dom/media/webspeech/recognition/SpeechRecognitionResultList.cpp

   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 #include "SpeechRecognitionResultList.h"
   8
   9 #include "mozilla/dom/SpeechRecognitionResultListBinding.h"
  10
  11 #include "SpeechRecognition.h"
  12
  13 namespace mozilla::dom {
  14
  15 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(SpeechRecognitionResultList, mParent,
  16                                       mItems)
  17 NS_IMPL_CYCLE_COLLECTING_ADDREF(SpeechRecognitionResultList)
  18 NS_IMPL_CYCLE_COLLECTING_RELEASE(SpeechRecognitionResultList)
  19 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(SpeechRecognitionResultList)
  20   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  21   NS_INTERFACE_MAP_ENTRY(nsISupports)
  22 NS_INTERFACE_MAP_END
  23
  24 SpeechRecognitionResultList::SpeechRecognitionResultList(
  25     SpeechRecognition* aParent)
  26     : mParent(aParent) {}
  27
  28 SpeechRecognitionResultList::~SpeechRecognitionResultList() = default;
  29
  30 nsISupports* SpeechRecognitionResultList::GetParentObject() const {
  31   return static_cast<EventTarget*>(mParent.get());
  32 }
  33
  34 JSObject* SpeechRecognitionResultList::WrapObject(
  35     JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
  36   return SpeechRecognitionResultList_Binding::Wrap(aCx, this, aGivenProto);
  37 }
  38
  39 already_AddRefed<SpeechRecognitionResult>
  40 SpeechRecognitionResultList::IndexedGetter(uint32_t aIndex, bool& aPresent) {
  41   if (aIndex >= Length()) {
  42     aPresent = false;
  43     return nullptr;
  44   }
  45
  46   aPresent = true;
  47   return Item(aIndex);
  48 }
  49
  50 uint32_t SpeechRecognitionResultList::Length() const { return mItems.Length(); }
  51
  52 already_AddRefed<SpeechRecognitionResult> SpeechRecognitionResultList::Item(
  53     uint32_t aIndex) {
  54   RefPtr<SpeechRecognitionResult> result = mItems.ElementAt(aIndex);
  55   return result.forget();
  56 }
  57
  58 }  // namespace mozilla::dom