[Web Payments] Add placeholders in non-selected payment sheet rows

chrome/browser/ui/views/payments/payment_sheet_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/payment_sheet_view_controller.h"
 
 #include <algorithm>
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
+#include "base/i18n/message_formatter.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_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_row_view.h"
 #include "chrome/browser/ui/views/payments/payment_request_views_util.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/autofill/core/browser/field_types.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
 #include "components/payments/content/payment_request_spec.h"
 #include "components/payments/content/payment_request_state.h"
 #include "components/payments/core/currency_formatter.h"
 #include "components/payments/core/payment_instrument.h"
 #include "components/payments/core/strings_util.h"
 #include "components/strings/grit/components_strings.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/paint_vector_icon.h"
 #include "ui/gfx/range/range.h"
+#include "ui/gfx/text_elider.h"
+#include "ui/gfx/text_utils.h"
 #include "ui/views/controls/button/md_text_button.h"
 #include "ui/views/controls/image_view.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/fill_layout.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/vector_icons.h"
 #include "ui/views/view.h"
 
 namespace payments {
 namespace {
 
 constexpr int kFirstTagValue = static_cast<int>(
     payments::PaymentRequestCommonTags::PAYMENT_REQUEST_COMMON_TAG_MAX);
 
 enum class PaymentSheetViewControllerTags {
   // The tag for the button that navigates to the Order Summary sheet.
   SHOW_ORDER_SUMMARY_BUTTON = kFirstTagValue,
   SHOW_SHIPPING_BUTTON,
   SHOW_PAYMENT_METHOD_BUTTON,
   SHOW_CONTACT_INFO_BUTTON,
   SHOW_SHIPPING_OPTION_BUTTON,
   PAY_BUTTON
 };
 
+// A class that ensures proper elision of labels in the form
+// "[preview] and N more" where preview might be elided to allow "and N more" to
+// be always visible.
+class PreviewEliderLabel : public views::Label {
+ public:
+  // Creates a PreviewEliderLabel where |preview_text| might be elided,
+  // |format_string| is the string with format argument numbers in ICU syntax
+  // and |n| is the "N more" item count.
+  PreviewEliderLabel(const base::string16& preview_text,
+                     const base::string16& format_string,
+                     int n)
+      : views::Label(base::ASCIIToUTF16("")),
+        preview_text_(preview_text),
+        format_string_(format_string),
+        n_(n) {}
+
+ private:
+  // Formats |preview_text_|, |format_string_|, and |n_| into a string that fits
+  // inside of |pixel_width|, eliding |preview_text_| as required.
+  base::string16 CreateElidedString(int pixel_width) {
+    for (int preview_length = preview_text_.size(); preview_length > 0;
+         --preview_length) {
+      base::string16 elided_preview;
+      gfx::ElideRectangleString(preview_text_, 1, preview_length,
+                                /*strict=*/false, &elided_preview);
+      base::string16 elided_string =
+          base::i18n::MessageFormatter::FormatWithNumberedArgs(
+              format_string_, "", elided_preview, n_);
+      if (gfx::GetStringWidth(elided_string, font_list()) <= width())
+        return elided_string;
+    }
+
+    // TODO(crbug.com/714776): Display something meaningful if the preview can't
+    // be elided enough for the string to fit.
+    return base::ASCIIToUTF16("");
+  }
+
+  // views::View:
+  void OnBoundsChanged(const gfx::Rect& previous_bounds) override {
+    SetText(CreateElidedString(width()));
+    views::Label::OnBoundsChanged(previous_bounds);
+  }
+
+  base::string16 preview_text_;
+  base::string16 format_string_;
+  int n_;
+
+  DISALLOW_COPY_AND_ASSIGN(PreviewEliderLabel);
+};
+
 int ComputeWidestNameColumnViewWidth() {
   // The name colums in each row should all have the same width, large enough to
   // accomodate the longest piece of text they contain. Because of this, each
   // row's GridLayout requires its first column to have a fixed width of the
   // correct size. To measure the required size, layout a label with each
   // section name, measure its width, then initialize |widest_column_width|
   // with the largest value.
   std::vector<int> section_names{
       IDS_PAYMENT_REQUEST_ORDER_SUMMARY_SECTION_NAME,
       IDS_PAYMENT_REQUEST_PAYMENT_METHOD_SECTION_NAME,
@@ skipping 74 matching lines @@
     layout->SkipColumns(1);
   }
 
   layout->AddView(trailing_button.release());
 
   return std::move(row);
 }
 
 // Creates a row with a button in place of the chevron.
 // +------------------------------------------+
-// | Name | truncated_content | button_string |
+// | Name | content_view      | button_string |
 // +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
 std::unique_ptr<views::Button> CreatePaymentSheetRowWithButton(
     views::ButtonListener* listener,
     const base::string16& section_name,
-    const base::string16& truncated_content,
+    std::unique_ptr<views::View> content_view,
     const base::string16& button_string,
     int button_tag,
     int button_id,
     int name_column_width) {
   std::unique_ptr<views::Button> button(
       views::MdTextButton::CreateSecondaryUiBlueButton(listener,
                                                        button_string));
   button->set_tag(button_tag);
   button->set_id(button_id);
-  std::unique_ptr<views::Label> content_view =
-      base::MakeUnique<views::Label>(truncated_content);
   return CreatePaymentSheetRow(listener, section_name, std::move(content_view),
                                nullptr, std::move(button),
                                /*clickable=*/false, name_column_width);
 }
 
+// Creates a row with a button in place of the chevron and |truncated_content|
+// between |section_name| and the button.
+// +------------------------------------------+
+// | Name | truncated_content | button_string |
+// +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+std::unique_ptr<views::Button> CreatePaymentSheetRowWithButton(
+    views::ButtonListener* listener,
+    const base::string16& section_name,
+    const base::string16& truncated_content,
+    const base::string16& button_string,
+    int button_tag,
+    int button_id,
+    int name_column_width) {
+  std::unique_ptr<views::Label> content_view =
+      base::MakeUnique<views::Label>(truncated_content);
+  content_view->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+  return CreatePaymentSheetRowWithButton(
+      listener, section_name, std::move(content_view), button_string,
+      button_tag, button_id, name_column_width);
+}
+
+// Creates a row with a button in place of the chevron with the string between
+// |section_name| and the button built as "|preview|... and |n| more".
+// |format_string| is used to assemble the truncated preview and the rest of the
+// content string.
+// +----------------------------------------------+
+// | Name | preview... and N more | button_string |
+// +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
+std::unique_ptr<views::Button> CreatePaymentSheetRowWithButton(
+    views::ButtonListener* listener,
+    const base::string16& section_name,
+    const base::string16& preview_text,
+    const base::string16& format_string,
+    int n,
+    const base::string16& button_string,
+    int button_tag,
+    int button_id,
+    int name_column_width) {
+  std::unique_ptr<PreviewEliderLabel> content_view =
+      base::MakeUnique<PreviewEliderLabel>(preview_text, format_string, n);
+  content_view->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+  return CreatePaymentSheetRowWithButton(
+      listener, section_name, std::move(content_view), button_string,
+      button_tag, button_id, name_column_width);
+}
+
 // Creates a clickable row to be displayed in the Payment Sheet. It contains
 // a section name and some content, followed by a chevron as a clickability
 // affordance. Both, either, or none of |content_view| and |extra_content_view|
 // may be present, the difference between the two being that content is pinned
 // to the left and extra_content is pinned to the right.
 // The row also displays a light gray horizontal ruler on its lower boundary.
 // The name column has a fixed width equal to |name_column_width|.
 // +----------------------------+
 // | Name | Content | Extra | > |
 // +~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ <-- ruler
@@ skipping 317 matching lines @@
         this, GetShippingAddressSectionString(spec()->shipping_type()),
         CreateShippingSectionContent(), nullptr,
         static_cast<int>(PaymentSheetViewControllerTags::SHOW_SHIPPING_BUTTON),
         static_cast<int>(DialogViewID::PAYMENT_SHEET_SHIPPING_ADDRESS_SECTION),
         widest_name_column_view_width_);
   } else {
     base::string16 button_string = state()->shipping_profiles().size()
                                        ? l10n_util::GetStringUTF16(IDS_CHOOSE)
                                        : l10n_util::GetStringUTF16(IDS_ADD);
 
-    section = CreatePaymentSheetRowWithButton(
-        this, GetShippingAddressSectionString(spec()->shipping_type()),
-        base::ASCIIToUTF16(""), button_string,
-        static_cast<int>(PaymentSheetViewControllerTags::SHOW_SHIPPING_BUTTON),
-        static_cast<int>(
-            DialogViewID::PAYMENT_SHEET_SHIPPING_ADDRESS_SECTION_BUTTON),
-        widest_name_column_view_width_);
+    if (state()->shipping_profiles().empty()) {
+      section = CreatePaymentSheetRowWithButton(
+          this, GetShippingAddressSectionString(spec()->shipping_type()),
+          base::ASCIIToUTF16(""), button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_SHIPPING_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_SHIPPING_ADDRESS_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    } else if (state()->shipping_profiles().size() == 1) {
+      base::string16 truncated_content =
+          state()->shipping_profiles()[0]->ConstructInferredLabel(
+              {
+                  autofill::ADDRESS_HOME_LINE1, autofill::ADDRESS_HOME_LINE2,
+                  autofill::ADDRESS_HOME_CITY, autofill::ADDRESS_HOME_STATE,
+                  autofill::ADDRESS_HOME_COUNTRY,
+              },
+              6, state()->GetApplicationLocale());
+      section = CreatePaymentSheetRowWithButton(
+          this, GetShippingAddressSectionString(spec()->shipping_type()),
+          truncated_content, button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_SHIPPING_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_SHIPPING_ADDRESS_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    } else {
+      base::string16 format = l10n_util::GetPluralStringFUTF16(
+          IDS_PAYMENT_REQUEST_SHIPPING_ADDRESSES_PREVIEW,
+          state()->shipping_profiles().size() - 1);
+      base::string16 label =
+          state()->shipping_profiles()[0]->ConstructInferredLabel(
+              {
+                  autofill::ADDRESS_HOME_LINE1, autofill::ADDRESS_HOME_LINE2,
+                  autofill::ADDRESS_HOME_CITY, autofill::ADDRESS_HOME_STATE,
+                  autofill::ADDRESS_HOME_COUNTRY,
+              },
+              6, state()->GetApplicationLocale());
+      section = CreatePaymentSheetRowWithButton(
+          this, GetShippingAddressSectionString(spec()->shipping_type()), label,
+          format, state()->shipping_profiles().size() - 1, button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_SHIPPING_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_SHIPPING_ADDRESS_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    }
   }
 
   return section;
 }
 
 // Creates the Payment Method row, which contains a "Payment" label, the user's
 // masked Credit Card details, the icon for the selected card, and a chevron.
 // If no option is selected or none is available, the Chevron and icon are
 // replaced with a button
 // +----------------------------------------------+
@@ skipping 33 matching lines @@
         std::move(content_view), std::move(card_icon_view),
         static_cast<int>(
             PaymentSheetViewControllerTags::SHOW_PAYMENT_METHOD_BUTTON),
         static_cast<int>(DialogViewID::PAYMENT_SHEET_PAYMENT_METHOD_SECTION),
         widest_name_column_view_width_);
   } else {
     base::string16 button_string = state()->available_instruments().size()
                                        ? l10n_util::GetStringUTF16(IDS_CHOOSE)
                                        : l10n_util::GetStringUTF16(IDS_ADD);
 
-    section = CreatePaymentSheetRowWithButton(
-        this,
-        l10n_util::GetStringUTF16(
-            IDS_PAYMENT_REQUEST_PAYMENT_METHOD_SECTION_NAME),
-        base::ASCIIToUTF16(""), button_string,
-        static_cast<int>(
-            PaymentSheetViewControllerTags::SHOW_PAYMENT_METHOD_BUTTON),
-        static_cast<int>(
-            DialogViewID::PAYMENT_SHEET_PAYMENT_METHOD_SECTION_BUTTON),
-        widest_name_column_view_width_);
+    if (state()->available_instruments().empty()) {
+      section = CreatePaymentSheetRowWithButton(
+          this,
+          l10n_util::GetStringUTF16(
+              IDS_PAYMENT_REQUEST_PAYMENT_METHOD_SECTION_NAME),
+          base::ASCIIToUTF16(""), button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_PAYMENT_METHOD_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_PAYMENT_METHOD_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    } else if (state()->available_instruments().size() == 1) {
+      section = CreatePaymentSheetRowWithButton(
+          this,
+          l10n_util::GetStringUTF16(
+              IDS_PAYMENT_REQUEST_PAYMENT_METHOD_SECTION_NAME),
+          state()->available_instruments()[0]->label(), button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_PAYMENT_METHOD_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_PAYMENT_METHOD_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    } else {
+      base::string16 format = l10n_util::GetPluralStringFUTF16(
+          IDS_PAYMENT_REQUEST_PAYMENT_METHODS_PREVIEW,
+          state()->available_instruments().size() - 1);
+      section = CreatePaymentSheetRowWithButton(
+          this,
+          l10n_util::GetStringUTF16(
+              IDS_PAYMENT_REQUEST_PAYMENT_METHOD_SECTION_NAME),
+          state()->available_instruments()[0]->label(), format,
+          state()->available_instruments().size() - 1, button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_PAYMENT_METHOD_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_PAYMENT_METHOD_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    }
   }
 
   return section;
 }
 
 std::unique_ptr<views::View>
 PaymentSheetViewController::CreateContactInfoSectionContent() {
   autofill::AutofillProfile* profile = state()->selected_contact_profile();
   return profile ? payments::GetContactInfoLabel(
                        AddressStyleType::SUMMARY,
@@ skipping 19 matching lines @@
         CreateContactInfoSectionContent(), nullptr,
         static_cast<int>(
             PaymentSheetViewControllerTags::SHOW_CONTACT_INFO_BUTTON),
         static_cast<int>(DialogViewID::PAYMENT_SHEET_CONTACT_INFO_SECTION),
         widest_name_column_view_width_);
   } else {
     base::string16 button_string = state()->contact_profiles().size()
                                        ? l10n_util::GetStringUTF16(IDS_CHOOSE)
                                        : l10n_util::GetStringUTF16(IDS_ADD);
 
-    section = CreatePaymentSheetRowWithButton(
-        this,
-        l10n_util::GetStringUTF16(
-            IDS_PAYMENT_REQUEST_CONTACT_INFO_SECTION_NAME),
-        base::ASCIIToUTF16(""), button_string,
-        static_cast<int>(
-            PaymentSheetViewControllerTags::SHOW_CONTACT_INFO_BUTTON),
-        static_cast<int>(
-            DialogViewID::PAYMENT_SHEET_CONTACT_INFO_SECTION_BUTTON),
-        widest_name_column_view_width_);
+    if (state()->contact_profiles().empty()) {
+      section = CreatePaymentSheetRowWithButton(
+          this,
+          l10n_util::GetStringUTF16(
+              IDS_PAYMENT_REQUEST_CONTACT_INFO_SECTION_NAME),
+          base::ASCIIToUTF16(""), button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_CONTACT_INFO_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_CONTACT_INFO_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    } else if (state()->contact_profiles().size() == 1) {
+      base::string16 truncated_content =
+          state()->contact_profiles()[0]->ConstructInferredLabel(
+              {
+                  autofill::ADDRESS_HOME_LINE1, autofill::ADDRESS_HOME_LINE2,
+                  autofill::ADDRESS_HOME_CITY, autofill::ADDRESS_HOME_STATE,
+                  autofill::ADDRESS_HOME_COUNTRY,
+              },
+              6, state()->GetApplicationLocale());
+      section = CreatePaymentSheetRowWithButton(
+          this,
+          l10n_util::GetStringUTF16(
+              IDS_PAYMENT_REQUEST_CONTACT_INFO_SECTION_NAME),
+          truncated_content, button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_CONTACT_INFO_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_CONTACT_INFO_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    } else {
+      base::string16 preview =
+          state()->contact_profiles()[0]->ConstructInferredLabel(
+              {
+                  autofill::ADDRESS_HOME_LINE1, autofill::ADDRESS_HOME_LINE2,
+                  autofill::ADDRESS_HOME_CITY, autofill::ADDRESS_HOME_STATE,
+                  autofill::ADDRESS_HOME_COUNTRY,
+              },
+              6, state()->GetApplicationLocale());
+      base::string16 format = l10n_util::GetPluralStringFUTF16(
+          IDS_PAYMENT_REQUEST_CONTACTS_PREVIEW,
+          state()->contact_profiles().size() - 1);
+      section = CreatePaymentSheetRowWithButton(
+          this,
+          l10n_util::GetStringUTF16(
+              IDS_PAYMENT_REQUEST_CONTACT_INFO_SECTION_NAME),
+          preview, format, state()->contact_profiles().size() - 1,
+          button_string,
+          static_cast<int>(
+              PaymentSheetViewControllerTags::SHOW_CONTACT_INFO_BUTTON),
+          static_cast<int>(
+              DialogViewID::PAYMENT_SHEET_CONTACT_INFO_SECTION_BUTTON),
+          widest_name_column_view_width_);
+    }
   }
 
   return section;
 }
 
 std::unique_ptr<views::Button>
 PaymentSheetViewController::CreateShippingOptionRow() {
   mojom::PaymentShippingOption* selected_option =
       spec()->selected_shipping_option();
   // The shipping option section displays the currently selected option if there
@@ skipping 33 matching lines @@
             PaymentSheetViewControllerTags::SHOW_SHIPPING_OPTION_BUTTON),
         static_cast<int>(
             DialogViewID::PAYMENT_SHEET_SHIPPING_OPTION_SECTION_BUTTON),
         widest_name_column_view_width_);
   }
 
   return section;
 }
 
 }  // namespace payments