1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
// Copyright 2014 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 "chrome/browser/ui/webui/chromeos/set_time_ui.h"
#include <stdint.h>
#include <memory>
#include "ash/public/cpp/login_screen.h"
#include "ash/public/cpp/login_types.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/build_time.h"
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "base/values.h"
#include "chrome/browser/chromeos/child_accounts/parent_access_code/parent_access_service.h"
#include "chrome/browser/chromeos/set_time_dialog.h"
#include "chrome/browser/chromeos/settings/cros_settings.h"
#include "chrome/browser/chromeos/system/timezone_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/localized_string.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/browser_resources.h"
#include "chrome/grit/generated_resources.h"
#include "chromeos/dbus/system_clock/system_clock_client.h"
#include "chromeos/settings/timezone_settings.h"
#include "components/strings/grit/components_strings.h"
#include "components/user_manager/user_manager.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "content/public/browser/web_ui_message_handler.h"
namespace chromeos {
namespace {
class SetTimeMessageHandler : public content::WebUIMessageHandler,
public chromeos::SystemClockClient::Observer,
public system::TimezoneSettings::Observer {
public:
SetTimeMessageHandler() : weak_factory_(this) {}
~SetTimeMessageHandler() override = default;
// WebUIMessageHandler:
void RegisterMessages() override {
web_ui()->RegisterMessageCallback(
"setTimePageReady",
base::BindRepeating(&SetTimeMessageHandler::OnPageReady,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"setTimeInSeconds",
base::BindRepeating(&SetTimeMessageHandler::OnSetTime,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"setTimezone",
base::BindRepeating(&SetTimeMessageHandler::OnSetTimezone,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"doneClicked", base::BindRepeating(&SetTimeMessageHandler::DoneClicked,
base::Unretained(this)));
}
void OnJavascriptAllowed() override {
clock_observer_.Add(SystemClockClient::Get());
timezone_observer_.Add(system::TimezoneSettings::GetInstance());
}
void OnJavascriptDisallowed() override {
clock_observer_.RemoveAll();
timezone_observer_.RemoveAll();
}
private:
void OnPageReady(const base::ListValue* args) { AllowJavascript(); }
// SystemClockClient::Observer:
void SystemClockUpdated() override {
FireWebUIListener("system-clock-updated");
}
// UI actually shows real device timezone, but only allows changing the user
// timezone. If user timezone settings are different from system, this means
// that user settings are overriden and must be disabled. (And we will still
// show the actual device timezone.)
// system::TimezoneSettings::Observer:
void TimezoneChanged(const icu::TimeZone& timezone) override {
base::Value timezone_id(system::TimezoneSettings::GetTimezoneID(timezone));
FireWebUIListener("system-timezone-changed", timezone_id);
}
// Handler for Javascript call to set the system clock when the user sets a
// new time. Expects the time as the number of seconds since the Unix
// epoch, treated as a double.
void OnSetTime(const base::ListValue* args) {
double seconds;
if (!args->GetDouble(0, &seconds)) {
NOTREACHED();
return;
}
SystemClockClient::Get()->SetTime(static_cast<int64_t>(seconds));
}
// Handler for Javascript call to change the system time zone when the user
// selects a new time zone. Expects the time zone ID as a string, as it
// appears in the time zone option values.
void OnSetTimezone(const base::ListValue* args) {
std::string timezone_id;
if (!args->GetString(0, &timezone_id)) {
NOTREACHED();
return;
}
Profile* profile = Profile::FromWebUI(web_ui());
DCHECK(profile);
system::SetTimezoneFromUI(profile, timezone_id);
}
void DoneClicked(const base::ListValue* args) {
if (!parent_access::ParentAccessService::IsApprovalRequired(
parent_access::ParentAccessService::SupervisedAction::
kUpdateClock)) {
OnParentAccessValidation(true);
return;
}
double seconds;
if (!args->GetDouble(0, &seconds)) {
NOTREACHED();
return;
}
AccountId account_id;
bool is_user_logged_in = user_manager::UserManager::Get()->IsUserLoggedIn();
if (is_user_logged_in) {
account_id =
user_manager::UserManager::Get()->GetActiveUser()->GetAccountId();
}
ash::LoginScreen::Get()->ShowParentAccessWidget(
account_id,
base::BindRepeating(&SetTimeMessageHandler::OnParentAccessValidation,
weak_factory_.GetWeakPtr()),
ash::ParentAccessRequestReason::kChangeTime,
!is_user_logged_in /* extra_dimmer */,
base::Time::FromDoubleT(seconds));
}
void OnParentAccessValidation(bool success) {
if (success)
FireWebUIListener("validation-complete");
}
ScopedObserver<SystemClockClient, SystemClockClient::Observer>
clock_observer_{this};
ScopedObserver<system::TimezoneSettings, system::TimezoneSettings::Observer>
timezone_observer_{this};
base::WeakPtrFactory<SetTimeMessageHandler> weak_factory_{this};
DISALLOW_COPY_AND_ASSIGN(SetTimeMessageHandler);
};
} // namespace
SetTimeUI::SetTimeUI(content::WebUI* web_ui) : WebDialogUI(web_ui) {
web_ui->AddMessageHandler(std::make_unique<SetTimeMessageHandler>());
// Set up the chrome://set-time source.
content::WebUIDataSource* source =
content::WebUIDataSource::Create(chrome::kChromeUISetTimeHost);
static constexpr LocalizedString kStrings[] = {
{"setTimeTitle", IDS_SET_TIME_TITLE},
{"prompt", IDS_SET_TIME_PROMPT},
{"timezoneLabel", IDS_SET_TIME_TIMEZONE_LABEL},
{"dateLabel", IDS_SET_TIME_DATE_LABEL},
{"timeLabel", IDS_SET_TIME_TIME_LABEL},
{"doneButton", IDS_DONE},
};
AddLocalizedStringsBulk(source, kStrings, base::size(kStrings));
base::DictionaryValue values;
// List of list of strings: [[ID, name], [ID, name], ...]
values.Set("timezoneList", chromeos::system::GetTimezoneList());
// If we are not logged in, we need to show the time zone dropdown.
// Otherwise, we can leave |currentTimezoneId| blank.
std::string current_timezone_id;
if (SetTimeDialog::ShouldShowTimezone())
CrosSettings::Get()->GetString(kSystemTimezone, ¤t_timezone_id);
values.SetString("currentTimezoneId", current_timezone_id);
values.SetDouble("buildTime", base::GetBuildTime().ToJsTime());
source->AddLocalizedStrings(values);
source->UseStringsJs();
source->AddResourcePath("set_time_browser_proxy.html",
IDR_SET_TIME_BROWSER_PROXY_HTML);
source->AddResourcePath("set_time_browser_proxy.js",
IDR_SET_TIME_BROWSER_PROXY_JS);
source->AddResourcePath("set_time_dialog.js", IDR_SET_TIME_DIALOG_JS);
source->SetDefaultResource(IDR_SET_TIME_DIALOG_HTML);
content::WebUIDataSource::Add(Profile::FromWebUI(web_ui), source);
}
SetTimeUI::~SetTimeUI() = default;
} // namespace chromeos
|
