1 files changed, 66 insertions, 0 deletions
diff --git a/dom/promise/PromiseNativeHandler.cpp b/dom/promise/PromiseNativeHandler.cpp
new file mode 100644
index 0000000000..3edddcb6e7
--- /dev/null
+++ b/dom/promise/PromiseNativeHandler.cpp
@@ -0,0 +1,66 @@
+/* -*- 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 "PromiseNativeHandler.h"
+#include "mozilla/dom/Promise.h"
+#include "nsISupportsImpl.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_ISUPPORTS0(DomPromiseListener)
+
+DomPromiseListener::DomPromiseListener(dom::Promise* aDOMPromise) {
+  aDOMPromise->AppendNativeHandler(this);
+}
+
+DomPromiseListener::DomPromiseListener(dom::Promise* aDOMPromise,
+                                       CallbackTypeResolved&& aResolve,
+                                       CallbackTypeRejected&& aReject)
+    : mResolve(Some(std::move(aResolve))), mReject(Some(std::move(aReject))) {
+  aDOMPromise->AppendNativeHandler(this);
+}
+
+DomPromiseListener::~DomPromiseListener() {
+  if (mReject) {
+    (*mReject)(NS_BINDING_ABORTED);
+  }
+}
+
+void DomPromiseListener::ResolvedCallback(JSContext* aCx,
+                                          JS::Handle<JS::Value> aValue) {
+  if (mResolve) {
+    (*mResolve)(aCx, aValue);
+  }
+  // Let's clear the lambdas in case we have a cycle to ourselves.
+  mResolve.reset();
+  mReject.reset();
+}
+
+void DomPromiseListener::RejectedCallback(JSContext* aCx,
+                                          JS::Handle<JS::Value> aValue) {
+  if (mReject) {
+    nsresult errorCode;
+    if (!aValue.isInt32()) {
+      errorCode = NS_ERROR_DOM_NOT_NUMBER_ERR;
+    } else {
+      errorCode = nsresult(aValue.toInt32());
+    }
+    (*mReject)(errorCode);
+  }
+  // Let's clear the lambdas in case we have a cycle to ourselves.
+  mResolve.reset();
+  mReject.reset();
+}
+
+void DomPromiseListener::SetResolvers(CallbackTypeResolved&& aResolve,
+                                      CallbackTypeRejected&& aReject) {
+  mResolve = Some(std::move(aResolve));
+  mReject = Some(std::move(aReject));
+}
+
+}  // namespace dom
+}  // namespace mozilla