1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CONTENT_BROWSER_ANDROID_EDGE_EFFECT_H_
6 #define CONTENT_BROWSER_ANDROID_EDGE_EFFECT_H_
8 #include "base/memory/scoped_ptr.h"
9 #include "content/browser/android/edge_effect_base.h"
16 class SystemUIResourceManager;
21 // |EdgeEffect| mirrors its Android counterpart, EdgeEffect.java.
22 // Conscious tradeoffs were made to align this as closely as possible with the
23 // the original Android java version.
24 // All coordinates and dimensions are in device pixels.
25 class EdgeEffect : public EdgeEffectBase {
27 explicit EdgeEffect(ui::SystemUIResourceManager* resource_manager,
28 float device_scale_factor);
29 virtual ~EdgeEffect();
31 virtual void Pull(base::TimeTicks current_time,
33 float displacement) OVERRIDE;
34 virtual void Absorb(base::TimeTicks current_time, float velocity) OVERRIDE;
35 virtual bool Update(base::TimeTicks current_time) OVERRIDE;
36 virtual void Release(base::TimeTicks current_time) OVERRIDE;
38 virtual void Finish() OVERRIDE;
39 virtual bool IsFinished() const OVERRIDE;
41 virtual void ApplyToLayers(const gfx::SizeF& size,
42 const gfx::Transform& transform) OVERRIDE;
43 virtual void SetParent(cc::Layer* parent) OVERRIDE;
45 // Thread-safe trigger to load resources.
46 static void PreloadResources(ui::SystemUIResourceManager* resource_manager);
50 scoped_ptr<EffectLayer> edge_;
51 scoped_ptr<EffectLayer> glow_;
53 float base_edge_height_;
54 float base_glow_height_;
61 float edge_alpha_start_;
62 float edge_alpha_finish_;
63 float edge_scale_y_start_;
64 float edge_scale_y_finish_;
65 float glow_alpha_start_;
66 float glow_alpha_finish_;
67 float glow_scale_y_start_;
68 float glow_scale_y_finish_;
70 base::TimeTicks start_time_;
71 base::TimeDelta duration_;
77 DISALLOW_COPY_AND_ASSIGN(EdgeEffect);
80 } // namespace content
82 #endif // CONTENT_BROWSER_ANDROID_EDGE_EFFECT_H_