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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Next MinVersion: 4
module chromeos.payments.mojom;
import "chromeos/components/payments/mojom/payment_app_types.mojom";
// The service that runs in ARC and allows the browser to invoke the TWA payment
// app that is installed in ARC, if it implements payment intents as described
// in https://web.dev/android-payment-apps-overview/.
//
// This mojom interface is used in crosapi as well to forward the payment
// request from Lacros.
//
// At first, only "https://play.google.com/billing" payment method is supported.
//
// Ash Browser:
// -------------------- --------------------------------------------------
// | Ash Browser | | ARC |
// | | | |
// | --------------- | | -------------- ------- ---------------- |
// | | Web Payment |<-|------|->| PaymentApp |<-->| TWA |<-->| Play Billing | |
// | --------------- | | -------------- ------- ---------------- |
// | | | |
// -------------------- --------------------------------------------------
// Lacros Browser:
// ---------------- ---------------- -----------------------------------------
// | Lacros | | Ash | | ARC |
// | Browser | | | | |
// |------------- | | ------------ | | ------------ ----- -------------- |
// ||Web Payment|<|-|>|PaymentApp|<|-|>|PaymentApp|<->|TWA|<->|Play Billing| |
// |------------- | | |Forwarder | | | ------------ ----- -------------- |
// | | | ------------ | | |
// ---------------- ---------------- -----------------------------------------
//
// Next method ID: 3
[Stable, Uuid="5d046348-1f14-4bfe-840b-75bc2c05ef01"]
interface PaymentAppInstance {
// Called by the browser to check whether the TWA with |package_name| (e.g.,
// "com.example.app") in ARC has intent filters for
// org.chromium.intent.action.PAY and
// org.chromium.intent.action.IS_READY_TO_PAY with
// "https://play.google.com/billing" in either
// "org.chromium.default_payment_method_name" or
// "org.chromium.payment_method_names" metadata of the PAY intent filter.
// Other payment methods are ignored for now.
//
// Should not invoke any of the TWA activities or connect to any of its
// services, because this method may be invoked when off the record, e.g.,
// incognito mode or guest mode.
IsPaymentImplemented@0(string package_name)
=> (chromeos.payments.mojom.IsPaymentImplementedResult response);
// Forwards the request to IsReadyToPayServiceHelper.query(), which queries
// the payment app. The payment app should return true if payments can be
// made. This should not be invoked when off the record, e.g., incognito mode
// or guest mode.
[MinVersion=1]
IsReadyToPay@1(chromeos.payments.mojom.PaymentParameters parameters)
=> (chromeos.payments.mojom.IsReadyToPayResult response);
// Forwards the request to WebPaymentIntentHelper.createPayIntent() and fires
// the resulting intent. This invokes the payment flow.
//
// The "String merchantName" parameter to createPayIntent() should be empty
// (but not null).
//
// The total amount for createPayIntent() should always be "0" with currency
// "ZZZ".
[MinVersion=2]
InvokePaymentApp@2(chromeos.payments.mojom.PaymentParameters parameters)
=> (chromeos.payments.mojom.InvokePaymentAppResult response);
// Requests to abort a previous payment flow (identified by |request_token|)
// which was opened with InvokePaymentApp().
//
// This may be called by the website if a payment should no longer be made
// (e.g., when an item goes out of stock), or by the browser if the payment is
// no longer available (e.g., the page was refreshed).
[MinVersion=3]
AbortPaymentApp@3(string request_token)
=> (bool aborted);
};
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