dom/archivereader/ArchiveZipFile.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_archivereader_domarchivefile_h__
   8 #define mozilla_dom_archivereader_domarchivefile_h__
   9
  10 #include "mozilla/Attributes.h"
  11 #include "nsDOMFile.h"
  12
  13 #include "ArchiveReader.h"
  14
  15 #include "ArchiveReaderCommon.h"
  16 #include "zipstruct.h"
  17
  18 BEGIN_ARCHIVEREADER_NAMESPACE
  19
  20 /**
  21  * ArchiveZipFileImpl to DOMFileImpl
  22  */
  23 class ArchiveZipFileImpl : public DOMFileImplBase
  24 {
  25 public:
  26   NS_DECL_ISUPPORTS_INHERITED
  27
  28   ArchiveZipFileImpl(const nsAString& aName,
  29                      const nsAString& aContentType,
  30                      uint64_t aLength,
  31                      ZipCentral& aCentral,
  32                      ArchiveReader* aReader)
  33   : DOMFileImplBase(aName, aContentType, aLength),
  34     mCentral(aCentral),
  35     mArchiveReader(aReader),
  36     mFilename(aName)
  37   {
  38     NS_ASSERTION(mArchiveReader, "must have a reader");
  39     MOZ_COUNT_CTOR(ArchiveZipFileImpl);
  40   }
  41
  42   ArchiveZipFileImpl(const nsAString& aName,
  43                      const nsAString& aContentType,
  44                      uint64_t aStart,
  45                      uint64_t aLength,
  46                      ZipCentral& aCentral,
  47                      ArchiveReader* aReader)
  48   : DOMFileImplBase(aContentType, aStart, aLength),
  49     mCentral(aCentral),
  50     mArchiveReader(aReader),
  51     mFilename(aName)
  52   {
  53     NS_ASSERTION(mArchiveReader, "must have a reader");
  54     MOZ_COUNT_CTOR(ArchiveZipFileImpl);
  55   }
  56
  57   // Overrides:
  58   virtual nsresult GetInternalStream(nsIInputStream**) MOZ_OVERRIDE;
  59
  60   virtual void Unlink() MOZ_OVERRIDE;
  61   virtual void Traverse(nsCycleCollectionTraversalCallback &aCb) MOZ_OVERRIDE;
  62
  63   virtual bool IsCCed() const MOZ_OVERRIDE
  64   {
  65     return true;
  66   }
  67
  68 protected:
  69   virtual ~ArchiveZipFileImpl()
  70   {
  71     MOZ_COUNT_DTOR(ArchiveZipFileImpl);
  72   }
  73
  74   virtual already_AddRefed<nsIDOMBlob> CreateSlice(uint64_t aStart,
  75                                                    uint64_t aLength,
  76                                                    const nsAString& aContentType) MOZ_OVERRIDE;
  77
  78 private: // Data
  79   ZipCentral mCentral;
  80   nsRefPtr<ArchiveReader> mArchiveReader;
  81
  82   nsString mFilename;
  83 };
  84
  85 END_ARCHIVEREADER_NAMESPACE
  86
  87 #endif // mozilla_dom_archivereader_domarchivefile_h__