mirror of
https://github.com/mozilla/gecko-dev.git
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114 lines
3.3 KiB
C++
114 lines
3.3 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 "MLSFallback.h"
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#include "GeolocationPosition.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIGeolocationProvider.h"
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#include "nsServiceManagerUtils.h"
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#include "mozilla/Logging.h"
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#include "mozilla/glean/DomGeolocationMetrics.h"
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extern mozilla::LazyLogModule gGeolocationLog;
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NS_IMPL_ISUPPORTS(MLSFallback, nsITimerCallback, nsINamed)
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MLSFallback::MLSFallback(uint32_t delay) : mDelayMs(delay) {}
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MLSFallback::~MLSFallback() = default;
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mozilla::glean::geolocation::FallbackLabel MapReasonToLabel(
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MLSFallback::FallbackReason aReason) {
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switch (aReason) {
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case MLSFallback::FallbackReason::Error:
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return mozilla::glean::geolocation::FallbackLabel::eOnError;
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case MLSFallback::FallbackReason::Timeout:
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return mozilla::glean::geolocation::FallbackLabel::eOnTimeout;
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default:
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MOZ_CRASH("Unexpected fallback reason");
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return mozilla::glean::geolocation::FallbackLabel::eOnError;
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}
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}
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nsresult MLSFallback::Startup(nsIGeolocationUpdate* aWatcher,
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FallbackReason aReason) {
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if (mHandoffTimer || mMLSFallbackProvider) {
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return NS_OK;
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}
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mUpdateWatcher = aWatcher;
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// No need to schedule a timer callback if there is no startup delay.
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if (mDelayMs == 0) {
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mozilla::glean::geolocation::fallback.EnumGet(MapReasonToLabel(aReason))
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.Add();
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return CreateMLSFallbackProvider();
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}
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return NS_NewTimerWithCallback(getter_AddRefs(mHandoffTimer), this, mDelayMs,
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nsITimer::TYPE_ONE_SHOT);
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}
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nsresult MLSFallback::Shutdown(ShutdownReason aReason) {
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if (aReason == ShutdownReason::ProviderResponded) {
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mozilla::glean::geolocation::fallback
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.EnumGet(mozilla::glean::geolocation::FallbackLabel::eNone)
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.Add();
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}
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mUpdateWatcher = nullptr;
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if (mHandoffTimer) {
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mHandoffTimer->Cancel();
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mHandoffTimer = nullptr;
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}
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nsresult rv = NS_OK;
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if (mMLSFallbackProvider) {
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rv = mMLSFallbackProvider->Shutdown();
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mMLSFallbackProvider = nullptr;
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}
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return rv;
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}
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NS_IMETHODIMP
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MLSFallback::Notify(nsITimer* aTimer) {
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mozilla::glean::geolocation::fallback
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.EnumGet(mozilla::glean::geolocation::FallbackLabel::eOnTimeout)
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.Add();
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return CreateMLSFallbackProvider();
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}
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NS_IMETHODIMP
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MLSFallback::GetName(nsACString& aName) {
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aName.AssignLiteral("MLSFallback");
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return NS_OK;
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}
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nsresult MLSFallback::CreateMLSFallbackProvider() {
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if (mMLSFallbackProvider || !mUpdateWatcher) {
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return NS_OK;
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}
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MOZ_LOG(gGeolocationLog, mozilla::LogLevel::Debug,
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("Falling back to NetworkLocationProvider"));
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nsresult rv;
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mMLSFallbackProvider =
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do_CreateInstance("@mozilla.org/geolocation/mls-provider;1", &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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if (mMLSFallbackProvider) {
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rv = mMLSFallbackProvider->Startup();
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if (NS_SUCCEEDED(rv)) {
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MOZ_LOG(gGeolocationLog, mozilla::LogLevel::Debug,
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("Successfully started up NetworkLocationProvider"));
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mMLSFallbackProvider->Watch(mUpdateWatcher);
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}
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}
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mUpdateWatcher = nullptr;
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return rv;
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}
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