1 /*
2 * Copyright (C) 2006, 2007, 2009 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 "FileChooser.h"
25 #include "RenderBlock.h"
26
27 namespace WebCore {
28
29 class HTMLInputElement;
30
31 // Each RenderFileUploadControl contains a RenderButton (for opening the file chooser), and
32 // sufficient space to draw a file icon and filename. The RenderButton has a shadow node
33 // associated with it to receive click/hover events.
34
35 class RenderFileUploadControl : public RenderBlock, private FileChooserClient {
36 public:
37 RenderFileUploadControl(HTMLInputElement*);
38 virtual ~RenderFileUploadControl();
39
40 void click();
41
42 void valueChanged();
43
44 void receiveDroppedFiles(const Vector<String>&);
45
46 String buttonValue();
47 String fileTextValue();
48
49 bool allowsMultipleFiles();
50
51 private:
renderName()52 virtual const char* renderName() const { return "RenderFileUploadControl"; }
53
54 virtual void updateFromElement();
55 virtual void calcPrefWidths();
56 virtual void paintObject(PaintInfo&, int tx, int ty);
57
58 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
59
60 int maxFilenameWidth() const;
61 PassRefPtr<RenderStyle> createButtonStyle(const RenderStyle* parentStyle) const;
62
63 RefPtr<HTMLInputElement> m_button;
64 RefPtr<FileChooser> m_fileChooser;
65 };
66
toRenderFileUploadControl(RenderObject * object)67 inline RenderFileUploadControl* toRenderFileUploadControl(RenderObject* object)
68 {
69 ASSERT(!object || !strcmp(object->renderName(), "RenderFileUploadControl"));
70 return static_cast<RenderFileUploadControl*>(object);
71 }
72
73 // This will catch anyone doing an unnecessary cast.
74 void toRenderFileUploadControl(const RenderFileUploadControl*);
75
76 } // namespace WebCore
77
78 #endif // RenderFileUploadControl_h
79