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-rw-r--r--dom/geolocation/MLSFallback.cpp82
1 files changed, 82 insertions, 0 deletions
diff --git a/dom/geolocation/MLSFallback.cpp b/dom/geolocation/MLSFallback.cpp
new file mode 100644
index 000000000..6cd355ed7
--- /dev/null
+++ b/dom/geolocation/MLSFallback.cpp
@@ -0,0 +1,82 @@
+/* -*- 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 "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;
+}
+