src/chrome/browser/ui/webui/chromeos/login/host_pairing_screen_handler.cc

   1 // Copyright 2014 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/host_pairing_screen_handler.h"
   6
   7 #include "base/strings/string_util.h"
   8 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
   9 #include "grit/generated_resources.h"
  10
  11 namespace chromeos {
  12
  13 namespace {
  14
  15 const char kJsScreenPath[] = "login.HostPairingScreen";
  16
  17 const char kMethodContextChanged[] = "contextChanged";
  18
  19 // Sent from JS when screen is ready to receive context updates.
  20 // TODO(dzhioev): Move 'contextReady' logic to the base screen handler when
  21 // all screens migrate to context-based communications.
  22 const char kCallbackContextReady[] = "contextReady";
  23
  24 }  // namespace
  25
  26 HostPairingScreenHandler::HostPairingScreenHandler()
  27     : BaseScreenHandler(kJsScreenPath),
  28       delegate_(NULL),
  29       show_on_init_(false),
  30       js_context_ready_(false) {
  31 }
  32
  33 HostPairingScreenHandler::~HostPairingScreenHandler() {
  34   if (delegate_)
  35     delegate_->OnActorDestroyed(this);
  36 }
  37
  38 void HostPairingScreenHandler::HandleContextReady() {
  39   js_context_ready_ = true;
  40   OnContextChanged(context_cache_.storage());
  41 }
  42
  43 void HostPairingScreenHandler::Initialize() {
  44   if (!page_is_ready() || !delegate_)
  45     return;
  46
  47   if (show_on_init_) {
  48     Show();
  49     show_on_init_ = false;
  50   }
  51 }
  52
  53 void HostPairingScreenHandler::DeclareLocalizedValues(
  54     LocalizedValuesBuilder* builder) {
  55   // TODO(dzhioev): Move the prefix logic to the base screen handler after
  56   // migration.
  57   std::string prefix;
  58   base::ReplaceChars(kJsScreenPath, ".", "_", &prefix);
  59   prefix += "_";
  60
  61   builder->Add(prefix + "welcomeTitle", IDS_PAIRING_HOST_WELCOME_TITLE);
  62   builder->Add(prefix + "welcomeText", IDS_PAIRING_HOST_WELCOME_TEXT);
  63   builder->Add(prefix + "confirmationTitle",
  64                IDS_PAIRING_HOST_CONFIRMATION_TITLE);
  65   builder->Add(prefix + "updatingTitle", IDS_PAIRING_HOST_UPDATING_TITLE);
  66   builder->Add(prefix + "updatingText", IDS_PAIRING_HOST_UPDATING_TEXT);
  67   builder->Add(prefix + "enrollTitle", IDS_PAIRING_ENROLL_TITLE);
  68   builder->Add(prefix + "enrollingTitle",
  69                IDS_PAIRING_ENROLLMENT_IN_PROGRESS);
  70   builder->Add(prefix + "doneTitle", IDS_PAIRING_HOST_DONE_TITLE);
  71   builder->Add(prefix + "doneText", IDS_PAIRING_HOST_DONE_TEXT);
  72   builder->Add(prefix + "enrollmentErrorTitle",
  73                IDS_PAIRING_ENROLLMENT_ERROR_TITLE);
  74   builder->Add(prefix + "errorNeedsRestart",
  75                IDS_PAIRING_HOST_EROLLMENT_ERROR_NEEDS_RESTART);
  76 }
  77
  78 void HostPairingScreenHandler::RegisterMessages() {
  79   AddPrefixedCallback(kCallbackContextReady,
  80                       &HostPairingScreenHandler::HandleContextReady);
  81 }
  82
  83 void HostPairingScreenHandler::Show() {
  84   if (!page_is_ready()) {
  85     show_on_init_ = true;
  86     return;
  87   }
  88   ShowScreen(OobeUI::kScreenHostPairing, NULL);
  89 }
  90
  91 void HostPairingScreenHandler::Hide() {
  92 }
  93
  94 void HostPairingScreenHandler::SetDelegate(Delegate* delegate) {
  95   delegate_ = delegate;
  96   if (page_is_ready())
  97     Initialize();
  98 }
  99
 100 void HostPairingScreenHandler::OnContextChanged(
 101     const base::DictionaryValue& diff) {
 102   if (!js_context_ready_) {
 103     context_cache_.ApplyChanges(diff, NULL);
 104     return;
 105   }
 106   CallJS(kMethodContextChanged, diff);
 107 }
 108
 109 }  // namespace chromeos