1/*
2 * This file is part of the select element renderer in WebCore.
3 *
4 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1.  Redistributions of source code must retain the above copyright
11 *     notice, this list of conditions and the following disclaimer.
12 * 2.  Redistributions in binary form must reproduce the above copyright
13 *     notice, this list of conditions and the following disclaimer in the
14 *     documentation and/or other materials provided with the distribution.
15 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16 *     its contributors may be used to endorse or promote products derived
17 *     from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef RenderListBox_h
32#define RenderListBox_h
33
34#include "core/rendering/RenderBlockFlow.h"
35
36namespace blink {
37
38class HTMLSelectElement;
39
40class RenderListBox FINAL : public RenderBlockFlow {
41public:
42    explicit RenderListBox(Element*);
43    virtual ~RenderListBox();
44
45    int size() const;
46
47    void paintInvalidationOfScrollbarIfNeeded();
48
49    // Unlike scrollRectToVisible this will not scroll parent boxes.
50    void scrollToRect(const LayoutRect&);
51private:
52    HTMLSelectElement* selectElement() const;
53
54    virtual const char* renderName() const OVERRIDE { return "RenderListBox"; }
55
56    virtual bool isListBox() const OVERRIDE { return true; }
57
58    virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const OVERRIDE;
59    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE;
60
61    virtual void stopAutoscroll() OVERRIDE;
62
63    void setHasVerticalScrollbar(bool hasScrollbar);
64    PassRefPtr<Scrollbar> createScrollbar();
65    void destroyScrollbar();
66
67    LayoutUnit defaultItemHeight() const;
68    LayoutUnit itemHeight() const;
69};
70
71DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderListBox, isListBox());
72
73} // namepace blink
74
75#endif // RenderListBox_h
76