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   }
  36
  37   nsISupports*
  38   GetParentObject() const
  39   {
  40     return mOwner;
  41   }
  42
  43   virtual JSObject*
  44   WrapObject(JSContext* aCx) MOZ_OVERRIDE;
  45
  46   uint32_t
  47   Length() const
  48   {
  49     return mPorts.Length();
  50   }
  51
  52   MessagePortBase*
  53   Item(uint32_t aIndex)
  54   {
  55     return mPorts.SafeElementAt(aIndex);
  56   }
  57
  58   MessagePortBase*
  59   IndexedGetter(uint32_t aIndex, bool &aFound)
  60   {
  61     aFound = aIndex < mPorts.Length();
  62     if (!aFound) {
  63       return nullptr;
  64     }
  65     return mPorts[aIndex];
  66   }
  67
  68 public:
  69   nsCOMPtr<nsISupports> mOwner;
  70   nsTArray<nsRefPtr<MessagePortBase>> mPorts;
  71 };
  72
  73 } // namespace dom
  74 } // namespace mozilla
  75
  76 #endif // mozilla_dom_MessagePortList_h
  77