import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/filehandle/FileRequestBase.h

@@ -0,0 +1,93 @@
+/* -*- 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_FileRequest_h
+#define mozilla_dom_FileRequest_h
+
+#include "FileHandleCommon.h"
+#include "js/TypeDecls.h"
+#include "nsString.h"
+
+struct PRThread;
+
+namespace mozilla {
+namespace dom {
+
+class FileHandleBase;
+
+/**
+ * This class provides a base for FileRequest implementations.
+ */
+class FileRequestBase
+  : public RefCountedThreadObject
+{
+  nsString mEncoding;
+
+  bool mHasEncoding;
+
+public:
+  class ResultCallback;
+
+  void
+  SetEncoding(const nsAString& aEncoding)
+  {
+    mEncoding = aEncoding;
+    mHasEncoding = true;
+  }
+
+  const nsAString&
+  GetEncoding() const
+  {
+    return mEncoding;
+  }
+
+  bool
+  HasEncoding() const
+  {
+    return mHasEncoding;
+  }
+
+  virtual FileHandleBase*
+  FileHandle() const = 0;
+
+  virtual void
+  OnProgress(uint64_t aProgress, uint64_t aProgressMax) = 0;
+
+  virtual void
+  SetResultCallback(ResultCallback* aCallback) = 0;
+
+  virtual void
+  SetError(nsresult aError) = 0;
+
+protected:
+  FileRequestBase(DEBUGONLY(PRThread* aOwningThread))
+    : RefCountedThreadObject(DEBUGONLY(aOwningThread))
+    , mHasEncoding(false)
+  {
+    AssertIsOnOwningThread();
+  }
+
+  virtual ~FileRequestBase()
+  {
+    AssertIsOnOwningThread();
+  }
+};
+
+class NS_NO_VTABLE FileRequestBase::ResultCallback
+{
+public:
+  virtual nsresult
+  GetResult(JSContext* aCx, JS::MutableHandle<JS::Value> aResult) = 0;
+
+protected:
+  ResultCallback()
+  { }
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_FileRequest_h