Switch to use libcros to make changes to touchpad settings.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/300011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@29693 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 47 insertions, 0 deletions

diff --git a/chrome/browser/chromeos/synaptics_library.h b/chrome/browser/chromeos/synaptics_library.h
new file mode 100644
index 0000000..af15a49
--- /dev/null
+++ b/chrome/browser/chromeos/synaptics_library.h
@@ -0,0 +1,47 @@
+// Copyright (c) 2009 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_SYNAPTICS_LIBRARY_H_
+#define CHROME_BROWSER_CHROMEOS_SYNAPTICS_LIBRARY_H_
+
+#include "base/singleton.h"
+#include "third_party/cros/chromeos_synaptics.h"
+
+namespace chromeos {
+
+// This class handles the interaction with the ChromeOS synaptics library APIs.
+// Users can get an instance of this library class like this:
+//   SynapticsLibrary::Get()
+// For a list of SynapticsPrameters, see third_party/cros/chromeos_synaptics.h
+class SynapticsLibrary {
+ public:
+  // This gets the singleton SynapticsLibrary.
+  static SynapticsLibrary* Get();
+
+  // Returns true if the ChromeOS library was loaded.
+  static bool loaded();
+
+  // Sets a boolean parameter. The actual call will be run on the FILE thread.
+  void SetBoolParameter(SynapticsParameter param, bool value);
+
+  // Sets a range parameter. The actual call will be run on the FILE thread.
+  // Value should be between 1 and 10 inclusive.
+  void SetRangeParameter(SynapticsParameter param, int value);
+
+ private:
+  friend struct DefaultSingletonTraits<SynapticsLibrary>;
+
+  SynapticsLibrary() {}
+  ~SynapticsLibrary() {}
+
+  // This helper methods calls into the libcros library to set the parameter.
+  // This call is run on the FILE thread.
+  void SetParameter(SynapticsParameter param, int value);
+
+  DISALLOW_COPY_AND_ASSIGN(SynapticsLibrary);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_SYNAPTICS_LIBRARY_H_