1 files changed, 32 insertions, 0 deletions
diff --git a/xfa_test/pdf/fading_control.h b/xfa_test/pdf/fading_control.h
new file mode 100644
index 0000000000..03ac134698
--- /dev/null
+++ b/xfa_test/pdf/fading_control.h
@@ -0,0 +1,32 @@
+// 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.
+
+#ifndef PDF_FADING_CONTROL_H_
+#define PDF_FADING_CONTROL_H_
+
+#include "pdf/control.h"
+
+namespace chrome_pdf {
+
+class FadingControl : public Control {
+ public:
+  FadingControl();
+  virtual ~FadingControl();
+
+  virtual void OnTimerFired(uint32 timer_id);
+
+  // Fade In/Out control depending on visible flag over the time of time_ms.
+  virtual void Fade(bool visible, uint32 time_ms);
+
+  virtual void OnFadeInComplete() {}
+  virtual void OnFadeOutComplete() {}
+
+ private:
+  int alpha_shift_;
+  uint32 timer_id_;
+};
+
+}  // namespace chrome_pdf
+
+#endif  // PDF_FADING_CONTROL_H_