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Diffstat (limited to 'chromium/cc/animation/animation_registrar.h')
-rw-r--r-- | chromium/cc/animation/animation_registrar.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/chromium/cc/animation/animation_registrar.h b/chromium/cc/animation/animation_registrar.h new file mode 100644 index 00000000000..579b11f8202 --- /dev/null +++ b/chromium/cc/animation/animation_registrar.h @@ -0,0 +1,65 @@ +// Copyright 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 CC_ANIMATION_ANIMATION_REGISTRAR_H_ +#define CC_ANIMATION_ANIMATION_REGISTRAR_H_ + +#include "base/containers/hash_tables.h" +#include "base/memory/ref_counted.h" +#include "base/memory/scoped_ptr.h" +#include "cc/base/cc_export.h" + +namespace cc { + +class LayerAnimationController; + +class CC_EXPORT AnimationRegistrar { + public: + typedef base::hash_map<int, LayerAnimationController*> AnimationControllerMap; + + static scoped_ptr<AnimationRegistrar> Create() { + return make_scoped_ptr(new AnimationRegistrar()); + } + + virtual ~AnimationRegistrar(); + + // If an animation has been registered for the given id, return it. Otherwise + // creates a new one and returns a scoped_refptr to it. + scoped_refptr<LayerAnimationController> GetAnimationControllerForId(int id); + + // Registers the given animation controller as active. An active animation + // controller is one that has a running animation that needs to be ticked. + void DidActivateAnimationController(LayerAnimationController* controller); + + // Unregisters the given animation controller. When this happens, the + // animation controller will no longer be ticked (since it's not active). It + // is not an error to call this function with a deactivated controller. + void DidDeactivateAnimationController(LayerAnimationController* controller); + + // Registers the given controller as alive. + void RegisterAnimationController(LayerAnimationController* controller); + + // Unregisters the given controller as alive. + void UnregisterAnimationController(LayerAnimationController* controller); + + const AnimationControllerMap& active_animation_controllers() const { + return active_animation_controllers_; + } + + const AnimationControllerMap& all_animation_controllers() const { + return all_animation_controllers_; + } + + private: + AnimationRegistrar(); + + AnimationControllerMap active_animation_controllers_; + AnimationControllerMap all_animation_controllers_; + + DISALLOW_COPY_AND_ASSIGN(AnimationRegistrar); +}; + +} // namespace cc + +#endif // CC_ANIMATION_ANIMATION_REGISTRAR_H_ |