[Payments] Desktop: implement shipping address/option change

chrome/browser/ui/views/payments/order_summary_view_controller.cc

 // Copyright 2016 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/views/payments/order_summary_view_controller.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view.h"
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view_ids.h"
 #include "chrome/browser/ui/views/payments/payment_request_views_util.h"
 #include "chrome/grit/generated_resources.h"
-#include "components/payments/content/payment_request_spec.h"
 #include "components/payments/core/currency_formatter.h"
 #include "components/strings/grit/components_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/font.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/button/md_text_button.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/styled_label.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/grid_layout.h"
@@ skipping 51 matching lines @@
   return row;
 }
 
 }  // namespace
 
 OrderSummaryViewController::OrderSummaryViewController(
     PaymentRequestSpec* spec,
     PaymentRequestState* state,
     PaymentRequestDialogView* dialog)
     : PaymentRequestSheetController(spec, state, dialog), pay_button_(nullptr) {
+  spec->AddObserver(this);
   state->AddObserver(this);
 }
 
 OrderSummaryViewController::~OrderSummaryViewController() {
+  spec()->RemoveObserver(this);
   state()->RemoveObserver(this);
 }
 
+void OrderSummaryViewController::OnSpecUpdated() {
+  UpdateContentView();
+}
+
+void OrderSummaryViewController::OnSelectedInformationChanged() {
+  UpdatePayButtonState(state()->is_ready_to_pay());
+}
+
 std::unique_ptr<views::Button>
 OrderSummaryViewController::CreatePrimaryButton() {
   std::unique_ptr<views::Button> button(
       views::MdTextButton::CreateSecondaryUiBlueButton(
           this, l10n_util::GetStringUTF16(IDS_PAYMENTS_PAY_BUTTON)));
   button->set_tag(static_cast<int>(PaymentRequestCommonTags::PAY_BUTTON_TAG));
   button->set_id(static_cast<int>(DialogViewID::PAY_BUTTON));
   pay_button_ = button.get();
   UpdatePayButtonState(state()->is_ready_to_pay());
   return button;
@@ skipping 34 matching lines @@
       spec()->GetFormattedCurrencyAmount(
           spec()->details().total->amount->value));
 
   content_view->AddChildView(
       CreateLineItemView(base::UTF8ToUTF16(spec()->details().total->label),
                          total_label_value, true,
                          DialogViewID::ORDER_SUMMARY_TOTAL_AMOUNT_LABEL)
           .release());
 }
 
-void OrderSummaryViewController::OnSelectedInformationChanged() {
-  UpdatePayButtonState(state()->is_ready_to_pay());
-}
-
 void OrderSummaryViewController::UpdatePayButtonState(bool enabled) {
   pay_button_->SetEnabled(enabled);
 }
 
 }  // namespace payments