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Diffstat (limited to 'dom/archivereader/ArchiveReader.h')
-rw-r--r-- | dom/archivereader/ArchiveReader.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/dom/archivereader/ArchiveReader.h b/dom/archivereader/ArchiveReader.h new file mode 100644 index 000000000..687392e56 --- /dev/null +++ b/dom/archivereader/ArchiveReader.h @@ -0,0 +1,119 @@ +/* -*- 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_archivereader_domarchivereader_h__ +#define mozilla_dom_archivereader_domarchivereader_h__ + +#include "nsWrapperCache.h" + +#include "ArchiveReaderCommon.h" + +#include "nsCOMArray.h" +#include "nsIChannel.h" +#include "mozilla/Attributes.h" + +namespace mozilla { +namespace dom { +struct ArchiveReaderOptions; +class Blob; +class BlobImpl; +class File; +class GlobalObject; +} // namespace dom +} // namespace mozilla + +BEGIN_ARCHIVEREADER_NAMESPACE + +class ArchiveRequest; + +/** + * This is the ArchiveReader object + */ +class ArchiveReader final : public nsISupports, + public nsWrapperCache +{ +public: + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ArchiveReader) + + static already_AddRefed<ArchiveReader> + Constructor(const GlobalObject& aGlobal, Blob& aBlob, + const ArchiveReaderOptions& aOptions, ErrorResult& aError); + + ArchiveReader(Blob& aBlob, nsPIDOMWindowInner* aWindow, + const nsACString& aEncoding); + + nsPIDOMWindowInner* GetParentObject() const + { + return mWindow; + } + + virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override; + + already_AddRefed<ArchiveRequest> GetFilenames(); + already_AddRefed<ArchiveRequest> GetFile(const nsAString& filename); + already_AddRefed<ArchiveRequest> GetFiles(); + + nsresult GetInputStream(nsIInputStream** aInputStream); + nsresult GetSize(uint64_t* aSize); + +public: // for the ArchiveRequest: + nsresult RegisterRequest(ArchiveRequest* aRequest); + +public: // For events: + BlobImpl* GetBlobImpl() const + { + return mBlobImpl; + } + + void Ready(nsTArray<RefPtr<File>>& aFileList, nsresult aStatus); + +private: + ~ArchiveReader(); + + already_AddRefed<ArchiveRequest> GenerateArchiveRequest(); + + nsresult OpenArchive(); + + void RequestReady(ArchiveRequest* aRequest); + +protected: + // The archive blob/file + RefPtr<BlobImpl> mBlobImpl; + + // The window is needed by the requests + nsCOMPtr<nsPIDOMWindowInner> mWindow; + + // Are we ready to return data? + enum { + NOT_STARTED = 0, + WORKING, + READY + } mStatus; + + // State of the read: + enum { + Header, // We are collecting the header: 30bytes + Name, // The name length is contained in the header + Data, // The length of the data segment COULD be written in the header + Search // ... if the data length is unknown (== 0) we wait until we read a new header + } mReadStatus; + + // List of requests to be processed + nsTArray<RefPtr<ArchiveRequest> > mRequests; + + // Everything related to the blobs and the status: + struct { + nsTArray<RefPtr<File>> fileList; + nsresult status; + } mData; + + nsCString mEncoding; +}; + +END_ARCHIVEREADER_NAMESPACE + +#endif // mozilla_dom_archivereader_domarchivereader_h__ |