1 // Copyright (c) 2020 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/accessibility/browser_accessibility_manager_auralinux.h"
6
7 #include <atk/atk.h>
8
9 #include "content/browser/accessibility/browser_accessibility.h"
10 #include "content/browser/accessibility/browser_accessibility_manager.h"
11 #include "content/browser/accessibility/test_browser_accessibility_delegate.h"
12 #include "testing/gtest/include/gtest/gtest.h"
13 #include "ui/accessibility/ax_enums.mojom.h"
14 #include "ui/accessibility/platform/ax_platform_node.h"
15 #include "ui/accessibility/platform/ax_platform_node_auralinux.h"
16
17 namespace content {
18
19 class BrowserAccessibilityManagerAuraLinuxTest : public testing::Test {
20 public:
21 BrowserAccessibilityManagerAuraLinuxTest() = default;
22 ~BrowserAccessibilityManagerAuraLinuxTest() override = default;
23
24 protected:
25 std::unique_ptr<TestBrowserAccessibilityDelegate>
26 test_browser_accessibility_delegate_;
27
28 private:
29 void SetUp() override;
30
31 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManagerAuraLinuxTest);
32 };
33
SetUp()34 void BrowserAccessibilityManagerAuraLinuxTest::SetUp() {
35 ui::AXPlatformNode::NotifyAddAXModeFlags(ui::kAXModeComplete);
36 test_browser_accessibility_delegate_ =
37 std::make_unique<TestBrowserAccessibilityDelegate>();
38 }
39
TEST_F(BrowserAccessibilityManagerAuraLinuxTest,TestEmitChildrenChanged)40 TEST_F(BrowserAccessibilityManagerAuraLinuxTest, TestEmitChildrenChanged) {
41 ui::AXTreeUpdate initial_state;
42 ui::AXTreeID tree_id = ui::AXTreeID::CreateNewAXTreeID();
43 initial_state.tree_data.tree_id = tree_id;
44 initial_state.has_tree_data = true;
45 initial_state.tree_data.loaded = true;
46 initial_state.root_id = 1;
47 initial_state.nodes.resize(3);
48 initial_state.nodes[0].id = 1;
49 initial_state.nodes[0].child_ids = {2};
50 initial_state.nodes[0].role = ax::mojom::Role::kRootWebArea;
51 initial_state.nodes[1].id = 2;
52 initial_state.nodes[1].child_ids = {3};
53 initial_state.nodes[1].role = ax::mojom::Role::kStaticText;
54 initial_state.nodes[2].id = 3;
55 initial_state.nodes[2].role = ax::mojom::Role::kInlineTextBox;
56
57 std::unique_ptr<BrowserAccessibilityManager> manager(
58 BrowserAccessibilityManager::Create(
59 initial_state, test_browser_accessibility_delegate_.get()));
60
61 AtkObject* atk_root = manager->GetRoot()->GetNativeViewAccessible();
62 ui::AXPlatformNodeAuraLinux* root_document_root_node =
63 static_cast<ui::AXPlatformNodeAuraLinux*>(
64 ui::AXPlatformNode::FromNativeViewAccessible(atk_root));
65 g_signal_connect(atk_root, "children-changed::remove",
66 G_CALLBACK(+[](AtkObject* obj, int index, gpointer child,
67 gpointer user_data) {
68 EXPECT_EQ(ATK_ROLE_DOCUMENT_WEB, atk_object_get_role(obj));
69 }),
70 nullptr);
71 g_signal_connect(atk_root, "children-changed::add",
72 G_CALLBACK(+[](AtkObject* obj, int index, gpointer child,
73 gpointer user_data) {
74 EXPECT_EQ(ATK_ROLE_DOCUMENT_WEB, atk_object_get_role(obj));
75 }),
76 nullptr);
77 BrowserAccessibility* static_text_accessible =
78 manager->GetRoot()->PlatformGetChild(0);
79 // StaticText node triggers 'children-changed' event to the parent,
80 // ATK_ROLE_DOCUMENT_WEB, when subtree is changed.
81 BrowserAccessibilityManagerAuraLinux* aura_linux_manager =
82 manager->ToBrowserAccessibilityManagerAuraLinux();
83 aura_linux_manager->FireSubtreeCreatedEvent(static_text_accessible);
84 aura_linux_manager->OnSubtreeWillBeDeleted(manager->ax_tree(),
85 static_text_accessible->node());
86
87 AtkObject* atk_object = root_document_root_node->ChildAtIndex(0);
88 g_signal_connect(atk_object, "children-changed::remove",
89 G_CALLBACK(+[](AtkObject*, int index, gpointer child,
90 gpointer user_data) {
91 EXPECT_TRUE(false) << "should not be reached.";
92 }),
93 nullptr);
94 g_signal_connect(atk_object, "children-changed::add",
95 G_CALLBACK(+[](AtkObject* obj, int index, gpointer child,
96 gpointer user_data) {
97 EXPECT_TRUE(false) << "should not be reached.";
98 }),
99 nullptr);
100
101 BrowserAccessibility* inline_text_accessible =
102 static_text_accessible->PlatformGetChild(0);
103 // PlatformLeaf node such as InlineText should not trigger
104 // 'children-changed' event to the parent when subtree is changed.
105 aura_linux_manager->FireSubtreeCreatedEvent(inline_text_accessible);
106 aura_linux_manager->OnSubtreeWillBeDeleted(manager->ax_tree(),
107 inline_text_accessible->node());
108 }
109
110 } // namespace content