1 files changed, 161 insertions, 0 deletions
diff --git a/dom/payments/PaymentRequestUpdateEvent.cpp b/dom/payments/PaymentRequestUpdateEvent.cpp
new file mode 100644
index 0000000000..12c4a8c287
--- /dev/null
+++ b/dom/payments/PaymentRequestUpdateEvent.cpp
@@ -0,0 +1,161 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/PaymentRequestUpdateEvent.h"
+#include "mozilla/dom/PaymentRequest.h"
+#include "mozilla/dom/RootedDictionary.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(PaymentRequestUpdateEvent, Event, mRequest)
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(PaymentRequestUpdateEvent, Event)
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PaymentRequestUpdateEvent)
+NS_INTERFACE_MAP_END_INHERITING(Event)
+
+NS_IMPL_ADDREF_INHERITED(PaymentRequestUpdateEvent, Event)
+NS_IMPL_RELEASE_INHERITED(PaymentRequestUpdateEvent, Event)
+
+already_AddRefed<PaymentRequestUpdateEvent>
+PaymentRequestUpdateEvent::Constructor(
+    mozilla::dom::EventTarget* aOwner, const nsAString& aType,
+    const PaymentRequestUpdateEventInit& aEventInitDict) {
+  RefPtr<PaymentRequestUpdateEvent> e = new PaymentRequestUpdateEvent(aOwner);
+  bool trusted = e->Init(aOwner);
+  e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);
+  e->SetTrusted(trusted);
+  e->SetComposed(aEventInitDict.mComposed);
+  return e.forget();
+}
+
+already_AddRefed<PaymentRequestUpdateEvent>
+PaymentRequestUpdateEvent::Constructor(
+    const GlobalObject& aGlobal, const nsAString& aType,
+    const PaymentRequestUpdateEventInit& aEventInitDict) {
+  nsCOMPtr<mozilla::dom::EventTarget> owner =
+      do_QueryInterface(aGlobal.GetAsSupports());
+  return Constructor(owner, aType, aEventInitDict);
+}
+
+PaymentRequestUpdateEvent::PaymentRequestUpdateEvent(EventTarget* aOwner)
+    : Event(aOwner, nullptr, nullptr),
+      mWaitForUpdate(false),
+      mRequest(nullptr) {
+  MOZ_ASSERT(aOwner);
+}
+
+void PaymentRequestUpdateEvent::ResolvedCallback(JSContext* aCx,
+                                                 JS::Handle<JS::Value> aValue,
+                                                 ErrorResult& aRv) {
+  MOZ_ASSERT(aCx);
+  MOZ_ASSERT(mRequest);
+  if (!mRequest->InFullyActiveDocument()) {
+    return;
+  }
+
+  if (NS_WARN_IF(!aValue.isObject()) || !mWaitForUpdate) {
+    return;
+  }
+
+  ErrorResult rv;
+  // Converting value to a PaymentDetailsUpdate dictionary
+  RootedDictionary<PaymentDetailsUpdate> details(aCx);
+  if (!details.Init(aCx, aValue)) {
+    rv.StealExceptionFromJSContext(aCx);
+    mRequest->AbortUpdate(rv);
+    return;
+  }
+
+  // Validate and canonicalize the details
+  // requestShipping must be true here. PaymentRequestUpdateEvent is only
+  // dispatched when shippingAddress/shippingOption is changed, and it also
+  // means Options.RequestShipping must be true while creating the corresponding
+  // PaymentRequest.
+  mRequest->IsValidDetailsUpdate(details, true /*aRequestShipping*/, rv);
+  if (rv.Failed()) {
+    mRequest->AbortUpdate(rv);
+    return;
+  }
+
+  // Update the PaymentRequest with the new details
+  mRequest->UpdatePayment(aCx, details, rv);
+  if (rv.Failed()) {
+    mRequest->AbortUpdate(rv);
+    return;
+  }
+
+  mWaitForUpdate = false;
+  mRequest->SetUpdating(false);
+}
+
+void PaymentRequestUpdateEvent::RejectedCallback(JSContext* aCx,
+                                                 JS::Handle<JS::Value> aValue,
+                                                 ErrorResult& aRv) {
+  MOZ_ASSERT(mRequest);
+  if (!mRequest->InFullyActiveDocument()) {
+    return;
+  }
+
+  ErrorResult rejectReason;
+  rejectReason.ThrowAbortError(
+      "Details promise for PaymentRequestUpdateEvent.updateWith() is rejected "
+      "by merchant");
+  mRequest->AbortUpdate(rejectReason);
+  mWaitForUpdate = false;
+  mRequest->SetUpdating(false);
+}
+
+void PaymentRequestUpdateEvent::UpdateWith(Promise& aPromise,
+                                           ErrorResult& aRv) {
+  if (!IsTrusted()) {
+    aRv.ThrowInvalidStateError("Called on an untrusted event");
+    return;
+  }
+
+  MOZ_ASSERT(mRequest);
+  if (!mRequest->InFullyActiveDocument()) {
+    return;
+  }
+
+  if (mWaitForUpdate || !mRequest->ReadyForUpdate()) {
+    aRv.ThrowInvalidStateError(
+        "The PaymentRequestUpdateEvent is waiting for update");
+    return;
+  }
+
+  if (!mRequest->ReadyForUpdate()) {
+    aRv.ThrowInvalidStateError(
+        "The PaymentRequest state is not eInteractive or is the PaymentRequest "
+        "is updating");
+    return;
+  }
+
+  aPromise.AppendNativeHandler(this);
+
+  StopPropagation();
+  StopImmediatePropagation();
+  mWaitForUpdate = true;
+  mRequest->SetUpdating(true);
+}
+
+void PaymentRequestUpdateEvent::SetRequest(PaymentRequest* aRequest) {
+  MOZ_ASSERT(IsTrusted());
+  MOZ_ASSERT(!mRequest);
+  MOZ_ASSERT(aRequest);
+
+  mRequest = aRequest;
+}
+
+PaymentRequestUpdateEvent::~PaymentRequestUpdateEvent() = default;
+
+JSObject* PaymentRequestUpdateEvent::WrapObjectInternal(
+    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
+  return PaymentRequestUpdateEvent_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+}  // namespace mozilla::dom