Reland "[Autofill Assistant] Displays the difference in Details if there is any."

This is a reland of 04f43afb

Original change's description:
> [Autofill Assistant] Displays the difference in Details if there is any.
>
> If there is a difference between current and new details it's
> highlighted and two chips are displayed; to allow move forward or
> go back (which closes CCT).
>
> Screenshot: https://screenshot.googleplex.com/kOoC3B1frUp
>
> Bug: 806868
> Change-Id: I95ff09c379398d5a5858aa3947d4c578f39b14c9
> Reviewed-on: https://chromium-review.googlesource.com/c/1335941
> Commit-Queue: Lukasz Suder <lsuder@chromium.org>
> Reviewed-by: Stephane Zermatten <szermatt@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#608759}

Bug: 806868
Change-Id: I419ac2bb513f6fdd496fba40162c92b839952df9
Reviewed-on: https://chromium-review.googlesource.com/c/1340329Reviewed-by: Stephane Zermatten <szermatt@chromium.org>
Commit-Queue: Lukasz Suder <lsuder@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608830}

chrome/android/java/src/org/chromium/chrome/browser/autofill_assistant/AutofillAssistantFacade.java

@@ -13,26 +13,15 @@ import org.chromium.chrome.browser.tabmodel.EmptyTabModelObserver;
 import org.chromium.chrome.browser.tabmodel.TabModel;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabSelectionType;
 
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Date;
 import java.util.HashMap;
-import java.util.Locale;
 import java.util.Map;
 
 /** Facade for starting Autofill Assistant on a custom tab. */
 public class AutofillAssistantFacade {
-    private static final String RFC_3339_FORMAT_WITHOUT_TIMEZONE = "yyyy'-'MM'-'dd'T'HH':'mm':'ss";
-
     /** Prefix for Intent extras relevant to this feature. */
     private static final String INTENT_EXTRA_PREFIX =
             "org.chromium.chrome.browser.autofill_assistant.";
 
-    /** Autofill Assistant Study name. */
-    private static final String STUDY_NAME = "AutofillAssistant";
-
-    /** Variation url parameter name. */
-    private static final String URL_PARAMETER_NAME = "url";
 
     /** Special parameter that enables the feature. */
     private static final String PARAMETER_ENABLED = "ENABLED";
@@ -57,8 +46,7 @@ public class AutofillAssistantFacade {
         controller.setUiDelegateHolder(delegateHolder);
         initTabObservers(activity, delegateHolder);
 
-        AutofillAssistantUiDelegate.Details initialDetails = makeDetailsFromParameters(parameters);
-        controller.maybeUpdateDetails(initialDetails);
+        controller.maybeUpdateDetails(Details.makeFromParameters(parameters));
 
         uiDelegate.startOrSkipInitScreen();
     }
@@ -103,38 +91,4 @@ public class AutofillAssistantFacade {
         }
         return result;
     }
-
-    // TODO(crbug.com/806868): Create a fallback when there are no parameters for details.
-    // TODO(crbug.com/806868): Create a fallback when there are no parameters for details.
-    private static AutofillAssistantUiDelegate.Details makeDetailsFromParameters(
-            Map<String, String> parameters) {
-        String title = "";
-        String description = "";
-        Date date = null;
-        for (String key : parameters.keySet()) {
-            if (key.contains("E_NAME")) {
-                title = parameters.get(key);
-                continue;
-            }
-
-            if (key.contains("R_NAME")) {
-                description = parameters.get(key);
-                continue;
-            }
-
-            if (key.contains("DATETIME")) {
-                try {
-                    // The parameter contains the timezone shift from the current location, that we
-                    // don't care about.
-                    date = new SimpleDateFormat(RFC_3339_FORMAT_WITHOUT_TIMEZONE, Locale.ROOT)
-                                   .parse(parameters.get(key));
-                } catch (ParseException e) {
-                    // Ignore.
-                }
-            }
-        }
-
-        return new AutofillAssistantUiDelegate.Details(
-                title, /* url= */ "", date, description, /* isFinal= */ false);
-    }
 }

chrome/android/java/src/org/chromium/chrome/browser/autofill_assistant/AutofillAssistantUiController.java

@@ -24,6 +24,7 @@ import org.chromium.payments.mojom.PaymentOptions;
 
 import java.util.ArrayList;
 import java.util.Calendar;
+import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
@@ -34,13 +35,6 @@ import java.util.Map;
  */
 @JNINamespace("autofill_assistant")
 public class AutofillAssistantUiController implements AutofillAssistantUiDelegate.Client {
-    /** Prefix for Intent extras relevant to this feature. */
-    private static final String INTENT_EXTRA_PREFIX =
-            "org.chromium.chrome.browser.autofill_assistant.";
-
-    /** Special parameter that enables the feature. */
-    private static final String PARAMETER_ENABLED = "ENABLED";
-
     /** OAuth2 scope that RPCs require. */
     private static final String AUTH_TOKEN_TYPE =
             "oauth2:https://www.googleapis.com/auth/userinfo.profile";
@@ -49,8 +43,7 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
     private final String mInitialUrl;
 
     // TODO(crbug.com/806868): Move mCurrentDetails and mStatusMessage to a Model (refactor to MVC).
-    private AutofillAssistantUiDelegate.Details mCurrentDetails =
-            AutofillAssistantUiDelegate.Details.getEmptyDetails();
+    private Details mCurrentDetails = Details.EMPTY_DETAILS;
     private String mStatusMessage;
 
     /** Native pointer to the UIController. */
@@ -83,6 +76,7 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
             CustomTabActivity activity, Map<String, String> parameters) {
         mWebContents = activity.getActivityTab().getWebContents();
         mInitialUrl = activity.getInitialIntent().getDataString();
+
         mUiControllerAndroid =
                 nativeInit(mWebContents, parameters.keySet().toArray(new String[parameters.size()]),
                         parameters.values().toArray(new String[parameters.size()]),
@@ -112,7 +106,7 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
     }
 
     @Override
-    public AutofillAssistantUiDelegate.Details getDetails() {
+    public Details getDetails() {
         return mCurrentDetails;
     }
 
@@ -151,6 +145,12 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
         nativeOnCardSelected(mUiControllerAndroid, guid);
     }
 
+    @Override
+    public void onDetailsAcknowledged(Details displayedDetails, boolean canContinue) {
+        mCurrentDetails = displayedDetails;
+        nativeOnShowDetails(mUiControllerAndroid, canContinue);
+    }
+
     @Override
     public String getDebugContext() {
         return nativeOnRequestDebugContext(mUiControllerAndroid);
@@ -197,6 +197,11 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
         mUiDelegateHolder.shutdown();
     }
 
+    @CalledByNative
+    private void onCloseCustomTab() {
+        mUiDelegateHolder.closeCustomTab();
+    }
+
     @CalledByNative
     private void onShutdownGracefully() {
         mUiDelegateHolder.enterGracefulShutdownMode();
@@ -272,21 +277,16 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
     /**
      * Updates the currently shown details.
      *
-     * @return false if details were rejected.
+     * @param newDetails details to display.
      */
-    boolean maybeUpdateDetails(AutofillAssistantUiDelegate.Details newDetails) {
-        if (!mCurrentDetails.isSimilarTo(newDetails)) {
-            return false;
-        }
-
+    void maybeUpdateDetails(Details newDetails) {
         if (mCurrentDetails.isEmpty() && newDetails.isEmpty()) {
             // No update on UI needed.
-            return true;
+            nativeOnShowDetails(mUiControllerAndroid, /* canContinue= */ true);
         }
 
-        mCurrentDetails = AutofillAssistantUiDelegate.Details.merge(mCurrentDetails, newDetails);
-        mUiDelegateHolder.performUiOperation(uiDelegate -> uiDelegate.showDetails(mCurrentDetails));
-        return true;
+        Details mergedDetails = Details.merge(mCurrentDetails, newDetails);
+        mUiDelegateHolder.performUiOperation(uiDelegate -> uiDelegate.showDetails(mergedDetails));
     }
 
     @CalledByNative
@@ -295,7 +295,7 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
     }
 
     @CalledByNative
-    private boolean onShowDetails(String title, String url, String description, int year, int month,
+    private void onShowDetails(String title, String url, String description, int year, int month,
             int day, int hour, int minute, int second) {
         Date date;
         if (year > 0 && month > 0 && day > 0 && hour >= 0 && minute >= 0 && second >= 0) {
@@ -308,8 +308,8 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
             date = null;
         }
 
-        return maybeUpdateDetails(new AutofillAssistantUiDelegate.Details(
-                title, url, date, description, /* isFinal= */ true));
+        maybeUpdateDetails(new Details(
+                title, url, date, description, /* isFinal= */ true, Collections.emptySet()));
     }
 
     @CalledByNative
@@ -449,6 +449,7 @@ public class AutofillAssistantUiController implements AutofillAssistantUiDelegat
     private native void nativeOnScriptSelected(long nativeUiControllerAndroid, String scriptPath);
     private native void nativeOnAddressSelected(long nativeUiControllerAndroid, String guid);
     private native void nativeOnCardSelected(long nativeUiControllerAndroid, String guid);
+    private native void nativeOnShowDetails(long nativeUiControllerAndroid, boolean canContinue);
     private native void nativeOnGetPaymentInformation(long nativeUiControllerAndroid,
             boolean succeed, @Nullable PersonalDataManager.CreditCard card,
             @Nullable PersonalDataManager.AutofillProfile address, @Nullable String payerName,

chrome/android/java/src/org/chromium/chrome/browser/autofill_assistant/Details.java

+// Copyright 2018 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.
+
+package org.chromium.chrome.browser.autofill_assistant;
+
+import android.support.annotation.Nullable;
+
+import org.json.JSONObject;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Java side equivalent of autofill_assistant::DetailsProto.
+ */
+class Details {
+    enum DetailsField { TITLE, URL, DATE, DESCRIPTION, IS_FINAL }
+
+    private final String mTitle;
+    private final String mUrl;
+    @Nullable
+    private final Date mDate;
+    private final String mDescription;
+    private final boolean mIsFinal;
+    /** Contains the fields that have changed when merging with other Details object. */
+    private final Set<DetailsField> mFieldsChanged;
+    // NOTE: When adding a new field, update the isEmpty method.
+
+    static final Details EMPTY_DETAILS =
+            new Details("", "", null, "", false, Collections.emptySet());
+
+    private static final String RFC_3339_FORMAT_WITHOUT_TIMEZONE = "yyyy'-'MM'-'dd'T'HH':'mm':'ss";
+
+    Details(String title, String url, @Nullable Date date, String description, boolean isFinal,
+            Set<DetailsField> fieldsChanged) {
+        this.mTitle = title;
+        this.mUrl = url;
+        this.mDate = date;
+        this.mDescription = description;
+        this.mIsFinal = isFinal;
+        this.mFieldsChanged = fieldsChanged;
+    }
+
+    String getTitle() {
+        return mTitle;
+    }
+
+    String getUrl() {
+        return mUrl;
+    }
+
+    @Nullable
+    Date getDate() {
+        return mDate;
+    }
+
+    String getDescription() {
+        return mDescription;
+    }
+
+    JSONObject toJSONObject() {
+        // Details are part of the feedback form, hence they need a JSON representation.
+        Map<String, String> movieDetails = new HashMap<>();
+        movieDetails.put("title", mTitle);
+        movieDetails.put("url", mUrl);
+        if (mDate != null) movieDetails.put("date", mDate.toString());
+        movieDetails.put("description", mDescription);
+        return new JSONObject(movieDetails);
+    }
+
+    /**
+     * Whether the details are not subject to change anymore. If set to false the animated
+     * placeholders will be displayed in place of missing data.
+     */
+    boolean isFinal() {
+        return mIsFinal;
+    }
+
+    Set<DetailsField> getFieldsChanged() {
+        return mFieldsChanged;
+    }
+
+    boolean isEmpty() {
+        return mTitle.isEmpty() && mUrl.isEmpty() && mDescription.isEmpty() && mDate == null;
+    }
+
+    // TODO(crbug.com/806868): Create a fallback when there are no parameters for details.
+    static Details makeFromParameters(Map<String, String> parameters) {
+        String title = "";
+        String description = "";
+        Date date = null;
+        for (String key : parameters.keySet()) {
+            if (key.contains("E_NAME")) {
+                title = parameters.get(key);
+                continue;
+            }
+
+            if (key.contains("R_NAME")) {
+                description = parameters.get(key);
+                continue;
+            }
+
+            if (key.contains("DATETIME")) {
+                try {
+                    // The parameter contains the timezone shift from the current location, that we
+                    // don't care about.
+                    date = new SimpleDateFormat(RFC_3339_FORMAT_WITHOUT_TIMEZONE, Locale.ROOT)
+                                   .parse(parameters.get(key));
+                } catch (ParseException e) {
+                    // Ignore.
+                }
+            }
+        }
+
+        return new Details(title, /* url= */ "", date, description, /* isFinal= */ false,
+                /* fieldsChanged= */ Collections.emptySet());
+    }
+
+    /**
+     * Merges {@param oldDetails} with the {@param newDetails} filling the missing fields.
+     *
+     * <p>The distinction is important, as the fields from old version take precedence, with the
+     * exception of date and isFinal fields.
+     *
+     * <p>If {@param oldDetails} are empty copy of {@param newDetails} with empty
+     * {@code changedFields} is returned
+     */
+    static Details merge(Details oldDetails, Details newDetails) {
+        if (oldDetails.isEmpty()) {
+            return new Details(newDetails.getTitle(), newDetails.getUrl(), newDetails.getDate(),
+                    newDetails.getDescription(), newDetails.isFinal(), Collections.emptySet());
+        }
+
+        Set<DetailsField> changedFields = new HashSet<>();
+
+        // TODO(crbug.com/806868): Change title if mid doesn't match.
+        String title =
+                oldDetails.getTitle().isEmpty() ? newDetails.getTitle() : oldDetails.getTitle();
+        String url = oldDetails.getUrl().isEmpty() ? newDetails.getUrl() : oldDetails.getUrl();
+
+        Date date = oldDetails.getDate();
+        if (newDetails.getDate() != null && oldDetails.getDate() != null
+                && !newDetails.getDate().equals(oldDetails.getDate())) {
+            changedFields.add(DetailsField.DATE);
+            date = newDetails.getDate();
+        }
+
+        String description = oldDetails.getDescription().isEmpty() ? newDetails.getDescription()
+                                                                   : oldDetails.getDescription();
+
+        boolean isFinal = newDetails.isFinal();
+        return new Details(title, url, date, description, isFinal, changedFields);
+    }
+}
\ No newline at end of file

chrome/android/java/src/org/chromium/chrome/browser/autofill_assistant/FeedbackContext.java

@@ -14,8 +14,8 @@ import org.chromium.chrome.browser.autofill_assistant.AutofillAssistantUiDelegat
  * Automatically extracts context information and serializes it in JSON form.
  */
 class FeedbackContext extends JSONObject {
-    static String buildContextString(ChromeActivity activity, Client client,
-            AutofillAssistantUiDelegate.Details details, String statusMessage, int indentSpaces) {
+    static String buildContextString(ChromeActivity activity, Client client, Details details,
+            String statusMessage, int indentSpaces) {
         try {
             return new FeedbackContext(activity, client, details, statusMessage)
                     .toString(indentSpaces);
@@ -24,9 +24,8 @@ class FeedbackContext extends JSONObject {
         }
     }
 
-    private FeedbackContext(ChromeActivity activity, Client client,
-            AutofillAssistantUiDelegate.Details details, String statusMessage)
-            throws JSONException {
+    private FeedbackContext(ChromeActivity activity, Client client, Details details,
+            String statusMessage) throws JSONException {
         addActivityInformation(activity);
         addClientContext(client);
         put("movie", details.toJSONObject());

chrome/android/java/src/org/chromium/chrome/browser/autofill_assistant/UiDelegateHolder.java

@@ -129,6 +129,14 @@ class UiDelegateHolder {
         mUiController.unsafeDestroy();
     }
 
+    /**
+     * Closes the Chrome Custom Tab.
+     */
+    void closeCustomTab() {
+        shutdown();
+        mUiDelegate.closeCustomTab();
+    }
+
     /**
      * Pause all UI operations such that they can potentially be ran later using {@link
      * #unpauseUiOperations()}.

chrome/android/java_sources.gni

@@ -130,6 +130,7 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/autofill_assistant/AutofillAssistantStudy.java",
   "java/src/org/chromium/chrome/browser/autofill_assistant/AutofillAssistantUiController.java",
   "java/src/org/chromium/chrome/browser/autofill_assistant/AutofillAssistantUiDelegate.java",
+  "java/src/org/chromium/chrome/browser/autofill_assistant/Details.java",
   "java/src/org/chromium/chrome/browser/autofill_assistant/FeedbackContext.java",
   "java/src/org/chromium/chrome/browser/autofill_assistant/UiDelegateHolder.java",
   "java/src/org/chromium/chrome/browser/autofill_assistant/ui/BottomBarAnimations.java",

chrome/browser/android/autofill_assistant/ui_controller_android.cc

@@ -131,6 +131,11 @@ void UiControllerAndroid::ShutdownGracefully() {
       AttachCurrentThread(), java_autofill_assistant_ui_controller_);
 }
 
+void UiControllerAndroid::CloseCustomTab() {
+  Java_AutofillAssistantUiController_onCloseCustomTab(
+      AttachCurrentThread(), java_autofill_assistant_ui_controller_);
+}
+
 void UiControllerAndroid::UpdateScripts(
     const std::vector<ScriptHandle>& scripts) {
   std::vector<std::string> script_paths;
@@ -254,6 +259,14 @@ void UiControllerAndroid::OnAccessToken(
   }
 }
 
+void UiControllerAndroid::OnShowDetails(JNIEnv* env,
+                                        const JavaParamRef<jobject>& jcaller,
+                                        jboolean jcan_continue) {
+  if (show_details_callback_) {
+    std::move(show_details_callback_).Run(jcan_continue);
+  }
+}
+
 base::android::ScopedJavaLocalRef<jstring>
 UiControllerAndroid::GetPrimaryAccountName(
     JNIEnv* env,
@@ -312,7 +325,9 @@ void UiControllerAndroid::HideDetails() {
       AttachCurrentThread(), java_autofill_assistant_ui_controller_);
 }
 
-bool UiControllerAndroid::ShowDetails(const DetailsProto& details) {
+void UiControllerAndroid::ShowDetails(const DetailsProto& details,
+                                      base::OnceCallback<void(bool)> callback) {
+  show_details_callback_ = std::move(callback);
   int year = details.datetime().date().year();
   int month = details.datetime().date().month();
   int day = details.datetime().date().day();

chrome/browser/android/autofill_assistant/ui_controller_android.h

@@ -42,6 +42,7 @@ class UiControllerAndroid : public UiController,
   void HideOverlay() override;
   void Shutdown() override;
   void ShutdownGracefully() override;
+  void CloseCustomTab() override;
   void UpdateScripts(const std::vector<ScriptHandle>& scripts) override;
   void ChooseAddress(
       base::OnceCallback<void(const std::string&)> callback) override;
@@ -53,7 +54,8 @@ class UiControllerAndroid : public UiController,
       const std::string& title,
       const std::vector<std::string>& supported_basic_card_networks) override;
   void HideDetails() override;
-  bool ShowDetails(const DetailsProto& details) override;
+  void ShowDetails(const DetailsProto& details,
+                   base::OnceCallback<void(bool)> callback) override;
   void ShowProgressBar(int progress, const std::string& message) override;
   void HideProgressBar() override;
   void UpdateTouchableArea(bool enabled,
@@ -108,6 +110,9 @@ class UiControllerAndroid : public UiController,
                      const base::android::JavaParamRef<jobject>& jcaller,
                      jboolean success,
                      const base::android::JavaParamRef<jstring>& access_token);
+  void OnShowDetails(JNIEnv* env,
+                     const base::android::JavaParamRef<jobject>& jcaller,
+                     jboolean success);
   base::android::ScopedJavaLocalRef<jstring> GetPrimaryAccountName(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& jcaller);
@@ -129,6 +134,7 @@ class UiControllerAndroid : public UiController,
   std::unique_ptr<AccessTokenFetcher> access_token_fetcher_;
   base::OnceCallback<void(bool, const std::string&)>
       fetch_access_token_callback_;
+  base::OnceCallback<void(bool)> show_details_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(UiControllerAndroid);
 };

components/autofill_assistant/browser/actions/action_delegate.h

@@ -138,6 +138,9 @@ class ActionDelegate {
   // Shut down Autofill Assistant at the end of the current script.
   virtual void Shutdown() = 0;
 
+  // Shut down Autofill Assistant and close the CCT.
+  virtual void CloseCustomTab() = 0;
+
   // Restart Autofill Assistant at the end of the current script with a cleared
   // state.
   virtual void Restart() = 0;
@@ -159,7 +162,8 @@ class ActionDelegate {
   virtual void HideDetails() = 0;
 
   // Show contextual information.
-  virtual bool ShowDetails(const DetailsProto& details) = 0;
+  virtual void ShowDetails(const DetailsProto& details,
+                           base::OnceCallback<void(bool)> callback) = 0;
 
   // Show the progress bar with |message| and set it at |progress|%.
   virtual void ShowProgressBar(int progress, const std::string& message) = 0;

components/autofill_assistant/browser/actions/mock_action_delegate.h

@@ -122,13 +122,16 @@ class MockActionDelegate : public ActionDelegate {
            base::OnceCallback<void(bool, const std::string&)> callback));
   MOCK_METHOD1(LoadURL, void(const GURL& url));
   MOCK_METHOD0(Shutdown, void());
+  MOCK_METHOD0(CloseCustomTab, void());
   MOCK_METHOD0(Restart, void());
   MOCK_METHOD0(GetClientMemory, ClientMemory*());
   MOCK_METHOD0(GetPersonalDataManager, autofill::PersonalDataManager*());
   MOCK_METHOD0(GetWebContents, content::WebContents*());
   MOCK_METHOD1(StopCurrentScriptAndShutdown, void(const std::string& message));
   MOCK_METHOD0(HideDetails, void());
-  MOCK_METHOD1(ShowDetails, bool(const DetailsProto& details));
+  MOCK_METHOD2(ShowDetails,
+               void(const DetailsProto& details,
+                    base::OnceCallback<void(bool)> callback));
   MOCK_METHOD2(ShowProgressBar, void(int progress, const std::string& message));
   MOCK_METHOD0(HideProgressBar, void());
   MOCK_METHOD0(ShowOverlay, void());

components/autofill_assistant/browser/actions/show_details_action.cc

@@ -11,7 +11,8 @@
 
 namespace autofill_assistant {
 
-ShowDetailsAction::ShowDetailsAction(const ActionProto& proto) : Action(proto) {
+ShowDetailsAction::ShowDetailsAction(const ActionProto& proto)
+    : Action(proto), weak_ptr_factory_(this) {
   DCHECK(proto_.has_show_details());
 }
 
@@ -24,9 +25,20 @@ void ShowDetailsAction::InternalProcessAction(ActionDelegate* delegate,
     UpdateProcessedAction(ACTION_APPLIED);
     std::move(callback).Run(std::move(processed_action_proto_));
   } else {
-    bool result = delegate->ShowDetails(proto_.show_details().details());
-    UpdateProcessedAction(result ? ACTION_APPLIED : OTHER_ACTION_STATUS);
-    std::move(callback).Run(std::move(processed_action_proto_));
+    delegate->ShowDetails(proto_.show_details().details(),
+                          base::BindOnce(&ShowDetailsAction::OnShowDetails,
+                                         weak_ptr_factory_.GetWeakPtr(),
+                                         std::move(callback), delegate));
+  }
+}
+
+void ShowDetailsAction::OnShowDetails(ProcessActionCallback callback,
+                                      ActionDelegate* delegate,
+                                      bool can_continue) {
+  if (!can_continue) {
+    delegate->CloseCustomTab();
   }
+  UpdateProcessedAction(ACTION_APPLIED);
+  std::move(callback).Run(std::move(processed_action_proto_));
 }
 }  // namespace autofill_assistant

components/autofill_assistant/browser/actions/show_details_action.h

@@ -6,6 +6,7 @@
 #define COMPONENTS_AUTOFILL_ASSISTANT_BROWSER_ACTIONS_SHOW_DETAILS_ACTION_H_
 
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "components/autofill_assistant/browser/actions/action.h"
 
 namespace autofill_assistant {
@@ -19,6 +20,11 @@ class ShowDetailsAction : public Action {
   // Overrides Action:
   void InternalProcessAction(ActionDelegate* delegate,
                              ProcessActionCallback callback) override;
+  void OnShowDetails(ProcessActionCallback callback,
+                     ActionDelegate* delegate,
+                     bool can_continue);
+
+  base::WeakPtrFactory<ShowDetailsAction> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ShowDetailsAction);
 };

components/autofill_assistant/browser/controller.cc

@@ -257,6 +257,10 @@ void Controller::OnScriptExecuted(const std::string& script_path,
       GetUiController()->ShutdownGracefully();
       return;
 
+    case ScriptExecutor::CLOSE_CUSTOM_TAB:
+      GetUiController()->CloseCustomTab();
+      return;
+
     case ScriptExecutor::RESTART:
       script_tracker_ = std::make_unique<ScriptTracker>(/* delegate= */ this,
                                                         /* listener= */ this);

components/autofill_assistant/browser/mock_ui_controller.h

@@ -27,6 +27,7 @@ class MockUiController : public UiController {
   MOCK_METHOD0(HideOverlay, void());
   MOCK_METHOD0(Shutdown, void());
   MOCK_METHOD0(ShutdownGracefully, void());
+  MOCK_METHOD0(CloseCustomTab, void());
   MOCK_METHOD1(UpdateScripts, void(const std::vector<ScriptHandle>& scripts));
 
   void ChooseAddress(
@@ -50,7 +51,9 @@ class MockUiController : public UiController {
            const std::string& title,
            const std::vector<std::string>& supported_basic_card_networks));
   MOCK_METHOD0(HideDetails, void());
-  MOCK_METHOD1(ShowDetails, bool(const DetailsProto& details));
+  MOCK_METHOD2(ShowDetails,
+               void(const DetailsProto& details,
+                    base::OnceCallback<void(bool)> callback));
   MOCK_METHOD2(ShowProgressBar, void(int progress, const std::string& message));
   MOCK_METHOD0(HideProgressBar, void());
   MOCK_METHOD2(UpdateTouchableArea,

components/autofill_assistant/browser/script_executor.cc

@@ -205,6 +205,11 @@ void ScriptExecutor::Shutdown() {
   }
 }
 
+void ScriptExecutor::CloseCustomTab() {
+  at_end_ = CLOSE_CUSTOM_TAB;
+  should_stop_script_ = true;
+}
+
 void ScriptExecutor::Restart() {
   at_end_ = RESTART;
 }
@@ -234,8 +239,10 @@ void ScriptExecutor::HideDetails() {
   delegate_->GetUiController()->HideDetails();
 }
 
-bool ScriptExecutor::ShowDetails(const DetailsProto& details) {
-  return delegate_->GetUiController()->ShowDetails(details);
+void ScriptExecutor::ShowDetails(const DetailsProto& details,
+                                 base::OnceCallback<void(bool)> callback) {
+  return delegate_->GetUiController()->ShowDetails(details,
+                                                   std::move(callback));
 }
 
 void ScriptExecutor::OnGetActions(bool result, const std::string& response) {

components/autofill_assistant/browser/script_executor.h

@@ -52,6 +52,9 @@ class ScriptExecutor : public ActionDelegate {
     // Shut down Autofill Assistant after a delay.
     SHUTDOWN_GRACEFULLY,
 
+    // Shut down Autofill Assistant and CCT.
+    CLOSE_CUSTOM_TAB,
+
     // Reset all state and restart.
     RESTART
   };
@@ -115,13 +118,15 @@ class ScriptExecutor : public ActionDelegate {
       base::OnceCallback<void(bool, const std::string&)> callback) override;
   void LoadURL(const GURL& url) override;
   void Shutdown() override;
+  void CloseCustomTab() override;
   void Restart() override;
   ClientMemory* GetClientMemory() override;
   autofill::PersonalDataManager* GetPersonalDataManager() override;
   content::WebContents* GetWebContents() override;
   void StopCurrentScriptAndShutdown(const std::string& message) override;
   void HideDetails() override;
-  bool ShowDetails(const DetailsProto& details) override;
+  void ShowDetails(const DetailsProto& details,
+                   base::OnceCallback<void(bool)> callback) override;
   void ShowProgressBar(int progress, const std::string& message) override;
   void HideProgressBar() override;
   void ShowOverlay() override;

components/autofill_assistant/browser/ui_controller.h

@@ -46,6 +46,9 @@ class UiController {
   // Warning: this indirectly deletes the caller.
   virtual void ShutdownGracefully() = 0;
 
+  // Shuts down Autofill Assistant and closes CCT.
+  virtual void CloseCustomTab() = 0;
+
   // Update the list of scripts in the UI.
   virtual void UpdateScripts(const std::vector<ScriptHandle>& scripts) = 0;
 
@@ -80,7 +83,8 @@ class UiController {
   // not similar to the current one.
   // TODO(806868): Pass details to the native side instead of comparing on the
   // Java side.
-  virtual bool ShowDetails(const DetailsProto& details) = 0;
+  virtual void ShowDetails(const DetailsProto& details,
+                           base::OnceCallback<void(bool)> callback) = 0;
 
   // Show the progress bar with |message| and set it at |progress|%.
   virtual void ShowProgressBar(int progress, const std::string& message) = 0;

components/autofill_assistant_strings.grdp

@@ -19,5 +19,11 @@
     <message name="IDS_AUTOFILL_ASSISTANT_TERMS" desc="The text for the terms and service acceptance checkbox. Sentence-cased." formatter_data="android_java">
       I know the terms and conditions, privacy policy and right of withdrawal of <ph name="BEGIN_BOLD">&lt;b&gt;</ph><ph name="ORIGIN">%1$s<ex>google.com</ex></ph><ph name="END_BOLD">&lt;/b&gt;</ph> (leave unchecked to read).
     </message>
+    <message name="IDS_AUTOFILL_ASSISTANT_DETAILS_DIFFER" desc="Shown as Status Message when details differ." formatter_data="android_java">
+      The movie screening is different, do you want to continue?
+    </message>
+    <message name="IDS_AUTOFILL_ASSISTANT_DETAILS_DIFFER_GO_BACK" desc="Shown on a button allowing going back when details differ." formatter_data="android_java">
+      Go back
+    </message>
   </if>
 </grit-part>