gecko-dev/dom/html/PlayPromise.cpp

127 строки
3.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/PlayPromise.h"
#include "mozilla/Logging.h"
#include "mozilla/Telemetry.h"
extern mozilla::LazyLogModule gMediaElementLog;
#define PLAY_PROMISE_LOG(msg, ...) \
MOZ_LOG(gMediaElementLog, LogLevel::Debug, (msg, ##__VA_ARGS__))
namespace mozilla {
namespace dom {
PlayPromise::PlayPromise(nsIGlobalObject* aGlobal)
: Promise(aGlobal)
{
}
PlayPromise::~PlayPromise()
{
if (!mFulfilled && PromiseObj()) {
MaybeReject(NS_ERROR_DOM_ABORT_ERR);
}
}
/* static */
already_AddRefed<PlayPromise>
PlayPromise::Create(nsIGlobalObject* aGlobal, ErrorResult& aRv)
{
RefPtr<PlayPromise> promise = new PlayPromise(aGlobal);
promise->CreateWrapper(nullptr, aRv);
return aRv.Failed() ? nullptr : promise.forget();
}
void
PlayPromise::MaybeResolveWithUndefined()
{
if (mFulfilled) {
return;
}
mFulfilled = true;
PLAY_PROMISE_LOG("PlayPromise %p resolved with undefined", this);
auto reason = Telemetry::LABELS_MEDIA_PLAY_PROMISE_RESOLUTION::Resolved;
Telemetry::AccumulateCategorical(reason);
Promise::MaybeResolveWithUndefined();
}
using PlayLabel = Telemetry::LABELS_MEDIA_PLAY_PROMISE_RESOLUTION;
struct PlayPromiseTelemetryResult
{
nsresult mValue;
PlayLabel mLabel;
const char* mName;
};
static const PlayPromiseTelemetryResult sPlayPromiseTelemetryResults[] = {
{
NS_ERROR_DOM_MEDIA_NOT_ALLOWED_ERR,
PlayLabel::NotAllowedErr,
"NotAllowedErr",
},
{
NS_ERROR_DOM_MEDIA_NOT_SUPPORTED_ERR,
PlayLabel::SrcNotSupportedErr,
"SrcNotSupportedErr",
},
{
NS_ERROR_DOM_MEDIA_ABORT_ERR,
PlayLabel::PauseAbortErr,
"PauseAbortErr",
},
{
NS_ERROR_DOM_ABORT_ERR,
PlayLabel::AbortErr,
"AbortErr",
},
};
static const PlayPromiseTelemetryResult*
FindPlayPromiseTelemetryResult(nsresult aReason)
{
for (const auto& p : sPlayPromiseTelemetryResults) {
if (p.mValue == aReason) {
return &p;
}
}
return nullptr;
}
static PlayLabel
ToPlayResultLabel(nsresult aReason)
{
auto p = FindPlayPromiseTelemetryResult(aReason);
return p ? p->mLabel : PlayLabel::UnknownErr;
}
static const char*
ToPlayResultStr(nsresult aReason)
{
auto p = FindPlayPromiseTelemetryResult(aReason);
return p ? p->mName : "UnknownErr";
}
void
PlayPromise::MaybeReject(nsresult aReason)
{
if (mFulfilled) {
return;
}
mFulfilled = true;
PLAY_PROMISE_LOG("PlayPromise %p rejected with 0x%x (%s)",
this,
static_cast<uint32_t>(aReason),
ToPlayResultStr(aReason));
Telemetry::AccumulateCategorical(ToPlayResultLabel(aReason));
Promise::MaybeReject(aReason);
}
} // namespace dom
} // namespace mozilla