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chromium / chromium / src / 84c9263088796f6afea44be5a0db02de8e81b572 / . / content / browser / accessibility / accessibility_win_browsertest.cc
blob: 943b5c81c71af6f27836dcb4117f7e2cc9d94e9e [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <objbase.h>
#include <stddef.h>
#include <stdint.h>
#include <wrl/client.h>
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/process/process_handle.h"
#include "base/strings/pattern.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/strings/sys_string_conversions.h"
#include "base/win/scoped_bstr.h"
#include "base/win/scoped_variant.h"
#include "content/browser/accessibility/accessibility_event_recorder.h"
#include "content/browser/accessibility/accessibility_tree_formatter.h"
#include "content/browser/accessibility/accessibility_tree_formatter_utils_win.h"
#include "content/browser/accessibility/browser_accessibility_manager_win.h"
#include "content/browser/accessibility/browser_accessibility_win.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/browser/web_contents/web_contents_view_aura.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "content/test/accessibility_browser_test_utils.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "net/base/escape.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "third_party/iaccessible2/ia2_api_all.h"
#include "third_party/isimpledom/ISimpleDOMNode.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
namespace content {
namespace {
constexpr char kInputContents[] =
"Moz/5.0 (ST 6.x; WWW33) "
"WebKit \"KHTML, like\".";
constexpr char kTextareaContents[] =
"Moz/5.0 (ST 6.x; WWW33)\n"
"WebKit \n\"KHTML, like\".";
constexpr LONG kContentsLength =
static_cast<LONG>((sizeof(kInputContents) - 1) / sizeof(char));
// AccessibilityWinBrowserTest ------------------------------------------------
class AccessibilityWinBrowserTest : public ContentBrowserTest {
public:
AccessibilityWinBrowserTest();
~AccessibilityWinBrowserTest() override;
protected:
class AccessibleChecker;
void LoadInitialAccessibilityTreeFromHtml(
const std::string& html,
ui::AXMode accessibility_mode = ui::kAXModeComplete);
IAccessible* GetRendererAccessible();
base::string16 PrintAXTree() const;
void ExecuteScript(const std::wstring& script);
void SetUpInputField(Microsoft::WRL::ComPtr<IAccessibleText>* input_text);
void SetUpScrollableInputField(
Microsoft::WRL::ComPtr<IAccessibleText>* input_text);
void SetUpTextareaField(
Microsoft::WRL::ComPtr<IAccessibleText>* textarea_text);
void SetUpSampleParagraph(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text,
ui::AXMode accessibility_mode = ui::kAXModeComplete);
void SetUpSampleParagraphInScrollableDocument(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text,
ui::AXMode accessibility_mode = ui::kAXModeComplete);
void SetUpSampleParagraphInScrollableEditable(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text,
ui::AXMode accessibility_mode = ui::kAXModeComplete);
static Microsoft::WRL::ComPtr<IAccessible> GetAccessibleFromVariant(
IAccessible* parent,
VARIANT* var);
static HRESULT QueryIAccessible2(IAccessible* accessible,
IAccessible2** accessible2);
static void FindNodeInAccessibilityTree(IAccessible* node,
int32_t expected_role,
const std::wstring& expected_name,
int32_t depth,
bool* found);
static void CheckTextAtOffset(Microsoft::WRL::ComPtr<IAccessibleText>& object,
LONG offset,
IA2TextBoundaryType boundary_type,
LONG expected_start_offset,
LONG expected_end_offset,
const std::wstring& expected_text);
static std::vector<base::win::ScopedVariant> GetAllAccessibleChildren(
IAccessible* element);
private:
void SetUpInputFieldHelper(
Microsoft::WRL::ComPtr<IAccessibleText>* input_text);
void SetUpSampleParagraphHelper(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text);
DISALLOW_COPY_AND_ASSIGN(AccessibilityWinBrowserTest);
};
AccessibilityWinBrowserTest::AccessibilityWinBrowserTest() {
}
AccessibilityWinBrowserTest::~AccessibilityWinBrowserTest() {
}
void AccessibilityWinBrowserTest::LoadInitialAccessibilityTreeFromHtml(
const std::string& html,
ui::AXMode accessibility_mode) {
AccessibilityNotificationWaiter waiter(shell()->web_contents(),
accessibility_mode,
ax::mojom::Event::kLoadComplete);
GURL html_data_url("data:text/html," +
net::EscapeQueryParamValue(html, false));
NavigateToURL(shell(), html_data_url);
waiter.WaitForNotification();
}
base::string16 AccessibilityWinBrowserTest::PrintAXTree() const {
std::unique_ptr<AccessibilityTreeFormatter> formatter(
AccessibilityTreeFormatter::Create());
DCHECK(formatter);
formatter->set_show_ids(true);
formatter->SetFilters({AccessibilityTreeFormatter::Filter(
L"*", AccessibilityTreeFormatter::Filter::ALLOW)});
base::string16 str;
formatter->FormatAccessibilityTree(
static_cast<WebContentsImpl*>(shell()->web_contents())
->GetRootBrowserAccessibilityManager()
->GetRoot(),
&str);
return str;
}
// Retrieve the MSAA client accessibility object for the Render Widget Host View
// of the selected tab.
IAccessible* AccessibilityWinBrowserTest::GetRendererAccessible() {
content::WebContents* web_contents = shell()->web_contents();
return web_contents->GetRenderWidgetHostView()->GetNativeViewAccessible();
}
void AccessibilityWinBrowserTest::ExecuteScript(const std::wstring& script) {
shell()->web_contents()->GetMainFrame()->ExecuteJavaScriptForTests(script);
}
// Loads a page with an input text field and places sample text in it. Also,
// places the caret before the last character.
void AccessibilityWinBrowserTest::SetUpInputField(
Microsoft::WRL::ComPtr<IAccessibleText>* input_text) {
ASSERT_NE(nullptr, input_text);
LoadInitialAccessibilityTreeFromHtml(std::string(
R"HTML(<!DOCTYPE html>
<html>
<body>
<form>
<label for="textField">Browser name:</label>
<input type="text" id="textField" name="name" value=")HTML") +
net::EscapeForHTML(kInputContents) +
std::string(R"HTML(">
</form>
</body>
</html>)HTML"));
SetUpInputFieldHelper(input_text);
}
// Loads a page with an input text field and places sample text in it that
// overflows its width. Also, places the caret before the last character.
void AccessibilityWinBrowserTest::SetUpScrollableInputField(
Microsoft::WRL::ComPtr<IAccessibleText>* input_text) {
ASSERT_NE(nullptr, input_text);
LoadInitialAccessibilityTreeFromHtml(std::string(
R"HTML(<!DOCTYPE html>
<html>
<body>
<input type="text" style="width: 150px;" value=")HTML") +
net::EscapeForHTML(kInputContents) +
std::string(R"HTML(">
</body>
</html>)HTML"));
SetUpInputFieldHelper(input_text);
}
void AccessibilityWinBrowserTest::SetUpInputFieldHelper(
Microsoft::WRL::ComPtr<IAccessibleText>* input_text) {
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
ASSERT_EQ(1u, document_children.size());
Microsoft::WRL::ComPtr<IAccessible2> div;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
div.GetAddressOf()));
std::vector<base::win::ScopedVariant> div_children =
GetAllAccessibleChildren(div.Get());
ASSERT_LT(0u, div_children.size());
// The input field is always the last child.
Microsoft::WRL::ComPtr<IAccessible2> input;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(div.Get(),
div_children[div_children.size() - 1].AsInput())
.Get(),
input.GetAddressOf()));
LONG input_role = 0;
ASSERT_HRESULT_SUCCEEDED(input->role(&input_role));
ASSERT_EQ(ROLE_SYSTEM_TEXT, input_role);
// Retrieve the IAccessibleText interface for the field.
ASSERT_HRESULT_SUCCEEDED(input.CopyTo(input_text->GetAddressOf()));
// Set the caret before the last character.
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
std::wstring caret_offset = base::UTF16ToWide(
base::IntToString16(static_cast<int>(kContentsLength - 1)));
ExecuteScript(std::wstring(L"let textField = document.querySelector('input');"
L"textField.focus();"
L"textField.setSelectionRange(") +
caret_offset + L"," + caret_offset +
L");"
L"textField.scrollLeft = 1000;");
waiter.WaitForNotification();
}
// Loads a page with a textarea text field and places sample text in it. Also,
// places the caret before the last character.
void AccessibilityWinBrowserTest::SetUpTextareaField(
Microsoft::WRL::ComPtr<IAccessibleText>* textarea_text) {
ASSERT_NE(nullptr, textarea_text);
LoadInitialAccessibilityTreeFromHtml(std::string(R"HTML(<!DOCTYPE html>
<html>
<body>
<textarea rows="3" cols="60">)HTML") +
net::EscapeForHTML(kTextareaContents) +
std::string(R"HTML(</textarea>
</body>
</html>)HTML"));
// Retrieve the IAccessible interface for the web page.
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
ASSERT_EQ(1u, document_children.size());
Microsoft::WRL::ComPtr<IAccessible2> section;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
section.GetAddressOf()));
std::vector<base::win::ScopedVariant> section_children =
GetAllAccessibleChildren(section.Get());
ASSERT_EQ(1u, section_children.size());
// Find the textarea text field.
Microsoft::WRL::ComPtr<IAccessible2> textarea;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(section.Get(), section_children[0].AsInput())
.Get(),
textarea.GetAddressOf()));
LONG textarea_role = 0;
ASSERT_HRESULT_SUCCEEDED(textarea->role(&textarea_role));
ASSERT_EQ(ROLE_SYSTEM_TEXT, textarea_role);
// Retrieve the IAccessibleText interface for the field.
ASSERT_HRESULT_SUCCEEDED(textarea.CopyTo(textarea_text->GetAddressOf()));
// Set the caret before the last character.
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
std::wstring caret_offset = base::UTF16ToWide(
base::IntToString16(static_cast<int>(kContentsLength - 1)));
ExecuteScript(
std::wstring(L"var textField = document.querySelector('textarea');"
L"textField.focus();"
L"textField.setSelectionRange(") +
caret_offset + L"," + caret_offset + L");");
waiter.WaitForNotification();
}
// Loads a page with a paragraph of sample text.
void AccessibilityWinBrowserTest::SetUpSampleParagraph(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text,
ui::AXMode accessibility_mode) {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<!DOCTYPE html>
<html>
<body>
<p><b>Game theory</b> is "the study of
<a href="" title="Mathematical model">mathematical models</a>
of conflict and<br>cooperation between intelligent rational
decision-makers."
</p>
</body>
</html>)HTML",
accessibility_mode);
SetUpSampleParagraphHelper(accessible_text);
}
// Loads a page with a paragraph of sample text which is below the
// bottom of the screen.
void AccessibilityWinBrowserTest::SetUpSampleParagraphInScrollableDocument(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text,
ui::AXMode accessibility_mode) {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<!DOCTYPE html>
<html>
<body style="overflow: scroll; margin-top: 100vh">
<p><b>Game theory</b> is "the study of
<a href="" title="Mathematical model">mathematical models</a>
of conflict and<br>cooperation between intelligent rational
decision-makers."
</p>
</body>
</html>)HTML",
accessibility_mode);
SetUpSampleParagraphHelper(accessible_text);
}
// Loads a page with a content editable whose text overflows its height.
// Places the caret at the beginning of the editable's last line but doesn't
// scroll the editable.
void AccessibilityWinBrowserTest::SetUpSampleParagraphInScrollableEditable(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text,
ui::AXMode accessibility_mode) {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<p contenteditable="true"
style="height: 30px; overflow: scroll;">
hello<br><br><br>hello
</p>)HTML",
accessibility_mode);
AccessibilityNotificationWaiter selection_waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
ExecuteScript(
L"let selection=document.getSelection();"
L"let range=document.createRange();"
L"let editable=document.querySelector('p[contenteditable=\"true\"]');"
L"editable.focus();"
L"range.setStart(editable.lastChild, 0);"
L"range.setEnd(editable.lastChild, 0);"
L"selection.removeAllRanges();"
L"selection.addRange(range);");
selection_waiter.WaitForNotification();
SetUpSampleParagraphHelper(accessible_text);
}
void AccessibilityWinBrowserTest::SetUpSampleParagraphHelper(
Microsoft::WRL::ComPtr<IAccessibleText>* accessible_text) {
ASSERT_NE(nullptr, accessible_text);
// Retrieve the IAccessible interface for the web page.
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
ASSERT_EQ(1u, document_children.size());
Microsoft::WRL::ComPtr<IAccessible2> paragraph;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
paragraph.GetAddressOf()));
LONG paragraph_role = 0;
ASSERT_HRESULT_SUCCEEDED(paragraph->role(&paragraph_role));
ASSERT_EQ(IA2_ROLE_PARAGRAPH, paragraph_role);
ASSERT_HRESULT_SUCCEEDED(paragraph.CopyTo(accessible_text->GetAddressOf()));
}
// Static helpers ------------------------------------------------
Microsoft::WRL::ComPtr<IAccessible>
AccessibilityWinBrowserTest::GetAccessibleFromVariant(IAccessible* parent,
VARIANT* var) {
Microsoft::WRL::ComPtr<IAccessible> ptr;
switch (V_VT(var)) {
case VT_DISPATCH: {
IDispatch* dispatch = V_DISPATCH(var);
if (dispatch)
dispatch->QueryInterface(ptr.GetAddressOf());
break;
}
case VT_I4: {
Microsoft::WRL::ComPtr<IDispatch> dispatch;
HRESULT hr = parent->get_accChild(*var, dispatch.GetAddressOf());
EXPECT_TRUE(SUCCEEDED(hr));
if (dispatch.Get())
dispatch.CopyTo(ptr.GetAddressOf());
break;
}
}
return ptr;
}
HRESULT AccessibilityWinBrowserTest::QueryIAccessible2(
IAccessible* accessible,
IAccessible2** accessible2) {
// IA2 Spec dictates that IServiceProvider should be used instead of
// QueryInterface when retrieving IAccessible2.
Microsoft::WRL::ComPtr<IServiceProvider> service_provider;
HRESULT hr = accessible->QueryInterface(service_provider.GetAddressOf());
return SUCCEEDED(hr) ?
service_provider->QueryService(IID_IAccessible2, accessible2) : hr;
}
// Recursively search through all of the descendants reachable from an
// IAccessible node and return true if we find one with the given role
// and name.
void AccessibilityWinBrowserTest::FindNodeInAccessibilityTree(
IAccessible* node,
int32_t expected_role,
const std::wstring& expected_name,
int32_t depth,
bool* found) {
base::win::ScopedBstr name_bstr;
base::win::ScopedVariant childid_self(CHILDID_SELF);
node->get_accName(childid_self, name_bstr.Receive());
std::wstring name(name_bstr, name_bstr.Length());
base::win::ScopedVariant role;
node->get_accRole(childid_self, role.Receive());
ASSERT_EQ(VT_I4, role.type());
// Print the accessibility tree as we go, because if this test fails
// on the bots, this is really helpful in figuring out why.
for (int i = 0; i < depth; i++)
printf(" ");
printf("role=%s name=%s\n",
base::WideToUTF8(IAccessibleRoleToString(V_I4(role.ptr()))).c_str(),
base::WideToUTF8(name).c_str());
if (expected_role == V_I4(role.ptr()) && expected_name == name) {
*found = true;
return;
}
std::vector<base::win::ScopedVariant> children = GetAllAccessibleChildren(
node);
for (size_t i = 0; i < children.size(); ++i) {
Microsoft::WRL::ComPtr<IAccessible> child_accessible(
GetAccessibleFromVariant(node, children[i].AsInput()));
if (child_accessible) {
FindNodeInAccessibilityTree(
child_accessible.Get(), expected_role, expected_name, depth + 1,
found);
if (*found)
return;
}
}
}
// Ensures that the text and the start and end offsets retrieved using
// get_textAtOffset match the expected values.
void AccessibilityWinBrowserTest::CheckTextAtOffset(
Microsoft::WRL::ComPtr<IAccessibleText>& object,
LONG offset,
IA2TextBoundaryType boundary_type,
LONG expected_start_offset,
LONG expected_end_offset,
const std::wstring& expected_text) {
testing::Message message;
message << "While checking for \'" << expected_text << "\' at " <<
expected_start_offset << '-' << expected_end_offset << '.';
SCOPED_TRACE(message);
LONG start_offset = 0;
LONG end_offset = 0;
base::win::ScopedBstr text;
HRESULT hr = object->get_textAtOffset(offset, boundary_type, &start_offset,
&end_offset, text.Receive());
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(expected_start_offset, start_offset);
EXPECT_EQ(expected_end_offset, end_offset);
EXPECT_EQ(expected_text, std::wstring(text, text.Length()));
}
std::vector<base::win::ScopedVariant>
AccessibilityWinBrowserTest::GetAllAccessibleChildren(
IAccessible* element) {
LONG child_count = 0;
HRESULT hr = element->get_accChildCount(&child_count);
EXPECT_EQ(S_OK, hr);
if (child_count <= 0)
return std::vector<base::win::ScopedVariant>();
std::unique_ptr<VARIANT[]> children_array(new VARIANT[child_count]);
LONG obtained_count = 0;
hr = AccessibleChildren(
element, 0, child_count, children_array.get(), &obtained_count);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(child_count, obtained_count);
std::vector<base::win::ScopedVariant> children(
static_cast<size_t>(child_count));
for (size_t i = 0; i < children.size(); i++)
children[i].Reset(children_array[i]);
return children;
}
// AccessibleChecker ----------------------------------------------------------
class AccessibilityWinBrowserTest::AccessibleChecker {
public:
// This constructor can be used if the IA2 role will be the same as the MSAA
// role.
AccessibleChecker(const std::wstring& expected_name,
int32_t expected_role,
const std::wstring& expected_value);
AccessibleChecker(const std::wstring& expected_name,
int32_t expected_role,
int32_t expected_ia2_role,
const std::wstring& expected_value);
AccessibleChecker(const std::wstring& expected_name,
const std::wstring& expected_role,
int32_t expected_ia2_role,
const std::wstring& expected_value);
// Append an AccessibleChecker that verifies accessibility information for
// a child IAccessible. Order is important.
void AppendExpectedChild(AccessibleChecker* expected_child);
// Check that the name and role of the given IAccessible instance and its
// descendants match the expected names and roles that this object was
// initialized with.
void CheckAccessible(IAccessible* accessible);
// Set the expected value for this AccessibleChecker.
void SetExpectedValue(const std::wstring& expected_value);
// Set the expected state for this AccessibleChecker.
void SetExpectedState(LONG expected_state);
private:
typedef std::vector<AccessibleChecker*> AccessibleCheckerVector;
void CheckAccessibleName(IAccessible* accessible);
void CheckAccessibleRole(IAccessible* accessible);
void CheckIA2Role(IAccessible* accessible);
void CheckAccessibleValue(IAccessible* accessible);
void CheckAccessibleState(IAccessible* accessible);
void CheckAccessibleChildren(IAccessible* accessible);
base::string16 RoleVariantToString(const base::win::ScopedVariant& role);
// Expected accessible name. Checked against IAccessible::get_accName.
std::wstring name_;
// Expected accessible role. Checked against IAccessible::get_accRole.
base::win::ScopedVariant role_;
// Expected IAccessible2 role. Checked against IAccessible2::role.
int32_t ia2_role_;
// Expected accessible value. Checked against IAccessible::get_accValue.
std::wstring value_;
// Expected accessible state. Checked against IAccessible::get_accState.
LONG state_;
// Expected accessible children. Checked using IAccessible::get_accChildCount
// and ::AccessibleChildren.
AccessibleCheckerVector children_;
};
AccessibilityWinBrowserTest::AccessibleChecker::AccessibleChecker(
const std::wstring& expected_name,
int32_t expected_role,
const std::wstring& expected_value)
: name_(expected_name),
role_(expected_role),
ia2_role_(expected_role),
value_(expected_value),
state_(-1) {}
AccessibilityWinBrowserTest::AccessibleChecker::AccessibleChecker(
const std::wstring& expected_name,
int32_t expected_role,
int32_t expected_ia2_role,
const std::wstring& expected_value)
: name_(expected_name),
role_(expected_role),
ia2_role_(expected_ia2_role),
value_(expected_value),
state_(-1) {}
AccessibilityWinBrowserTest::AccessibleChecker::AccessibleChecker(
const std::wstring& expected_name,
const std::wstring& expected_role,
int32_t expected_ia2_role,
const std::wstring& expected_value)
: name_(expected_name),
role_(expected_role.c_str()),
ia2_role_(expected_ia2_role),
value_(expected_value),
state_(-1) {}
void AccessibilityWinBrowserTest::AccessibleChecker::AppendExpectedChild(
AccessibleChecker* expected_child) {
children_.push_back(expected_child);
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckAccessible(
IAccessible* accessible) {
SCOPED_TRACE("While checking "
+ base::UTF16ToUTF8(RoleVariantToString(role_)));
CheckAccessibleName(accessible);
CheckAccessibleRole(accessible);
CheckIA2Role(accessible);
CheckAccessibleValue(accessible);
CheckAccessibleState(accessible);
CheckAccessibleChildren(accessible);
}
void AccessibilityWinBrowserTest::AccessibleChecker::SetExpectedValue(
const std::wstring& expected_value) {
value_ = expected_value;
}
void AccessibilityWinBrowserTest::AccessibleChecker::SetExpectedState(
LONG expected_state) {
state_ = expected_state;
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckAccessibleName(
IAccessible* accessible) {
base::win::ScopedBstr name;
base::win::ScopedVariant childid_self(CHILDID_SELF);
HRESULT hr = accessible->get_accName(childid_self, name.Receive());
if (name_.empty()) {
// If the object doesn't have name S_FALSE should be returned.
EXPECT_EQ(S_FALSE, hr);
} else {
// Test that the correct string was returned.
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(name_, std::wstring(name, name.Length()));
}
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckAccessibleRole(
IAccessible* accessible) {
base::win::ScopedVariant role;
base::win::ScopedVariant childid_self(CHILDID_SELF);
HRESULT hr = accessible->get_accRole(childid_self, role.Receive());
ASSERT_EQ(S_OK, hr);
EXPECT_EQ(0, role_.Compare(role))
<< "Expected role: " << RoleVariantToString(role_)
<< "\nGot role: " << RoleVariantToString(role);
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckIA2Role(
IAccessible* accessible) {
Microsoft::WRL::ComPtr<IAccessible2> accessible2;
HRESULT hr = QueryIAccessible2(accessible, accessible2.GetAddressOf());
ASSERT_EQ(S_OK, hr);
long ia2_role = 0;
hr = accessible2->role(&ia2_role);
ASSERT_EQ(S_OK, hr);
EXPECT_EQ(ia2_role_, ia2_role)
<< "Expected ia2 role: " << IAccessible2RoleToString(ia2_role_)
<< "\nGot ia2 role: " << IAccessible2RoleToString(ia2_role);
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckAccessibleValue(
IAccessible* accessible) {
// Don't check the value if if's a DOCUMENT role, because the value
// is supposed to be the url (and we don't keep track of that in the
// test expectations).
base::win::ScopedVariant role;
base::win::ScopedVariant childid_self(CHILDID_SELF);
HRESULT hr = accessible->get_accRole(childid_self, role.Receive());
ASSERT_EQ(S_OK, hr);
if (role.type() == VT_I4 && V_I4(role.ptr()) == ROLE_SYSTEM_DOCUMENT)
return;
// Get the value.
base::win::ScopedBstr value;
hr = accessible->get_accValue(childid_self, value.Receive());
EXPECT_EQ(S_OK, hr);
// Test that the correct string was returned.
EXPECT_EQ(value_, std::wstring(value, value.Length()));
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckAccessibleState(
IAccessible* accessible) {
if (state_ < 0)
return;
base::win::ScopedVariant state;
base::win::ScopedVariant childid_self(CHILDID_SELF);
HRESULT hr = accessible->get_accState(childid_self, state.Receive());
EXPECT_EQ(S_OK, hr);
ASSERT_EQ(VT_I4, state.type());
LONG obj_state = V_I4(state.ptr());
// Avoid flakiness. The "offscreen" state depends on whether the browser
// window is frontmost or not, and "hottracked" depends on whether the
// mouse cursor happens to be over the element.
obj_state &= ~(STATE_SYSTEM_OFFSCREEN | STATE_SYSTEM_HOTTRACKED);
EXPECT_EQ(state_, obj_state)
<< "Expected state: " << IAccessibleStateToString(state_)
<< "\nGot state: " << IAccessibleStateToString(obj_state);
}
void AccessibilityWinBrowserTest::AccessibleChecker::CheckAccessibleChildren(
IAccessible* parent) {
std::vector<base::win::ScopedVariant> obtained_children =
GetAllAccessibleChildren(parent);
size_t child_count = obtained_children.size();
ASSERT_EQ(child_count, children_.size());
AccessibleCheckerVector::iterator child_checker;
std::vector<base::win::ScopedVariant>::iterator child;
for (child_checker = children_.begin(),
child = obtained_children.begin();
child_checker != children_.end()
&& child != obtained_children.end();
++child_checker, ++child) {
Microsoft::WRL::ComPtr<IAccessible> child_accessible(
GetAccessibleFromVariant(parent, child->AsInput()));
ASSERT_TRUE(child_accessible.Get());
(*child_checker)->CheckAccessible(child_accessible.Get());
}
}
base::string16
AccessibilityWinBrowserTest::AccessibleChecker::RoleVariantToString(
const base::win::ScopedVariant& role) {
if (role.type() == VT_I4)
return IAccessibleRoleToString(V_I4(role.ptr()));
if (role.type() == VT_BSTR)
return base::string16(V_BSTR(role.ptr()), SysStringLen(V_BSTR(role.ptr())));
return base::string16();
}
// Helper class that listens to native Windows events using
// AccessibilityEventRecorder, and blocks until the pretty-printed
// event string matches the given match pattern.
class NativeWinEventWaiter {
public:
NativeWinEventWaiter(BrowserAccessibilityManager* manager,
const std::string& match_pattern)
: event_recorder_(
AccessibilityEventRecorder::Create(manager,
base::GetCurrentProcId())),
match_pattern_(match_pattern) {
event_recorder_->ListenToEvents(base::BindRepeating(
&NativeWinEventWaiter::OnEvent, base::Unretained(this)));
}
void OnEvent(std::string event_str) {
DLOG(INFO) << "Got event " + event_str;
if (base::MatchPattern(event_str, match_pattern_))
run_loop_.QuitClosure().Run();
}
void Wait() { run_loop_.Run(); }
private:
std::unique_ptr<AccessibilityEventRecorder> event_recorder_;
std::string match_pattern_;
base::RunLoop run_loop_;
};
} // namespace
// Tests ----------------------------------------------------------------------
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestBusyAccessibilityTree) {
NavigateToURL(shell(), GURL(url::kAboutBlankURL));
// The initial accessible returned should have state STATE_SYSTEM_BUSY while
// the accessibility tree is being requested from the renderer.
AccessibleChecker document1_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
document1_checker.SetExpectedState(
STATE_SYSTEM_READONLY | STATE_SYSTEM_FOCUSABLE | STATE_SYSTEM_FOCUSED |
STATE_SYSTEM_BUSY);
document1_checker.CheckAccessible(GetRendererAccessible());
}
// Periodically failing. See crbug.com/145537
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
DISABLED_TestNotificationActiveDescendantChanged) {
LoadInitialAccessibilityTreeFromHtml(
"<ul tabindex='-1' role='radiogroup' aria-label='ul'>"
"<li id='li'>li</li></ul>");
// Check the browser's copy of the renderer accessibility tree.
AccessibleChecker list_marker_checker(L"\x2022", ROLE_SYSTEM_TEXT,
std::wstring());
AccessibleChecker static_text_checker(L"li", ROLE_SYSTEM_TEXT,
std::wstring());
AccessibleChecker list_item_checker(std::wstring(), ROLE_SYSTEM_LISTITEM,
std::wstring());
list_item_checker.SetExpectedState(STATE_SYSTEM_READONLY);
AccessibleChecker radio_group_checker(L"ul", ROLE_SYSTEM_GROUPING,
IA2_ROLE_SECTION, std::wstring());
radio_group_checker.SetExpectedState(STATE_SYSTEM_FOCUSABLE);
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
list_item_checker.AppendExpectedChild(&list_marker_checker);
list_item_checker.AppendExpectedChild(&static_text_checker);
radio_group_checker.AppendExpectedChild(&list_item_checker);
document_checker.AppendExpectedChild(&radio_group_checker);
document_checker.CheckAccessible(GetRendererAccessible());
// Set focus to the radio group.
std::unique_ptr<AccessibilityNotificationWaiter> waiter(
new AccessibilityNotificationWaiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kFocus));
ExecuteScript(L"document.body.children[0].focus()");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
radio_group_checker.SetExpectedState(
STATE_SYSTEM_FOCUSABLE | STATE_SYSTEM_FOCUSED);
document_checker.CheckAccessible(GetRendererAccessible());
// Set the active descendant of the radio group
waiter.reset(new AccessibilityNotificationWaiter(
shell()->web_contents(), ui::kAXModeComplete, ax::mojom::Event::kFocus));
ExecuteScript(
L"document.body.children[0].setAttribute('aria-activedescendant', 'li')");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
list_item_checker.SetExpectedState(
STATE_SYSTEM_READONLY | STATE_SYSTEM_FOCUSED);
radio_group_checker.SetExpectedState(STATE_SYSTEM_FOCUSABLE);
document_checker.CheckAccessible(GetRendererAccessible());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestNotificationCheckedStateChanged) {
LoadInitialAccessibilityTreeFromHtml(
"<body><input type='checkbox' /></body>");
// Check the browser's copy of the renderer accessibility tree.
AccessibleChecker checkbox_checker(std::wstring(), ROLE_SYSTEM_CHECKBUTTON,
std::wstring());
checkbox_checker.SetExpectedState(STATE_SYSTEM_FOCUSABLE);
AccessibleChecker body_checker(std::wstring(), L"BODY", IA2_ROLE_SECTION,
std::wstring());
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
body_checker.AppendExpectedChild(&checkbox_checker);
document_checker.AppendExpectedChild(&body_checker);
document_checker.CheckAccessible(GetRendererAccessible());
// Check the checkbox.
std::unique_ptr<AccessibilityNotificationWaiter> waiter(
new AccessibilityNotificationWaiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kCheckedStateChanged));
ExecuteScript(L"document.body.children[0].checked=true");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
checkbox_checker.SetExpectedState(
STATE_SYSTEM_CHECKED | STATE_SYSTEM_FOCUSABLE);
document_checker.CheckAccessible(GetRendererAccessible());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestNotificationChildrenChanged) {
// The role attribute causes the node to be in the accessibility tree.
LoadInitialAccessibilityTreeFromHtml("<body role=group></body>");
// Check the browser's copy of the renderer accessibility tree.
AccessibleChecker group_checker(std::wstring(), ROLE_SYSTEM_GROUPING,
std::wstring());
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
document_checker.AppendExpectedChild(&group_checker);
document_checker.CheckAccessible(GetRendererAccessible());
// Change the children of the document body.
std::unique_ptr<AccessibilityNotificationWaiter> waiter(
new AccessibilityNotificationWaiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kChildrenChanged));
ExecuteScript(L"document.body.innerHTML='<b>new text</b>'");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
AccessibleChecker text_checker(
L"new text", ROLE_SYSTEM_STATICTEXT, std::wstring());
group_checker.AppendExpectedChild(&text_checker);
document_checker.CheckAccessible(GetRendererAccessible());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestNotificationChildrenChanged2) {
// The role attribute causes the node to be in the accessibility tree.
LoadInitialAccessibilityTreeFromHtml(
"<div role=group style='visibility: hidden'>text</div>");
// Check the accessible tree of the browser.
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
document_checker.CheckAccessible(GetRendererAccessible());
// Change the children of the document body.
std::unique_ptr<AccessibilityNotificationWaiter> waiter(
new AccessibilityNotificationWaiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kChildrenChanged));
ExecuteScript(L"document.body.children[0].style.visibility='visible'");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
AccessibleChecker static_text_checker(L"text", ROLE_SYSTEM_STATICTEXT,
std::wstring());
AccessibleChecker group_checker(std::wstring(), ROLE_SYSTEM_GROUPING,
std::wstring());
document_checker.AppendExpectedChild(&group_checker);
group_checker.AppendExpectedChild(&static_text_checker);
document_checker.CheckAccessible(GetRendererAccessible());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestNotificationFocusChanged) {
// The role attribute causes the node to be in the accessibility tree.
LoadInitialAccessibilityTreeFromHtml("<div role=group tabindex='-1'></div>");
// Check the browser's copy of the renderer accessibility tree.
SCOPED_TRACE("Check initial tree");
AccessibleChecker group_checker(std::wstring(), ROLE_SYSTEM_GROUPING,
std::wstring());
group_checker.SetExpectedState(STATE_SYSTEM_FOCUSABLE);
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
document_checker.AppendExpectedChild(&group_checker);
document_checker.CheckAccessible(GetRendererAccessible());
// Focus the div in the document
std::unique_ptr<AccessibilityNotificationWaiter> waiter(
new AccessibilityNotificationWaiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kFocus));
ExecuteScript(L"document.body.children[0].focus()");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
SCOPED_TRACE("Check updated tree after focusing div");
group_checker.SetExpectedState(
STATE_SYSTEM_FOCUSABLE | STATE_SYSTEM_FOCUSED);
document_checker.CheckAccessible(GetRendererAccessible());
// Focus the document accessible. This will un-focus the current node.
waiter.reset(new AccessibilityNotificationWaiter(
shell()->web_contents(), ui::kAXModeComplete, ax::mojom::Event::kBlur));
Microsoft::WRL::ComPtr<IAccessible> document_accessible(
GetRendererAccessible());
ASSERT_NE(document_accessible.Get(), reinterpret_cast<IAccessible*>(NULL));
base::win::ScopedVariant childid_self(CHILDID_SELF);
HRESULT hr = document_accessible->accSelect(SELFLAG_TAKEFOCUS, childid_self);
ASSERT_EQ(S_OK, hr);
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
SCOPED_TRACE("Check updated tree after focusing document again");
group_checker.SetExpectedState(STATE_SYSTEM_FOCUSABLE);
document_checker.CheckAccessible(GetRendererAccessible());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestNotificationValueChanged) {
LoadInitialAccessibilityTreeFromHtml(
"<body><input type='text' value='old value'/></body>");
// Check the browser's copy of the renderer accessibility tree.
AccessibleChecker text_field_checker(std::wstring(), ROLE_SYSTEM_TEXT,
L"old value");
text_field_checker.SetExpectedState(STATE_SYSTEM_FOCUSABLE);
AccessibleChecker body_checker(std::wstring(), L"BODY", IA2_ROLE_SECTION,
std::wstring());
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
body_checker.AppendExpectedChild(&text_field_checker);
document_checker.AppendExpectedChild(&body_checker);
document_checker.CheckAccessible(GetRendererAccessible());
// Set the value of the text control
std::unique_ptr<AccessibilityNotificationWaiter> waiter(
new AccessibilityNotificationWaiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kValueChanged));
ExecuteScript(L"document.body.children[0].value='new value'");
waiter->WaitForNotification();
// Check that the accessibility tree of the browser has been updated.
text_field_checker.SetExpectedValue(L"new value");
document_checker.CheckAccessible(GetRendererAccessible());
}
// This test verifies that the web content's accessibility tree is a
// descendant of the main browser window's accessibility tree, so that
// tools like AccExplorer32 or AccProbe can be used to examine Chrome's
// accessibility support.
//
// If you made a change and this test now fails, check that the NativeViewHost
// that wraps the tab contents returns the IAccessible implementation
// provided by RenderWidgetHostViewWin in GetNativeViewAccessible().
// flaky: http://crbug.com/402190
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
DISABLED_ContainsRendererAccessibilityTree) {
LoadInitialAccessibilityTreeFromHtml(
"<html><head><title>MyDocument</title></head>"
"<body>Content</body></html>");
// Get the accessibility object for the window tree host.
aura::Window* window = shell()->window();
CHECK(window);
aura::WindowTreeHost* window_tree_host = window->GetHost();
CHECK(window_tree_host);
HWND hwnd = window_tree_host->GetAcceleratedWidget();
CHECK(hwnd);
Microsoft::WRL::ComPtr<IAccessible> browser_accessible;
HRESULT hr = AccessibleObjectFromWindow(
hwnd, OBJID_WINDOW, IID_IAccessible,
reinterpret_cast<void**>(browser_accessible.GetAddressOf()));
ASSERT_EQ(S_OK, hr);
bool found = false;
FindNodeInAccessibilityTree(
browser_accessible.Get(), ROLE_SYSTEM_DOCUMENT, L"MyDocument", 0, &found);
ASSERT_EQ(found, true);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
SupportsISimpleDOM) {
LoadInitialAccessibilityTreeFromHtml(
"<body><input type='checkbox'></body>");
// Get the IAccessible object for the document.
Microsoft::WRL::ComPtr<IAccessible> document_accessible(
GetRendererAccessible());
ASSERT_NE(document_accessible.Get(), reinterpret_cast<IAccessible*>(NULL));
// Get the ISimpleDOM object for the document.
Microsoft::WRL::ComPtr<IServiceProvider> service_provider;
HRESULT hr = static_cast<IAccessible*>(document_accessible.Get())
->QueryInterface(service_provider.GetAddressOf());
ASSERT_EQ(S_OK, hr);
const GUID refguid = {0x0c539790,
0x12e4,
0x11cf,
{0xb6, 0x61, 0x00, 0xaa, 0x00, 0x4c, 0xd6, 0xd8}};
Microsoft::WRL::ComPtr<ISimpleDOMNode> document_isimpledomnode;
hr = service_provider->QueryService(refguid,
IID_PPV_ARGS(&document_isimpledomnode));
ASSERT_EQ(S_OK, hr);
base::win::ScopedBstr node_name;
short name_space_id; // NOLINT
base::win::ScopedBstr node_value;
unsigned int num_children;
unsigned int unique_id;
unsigned short node_type; // NOLINT
hr = document_isimpledomnode->get_nodeInfo(
node_name.Receive(), &name_space_id, node_value.Receive(), &num_children,
&unique_id, &node_type);
ASSERT_EQ(S_OK, hr);
EXPECT_EQ(NODETYPE_DOCUMENT, node_type);
EXPECT_EQ(1u, num_children);
node_name.Reset();
node_value.Reset();
Microsoft::WRL::ComPtr<ISimpleDOMNode> body_isimpledomnode;
hr = document_isimpledomnode->get_firstChild(
body_isimpledomnode.GetAddressOf());
ASSERT_EQ(S_OK, hr);
hr = body_isimpledomnode->get_nodeInfo(
node_name.Receive(), &name_space_id, node_value.Receive(), &num_children,
&unique_id, &node_type);
ASSERT_EQ(S_OK, hr);
EXPECT_EQ(L"body", std::wstring(node_name, node_name.Length()));
EXPECT_EQ(NODETYPE_ELEMENT, node_type);
EXPECT_EQ(1u, num_children);
node_name.Reset();
node_value.Reset();
Microsoft::WRL::ComPtr<ISimpleDOMNode> checkbox_isimpledomnode;
hr = body_isimpledomnode->get_firstChild(
checkbox_isimpledomnode.GetAddressOf());
ASSERT_EQ(S_OK, hr);
hr = checkbox_isimpledomnode->get_nodeInfo(
node_name.Receive(), &name_space_id, node_value.Receive(), &num_children,
&unique_id, &node_type);
ASSERT_EQ(S_OK, hr);
EXPECT_EQ(L"input", std::wstring(node_name, node_name.Length()));
EXPECT_EQ(NODETYPE_ELEMENT, node_type);
EXPECT_EQ(0u, num_children);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestRoleGroup) {
LoadInitialAccessibilityTreeFromHtml(
"<fieldset></fieldset><div role=group></div>");
// Check the browser's copy of the renderer accessibility tree.
AccessibleChecker grouping1_checker(std::wstring(), ROLE_SYSTEM_GROUPING,
std::wstring());
AccessibleChecker grouping2_checker(std::wstring(), ROLE_SYSTEM_GROUPING,
std::wstring());
AccessibleChecker document_checker(std::wstring(), ROLE_SYSTEM_DOCUMENT,
std::wstring());
document_checker.AppendExpectedChild(&grouping1_checker);
document_checker.AppendExpectedChild(&grouping2_checker);
document_checker.CheckAccessible(GetRendererAccessible());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestCharacterExtentsWithInvalidArguments) {
Microsoft::WRL::ComPtr<IAccessibleText> paragraph_text;
SetUpSampleParagraph(&paragraph_text);
LONG invalid_offset = -3;
LONG x = -1, y = -1;
LONG width = -1, height = -1;
HRESULT hr = paragraph_text->get_characterExtents(
invalid_offset, IA2_COORDTYPE_SCREEN_RELATIVE, &x, &y, &width, &height);
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(-1, x);
EXPECT_EQ(-1, y);
EXPECT_EQ(-1, width);
EXPECT_EQ(-1, height);
hr = paragraph_text->get_characterExtents(
invalid_offset, IA2_COORDTYPE_PARENT_RELATIVE, &x, &y, &width, &height);
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(-1, x);
EXPECT_EQ(-1, y);
EXPECT_EQ(-1, width);
EXPECT_EQ(-1, height);
LONG n_characters;
ASSERT_HRESULT_SUCCEEDED(paragraph_text->get_nCharacters(&n_characters));
ASSERT_LT(0, n_characters);
invalid_offset = n_characters + 1;
hr = paragraph_text->get_characterExtents(
invalid_offset, IA2_COORDTYPE_SCREEN_RELATIVE, &x, &y, &width, &height);
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(-1, x);
EXPECT_EQ(-1, y);
EXPECT_EQ(-1, width);
EXPECT_EQ(-1, height);
hr = paragraph_text->get_characterExtents(
invalid_offset, IA2_COORDTYPE_PARENT_RELATIVE, &x, &y, &width, &height);
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(-1, x);
EXPECT_EQ(-1, y);
EXPECT_EQ(-1, width);
EXPECT_EQ(-1, height);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestCharacterExtentsInEditable) {
Microsoft::WRL::ComPtr<IAccessibleText> paragraph_text;
SetUpSampleParagraph(&paragraph_text);
constexpr LONG newline_offset = 46;
LONG n_characters;
ASSERT_HRESULT_SUCCEEDED(paragraph_text->get_nCharacters(&n_characters));
ASSERT_EQ(105, n_characters);
LONG x, y, width, height;
LONG previous_x, previous_y, previous_height;
for (int coordinate = IA2_COORDTYPE_SCREEN_RELATIVE;
coordinate <= IA2_COORDTYPE_PARENT_RELATIVE; ++coordinate) {
auto coordinate_type = static_cast<IA2CoordinateType>(coordinate);
EXPECT_HRESULT_SUCCEEDED(paragraph_text->get_characterExtents(
0, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(0, x) << "at offset 0";
EXPECT_LT(0, y) << "at offset 0";
EXPECT_LT(1, width) << "at offset 0";
EXPECT_LT(1, height) << "at offset 0";
for (LONG offset = 1; offset < newline_offset; ++offset) {
previous_x = x;
previous_y = y;
previous_height = height;
EXPECT_HRESULT_SUCCEEDED(paragraph_text->get_characterExtents(
offset, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << offset;
EXPECT_EQ(previous_y, y) << "at offset " << offset;
EXPECT_LT(1, width) << "at offset " << offset;
EXPECT_EQ(previous_height, height) << "at offset " << offset;
}
EXPECT_HRESULT_SUCCEEDED(paragraph_text->get_characterExtents(
newline_offset + 1, coordinate_type, &x, &y, &width, &height));
EXPECT_LE(0, x) << "at offset " << newline_offset + 1;
EXPECT_GT(previous_x, x) << "at offset " << newline_offset + 1;
EXPECT_LT(previous_y, y) << "at offset " << newline_offset + 1;
EXPECT_LT(1, width) << "at offset " << newline_offset + 1;
EXPECT_EQ(previous_height, height) << "at offset " << newline_offset + 1;
for (LONG offset = newline_offset + 2; offset < n_characters; ++offset) {
previous_x = x;
previous_y = y;
previous_height = height;
EXPECT_HRESULT_SUCCEEDED(paragraph_text->get_characterExtents(
offset, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << offset;
EXPECT_EQ(previous_y, y) << "at offset " << offset;
EXPECT_LT(1, width) << "at offset " << offset;
EXPECT_EQ(previous_height, height) << "at offset " << offset;
}
}
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestCharacterExtentsInScrollableEditable) {
Microsoft::WRL::ComPtr<IAccessibleText> editable_container;
// By construction, only the first line of the content editable is visible.
SetUpSampleParagraphInScrollableEditable(&editable_container);
constexpr LONG first_line_end = 5;
constexpr LONG last_line_start = 8;
LONG n_characters;
ASSERT_HRESULT_SUCCEEDED(editable_container->get_nCharacters(&n_characters));
ASSERT_EQ(13, n_characters);
LONG caret_offset;
ASSERT_HRESULT_SUCCEEDED(editable_container->get_caretOffset(&caret_offset));
ASSERT_EQ(last_line_start, caret_offset);
LONG x, y, width, height;
LONG previous_x, previous_y, previous_height;
for (int coordinate = IA2_COORDTYPE_SCREEN_RELATIVE;
coordinate <= IA2_COORDTYPE_PARENT_RELATIVE; ++coordinate) {
auto coordinate_type = static_cast<IA2CoordinateType>(coordinate);
// Test that non offscreen characters have increasing x coordinates and a
// height that is greater than 1px.
EXPECT_HRESULT_SUCCEEDED(editable_container->get_characterExtents(
0, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(0, x) << "at offset 0";
EXPECT_LT(0, y) << "at offset 0";
EXPECT_LT(1, width) << "at offset 0";
EXPECT_LT(1, height) << "at offset 0";
for (LONG offset = 1; offset < first_line_end; ++offset) {
previous_x = x;
previous_y = y;
previous_height = height;
EXPECT_HRESULT_SUCCEEDED(editable_container->get_characterExtents(
offset, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << offset;
EXPECT_EQ(previous_y, y) << "at offset " << offset;
EXPECT_LT(1, width) << "at offset " << offset;
EXPECT_EQ(previous_height, height) << "at offset " << offset;
}
EXPECT_HRESULT_SUCCEEDED(editable_container->get_characterExtents(
last_line_start, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(0, x) << "at offset " << last_line_start;
EXPECT_LT(previous_y, y) << "at offset " << last_line_start;
EXPECT_LT(1, width) << "at offset " << last_line_start;
EXPECT_EQ(previous_height, height) << "at offset " << last_line_start;
for (LONG offset = last_line_start + 1; offset < n_characters; ++offset) {
previous_x = x;
previous_y = y;
EXPECT_HRESULT_SUCCEEDED(editable_container->get_characterExtents(
offset, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << offset;
EXPECT_EQ(previous_y, y) << "at offset " << offset;
EXPECT_LT(1, width) << "at offset " << offset;
EXPECT_EQ(previous_height, height) << "at offset " << offset;
}
}
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestCharacterExtentsInScrollableInputField) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpScrollableInputField(&input_text);
constexpr LONG visible_characters_start = 21;
LONG n_characters;
ASSERT_HRESULT_SUCCEEDED(input_text->get_nCharacters(&n_characters));
ASSERT_EQ(kContentsLength, n_characters);
LONG caret_offset;
ASSERT_HRESULT_SUCCEEDED(input_text->get_caretOffset(&caret_offset));
ASSERT_EQ(kContentsLength - 1, caret_offset);
LONG x, y, width, height;
LONG previous_x, previous_y, previous_height;
for (int coordinate = IA2_COORDTYPE_SCREEN_RELATIVE;
coordinate <= IA2_COORDTYPE_PARENT_RELATIVE; ++coordinate) {
auto coordinate_type = static_cast<IA2CoordinateType>(coordinate);
EXPECT_HRESULT_SUCCEEDED(input_text->get_characterExtents(
0, coordinate_type, &x, &y, &width, &height));
EXPECT_GT(0, x + width) << "at offset 0";
EXPECT_LT(0, y) << "at offset 0";
EXPECT_LT(1, width) << "at offset 0";
EXPECT_LT(1, height) << "at offset 0";
for (LONG offset = 1; offset < (visible_characters_start - 1); ++offset) {
previous_x = x;
previous_y = y;
previous_height = height;
EXPECT_HRESULT_SUCCEEDED(input_text->get_characterExtents(
offset, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << offset;
EXPECT_EQ(previous_y, y) << "at offset " << offset;
EXPECT_LT(1, width) << "at offset " << offset;
EXPECT_EQ(previous_height, height) << "at offset " << offset;
}
// Test that non offscreen characters have increasing x coordinates and a
// width that is greater than 1px.
EXPECT_HRESULT_SUCCEEDED(input_text->get_characterExtents(
visible_characters_start, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << visible_characters_start;
EXPECT_EQ(previous_y, y) << "at offset " << visible_characters_start;
EXPECT_LT(1, width) << "at offset " << visible_characters_start;
EXPECT_EQ(previous_height, height)
<< "at offset " << visible_characters_start;
// Exclude the dot at the end of the text field, because it has a width of
// one anyway.
for (LONG offset = visible_characters_start + 1;
offset < (n_characters - 1); ++offset) {
previous_x = x;
previous_y = y;
previous_height = height;
EXPECT_HRESULT_SUCCEEDED(input_text->get_characterExtents(
offset, coordinate_type, &x, &y, &width, &height));
EXPECT_LT(previous_x, x) << "at offset " << offset;
EXPECT_EQ(previous_y, y) << "at offset " << offset;
EXPECT_LT(1, width) << "at offset " << offset;
EXPECT_EQ(previous_height, height) << "at offset " << offset;
}
}
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestCharacterExtentsWithAccessibilityModeChange) {
Microsoft::WRL::ComPtr<IAccessibleText> paragraph_text;
SetUpSampleParagraph(&paragraph_text, ui::AXMode::kNativeAPIs |
ui::AXMode::kWebContents |
ui::AXMode::kScreenReader);
LONG x, y, width, height;
AccessibilityNotificationWaiter waiter(
shell()->web_contents(),
ui::AXMode::kNativeAPIs | ui::AXMode::kWebContents |
ui::AXMode::kScreenReader | ui::AXMode::kInlineTextBoxes,
ax::mojom::Event::kLoadComplete);
EXPECT_HRESULT_SUCCEEDED(paragraph_text->get_characterExtents(
0, IA2_COORDTYPE_SCREEN_RELATIVE, &x, &y, &width, &height));
// X and y coordinates should be available without
// |ui::AXMode::kInlineTextBoxes|.
EXPECT_LT(0, x);
EXPECT_LT(0, y);
// Width and height should be unavailable at this point.
EXPECT_EQ(0, width);
EXPECT_EQ(0, height);
waiter.WaitForNotification();
// Inline text boxes should have been enabled by this point.
EXPECT_HRESULT_SUCCEEDED(paragraph_text->get_characterExtents(
0, IA2_COORDTYPE_SCREEN_RELATIVE, &x, &y, &width, &height));
EXPECT_LT(0, x);
EXPECT_LT(0, y);
EXPECT_LT(1, width);
EXPECT_LT(1, height);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestScrollToPoint) {
Microsoft::WRL::ComPtr<IAccessibleText> accessible_text;
SetUpSampleParagraphInScrollableDocument(&accessible_text);
Microsoft::WRL::ComPtr<IAccessible2> paragraph;
ASSERT_HRESULT_SUCCEEDED(
accessible_text.CopyTo(IID_PPV_ARGS(&paragraph)));
LONG prev_x, prev_y, x, y, width, height;
base::win::ScopedVariant childid_self(CHILDID_SELF);
ASSERT_HRESULT_SUCCEEDED(
paragraph->accLocation(&prev_x, &prev_y, &width, &height, childid_self));
AccessibilityNotificationWaiter location_changed_waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kLocationChanged);
EXPECT_HRESULT_SUCCEEDED(
paragraph->scrollToPoint(IA2_COORDTYPE_PARENT_RELATIVE, 0, 0));
location_changed_waiter.WaitForNotification();
ASSERT_HRESULT_SUCCEEDED(
paragraph->accLocation(&x, &y, &width, &height, childid_self));
EXPECT_EQ(prev_x, x);
EXPECT_GT(prev_y, y);
prev_x = x;
prev_y = y;
EXPECT_HRESULT_SUCCEEDED(
paragraph->scrollToPoint(IA2_COORDTYPE_SCREEN_RELATIVE, 0, 0));
location_changed_waiter.WaitForNotification();
ASSERT_HRESULT_SUCCEEDED(
paragraph->accLocation(&x, &y, &width, &height, childid_self));
EXPECT_EQ(prev_x, x);
EXPECT_EQ(prev_y, y);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestSetCaretOffset) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
LONG caret_offset = 0;
HRESULT hr = input_text->get_caretOffset(&caret_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(kContentsLength - 1, caret_offset);
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
caret_offset = 0;
hr = input_text->setCaretOffset(caret_offset);
EXPECT_EQ(S_OK, hr);
waiter.WaitForNotification();
hr = input_text->get_caretOffset(&caret_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(0, caret_offset);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineSetCaretOffset) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
LONG caret_offset = 0;
HRESULT hr = textarea_text->get_caretOffset(&caret_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(kContentsLength - 1, caret_offset);
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
caret_offset = 0;
hr = textarea_text->setCaretOffset(caret_offset);
EXPECT_EQ(S_OK, hr);
waiter.WaitForNotification();
hr = textarea_text->get_caretOffset(&caret_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(0, caret_offset);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestSetSelection) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
LONG start_offset, end_offset;
EXPECT_HRESULT_FAILED(
input_text->get_selection(1, &start_offset, &end_offset));
HRESULT hr = input_text->get_selection(0, &start_offset, &end_offset);
// There is no selection, just a caret.
EXPECT_EQ(E_INVALIDARG, hr);
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
start_offset = 0;
end_offset = kContentsLength;
EXPECT_HRESULT_FAILED(input_text->setSelection(1, start_offset, end_offset));
EXPECT_HRESULT_SUCCEEDED(
input_text->setSelection(0, start_offset, end_offset));
waiter.WaitForNotification();
hr = input_text->get_selection(0, &start_offset, &end_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(kContentsLength, end_offset);
start_offset = kContentsLength;
end_offset = 1;
EXPECT_HRESULT_SUCCEEDED(
input_text->setSelection(0, start_offset, end_offset));
waiter.WaitForNotification();
hr = input_text->get_selection(0, &start_offset, &end_offset);
EXPECT_EQ(S_OK, hr);
// Start and end offsets are always swapped to be in ascending order.
EXPECT_EQ(1, start_offset);
EXPECT_EQ(kContentsLength, end_offset);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestMultiLineSetSelection) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
LONG start_offset, end_offset;
EXPECT_HRESULT_FAILED(
textarea_text->get_selection(1, &start_offset, &end_offset));
HRESULT hr = textarea_text->get_selection(0, &start_offset, &end_offset);
// There is no selection, just a caret.
EXPECT_EQ(E_INVALIDARG, hr);
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kTextSelectionChanged);
start_offset = 0;
end_offset = kContentsLength;
EXPECT_HRESULT_FAILED(
textarea_text->setSelection(1, start_offset, end_offset));
EXPECT_HRESULT_SUCCEEDED(
textarea_text->setSelection(0, start_offset, end_offset));
waiter.WaitForNotification();
hr = textarea_text->get_selection(0, &start_offset, &end_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(kContentsLength, end_offset);
start_offset = kContentsLength - 1;
end_offset = 0;
EXPECT_HRESULT_SUCCEEDED(
textarea_text->setSelection(0, start_offset, end_offset));
waiter.WaitForNotification();
hr = textarea_text->get_selection(0, &start_offset, &end_offset);
EXPECT_EQ(S_OK, hr);
// Start and end offsets are always swapped to be in ascending order.
EXPECT_EQ(0, start_offset);
EXPECT_EQ(kContentsLength - 1, end_offset);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestStaticTextSetSelection) {
Microsoft::WRL::ComPtr<IAccessibleText> paragraph_text;
SetUpSampleParagraph(&paragraph_text);
LONG n_characters;
ASSERT_HRESULT_SUCCEEDED(paragraph_text->get_nCharacters(&n_characters));
ASSERT_LT(0, n_characters);
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kDocumentSelectionChanged);
LONG start_offset = 0;
LONG end_offset = n_characters;
EXPECT_HRESULT_FAILED(
paragraph_text->setSelection(1, start_offset, end_offset));
EXPECT_HRESULT_SUCCEEDED(
paragraph_text->setSelection(0, start_offset, end_offset));
waiter.WaitForNotification();
HRESULT hr = paragraph_text->get_selection(0, &start_offset, &end_offset);
EXPECT_EQ(S_OK, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(n_characters, end_offset);
start_offset = n_characters - 1;
end_offset = 0;
EXPECT_HRESULT_SUCCEEDED(
paragraph_text->setSelection(0, start_offset, end_offset));
waiter.WaitForNotification();
hr = paragraph_text->get_selection(0, &start_offset, &end_offset);
EXPECT_EQ(S_OK, hr);
// Start and end offsets are always swapped to be in ascending order.
EXPECT_EQ(0, start_offset);
EXPECT_EQ(n_characters - 1, end_offset);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestTextAtOffsetWithInvalidArguments) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
HRESULT hr = input_text->get_textAtOffset(
0, IA2_TEXT_BOUNDARY_CHAR, NULL, NULL, NULL);
EXPECT_EQ(E_INVALIDARG, hr);
// Test invalid offset.
LONG start_offset = 0;
LONG end_offset = 0;
base::win::ScopedBstr text;
LONG invalid_offset = -5;
hr = input_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_CHAR,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
invalid_offset = kContentsLength + 1;
hr = input_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_WORD,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
// According to the IA2 Spec, only line boundaries should succeed when
// the offset is one past the end of the text.
invalid_offset = kContentsLength;
hr = input_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_CHAR,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = input_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_WORD,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = input_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_SENTENCE,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = input_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_ALL,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
// The same behavior should be observed when the special offset
// IA2_TEXT_OFFSET_LENGTH is used.
hr = input_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_CHAR,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = input_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_WORD,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = input_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_SENTENCE,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = input_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_ALL,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineTextAtOffsetWithInvalidArguments) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
HRESULT hr = textarea_text->get_textAtOffset(
0, IA2_TEXT_BOUNDARY_CHAR, NULL, NULL, NULL);
EXPECT_EQ(E_INVALIDARG, hr);
// Test invalid offset.
LONG start_offset = 0;
LONG end_offset = 0;
base::win::ScopedBstr text;
LONG invalid_offset = -5;
hr = textarea_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_CHAR,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
invalid_offset = kContentsLength + 1;
hr = textarea_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_WORD,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(E_INVALIDARG, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
// According to the IA2 Spec, only line boundaries should succeed when
// the offset is one past the end of the text.
invalid_offset = kContentsLength;
hr = textarea_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_CHAR,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = textarea_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_WORD,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = textarea_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_SENTENCE,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = textarea_text->get_textAtOffset(
invalid_offset, IA2_TEXT_BOUNDARY_ALL,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
// The same behavior should be observed when the special offset
// IA2_TEXT_OFFSET_LENGTH is used.
hr = textarea_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_CHAR,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = textarea_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_WORD,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = textarea_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_SENTENCE,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
hr = textarea_text->get_textAtOffset(
IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_ALL,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
EXPECT_EQ(0, start_offset);
EXPECT_EQ(0, end_offset);
EXPECT_EQ(nullptr, static_cast<BSTR>(text));
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestTextAtOffsetWithBoundaryCharacter) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
for (LONG offset = 0; offset < kContentsLength; ++offset) {
std::wstring expected_text(1, kInputContents[offset]);
LONG expected_start_offset = offset;
LONG expected_end_offset = offset + 1;
CheckTextAtOffset(input_text, offset, IA2_TEXT_BOUNDARY_CHAR,
expected_start_offset, expected_end_offset, expected_text);
}
for (LONG offset = kContentsLength - 1; offset >= 0; --offset) {
std::wstring expected_text(1, kInputContents[offset]);
LONG expected_start_offset = offset;
LONG expected_end_offset = offset + 1;
CheckTextAtOffset(input_text, offset, IA2_TEXT_BOUNDARY_CHAR,
expected_start_offset, expected_end_offset, expected_text);
}
CheckTextAtOffset(input_text, IA2_TEXT_OFFSET_CARET, IA2_TEXT_BOUNDARY_CHAR,
kContentsLength - 1, kContentsLength, L".");
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineTextAtOffsetWithBoundaryCharacter) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
for (LONG offset = 0; offset < kContentsLength; ++offset) {
std::wstring expected_text(1, kTextareaContents[offset]);
LONG expected_start_offset = offset;
LONG expected_end_offset = offset + 1;
CheckTextAtOffset(textarea_text, offset, IA2_TEXT_BOUNDARY_CHAR,
expected_start_offset, expected_end_offset, expected_text);
}
for (LONG offset = kContentsLength - 1; offset >= 0; --offset) {
std::wstring expected_text(1, kTextareaContents[offset]);
LONG expected_start_offset = offset;
LONG expected_end_offset = offset + 1;
CheckTextAtOffset(textarea_text, offset, IA2_TEXT_BOUNDARY_CHAR,
expected_start_offset, expected_end_offset, expected_text);
}
CheckTextAtOffset(textarea_text, IA2_TEXT_OFFSET_CARET,
IA2_TEXT_BOUNDARY_CHAR, kContentsLength - 1,
kContentsLength, L".");
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestTextAtOffsetWithBoundaryWord) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
// Trailing punctuation should be included as part of the previous word.
CheckTextAtOffset(input_text, 0, IA2_TEXT_BOUNDARY_WORD,
0, 4, L"Moz/");
CheckTextAtOffset(input_text, 2, IA2_TEXT_BOUNDARY_WORD,
0, 4, L"Moz/");
// If the offset is at the punctuation, it should return
// the previous word.
CheckTextAtOffset(input_text, 3, IA2_TEXT_BOUNDARY_WORD,
0, 4, L"Moz/");
// Numbers with a decimal point ("." for U.S), should be treated as one word.
// Also, trailing punctuation that occurs after empty space should be part of
// the word. ("5.0 (" and not "5.0 ".)
CheckTextAtOffset(input_text, 4, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(input_text, 5, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(input_text, 6, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(input_text, 7, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
// Leading punctuation should not be included with the word after it.
CheckTextAtOffset(input_text, 8, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(input_text, 11, IA2_TEXT_BOUNDARY_WORD,
9, 12, L"ST ");
// Numbers separated from letters with trailing punctuation should
// be split into two words. Same for abreviations like "i.e.".
CheckTextAtOffset(input_text, 12, IA2_TEXT_BOUNDARY_WORD,
12, 14, L"6.");
CheckTextAtOffset(input_text, 15, IA2_TEXT_BOUNDARY_WORD,
14, 17, L"x; ");
// Words with numbers should be treated like ordinary words.
CheckTextAtOffset(input_text, 17, IA2_TEXT_BOUNDARY_WORD,
17, 24, L"WWW33) ");
CheckTextAtOffset(input_text, 23, IA2_TEXT_BOUNDARY_WORD,
17, 24, L"WWW33) ");
// Multiple trailing empty spaces should be part of the word preceding it.
CheckTextAtOffset(input_text, 28, IA2_TEXT_BOUNDARY_WORD,
24, 33, L"WebKit \"");
CheckTextAtOffset(input_text, 31, IA2_TEXT_BOUNDARY_WORD,
24, 33, L"WebKit \"");
CheckTextAtOffset(input_text, 32, IA2_TEXT_BOUNDARY_WORD,
24, 33, L"WebKit \"");
// Leading punctuation such as quotation marks should not be part of the word.
CheckTextAtOffset(input_text, 33, IA2_TEXT_BOUNDARY_WORD,
33, 40, L"KHTML, ");
CheckTextAtOffset(input_text, 38, IA2_TEXT_BOUNDARY_WORD,
33, 40, L"KHTML, ");
// Trailing final punctuation should be part of the last word.
CheckTextAtOffset(input_text, 41, IA2_TEXT_BOUNDARY_WORD, 40, kContentsLength,
L"like\".");
CheckTextAtOffset(input_text, 45, IA2_TEXT_BOUNDARY_WORD, 40, kContentsLength,
L"like\".");
// Test special offsets.
CheckTextAtOffset(input_text, IA2_TEXT_OFFSET_CARET, IA2_TEXT_BOUNDARY_WORD,
40, kContentsLength, L"like\".");
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineTextAtOffsetWithBoundaryWord) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
// Trailing punctuation should be included as part of the previous word.
CheckTextAtOffset(textarea_text, 0, IA2_TEXT_BOUNDARY_WORD,
0, 4, L"Moz/");
CheckTextAtOffset(textarea_text, 2, IA2_TEXT_BOUNDARY_WORD,
0, 4, L"Moz/");
// If the offset is at the punctuation, it should return
// the previous word.
CheckTextAtOffset(textarea_text, 3, IA2_TEXT_BOUNDARY_WORD,
0, 4, L"Moz/");
// Numbers with a decimal point ("." for U.S), should be treated as one word.
// Also, trailing punctuation that occurs after empty space should be part of
// the word. ("5.0 (" and not "5.0 ".)
CheckTextAtOffset(textarea_text, 4, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(textarea_text, 5, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(textarea_text, 6, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(textarea_text, 7, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
// Leading punctuation should not be included with the word after it.
CheckTextAtOffset(textarea_text, 8, IA2_TEXT_BOUNDARY_WORD,
4, 9, L"5.0 (");
CheckTextAtOffset(textarea_text, 11, IA2_TEXT_BOUNDARY_WORD,
9, 12, L"ST ");
// Numbers separated from letters with trailing punctuation should
// be split into two words. Same for abreviations like "i.e.".
CheckTextAtOffset(textarea_text, 12, IA2_TEXT_BOUNDARY_WORD,
12, 14, L"6.");
CheckTextAtOffset(textarea_text, 15, IA2_TEXT_BOUNDARY_WORD,
14, 17, L"x; ");
// Words with numbers should be treated like ordinary words.
CheckTextAtOffset(textarea_text, 17, IA2_TEXT_BOUNDARY_WORD,
17, 24, L"WWW33)\n");
CheckTextAtOffset(textarea_text, 23, IA2_TEXT_BOUNDARY_WORD,
17, 24, L"WWW33)\n");
// Multiple trailing empty spaces should be part of the word preceding it.
CheckTextAtOffset(textarea_text, 28, IA2_TEXT_BOUNDARY_WORD,
24, 33, L"WebKit \n\"");
CheckTextAtOffset(textarea_text, 31, IA2_TEXT_BOUNDARY_WORD,
24, 33, L"WebKit \n\"");
CheckTextAtOffset(textarea_text, 32, IA2_TEXT_BOUNDARY_WORD,
24, 33, L"WebKit \n\"");
// Leading punctuation such as quotation marks should not be part of the word.
CheckTextAtOffset(textarea_text, 33, IA2_TEXT_BOUNDARY_WORD,
33, 40, L"KHTML, ");
CheckTextAtOffset(textarea_text, 38, IA2_TEXT_BOUNDARY_WORD,
33, 40, L"KHTML, ");
// Trailing final punctuation should be part of the last word.
CheckTextAtOffset(textarea_text, 41, IA2_TEXT_BOUNDARY_WORD, 40,
kContentsLength, L"like\".");
CheckTextAtOffset(textarea_text, 45, IA2_TEXT_BOUNDARY_WORD, 40,
kContentsLength, L"like\".");
// Test special offsets.
CheckTextAtOffset(textarea_text, IA2_TEXT_OFFSET_CARET,
IA2_TEXT_BOUNDARY_WORD, 40, kContentsLength, L"like\".");
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestStaticTextAtOffsetWithBoundaryWord) {
Microsoft::WRL::ComPtr<IAccessibleText> paragraph_text;
SetUpSampleParagraph(&paragraph_text);
base::string16 embedded_character(
1, BrowserAccessibilityComWin::kEmbeddedCharacter);
std::vector<std::wstring> words;
words.push_back(L"Game ");
words.push_back(L"theory ");
words.push_back(L"is \"");
words.push_back(L"the ");
words.push_back(L"study ");
words.push_back(L"of ");
words.push_back(embedded_character);
words.push_back(L"of ");
words.push_back(L"conflict ");
words.push_back(L"and\n");
words.push_back(L"cooperation ");
words.push_back(L"between ");
words.push_back(L"intelligent ");
words.push_back(L"rational ");
words.push_back(L"decision-");
words.push_back(L"makers.\"");
// Try to retrieve one word after another.
LONG word_start_offset = 0;
for (auto& word : words) {
LONG word_end_offset = word_start_offset + word.size();
CheckTextAtOffset(paragraph_text, word_start_offset, IA2_TEXT_BOUNDARY_WORD,
word_start_offset, word_end_offset, word);
word_start_offset = word_end_offset;
// If the word boundary is inside an embedded object, |word_end_offset|
// should be one past the embedded object character. To get to the start of
// the next word, we have to skip the space between the embedded object
// character and the next word.
if (word == embedded_character)
++word_start_offset;
}
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestTextAtOffsetWithBoundarySentence) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
// Sentence navigation is not currently implemented.
LONG start_offset = 0;
LONG end_offset = 0;
base::win::ScopedBstr text;
HRESULT hr = input_text->get_textAtOffset(
5, IA2_TEXT_BOUNDARY_SENTENCE,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineTextAtOffsetWithBoundarySentence) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
// Sentence navigation is not currently implemented.
LONG start_offset = 0;
LONG end_offset = 0;
base::win::ScopedBstr text;
HRESULT hr = textarea_text->get_textAtOffset(
25, IA2_TEXT_BOUNDARY_SENTENCE,
&start_offset, &end_offset, text.Receive());
EXPECT_EQ(S_FALSE, hr);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestTextAtOffsetWithBoundaryLine) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
// Single line text fields should return the whole text.
CheckTextAtOffset(input_text, 0, IA2_TEXT_BOUNDARY_LINE, 0, kContentsLength,
base::SysUTF8ToWide(kInputContents));
// Test special offsets.
CheckTextAtOffset(input_text, IA2_TEXT_OFFSET_LENGTH, IA2_TEXT_BOUNDARY_LINE,
0, kContentsLength, base::SysUTF8ToWide(kInputContents));
CheckTextAtOffset(input_text, IA2_TEXT_OFFSET_CARET, IA2_TEXT_BOUNDARY_LINE,
0, kContentsLength, base::SysUTF8ToWide(kInputContents));
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineTextAtOffsetWithBoundaryLine) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
CheckTextAtOffset(textarea_text, 0, IA2_TEXT_BOUNDARY_LINE,
0, 24, L"Moz/5.0 (ST 6.x; WWW33)\n");
// If the offset is at the newline, return the line preceding it.
CheckTextAtOffset(textarea_text, 31, IA2_TEXT_BOUNDARY_LINE,
24, 32, L"WebKit \n");
// Last line does not have a trailing newline.
CheckTextAtOffset(textarea_text, 32, IA2_TEXT_BOUNDARY_LINE, 32,
kContentsLength, L"\"KHTML, like\".");
// An offset one past the last character should return the last line.
CheckTextAtOffset(textarea_text, kContentsLength, IA2_TEXT_BOUNDARY_LINE, 32,
kContentsLength, L"\"KHTML, like\".");
// Test special offsets.
CheckTextAtOffset(textarea_text, IA2_TEXT_OFFSET_LENGTH,
IA2_TEXT_BOUNDARY_LINE, 32, kContentsLength,
L"\"KHTML, like\".");
CheckTextAtOffset(textarea_text, IA2_TEXT_OFFSET_CARET,
IA2_TEXT_BOUNDARY_LINE, 32, kContentsLength,
L"\"KHTML, like\".");
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestParagraphTextAtOffsetWithBoundaryLine) {
Microsoft::WRL::ComPtr<IAccessibleText> paragraph_text;
SetUpSampleParagraph(&paragraph_text);
// There should be two lines in this paragraph.
const LONG newline_offset = 46;
LONG n_characters;
ASSERT_HRESULT_SUCCEEDED(paragraph_text->get_nCharacters(&n_characters));
ASSERT_LT(0, n_characters);
ASSERT_LT(newline_offset, n_characters);
for (LONG i = 0; i <= newline_offset; ++i) {
CheckTextAtOffset(
paragraph_text, i, IA2_TEXT_BOUNDARY_LINE, 0, newline_offset + 1,
L"Game theory is \"the study of \xFFFC of conflict and\n");
}
// For line boundaries, IA2 Spec allows for the offset to be equal to the
// text's length.
for (LONG i = newline_offset + 1; i <= n_characters; ++i) {
CheckTextAtOffset(
paragraph_text, i, IA2_TEXT_BOUNDARY_LINE, newline_offset + 1,
n_characters,
L"cooperation between intelligent rational decision-makers.\"");
}
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestTextAtOffsetWithBoundaryAll) {
Microsoft::WRL::ComPtr<IAccessibleText> input_text;
SetUpInputField(&input_text);
CheckTextAtOffset(input_text, 0, IA2_TEXT_BOUNDARY_ALL, 0, kContentsLength,
base::SysUTF8ToWide(kInputContents));
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestMultiLineTextAtOffsetWithBoundaryAll) {
Microsoft::WRL::ComPtr<IAccessibleText> textarea_text;
SetUpTextareaField(&textarea_text);
CheckTextAtOffset(textarea_text, kContentsLength - 1, IA2_TEXT_BOUNDARY_ALL,
0, kContentsLength, base::SysUTF8ToWide(kTextareaContents));
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestIAccessibleAction) {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<!DOCTYPE html>
<html>
<body>
<img src="" alt="image"
onclick="document.querySelector('img').alt = 'image2';">
</body>
</html>)HTML");
// Retrieve the IAccessible interface for the web page.
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
ASSERT_EQ(1u, document_children.size());
Microsoft::WRL::ComPtr<IAccessible2> div;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
div.GetAddressOf()));
std::vector<base::win::ScopedVariant> div_children =
GetAllAccessibleChildren(div.Get());
ASSERT_EQ(1u, div_children.size());
Microsoft::WRL::ComPtr<IAccessible2> image;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(div.Get(), div_children[0].AsInput()).Get(),
image.GetAddressOf()));
LONG image_role = 0;
ASSERT_HRESULT_SUCCEEDED(image->role(&image_role));
ASSERT_EQ(ROLE_SYSTEM_GRAPHIC, image_role);
Microsoft::WRL::ComPtr<IAccessibleAction> image_action;
ASSERT_HRESULT_SUCCEEDED(image.CopyTo(image_action.GetAddressOf()));
LONG n_actions = 0;
EXPECT_HRESULT_SUCCEEDED(image_action->nActions(&n_actions));
EXPECT_EQ(1, n_actions);
base::win::ScopedBstr action_name;
EXPECT_HRESULT_SUCCEEDED(image_action->get_name(0, action_name.Receive()));
EXPECT_EQ(L"click", std::wstring(action_name, action_name.Length()));
action_name.Release();
EXPECT_HRESULT_FAILED(image_action->get_name(1, action_name.Receive()));
EXPECT_EQ(nullptr, static_cast<BSTR>(action_name));
base::win::ScopedVariant childid_self(CHILDID_SELF);
base::win::ScopedBstr image_name;
EXPECT_HRESULT_SUCCEEDED(
image->get_accName(childid_self, image_name.Receive()));
EXPECT_EQ(L"image", std::wstring(image_name, image_name.Length()));
image_name.Release();
// Cllicking the image will change its name.
EXPECT_HRESULT_SUCCEEDED(image_action->doAction(0));
AccessibilityNotificationWaiter waiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kTextChanged);
waiter.WaitForNotification();
EXPECT_HRESULT_SUCCEEDED(
image->get_accName(childid_self, image_name.Receive()));
EXPECT_EQ(L"image2", std::wstring(image_name, image_name.Length()));
EXPECT_HRESULT_FAILED(image_action->doAction(1));
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, HasHWNDAfterNavigation) {
// This test simulates a scenario where RenderWidgetHostViewAura::SetSize
// is not called again after its window is added to the root window.
// Ensure that we still get a legacy HWND for accessibility.
ASSERT_TRUE(embedded_test_server()->Start());
WebContentsImpl* web_contents = static_cast<WebContentsImpl*>(
shell()->web_contents());
WebContentsView* web_contents_view = web_contents->GetView();
WebContentsViewAura* web_contents_view_aura =
static_cast<WebContentsViewAura*>(web_contents_view);
// Set a flag that will cause WebContentsViewAura to initialize a
// RenderWidgetHostViewAura with a null parent view.
web_contents_view_aura->set_init_rwhv_with_null_parent_for_testing(true);
// Navigate to a new page and wait for the accessibility tree to load.
AccessibilityNotificationWaiter waiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kLoadComplete);
NavigateToURL(shell(), embedded_test_server()->GetURL(
"/accessibility/html/article.html"));
waiter.WaitForNotification();
// At this point the root of the accessibility tree shouldn't have an HWND
// because we never gave a parent window to the RWHVA.
BrowserAccessibilityManagerWin* manager =
static_cast<BrowserAccessibilityManagerWin*>(
web_contents->GetRootBrowserAccessibilityManager());
ASSERT_EQ(nullptr, manager->GetParentHWND());
// Now add the RWHVA's window to the root window and ensure that we have
// an HWND for accessibility now.
web_contents_view->GetNativeView()->AddChild(
web_contents->GetRenderWidgetHostView()->GetNativeView());
ASSERT_NE(nullptr, manager->GetParentHWND());
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestAccNavigateInTables) {
ASSERT_TRUE(embedded_test_server()->Start());
AccessibilityNotificationWaiter waiter(shell()->web_contents(),
ui::kAXModeComplete,
ax::mojom::Event::kLoadComplete);
NavigateToURL(shell(), embedded_test_server()->GetURL(
"/accessibility/html/table-spans.html"));
waiter.WaitForNotification();
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
// There are two tables in this test file. Use only the first one.
ASSERT_EQ(2u, document_children.size());
Microsoft::WRL::ComPtr<IAccessible2> table;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
table.GetAddressOf()));
LONG role = 0;
ASSERT_HRESULT_SUCCEEDED(table->role(&role));
ASSERT_EQ(ROLE_SYSTEM_TABLE, role);
// Retrieve the first cell.
Microsoft::WRL::ComPtr<IAccessibleTable2> table2;
Microsoft::WRL::ComPtr<IUnknown> cell;
Microsoft::WRL::ComPtr<IAccessible2> cell1;
EXPECT_HRESULT_SUCCEEDED(table.CopyTo(table2.GetAddressOf()));
EXPECT_HRESULT_SUCCEEDED(table2->get_cellAt(0, 0, cell.GetAddressOf()));
EXPECT_HRESULT_SUCCEEDED(cell.CopyTo(cell1.GetAddressOf()));
base::win::ScopedBstr name;
base::win::ScopedVariant childid_self(CHILDID_SELF);
Microsoft::WRL::ComPtr<IAccessibleTableCell> accessible_cell;
LONG row_index = -1;
LONG column_index = -1;
EXPECT_HRESULT_SUCCEEDED(cell1->role(&role));
EXPECT_EQ(ROLE_SYSTEM_CELL, role);
EXPECT_HRESULT_SUCCEEDED(cell1->get_accName(childid_self, name.Receive()));
// EXPECT_STREQ(L"AD", name);
EXPECT_HRESULT_SUCCEEDED(cell1.CopyTo(accessible_cell.GetAddressOf()));
EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_rowIndex(&row_index));
EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_columnIndex(&column_index));
EXPECT_EQ(0, row_index);
EXPECT_EQ(0, column_index);
name.Reset();
accessible_cell.Reset();
// The first cell has a rowspan of 2, try navigating down and expect to get
// at the end of the table.
base::win::ScopedVariant variant;
EXPECT_HRESULT_SUCCEEDED(
cell1->accNavigate(NAVDIR_DOWN, childid_self, variant.Receive()));
ASSERT_EQ(VT_EMPTY, variant.type());
// Try navigating to the cell in the first row, 2nd column.
Microsoft::WRL::ComPtr<IAccessible2> cell2;
EXPECT_HRESULT_SUCCEEDED(
cell1->accNavigate(NAVDIR_RIGHT, childid_self, variant.Receive()));
ASSERT_NE(nullptr, V_DISPATCH(variant.AsInput()));
ASSERT_EQ(VT_DISPATCH, variant.type());
V_DISPATCH(variant.AsInput())->QueryInterface(cell2.GetAddressOf());
EXPECT_HRESULT_SUCCEEDED(cell2->role(&role));
EXPECT_EQ(ROLE_SYSTEM_CELL, role);
EXPECT_HRESULT_SUCCEEDED(cell2->get_accName(childid_self, name.Receive()));
// EXPECT_STREQ(L"BC", name);
EXPECT_HRESULT_SUCCEEDED(cell2.CopyTo(accessible_cell.GetAddressOf()));
EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_rowIndex(&row_index));
EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_columnIndex(&column_index));
EXPECT_EQ(0, row_index);
EXPECT_EQ(1, column_index);
variant.Reset();
name.Reset();
accessible_cell.Reset();
// Try navigating to the cell in the second row, 2nd column.
Microsoft::WRL::ComPtr<IAccessible2> cell3;
EXPECT_HRESULT_SUCCEEDED(
cell2->accNavigate(NAVDIR_DOWN, childid_self, variant.Receive()));
ASSERT_NE(nullptr, V_DISPATCH(variant.AsInput()));
ASSERT_EQ(VT_DISPATCH, variant.type());
V_DISPATCH(variant.AsInput())->QueryInterface(cell3.GetAddressOf());
EXPECT_HRESULT_SUCCEEDED(cell3->role(&role));
EXPECT_EQ(ROLE_SYSTEM_CELL, role);
EXPECT_HRESULT_SUCCEEDED(cell3->get_accName(childid_self, name.Receive()));
// EXPECT_STREQ(L"EF", name);
EXPECT_HRESULT_SUCCEEDED(cell3.CopyTo(accessible_cell.GetAddressOf()));
EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_rowIndex(&row_index));
EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_columnIndex(&column_index));
EXPECT_EQ(1, row_index);
EXPECT_EQ(1, column_index);
variant.Reset();
name.Reset();
accessible_cell.Reset();
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestScrollTo) {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<!DOCTYPE html>
<html>
<body>
<div style="height: 5000px;"></div>
<img src="" alt="Target1">
<div style="height: 5000px;"></div>
<img src="" alt="Target2">
<div style="height: 5000px;"></div>
</body>
</html>)HTML");
// Retrieve the IAccessible interface for the document node.
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
// Get the dimensions of the document.
LONG doc_x, doc_y, doc_width, doc_height;
base::win::ScopedVariant childid_self(CHILDID_SELF);
ASSERT_HRESULT_SUCCEEDED(document->accLocation(&doc_x, &doc_y, &doc_width,
&doc_height, childid_self));
// The document should only have two children, both with a role of GRAPHIC.
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
ASSERT_EQ(2u, document_children.size());
Microsoft::WRL::ComPtr<IAccessible2> target;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
target.GetAddressOf()));
LONG target_role = 0;
ASSERT_HRESULT_SUCCEEDED(target->role(&target_role));
ASSERT_EQ(ROLE_SYSTEM_GRAPHIC, target_role);
Microsoft::WRL::ComPtr<IAccessible2> target2;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[1].AsInput())
.Get(),
target2.GetAddressOf()));
LONG target2_role = 0;
ASSERT_HRESULT_SUCCEEDED(target2->role(&target2_role));
ASSERT_EQ(ROLE_SYSTEM_GRAPHIC, target2_role);
// Call scrollTo on the first target. Ensure it ends up very near the
// center of the window.
AccessibilityNotificationWaiter waiter(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kScrollPositionChanged);
ASSERT_HRESULT_SUCCEEDED(target->scrollTo(IA2_SCROLL_TYPE_ANYWHERE));
waiter.WaitForNotification();
// Don't assume anything about the font size or the exact centering
// behavior, just assert that the object is (roughly) centered by
// checking that its top coordinate is between 40% and 60% of the
// document's height.
LONG x, y, width, height;
ASSERT_HRESULT_SUCCEEDED(
target->accLocation(&x, &y, &width, &height, childid_self));
EXPECT_GT(y + height / 2, doc_y + 0.4 * doc_height);
EXPECT_LT(y + height / 2, doc_y + 0.6 * doc_height);
// Now call scrollTo on the second target. Ensure it ends up very near the
// center of the window.
AccessibilityNotificationWaiter waiter2(
shell()->web_contents(), ui::kAXModeComplete,
ax::mojom::Event::kScrollPositionChanged);
ASSERT_HRESULT_SUCCEEDED(target2->scrollTo(IA2_SCROLL_TYPE_ANYWHERE));
waiter2.WaitForNotification();
// Same as above, make sure it's roughly centered.
ASSERT_HRESULT_SUCCEEDED(
target2->accLocation(&x, &y, &width, &height, childid_self));
EXPECT_GT(y + height / 2, doc_y + 0.4 * doc_height);
EXPECT_LT(y + height / 2, doc_y + 0.6 * doc_height);
}
IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest,
TestPageIsAccessibleAfterCancellingReload) {
LoadInitialAccessibilityTreeFromHtml(
"data:text/html,"
"<script>"
"window.onbeforeunload = function () {"
" return '';"
"};"
"</script>"
"<input value='Test'>");
// When the before unload dialog shows, simulate the user clicking
// cancel on that dialog.
SetShouldProceedOnBeforeUnload(shell(), true, false);
// The beforeunload dialog won't be shown unless the page has at
// least one user gesture on it.
auto* main_frame = shell()->web_contents()->GetMainFrame();
main_frame->ExecuteJavaScriptWithUserGestureForTests(L"");
// Trigger a reload here, which will get cancelled.
shell()->web_contents()->GetController().Reload(ReloadType::NORMAL, false);
// Wait for the dialog to be triggered and then get cancelled.
WaitForAppModalDialog(shell());
// Now set up a listener for native Windows accessibility events.
// The bug here was that when a page is being reloaded or navigated
// away, we were suppressing accessibility events. This test ensures
// that if you cancel a reload, events are no longer suppressed.
WebContentsImpl* web_contents =
static_cast<WebContentsImpl*>(shell()->web_contents());
BrowserAccessibilityManager* manager =
web_contents->GetRootBrowserAccessibilityManager();
NativeWinEventWaiter win_event_waiter(
manager, "EVENT_OBJECT_FOCUS on <input> role=ROLE_SYSTEM_TEXT*");
// Get the root accessible element and its children.
Microsoft::WRL::ComPtr<IAccessible> document(GetRendererAccessible());
std::vector<base::win::ScopedVariant> document_children =
GetAllAccessibleChildren(document.Get());
ASSERT_EQ(1u, document_children.size());
// Get the only child of the root.
Microsoft::WRL::ComPtr<IAccessible2> group;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(document.Get(), document_children[0].AsInput())
.Get(),
group.GetAddressOf()));
LONG group_role = 0;
ASSERT_HRESULT_SUCCEEDED(group->role(&group_role));
ASSERT_EQ(IA2_ROLE_SECTION, group_role);
std::vector<base::win::ScopedVariant> group_children =
GetAllAccessibleChildren(group.Get());
ASSERT_EQ(2u, group_children.size());
// Get the second child of that group, the input element.
Microsoft::WRL::ComPtr<IAccessible2> input;
ASSERT_HRESULT_SUCCEEDED(QueryIAccessible2(
GetAccessibleFromVariant(group.Get(), group_children[1].AsInput()).Get(),
input.GetAddressOf()));
LONG input_role = 0;
ASSERT_HRESULT_SUCCEEDED(input->role(&input_role));
ASSERT_EQ(ROLE_SYSTEM_TEXT, input_role);
// Try to focus that input element.
base::win::ScopedVariant childid_self(CHILDID_SELF);
HRESULT hr = input->accSelect(SELFLAG_TAKEFOCUS, childid_self);
ASSERT_EQ(S_OK, hr);
// Ensure that we get the native focus event on that input element.
win_event_waiter.Wait();
}
} // namespace content