1 files changed, 142 insertions, 0 deletions
diff --git a/dom/quota/QuotaRequests.h b/dom/quota/QuotaRequests.h
new file mode 100644
index 000000000..cb483753b
--- /dev/null
+++ b/dom/quota/QuotaRequests.h
@@ -0,0 +1,142 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_quota_UsageRequest_h
+#define mozilla_dom_quota_UsageRequest_h
+
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIQuotaRequests.h"
+
+class nsIPrincipal;
+class nsIQuotaCallback;
+class nsIQuotaUsageCallback;
+struct PRThread;
+
+namespace mozilla {
+namespace dom {
+namespace quota {
+
+class QuotaUsageRequestChild;
+
+class RequestBase
+  : public nsIQuotaRequestBase
+{
+protected:
+#ifdef DEBUG
+  PRThread* mOwningThread;
+#endif
+
+  nsCOMPtr<nsIPrincipal> mPrincipal;
+
+  nsresult mResultCode;
+  bool mHaveResultOrErrorCode;
+
+public:
+  void
+  AssertIsOnOwningThread() const
+#ifdef DEBUG
+  ;
+#else
+  { }
+#endif
+
+  void
+  SetError(nsresult aRv);
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_NSIQUOTAREQUESTBASE
+  NS_DECL_CYCLE_COLLECTION_CLASS(RequestBase)
+
+protected:
+  RequestBase();
+
+  RequestBase(nsIPrincipal* aPrincipal);
+
+  virtual ~RequestBase()
+  {
+    AssertIsOnOwningThread();
+  }
+
+  virtual void
+  FireCallback() = 0;
+};
+
+class UsageRequest final
+  : public RequestBase
+  , public nsIQuotaUsageRequest
+{
+  nsCOMPtr<nsIQuotaUsageCallback> mCallback;
+
+  nsCOMPtr<nsIVariant> mResult;
+
+  QuotaUsageRequestChild* mBackgroundActor;
+
+  bool mCanceled;
+
+public:
+  explicit UsageRequest(nsIQuotaUsageCallback* aCallback);
+
+  UsageRequest(nsIPrincipal* aPrincipal,
+               nsIQuotaUsageCallback* aCallback);
+
+  void
+  SetBackgroundActor(QuotaUsageRequestChild* aBackgroundActor);
+
+  void
+  ClearBackgroundActor()
+  {
+    AssertIsOnOwningThread();
+
+    mBackgroundActor = nullptr;
+  }
+
+  void
+  SetResult(nsIVariant* aResult);
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_FORWARD_NSIQUOTAREQUESTBASE(RequestBase::)
+  NS_DECL_NSIQUOTAUSAGEREQUEST
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(UsageRequest, RequestBase)
+
+private:
+  ~UsageRequest();
+
+  virtual void
+  FireCallback() override;
+};
+
+class Request final
+  : public RequestBase
+  , public nsIQuotaRequest
+{
+  nsCOMPtr<nsIQuotaCallback> mCallback;
+
+public:
+  Request();
+
+  explicit Request(nsIPrincipal* aPrincipal);
+
+  void
+  SetResult();
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_FORWARD_NSIQUOTAREQUESTBASE(RequestBase::)
+  NS_DECL_NSIQUOTAREQUEST
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(Request, RequestBase)
+
+private:
+  ~Request();
+
+  virtual void
+  FireCallback() override;
+};
+
+} // namespace quota
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_quota_UsageRequest_h