Added usage of ScreenContext in EulaScreen.

chrome/browser/ui/webui/chromeos/login/eula_screen_handler.cc

 // Copyright (c) 2012 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/login/eula_screen_handler.h"
 
 #include <string>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/help_app_launcher.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/browser/chromeos/login/screens/core_oobe_actor.h"
+#include "chrome/browser/chromeos/login/screens/eula_model.h"
 #include "chrome/browser/chromeos/login/ui/login_web_dialog.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_display.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/grit/locale_settings.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 50 matching lines @@
   dialog->Show();
   // The dialog object will be deleted on dialog close.
 }
 
 }  // namespace
 
 namespace chromeos {
 
 EulaScreenHandler::EulaScreenHandler(CoreOobeActor* core_oobe_actor)
     : BaseScreenHandler(kJsScreenPath),
-      delegate_(NULL),
+      model_(NULL),
       core_oobe_actor_(core_oobe_actor),
       show_on_init_(false) {
 }
 
 EulaScreenHandler::~EulaScreenHandler() {
-  if (delegate_)
-    delegate_->OnActorDestroyed(this);
+  if (model_)
+    model_->OnViewDestroyed(this);
 }
 
 void EulaScreenHandler::PrepareToShow() {
 }
 
 void EulaScreenHandler::Show() {
   if (!page_is_ready()) {
     show_on_init_ = true;
     return;
   }
   ShowScreen(OobeUI::kScreenOobeEula, NULL);
 }
 
 void EulaScreenHandler::Hide() {
 }
 
-void EulaScreenHandler::SetDelegate(Delegate* delegate) {
-  delegate_ = delegate;
+void EulaScreenHandler::Bind(EulaModel& model) {
+  model_ = &model;
+  BaseScreenHandler::set_base_screen(model_);
   if (page_is_ready())
     Initialize();
 }
 
+void EulaScreenHandler::Unbind() {
+  model_ = nullptr;
+  BaseScreenHandler::set_base_screen(nullptr);
+}
+
 void EulaScreenHandler::DeclareLocalizedValues(
     LocalizedValuesBuilder* builder) {
   builder->Add("eulaScreenTitle", IDS_EULA_SCREEN_TITLE);
   builder->Add("eulaScreenAccessibleTitle", IDS_EULA_SCREEN_ACCESSIBLE_TITLE);
   builder->Add("checkboxLogging", IDS_EULA_CHECKBOX_ENABLE_LOGGING);
   builder->Add("back", IDS_EULA_BACK_BUTTON);
   builder->Add("acceptAgreement", IDS_EULA_ACCEPT_AND_CONTINUE_BUTTON);
   builder->Add("eulaSystemInstallationSettings",
                IDS_EULA_SYSTEM_SECURITY_SETTING);
   builder->Add("eulaTpmDesc", IDS_EULA_TPM_DESCRIPTION);
   builder->Add("eulaTpmKeyDesc", IDS_EULA_TPM_KEY_DESCRIPTION);
   builder->Add("eulaTpmDescPowerwash", IDS_EULA_TPM_KEY_DESCRIPTION_POWERWASH);
   builder->Add("eulaTpmBusy", IDS_EULA_TPM_BUSY);
   builder->Add("eulaSystemInstallationSettingsOkButton", IDS_OK);
   builder->Add("termsOfServiceLoading", IDS_TERMS_OF_SERVICE_SCREEN_LOADING);
 #if defined(ENABLE_RLZ)
   builder->AddF("eulaRlzDesc",
                 IDS_EULA_RLZ_DESCRIPTION,
                 IDS_SHORT_PRODUCT_NAME,
                 IDS_PRODUCT_NAME);
   builder->AddF("eulaRlzEnable",
                 IDS_EULA_RLZ_ENABLE,
                 IDS_SHORT_PRODUCT_OS_NAME);
 #endif
 
   builder->Add("chromeCreditsLink", IDS_ABOUT_VERSION_LICENSE_EULA);
   builder->Add("chromeosCreditsLink", IDS_ABOUT_CROS_VERSION_LICENSE_EULA);
 }
 
+void EulaScreenHandler::DeclareJSCallbacks() {
+  AddCallback("eulaAcceptButtonClicked",
+              &EulaScreenHandler::HandleAcceptButtonClicked);
+  AddCallback("eulaBackButtonClicked",
+              &EulaScreenHandler::HandleBackButtonClicked);
+  AddCallback("eulaOnLearnMore", &EulaScreenHandler::HandleOnLearnMore);
+  AddCallback("eulaOnChromeOSCredits",
+              &EulaScreenHandler::HandleOnChromeOSCredits);
+  AddCallback("eulaOnChromeCredits", &EulaScreenHandler::HandleOnChromeCredits);
+  AddCallback("eulaOnLearnMore", &EulaScreenHandler::HandleOnLearnMore);
+  AddCallback("eulaOnInstallationSettingsPopupOpened",
+              &EulaScreenHandler::HandleOnInstallationSettingsPopupOpened);
+}
+
 void EulaScreenHandler::GetAdditionalParameters(base::DictionaryValue* dict) {
 #if defined(ENABLE_RLZ)
   dict->SetString("rlzEnabled", "enabled");
 #else
   dict->SetString("rlzEnabled", "disabled");
 #endif
 }
 
 void EulaScreenHandler::Initialize() {
-  if (!page_is_ready() || !delegate_)
+  if (!page_is_ready() || !model_)
     return;
 
-  core_oobe_actor_->SetUsageStats(delegate_->IsUsageStatsEnabled());
+  core_oobe_actor_->SetUsageStats(model_->IsUsageStatsEnabled());
 
   // This OEM EULA is a file:// URL which we're unable to load in iframe.
   // Instead if it's defined we use chrome://terms/oem that will load same file.
-  if (!delegate_->GetOemEulaUrl().is_empty())
+  if (!model_->GetOemEulaUrl().is_empty())
     core_oobe_actor_->SetOemEulaUrl(chrome::kChromeUITermsOemURL);
 
   if (show_on_init_) {
     Show();
     show_on_init_ = false;
   }
 }
 
-void EulaScreenHandler::RegisterMessages() {
-  AddCallback("eulaOnExit", &EulaScreenHandler::HandleOnExit);
-  AddCallback("eulaOnLearnMore", &EulaScreenHandler::HandleOnLearnMore);
-  AddCallback("eulaOnChromeOSCredits",
-              &EulaScreenHandler::HandleOnChromeOSCredits);
-  AddCallback("eulaOnChromeCredits",
-              &EulaScreenHandler::HandleOnChromeCredits);
-  AddCallback("eulaOnLearnMore", &EulaScreenHandler::HandleOnLearnMore);
-  AddCallback("eulaOnInstallationSettingsPopupOpened",
-              &EulaScreenHandler::HandleOnInstallationSettingsPopupOpened);
-}
-
 void EulaScreenHandler::OnPasswordFetched(const std::string& tpm_password) {
   core_oobe_actor_->SetTpmPassword(tpm_password);
 }
 
-void EulaScreenHandler::HandleOnExit(bool accepted, bool usage_stats_enabled) {
-  if (delegate_)
-    delegate_->OnExit(accepted, usage_stats_enabled);
+void EulaScreenHandler::HandleAcceptButtonClicked() {
+  if (model_)
+    model_->OnAcceptButtonClicked();
+}
+
+void EulaScreenHandler::HandleBackButtonClicked() {
+  if (model_)
+    model_->OnBackButtonClicked();
 }
 
 void EulaScreenHandler::HandleOnLearnMore() {
   if (!help_app_.get())
     help_app_ = new HelpAppLauncher(GetNativeWindow());
   help_app_->ShowHelpTopic(HelpAppLauncher::HELP_STATS_USAGE);
 }
 
 void EulaScreenHandler::HandleOnChromeOSCredits() {
   ShowCreditsDialog(
       Profile::FromBrowserContext(
           web_ui()->GetWebContents()->GetBrowserContext()),
       GetNativeWindow(),
       IDS_ABOUT_CROS_VERSION_LICENSE_EULA,
       GURL(chrome::kChromeUIOSCreditsURL));
 }
 
 void EulaScreenHandler::HandleOnChromeCredits() {
   ShowCreditsDialog(
       Profile::FromBrowserContext(
           web_ui()->GetWebContents()->GetBrowserContext()),
       GetNativeWindow(),
       IDS_ABOUT_VERSION_LICENSE_EULA,
       GURL(chrome::kChromeUICreditsURL));
 }
 
 void EulaScreenHandler::HandleOnInstallationSettingsPopupOpened() {
-  if (delegate_)
-    delegate_->InitiatePasswordFetch();
+  if (model_)
+    model_->InitiatePasswordFetch();
 }
 
 }  // namespace chromeos