Java implementation of PaymentRequest mojo service

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

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillPaymentInstrument.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillPaymentInstrument.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillPaymentInstrument.java
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+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/AutofillPaymentInstrument.java
@@ -0,0 +1,83 @@
+// 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.
+
+package org.chromium.chrome.browser.payments;
+
+import android.util.JsonWriter;
+
+import org.chromium.chrome.browser.autofill.PersonalDataManager;
+import org.chromium.chrome.browser.autofill.PersonalDataManager.CreditCard;
+import org.chromium.chrome.browser.autofill.PersonalDataManager.FullCardRequestDelegate;
+import org.chromium.content_public.browser.WebContents;
+import org.chromium.mojom.payments.PaymentItem;
+
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.List;
+
+/**
+ * The locally stored credit card payment instrument.
+ */
+public class AutofillPaymentInstrument
+        extends PaymentInstrument implements FullCardRequestDelegate {
+    private final WebContents mWebContents;
+    private final CreditCard mCard;
+    private DetailsCallback mCallback;
+
+    /**
+     * Builds a payment instrument for the given credit card.
+     *
+     * @param webContents The web contents where PaymentRequest was invoked.
+     * @param card The autofill card that can be used for payment.
+     */
+    public AutofillPaymentInstrument(WebContents webContents, CreditCard card) {
+        super(card.getGUID(), card.getObfuscatedNumber(), card.getName(),
+                card.getIssuerIconDrawableId());
+        mWebContents = webContents;
+        mCard = card;
+    }
+
+    @Override
+    public String getMethodName() {
+        return mCard.getBasicCardPaymentType();
+    }
+
+    @Override
+    public void getDetails(String unusedMerchantName, String unusedOrigin,
+            List<PaymentItem> unusedItems, JSONObject unusedDetails, DetailsCallback callback) {
+        assert mCallback == null;
+        mCallback = callback;
+        PersonalDataManager.getInstance().getFullCard(mWebContents, mCard.getGUID(), this);
+    }
+
+    @Override
+    public void onFullCardDetails(CreditCard card, String cvc) {
+        StringWriter stringWriter = new StringWriter();
+        JsonWriter json = new JsonWriter(stringWriter);
+        try {
+            json.beginObject();
+            json.name("cardholderName").value(card.getName());
+            json.name("cardNumber").value(card.getNumber());
+            json.name("expiryMonth").value(card.getMonth());
+            json.name("expiryYear").value(card.getYear());
+            json.name("cardSecurityCode").value(cvc);
+            json.endObject();
+        } catch (IOException e) {
+            mCallback.onInstrumentDetailsError();
+            return;
+        }
+
+        mCallback.onInstrumentDetailsReady(card.getBasicCardPaymentType(), stringWriter.toString());
+    }
+
+    @Override
+    public void onFullCardError() {
+        mCallback.onInstrumentDetailsError();
+    }
+
+    @Override
+    public void dismiss() {}
+}