1 files changed, 149 insertions, 0 deletions
diff --git a/dom/events/CustomEvent.cpp b/dom/events/CustomEvent.cpp
new file mode 100644
index 0000000000..3b3fb3fdd2
--- /dev/null
+++ b/dom/events/CustomEvent.cpp
@@ -0,0 +1,149 @@
+/* -*- 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 "CustomEvent.h"
+#include "mozilla/dom/CustomEventBinding.h"
+
+#include "mozilla/dom/BindingUtils.h"
+#include "nsContentUtils.h"
+#include "nsIXPConnect.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+CustomEvent::CustomEvent(mozilla::dom::EventTarget* aOwner,
+                         nsPresContext* aPresContext,
+                         mozilla::WidgetEvent* aEvent)
+  : Event(aOwner, aPresContext, aEvent)
+  , mDetail(JS::NullValue())
+{
+  mozilla::HoldJSObjects(this);
+}
+
+CustomEvent::~CustomEvent()
+{
+  mozilla::DropJSObjects(this);
+}
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(CustomEvent)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CustomEvent, Event)
+  tmp->mDetail.setUndefined();
+  mozilla::DropJSObjects(this);
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CustomEvent, Event)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(CustomEvent, Event)
+  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mDetail)
+NS_IMPL_CYCLE_COLLECTION_TRACE_END
+
+NS_IMPL_ADDREF_INHERITED(CustomEvent, Event)
+NS_IMPL_RELEASE_INHERITED(CustomEvent, Event)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(CustomEvent)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMCustomEvent)
+NS_INTERFACE_MAP_END_INHERITING(Event)
+
+already_AddRefed<CustomEvent>
+CustomEvent::Constructor(const GlobalObject& aGlobal,
+                         const nsAString& aType,
+                         const CustomEventInit& aParam,
+                         ErrorResult& aRv)
+{
+  nsCOMPtr<mozilla::dom::EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
+  RefPtr<CustomEvent> e = new CustomEvent(t, nullptr, nullptr);
+  bool trusted = e->Init(t);
+  JS::Rooted<JS::Value> detail(aGlobal.Context(), aParam.mDetail);
+  e->InitCustomEvent(aGlobal.Context(), aType, aParam.mBubbles, aParam.mCancelable, detail, aRv);
+  e->SetTrusted(trusted);
+  e->SetComposed(aParam.mComposed);
+  return e.forget();
+}
+
+JSObject*
+CustomEvent::WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return mozilla::dom::CustomEventBinding::Wrap(aCx, this, aGivenProto);
+}
+
+NS_IMETHODIMP
+CustomEvent::InitCustomEvent(const nsAString& aType,
+                             bool aCanBubble,
+                             bool aCancelable,
+                             nsIVariant* aDetail)
+{
+  NS_ENSURE_TRUE(!mEvent->mFlags.mIsBeingDispatched, NS_OK);
+
+  AutoJSAPI jsapi;
+  NS_ENSURE_STATE(jsapi.Init(GetParentObject()));
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JS::Value> detail(cx);
+
+  if (!aDetail) {
+    detail = JS::NullValue();
+  } else if (NS_WARN_IF(!VariantToJsval(cx, aDetail, &detail))) {
+    JS_ClearPendingException(cx);
+    return NS_ERROR_FAILURE;
+  }
+
+  Event::InitEvent(aType, aCanBubble, aCancelable);
+  mDetail = detail;
+
+  return NS_OK;
+}
+
+void
+CustomEvent::InitCustomEvent(JSContext* aCx,
+                             const nsAString& aType,
+                             bool aCanBubble,
+                             bool aCancelable,
+                             JS::Handle<JS::Value> aDetail,
+                             ErrorResult& aRv)
+{
+  NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
+
+  Event::InitEvent(aType, aCanBubble, aCancelable);
+  mDetail = aDetail;
+}
+
+NS_IMETHODIMP
+CustomEvent::GetDetail(nsIVariant** aDetail)
+{
+  if (mDetail.isNull()) {
+    *aDetail = nullptr;
+    return NS_OK;
+  }
+
+  AutoJSAPI jsapi;
+  NS_ENSURE_STATE(jsapi.Init(GetParentObject()));
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JS::Value> detail(cx, mDetail);
+  nsIXPConnect* xpc = nsContentUtils::XPConnect();
+
+  if (NS_WARN_IF(!xpc)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  return xpc->JSToVariant(cx, detail, aDetail);
+}
+
+void
+CustomEvent::GetDetail(JSContext* aCx,
+                       JS::MutableHandle<JS::Value> aRetval)
+{
+  aRetval.set(mDetail);
+}
+
+already_AddRefed<CustomEvent>
+NS_NewDOMCustomEvent(EventTarget* aOwner,
+                     nsPresContext* aPresContext,
+                     mozilla::WidgetEvent* aEvent)
+{
+  RefPtr<CustomEvent> it =
+    new CustomEvent(aOwner, aPresContext, aEvent);
+  return it.forget();
+}