[Payments] Implements the credit card editor for Desktop UI

chrome/browser/ui/views/payments/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/editor_view_controller.h"
+
+#include <utility>
+
+#include "base/strings/utf_string_conversions.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/payment_request.h"
+#include "components/strings/grit/components_strings.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/views/border.h"
+#include "ui/views/controls/button/label_button.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/controls/textfield/textfield.h"
+#include "ui/views/layout/box_layout.h"
+#include "ui/views/layout/grid_layout.h"
+#include "ui/views/view.h"
+
+namespace payments {
+namespace {
+
+constexpr int kFirstTagValue = static_cast<int>(
+    payments::PaymentRequestCommonTags::PAYMENT_REQUEST_COMMON_TAG_MAX);
+
+enum class EditorViewControllerTags : int {
+  // The tag for the button that saves the model being edited. Starts at
+  // |kFirstTagValue| not to conflict with tags common to all views.
+  SAVE_BUTTON = kFirstTagValue,
+};
+
+constexpr int kNumCharactersInShortField = 6;
+constexpr int kNumCharactersInLongField = 20;
+
+}  // namespace
+
+EditorViewController::EditorViewController(PaymentRequest* request,
+                                           PaymentRequestDialogView* dialog)
+    : PaymentRequestSheetController(request, dialog) {}
+
+EditorViewController::~EditorViewController() {}
+
+std::unique_ptr<views::View> EditorViewController::CreateView() {
+  std::unique_ptr<views::View> content_view = base::MakeUnique<views::View>();
+
+  views::BoxLayout* layout =
+      new views::BoxLayout(views::BoxLayout::kVertical, 0, 0, 0);
+  layout->set_main_axis_alignment(views::BoxLayout::MAIN_AXIS_ALIGNMENT_START);
+  layout->set_cross_axis_alignment(
+      views::BoxLayout::CROSS_AXIS_ALIGNMENT_STRETCH);
+  content_view->SetLayoutManager(layout);
+
+  // Create an input label/textfield for each field definition.
+  std::vector<EditorField> fields = GetFieldDefinitions();
+  for (const auto& field : fields) {
+    views::Textfield* text_field = nullptr;
+    content_view->AddChildView(CreateInputField(field, &text_field).release());
+    // |field| is moved out of the |fields| structure and should not be
+    // referenced after the following line.
+    text_fields_.insert(std::make_pair(text_field, std::move(field)));
+  }
+
+  // TODO(mathp): Use the save button in the footer once it's built.
+  views::LabelButton* button = views::MdTextButton::CreateSecondaryUiButton(
+      this, l10n_util::GetStringUTF16(IDS_PASSWORD_MANAGER_SAVE_BUTTON));
+  button->set_tag(static_cast<int>(EditorViewControllerTags::SAVE_BUTTON));
+  button->set_id(static_cast<int>(DialogViewID::EDITOR_SAVE_BUTTON));
+  content_view->AddChildView(button);
+
+  return CreatePaymentView(
+      CreateSheetHeaderView(
+          true, l10n_util::GetStringUTF16(
+                    IDS_PAYMENT_REQUEST_CREDIT_CARD_EDITOR_ADD_TITLE),
+          this),
+      std::move(content_view));
+}
+
+void EditorViewController::ButtonPressed(views::Button* sender,
+                                         const ui::Event& event) {
+  switch (sender->tag()) {
+    case static_cast<int>(EditorViewControllerTags::SAVE_BUTTON):
+      if (ValidateModelAndSave())
+        dialog()->GoBack();
+      break;
+    default:
+      PaymentRequestSheetController::ButtonPressed(sender, event);
+      break;
+  }
+}
+
+void EditorViewController::ContentsChanged(views::Textfield* sender,
+                                           const base::string16& new_contents) {
+  // TODO(mathp): Validate the |sender| textfield and display errors.
+}
+
+std::unique_ptr<views::View> EditorViewController::CreateInputField(
+    const EditorField& field,
+    views::Textfield** text_field) {
+  std::unique_ptr<views::View> row = base::MakeUnique<views::View>();
+
+  row->SetBorder(payments::CreatePaymentRequestRowBorder());
+
+  views::GridLayout* layout = new views::GridLayout(row.get());
+
+  // The vertical spacing for these rows is slightly different than the spacing
+  // spacing for clickable rows, so don't use kPaymentRequestRowVerticalInsets.
+  constexpr int kRowVerticalInset = 12;
+  layout->SetInsets(
+      kRowVerticalInset, payments::kPaymentRequestRowHorizontalInsets,
+      kRowVerticalInset, payments::kPaymentRequestRowHorizontalInsets);
+
+  row->SetLayoutManager(layout);
+  views::ColumnSet* columns = layout->AddColumnSet(0);
+  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER, 0,
+                     views::GridLayout::USE_PREF, 0, 0);
+  columns->AddPaddingColumn(1, 0);
+  columns->AddColumn(views::GridLayout::TRAILING, views::GridLayout::CENTER, 0,
+                     views::GridLayout::USE_PREF, 0, 0);
+
+  layout->StartRow(0, 0);
+  layout->AddView(new views::Label(field.label));
+
+  *text_field = new views::Textfield();
+  (*text_field)->set_controller(this);
+  (*text_field)
+      ->set_default_width_in_chars(field.length_hint ==
+                                           EditorField::LengthHint::HINT_SHORT
+                                       ? kNumCharactersInShortField
+                                       : kNumCharactersInLongField);
+  // |text_field| will now be owned by the layout, but the caller kept a
+  // reference.
+  layout->AddView(*text_field);
+
+  return row;
+}
+
+}  // namespace payments