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// Copyright 2013 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 <oleacc.h>
#include "base/win/scoped_bstr.h"
#include "base/win/scoped_comptr.h"
#include "base/win/scoped_variant.h"
#include "third_party/iaccessible2/ia2_api_all.h"
#include "ui/views/accessibility/native_view_accessibility.h"
#include "ui/views/controls/textfield/textfield.h"
#include "ui/views/test/views_test_base.h"
using base::win::ScopedBstr;
using base::win::ScopedComPtr;
using base::win::ScopedVariant;
namespace views {
namespace test {
class NativeViewAcccessibilityWinTest : public ViewsTestBase {
public:
NativeViewAcccessibilityWinTest() {}
~NativeViewAcccessibilityWinTest() override {}
protected:
void GetIAccessible2InterfaceForView(View* view, IAccessible2_2** result) {
ScopedComPtr<IAccessible> view_accessible(
view->GetNativeViewAccessible());
ScopedComPtr<IServiceProvider> service_provider;
ASSERT_EQ(S_OK, view_accessible.QueryInterface(service_provider.Receive()));
ASSERT_EQ(S_OK,
service_provider->QueryService(IID_IAccessible2_2, result));
}
};
TEST_F(NativeViewAcccessibilityWinTest, TextfieldAccessibility) {
Widget widget;
Widget::InitParams init_params =
CreateParams(Widget::InitParams::TYPE_POPUP);
init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
widget.Init(init_params);
View* content = new View;
widget.SetContentsView(content);
Textfield* textfield = new Textfield;
textfield->SetAccessibleName(L"Name");
textfield->SetText(L"Value");
content->AddChildView(textfield);
ScopedComPtr<IAccessible> content_accessible(
content->GetNativeViewAccessible());
LONG child_count = 0;
ASSERT_EQ(S_OK, content_accessible->get_accChildCount(&child_count));
ASSERT_EQ(1L, child_count);
ScopedComPtr<IDispatch> textfield_dispatch;
ScopedComPtr<IAccessible> textfield_accessible;
ScopedVariant child_index(1);
ASSERT_EQ(S_OK, content_accessible->get_accChild(
child_index, textfield_dispatch.Receive()));
ASSERT_EQ(S_OK, textfield_dispatch.QueryInterface(
textfield_accessible.Receive()));
ScopedBstr name;
ScopedVariant childid_self(CHILDID_SELF);
ASSERT_EQ(S_OK, textfield_accessible->get_accName(
childid_self, name.Receive()));
ASSERT_STREQ(L"Name", name);
ScopedBstr value;
ASSERT_EQ(S_OK, textfield_accessible->get_accValue(
childid_self, value.Receive()));
ASSERT_STREQ(L"Value", value);
ScopedBstr new_value(L"New value");
ASSERT_EQ(S_OK, textfield_accessible->put_accValue(childid_self, new_value));
ASSERT_STREQ(L"New value", textfield->text().c_str());
}
TEST_F(NativeViewAcccessibilityWinTest, AuraOwnedWidgets) {
Widget widget;
Widget::InitParams init_params =
CreateParams(Widget::InitParams::TYPE_WINDOW);
init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
widget.Init(init_params);
ScopedComPtr<IAccessible> root_view_accessible(
widget.GetRootView()->GetNativeViewAccessible());
LONG child_count = 0;
ASSERT_EQ(S_OK, root_view_accessible->get_accChildCount(&child_count));
ASSERT_EQ(1L, child_count);
ScopedComPtr<IDispatch> child_view_dispatch;
ScopedComPtr<IAccessible> child_view_accessible;
ScopedVariant child_index_1(1);
ASSERT_EQ(S_OK, root_view_accessible->get_accChild(
child_index_1, child_view_dispatch.Receive()));
ASSERT_EQ(S_OK, child_view_dispatch.QueryInterface(
child_view_accessible.Receive()));
Widget owned_widget;
Widget::InitParams owned_init_params =
CreateParams(Widget::InitParams::TYPE_POPUP);
owned_init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
owned_init_params.parent = widget.GetNativeView();
owned_widget.Init(owned_init_params);
owned_widget.Show();
ASSERT_EQ(S_OK, root_view_accessible->get_accChildCount(&child_count));
ASSERT_EQ(2L, child_count);
ScopedComPtr<IDispatch> child_widget_dispatch;
ScopedComPtr<IAccessible> child_widget_accessible;
ScopedVariant child_index_2(2);
ASSERT_EQ(S_OK, root_view_accessible->get_accChild(
child_index_2, child_widget_dispatch.Receive()));
ASSERT_EQ(S_OK, child_widget_dispatch.QueryInterface(
child_widget_accessible.Receive()));
ScopedComPtr<IDispatch> child_widget_sibling_dispatch;
ScopedComPtr<IAccessible> child_widget_sibling_accessible;
ScopedVariant childid_self(CHILDID_SELF);
ScopedVariant result;
ASSERT_EQ(S_OK, child_widget_accessible->accNavigate(
NAVDIR_PREVIOUS, childid_self, result.Receive()));
ASSERT_EQ(VT_DISPATCH, V_VT(result.ptr()));
child_widget_sibling_dispatch = V_DISPATCH(result.ptr());
ASSERT_EQ(S_OK, child_widget_sibling_dispatch.QueryInterface(
child_widget_sibling_accessible.Receive()));
ASSERT_EQ(child_view_accessible.get(), child_widget_sibling_accessible.get());
ScopedComPtr<IDispatch> child_widget_parent_dispatch;
ScopedComPtr<IAccessible> child_widget_parent_accessible;
ASSERT_EQ(S_OK, child_widget_accessible->get_accParent(
child_widget_parent_dispatch.Receive()));
ASSERT_EQ(S_OK, child_widget_parent_dispatch.QueryInterface(
child_widget_parent_accessible.Receive()));
ASSERT_EQ(root_view_accessible.get(), child_widget_parent_accessible.get());
}
// Flaky on Windows: https://crbug.com/461837.
TEST_F(NativeViewAcccessibilityWinTest, DISABLED_RetrieveAllAlerts) {
Widget widget;
Widget::InitParams init_params =
CreateParams(Widget::InitParams::TYPE_POPUP);
init_params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
widget.Init(init_params);
View* content = new View;
widget.SetContentsView(content);
View* infobar = new View;
content->AddChildView(infobar);
View* infobar2 = new View;
content->AddChildView(infobar2);
View* root_view = content->parent();
ASSERT_EQ(NULL, root_view->parent());
ScopedComPtr<IAccessible2_2> root_view_accessible;
GetIAccessible2InterfaceForView(root_view, root_view_accessible.Receive());
ScopedComPtr<IAccessible2_2> infobar_accessible;
GetIAccessible2InterfaceForView(infobar, infobar_accessible.Receive());
ScopedComPtr<IAccessible2_2> infobar2_accessible;
GetIAccessible2InterfaceForView(infobar2, infobar2_accessible.Receive());
// Initially, there are no alerts
ScopedBstr alerts_bstr(L"alerts");
IUnknown** targets;
long n_targets;
ASSERT_EQ(S_FALSE, root_view_accessible->get_relationTargetsOfType(
alerts_bstr, 0, &targets, &n_targets));
ASSERT_EQ(0, n_targets);
// Fire alert events on the infobars.
infobar->NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
infobar2->NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
// Now calling get_relationTargetsOfType should retrieve the alerts.
ASSERT_EQ(S_OK, root_view_accessible->get_relationTargetsOfType(
alerts_bstr, 0, &targets, &n_targets));
ASSERT_EQ(2, n_targets);
ASSERT_TRUE(infobar_accessible.IsSameObject(targets[0]));
ASSERT_TRUE(infobar2_accessible.IsSameObject(targets[1]));
CoTaskMemFree(targets);
// If we set max_targets to 1, we should only get the first one.
ASSERT_EQ(S_OK, root_view_accessible->get_relationTargetsOfType(
alerts_bstr, 1, &targets, &n_targets));
ASSERT_EQ(1, n_targets);
ASSERT_TRUE(infobar_accessible.IsSameObject(targets[0]));
CoTaskMemFree(targets);
// If we delete the first view, we should only get the second one now.
delete infobar;
ASSERT_EQ(S_OK, root_view_accessible->get_relationTargetsOfType(
alerts_bstr, 0, &targets, &n_targets));
ASSERT_EQ(1, n_targets);
ASSERT_TRUE(infobar2_accessible.IsSameObject(targets[0]));
CoTaskMemFree(targets);
}
} // namespace test
} // namespace views
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