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/ui/webui/chromeos/login/terms_of_service_screen_handler.h"
6
7#include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
8#include "grit/chromium_strings.h"
9#include "grit/generated_resources.h"
10
11namespace {
12
13const char kJsScreenPath[] = "login.TermsOfServiceScreen";
14
15}  // namespace
16
17namespace chromeos {
18
19TermsOfServiceScreenHandler::TermsOfServiceScreenHandler()
20    : BaseScreenHandler(kJsScreenPath),
21      screen_(NULL),
22      show_on_init_(false),
23      load_error_(false) {
24}
25
26TermsOfServiceScreenHandler::~TermsOfServiceScreenHandler() {
27  if (screen_)
28    screen_->OnActorDestroyed(this);
29}
30
31void TermsOfServiceScreenHandler::RegisterMessages() {
32  AddCallback("termsOfServiceBack",
33              &TermsOfServiceScreenHandler::HandleBack);
34  AddCallback("termsOfServiceAccept",
35              &TermsOfServiceScreenHandler::HandleAccept);
36}
37
38void TermsOfServiceScreenHandler::DeclareLocalizedValues(
39    LocalizedValuesBuilder* builder) {
40  builder->Add("termsOfServiceScreenHeading",
41               IDS_TERMS_OF_SERVICE_SCREEN_HEADING);
42  builder->Add("termsOfServiceScreenSubheading",
43               IDS_TERMS_OF_SERVICE_SCREEN_SUBHEADING);
44  builder->Add("termsOfServiceContentHeading",
45               IDS_TERMS_OF_SERVICE_SCREEN_CONTENT_HEADING);
46  builder->Add("termsOfServiceLoading", IDS_TERMS_OF_SERVICE_SCREEN_LOADING);
47  builder->Add("termsOfServiceError", IDS_TERMS_OF_SERVICE_SCREEN_ERROR);
48  builder->Add("termsOfServiceTryAgain", IDS_TERMS_OF_SERVICE_SCREEN_TRY_AGAIN);
49  builder->Add("termsOfServiceBackButton",
50               IDS_TERMS_OF_SERVICE_SCREEN_BACK_BUTTON);
51  builder->Add("termsOfServiceAcceptButton",
52               IDS_TERMS_OF_SERVICE_SCREEN_ACCEPT_BUTTON);
53}
54
55void TermsOfServiceScreenHandler::SetDelegate(Delegate* screen) {
56  screen_ = screen;
57}
58
59void TermsOfServiceScreenHandler::Show() {
60  if (!page_is_ready()) {
61    show_on_init_ = true;
62    return;
63  }
64
65  // Updates the domain name shown in the UI.
66  UpdateDomainInUI();
67
68  // Update the UI to show an error message or the Terms of Service.
69  UpdateTermsOfServiceInUI();
70
71  ShowScreen(OobeUI::kScreenTermsOfService, NULL);
72}
73
74void TermsOfServiceScreenHandler::Hide() {
75}
76
77void TermsOfServiceScreenHandler::SetDomain(const std::string& domain) {
78  domain_ = domain;
79  UpdateDomainInUI();
80}
81
82void TermsOfServiceScreenHandler::OnLoadError() {
83  load_error_ = true;
84  terms_of_service_ = "";
85  UpdateTermsOfServiceInUI();
86}
87
88void TermsOfServiceScreenHandler::OnLoadSuccess(
89    const std::string& terms_of_service) {
90  load_error_ = false;
91  terms_of_service_ = terms_of_service;
92  UpdateTermsOfServiceInUI();
93}
94
95void TermsOfServiceScreenHandler::Initialize() {
96  if (show_on_init_) {
97    Show();
98    show_on_init_ = false;
99  }
100}
101
102void TermsOfServiceScreenHandler::UpdateDomainInUI() {
103  if (page_is_ready())
104    CallJS("setDomain", domain_);
105}
106
107void TermsOfServiceScreenHandler::UpdateTermsOfServiceInUI() {
108  if (!page_is_ready())
109    return;
110
111  // If either |load_error_| or |terms_of_service_| is set, the download of the
112  // Terms of Service has completed and the UI should be updated. Otherwise, the
113  // download is still in progress and the UI will be updated when the
114  // OnLoadError() or the OnLoadSuccess() callback is called.
115  if (load_error_)
116    CallJS("setTermsOfServiceLoadError");
117  else if (!terms_of_service_.empty())
118    CallJS("setTermsOfService", terms_of_service_);
119}
120
121void TermsOfServiceScreenHandler::HandleBack() {
122  if (screen_)
123    screen_->OnDecline();
124}
125
126void TermsOfServiceScreenHandler::HandleAccept() {
127  if (!screen_)
128    return;
129
130  // If the Terms of Service have not been successfully downloaded, the "accept
131  // and continue" button should not be accessible. If the user managed to
132  // activate it somehow anway, do not treat this as acceptance of the Terms
133  // and Conditions and end the session instead, as if the user had declined.
134  if (terms_of_service_.empty())
135    screen_->OnDecline();
136  else
137    screen_->OnAccept();
138}
139
140}  // namespace chromeos
141