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Side by Side Diff: chrome/browser/ui/views/frame/scroll_end_effect_controller.h

Issue 22265009: Implement initial version of scroll end effect Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Code cleanup for sadrul@ Created 7 years, 3 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_SCROLL_END_EFFECT_CONTROLLER_H_ 5 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_SCROLL_END_EFFECT_CONTROLLER_H_
6 #define CHROME_BROWSER_UI_VIEWS_FRAME_SCROLL_END_EFFECT_CONTROLLER_H_ 6 #define CHROME_BROWSER_UI_VIEWS_FRAME_SCROLL_END_EFFECT_CONTROLLER_H_
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 9
10 class BrowserView;
sky 2013/09/05 21:12:57 don't need BrowserView here.
rharrison 2013/09/09 20:01:17 Done.
11 class ScrollEndEffectControllerDelegate;
12
10 // The controller receives the raw y-deltas generated by the overscroll 13 // The controller receives the raw y-deltas generated by the overscroll
11 // controller and is resonsible for converting them in to the scroll end 14 // controller and is resonsible for converting them in to the scroll end
12 // effect. This effect occurs in the vertical overscroll case and is used to 15 // effect. This effect occurs in the vertical overscroll case and is used to
13 // visually indicate to the user that they have reached the end of the content 16 // visually indicate to the user that they have reached the end of the content
14 // that they are scrolling. 17 // that they are scrolling.
15 class ScrollEndEffectController { 18 class ScrollEndEffectController {
16 public: 19 public:
17 ScrollEndEffectController() {} 20 ScrollEndEffectController() {}
18 virtual ~ScrollEndEffectController() {} 21 virtual ~ScrollEndEffectController() {}
19 22
20 static ScrollEndEffectController* Create(); 23 static ScrollEndEffectController* Create(
24 ScrollEndEffectControllerDelegate* delegate);
21 25
22 // Interface that allows vertical overscroll activies to be communicated to 26 // Interface that allows vertical overscroll activies to be communicated to
23 // the controller. 27 // the controller.
24 virtual void OverscrollUpdate(int delta_y) = 0; 28 virtual void OverscrollUpdate(int delta_y) = 0;
25 29
26 private: 30 private:
27 DISALLOW_COPY_AND_ASSIGN(ScrollEndEffectController); 31 DISALLOW_COPY_AND_ASSIGN(ScrollEndEffectController);
28 }; 32 };
29 33
30 #endif // CHROME_BROWSER_UI_VIEWS_FRAME_SCROLL_END_EFFECT_CONTROLLER_H_ 34 #endif // CHROME_BROWSER_UI_VIEWS_FRAME_SCROLL_END_EFFECT_CONTROLLER_H_
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