[Payments] Basic validation in the credit card editor.

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

 // Copyright 2017 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/credit_card_editor_view_controller.h"
 
 #include <utility>
 
+#include "base/memory/ptr_util.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/autofill/core/browser/autofill_type.h"
+#include "components/autofill/core/browser/credit_card.h"
 #include "components/autofill/core/browser/field_types.h"
+#include "components/autofill/core/browser/validation.h"
+#include "components/autofill/core/common/autofill_constants.h"
 #include "components/payments/payment_request.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/views/controls/textfield/textfield.h"
 
 namespace payments {
 
 CreditCardEditorViewController::CreditCardEditorViewController(
     PaymentRequest* request,
     PaymentRequestDialogView* dialog)
     : EditorViewController(request, dialog) {}
 
 CreditCardEditorViewController::~CreditCardEditorViewController() {}
 
 std::vector<EditorField> CreditCardEditorViewController::GetFieldDefinitions() {
   return std::vector<EditorField>{
+      {autofill::CREDIT_CARD_NAME_FULL,
+       l10n_util::GetStringUTF16(IDS_AUTOFILL_FIELD_LABEL_NAME_ON_CARD),
+       EditorField::LengthHint::HINT_LONG},
       {autofill::CREDIT_CARD_NUMBER,
        l10n_util::GetStringUTF16(IDS_AUTOFILL_FIELD_LABEL_CREDIT_CARD_NUMBER),
        EditorField::LengthHint::HINT_LONG},
-      {autofill::CREDIT_CARD_NAME_FULL,
-       l10n_util::GetStringUTF16(IDS_AUTOFILL_FIELD_LABEL_NAME_ON_CARD),
-       EditorField::LengthHint::HINT_LONG},
       {autofill::CREDIT_CARD_EXP_DATE_2_DIGIT_YEAR,
        l10n_util::GetStringUTF16(IDS_AUTOFILL_FIELD_LABEL_EXPIRATION_DATE),
        EditorField::LengthHint::HINT_SHORT}};
 }
 
 bool CreditCardEditorViewController::ValidateModelAndSave() {
-  // TODO(mathp): Actual validation and saving the model on disk.
+  autofill::CreditCard credit_card;
+  credit_card.set_origin(autofill::kSettingsOrigin);
+  for (const auto& field : text_fields()) {
+    // ValidatingTextfield* is the key, EditorField is the value.
+    DCHECK_EQ(autofill::CREDIT_CARD,
+              autofill::AutofillType(field.second.type).group());
+    if (field.first->invalid())
+      return false;
+
+    credit_card.SetRawInfo(field.second.type, field.first->text());
+  }
+
+  // TODO(mathp): Display global error message.
+  if (!credit_card.IsValid())
+    return false;
+
+  // Add the card (will not add a duplicate).
+  request()->personal_data_manager()->AddCreditCard(credit_card);
+
   return true;
 }
 
+std::unique_ptr<ValidatingTextfield::Delegate>
+CreditCardEditorViewController::CreateValidationDelegate(
+    const EditorField& field) {
+  return base::MakeUnique<CreditCardEditorViewController::ValidationDelegate>(
+      field);
+}
+
+CreditCardEditorViewController::ValidationDelegate::ValidationDelegate(
+    const EditorField& field)
+    : field_(field) {}
+CreditCardEditorViewController::ValidationDelegate::~ValidationDelegate() {}
+
+bool CreditCardEditorViewController::ValidationDelegate::ValidateTextfield(
+    views::Textfield* textfield) {
+  base::string16 error_message;
+  // TODO(mathp): Display |error_message| around |textfield|.
+  return autofill::IsValidForType(textfield->text(), field_.type,
+                                  &error_message);
+}
+
 }  // namespace payments