1/*
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef ScrollbarThemeIOS_h
27#define ScrollbarThemeIOS_h
28
29#include "ScrollbarThemeComposite.h"
30
31namespace WebCore {
32
33class ScrollbarThemeIOS : public ScrollbarThemeComposite {
34public:
35    ScrollbarThemeIOS();
36    virtual ~ScrollbarThemeIOS();
37
38    virtual bool paint(ScrollbarThemeClient*, GraphicsContext*, const IntRect& damageRect) override;
39
40    virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar) override;
41
42    virtual bool supportsControlTints() const override { return true; }
43
44    virtual double initialAutoscrollTimerDelay() override;
45    virtual double autoscrollTimerDelay() override;
46
47    virtual ScrollbarButtonsPlacement buttonsPlacement() const override;
48
49    virtual void registerScrollbar(ScrollbarThemeClient*) override;
50    virtual void unregisterScrollbar(ScrollbarThemeClient*) override;
51
52protected:
53    virtual bool hasButtons(ScrollbarThemeClient*) override;
54    virtual bool hasThumb(ScrollbarThemeClient*) override;
55
56    virtual IntRect backButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false) override;
57    virtual IntRect forwardButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false) override;
58    virtual IntRect trackRect(ScrollbarThemeClient*, bool painting = false) override;
59
60    virtual int minimumThumbLength(ScrollbarThemeClient*) override;
61
62    virtual bool shouldCenterOnThumb(ScrollbarThemeClient*, const PlatformMouseEvent&) override;
63
64public:
65    void preferencesChanged();
66};
67
68}
69
70#endif // ScrollbarThemeIOS_h
71