mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-01 17:23:59 +00:00
346 lines
8.8 KiB
C++
346 lines
8.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "DOMMediaStream.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/TVCurrentSourceChangedEvent.h"
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#include "mozilla/dom/TVServiceCallbacks.h"
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#include "mozilla/dom/TVServiceFactory.h"
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#include "mozilla/dom/TVSource.h"
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#include "mozilla/dom/TVUtils.h"
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#include "nsISupportsPrimitives.h"
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#include "nsITVService.h"
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#include "nsITVSimulatorService.h"
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#include "nsServiceManagerUtils.h"
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#include "TVTuner.h"
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#include "mozilla/dom/HTMLVideoElement.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(TVTuner, DOMEventTargetHelper,
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mTVService, mStream, mCurrentSource, mSources)
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NS_IMPL_ADDREF_INHERITED(TVTuner, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(TVTuner, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(TVTuner)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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TVTuner::TVTuner(nsPIDOMWindowInner* aWindow)
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: DOMEventTargetHelper(aWindow)
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, mStreamType(0)
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{
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}
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TVTuner::~TVTuner()
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{
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}
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/* static */ already_AddRefed<TVTuner>
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TVTuner::Create(nsPIDOMWindowInner* aWindow,
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nsITVTunerData* aData)
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{
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RefPtr<TVTuner> tuner = new TVTuner(aWindow);
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return (tuner->Init(aData)) ? tuner.forget() : nullptr;
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}
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bool
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TVTuner::Init(nsITVTunerData* aData)
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{
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NS_ENSURE_TRUE(aData, false);
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nsresult rv = aData->GetId(mId);
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NS_ENSURE_SUCCESS(rv, false);
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if (NS_WARN_IF(mId.IsEmpty())) {
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return false;
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}
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uint32_t count;
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char** supportedSourceTypes;
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rv = aData->GetSupportedSourceTypes(&count, &supportedSourceTypes);
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NS_ENSURE_SUCCESS(rv, false);
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for (uint32_t i = 0; i < count; i++) {
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TVSourceType sourceType = ToTVSourceType(supportedSourceTypes[i]);
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if (NS_WARN_IF(sourceType == TVSourceType::EndGuard_)) {
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continue;
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}
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// Generate the source instance based on the supported source type.
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RefPtr<TVSource> source = TVSource::Create(GetOwner(), sourceType, this);
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if (NS_WARN_IF(!source)) {
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continue;
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}
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mSupportedSourceTypes.AppendElement(sourceType);
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mSources.AppendElement(source);
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}
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NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, supportedSourceTypes);
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mTVService = TVServiceFactory::AutoCreateTVService();
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NS_ENSURE_TRUE(mTVService, false);
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rv = aData->GetStreamType(&mStreamType);
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NS_ENSURE_SUCCESS(rv, false);
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return true;
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}
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/* virtual */ JSObject*
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TVTuner::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return TVTunerBinding::Wrap(aCx, this, aGivenProto);
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}
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nsresult
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TVTuner::SetCurrentSource(TVSourceType aSourceType)
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{
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ErrorResult error;
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if (mCurrentSource) {
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if (aSourceType == mCurrentSource->Type()) {
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// No actual change.
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return NS_OK;
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}
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// No need to stay tuned for non-current sources.
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nsresult rv = mCurrentSource->UnsetCurrentChannel();
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if (NS_FAILED(rv)) {
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return rv;
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}
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}
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for (uint32_t i = 0; i < mSources.Length(); i++) {
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if (aSourceType == mSources[i]->Type()) {
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mCurrentSource = mSources[i];
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break;
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}
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}
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nsresult rv = InitMediaStream();
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if (NS_FAILED(rv)) {
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return rv;
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}
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return DispatchCurrentSourceChangedEvent(mCurrentSource);
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}
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nsresult
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TVTuner::DispatchTVEvent(nsIDOMEvent* aEvent)
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{
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return DispatchTrustedEvent(aEvent);
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}
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void
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TVTuner::GetSupportedSourceTypes(nsTArray<TVSourceType>& aSourceTypes,
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ErrorResult& aRv) const
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{
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aSourceTypes = mSupportedSourceTypes;
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}
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already_AddRefed<Promise>
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TVTuner::GetSources(ErrorResult& aRv)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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MOZ_ASSERT(global);
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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promise->MaybeResolve(mSources);
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return promise.forget();
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}
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already_AddRefed<Promise>
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TVTuner::SetCurrentSource(const TVSourceType aSourceType, ErrorResult& aRv)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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MOZ_ASSERT(global);
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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// |SetCurrentSource(const TVSourceType)| will be called once |notifySuccess|
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// of the callback is invoked.
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nsCOMPtr<nsITVServiceCallback> callback =
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new TVServiceSourceSetterCallback(this, promise, aSourceType);
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nsresult rv = mTVService->SetSource(mId, ToTVSourceTypeStr(aSourceType), callback);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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promise->MaybeReject(NS_ERROR_DOM_ABORT_ERR);
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}
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return promise.forget();
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}
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void
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TVTuner::GetId(nsAString& aId) const
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{
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aId = mId;
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}
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already_AddRefed<TVSource>
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TVTuner::GetCurrentSource() const
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{
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RefPtr<TVSource> currentSource = mCurrentSource;
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return currentSource.forget();
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}
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already_AddRefed<DOMMediaStream>
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TVTuner::GetStream() const
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{
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RefPtr<DOMMediaStream> stream = mStream;
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return stream.forget();
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}
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nsresult
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TVTuner::ReloadMediaStream()
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{
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return InitMediaStream();
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}
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nsresult
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TVTuner::InitMediaStream()
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{
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nsCOMPtr<nsPIDOMWindowInner> window = GetOwner();
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RefPtr<DOMMediaStream> stream = nullptr;
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if (mStreamType == nsITVTunerData::TV_STREAM_TYPE_HW) {
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stream = DOMHwMediaStream::CreateHwStream(window);
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} else if (mStreamType == nsITVTunerData::TV_STREAM_TYPE_SIMULATOR) {
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stream = CreateSimulatedMediaStream();
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}
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mStream = stream.forget();
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return NS_OK;
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}
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already_AddRefed<DOMMediaStream>
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TVTuner::CreateSimulatedMediaStream()
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{
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nsCOMPtr<nsPIDOMWindowInner> domWin = GetOwner();
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if (NS_WARN_IF(!domWin)) {
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return nullptr;
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}
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nsIDocument* doc = domWin->GetExtantDoc();
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if (NS_WARN_IF(!doc)) {
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return nullptr;
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}
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ErrorResult error;
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ElementCreationOptionsOrString options;
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options.SetAsString();
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RefPtr<Element> element = doc->CreateElement(VIDEO_TAG, options, error);
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if (NS_WARN_IF(error.Failed())) {
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error.SuppressException();
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return nullptr;
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}
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nsCOMPtr<nsIContent> content(do_QueryInterface(element));
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if (NS_WARN_IF(!content)) {
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return nullptr;
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}
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HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(content.get());
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if (NS_WARN_IF(!mediaElement)) {
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return nullptr;
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}
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mediaElement->SetAutoplay(true, error);
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if (NS_WARN_IF(error.Failed())) {
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error.SuppressException();
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return nullptr;
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}
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mediaElement->SetLoop(true, error);
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if (NS_WARN_IF(error.Failed())) {
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error.SuppressException();
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return nullptr;
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}
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nsCOMPtr<nsITVSimulatorService> simService(do_QueryInterface(mTVService));
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if (NS_WARN_IF(!simService)) {
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return nullptr;
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}
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if (NS_WARN_IF(!mCurrentSource)) {
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return nullptr;
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}
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RefPtr<TVChannel> currentChannel = mCurrentSource->GetCurrentChannel();
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if (NS_WARN_IF(!currentChannel)) {
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return nullptr;
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}
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nsString currentChannelNumber;
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currentChannel->GetNumber(currentChannelNumber);
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if (currentChannelNumber.IsEmpty()) {
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return nullptr;
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}
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nsString currentVideoBlobUrl;
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nsresult rv = simService->GetSimulatorVideoBlobURL(mId,
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ToTVSourceTypeStr(mCurrentSource->Type()),
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currentChannelNumber,
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domWin,
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currentVideoBlobUrl);
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if (NS_WARN_IF(NS_FAILED(rv) || currentVideoBlobUrl.IsEmpty())) {
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return nullptr;
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}
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mediaElement->SetSrc(currentVideoBlobUrl, error);
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if (NS_WARN_IF(error.Failed())) {
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error.SuppressException();
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return nullptr;
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}
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// See Media Capture from DOM Elements spec.
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// http://www.w3.org/TR/mediacapture-fromelement/
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RefPtr<DOMMediaStream> stream = mediaElement->MozCaptureStream(error);
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if (NS_WARN_IF(error.Failed())) {
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error.SuppressException();
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return nullptr;
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}
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return stream.forget();
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}
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nsresult
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TVTuner::DispatchCurrentSourceChangedEvent(TVSource* aSource)
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{
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TVCurrentSourceChangedEventInit init;
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init.mSource = aSource;
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nsCOMPtr<nsIDOMEvent> event =
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TVCurrentSourceChangedEvent::Constructor(this,
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NS_LITERAL_STRING("currentsourcechanged"),
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init);
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nsCOMPtr<nsIRunnable> runnable =
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NewRunnableMethod<nsCOMPtr<nsIDOMEvent>>(this,
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&TVTuner::DispatchTVEvent,
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event);
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return NS_DispatchToCurrentThread(runnable);
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}
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nsresult
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TVTuner::NotifyImageSizeChanged(uint32_t aWidth, uint32_t aHeight)
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{
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DOMHwMediaStream* hwMediaStream = mStream->AsDOMHwMediaStream();
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if (hwMediaStream) {
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hwMediaStream->SetImageSize(aWidth, aHeight);
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}
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return NS_OK;
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}
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} // namespace dom
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} // namespace mozilla
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