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// Copyright (c) 2011 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 UI_GFX_COMPOSITOR_LAYER_PROPERTY_SETTER_H_
#define UI_GFX_COMPOSITOR_LAYER_PROPERTY_SETTER_H_
#pragma once
namespace gfx {
class Rect;
}
namespace ui {
class Layer;
class Transform;
}
namespace views {
// When a property of layer needs to be changed it is set by way of
// LayerPropertySetter. This enables LayerPropertySetter to animate property
// changes.
class LayerPropertySetter {
public:
// Creates a LayerPropertySetter that immediately sets the values on the
// layer. Ownership returns to caller.
static LayerPropertySetter* CreateDefaultSetter();
// Creates a LayerPropertySetter that animates changes. Ownership returns to
// caller.
static LayerPropertySetter* CreateAnimatingSetter();
virtual ~LayerPropertySetter() {}
// Invoked when the LayerPropertySetter is to be used for a particular Layer.
// This is invoked whenever a new Layer is created. A LayerPropertySetter is
// only associated with one Layer at a time.
virtual void Installed(ui::Layer* layer) = 0;
// Invoked when the Layer is destroyed.
virtual void Uninstalled(ui::Layer* layer) = 0;
// Sets the transform on the Layer.
virtual void SetTransform(ui::Layer* layer,
const ui::Transform& transform) = 0;
// Sets the bounds of the layer.
virtual void SetBounds(ui::Layer* layer, const gfx::Rect& bounds) = 0;
};
} // namespace views
#endif // UI_GFX_COMPOSITOR_LAYER_PROPERTY_SETTER_H_
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