tor-browser

The Tor Browser
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HTMLAudioElement.cpp (3487B)

      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 
      9 #include <algorithm>
     10 
     11 #include "AudioSampleFormat.h"
     12 #include "AudioStream.h"
     13 #include "jsfriendapi.h"
     14 #include "mozilla/dom/Document.h"
     15 #include "mozilla/dom/HTMLAudioElementBinding.h"
     16 #include "mozilla/dom/TimeRanges.h"
     17 #include "nsComponentManagerUtils.h"
     18 #include "nsContentUtils.h"
     19 #include "nsError.h"
     20 #include "nsGenericHTMLElement.h"
     21 #include "nsGkAtoms.h"
     22 #include "nsIHttpChannel.h"
     23 #include "nsJSUtils.h"
     24 
     25 nsGenericHTMLElement* NS_NewHTMLAudioElement(
     26    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
     27    mozilla::dom::FromParser aFromParser) {
     28  RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
     29  auto* nim = nodeInfo->NodeInfoManager();
     30  mozilla::dom::HTMLAudioElement* element =
     31      new (nim) mozilla::dom::HTMLAudioElement(nodeInfo.forget());
     32  element->Init();
     33  return element;
     34 }
     35 
     36 namespace mozilla::dom {
     37 
     38 nsresult HTMLAudioElement::Clone(mozilla::dom::NodeInfo* aNodeInfo,
     39                                 nsINode** aResult) const {
     40  *aResult = nullptr;
     41  RefPtr<mozilla::dom::NodeInfo> ni(aNodeInfo);
     42  auto* nim = ni->NodeInfoManager();
     43  HTMLAudioElement* it = new (nim) HTMLAudioElement(ni.forget());
     44  it->Init();
     45  nsCOMPtr<nsINode> kungFuDeathGrip = it;
     46  nsresult rv = const_cast<HTMLAudioElement*>(this)->CopyInnerTo(it);
     47  if (NS_SUCCEEDED(rv)) {
     48    kungFuDeathGrip.swap(*aResult);
     49  }
     50  return rv;
     51 }
     52 
     53 HTMLAudioElement::HTMLAudioElement(already_AddRefed<NodeInfo>&& aNodeInfo)
     54    : HTMLMediaElement(std::move(aNodeInfo)) {
     55  DecoderDoctorLogger::LogConstruction(this);
     56 }
     57 
     58 HTMLAudioElement::~HTMLAudioElement() {
     59  DecoderDoctorLogger::LogDestruction(this);
     60 }
     61 
     62 bool HTMLAudioElement::IsInteractiveHTMLContent() const {
     63  return HasAttr(nsGkAtoms::controls) ||
     64         HTMLMediaElement::IsInteractiveHTMLContent();
     65 }
     66 
     67 already_AddRefed<HTMLAudioElement> HTMLAudioElement::Audio(
     68    const GlobalObject& aGlobal, const Optional<nsAString>& aSrc,
     69    ErrorResult& aRv) {
     70  nsCOMPtr<nsPIDOMWindowInner> win = do_QueryInterface(aGlobal.GetAsSupports());
     71  Document* doc;
     72  if (!win || !(doc = win->GetExtantDoc())) {
     73    aRv.Throw(NS_ERROR_FAILURE);
     74    return nullptr;
     75  }
     76 
     77  RefPtr<mozilla::dom::NodeInfo> nodeInfo = doc->NodeInfoManager()->GetNodeInfo(
     78      nsGkAtoms::audio, nullptr, kNameSpaceID_XHTML, ELEMENT_NODE);
     79 
     80  RefPtr<HTMLAudioElement> audio =
     81      static_cast<HTMLAudioElement*>(NS_NewHTMLAudioElement(nodeInfo.forget()));
     82  audio->SetHTMLAttr(nsGkAtoms::preload, u"auto"_ns, aRv);
     83  if (aRv.Failed()) {
     84    return nullptr;
     85  }
     86 
     87  if (aSrc.WasPassed()) {
     88    audio->SetSrc(aSrc.Value(), aRv);
     89  }
     90 
     91  return audio.forget();
     92 }
     93 
     94 nsresult HTMLAudioElement::SetAcceptHeader(nsIHttpChannel* aChannel) {
     95  nsAutoCString value(
     96      "audio/webm,"
     97      "audio/ogg,"
     98      "audio/wav,"
     99      "audio/*;q=0.9,"
    100      "application/ogg;q=0.7,"
    101      "video/*;q=0.6,*/*;q=0.5");
    102 
    103  return aChannel->SetRequestHeader("Accept"_ns, value, false);
    104 }
    105 
    106 JSObject* HTMLAudioElement::WrapNode(JSContext* aCx,
    107                                     JS::Handle<JSObject*> aGivenProto) {
    108  return HTMLAudioElement_Binding::Wrap(aCx, this, aGivenProto);
    109 }
    110 
    111 }  // namespace mozilla::dom