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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/accessibility/platform/browser_accessibility_manager.h"
#include "base/memory/raw_ptr.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/accessibility/accessibility_features.h"
#include "ui/accessibility/platform/ax_fragment_root_delegate_win.h"
#include "ui/accessibility/platform/ax_fragment_root_win.h"
#include "ui/accessibility/platform/ax_platform_node_win.h"
#include "ui/accessibility/platform/browser_accessibility.h"
#include "ui/accessibility/platform/test_ax_node_id_delegate.h"
#include "ui/accessibility/platform/test_ax_node_wrapper.h"
#include "ui/accessibility/platform/test_ax_platform_tree_manager_delegate.h"
namespace {
class TestFragmentRootDelegate : public ui::AXFragmentRootDelegateWin {
public:
TestFragmentRootDelegate(
ui::BrowserAccessibilityManager* browser_accessibility_manager)
: browser_accessibility_manager_(browser_accessibility_manager) {}
gfx::NativeViewAccessible GetChildOfAXFragmentRoot() override {
return browser_accessibility_manager_->GetBrowserAccessibilityRoot()
->GetNativeViewAccessible();
}
gfx::NativeViewAccessible GetParentOfAXFragmentRoot() override {
return nullptr;
}
bool IsAXFragmentRootAControlElement() override { return true; }
raw_ptr<ui::BrowserAccessibilityManager> browser_accessibility_manager_;
};
} // namespace
namespace ui {
class BrowserAccessibilityManagerWinTest : public testing::Test {
public:
BrowserAccessibilityManagerWinTest() = default;
BrowserAccessibilityManagerWinTest(
const BrowserAccessibilityManagerWinTest&) = delete;
BrowserAccessibilityManagerWinTest& operator=(
const BrowserAccessibilityManagerWinTest&) = delete;
~BrowserAccessibilityManagerWinTest() override = default;
protected:
std::unique_ptr<TestAXPlatformTreeManagerDelegate>
test_browser_accessibility_delegate_;
TestAXNodeIdDelegate node_id_delegate_;
private:
void SetUp() override;
// This is needed to prevent a DCHECK failure when OnAccessibilityApiUsage
// is called in BrowserAccessibility::GetRole.
base::test::SingleThreadTaskEnvironment task_environment_;
};
void BrowserAccessibilityManagerWinTest::SetUp() {
test_browser_accessibility_delegate_ =
std::make_unique<TestAXPlatformTreeManagerDelegate>();
}
TEST_F(BrowserAccessibilityManagerWinTest, DynamicallyAddedIFrame) {
base::test::ScopedFeatureList scoped_feature_list(::features::kUiaProvider);
AXNodeData root;
root.id = 1;
root.role = ax::mojom::Role::kRootWebArea;
test_browser_accessibility_delegate_->accelerated_widget_ =
gfx::kMockAcceleratedWidget;
std::unique_ptr<BrowserAccessibilityManager> root_manager(
BrowserAccessibilityManager::Create(
MakeAXTreeUpdateForTesting(root), node_id_delegate_,
test_browser_accessibility_delegate_.get()));
TestFragmentRootDelegate test_fragment_root_delegate(root_manager.get());
AXPlatformNode* root_document_root_node =
AXPlatformNode::FromNativeViewAccessible(
root_manager->GetBrowserAccessibilityRoot()
->GetNativeViewAccessible());
std::unique_ptr<AXPlatformNodeDelegate> fragment_root =
std::make_unique<AXFragmentRootWin>(gfx::kMockAcceleratedWidget,
&test_fragment_root_delegate);
EXPECT_EQ(fragment_root->GetChildCount(), 1u);
EXPECT_EQ(fragment_root->ChildAtIndex(0),
root_document_root_node->GetNativeViewAccessible());
// Simulate the case where an iframe is created but the update to add the
// element to the root frame's document has not yet come through.
std::unique_ptr<TestAXPlatformTreeManagerDelegate> iframe_delegate =
std::make_unique<TestAXPlatformTreeManagerDelegate>();
iframe_delegate->is_root_frame_ = false;
iframe_delegate->accelerated_widget_ = gfx::kMockAcceleratedWidget;
std::unique_ptr<BrowserAccessibilityManager> iframe_manager(
BrowserAccessibilityManager::Create(MakeAXTreeUpdateForTesting(root),
node_id_delegate_,
iframe_delegate.get()));
// The new frame is not a root frame, so the fragment root's lone child should
// still be the same as before.
EXPECT_EQ(fragment_root->GetChildCount(), 1u);
EXPECT_EQ(fragment_root->ChildAtIndex(0),
root_document_root_node->GetNativeViewAccessible());
}
TEST_F(BrowserAccessibilityManagerWinTest, ChildTree) {
base::test::ScopedFeatureList scoped_feature_list(::features::kUiaProvider);
AXNodeData child_tree_root;
child_tree_root.id = 1;
child_tree_root.role = ax::mojom::Role::kRootWebArea;
AXTreeUpdate child_tree_update = MakeAXTreeUpdateForTesting(child_tree_root);
AXNodeData parent_tree_root;
parent_tree_root.id = 1;
parent_tree_root.role = ax::mojom::Role::kRootWebArea;
parent_tree_root.AddChildTreeId(child_tree_update.tree_data.tree_id);
AXTreeUpdate parent_tree_update =
MakeAXTreeUpdateForTesting(parent_tree_root);
child_tree_update.tree_data.parent_tree_id =
parent_tree_update.tree_data.tree_id;
test_browser_accessibility_delegate_->accelerated_widget_ =
gfx::kMockAcceleratedWidget;
std::unique_ptr<BrowserAccessibilityManager> parent_manager(
BrowserAccessibilityManager::Create(
parent_tree_update, node_id_delegate_,
test_browser_accessibility_delegate_.get()));
TestFragmentRootDelegate test_fragment_root_delegate(parent_manager.get());
AXPlatformNode* root_document_root_node =
AXPlatformNode::FromNativeViewAccessible(
parent_manager->GetBrowserAccessibilityRoot()
->GetNativeViewAccessible());
std::unique_ptr<AXPlatformNodeDelegate> fragment_root =
std::make_unique<AXFragmentRootWin>(gfx::kMockAcceleratedWidget,
&test_fragment_root_delegate);
EXPECT_EQ(fragment_root->GetChildCount(), 1u);
EXPECT_EQ(fragment_root->ChildAtIndex(0),
root_document_root_node->GetNativeViewAccessible());
// Add the child tree.
std::unique_ptr<TestAXPlatformTreeManagerDelegate> child_tree_delegate =
std::make_unique<TestAXPlatformTreeManagerDelegate>();
child_tree_delegate->is_root_frame_ = false;
child_tree_delegate->accelerated_widget_ = gfx::kMockAcceleratedWidget;
std::unique_ptr<BrowserAccessibilityManager> child_manager(
BrowserAccessibilityManager::Create(child_tree_update, node_id_delegate_,
child_tree_delegate.get()));
// The fragment root's lone child should still be the same as before.
EXPECT_EQ(fragment_root->GetChildCount(), 1u);
EXPECT_EQ(fragment_root->ChildAtIndex(0),
root_document_root_node->GetNativeViewAccessible());
}
} // namespace ui
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