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      1 /*
      2  * Copyright 2006, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 COMPUTER, 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 RenderThemeAndroid_h
     27 #define RenderThemeAndroid_h
     28 
     29 #include "PaintInfo.h"
     30 #include "RenderTheme.h"
     31 
     32 namespace WebCore {
     33 
     34 struct ThemeData {
     35     ThemeData()
     36         : m_part(0)
     37         , m_state(0)
     38     {
     39     }
     40 
     41     unsigned m_part;
     42     unsigned m_state;
     43 };
     44 
     45 class RenderThemeAndroid : public RenderTheme {
     46 public:
     47     static PassRefPtr<RenderTheme> create();
     48     ~RenderThemeAndroid();
     49 
     50     virtual bool stateChanged(RenderObject*, ControlState) const;
     51 
     52     virtual bool supportsFocusRing(const RenderStyle*) const;
     53     // A method asking if the theme's controls actually care about redrawing when hovered.
     54     virtual bool supportsHover(const RenderStyle* style) const { return style->affectedByHoverRules(); }
     55 
     56     virtual int baselinePosition(const RenderObject*) const;
     57 
     58     virtual Color platformActiveSelectionBackgroundColor() const;
     59     virtual Color platformInactiveSelectionBackgroundColor() const;
     60     virtual Color platformActiveSelectionForegroundColor() const;
     61     virtual Color platformInactiveSelectionForegroundColor() const;
     62     virtual Color platformTextSearchHighlightColor() const;
     63     virtual Color platformFocusRingColor() const;
     64 
     65     virtual Color platformActiveListBoxSelectionBackgroundColor() const;
     66     virtual Color platformInactiveListBoxSelectionBackgroundColor() const;
     67     virtual Color platformActiveListBoxSelectionForegroundColor() const;
     68     virtual Color platformInactiveListBoxSelectionForegroundColor() const;
     69 
     70     virtual Color platformActiveTextSearchHighlightColor() const;
     71     virtual Color platformInactiveTextSearchHighlightColor() const;
     72 
     73     virtual void systemFont(int, WebCore::FontDescription&) const {}
     74 
     75     virtual int minimumMenuListSize(RenderStyle*) const { return 0; }
     76 
     77 protected:
     78     virtual bool paintCheckbox(RenderObject*, const PaintInfo&, const IntRect&);
     79     virtual void setCheckboxSize(RenderStyle*) const;
     80 
     81 #if ENABLE(VIDEO)
     82     virtual String extraMediaControlsStyleSheet();
     83     virtual void adjustSliderThumbSize(RenderObject* o) const;
     84     virtual bool shouldRenderMediaControlPart(ControlPart part, Element* e);
     85     virtual bool paintMediaFullscreenButton(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     86     virtual bool paintMediaMuteButton(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     87     virtual bool paintMediaPlayButton(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     88     virtual bool paintMediaSeekBackButton(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     89     virtual bool paintMediaSeekForwardButton(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     90     virtual bool paintMediaSliderTrack(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     91     virtual bool paintMediaSliderThumb(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r);
     92     virtual bool paintMediaControlsBackground(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect);
     93     virtual double mediaControlsFadeInDuration() { return 0.5; }
     94     virtual double mediaControlsFadeOutDuration() { return 0.5; }
     95 #endif
     96 
     97     virtual bool paintRadio(RenderObject*, const PaintInfo&, const IntRect&);
     98     virtual void setRadioSize(RenderStyle*) const;
     99 
    100     virtual void adjustButtonStyle(CSSStyleSelector*, RenderStyle*, WebCore::Element*) const;
    101     virtual bool paintButton(RenderObject*, const PaintInfo&, const IntRect&);
    102 
    103     virtual void adjustTextFieldStyle(CSSStyleSelector*, RenderStyle*, WebCore::Element*) const;
    104     virtual bool paintTextField(RenderObject*, const PaintInfo&, const IntRect&);
    105 
    106     virtual void adjustTextAreaStyle(CSSStyleSelector*, RenderStyle*, WebCore::Element*) const;
    107     virtual bool paintTextArea(RenderObject*, const PaintInfo&, const IntRect&);
    108 
    109     bool paintCombo(RenderObject*, const PaintInfo&,  const IntRect&);
    110 
    111     virtual void adjustListboxStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    112     virtual void adjustMenuListStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    113     virtual bool paintMenuList(RenderObject*, const PaintInfo&, const IntRect&);
    114 
    115     virtual void adjustMenuListButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    116     virtual bool paintMenuListButton(RenderObject*, const PaintInfo&, const IntRect&);
    117 
    118     virtual void adjustSearchFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    119     virtual bool paintSearchField(RenderObject*, const PaintInfo&, const IntRect&);
    120 
    121     virtual bool paintSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);
    122     virtual bool paintSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);
    123 
    124 private:
    125     RenderThemeAndroid();
    126     void addIntrinsicMargins(RenderStyle*) const;
    127     void close();
    128 
    129     bool supportsFocus(ControlPart);
    130     friend RenderTheme* theme();
    131 };
    132 
    133 } // namespace WebCore
    134 
    135 #endif // RenderThemeAndroid_h
    136