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      1 /*
      2  * This file is part of the theme implementation for form controls in WebCore.
      3  *
      4  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 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 class RenderProgress;
     31 
     32 #ifdef __OBJC__
     33 @class WebCoreRenderThemeNotificationObserver;
     34 #else
     35 class WebCoreRenderThemeNotificationObserver;
     36 #endif
     37 
     38 namespace WebCore {
     39 
     40 class RenderStyle;
     41 
     42 class RenderThemeMac : public RenderTheme {
     43 public:
     44     static PassRefPtr<RenderTheme> create();
     45 
     46     // A method asking if the control changes its tint when the window has focus or not.
     47     virtual bool controlSupportsTints(const RenderObject*) const;
     48 
     49     // A general method asking if any control tinting is supported at all.
     50     virtual bool supportsControlTints() const { return true; }
     51 
     52     virtual void adjustRepaintRect(const RenderObject*, IntRect&);
     53 
     54     virtual bool isControlStyled(const RenderStyle*, const BorderData&,
     55                                  const FillLayer&, const Color& backgroundColor) const;
     56 
     57     virtual Color platformActiveSelectionBackgroundColor() const;
     58     virtual Color platformInactiveSelectionBackgroundColor() const;
     59     virtual Color platformActiveListBoxSelectionBackgroundColor() const;
     60     virtual Color platformActiveListBoxSelectionForegroundColor() const;
     61     virtual Color platformInactiveListBoxSelectionBackgroundColor() const;
     62     virtual Color platformInactiveListBoxSelectionForegroundColor() const;
     63     virtual Color platformFocusRingColor() const;
     64 
     65     virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return SmallScrollbar; }
     66 
     67     virtual void platformColorsDidChange();
     68 
     69     // System fonts.
     70     virtual void systemFont(int cssValueId, FontDescription&) const;
     71 
     72     virtual int minimumMenuListSize(RenderStyle*) const;
     73 
     74     virtual void adjustSliderThumbSize(RenderObject*) const;
     75 
     76     virtual int popupInternalPaddingLeft(RenderStyle*) const;
     77     virtual int popupInternalPaddingRight(RenderStyle*) const;
     78     virtual int popupInternalPaddingTop(RenderStyle*) const;
     79     virtual int popupInternalPaddingBottom(RenderStyle*) const;
     80 
     81     virtual bool paintCapsLockIndicator(RenderObject*, const PaintInfo&, const IntRect&);
     82 
     83 #if ENABLE(METER_TAG)
     84     virtual IntSize meterSizeForBounds(const RenderMeter*, const IntRect&) const;
     85     virtual bool paintMeter(RenderObject*, const PaintInfo&, const IntRect&);
     86     virtual bool supportsMeter(ControlPart) const;
     87 #endif
     88 
     89 #if ENABLE(PROGRESS_TAG)
     90     // Returns the repeat interval of the animation for the progress bar.
     91     virtual double animationRepeatIntervalForProgressBar(RenderProgress*) const;
     92     // Returns the duration of the animation for the progress bar.
     93     virtual double animationDurationForProgressBar(RenderProgress*) const;
     94 #endif
     95 
     96     virtual Color systemColor(int cssValueId) const;
     97     // Controls color values returned from platformFocusRingColor(). systemColor() will be used when false.
     98     virtual bool usesTestModeFocusRingColor() const;
     99     // A view associated to the contained document. Subclasses may not have such a view and return a fake.
    100     virtual NSView* documentViewFor(RenderObject*) const;
    101 protected:
    102     RenderThemeMac();
    103     virtual ~RenderThemeMac();
    104 
    105     virtual bool supportsSelectionForegroundColors() const { return false; }
    106 
    107     virtual bool paintTextField(RenderObject*, const PaintInfo&, const IntRect&);
    108     virtual void adjustTextFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    109 
    110     virtual bool paintTextArea(RenderObject*, const PaintInfo&, const IntRect&);
    111     virtual void adjustTextAreaStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    112 
    113     virtual bool paintMenuList(RenderObject*, const PaintInfo&, const IntRect&);
    114     virtual void adjustMenuListStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    115 
    116     virtual bool paintMenuListButton(RenderObject*, const PaintInfo&, const IntRect&);
    117     virtual void adjustMenuListButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    118 
    119 #if ENABLE(PROGRESS_TAG)
    120     virtual void adjustProgressBarStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    121     virtual bool paintProgressBar(RenderObject*, const PaintInfo&, const IntRect&);
    122 #endif
    123 
    124     virtual bool paintSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);
    125     virtual void adjustSliderTrackStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    126 
    127     virtual bool paintSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);
    128     virtual void adjustSliderThumbStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    129 
    130     virtual bool paintSearchField(RenderObject*, const PaintInfo&, const IntRect&);
    131     virtual void adjustSearchFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    132 
    133     virtual void adjustSearchFieldCancelButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    134     virtual bool paintSearchFieldCancelButton(RenderObject*, const PaintInfo&, const IntRect&);
    135 
    136     virtual void adjustSearchFieldDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    137     virtual bool paintSearchFieldDecoration(RenderObject*, const PaintInfo&, const IntRect&);
    138 
    139     virtual void adjustSearchFieldResultsDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    140     virtual bool paintSearchFieldResultsDecoration(RenderObject*, const PaintInfo&, const IntRect&);
    141 
    142     virtual void adjustSearchFieldResultsButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
    143     virtual bool paintSearchFieldResultsButton(RenderObject*, const PaintInfo&, const IntRect&);
    144 
    145 #if ENABLE(VIDEO)
    146     virtual bool paintMediaFullscreenButton(RenderObject*, const PaintInfo&, const IntRect&);
    147     virtual bool paintMediaPlayButton(RenderObject*, const PaintInfo&, const IntRect&);
    148     virtual bool paintMediaMuteButton(RenderObject*, const PaintInfo&, const IntRect&);
    149     virtual bool paintMediaSeekBackButton(RenderObject*, const PaintInfo&, const IntRect&);
    150     virtual bool paintMediaSeekForwardButton(RenderObject*, const PaintInfo&, const IntRect&);
    151     virtual bool paintMediaSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);
    152     virtual bool paintMediaSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);
    153     virtual bool paintMediaRewindButton(RenderObject*, const PaintInfo&, const IntRect&);
    154     virtual bool paintMediaReturnToRealtimeButton(RenderObject*, const PaintInfo&, const IntRect&);
    155     virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const PaintInfo&, const IntRect&);
    156     virtual bool paintMediaControlsBackground(RenderObject*, const PaintInfo&, const IntRect&);
    157     virtual bool paintMediaCurrentTime(RenderObject*, const PaintInfo&, const IntRect&);
    158     virtual bool paintMediaTimeRemaining(RenderObject*, const PaintInfo&, const IntRect&);
    159     virtual bool paintMediaVolumeSliderContainer(RenderObject*, const PaintInfo&, const IntRect&);
    160     virtual bool paintMediaVolumeSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);
    161     virtual bool paintMediaVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);
    162 
    163     // Media controls
    164     virtual String extraMediaControlsStyleSheet();
    165 #if ENABLE(FULLSCREEN_API)
    166     virtual String extraFullScreenStyleSheet();
    167 #endif
    168 
    169     virtual bool supportsClosedCaptioning() const { return true; }
    170     virtual bool hasOwnDisabledStateHandlingFor(ControlPart) const;
    171     virtual bool usesMediaControlStatusDisplay();
    172     virtual bool usesMediaControlVolumeSlider() const;
    173     virtual void adjustMediaSliderThumbSize(RenderObject*) const;
    174     virtual IntPoint volumeSliderOffsetFromMuteButton(RenderBox*, const IntSize&) const;
    175 #endif
    176 
    177     virtual bool shouldShowPlaceholderWhenFocused() const;
    178 
    179 private:
    180 
    181     IntRect inflateRect(const IntRect&, const IntSize&, const int* margins, float zoomLevel = 1.0f) const;
    182 
    183     FloatRect convertToPaintingRect(const RenderObject* inputRenderer, const RenderObject* partRenderer, const FloatRect& inputRect, const IntRect& r) const;
    184 
    185     // Get the control size based off the font.  Used by some of the controls (like buttons).
    186     NSControlSize controlSizeForFont(RenderStyle*) const;
    187     NSControlSize controlSizeForSystemFont(RenderStyle*) const;
    188     void setControlSize(NSCell*, const IntSize* sizes, const IntSize& minSize, float zoomLevel = 1.0f);
    189     void setSizeFromFont(RenderStyle*, const IntSize* sizes) const;
    190     IntSize sizeForFont(RenderStyle*, const IntSize* sizes) const;
    191     IntSize sizeForSystemFont(RenderStyle*, const IntSize* sizes) const;
    192     void setFontFromControlSize(CSSStyleSelector*, RenderStyle*, NSControlSize) const;
    193 
    194     void updateCheckedState(NSCell*, const RenderObject*);
    195     void updateEnabledState(NSCell*, const RenderObject*);
    196     void updateFocusedState(NSCell*, const RenderObject*);
    197     void updatePressedState(NSCell*, const RenderObject*);
    198     // An optional hook for subclasses to update the control tint of NSCell.
    199     virtual void updateActiveState(NSCell*, const RenderObject*) {}
    200 
    201     // Helpers for adjusting appearance and for painting
    202 
    203     void setPopupButtonCellState(const RenderObject*, const IntRect&);
    204     const IntSize* popupButtonSizes() const;
    205     const int* popupButtonMargins() const;
    206     const int* popupButtonPadding(NSControlSize) const;
    207     void paintMenuListButtonGradients(RenderObject*, const PaintInfo&, const IntRect&);
    208     const IntSize* menuListSizes() const;
    209 
    210     const IntSize* searchFieldSizes() const;
    211     const IntSize* cancelButtonSizes() const;
    212     const IntSize* resultsButtonSizes() const;
    213     void setSearchCellState(RenderObject*, const IntRect&);
    214     void setSearchFieldSize(RenderStyle*) const;
    215 
    216     NSPopUpButtonCell* popupButton() const;
    217     NSSearchFieldCell* search() const;
    218     NSMenu* searchMenuTemplate() const;
    219     NSSliderCell* sliderThumbHorizontal() const;
    220     NSSliderCell* sliderThumbVertical() const;
    221 
    222 #if ENABLE(METER_TAG)
    223     NSLevelIndicatorStyle levelIndicatorStyleFor(ControlPart) const;
    224     NSLevelIndicatorCell* levelIndicatorFor(const RenderMeter*) const;
    225 #endif
    226 
    227 private:
    228     mutable RetainPtr<NSPopUpButtonCell> m_popupButton;
    229     mutable RetainPtr<NSSearchFieldCell> m_search;
    230     mutable RetainPtr<NSMenu> m_searchMenuTemplate;
    231     mutable RetainPtr<NSSliderCell> m_sliderThumbHorizontal;
    232     mutable RetainPtr<NSSliderCell> m_sliderThumbVertical;
    233     mutable RetainPtr<NSLevelIndicatorCell> m_levelIndicator;
    234 
    235     bool m_isSliderThumbHorizontalPressed;
    236     bool m_isSliderThumbVerticalPressed;
    237 
    238     mutable HashMap<int, RGBA32> m_systemColorCache;
    239 
    240     RetainPtr<WebCoreRenderThemeNotificationObserver> m_notificationObserver;
    241 };
    242 
    243 } // namespace WebCore
    244 
    245 #endif // RenderThemeMac_h
    246