Move *Animation to app/

http://crbug.com/11387

Review URL: http://codereview.chromium.org/109001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15275 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 59 insertions, 0 deletions

diff --git a/app/throb_animation.h b/app/throb_animation.h
new file mode 100644
index 0000000..637e8e0
--- /dev/null
+++ b/app/throb_animation.h
@@ -0,0 +1,59 @@
+// Copyright (c) 2006-2008 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 APP_THROB_ANIMATION_H_
+#define APP_THROB_ANIMATION_H_
+
+#include "app/slide_animation.h"
+
+// A subclass of SlideAnimation that can continually slide. All of the Animation
+// methods behave like that of SlideAnimation: transition to the next state.
+// The StartThrobbing method causes the ThrobAnimation to cycle between hidden
+// and shown for a set number of cycles.
+//
+// A ThrobAnimation has two durations: the duration used when behavior like
+// a SlideAnimation, and the duration used when throbbing.
+class ThrobAnimation : public SlideAnimation {
+ public:
+  explicit ThrobAnimation(AnimationDelegate* target);
+  virtual ~ThrobAnimation() {}
+
+  // Starts throbbing. cycles_til_stop gives the number of cycles to do before
+  // stopping.
+  void StartThrobbing(int cycles_til_stop);
+
+  // Sets the duration of the slide animation when throbbing.
+  void SetThrobDuration(int duration) { throb_duration_ = duration; }
+
+  // Overridden to reset to the slide duration.
+  virtual void Reset();
+  virtual void Show();
+  virtual void Hide();
+
+  // Overriden to continually throb (assuming we're throbbing).
+  virtual void Step();
+
+  // Overridden to maintain the slide duration.
+  virtual void SetSlideDuration(int duration) { slide_duration_ = duration; }
+
+ private:
+  // Resets state such that we behave like SlideAnimation.
+  void ResetForSlide();
+
+  // Duration of the slide animation.
+  int slide_duration_;
+
+  // Duration of the slide animation when throbbing.
+  int throb_duration_;
+
+  // If throbbing, this is the number of cycles left.
+  int cycles_remaining_;
+
+  // Are we throbbing?
+  bool throbbing_;
+
+  DISALLOW_COPY_AND_ASSIGN(ThrobAnimation);
+};
+
+#endif  // APP_THROB_ANIMATION_H_