dom/base/MultipartFileImpl.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_MultipartFileImpl_h
   7 #define mozilla_dom_MultipartFileImpl_h
   8
   9 #include "mozilla/Attributes.h"
  10 #include "mozilla/CheckedInt.h"
  11 #include "mozilla/ErrorResult.h"
  12 #include "mozilla/dom/File.h"
  13 #include "mozilla/dom/BlobBinding.h"
  14 #include "mozilla/dom/FileBinding.h"
  15 #include <algorithm>
  16
  17 using namespace mozilla;
  18 using namespace mozilla::dom;
  19
  20 class MultipartFileImpl MOZ_FINAL : public FileImplBase
  21 {
  22 public:
  23   NS_DECL_ISUPPORTS_INHERITED
  24
  25   // Create as a file
  26   MultipartFileImpl(const nsTArray<nsRefPtr<FileImpl>>& aBlobImpls,
  27                     const nsAString& aName,
  28                     const nsAString& aContentType)
  29     : FileImplBase(aName, aContentType, UINT64_MAX),
  30       mBlobImpls(aBlobImpls),
  31       mIsFromNsIFile(false)
  32   {
  33     SetLengthAndModifiedDate();
  34   }
  35
  36   // Create as a blob
  37   MultipartFileImpl(const nsTArray<nsRefPtr<FileImpl>>& aBlobImpls,
  38                     const nsAString& aContentType)
  39     : FileImplBase(aContentType, UINT64_MAX),
  40       mBlobImpls(aBlobImpls),
  41       mIsFromNsIFile(false)
  42   {
  43     SetLengthAndModifiedDate();
  44   }
  45
  46   // Create as a file to be later initialized
  47   explicit MultipartFileImpl(const nsAString& aName)
  48     : FileImplBase(aName, EmptyString(), UINT64_MAX),
  49       mIsFromNsIFile(false)
  50   {
  51   }
  52
  53   // Create as a blob to be later initialized
  54   MultipartFileImpl()
  55     : FileImplBase(EmptyString(), UINT64_MAX),
  56       mIsFromNsIFile(false)
  57   {
  58   }
  59
  60   void InitializeBlob();
  61
  62   void InitializeBlob(
  63        JSContext* aCx,
  64        const Sequence<OwningArrayBufferOrArrayBufferViewOrBlobOrString>& aData,
  65        const nsAString& aContentType,
  66        bool aNativeEOL,
  67        ErrorResult& aRv);
  68
  69   void InitializeChromeFile(File& aData,
  70                             const ChromeFilePropertyBag& aBag,
  71                             ErrorResult& aRv);
  72
  73   void InitializeChromeFile(nsPIDOMWindow* aWindow,
  74                             const nsAString& aData,
  75                             const ChromeFilePropertyBag& aBag,
  76                             ErrorResult& aRv);
  77
  78   void InitializeChromeFile(nsPIDOMWindow* aWindow,
  79                             nsIFile* aData,
  80                             const ChromeFilePropertyBag& aBag,
  81                             bool aIsFromNsIFile,
  82                             ErrorResult& aRv);
  83
  84   virtual already_AddRefed<FileImpl>
  85   CreateSlice(uint64_t aStart, uint64_t aLength,
  86               const nsAString& aContentType,
  87               ErrorResult& aRv) MOZ_OVERRIDE;
  88
  89   virtual uint64_t GetSize(ErrorResult& aRv) MOZ_OVERRIDE
  90   {
  91     return mLength;
  92   }
  93
  94   virtual nsresult GetInternalStream(nsIInputStream** aInputStream) MOZ_OVERRIDE;
  95
  96   virtual const nsTArray<nsRefPtr<FileImpl>>* GetSubBlobImpls() const MOZ_OVERRIDE
  97   {
  98     return &mBlobImpls;
  99   }
 100
 101   virtual void GetMozFullPathInternal(nsAString& aFullPath,
 102                                       ErrorResult& aRv) MOZ_OVERRIDE;
 103
 104   virtual nsresult
 105   SetMutable(bool aMutable) MOZ_OVERRIDE;
 106
 107   void SetName(const nsAString& aName)
 108   {
 109     mName = aName;
 110   }
 111
 112   void SetFromNsIFile(bool aValue)
 113   {
 114     mIsFromNsIFile = aValue;
 115   }
 116
 117   virtual bool MayBeClonedToOtherThreads() const MOZ_OVERRIDE;
 118
 119 protected:
 120   virtual ~MultipartFileImpl() {}
 121
 122   void SetLengthAndModifiedDate();
 123
 124   nsTArray<nsRefPtr<FileImpl>> mBlobImpls;
 125   bool mIsFromNsIFile;
 126 };
 127
 128 #endif // mozilla_dom_MultipartFileImpl_h