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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 CCScrollbarGeometryFixedThumb_h | 5 #ifndef CCScrollbarGeometryFixedThumb_h |
6 #define CCScrollbarGeometryFixedThumb_h | 6 #define CCScrollbarGeometryFixedThumb_h |
7 | 7 |
8 #include "CCScrollbarGeometryStub.h" | 8 #include "CCScrollbarGeometryStub.h" |
9 #include "IntSize.h" | 9 #include "IntSize.h" |
10 | 10 |
11 namespace cc { | 11 namespace cc { |
12 | 12 |
13 // This scrollbar geometry class behaves exactly like a normal geometry except | 13 // This scrollbar geometry class behaves exactly like a normal geometry except |
14 // it always returns a fixed thumb length. This allows a page to zoom (changing | 14 // it always returns a fixed thumb length. This allows a page to zoom (changing |
15 // the total size of the scrollable area, changing the thumb length) while not | 15 // the total size of the scrollable area, changing the thumb length) while not |
16 // requiring the thumb resource to be repainted. | 16 // requiring the thumb resource to be repainted. |
17 class CCScrollbarGeometryFixedThumb : public CCScrollbarGeometryStub { | 17 class ScrollbarGeometryFixedThumb : public ScrollbarGeometryStub { |
18 public: | 18 public: |
19 static scoped_ptr<CCScrollbarGeometryFixedThumb> create(scoped_ptr<WebKit::W
ebScrollbarThemeGeometry>); | 19 static scoped_ptr<ScrollbarGeometryFixedThumb> create(scoped_ptr<WebKit::Web
ScrollbarThemeGeometry>); |
20 virtual ~CCScrollbarGeometryFixedThumb(); | 20 virtual ~ScrollbarGeometryFixedThumb(); |
21 | 21 |
22 // Update thumb length from scrollbar | 22 // Update thumb length from scrollbar |
23 void update(WebKit::WebScrollbar*); | 23 void update(WebKit::WebScrollbar*); |
24 | 24 |
25 // WebScrollbarThemeGeometry interface | 25 // WebScrollbarThemeGeometry interface |
26 virtual WebKit::WebScrollbarThemeGeometry* clone() const OVERRIDE; | 26 virtual WebKit::WebScrollbarThemeGeometry* clone() const OVERRIDE; |
27 virtual int thumbLength(WebKit::WebScrollbar*) OVERRIDE; | 27 virtual int thumbLength(WebKit::WebScrollbar*) OVERRIDE; |
28 virtual int thumbPosition(WebKit::WebScrollbar*) OVERRIDE; | 28 virtual int thumbPosition(WebKit::WebScrollbar*) OVERRIDE; |
29 virtual void splitTrack(WebKit::WebScrollbar*, const WebKit::WebRect& track,
WebKit::WebRect& startTrack, WebKit::WebRect& thumb, WebKit::WebRect& endTrack)
OVERRIDE; | 29 virtual void splitTrack(WebKit::WebScrollbar*, const WebKit::WebRect& track,
WebKit::WebRect& startTrack, WebKit::WebRect& thumb, WebKit::WebRect& endTrack)
OVERRIDE; |
30 | 30 |
31 private: | 31 private: |
32 explicit CCScrollbarGeometryFixedThumb(scoped_ptr<WebKit::WebScrollbarThemeG
eometry>); | 32 explicit ScrollbarGeometryFixedThumb(scoped_ptr<WebKit::WebScrollbarThemeGeo
metry>); |
33 | 33 |
34 IntSize m_thumbSize; | 34 IntSize m_thumbSize; |
35 }; | 35 }; |
36 | 36 |
37 } | 37 } |
38 | 38 |
39 #endif | 39 #endif |
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