[ios] Creates InfobarSaveCardCoordinator

- Creates InfobarSaveCardCoordinator and implements stop and infobarWasDismissed
which is common between all InfobarCoordinators.
- Creates kInfobarTypeSaveCard and expands infobar_metrics_recorder to handle
this case. (The Histogram suffix is being updated on https://crrev.com/c/1862867)

Bug: 1014652
Change-Id: I86e70ce67f01e63622d83834094fb4bd4fded68e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1862863Reviewed-by: Peter Lee <pkl@chromium.org>
Reviewed-by: Chris Lu <thegreenfrog@chromium.org>
Commit-Queue: Sergio Collazos <sczs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#706490}

ios/chrome/browser/infobars/infobar_metrics_recorder.mm

@@ -51,6 +51,19 @@ const char kInfobarPasswordUpdateModalEventHistogram[] =
 const char kInfobarPasswordUpdateBadgeTappedHistogram[] =
     "Mobile.Messages.Badge.Tapped.InfobarTypePasswordUpdate";
 
+// Histogram names for InfobarTypeSaveCard.
+// Banner.
+const char kInfobarSaveCardBannerEventHistogram[] =
+    "Mobile.Messages.Banner.Event.InfobarTypeSaveCard";
+const char kInfobarSaveCardBannerDismissTypeHistogram[] =
+    "Mobile.Messages.Banner.Dismiss.InfobarTypeSaveCard";
+// Modal.
+const char kInfobarSaveCardModalEventHistogram[] =
+    "Mobile.Messages.Modal.Event.InfobarTypeSaveCard";
+// Badge.
+const char kInfobarSaveCardBadgeTappedHistogram[] =
+    "Mobile.Messages.Badge.Tapped.InfobarTypeSaveCard";
+
 }  // namespace
 
 @interface InfobarMetricsRecorder ()
@@ -83,6 +96,9 @@ const char kInfobarPasswordUpdateBadgeTappedHistogram[] =
       UMA_HISTOGRAM_ENUMERATION(kInfobarPasswordUpdateBannerEventHistogram,
                                 event);
       break;
+    case InfobarType::kInfobarTypeSaveCard:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardBannerEventHistogram, event);
+      break;
   }
 }
 
@@ -100,6 +116,10 @@ const char kInfobarPasswordUpdateBadgeTappedHistogram[] =
       UMA_HISTOGRAM_ENUMERATION(
           kInfobarPasswordUpdateBannerDismissTypeHistogram, dismissType);
       break;
+    case InfobarType::kInfobarTypeSaveCard:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardBannerDismissTypeHistogram,
+                                dismissType);
+      break;
   }
 }
 
@@ -120,6 +140,9 @@ const char kInfobarPasswordUpdateBadgeTappedHistogram[] =
       UMA_HISTOGRAM_ENUMERATION(kInfobarPasswordUpdateModalEventHistogram,
                                 event);
       break;
+    case InfobarType::kInfobarTypeSaveCard:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardModalEventHistogram, event);
+      break;
   }
 }
 
@@ -136,6 +159,9 @@ const char kInfobarPasswordUpdateBadgeTappedHistogram[] =
       UMA_HISTOGRAM_ENUMERATION(kInfobarPasswordUpdateBadgeTappedHistogram,
                                 state);
       break;
+    case InfobarType::kInfobarTypeSaveCard:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardBadgeTappedHistogram, state);
+      break;
   }
 }
 

ios/chrome/browser/infobars/infobar_type.h

@@ -14,6 +14,8 @@ enum class InfobarType {
   kInfobarTypePasswordSave = 1,
   // Message Infobar for Updating a password.
   kInfobarTypePasswordUpdate = 2,
+  // Message Infobar for Saving a Credit Card.
+  kInfobarTypeSaveCard = 3,
 };
 
 #endif  // IOS_CHROME_BROWSER_INFOBARS_INFOBAR_TYPE_H_

ios/chrome/browser/ui/infobars/coordinators/BUILD.gn

@@ -12,9 +12,12 @@ source_set("coordinators") {
     "infobar_coordinator_implementation.h",
     "infobar_password_coordinator.h",
     "infobar_password_coordinator.mm",
+    "infobar_save_card_coordinator.h",
+    "infobar_save_card_coordinator.mm",
   ]
   deps = [
     "//base",
+    "//components/autofill/core/browser",
     "//components/infobars/core",
     "//ios/chrome/app/strings:ios_strings_grit",
     "//ios/chrome/browser/infobars:public",

ios/chrome/browser/ui/infobars/coordinators/infobar_save_card_coordinator.h

+// Copyright 2019 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.
+
+#ifndef IOS_CHROME_BROWSER_UI_INFOBARS_COORDINATORS_INFOBAR_SAVE_CARD_COORDINATOR_H_
+#define IOS_CHROME_BROWSER_UI_INFOBARS_COORDINATORS_INFOBAR_SAVE_CARD_COORDINATOR_H_
+
+#import "ios/chrome/browser/ui/infobars/coordinators/infobar_coordinator.h"
+
+namespace autofill {
+class AutofillSaveCardInfoBarDelegateMobile;
+}  // namespace autofill
+
+// Coordinator that creates and manages the SaveCardInfobar.
+@interface InfobarSaveCardCoordinator : InfobarCoordinator
+
+// Designated initializer. |saveCardInfoBarDelegate| is used to configure the
+// Infobar and subsequently perform related actions.
+- (instancetype)initWithInfoBarDelegate:
+    (autofill::AutofillSaveCardInfoBarDelegateMobile*)saveCardInfoBarDelegate
+    NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)initWithInfoBarDelegate:
+                    (infobars::InfoBarDelegate*)infoBarDelegate
+                           badgeSupport:(BOOL)badgeSupport
+                                   type:(InfobarType)infobarType NS_UNAVAILABLE;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_INFOBARS_COORDINATORS_INFOBAR_SAVE_CARD_COORDINATOR_H_

ios/chrome/browser/ui/infobars/coordinators/infobar_save_card_coordinator.mm

+// Copyright 2019 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/ui/infobars/coordinators/infobar_save_card_coordinator.h"
+
+#include "components/autofill/core/browser/payments/autofill_save_card_infobar_delegate_mobile.h"
+#include "ios/chrome/browser/infobars/infobar_controller_delegate.h"
+#import "ios/chrome/browser/infobars/infobar_type.h"
+#import "ios/chrome/browser/ui/infobars/banners/infobar_banner_view_controller.h"
+#import "ios/chrome/browser/ui/infobars/coordinators/infobar_coordinator_implementation.h"
+#import "ios/chrome/browser/ui/infobars/infobar_container.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@interface InfobarSaveCardCoordinator () <InfobarCoordinatorImplementation>
+
+// InfobarBannerViewController owned by this Coordinator.
+@property(nonatomic, strong) InfobarBannerViewController* bannerViewController;
+// ModalViewController owned by this Coordinator.
+// TODO(crbug.com/1014652): Replace with CustomVC later on.
+@property(nonatomic, strong) UIViewController* modalViewController;
+// Delegate that holds the Infobar information and actions.
+@property(nonatomic, readonly)
+    autofill::AutofillSaveCardInfoBarDelegateMobile* saveCardInfoBarDelegate;
+
+@end
+
+@implementation InfobarSaveCardCoordinator
+// Synthesize since readonly property from superclass is changed to readwrite.
+@synthesize bannerViewController = _bannerViewController;
+// Synthesize since readonly property from superclass is changed to readwrite.
+@synthesize modalViewController = _modalViewController;
+
+- (instancetype)initWithInfoBarDelegate:
+    (autofill::AutofillSaveCardInfoBarDelegateMobile*)saveCardInfoBarDelegate {
+  self = [super initWithInfoBarDelegate:saveCardInfoBarDelegate
+                           badgeSupport:YES
+                                   type:InfobarType::kInfobarTypeSaveCard];
+  if (self) {
+    _saveCardInfoBarDelegate = saveCardInfoBarDelegate;
+  }
+  return self;
+}
+
+#pragma mark - ChromeCoordinator
+
+- (void)start {
+  if (!self.started) {
+    self.started = YES;
+    // TODO(crbug.com/1014652): Configure and present Banner.
+  }
+}
+
+- (void)stop {
+  [super stop];
+  if (self.started) {
+    self.started = NO;
+    // RemoveInfoBar() will delete the InfobarIOS that owns this Coordinator
+    // from memory.
+    self.delegate->RemoveInfoBar();
+    _saveCardInfoBarDelegate = nil;
+    [self.infobarContainer childCoordinatorStopped:self];
+  }
+}
+
+#pragma mark - InfobarCoordinatorImplementation
+
+- (void)performInfobarAction {
+  // TODO(crbug.com/1014652): Continue implementation.
+}
+
+- (void)infobarWasDismissed {
+  // Release these strong ViewControllers at the time of infobar dismissal.
+  self.bannerViewController = nil;
+  self.modalViewController = nil;
+  if (self.saveCardInfoBarDelegate)
+    self.saveCardInfoBarDelegate->InfoBarDismissed();
+}
+
+#pragma mark Banner
+
+- (void)infobarBannerWasPresented {
+  // TODO(crbug.com/1014652): Continue implementation.
+}
+
+- (void)dismissBannerWhenInteractionIsFinished {
+  // TODO(crbug.com/1014652): Continue implementation.
+}
+
+- (void)infobarBannerWillBeDismissed:(BOOL)userInitiated {
+  // TODO(crbug.com/1014652): Continue implementation.
+}
+
+#pragma mark Modal
+
+- (BOOL)configureModalViewController {
+  // TODO(crbug.com/1014652): Continue implementation.
+  return NO;
+}
+
+- (void)infobarModalPresentedFromBanner:(BOOL)presentedFromBanner {
+  // TODO(crbug.com/1014652): Continue implementation.
+}
+
+- (CGFloat)infobarModalHeightForWidth:(CGFloat)width {
+  // TODO(crbug.com/1014652): Continue implementation.
+  return 0.0;
+}
+
+@end