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1 // Copyright 2015 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/arc/arc_settings_bridge.h" | |
6 | |
7 #include <algorithm> | |
8 | |
9 #include "base/json/json_writer.h" | |
10 #include "base/prefs/pref_service.h" | |
11 #include "base/strings/stringprintf.h" | |
12 #include "chrome/browser/profiles/profile_manager.h" | |
13 #include "chrome/common/pref_names.h" | |
14 #include "components/arc/common/settings.mojom.h" | |
15 | |
16 using ::chromeos::system::TimezoneSettings; | |
17 | |
18 namespace arc { | |
19 | |
20 namespace fontsizes { | |
21 | |
22 double ConvertFontSizeChromeToAndroid(int default_size, | |
23 int default_fixed_size, | |
24 int minimum_size) { | |
25 // kWebKitDefaultFixedFontSize is automatically set to be 3 pixels smaller | |
26 // than kWebKitDefaultFontSize when Chrome's settings page's main font | |
27 // dropdown control is adjusted. If the user specifically sets a higher | |
28 // fixed font size we will want to take into account the adjustment. | |
29 default_fixed_size += 3; | |
30 int max_chrome_size = | |
31 std::max(std::max(default_fixed_size, default_size), minimum_size); | |
32 | |
33 double android_scale = kAndroidFontScaleSmall; | |
34 if (max_chrome_size >= kChromeFontSizeVeryLarge) { | |
35 android_scale = kAndroidFontScaleHuge; | |
36 } else if (max_chrome_size >= kChromeFontSizeLarge) { | |
37 android_scale = kAndroidFontScaleLarge; | |
38 } else if (max_chrome_size >= kChromeFontSizeNormal) { | |
39 android_scale = kAndroidFontScaleNormal; | |
40 } | |
41 | |
42 return android_scale; | |
43 } | |
44 | |
45 } // namespace fontsizes | |
46 | |
47 ArcSettingsBridge::ArcSettingsBridge(ArcBridgeService* bridge_service) | |
48 : ArcService(bridge_service) { | |
49 arc_bridge_service()->AddObserver(this); | |
50 } | |
51 | |
52 ArcSettingsBridge::~ArcSettingsBridge() { | |
53 arc_bridge_service()->RemoveObserver(this); | |
54 } | |
55 | |
56 void ArcSettingsBridge::StartObservingSettingsChanges() { | |
57 Profile* profile = ProfileManager::GetActiveUserProfile(); | |
58 registrar_.Init(profile->GetPrefs()); | |
59 | |
60 AddPrefToObserve(prefs::kWebKitDefaultFixedFontSize); | |
61 AddPrefToObserve(prefs::kWebKitDefaultFontSize); | |
62 AddPrefToObserve(prefs::kWebKitMinimumFontSize); | |
63 AddPrefToObserve(prefs::kAccessibilitySpokenFeedbackEnabled); | |
64 | |
65 TimezoneSettings::GetInstance()->AddObserver(this); | |
66 } | |
67 | |
68 void ArcSettingsBridge::SyncAllPrefs() const { | |
69 SyncFontSize(); | |
70 SyncLocale(); | |
71 SyncSpokenFeedbackEnabled(); | |
72 SyncTimeZone(); | |
73 } | |
74 | |
75 void ArcSettingsBridge::StopObservingSettingsChanges() { | |
76 registrar_.RemoveAll(); | |
77 | |
78 TimezoneSettings::GetInstance()->RemoveObserver(this); | |
79 } | |
80 | |
81 void ArcSettingsBridge::AddPrefToObserve(const std::string& pref_name) { | |
82 registrar_.Add(pref_name, base::Bind(&ArcSettingsBridge::OnPrefChanged, | |
83 base::Unretained(this))); | |
84 } | |
85 | |
86 void ArcSettingsBridge::OnPrefChanged(const std::string& pref_name) const { | |
87 if (pref_name == prefs::kAccessibilitySpokenFeedbackEnabled) { | |
88 SyncSpokenFeedbackEnabled(); | |
89 } else if (pref_name == prefs::kWebKitDefaultFixedFontSize || | |
90 pref_name == prefs::kWebKitDefaultFontSize || | |
91 pref_name == prefs::kWebKitMinimumFontSize) { | |
92 SyncFontSize(); | |
93 } else { | |
94 LOG(ERROR) << "Unknown pref changed."; | |
95 } | |
96 } | |
97 | |
98 void ArcSettingsBridge::OnStateChanged(ArcBridgeService::State state) { | |
99 // ArcBridgeService::State::READY is emitted before ArcSettings app is ready | |
100 // to send broadcasts. Instead we wait for the SettingsInstance to be ready. | |
101 if (state == ArcBridgeService::State::STOPPING) { | |
102 StopObservingSettingsChanges(); | |
103 } | |
104 } | |
105 | |
106 void ArcSettingsBridge::OnSettingsInstanceReady() { | |
107 StartObservingSettingsChanges(); | |
108 SyncAllPrefs(); | |
109 } | |
110 | |
111 void ArcSettingsBridge::TimezoneChanged(const icu::TimeZone& timezone) { | |
112 SyncTimeZone(); | |
113 } | |
114 | |
115 int ArcSettingsBridge::GetIntegerPref(const std::string& pref_name) const { | |
116 const PrefService::Preference* pref = | |
117 registrar_.prefs()->FindPreference(pref_name); | |
118 DCHECK(pref); | |
119 int val = -1; | |
120 bool value_exists = pref->GetValue()->GetAsInteger(&val); | |
121 DCHECK(value_exists); | |
122 return val; | |
123 } | |
124 | |
125 void ArcSettingsBridge::SyncFontSize() const { | |
126 int default_size = GetIntegerPref(prefs::kWebKitDefaultFontSize); | |
127 int default_fixed_size = GetIntegerPref(prefs::kWebKitDefaultFixedFontSize); | |
128 int minimum_size = GetIntegerPref(prefs::kWebKitMinimumFontSize); | |
129 | |
130 double android_scale = fontsizes::ConvertFontSizeChromeToAndroid( | |
131 default_size, default_fixed_size, minimum_size); | |
132 | |
133 base::DictionaryValue extras; | |
134 extras.SetDouble("scale", android_scale); | |
135 SendSettingsBroadcast("org.chromium.arc.settings.SET_FONT_SCALE", extras); | |
136 } | |
137 | |
138 void ArcSettingsBridge::SyncSpokenFeedbackEnabled() const { | |
139 const PrefService::Preference* pref = registrar_.prefs()->FindPreference( | |
140 prefs::kAccessibilitySpokenFeedbackEnabled); | |
141 DCHECK(pref); | |
142 bool enabled = false; | |
143 bool value_exists = pref->GetValue()->GetAsBoolean(&enabled); | |
144 DCHECK(value_exists); | |
145 base::DictionaryValue extras; | |
146 extras.SetBoolean("enabled", enabled); | |
147 SendSettingsBroadcast("org.chromium.arc.settings.SET_SPOKEN_FEEDBACK_ENABLED", | |
148 extras); | |
149 } | |
150 | |
151 void ArcSettingsBridge::SyncLocale() const { | |
152 const PrefService::Preference* pref = | |
153 registrar_.prefs()->FindPreference(prefs::kApplicationLocale); | |
154 DCHECK(pref); | |
155 std::string locale; | |
156 bool value_exists = pref->GetValue()->GetAsString(&locale); | |
157 DCHECK(value_exists); | |
158 base::DictionaryValue extras; | |
159 extras.SetString("locale", locale); | |
160 SendSettingsBroadcast("org.chromium.arc.settings.SET_LOCALE", extras); | |
161 } | |
162 | |
163 void ArcSettingsBridge::SyncTimeZone() const { | |
164 TimezoneSettings* timezone_settings = TimezoneSettings::GetInstance(); | |
165 base::string16 timezoneID = timezone_settings->GetCurrentTimezoneID(); | |
166 base::DictionaryValue extras; | |
167 extras.SetString("olsonTimeZone", timezoneID); | |
168 SendSettingsBroadcast("org.chromium.arc.settings.SET_TIME_ZONE", extras); | |
169 } | |
170 | |
171 void ArcSettingsBridge::SendSettingsBroadcast( | |
172 const std::string& action, | |
173 const base::DictionaryValue& extras) const { | |
174 SettingsInstance* settings_instance = | |
175 arc_bridge_service()->settings_instance(); | |
176 if (!settings_instance) { | |
177 LOG(ERROR) << "Bridge service is not ready."; | |
178 return; | |
179 } | |
180 | |
181 std::string extras_json; | |
182 bool write_success = base::JSONWriter::Write(extras, &extras_json); | |
183 DCHECK(write_success); | |
184 settings_instance->SendBroadcast(action, "org.chromium.arc.settings", | |
185 "org.chromium.arc.settings.SettingsReceiver", | |
186 extras_json); | |
187 } | |
188 | |
189 } // namespace arc | |
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