Upstream Chrome on iOS source code [2/11].

ios/chrome/browser/payments/payment_request_view_controller.mm

+// 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.
+
+#import "ios/chrome/browser/payments/payment_request_view_controller.h"
+
+#import "base/ios/weak_nsobject.h"
+#include "base/mac/foundation_util.h"
+#include "base/mac/objc_property_releaser.h"
+#include "base/mac/scoped_nsobject.h"
+#include "base/strings/sys_string_conversions.h"
+#include "components/autofill/core/browser/autofill_data_util.h"
+#include "components/autofill/core/browser/autofill_profile.h"
+#include "components/autofill/core/browser/credit_card.h"
+#include "components/autofill/core/browser/field_types.h"
+#include "components/autofill/core/browser/personal_data_manager.h"
+#include "ios/chrome/browser/application_context.h"
+#import "ios/chrome/browser/payments/cells/page_info_item.h"
+#import "ios/chrome/browser/payments/cells/payment_method_item.h"
+#import "ios/chrome/browser/payments/cells/shipping_address_item.h"
+#import "ios/chrome/browser/payments/payment_request_utils.h"
+#import "ios/chrome/browser/ui/collection_view/cells/MDCCollectionViewCell+Chrome.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_detail_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_text_item.h"
+#import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
+#import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
+#include "ios/chrome/browser/ui/rtl_geometry.h"
+#include "ios/chrome/grit/ios_strings.h"
+#import "ios/third_party/material_components_ios/src/components/Buttons/src/MaterialButtons.h"
+#import "ios/third_party/material_components_ios/src/components/CollectionCells/src/MaterialCollectionCells.h"
+#import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+
+NSString* const kPaymentRequestCollectionViewId =
+    @"kPaymentRequestCollectionViewId";
+
+namespace {
+
+const CGFloat kButtonEdgeInset = 9;
+const CGFloat kSeparatorEdgeInset = 14;
+
+typedef NS_ENUM(NSInteger, SectionIdentifier) {
+  SectionIdentifierSummary = kSectionIdentifierEnumZero,
+  SectionIdentifierShipping,
+  SectionIdentifierPayment,
+
+};
+
+typedef NS_ENUM(NSInteger, ItemType) {
+  ItemTypeSummaryPageInfo = kItemTypeEnumZero,
+  ItemTypeSummaryTotal,
+  ItemTypeShippingTitle,
+  ItemTypeShippingAddress,
+  ItemTypeAddShippingAddress,
+  ItemTypePaymentTitle,
+  ItemTypePaymentMethod,
+};
+
+}  // namespace
+
+@interface PaymentRequestViewController () {
+  base::WeakNSProtocol<id<PaymentRequestViewControllerDelegate>> _delegate;
+  base::scoped_nsobject<UIBarButtonItem> _cancelButton;
+  base::scoped_nsobject<MDCFlatButton> _payButton;
+
+  ShippingAddressItem* _selectedShippingAddressItem;
+
+  base::mac::ObjCPropertyReleaser
+      _propertyReleaser_PaymentRequestViewController;
+}
+
+// Called when the user presses the cancel button.
+- (void)onCancel;
+
+// Called when the user presses the confirm button.
+- (void)onConfirm;
+
+@end
+
+@implementation PaymentRequestViewController
+
+@synthesize paymentRequest = _paymentRequest;
+@synthesize pageFavicon = _pageFavicon;
+@synthesize pageTitle = _pageTitle;
+@synthesize pageHost = _pageHost;
+@synthesize selectedPaymentMethod = _selectedPaymentMethod;
+@synthesize selectedShippingAddress = _selectedShippingAddress;
+
+- (instancetype)init {
+  if ((self = [super initWithStyle:CollectionViewControllerStyleAppBar])) {
+    _propertyReleaser_PaymentRequestViewController.Init(
+        self, [PaymentRequestViewController class]);
+
+    [self setTitle:l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_TITLE)];
+
+    // Set up left (cancel) button.
+    _cancelButton.reset([[UIBarButtonItem alloc]
+        initWithTitle:l10n_util::GetNSString(
+                          IDS_IOS_PAYMENT_REQUEST_CANCEL_BUTTON)
+                style:UIBarButtonItemStylePlain
+               target:nil
+               action:@selector(onCancel)]);
+    [_cancelButton setTitleTextAttributes:@{
+      NSForegroundColorAttributeName : [UIColor lightGrayColor]
+    }
+                                 forState:UIControlStateDisabled];
+    [self navigationItem].leftBarButtonItem = _cancelButton;
+
+    // Set up right (pay) button.
+    _payButton.reset([[MDCFlatButton alloc] init]);
+    [_payButton
+        setTitle:l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_PAY_BUTTON)
+        forState:UIControlStateNormal];
+    [_payButton setBackgroundColor:[[MDCPalette cr_bluePalette] tint500]
+                          forState:UIControlStateNormal];
+    [_payButton setInkColor:[UIColor colorWithWhite:1 alpha:0.2]];
+    [_payButton setBackgroundColor:[UIColor grayColor]
+                          forState:UIControlStateDisabled];
+    [_payButton addTarget:nil
+                   action:@selector(onConfirm)
+         forControlEvents:UIControlEventTouchUpInside];
+    [_payButton sizeToFit];
+    [_payButton setEnabled:NO];
+    [_payButton setAutoresizingMask:UIViewAutoresizingFlexibleTrailingMargin() |
+                                    UIViewAutoresizingFlexibleTopMargin |
+                                    UIViewAutoresizingFlexibleBottomMargin];
+
+    // The navigation bar will set the rightBarButtonItem's height to the full
+    // height of the bar. We don't want that for the button so we use a UIView
+    // here to contain the button instead and the button is vertically centered
+    // inside the full bar height.
+    UIView* buttonView =
+        [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
+    [buttonView addSubview:_payButton];
+    // Navigation bar button items are aligned with the trailing edge of the
+    // screen. Make the enclosing view larger here. The pay button will be
+    // aligned with the leading edge of the enclosing view leaving an inset on
+    // the trailing edge.
+    CGRect buttonViewBounds = buttonView.bounds;
+    buttonViewBounds.size.width =
+        [_payButton frame].size.width + kButtonEdgeInset;
+    buttonView.bounds = buttonViewBounds;
+
+    UIBarButtonItem* payButtonItem =
+        [[[UIBarButtonItem alloc] initWithCustomView:buttonView] autorelease];
+    [self navigationItem].rightBarButtonItem = payButtonItem;
+  }
+  return self;
+}
+
+- (id<PaymentRequestViewControllerDelegate>)delegate {
+  return _delegate.get();
+}
+
+- (void)setDelegate:(id<PaymentRequestViewControllerDelegate>)delegate {
+  _delegate.reset(delegate);
+}
+
+- (void)setSelectedPaymentMethod:(autofill::CreditCard*)method {
+  _selectedPaymentMethod = method;
+  [_payButton setEnabled:(method != nil)];
+}
+
+- (void)onCancel {
+  [_cancelButton setEnabled:NO];
+  [_payButton setEnabled:NO];
+
+  [_delegate paymentRequestViewControllerDidCancel];
+}
+
+- (void)onConfirm {
+  [_cancelButton setEnabled:NO];
+  [_payButton setEnabled:NO];
+
+  [_delegate paymentRequestViewControllerDidConfirm];
+}
+
+#pragma mark - CollectionViewController methods
+
+- (void)loadModel {
+  [super loadModel];
+  CollectionViewModel* model = self.collectionViewModel;
+
+  // Summary section.
+  [model addSectionWithIdentifier:SectionIdentifierSummary];
+
+  PageInfoItem* pageInfo =
+      [[[PageInfoItem alloc] initWithType:ItemTypeSummaryPageInfo] autorelease];
+  pageInfo.pageFavicon = _pageFavicon;
+  pageInfo.pageTitle = _pageTitle;
+  pageInfo.pageHost = _pageHost;
+  [model setHeader:pageInfo forSectionWithIdentifier:SectionIdentifierSummary];
+
+  CollectionViewDetailItem* total = [[[CollectionViewDetailItem alloc]
+      initWithType:ItemTypeSummaryTotal] autorelease];
+  total.text = l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_TOTAL_HEADER);
+  NSString* currencyCode =
+      base::SysUTF16ToNSString(_paymentRequest.details.total.amount.currency);
+  NSDecimalNumber* value = [NSDecimalNumber
+      decimalNumberWithString:SysUTF16ToNSString(
+                                  _paymentRequest.details.total.amount.value)];
+  NSNumberFormatter* currencyFormatter =
+      [[[NSNumberFormatter alloc] init] autorelease];
+  [currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
+  [currencyFormatter setCurrencyCode:currencyCode];
+  total.detailText = [currencyFormatter stringFromNumber:value];
+  if (!_paymentRequest.details.display_items.empty()) {
+    total.accessoryType = MDCCollectionViewCellAccessoryDisclosureIndicator;
+    total.accessibilityTraits |= UIAccessibilityTraitButton;
+  }
+  [model addItem:total toSectionWithIdentifier:SectionIdentifierSummary];
+
+  // Shipping section.
+  [model addSectionWithIdentifier:SectionIdentifierShipping];
+  CollectionViewTextItem* shippingTitle = [[[CollectionViewTextItem alloc]
+      initWithType:ItemTypeShippingTitle] autorelease];
+  shippingTitle.text =
+      l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_SHIPPING_ADDRESS_HEADER);
+  [model setHeader:shippingTitle
+      forSectionWithIdentifier:SectionIdentifierShipping];
+
+  CollectionViewItem* shippingItem = nil;
+  if (_selectedShippingAddress) {
+    _selectedShippingAddressItem = [[[ShippingAddressItem alloc]
+        initWithType:ItemTypeShippingAddress] autorelease];
+    shippingItem = _selectedShippingAddressItem;
+    [self fillShippingAddressItem:_selectedShippingAddressItem
+                      withAddress:_selectedShippingAddress];
+    _selectedShippingAddressItem.accessoryType =
+        MDCCollectionViewCellAccessoryDisclosureIndicator;
+
+  } else {
+    CollectionViewDetailItem* addAddressItem =
+        [[[CollectionViewDetailItem alloc]
+            initWithType:ItemTypeAddShippingAddress] autorelease];
+    shippingItem = addAddressItem;
+    addAddressItem.text = l10n_util::GetNSString(
+        IDS_IOS_PAYMENT_REQUEST_SHIPPING_ADDRESS_SELECTION_TITLE);
+    addAddressItem.detailText = [l10n_util::GetNSString(
+        IDS_IOS_PAYMENT_REQUEST_ADD_SHIPPING_ADDRESS_BUTTON)
+        uppercaseStringWithLocale:[NSLocale currentLocale]];
+  }
+  shippingItem.accessibilityTraits |= UIAccessibilityTraitButton;
+  [model addItem:shippingItem
+      toSectionWithIdentifier:SectionIdentifierShipping];
+
+  // Payment method section.
+  [model addSectionWithIdentifier:SectionIdentifierPayment];
+
+  CollectionViewTextItem* paymentTitle = [[[CollectionViewTextItem alloc]
+      initWithType:ItemTypePaymentTitle] autorelease];
+  paymentTitle.text =
+      l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_PAYMENT_METHOD_HEADER);
+  [model setHeader:paymentTitle
+      forSectionWithIdentifier:SectionIdentifierPayment];
+
+  if (_selectedPaymentMethod) {
+    PaymentMethodItem* paymentMethod = [[[PaymentMethodItem alloc]
+        initWithType:ItemTypePaymentMethod] autorelease];
+
+    paymentMethod.methodID = base::SysUTF16ToNSString(
+        _selectedPaymentMethod->TypeAndLastFourDigits());
+    paymentMethod.methodDetail = base::SysUTF16ToNSString(
+        _selectedPaymentMethod->GetRawInfo(autofill::CREDIT_CARD_NAME_FULL));
+
+    int selectedMethodCardTypeIconID =
+        autofill::data_util::GetPaymentRequestData(
+            _selectedPaymentMethod->type())
+            .icon_resource_id;
+    ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
+    paymentMethod.methodTypeIcon =
+        rb.GetNativeImageNamed(selectedMethodCardTypeIconID).ToUIImage();
+
+    paymentMethod.accessoryType =
+        MDCCollectionViewCellAccessoryDisclosureIndicator;
+    paymentMethod.accessibilityTraits |= UIAccessibilityTraitButton;
+    [model addItem:paymentMethod
+        toSectionWithIdentifier:SectionIdentifierPayment];
+  } else {
+    CollectionViewTextItem* paymentMethod = [[[CollectionViewTextItem alloc]
+        initWithType:ItemTypePaymentMethod] autorelease];
+    NSString* selectText =
+        l10n_util::GetNSString(IDS_IOS_PAYMENT_REQUEST_METHOD_SELECTION_BUTTON);
+    paymentMethod.text =
+        [selectText uppercaseStringWithLocale:[NSLocale currentLocale]];
+    paymentMethod.accessibilityTraits |= UIAccessibilityTraitButton;
+    [model addItem:paymentMethod
+        toSectionWithIdentifier:SectionIdentifierPayment];
+  }
+}
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+  self.collectionView.accessibilityIdentifier = kPaymentRequestCollectionViewId;
+
+  // Customize collection view settings.
+  self.styler.cellStyle = MDCCollectionViewCellStyleCard;
+  self.styler.separatorInset =
+      UIEdgeInsetsMake(0, kSeparatorEdgeInset, 0, kSeparatorEdgeInset);
+}
+
+- (void)updateSelectedShippingAddress:
+    (autofill::AutofillProfile*)shippingAddress {
+  [self setSelectedShippingAddress:shippingAddress];
+  [self fillShippingAddressItem:_selectedShippingAddressItem
+                    withAddress:shippingAddress];
+  NSIndexPath* indexPath =
+      [self.collectionViewModel indexPathForItem:_selectedShippingAddressItem
+                         inSectionWithIdentifier:SectionIdentifierShipping];
+  [self.collectionView reloadItemsAtIndexPaths:@[ indexPath ]];
+}
+
+#pragma mark - Helper methods
+
+- (void)fillShippingAddressItem:(ShippingAddressItem*)item
+                    withAddress:(autofill::AutofillProfile*)address {
+  item.name =
+      base::SysUTF16ToNSString(address->GetRawInfo(autofill::NAME_FULL));
+  item.address =
+      payment_request_utils::AddressLabelFromAutofillProfile(address);
+  item.phoneNumber = base::SysUTF16ToNSString(
+      address->GetRawInfo(autofill::PHONE_HOME_WHOLE_NUMBER));
+}
+
+#pragma mark UICollectionViewDataSource
+- (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView
+                 cellForItemAtIndexPath:(nonnull NSIndexPath*)indexPath {
+  UICollectionViewCell* cell =
+      [super collectionView:collectionView cellForItemAtIndexPath:indexPath];
+
+  NSInteger itemType =
+      [self.collectionViewModel itemTypeForIndexPath:indexPath];
+  switch (itemType) {
+    case ItemTypeAddShippingAddress: {
+      CollectionViewDetailCell* detailCell =
+          base::mac::ObjCCastStrict<CollectionViewDetailCell>(cell);
+      detailCell.detailTextLabel.font =
+          [[MDFRobotoFontLoader sharedInstance] mediumFontOfSize:14];
+      detailCell.detailTextLabel.textColor =
+          [[MDCPalette cr_bluePalette] tint700];
+      break;
+    }
+    default:
+      break;
+  }
+  return cell;
+}
+
+#pragma mark UICollectionViewDelegate
+
+- (void)collectionView:(UICollectionView*)collectionView
+    didSelectItemAtIndexPath:(NSIndexPath*)indexPath {
+  [super collectionView:collectionView didSelectItemAtIndexPath:indexPath];
+
+  NSInteger itemType =
+      [self.collectionViewModel itemTypeForIndexPath:indexPath];
+  switch (itemType) {
+    case ItemTypeSummaryTotal:
+      if (!_paymentRequest.details.display_items.empty())
+        [_delegate paymentRequestViewControllerDisplayPaymentItems];
+      break;
+    case ItemTypeShippingAddress:
+    case ItemTypeAddShippingAddress:
+      [_delegate paymentRequestViewControllerSelectShippingAddress];
+      break;
+    case ItemTypePaymentMethod:
+      [_delegate paymentRequestViewControllerSelectPaymentMethod];
+      break;
+    default:
+      NOTREACHED();
+      break;
+  }
+}
+
+#pragma mark MDCCollectionViewStylingDelegate
+
+- (CGFloat)collectionView:(UICollectionView*)collectionView
+    cellHeightAtIndexPath:(NSIndexPath*)indexPath {
+  NSInteger type = [self.collectionViewModel itemTypeForIndexPath:indexPath];
+  if ((type == ItemTypePaymentMethod && _selectedPaymentMethod) ||
+      (type == ItemTypeShippingAddress)) {
+    CollectionViewItem* item =
+        [self.collectionViewModel itemAtIndexPath:indexPath];
+    return [MDCCollectionViewCell
+        cr_preferredHeightForWidth:CGRectGetWidth(collectionView.bounds)
+                           forItem:item];
+  } else {
+    return MDCCellDefaultOneLineHeight;
+  }
+}
+
+// If there are no payment items to display, there is no effect from touching
+// the total so there should not be an ink ripple.
+- (BOOL)collectionView:(UICollectionView*)collectionView
+    hidesInkViewAtIndexPath:(NSIndexPath*)indexPath {
+  NSInteger type = [self.collectionViewModel itemTypeForIndexPath:indexPath];
+  if (type == ItemTypeSummaryTotal &&
+      _paymentRequest.details.display_items.empty()) {
+    return YES;
+  } else {
+    return NO;
+  }
+}
+
+@end