зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
2.9 KiB
C++
113 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_file_domarchivereader_h__
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#define mozilla_dom_file_domarchivereader_h__
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#include "nsWrapperCache.h"
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#include "FileCommon.h"
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#include "nsCOMArray.h"
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#include "nsIChannel.h"
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#include "nsIDOMFile.h"
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#include "mozilla/Attributes.h"
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namespace mozilla {
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namespace dom {
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class ArchiveReaderOptions;
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class GlobalObject;
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} // namespace dom
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} // namespace mozilla
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BEGIN_FILE_NAMESPACE
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class ArchiveRequest;
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/**
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* This is the ArchiveReader object
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*/
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class ArchiveReader MOZ_FINAL : public nsISupports,
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public nsWrapperCache
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ArchiveReader)
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static already_AddRefed<ArchiveReader>
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Constructor(const GlobalObject& aGlobal, nsIDOMBlob* aBlob,
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const ArchiveReaderOptions& aOptions, ErrorResult& aError);
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ArchiveReader(nsIDOMBlob* aBlob, nsPIDOMWindow* aWindow,
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const nsACString& aEncoding);
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nsIDOMWindow* GetParentObject() const
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{
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return mWindow;
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}
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virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
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already_AddRefed<ArchiveRequest> GetFilenames();
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already_AddRefed<ArchiveRequest> GetFile(const nsAString& filename);
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already_AddRefed<ArchiveRequest> GetFiles();
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nsresult GetInputStream(nsIInputStream** aInputStream);
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nsresult GetSize(uint64_t* aSize);
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public: // for the ArchiveRequest:
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nsresult RegisterRequest(ArchiveRequest* aRequest);
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public: // For events:
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void Ready(nsTArray<nsCOMPtr<nsIDOMFile> >& aFileList,
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nsresult aStatus);
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private:
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~ArchiveReader();
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already_AddRefed<ArchiveRequest> GenerateArchiveRequest();
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nsresult OpenArchive();
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void RequestReady(ArchiveRequest* aRequest);
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protected:
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// The archive blob/file
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nsCOMPtr<nsIDOMBlob> mBlob;
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// The window is needed by the requests
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nsCOMPtr<nsPIDOMWindow> mWindow;
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// Are we ready to return data?
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enum {
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NOT_STARTED = 0,
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WORKING,
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READY
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} mStatus;
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// State of the read:
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enum {
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Header, // We are collecting the header: 30bytes
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Name, // The name length is contained in the header
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Data, // The length of the data segment COULD be written in the header
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Search // ... if the data length is unknown (== 0) we wait until we read a new header
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} mReadStatus;
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// List of requests to be processed
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nsTArray<nsRefPtr<ArchiveRequest> > mRequests;
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// Everything related to the blobs and the status:
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struct {
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nsTArray<nsCOMPtr<nsIDOMFile> > fileList;
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nsresult status;
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} mData;
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nsCString mEncoding;
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};
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END_FILE_NAMESPACE
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#endif // mozilla_dom_file_domarchivereader_h__
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