[ios] Create InfobarTranslateCoordinator

This change creates InfobarTranslateCoordinator and
implements the basic methods of an InfobarCoordinator and TranslateInfoBarDelegate.
It also creates kInfobarTypeTranslate and expands infobar_metrics_recorder to handle
this case.

Bug: 1014959
Change-Id: I994abf7205f405da3aa20f0fb726a3701b6a145d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1864716Reviewed-by: Sergio Collazos <sczs@chromium.org>
Reviewed-by: Peter Lee <pkl@chromium.org>
Commit-Queue: Chris Lu <thegreenfrog@chromium.org>
Cr-Commit-Position: refs/heads/master@{#707491}

ios/chrome/browser/infobars/infobar_metrics_recorder.mm

@@ -64,6 +64,19 @@ const char kInfobarSaveCardModalEventHistogram[] =
 const char kInfobarSaveCardBadgeTappedHistogram[] =
     "Mobile.Messages.Badge.Tapped.InfobarTypeSaveCard";
 
+// Histogram names for InfobarTypeTranslate.
+// Banner.
+const char kInfobarTranslateBannerEventHistogram[] =
+    "Mobile.Messages.Banner.Event.InfobarTypeTranslate";
+const char kInfobarTranslateBannerDismissTypeHistogram[] =
+    "Mobile.Messages.Banner.Dismiss.InfobarTypeTranslate";
+// Modal.
+const char kInfobarTranslateModalEventHistogram[] =
+    "Mobile.Messages.Modal.Event.InfobarTypeTranslate";
+// Badge.
+const char kInfobarTranslateBadgeTappedHistogram[] =
+    "Mobile.Messages.Badge.Tapped.InfobarTypeTranslate";
+
 }  // namespace
 
 @interface InfobarMetricsRecorder ()
@@ -99,6 +112,9 @@ const char kInfobarSaveCardBadgeTappedHistogram[] =
     case InfobarType::kInfobarTypeSaveCard:
       UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardBannerEventHistogram, event);
       break;
+    case InfobarType::kInfobarTypeTranslate:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarTranslateBannerEventHistogram, event);
+      break;
   }
 }
 
@@ -120,6 +136,10 @@ const char kInfobarSaveCardBadgeTappedHistogram[] =
       UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardBannerDismissTypeHistogram,
                                 dismissType);
       break;
+    case InfobarType::kInfobarTypeTranslate:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarTranslateBannerDismissTypeHistogram,
+                                dismissType);
+      break;
   }
 }
 
@@ -143,6 +163,9 @@ const char kInfobarSaveCardBadgeTappedHistogram[] =
     case InfobarType::kInfobarTypeSaveCard:
       UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardModalEventHistogram, event);
       break;
+    case InfobarType::kInfobarTypeTranslate:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarTranslateModalEventHistogram, event);
+      break;
   }
 }
 
@@ -162,6 +185,9 @@ const char kInfobarSaveCardBadgeTappedHistogram[] =
     case InfobarType::kInfobarTypeSaveCard:
       UMA_HISTOGRAM_ENUMERATION(kInfobarSaveCardBadgeTappedHistogram, state);
       break;
+    case InfobarType::kInfobarTypeTranslate:
+      UMA_HISTOGRAM_ENUMERATION(kInfobarTranslateBadgeTappedHistogram, state);
+      break;
   }
 }
 

ios/chrome/browser/infobars/infobar_type.h

@@ -16,6 +16,8 @@ enum class InfobarType {
   kInfobarTypePasswordUpdate = 2,
   // Message Infobar for Saving a Credit Card.
   kInfobarTypeSaveCard = 3,
+  // Message Infobar for Translating a page.
+  kInfobarTypeTranslate = 4,
 };
 
 #endif  // IOS_CHROME_BROWSER_INFOBARS_INFOBAR_TYPE_H_

ios/chrome/browser/translate/BUILD.gn

@@ -2,6 +2,18 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+source_set("public") {
+  configs += [ "//build/config/compiler:enable_arc" ]
+  sources = [
+    "translate_infobar_delegate_observer_bridge.h",
+    "translate_infobar_delegate_observer_bridge.mm",
+  ]
+  deps = [
+    "//base",
+    "//components/translate/core/browser",
+  ]
+}
+
 source_set("translate") {
   configs += [ "//build/config/compiler:enable_arc" ]
   sources = [
@@ -15,8 +27,6 @@ source_set("translate") {
     "translate_accept_languages_factory.h",
     "translate_infobar_controller.h",
     "translate_infobar_controller.mm",
-    "translate_infobar_delegate_observer_bridge.h",
-    "translate_infobar_delegate_observer_bridge.mm",
     "translate_infobar_tags.h",
     "translate_option_selection_delegate.h",
     "translate_option_selection_handler.h",
@@ -28,6 +38,7 @@ source_set("translate") {
     "translate_service_ios.mm",
   ]
   deps = [
+    ":public",
     "//base",
     "//components/infobars/core",
     "//components/keyed_service/core",
@@ -69,6 +80,7 @@ source_set("unit_tests") {
     "translate_service_ios_unittest.cc",
   ]
   deps = [
+    ":public",
     ":translate",
     "//base",
     "//base/test:test_support",

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

@@ -14,16 +14,20 @@ source_set("coordinators") {
     "infobar_password_coordinator.mm",
     "infobar_save_card_coordinator.h",
     "infobar_save_card_coordinator.mm",
+    "infobar_translate_coordinator.h",
+    "infobar_translate_coordinator.mm",
   ]
   deps = [
     "//base",
     "//components/autofill/core/browser",
     "//components/infobars/core",
+    "//components/translate/core/browser",
     "//ios/chrome/app/strings:ios_strings_grit",
     "//ios/chrome/browser/infobars:public",
     "//ios/chrome/browser/infobars:public",
     "//ios/chrome/browser/passwords:infobar_delegates",
     "//ios/chrome/browser/passwords:public",
+    "//ios/chrome/browser/translate:public",
     "//ios/chrome/browser/ui/commands",
     "//ios/chrome/browser/ui/coordinators:chrome_coordinators",
     "//ios/chrome/browser/ui/fullscreen",

ios/chrome/browser/ui/infobars/coordinators/infobar_translate_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_TRANSLATE_COORDINATOR_H_
+#define IOS_CHROME_BROWSER_UI_INFOBARS_COORDINATORS_INFOBAR_TRANSLATE_COORDINATOR_H_
+
+#import "ios/chrome/browser/ui/infobars/coordinators/infobar_coordinator.h"
+
+namespace translate {
+class TranslateInfoBarDelegate;
+}  // namespace translate
+
+// Coordinator that creates and manages the Translate Infobar.
+@interface TranslateInfobarCoordinator : InfobarCoordinator
+
+// Designated initializer. |infoBarDelegate| is used to configure the
+// Infobar and subsequently perform related actions.
+- (instancetype)initWithInfoBarDelegate:
+    (translate::TranslateInfoBarDelegate*)infoBarDelegate
+    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_TRANSLATE_COORDINATOR_H_

ios/chrome/browser/ui/infobars/coordinators/infobar_translate_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_translate_coordinator.h"
+
+#include "components/translate/core/browser/translate_infobar_delegate.h"
+#include "ios/chrome/browser/infobars/infobar_controller_delegate.h"
+#import "ios/chrome/browser/infobars/infobar_type.h"
+#import "ios/chrome/browser/translate/translate_infobar_delegate_observer_bridge.h"
+#import "ios/chrome/browser/ui/infobars/banners/infobar_banner_view_controller.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 TranslateInfobarCoordinator () <TranslateInfobarDelegateObserving> {
+  // Observer to listen for changes to the TranslateStep.
+  std::unique_ptr<TranslateInfobarDelegateObserverBridge>
+      _translateInfobarDelegateObserver;
+}
+
+// Delegate that holds the Translate Infobar information and actions.
+@property(nonatomic, readonly)
+    translate::TranslateInfoBarDelegate* translateInfoBarDelegate;
+
+@end
+
+@implementation TranslateInfobarCoordinator
+
+- (instancetype)initWithInfoBarDelegate:
+    (translate::TranslateInfoBarDelegate*)infoBarDelegate {
+  self = [super initWithInfoBarDelegate:infoBarDelegate
+                           badgeSupport:YES
+                                   type:InfobarType::kInfobarTypeTranslate];
+  if (self) {
+    _translateInfoBarDelegate = infoBarDelegate;
+    _translateInfobarDelegateObserver =
+        std::make_unique<TranslateInfobarDelegateObserverBridge>(
+            infoBarDelegate, self);
+  }
+  return self;
+}
+
+#pragma mark - TranslateInfobarDelegateObserving
+
+- (void)translateInfoBarDelegate:(translate::TranslateInfoBarDelegate*)delegate
+          didChangeTranslateStep:(translate::TranslateStep)step
+                   withErrorType:(translate::TranslateErrors::Type)errorType {
+  // TODO(crbug.com/1014959): implement
+}
+
+- (BOOL)translateInfoBarDelegateDidDismissWithoutInteraction:
+    (translate::TranslateInfoBarDelegate*)delegate {
+  // TODO(crbug.com/1014959): implement
+  return YES;
+}
+
+#pragma mark - ChromeCoordinator
+
+- (void)start {
+  if (!self.started) {
+    self.started = YES;
+    // TODO(crbug.com/1014959): Configure BannerViewController.
+  }
+}
+
+- (void)stop {
+  [super stop];
+  if (self.started) {
+    self.started = NO;
+    // RemoveInfoBar() will delete the InfobarIOS that owns this Coordinator
+    // from memory.
+    self.delegate->RemoveInfoBar();
+    [self.infobarContainer childCoordinatorStopped:self];
+  }
+}
+
+#pragma mark - InfobarCoordinatorImplementation
+
+- (void)performInfobarAction {
+  // TODO(crbug.com/1014959): implement
+}
+
+- (void)infobarWasDismissed {
+  // TODO(crbug.com/1014959): implement
+}
+
+#pragma mark - Banner
+
+- (void)infobarBannerWasPresented {
+  // TODO(crbug.com/1014959): implement
+}
+
+- (void)dismissBannerWhenInteractionIsFinished {
+  // TODO(crbug.com/1014959): implement
+}
+
+- (void)infobarBannerWillBeDismissed:(BOOL)userInitiated {
+  // TODO(crbug.com/1014959): implement
+}
+
+#pragma mark - Modal
+
+- (BOOL)configureModalViewController {
+  // TODO(crbug.com/1014959): implement
+  return NO;
+}
+
+- (void)infobarModalPresentedFromBanner:(BOOL)presentedFromBanner {
+  // TODO(crbug.com/1014959): implement
+}
+
+- (CGFloat)infobarModalHeightForWidth:(CGFloat)width {
+  // TODO(crbug.com/1014959): implement
+  return 0.0;
+}
+
+@end