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-rw-r--r--dom/indexedDB/IDBFileHandle.h149
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diff --git a/dom/indexedDB/IDBFileHandle.h b/dom/indexedDB/IDBFileHandle.h
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+/* -*- 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_idbfilehandle_h__
+#define mozilla_dom_idbfilehandle_h__
+
+#include "IDBFileRequest.h"
+#include "js/TypeDecls.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/FileHandleBase.h"
+#include "mozilla/DOMEventTargetHelper.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIRunnable.h"
+#include "nsWeakReference.h"
+
+class nsPIDOMWindowInner;
+
+namespace mozilla {
+namespace dom {
+
+struct IDBFileMetadataParameters;
+class IDBFileRequest;
+class IDBMutableFile;
+
+class IDBFileHandle final
+ : public DOMEventTargetHelper
+ , public nsIRunnable
+ , public FileHandleBase
+ , public nsSupportsWeakReference
+{
+ RefPtr<IDBMutableFile> mMutableFile;
+
+public:
+ static already_AddRefed<IDBFileHandle>
+ Create(IDBMutableFile* aMutableFile,
+ FileMode aMode);
+
+ // WebIDL
+ nsPIDOMWindowInner*
+ GetParentObject() const
+ {
+ AssertIsOnOwningThread();
+ return GetOwner();
+ }
+
+ IDBMutableFile*
+ GetMutableFile() const
+ {
+ AssertIsOnOwningThread();
+ return mMutableFile;
+ }
+
+ IDBMutableFile*
+ GetFileHandle() const
+ {
+ AssertIsOnOwningThread();
+ return GetMutableFile();
+ }
+
+ already_AddRefed<IDBFileRequest>
+ GetMetadata(const IDBFileMetadataParameters& aParameters, ErrorResult& aRv);
+
+ already_AddRefed<IDBFileRequest>
+ ReadAsArrayBuffer(uint64_t aSize, ErrorResult& aRv)
+ {
+ AssertIsOnOwningThread();
+ return Read(aSize, false, NullString(), aRv).downcast<IDBFileRequest>();
+ }
+
+ already_AddRefed<IDBFileRequest>
+ ReadAsText(uint64_t aSize, const nsAString& aEncoding, ErrorResult& aRv)
+ {
+ AssertIsOnOwningThread();
+ return Read(aSize, true, aEncoding, aRv).downcast<IDBFileRequest>();
+ }
+
+ already_AddRefed<IDBFileRequest>
+ Write(const StringOrArrayBufferOrArrayBufferViewOrBlob& aValue,
+ ErrorResult& aRv)
+ {
+ AssertIsOnOwningThread();
+ return WriteOrAppend(aValue, false, aRv).downcast<IDBFileRequest>();
+ }
+
+ already_AddRefed<IDBFileRequest>
+ Append(const StringOrArrayBufferOrArrayBufferViewOrBlob& aValue,
+ ErrorResult& aRv)
+ {
+ AssertIsOnOwningThread();
+ return WriteOrAppend(aValue, true, aRv).downcast<IDBFileRequest>();
+ }
+
+ already_AddRefed<IDBFileRequest>
+ Truncate(const Optional<uint64_t>& aSize, ErrorResult& aRv)
+ {
+ AssertIsOnOwningThread();
+ return FileHandleBase::Truncate(aSize, aRv).downcast<IDBFileRequest>();
+ }
+
+ already_AddRefed<IDBFileRequest>
+ Flush(ErrorResult& aRv)
+ {
+ AssertIsOnOwningThread();
+ return FileHandleBase::Flush(aRv).downcast<IDBFileRequest>();
+ }
+
+ IMPL_EVENT_HANDLER(complete)
+ IMPL_EVENT_HANDLER(abort)
+ IMPL_EVENT_HANDLER(error)
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_NSIRUNNABLE
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(IDBFileHandle, DOMEventTargetHelper)
+
+ // nsIDOMEventTarget
+ virtual nsresult
+ PreHandleEvent(EventChainPreVisitor& aVisitor) override;
+
+ // WrapperCache
+ virtual JSObject*
+ WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ // FileHandleBase
+ virtual MutableFileBase*
+ MutableFile() const override;
+
+ virtual void
+ HandleCompleteOrAbort(bool aAborted) override;
+
+private:
+ IDBFileHandle(FileMode aMode,
+ IDBMutableFile* aMutableFile);
+ ~IDBFileHandle();
+
+ // FileHandleBase
+ virtual bool
+ CheckWindow() override;
+
+ virtual already_AddRefed<FileRequestBase>
+ GenerateFileRequest() override;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_idbfilehandle_h__