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      1 /*
      2  * This file is part of the theme implementation for form controls in WebCore.
      3  *
      4  * Copyright (C) 2005 Apple Computer, Inc.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #ifndef RenderThemeMac_h
     24 #define RenderThemeMac_h
     25 
     26 #import "RenderTheme.h"
     27 #import <wtf/HashMap.h>
     28 #import <wtf/RetainPtr.h>
     29 
     30 #ifdef __OBJC__
     31 @class WebCoreRenderThemeNotificationObserver;
     32 #else
     33 class WebCoreRenderThemeNotificationObserver;
     34 #endif
     35 
     36 namespace WebCore {
     37 
     38 class RenderStyle;
     39 
     40 class RenderThemeMac : public RenderTheme {
     41 public:
     42     static PassRefPtr<RenderTheme> create();
     43 
     44     // A method asking if the control changes its tint when the window has focus or not.
     45     virtual bool controlSupportsTints(const RenderObject*) const;
     46 
     47     // A general method asking if any control tinting is supported at all.
     48     virtual bool supportsControlTints() const { return true; }
     49 
     50     virtual void adjustRepaintRect(const RenderObject*, IntRect&);
     51 
     52     virtual bool isControlStyled(const RenderStyle*, const BorderData&,
     53                                  const FillLayer&, const Color& backgroundColor) const;
     54 
     55     virtual Color platformActiveSelectionBackgroundColor() const;
     56     virtual Color platformInactiveSelectionBackgroundColor() const;
     57     virtual Color platformActiveListBoxSelectionBackgroundColor() const;
     58     virtual Color platformActiveListBoxSelectionForegroundColor() const;
     59     virtual Color platformInactiveListBoxSelectionBackgroundColor() const;
     60     virtual Color platformInactiveListBoxSelectionForegroundColor() const;
     61     virtual Color platformFocusRingColor() const;
     62 
     63     virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return SmallScrollbar; }
     64 
     65     virtual void platformColorsDidChange();
     66 
     67     // System fonts.
     68     virtual void systemFont(int cssValueId, FontDescription&) const;
     69 
     70     virtual int minimumMenuListSize(RenderStyle*) const;
     71 
     72     virtual void adjustSliderThumbSize(RenderObject*) const;
     73 
     74     virtual int popupInternalPaddingLeft(RenderStyle*) const;
     75     virtual int popupInternalPaddingRight(RenderStyle*) const;
     76     virtual int popupInternalPaddingTop(RenderStyle*) const;
     77     virtual int popupInternalPaddingBottom(RenderStyle*) const;
     78 
     79     virtual bool paintCapsLockIndicator(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
     80 
     81     virtual Color systemColor(int cssValueId) const;
     82 
     83 protected:
     84     virtual bool supportsSelectionForegroundColors() const { return false; }
     85 
     86     virtual bool paintTextField(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
     87     virtual void adjustTextFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
     88 
     89     virtual bool paintTextArea(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
     90     virtual void adjustTextAreaStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
     91 
     92     virtual bool paintMenuList(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
     93     virtual void adjustMenuListStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
     94 
     95     virtual bool paintMenuListButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
     96     virtual void adjustMenuListButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
     97 
     98     virtual bool paintSliderTrack(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
     99     virtual void adjustSliderTrackStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    100 
    101     virtual bool paintSliderThumb(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    102     virtual void adjustSliderThumbStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    103 
    104     virtual bool paintSearchField(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    105     virtual void adjustSearchFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    106 
    107     virtual void adjustSearchFieldCancelButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    108     virtual bool paintSearchFieldCancelButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    109 
    110     virtual void adjustSearchFieldDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    111     virtual bool paintSearchFieldDecoration(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    112 
    113     virtual void adjustSearchFieldResultsDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    114     virtual bool paintSearchFieldResultsDecoration(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    115 
    116     virtual void adjustSearchFieldResultsButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    117     virtual bool paintSearchFieldResultsButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    118 
    119 #if ENABLE(VIDEO)
    120     virtual bool paintMediaFullscreenButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    121     virtual bool paintMediaPlayButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    122     virtual bool paintMediaMuteButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    123     virtual bool paintMediaSeekBackButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    124     virtual bool paintMediaSeekForwardButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    125     virtual bool paintMediaSliderTrack(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    126     virtual bool paintMediaSliderThumb(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    127     virtual bool paintMediaRewindButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    128     virtual bool paintMediaReturnToRealtimeButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    129     virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    130     virtual bool paintMediaControlsBackground(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    131     virtual bool paintMediaCurrentTime(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    132     virtual bool paintMediaTimeRemaining(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    133 
    134     // Media controls
    135     virtual String extraMediaControlsStyleSheet();
    136 
    137     virtual bool shouldRenderMediaControlPart(ControlPart, Element*);
    138 #endif
    139 
    140 private:
    141     RenderThemeMac();
    142     virtual ~RenderThemeMac();
    143 
    144     IntRect inflateRect(const IntRect&, const IntSize&, const int* margins, float zoomLevel = 1.0f) const;
    145 
    146     FloatRect convertToPaintingRect(const RenderObject* inputRenderer, const RenderObject* partRenderer, const FloatRect& inputRect, const IntRect& r) const;
    147 
    148     // Get the control size based off the font.  Used by some of the controls (like buttons).
    149     NSControlSize controlSizeForFont(RenderStyle*) const;
    150     NSControlSize controlSizeForSystemFont(RenderStyle*) const;
    151     void setControlSize(NSCell*, const IntSize* sizes, const IntSize& minSize, float zoomLevel = 1.0f);
    152     void setSizeFromFont(RenderStyle*, const IntSize* sizes) const;
    153     IntSize sizeForFont(RenderStyle*, const IntSize* sizes) const;
    154     IntSize sizeForSystemFont(RenderStyle*, const IntSize* sizes) const;
    155     void setFontFromControlSize(CSSStyleSelector*, RenderStyle*, NSControlSize) const;
    156 
    157     void updateCheckedState(NSCell*, const RenderObject*);
    158     void updateEnabledState(NSCell*, const RenderObject*);
    159     void updateFocusedState(NSCell*, const RenderObject*);
    160     void updatePressedState(NSCell*, const RenderObject*);
    161 
    162     // Helpers for adjusting appearance and for painting
    163 
    164     void setPopupButtonCellState(const RenderObject*, const IntRect&);
    165     const IntSize* popupButtonSizes() const;
    166     const int* popupButtonMargins() const;
    167     const int* popupButtonPadding(NSControlSize) const;
    168     void paintMenuListButtonGradients(RenderObject*, const RenderObject::PaintInfo&, const IntRect&);
    169     const IntSize* menuListSizes() const;
    170 
    171     const IntSize* searchFieldSizes() const;
    172     const IntSize* cancelButtonSizes() const;
    173     const IntSize* resultsButtonSizes() const;
    174     void setSearchCellState(RenderObject*, const IntRect&);
    175     void setSearchFieldSize(RenderStyle*) const;
    176 
    177     NSPopUpButtonCell* popupButton() const;
    178     NSSearchFieldCell* search() const;
    179     NSMenu* searchMenuTemplate() const;
    180     NSSliderCell* sliderThumbHorizontal() const;
    181     NSSliderCell* sliderThumbVertical() const;
    182 
    183 private:
    184     mutable RetainPtr<NSPopUpButtonCell> m_popupButton;
    185     mutable RetainPtr<NSSearchFieldCell> m_search;
    186     mutable RetainPtr<NSMenu> m_searchMenuTemplate;
    187     mutable RetainPtr<NSSliderCell> m_sliderThumbHorizontal;
    188     mutable RetainPtr<NSSliderCell> m_sliderThumbVertical;
    189 
    190     bool m_isSliderThumbHorizontalPressed;
    191     bool m_isSliderThumbVerticalPressed;
    192 
    193     mutable HashMap<int, RGBA32> m_systemColorCache;
    194 
    195     RetainPtr<WebCoreRenderThemeNotificationObserver> m_notificationObserver;
    196 };
    197 
    198 } // namespace WebCore
    199 
    200 #endif // RenderThemeMac_h
    201