dom/html/HTMLAudioElement.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/HTMLAudioElement.h"
   8 #include "mozilla/dom/HTMLAudioElementBinding.h"
   9 #include "nsError.h"
  10 #include "nsGenericHTMLElement.h"
  11 #include "nsGkAtoms.h"
  12 #include "mozilla/dom/Document.h"
  13 #include "jsfriendapi.h"
  14 #include "nsContentUtils.h"
  15 #include "nsJSUtils.h"
  16 #include "AudioSampleFormat.h"
  17 #include <algorithm>
  18 #include "nsComponentManagerUtils.h"
  19 #include "nsIHttpChannel.h"
  20 #include "mozilla/dom/TimeRanges.h"
  21 #include "AudioStream.h"
  22
  23 nsGenericHTMLElement* NS_NewHTMLAudioElement(
  24     already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
  25     mozilla::dom::FromParser aFromParser) {
  26   RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
  27   auto* nim = nodeInfo->NodeInfoManager();
  28   mozilla::dom::HTMLAudioElement* element =
  29       new (nim) mozilla::dom::HTMLAudioElement(nodeInfo.forget());
  30   element->Init();
  31   return element;
  32 }
  33
  34 namespace mozilla::dom {
  35
  36 nsresult HTMLAudioElement::Clone(mozilla::dom::NodeInfo* aNodeInfo,
  37                                  nsINode** aResult) const {
  38   *aResult = nullptr;
  39   RefPtr<mozilla::dom::NodeInfo> ni(aNodeInfo);
  40   auto* nim = ni->NodeInfoManager();
  41   HTMLAudioElement* it = new (nim) HTMLAudioElement(ni.forget());
  42   it->Init();
  43   nsCOMPtr<nsINode> kungFuDeathGrip = it;
  44   nsresult rv = const_cast<HTMLAudioElement*>(this)->CopyInnerTo(it);
  45   if (NS_SUCCEEDED(rv)) {
  46     kungFuDeathGrip.swap(*aResult);
  47   }
  48   return rv;
  49 }
  50
  51 HTMLAudioElement::HTMLAudioElement(already_AddRefed<NodeInfo>&& aNodeInfo)
  52     : HTMLMediaElement(std::move(aNodeInfo)) {
  53   DecoderDoctorLogger::LogConstruction(this);
  54 }
  55
  56 HTMLAudioElement::~HTMLAudioElement() {
  57   DecoderDoctorLogger::LogDestruction(this);
  58 }
  59
  60 bool HTMLAudioElement::IsInteractiveHTMLContent() const {
  61   return HasAttr(nsGkAtoms::controls) ||
  62          HTMLMediaElement::IsInteractiveHTMLContent();
  63 }
  64
  65 already_AddRefed<HTMLAudioElement> HTMLAudioElement::Audio(
  66     const GlobalObject& aGlobal, const Optional<nsAString>& aSrc,
  67     ErrorResult& aRv) {
  68   nsCOMPtr<nsPIDOMWindowInner> win = do_QueryInterface(aGlobal.GetAsSupports());
  69   Document* doc;
  70   if (!win || !(doc = win->GetExtantDoc())) {
  71     aRv.Throw(NS_ERROR_FAILURE);
  72     return nullptr;
  73   }
  74
  75   RefPtr<mozilla::dom::NodeInfo> nodeInfo = doc->NodeInfoManager()->GetNodeInfo(
  76       nsGkAtoms::audio, nullptr, kNameSpaceID_XHTML, ELEMENT_NODE);
  77
  78   RefPtr<HTMLAudioElement> audio =
  79       static_cast<HTMLAudioElement*>(NS_NewHTMLAudioElement(nodeInfo.forget()));
  80   audio->SetHTMLAttr(nsGkAtoms::preload, u"auto"_ns, aRv);
  81   if (aRv.Failed()) {
  82     return nullptr;
  83   }
  84
  85   if (aSrc.WasPassed()) {
  86     audio->SetSrc(aSrc.Value(), aRv);
  87   }
  88
  89   return audio.forget();
  90 }
  91
  92 nsresult HTMLAudioElement::SetAcceptHeader(nsIHttpChannel* aChannel) {
  93   nsAutoCString value(
  94       "audio/webm,"
  95       "audio/ogg,"
  96       "audio/wav,"
  97       "audio/*;q=0.9,"
  98       "application/ogg;q=0.7,"
  99       "video/*;q=0.6,*/*;q=0.5");
 100
 101   return aChannel->SetRequestHeader("Accept"_ns, value, false);
 102 }
 103
 104 JSObject* HTMLAudioElement::WrapNode(JSContext* aCx,
 105                                      JS::Handle<JSObject*> aGivenProto) {
 106   return HTMLAudioElement_Binding::Wrap(aCx, this, aGivenProto);
 107 }
 108
 109 }  // namespace mozilla::dom