1/*
2 * This file is part of the WebKit project.
3 *
4 * Copyright (C) 2006 Apple Computer, Inc.
5 * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
6 * Copyright (C) 2007 Holger Hans Peter Freyther
7 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
8 * Copyright (C) 2008, 2009 Google, Inc.
9 * All rights reserved.
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * Library General Public License for more details.
20 *
21 * You should have received a copy of the GNU Library General Public License
22 * along with this library; see the file COPYING.LIB.  If not, write to
23 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 * Boston, MA 02110-1301, USA.
25 *
26 */
27
28#ifndef RenderThemeChromiumSkia_h
29#define RenderThemeChromiumSkia_h
30
31#include "core/rendering/RenderTheme.h"
32
33namespace WebCore {
34
35class RenderProgress;
36
37class RenderThemeChromiumSkia : public RenderTheme {
38public:
39    RenderThemeChromiumSkia();
40    virtual ~RenderThemeChromiumSkia();
41
42    virtual String extraDefaultStyleSheet();
43    virtual String extraQuirksStyleSheet();
44
45    virtual Color platformTapHighlightColor() const OVERRIDE
46    {
47        return Color(defaultTapHighlightColor);
48    }
49
50    // A method asking if the theme's controls actually care about redrawing when hovered.
51    virtual bool supportsHover(const RenderStyle*) const;
52
53    // A method asking if the theme is able to draw the focus ring.
54    virtual bool supportsFocusRing(const RenderStyle*) const;
55
56    virtual bool supportsClosedCaptioning() const OVERRIDE;
57    // The platform selection color.
58    virtual Color platformActiveSelectionBackgroundColor() const;
59    virtual Color platformInactiveSelectionBackgroundColor() const;
60    virtual Color platformActiveSelectionForegroundColor() const;
61    virtual Color platformInactiveSelectionForegroundColor() const;
62    virtual Color platformFocusRingColor() const;
63
64    // To change the blink interval, override caretBlinkIntervalInternal instead of this one so that we may share layout test code an intercepts.
65    virtual double caretBlinkInterval() const;
66
67    // System fonts.
68    virtual void systemFont(CSSValueID, FontDescription&) const;
69
70    virtual int minimumMenuListSize(RenderStyle*) const;
71
72    virtual void setCheckboxSize(RenderStyle*) const;
73
74    virtual void setRadioSize(RenderStyle*) const;
75
76    virtual void adjustButtonStyle(RenderStyle*, Element*) const;
77
78    virtual bool paintTextArea(RenderObject*, const PaintInfo&, const IntRect&);
79
80    virtual void adjustSearchFieldStyle(RenderStyle*, Element*) const;
81    virtual bool paintSearchField(RenderObject*, const PaintInfo&, const IntRect&);
82
83    virtual void adjustSearchFieldCancelButtonStyle(RenderStyle*, Element*) const;
84    virtual bool paintSearchFieldCancelButton(RenderObject*, const PaintInfo&, const IntRect&);
85
86    virtual void adjustSearchFieldDecorationStyle(RenderStyle*, Element*) const;
87
88    virtual void adjustSearchFieldResultsDecorationStyle(RenderStyle*, Element*) const;
89    virtual bool paintSearchFieldResultsDecoration(RenderObject*, const PaintInfo&, const IntRect&);
90
91    virtual bool paintMediaSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);
92    virtual bool paintMediaVolumeSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);
93    virtual void adjustSliderThumbSize(RenderStyle*, Element*) const;
94    virtual bool paintMediaSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);
95    virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const PaintInfo&, const IntRect&);
96    virtual bool paintMediaVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);
97    virtual bool paintMediaPlayButton(RenderObject*, const PaintInfo&, const IntRect&);
98    virtual bool paintMediaMuteButton(RenderObject*, const PaintInfo&, const IntRect&);
99    virtual String formatMediaControlsTime(float time) const;
100    virtual String formatMediaControlsCurrentTime(float currentTime, float duration) const;
101    virtual bool paintMediaFullscreenButton(RenderObject*, const PaintInfo&, const IntRect&);
102
103    // MenuList refers to an unstyled menulist (meaning a menulist without
104    // background-color or border set) and MenuListButton refers to a styled
105    // menulist (a menulist with background-color or border set). They have
106    // this distinction to support showing aqua style themes whenever they
107    // possibly can, which is something we don't want to replicate.
108    //
109    // In short, we either go down the MenuList code path or the MenuListButton
110    // codepath. We never go down both. And in both cases, they render the
111    // entire menulist.
112    virtual void adjustMenuListStyle(RenderStyle*, Element*) const;
113    virtual void adjustMenuListButtonStyle(RenderStyle*, Element*) const;
114    virtual bool paintMenuListButton(RenderObject*, const PaintInfo&, const IntRect&);
115
116    virtual double animationRepeatIntervalForProgressBar(RenderProgress*) const;
117    virtual double animationDurationForProgressBar(RenderProgress*) const;
118
119    // These methods define the padding for the MenuList's inner block.
120    virtual int popupInternalPaddingLeft(RenderStyle*) const;
121    virtual int popupInternalPaddingRight(RenderStyle*) const;
122    virtual int popupInternalPaddingTop(RenderStyle*) const;
123    virtual int popupInternalPaddingBottom(RenderStyle*) const;
124
125    // Media controls
126    virtual bool hasOwnDisabledStateHandlingFor(ControlPart) const { return true; }
127    virtual bool usesVerticalVolumeSlider() const { return false; }
128
129    // Provide a way to pass the default font size from the Settings object
130    // to the render theme. FIXME: http://b/1129186 A cleaner way would be
131    // to remove the default font size from this object and have callers
132    // that need the value to get it directly from the appropriate Settings
133    // object.
134    static void setDefaultFontSize(int);
135
136protected:
137    virtual double caretBlinkIntervalInternal() const;
138
139    virtual int menuListArrowPadding() const;
140
141    IntRect determinateProgressValueRectFor(RenderProgress*, const IntRect&) const;
142    IntRect indeterminateProgressValueRectFor(RenderProgress*, const IntRect&) const;
143    IntRect progressValueRectFor(RenderProgress*, const IntRect&) const;
144
145    class DirectionFlippingScope {
146    public:
147        DirectionFlippingScope(RenderObject*, const PaintInfo&, const IntRect&);
148        ~DirectionFlippingScope();
149
150    private:
151        bool m_needsFlipping;
152        const PaintInfo& m_paintInfo;
153    };
154
155private:
156    virtual bool shouldShowPlaceholderWhenFocused() const OVERRIDE;
157
158    int menuListInternalPadding(RenderStyle*, int paddingType) const;
159    bool paintMediaButtonInternal(GraphicsContext*, const IntRect&, Image*);
160    IntRect convertToPaintingRect(RenderObject* inputRenderer, const RenderObject* partRenderer, LayoutRect partRect, const IntRect& localOffset) const;
161
162    static const RGBA32 defaultTapHighlightColor = 0x2e000000; // 18% black.
163};
164
165} // namespace WebCore
166
167#endif // RenderThemeChromiumSkia_h
168