gecko-dev/dom/workers/WorkerNavigator.cpp

169 строки
4.3 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/BindingUtils.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/PromiseWorkerProxy.h"
#include "mozilla/dom/WorkerNavigator.h"
#include "mozilla/dom/WorkerNavigatorBinding.h"
#include "nsProxyRelease.h"
#include "RuntimeService.h"
#include "nsIDocument.h"
#include "WorkerPrivate.h"
#include "WorkerRunnable.h"
#include "WorkerScope.h"
#include "mozilla/dom/Navigator.h"
namespace mozilla {
namespace dom {
using namespace mozilla::dom::workers;
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(WorkerNavigator)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(WorkerNavigator, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(WorkerNavigator, Release)
/* static */ already_AddRefed<WorkerNavigator>
WorkerNavigator::Create(bool aOnLine)
{
RuntimeService* rts = RuntimeService::GetService();
MOZ_ASSERT(rts);
const RuntimeService::NavigatorProperties& properties =
rts->GetNavigatorProperties();
RefPtr<WorkerNavigator> navigator =
new WorkerNavigator(properties, aOnLine);
return navigator.forget();
}
JSObject*
WorkerNavigator::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return WorkerNavigatorBinding::Wrap(aCx, this, aGivenProto);
}
void
WorkerNavigator::SetLanguages(const nsTArray<nsString>& aLanguages)
{
WorkerNavigatorBinding::ClearCachedLanguagesValue(this);
mProperties.mLanguages = aLanguages;
}
void
WorkerNavigator::GetAppName(nsString& aAppName) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if (!mProperties.mAppNameOverridden.IsEmpty() &&
!workerPrivate->UsesSystemPrincipal()) {
aAppName = mProperties.mAppNameOverridden;
} else {
aAppName = mProperties.mAppName;
}
}
void
WorkerNavigator::GetAppVersion(nsString& aAppVersion) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if (!mProperties.mAppVersionOverridden.IsEmpty() &&
!workerPrivate->UsesSystemPrincipal()) {
aAppVersion = mProperties.mAppVersionOverridden;
} else {
aAppVersion = mProperties.mAppVersion;
}
}
void
WorkerNavigator::GetPlatform(nsString& aPlatform) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
if (!mProperties.mPlatformOverridden.IsEmpty() &&
!workerPrivate->UsesSystemPrincipal()) {
aPlatform = mProperties.mPlatformOverridden;
} else {
aPlatform = mProperties.mPlatform;
}
}
namespace {
class GetUserAgentRunnable final : public WorkerMainThreadRunnable
{
nsString& mUA;
public:
GetUserAgentRunnable(WorkerPrivate* aWorkerPrivate, nsString& aUA)
: WorkerMainThreadRunnable(aWorkerPrivate,
NS_LITERAL_CSTRING("UserAgent getter"))
, mUA(aUA)
{
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
}
virtual bool MainThreadRun() override
{
AssertIsOnMainThread();
nsCOMPtr<nsPIDOMWindowInner> window = mWorkerPrivate->GetWindow();
nsCOMPtr<nsIURI> uri;
if (window && window->GetDocShell()) {
nsIDocument* doc = window->GetExtantDoc();
if (doc) {
doc->NodePrincipal()->GetURI(getter_AddRefs(uri));
}
}
bool isCallerChrome = mWorkerPrivate->UsesSystemPrincipal();
nsresult rv = dom::Navigator::GetUserAgent(window, uri,
isCallerChrome, mUA);
if (NS_FAILED(rv)) {
NS_WARNING("Failed to retrieve user-agent from the worker thread.");
}
return true;
}
};
} // namespace
void
WorkerNavigator::GetUserAgent(nsString& aUserAgent, ErrorResult& aRv) const
{
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
MOZ_ASSERT(workerPrivate);
RefPtr<GetUserAgentRunnable> runnable =
new GetUserAgentRunnable(workerPrivate, aUserAgent);
runnable->Dispatch(aRv);
}
uint64_t
WorkerNavigator::HardwareConcurrency() const
{
RuntimeService* rts = RuntimeService::GetService();
MOZ_ASSERT(rts);
return rts->ClampedHardwareConcurrency();
}
} // namespace dom
} // namespace mozilla