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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "MLSFallback.h"
#include "nsGeoPosition.h"
#include "nsIGeolocationProvider.h"
#include "nsServiceManagerUtils.h"
NS_IMPL_ISUPPORTS(MLSFallback, nsITimerCallback)
MLSFallback::MLSFallback(uint32_t delay)
: mDelayMs(delay)
{
}
MLSFallback::~MLSFallback()
{
}
nsresult
MLSFallback::Startup(nsIGeolocationUpdate* aWatcher)
{
if (mHandoffTimer || mMLSFallbackProvider) {
return NS_OK;
}
mUpdateWatcher = aWatcher;
nsresult rv;
mHandoffTimer = do_CreateInstance("@mozilla.org/timer;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = mHandoffTimer->InitWithCallback(this, mDelayMs, nsITimer::TYPE_ONE_SHOT);
return rv;
}
nsresult
MLSFallback::Shutdown()
{
mUpdateWatcher = nullptr;
if (mHandoffTimer) {
mHandoffTimer->Cancel();
mHandoffTimer = nullptr;
}
nsresult rv = NS_OK;
if (mMLSFallbackProvider) {
rv = mMLSFallbackProvider->Shutdown();
mMLSFallbackProvider = nullptr;
}
return rv;
}
NS_IMETHODIMP
MLSFallback::Notify(nsITimer* aTimer)
{
return CreateMLSFallbackProvider();
}
nsresult
MLSFallback::CreateMLSFallbackProvider()
{
if (mMLSFallbackProvider || !mUpdateWatcher) {
return NS_OK;
}
nsresult rv;
mMLSFallbackProvider = do_CreateInstance("@mozilla.org/geolocation/mls-provider;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
if (mMLSFallbackProvider) {
rv = mMLSFallbackProvider->Startup();
if (NS_SUCCEEDED(rv)) {
mMLSFallbackProvider->Watch(mUpdateWatcher);
}
}
mUpdateWatcher = nullptr;
return rv;
}
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