[WebLayer] Extracts an interface for PaymentResponseHelper

Breaks the current PaymentResponseHelper into 2 parts:
* PaymentResponseHelperInterface: a general interface.
* ChromePaymentResponseHelper: the helper that's used by Chrome, which
  includes the Autofill feature.

With the PaymentResponseHelperInterface, we will create another general
purpose implementation (without Autofill) that can be used by the
WebLayer.

Bug: 1146159

Change-Id: I7cbfbd9486f085179d2298fdf29428fd641217e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2521369
Commit-Queue: Liquan (Max) Gu <maxlg@chromium.org>
Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825193}

chrome/android/chrome_java_sources.gni

@@ -1242,12 +1242,12 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/payments/CardEditor.java",
   "java/src/org/chromium/chrome/browser/payments/ChromePaymentRequestFactory.java",
   "java/src/org/chromium/chrome/browser/payments/ChromePaymentRequestService.java",
+  "java/src/org/chromium/chrome/browser/payments/ChromePaymentResponseHelper.java",
   "java/src/org/chromium/chrome/browser/payments/ContactEditor.java",
   "java/src/org/chromium/chrome/browser/payments/PaymentAppServiceBridge.java",
   "java/src/org/chromium/chrome/browser/payments/PaymentManifestVerifier.java",
   "java/src/org/chromium/chrome/browser/payments/PaymentManifestWebDataService.java",
   "java/src/org/chromium/chrome/browser/payments/PaymentPreferencesUtil.java",
-  "java/src/org/chromium/chrome/browser/payments/PaymentResponseHelper.java",
   "java/src/org/chromium/chrome/browser/payments/ServiceWorkerPaymentAppBridge.java",
   "java/src/org/chromium/chrome/browser/payments/SettingsAutofillAndPaymentsObserver.java",
   "java/src/org/chromium/chrome/browser/payments/ShippingStrings.java",

chrome/android/java/src/org/chromium/chrome/browser/payments/ChromePaymentRequestService.java

@@ -42,6 +42,8 @@ import org.chromium.components.payments.PaymentOptionsUtils;
 import org.chromium.components.payments.PaymentRequestService;
 import org.chromium.components.payments.PaymentRequestServiceUtil;
 import org.chromium.components.payments.PaymentRequestSpec;
+import org.chromium.components.payments.PaymentResponseHelperInterface;
+import org.chromium.components.payments.PaymentResponseHelperInterface.PaymentResponseResultCallback;
 import org.chromium.components.payments.PaymentUIsObserver;
 import org.chromium.components.payments.PaymentValidator;
 import org.chromium.components.payments.Section;
@@ -70,12 +72,11 @@ import java.util.Set;
  * This is the Clank specific parts of {@link PaymentRequest}, with the parts shared with WebLayer
  * living in {@link PaymentRequestService}.
  */
-public class ChromePaymentRequestService
-        implements BrowserPaymentRequest, PaymentApp.AbortCallback,
+public class ChromePaymentRequestService implements BrowserPaymentRequest, PaymentApp.AbortCallback,
                                                     PaymentApp.InstrumentDetailsCallback,
-                   PaymentResponseHelper.PaymentResponseRequesterDelegate,
-                   PaymentDetailsConverter.MethodChecker, PaymentUiService.Delegate,
-                   PaymentUIsObserver {
+                                                    PaymentResponseResultCallback,
+                                                    PaymentDetailsConverter.MethodChecker,
+                                                    PaymentUiService.Delegate, PaymentUIsObserver {
     private static final String TAG = "PaymentRequest";
 
     /**
@@ -119,7 +120,7 @@ public class ChromePaymentRequestService
     private boolean mDidRecordShowEvent;
 
     /** The helper to create and fill the response to send to the merchant. */
-    private PaymentResponseHelper mPaymentResponseHelper;
+    private PaymentResponseHelperInterface mPaymentResponseHelper;
 
     /** A helper to manage the Skip-to-GPay experimental flow. */
     private SkipToGPayHelper mSkipToGPayHelper;
@@ -854,9 +855,9 @@ public class ChromePaymentRequestService
         EditableOption selectedContact = mPaymentUiService.getContactSection() != null
                 ? mPaymentUiService.getContactSection().getSelectedItem()
                 : null;
-        mPaymentResponseHelper = new PaymentResponseHelper(selectedShippingAddress,
+        mPaymentResponseHelper = new ChromePaymentResponseHelper(selectedShippingAddress,
                 selectedShippingOption, selectedContact, selectedPaymentApp, mPaymentOptions,
-                mSkipToGPayHelper != null, this);
+                mSkipToGPayHelper != null);
 
         selectedPaymentApp.setPaymentHandlerHost(getPaymentHandlerHost());
         // Only native apps can use PaymentDetailsUpdateService.
@@ -1113,7 +1114,8 @@ public class ChromePaymentRequestService
 
         mJourneyLogger.setEventOccurred(Event.RECEIVED_INSTRUMENT_DETAILS);
 
-        mPaymentResponseHelper.onPaymentDetailsReceived(methodName, stringifiedDetails, payerData);
+        mPaymentResponseHelper.generatePaymentResponse(
+                methodName, stringifiedDetails, payerData, /*resultCallback=*/this);
     }
 
     @Override

chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentResponseHelper.java → chrome/android/java/src/org/chromium/chrome/browser/payments/ChromePaymentResponseHelper.java

@@ -12,6 +12,7 @@ import org.chromium.components.autofill.EditableOption;
 import org.chromium.components.payments.PayerData;
 import org.chromium.components.payments.PaymentAddressTypeConverter;
 import org.chromium.components.payments.PaymentApp;
+import org.chromium.components.payments.PaymentResponseHelperInterface;
 import org.chromium.payments.mojom.PayerDetail;
 import org.chromium.payments.mojom.PaymentOptions;
 import org.chromium.payments.mojom.PaymentResponse;
@@ -19,49 +20,34 @@ import org.chromium.payments.mojom.PaymentResponse;
 /**
  * The helper class to create and prepare a PaymentResponse.
  */
-public class PaymentResponseHelper implements NormalizedAddressRequestDelegate {
-    /**
-     * Observer to be notified when the payment response is completed.
-     */
-    public interface PaymentResponseRequesterDelegate {
-        /*
-         * Called when the payment response is ready to be sent to the merchant.
-         *
-         * @param response The payment response to send to the merchant.
-         */
-        void onPaymentResponseReady(PaymentResponse response);
-    }
-
-    private AutofillAddress mSelectedShippingAddress;
+public class ChromePaymentResponseHelper
+        implements NormalizedAddressRequestDelegate, PaymentResponseHelperInterface {
     private final AutofillContact mSelectedContact;
-    private PaymentResponse mPaymentResponse;
-    private PaymentResponseRequesterDelegate mDelegate;
-    private boolean mIsWaitingForShippingNormalization;
-    private boolean mIsWaitingForPaymentsDetails = true;
     private final PaymentApp mSelectedPaymentApp;
     private final PaymentOptions mPaymentOptions;
     private final boolean mSkipToGpay;
+    private AutofillAddress mSelectedShippingAddress;
+    private PaymentResponse mPaymentResponse;
+    private PaymentResponseResultCallback mResultCallback;
+    private boolean mIsWaitingForShippingNormalization;
+    private boolean mIsWaitingForPaymentsDetails = true;
     private PayerData mPayerDataFromPaymentApp;
 
     /**
      * Builds a helper to contruct and fill a PaymentResponse.
-     *
      * @param selectedShippingAddress The shipping address picked by the user.
      * @param selectedShippingOption  The shipping option picked by the user.
      * @param selectedContact         The contact info picked by the user.
      * @param selectedPaymentApp      The payment app picked by the user.
      * @param paymentOptions          The paymentOptions of the corresponding payment request.
      * @param skipToGpay              Whether or not Gpay bridge is activated for skip to Gpay.
-     * @param delegate                The object that will receive the completed PaymentResponse.
      */
-    public PaymentResponseHelper(EditableOption selectedShippingAddress,
+    public ChromePaymentResponseHelper(EditableOption selectedShippingAddress,
             EditableOption selectedShippingOption, EditableOption selectedContact,
-            PaymentApp selectedPaymentApp, PaymentOptions paymentOptions, boolean skipToGpay,
-            PaymentResponseRequesterDelegate delegate) {
+            PaymentApp selectedPaymentApp, PaymentOptions paymentOptions, boolean skipToGpay) {
         mPaymentResponse = new PaymentResponse();
         mPaymentResponse.payer = new PayerDetail();
 
-        mDelegate = delegate;
         mSelectedPaymentApp = selectedPaymentApp;
         mPaymentOptions = paymentOptions;
         mSkipToGpay = skipToGpay;
@@ -107,15 +93,10 @@ public class PaymentResponseHelper implements NormalizedAddressRequestDelegate {
         }
     }
 
-    /**
-     * Called after the payment details were received.
-     *
-     * @param methodName         The payment method name being used for payment.
-     * @param stringifiedDetails A string containing all the details of the payment.
-     * @param payerData          The payer data received from the payment app.
-     */
-    public void onPaymentDetailsReceived(
-            String methodName, String stringifiedDetails, PayerData payerData) {
+    @Override
+    public void generatePaymentResponse(String methodName, String stringifiedDetails,
+            PayerData payerData, PaymentResponseResultCallback resultCallback) {
+        mResultCallback = resultCallback;
         mPaymentResponse.methodName = methodName;
         mPaymentResponse.stringifiedDetails = stringifiedDetails;
         mPayerDataFromPaymentApp = payerData;
@@ -123,7 +104,7 @@ public class PaymentResponseHelper implements NormalizedAddressRequestDelegate {
         mIsWaitingForPaymentsDetails = false;
 
         // Wait for the shipping address normalization before sending the response.
-        if (!mIsWaitingForShippingNormalization) generatePaymentResponse();
+        if (!mIsWaitingForShippingNormalization) onAllDataReady();
     }
 
     @Override
@@ -139,7 +120,7 @@ public class PaymentResponseHelper implements NormalizedAddressRequestDelegate {
         }
 
         // Wait for the payment details before sending the response.
-        if (!mIsWaitingForPaymentsDetails) generatePaymentResponse();
+        if (!mIsWaitingForPaymentsDetails) onAllDataReady();
     }
 
     @Override
@@ -147,7 +128,7 @@ public class PaymentResponseHelper implements NormalizedAddressRequestDelegate {
         onAddressNormalized(profile);
     }
 
-    private void generatePaymentResponse() {
+    private void onAllDataReady() {
         assert !mIsWaitingForPaymentsDetails;
         assert !mIsWaitingForShippingNormalization;
 
@@ -197,6 +178,6 @@ public class PaymentResponseHelper implements NormalizedAddressRequestDelegate {
                     PhoneNumberUtil.formatForResponse(mPaymentResponse.payer.phone);
         }
 
-        mDelegate.onPaymentResponseReady(mPaymentResponse);
+        mResultCallback.onPaymentResponseReady(mPaymentResponse);
     }
 }

components/payments/content/android/BUILD.gn

@@ -133,6 +133,7 @@ android_library("all_java") {
     "java/src/org/chromium/components/payments/PaymentRequestService.java",
     "java/src/org/chromium/components/payments/PaymentRequestServiceUtil.java",
     "java/src/org/chromium/components/payments/PaymentRequestSpec.java",
+    "java/src/org/chromium/components/payments/PaymentResponseHelperInterface.java",
     "java/src/org/chromium/components/payments/PaymentUIsObserver.java",
     "java/src/org/chromium/components/payments/PaymentValidator.java",
     "java/src/org/chromium/components/payments/SkipToGPayHelper.java",

components/payments/content/android/java/src/org/chromium/components/payments/PaymentResponseHelperInterface.java

+// Copyright 2020 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.components.payments;
+
+import org.chromium.payments.mojom.PaymentResponse;
+
+/**
+ * The interface of a helper class that generates a {@link PaymentResponse} with the input of
+ * payment details.
+ */
+public interface PaymentResponseHelperInterface {
+    /**
+     * Generates a {@link PaymentResponse} with the given payment details.
+     * @param methodName The payment method name being used for payment.
+     * @param stringifiedDetails The payment details received from the payment app.
+     * @param payerData The payer data received from the payment app.
+     * @param resultCallback The callback that output the payment response.
+     */
+    void generatePaymentResponse(String methodName, String stringifiedDetails, PayerData payerData,
+            PaymentResponseResultCallback resultCallback);
+
+    /** The callback that output the payment response. */
+    interface PaymentResponseResultCallback {
+        /*
+         * Called when the payment response is generated.
+         * @param response The payment response to send to the merchant.
+         */
+        void onPaymentResponseReady(PaymentResponse response);
+    }
+}