1 // Copyright (c) 2013 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 "chrome/browser/chromeos/accessibility/magnification_manager.h"
6
7 #include "ash/magnifier/magnifier_constants.h"
8 #include "ash/test/ash_test_base.h"
9 #include "base/prefs/pref_service.h"
10 #include "chrome/browser/chrome_notification_types.h"
11 #include "chrome/common/pref_names.h"
12 #include "chrome/test/base/testing_profile.h"
13 #include "content/public/browser/notification_service.h"
14 #include "testing/gtest/include/gtest/gtest.h"
15
16 namespace chromeos {
17 namespace {
18
19 class MockMagnificationObserver : public content::NotificationObserver {
20 public:
MockMagnificationObserver()21 MockMagnificationObserver() : observed_(false),
22 observed_enabled_(false),
23 observed_type_(ash::kDefaultMagnifierType) {
24 registrar_.Add(
25 this,
26 chrome::NOTIFICATION_CROS_ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER,
27 content::NotificationService::AllSources());
28 }
29
observed() const30 bool observed() const { return observed_; }
observed_enabled() const31 bool observed_enabled() const { return observed_enabled_; }
observed_type() const32 ash::MagnifierType observed_type() const { return observed_type_; }
33
reset()34 void reset() { observed_ = false; }
35
36 private:
37 // content::NotificationObserver implimentation:
Observe(int type,const content::NotificationSource & source,const content::NotificationDetails & details)38 virtual void Observe(int type,
39 const content::NotificationSource& source,
40 const content::NotificationDetails& details) OVERRIDE {
41 switch (type) {
42 case chrome::NOTIFICATION_CROS_ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER:
43 AccessibilityStatusEventDetails* accessibility_status =
44 content::Details<AccessibilityStatusEventDetails>(details).ptr();
45
46 observed_ = true;
47 observed_enabled_ = accessibility_status->enabled;
48 observed_type_ = accessibility_status->magnifier_type;
49 }
50 }
51
52 bool observed_;
53 bool observed_enabled_;
54 ash::MagnifierType observed_type_;
55
56 content::NotificationRegistrar registrar_;
57 };
58
EnableMagnifier()59 void EnableMagnifier() {
60 return MagnificationManager::Get()->SetMagnifierEnabled(true);
61 }
62
DisableMagnifier()63 void DisableMagnifier() {
64 return MagnificationManager::Get()->SetMagnifierEnabled(false);
65 }
66
IsMagnifierEnabled()67 bool IsMagnifierEnabled() {
68 return MagnificationManager::Get()->IsMagnifierEnabled();
69 }
70
GetMagnifierType()71 ash::MagnifierType GetMagnifierType() {
72 return MagnificationManager::Get()->GetMagnifierType();
73 }
74
SetMagnifierType(ash::MagnifierType type)75 void SetMagnifierType(ash::MagnifierType type) {
76 return MagnificationManager::Get()->SetMagnifierType(type);
77 }
78
79 } // namespace
80
81 class MagnificationManagerTest : public ash::test::AshTestBase {
82 public:
MagnificationManagerTest()83 MagnificationManagerTest() {
84 }
85
SetUp()86 virtual void SetUp() OVERRIDE {
87 ash::test::AshTestBase::SetUp();
88 MagnificationManager::Initialize();
89 ASSERT_TRUE(MagnificationManager::Get());
90 MagnificationManager::Get()->SetProfileForTest(&profile_);
91 }
92
TearDown()93 virtual void TearDown() OVERRIDE {
94 MagnificationManager::Shutdown();
95 ash::test::AshTestBase::TearDown();
96 }
97
98 TestingProfile profile_;
99 };
100
TEST_F(MagnificationManagerTest,MagnificationObserver)101 TEST_F(MagnificationManagerTest, MagnificationObserver) {
102 MockMagnificationObserver observer;
103
104 EXPECT_FALSE(observer.observed());
105
106 // Set full screen magnifier, and confirm the observer is called.
107 EnableMagnifier();
108 SetMagnifierType(ash::MAGNIFIER_FULL);
109 EXPECT_TRUE(observer.observed());
110 EXPECT_TRUE(observer.observed_enabled());
111 EXPECT_EQ(observer.observed_type(), ash::MAGNIFIER_FULL);
112 EXPECT_EQ(GetMagnifierType(), ash::MAGNIFIER_FULL);
113 observer.reset();
114
115 // Set full screen magnifier again, and confirm the observer is not called.
116 SetMagnifierType(ash::MAGNIFIER_FULL);
117 EXPECT_FALSE(observer.observed());
118 EXPECT_EQ(GetMagnifierType(), ash::MAGNIFIER_FULL);
119 observer.reset();
120 }
121
TEST_F(MagnificationManagerTest,ChangeType)122 TEST_F(MagnificationManagerTest, ChangeType) {
123 // Set full screen magnifier, and confirm the status is set successfully.
124 EnableMagnifier();
125 SetMagnifierType(ash::MAGNIFIER_FULL);
126 EXPECT_TRUE(IsMagnifierEnabled());
127 EXPECT_EQ(GetMagnifierType(), ash::MAGNIFIER_FULL);
128
129 // Set partial screen magnifier, and confirm the change is ignored.
130 SetMagnifierType(ash::MAGNIFIER_PARTIAL);
131 EXPECT_TRUE(IsMagnifierEnabled());
132 EXPECT_EQ(GetMagnifierType(), ash::MAGNIFIER_FULL);
133
134 // Disables magnifier, and confirm the status is set successfully.
135 DisableMagnifier();
136 EXPECT_FALSE(IsMagnifierEnabled());
137 EXPECT_EQ(GetMagnifierType(), ash::MAGNIFIER_FULL);
138 }
139
140 } // namespace chromeos
141