1/*
2 * Copyright (C) 2006, 2007, 2009, 2012 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#ifndef RenderFileUploadControl_h
22#define RenderFileUploadControl_h
23
24#include "core/rendering/RenderBlock.h"
25
26namespace WebCore {
27
28class HTMLInputElement;
29
30// Each RenderFileUploadControl contains a RenderButton (for opening the file chooser), and
31// sufficient space to draw a file icon and filename. The RenderButton has a shadow node
32// associated with it to receive click/hover events.
33
34class RenderFileUploadControl FINAL : public RenderBlock {
35public:
36    RenderFileUploadControl(HTMLInputElement*);
37    virtual ~RenderFileUploadControl();
38
39    virtual bool isFileUploadControl() const { return true; }
40
41    String buttonValue();
42    String fileTextValue() const;
43
44private:
45    virtual const char* renderName() const { return "RenderFileUploadControl"; }
46
47    virtual bool canBeReplacedWithInlineRunIn() const OVERRIDE;
48    virtual void updateFromElement();
49    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE;
50    virtual void computePreferredLogicalWidths();
51    virtual void paintObject(PaintInfo&, const LayoutPoint&);
52
53    virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
54
55    int maxFilenameWidth() const;
56
57    virtual PositionWithAffinity positionForPoint(const LayoutPoint&) OVERRIDE FINAL;
58
59    HTMLInputElement* uploadButton() const;
60
61    bool m_canReceiveDroppedFiles;
62};
63
64inline RenderFileUploadControl* toRenderFileUploadControl(RenderObject* object)
65{
66    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isFileUploadControl());
67    return static_cast<RenderFileUploadControl*>(object);
68}
69
70inline const RenderFileUploadControl* toRenderFileUploadControl(const RenderObject* object)
71{
72    ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isFileUploadControl());
73    return static_cast<const RenderFileUploadControl*>(object);
74}
75
76// This will catch anyone doing an unnecessary cast.
77void toRenderFileUploadControl(const RenderFileUploadControl*);
78
79} // namespace WebCore
80
81#endif // RenderFileUploadControl_h
82