1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/file/ArchiveReader.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,112 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_file_domarchivereader_h__
1.11 +#define mozilla_dom_file_domarchivereader_h__
1.12 +
1.13 +#include "nsWrapperCache.h"
1.14 +
1.15 +#include "FileCommon.h"
1.16 +
1.17 +#include "nsCOMArray.h"
1.18 +#include "nsIChannel.h"
1.19 +#include "nsIDOMFile.h"
1.20 +#include "mozilla/Attributes.h"
1.21 +
1.22 +namespace mozilla {
1.23 +namespace dom {
1.24 +class ArchiveReaderOptions;
1.25 +class GlobalObject;
1.26 +} // namespace dom
1.27 +} // namespace mozilla
1.28 +
1.29 +BEGIN_FILE_NAMESPACE
1.30 +
1.31 +class ArchiveRequest;
1.32 +
1.33 +/**
1.34 + * This is the ArchiveReader object
1.35 + */
1.36 +class ArchiveReader MOZ_FINAL : public nsISupports,
1.37 + public nsWrapperCache
1.38 +{
1.39 +public:
1.40 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.41 + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ArchiveReader)
1.42 +
1.43 + static already_AddRefed<ArchiveReader>
1.44 + Constructor(const GlobalObject& aGlobal, nsIDOMBlob* aBlob,
1.45 + const ArchiveReaderOptions& aOptions, ErrorResult& aError);
1.46 +
1.47 + ArchiveReader(nsIDOMBlob* aBlob, nsPIDOMWindow* aWindow,
1.48 + const nsACString& aEncoding);
1.49 +
1.50 + nsIDOMWindow* GetParentObject() const
1.51 + {
1.52 + return mWindow;
1.53 + }
1.54 + virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
1.55 +
1.56 + already_AddRefed<ArchiveRequest> GetFilenames();
1.57 + already_AddRefed<ArchiveRequest> GetFile(const nsAString& filename);
1.58 + already_AddRefed<ArchiveRequest> GetFiles();
1.59 +
1.60 + nsresult GetInputStream(nsIInputStream** aInputStream);
1.61 + nsresult GetSize(uint64_t* aSize);
1.62 +
1.63 +public: // for the ArchiveRequest:
1.64 + nsresult RegisterRequest(ArchiveRequest* aRequest);
1.65 +
1.66 +public: // For events:
1.67 + void Ready(nsTArray<nsCOMPtr<nsIDOMFile> >& aFileList,
1.68 + nsresult aStatus);
1.69 +
1.70 +private:
1.71 + ~ArchiveReader();
1.72 +
1.73 + already_AddRefed<ArchiveRequest> GenerateArchiveRequest();
1.74 +
1.75 + nsresult OpenArchive();
1.76 +
1.77 + void RequestReady(ArchiveRequest* aRequest);
1.78 +
1.79 +protected:
1.80 + // The archive blob/file
1.81 + nsCOMPtr<nsIDOMBlob> mBlob;
1.82 +
1.83 + // The window is needed by the requests
1.84 + nsCOMPtr<nsPIDOMWindow> mWindow;
1.85 +
1.86 + // Are we ready to return data?
1.87 + enum {
1.88 + NOT_STARTED = 0,
1.89 + WORKING,
1.90 + READY
1.91 + } mStatus;
1.92 +
1.93 + // State of the read:
1.94 + enum {
1.95 + Header, // We are collecting the header: 30bytes
1.96 + Name, // The name length is contained in the header
1.97 + Data, // The length of the data segment COULD be written in the header
1.98 + Search // ... if the data length is unknown (== 0) we wait until we read a new header
1.99 + } mReadStatus;
1.100 +
1.101 + // List of requests to be processed
1.102 + nsTArray<nsRefPtr<ArchiveRequest> > mRequests;
1.103 +
1.104 + // Everything related to the blobs and the status:
1.105 + struct {
1.106 + nsTArray<nsCOMPtr<nsIDOMFile> > fileList;
1.107 + nsresult status;
1.108 + } mData;
1.109 +
1.110 + nsCString mEncoding;
1.111 +};
1.112 +
1.113 +END_FILE_NAMESPACE
1.114 +
1.115 +#endif // mozilla_dom_file_domarchivereader_h__
