id) != VT_I4) |
| return nullptr; |
| |
| LONG child_id = V_I4(&var_id); |
| if (child_id == CHILDID_SELF) |
| return this; |
| |
| if (child_id >= 1 && child_id <= GetDelegate()->GetChildCount()) { |
| // Positive child ids are a 1-based child index, used by clients |
| // that want to enumerate all immediate children. |
| AXPlatformNodeBase* base = |
| FromNativeViewAccessible(GetDelegate()->ChildAtIndex(child_id - 1)); |
| return static_cast<AXPlatformNodeWin*>(base); |
| } |
| |
| if (child_id >= 0) |
| return nullptr; |
| |
| // Negative child ids can be used to map to any descendant. |
| AXPlatformNode* node = GetFromUniqueId(-child_id); |
| if (!node) |
| return nullptr; |
| |
| AXPlatformNodeBase* base = |
| FromNativeViewAccessible(node->GetNativeViewAccessible()); |
| if (base && !IsDescendant(base)) |
| base = nullptr; |
| |
| return static_cast<AXPlatformNodeWin*>(base); |
| } |
| |
| bool AXPlatformNodeWin::IsInTreeGrid() { |
| AXPlatformNodeBase* container = FromNativeViewAccessible(GetParent()); |
| |
| // If parent was a rowgroup, we need to look at the grandparent |
| if (container && container->GetData().role == ax::mojom::Role::kGroup) |
| container = FromNativeViewAccessible(container->GetParent()); |
| |
| if (!container) |
| return false; |
| |
| return container->GetData().role == ax::mojom::Role::kTreeGrid; |
| } |
| |
| HRESULT AXPlatformNodeWin::AllocateComArrayFromVector( |
| std::vector<LONG>& results, |
| LONG max, |
| LONG** selected, |
| LONG* n_selected) { |
| DCHECK_GT(max, 0); |
| DCHECK(selected); |
| DCHECK(n_selected); |
| |
| auto count = std::min((LONG)results.size(), max); |
| *n_selected = count; |
| *selected = static_cast<LONG*>(CoTaskMemAlloc(sizeof(LONG) * count)); |
| |
| for (LONG i = 0; i < count; i++) |
| (*selected)[i] = results[i]; |
| return S_OK; |
| } |
| |
| // TODO(dmazzoni): Remove this function once combo box refactoring is |
| // complete. |
| bool AXPlatformNodeWin::IsAncestorComboBox() { |
| auto* parent = |
| static_cast<AXPlatformNodeWin*>(FromNativeViewAccessible(GetParent())); |
| if (!parent) |
| return false; |
| if (parent->MSAARole() == ROLE_SYSTEM_COMBOBOX) |
| return true; |
| return parent->IsAncestorComboBox(); |
| } |
| |
| bool AXPlatformNodeWin::IsHyperlink() { |
| int32_t hyperlink_index = -1; |
| AXPlatformNodeWin* parent = |
| static_cast<AXPlatformNodeWin*>(FromNativeViewAccessible(GetParent())); |
| if (parent) { |
| hyperlink_index = parent->GetHyperlinkIndexFromChild(this); |
| } |
| |
| if (hyperlink_index >= 0) |
| return true; |
| return false; |
| } |
| |
| void AXPlatformNodeWin::ComputeHypertextRemovedAndInserted(size_t* start, |
| size_t* old_len, |
| size_t* new_len) { |
| AXPlatformNodeBase::ComputeHypertextRemovedAndInserted(old_hypertext_, start, |
| old_len, new_len); |
| } |
| |
| double AXPlatformNodeWin::GetHorizontalScrollPercent() { |
| if (!IsHorizontallyScrollable()) |
| return UIA_ScrollPatternNoScroll; |
| |
| float x_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMin); |
| float x_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollXMax); |
| float x = GetIntAttribute(ax::mojom::IntAttribute::kScrollX); |
| return 100.0 * (x - x_min) / (x_max - x_min); |
| } |
| |
| double AXPlatformNodeWin::GetVerticalScrollPercent() { |
| if (!IsVerticallyScrollable()) |
| return UIA_ScrollPatternNoScroll; |
| |
| float y_min = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMin); |
| float y_max = GetIntAttribute(ax::mojom::IntAttribute::kScrollYMax); |
| float y = GetIntAttribute(ax::mojom::IntAttribute::kScrollY); |
| return 100.0 * (y - y_min) / (y_max - y_min); |
| } |
| |
| BSTR AXPlatformNodeWin::GetFontNameAttributeAsBSTR() const { |
| const base::string16 string = |
| GetInheritedString16Attribute(ax::mojom::StringAttribute::kFontFamily); |
| |
| return SysAllocString(string.c_str()); |
| } |
| |
| BSTR AXPlatformNodeWin::GetStyleNameAttributeAsBSTR() const { |
| base::string16 style_name = |
| GetDelegate()->GetStyleNameAttributeAsLocalizedString(); |
| |
| return SysAllocString(style_name.c_str()); |
| } |
| |
| TextDecorationLineStyle AXPlatformNodeWin::GetUIATextDecorationStyle( |
| const ax::mojom::IntAttribute int_attribute) const { |
| const ax::mojom::TextDecorationStyle text_decoration_style = |
| static_cast<ax::mojom::TextDecorationStyle>( |
| GetIntAttribute(int_attribute)); |
| |
| switch (text_decoration_style) { |
| case ax::mojom::TextDecorationStyle::kNone: |
| return TextDecorationLineStyle::TextDecorationLineStyle_None; |
| case ax::mojom::TextDecorationStyle::kDotted: |
| return TextDecorationLineStyle::TextDecorationLineStyle_Dot; |
| case ax::mojom::TextDecorationStyle::kDashed: |
| return TextDecorationLineStyle::TextDecorationLineStyle_Dash; |
| case ax::mojom::TextDecorationStyle::kSolid: |
| return TextDecorationLineStyle::TextDecorationLineStyle_Single; |
| case ax::mojom::TextDecorationStyle::kDouble: |
| return TextDecorationLineStyle::TextDecorationLineStyle_Double; |
| case ax::mojom::TextDecorationStyle::kWavy: |
| return TextDecorationLineStyle::TextDecorationLineStyle_Wavy; |
| } |
| } |
| |
| // IRawElementProviderSimple support methods. |
| |
| AXPlatformNodeWin::PatternProviderFactoryMethod |
| AXPlatformNodeWin::GetPatternProviderFactoryMethod(PATTERNID pattern_id) { |
| const AXNodeData& data = GetData(); |
| |
| switch (pattern_id) { |
| case UIA_ExpandCollapsePatternId: |
| if (SupportsExpandCollapse(data)) { |
| return &PatternProvider<IExpandCollapseProvider>; |
| } |
| break; |
| |
| case UIA_GridPatternId: |
| if (IsTableLike(data.role)) { |
| return &PatternProvider<IGridProvider>; |
| } |
| break; |
| |
| case UIA_GridItemPatternId: |
| if (IsCellOrTableHeader(data.role)) { |
| return &PatternProvider<IGridItemProvider>; |
| } |
| break; |
| |
| case UIA_InvokePatternId: |
| if (IsInvokable(data)) { |
| return &PatternProvider<IInvokeProvider>; |
| } |
| break; |
| |
| case UIA_RangeValuePatternId: |
| if (IsRangeValueSupported(data)) { |
| return &PatternProvider<IRangeValueProvider>; |
| } |
| break; |
| |
| case UIA_ScrollPatternId: |
| if (IsScrollable()) { |
| return &PatternProvider<IScrollProvider>; |
| } |
| break; |
| |
| case UIA_ScrollItemPatternId: |
| return &PatternProvider<IScrollItemProvider>; |
| break; |
| |
| case UIA_SelectionItemPatternId: |
| if (IsSelectionItemSupported()) { |
| return &PatternProvider<ISelectionItemProvider>; |
| } |
| break; |
| |
| case UIA_SelectionPatternId: |
| if (IsContainerWithSelectableChildren(data.role)) { |
| return &PatternProvider<ISelectionProvider>; |
| } |
| break; |
| |
| case UIA_TablePatternId: |
| if (IsTableLike(data.role)) { |
| return &PatternProvider<ITableProvider>; |
| } |
| break; |
| |
| case UIA_TableItemPatternId: |
| if (IsCellOrTableHeader(data.role)) { |
| return &PatternProvider<ITableItemProvider>; |
| } |
| break; |
| |
| case UIA_TextChildPatternId: |
| if (AXPlatformNodeTextChildProviderWin::GetTextContainer(this)) { |
| return &AXPlatformNodeTextChildProviderWin::CreateIUnknown; |
| } |
| break; |
| |
| case UIA_TextEditPatternId: |
| case UIA_TextPatternId: |
| if (IsTextOnlyObject() || IsDocument() || |
| HasBoolAttribute(ax::mojom::BoolAttribute::kEditableRoot)) { |
| return &AXPlatformNodeTextProviderWin::CreateIUnknown; |
| } |
| break; |
| |
| case UIA_TogglePatternId: |
| if (SupportsToggle(data.role)) { |
| return &PatternProvider<IToggleProvider>; |
| } |
| break; |
| |
| case UIA_ValuePatternId: |
| if (IsValuePatternSupported(GetDelegate())) { |
| return &PatternProvider<IValueProvider>; |
| } |
| break; |
| |
| case UIA_WindowPatternId: |
| if (HasBoolAttribute(ax::mojom::BoolAttribute::kModal)) { |
| return &PatternProvider<IWindowProvider>; |
| } |
| break; |
| |
| // Not currently implemented. |
| case UIA_AnnotationPatternId: |
| case UIA_CustomNavigationPatternId: |
| case UIA_DockPatternId: |
| case UIA_DragPatternId: |
| case UIA_DropTargetPatternId: |
| case UIA_ItemContainerPatternId: |
| case UIA_MultipleViewPatternId: |
| case UIA_ObjectModelPatternId: |
| case UIA_SpreadsheetPatternId: |
| case UIA_SpreadsheetItemPatternId: |
| case UIA_StylesPatternId: |
| case UIA_SynchronizedInputPatternId: |
| case UIA_TextPattern2Id: |
| case UIA_TransformPatternId: |
| case UIA_TransformPattern2Id: |
| case UIA_VirtualizedItemPatternId: |
| break; |
| |
| // Provided by UIA Core; we should not implement. |
| case UIA_LegacyIAccessiblePatternId: |
| break; |
| } |
| return nullptr; |
| } |
| |
| void AXPlatformNodeWin::FireLiveRegionChangeRecursive() { |
| const auto live_status_attr = ax::mojom::StringAttribute::kLiveStatus; |
| if (HasStringAttribute(live_status_attr) && |
| GetStringAttribute(live_status_attr) != "off") { |
| DCHECK(GetDelegate()->IsWebContent()); |
| ::UiaRaiseAutomationEvent(this, UIA_LiveRegionChangedEventId); |
| return; |
| } |
| |
| for (int index = 0; index < GetChildCount(); ++index) { |
| auto* child = static_cast<AXPlatformNodeWin*>( |
| FromNativeViewAccessible(ChildAtIndex(index))); |
| |
| // We assume that only web-content will have live regions; also because |
| // this will be called on each fragment-root, there is no need to walk |
| // through non-content nodes. |
| if (child->GetDelegate()->IsWebContent()) |
| child->FireLiveRegionChangeRecursive(); |
| } |
| } |
| |
| } // namespace ui |