Index: chrome/browser/extensions/api/dial/dial_registry.cc |
diff --git a/chrome/browser/extensions/api/dial/dial_registry.cc b/chrome/browser/extensions/api/dial/dial_registry.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0b064a280e72dcc77e1076525866391edb234175 |
--- /dev/null |
+++ b/chrome/browser/extensions/api/dial/dial_registry.cc |
@@ -0,0 +1,41 @@ |
+// Copyright (c) 2012 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "chrome/browser/extensions/api/dial/dial_registry.h" |
+ |
+#include "chrome/browser/extensions/api/dial/dial_api.h" |
+#include "chrome/browser/extensions/api/dial/dial_device_data.h" |
+#include "chrome/common/extensions/api/dial.h" |
+ |
+namespace extensions { |
+ |
+DialRegistry::DialRegistry(Observer* dial_api) |
+ : num_listeners_(0), discovering_(false), dial_api_(dial_api) { } |
+ |
+DialRegistry::~DialRegistry() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+} |
+ |
+void DialRegistry::OnListenerAdded() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ if (++num_listeners_ == 1) { |
+ DVLOG(1) << "Listener added; starting periodic discovery."; |
+ discovering_ = true; |
+ } |
+} |
+ |
+void DialRegistry::OnListenerRemoved() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ if (--num_listeners_ == 0) { |
+ DVLOG(1) << "Listeners removed; stopping periodic discovery."; |
+ discovering_ = false; |
+ } |
+} |
+ |
+bool DialRegistry::DiscoverNow() { |
+ DCHECK(thread_checker_.CalledOnValidThread()); |
+ return discovering_; |
+} |
+ |
+} // namespace extensions |