widget/nsSoundProxy.cpp
author alwu <alwu@mozilla.com>
Fri, 11 Jan 2019 20:43:01 +0000
changeset 513517 c34e287f2f7ca98ad1945804c2a20f61249b36af
parent 508163 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1513733 - part2 : try to start AudioContext when media element which is as a source for web audio starts r=cpearce,karlt If media element is used as a source for AudioContext, we would try to start AudioContext which was not allowed to start when media element starts playing. Differential Revision: https://phabricator.services.mozilla.com/D14593

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/dom/ContentChild.h"
#include "mozilla/ipc/URIUtils.h"
#include "nsIURL.h"
#include "nsIURI.h"
#include "nsSoundProxy.h"

using namespace mozilla;
using namespace mozilla::dom;

NS_IMPL_ISUPPORTS(nsSoundProxy, nsISound)

NS_IMETHODIMP
nsSoundProxy::Play(nsIURL *aURL) {
  MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Content);

  nsCOMPtr<nsIURI> soundURI(aURL);
  bool isChrome = false;
  // Only allow playing a chrome:// URL from the content process.
  if (!soundURI || NS_FAILED(soundURI->SchemeIs("chrome", &isChrome)) ||
      !isChrome) {
    return NS_ERROR_FAILURE;
  }

  mozilla::ipc::URIParams soundParams;
  mozilla::ipc::SerializeURI(soundURI, soundParams);
  ContentChild::GetSingleton()->SendPlaySound(soundParams);
  return NS_OK;
}

NS_IMETHODIMP
nsSoundProxy::Beep() {
  MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Content);

  ContentChild::GetSingleton()->SendBeep();
  return NS_OK;
}

NS_IMETHODIMP
nsSoundProxy::Init() {
  MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Content);
  MOZ_DIAGNOSTIC_ASSERT(false, "Only called by XUL in the parent process.");
  return NS_ERROR_NOT_IMPLEMENTED;
}

NS_IMETHODIMP
nsSoundProxy::PlayEventSound(uint32_t aEventId) {
  MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Content);

  ContentChild::GetSingleton()->SendPlayEventSound(aEventId);
  return NS_OK;
}