dom/base/MessagePortList.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
   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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_MessagePortList_h
   8 #define mozilla_dom_MessagePortList_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "mozilla/ErrorResult.h"
  12 #include "nsCycleCollectionParticipant.h"
  13 #include "mozilla/dom/MessagePort.h"
  14 #include "nsWrapperCache.h"
  15 #include "nsAutoPtr.h"
  16 #include "nsTArray.h"
  17
  18 namespace mozilla {
  19 namespace dom {
  20
  21 class MessagePortList MOZ_FINAL : public nsISupports
  22                                 , public nsWrapperCache
  23 {
  24   ~MessagePortList() {}
  25
  26 public:
  27   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  28   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(MessagePortList)
  29
  30 public:
  31   MessagePortList(nsISupports* aOwner, nsTArray<nsRefPtr<MessagePortBase>>& aPorts)
  32     : mOwner(aOwner)
  33     , mPorts(aPorts)
  34   {
  35     SetIsDOMBinding();
  36   }
  37
  38   nsISupports*
  39   GetParentObject() const
  40   {
  41     return mOwner;
  42   }
  43
  44   virtual JSObject*
  45   WrapObject(JSContext* aCx) MOZ_OVERRIDE;
  46
  47   uint32_t
  48   Length() const
  49   {
  50     return mPorts.Length();
  51   }
  52
  53   MessagePortBase*
  54   Item(uint32_t aIndex)
  55   {
  56     return mPorts.SafeElementAt(aIndex);
  57   }
  58
  59   MessagePortBase*
  60   IndexedGetter(uint32_t aIndex, bool &aFound)
  61   {
  62     aFound = aIndex < mPorts.Length();
  63     if (!aFound) {
  64       return nullptr;
  65     }
  66     return mPorts[aIndex];
  67   }
  68
  69 public:
  70   nsCOMPtr<nsISupports> mOwner;
  71   nsTArray<nsRefPtr<MessagePortBase>> mPorts;
  72 };
  73
  74 } // namespace dom
  75 } // namespace mozilla
  76
  77 #endif // mozilla_dom_MessagePortList_h
  78