/*

 * This file is part of the theme implementation for form controls in WebCore.

 *

 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Computer, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#ifndef RenderThemeMac_h

#define RenderThemeMac_h

#import "RenderTheme.h"

#import <wtf/HashMap.h>

#import <wtf/RetainPtr.h>

class RenderProgress;

#ifdef __OBJC__

@class WebCoreRenderThemeNotificationObserver;

#else

class WebCoreRenderThemeNotificationObserver;

#endif

namespace WebCore {

class RenderStyle;

class RenderThemeMac : public RenderTheme {

public:

    static PassRefPtr<RenderTheme> create();

    // A method asking if the control changes its tint when the window has focus or not.

    virtual bool controlSupportsTints(const RenderObject*) const;

    // A general method asking if any control tinting is supported at all.

    virtual bool supportsControlTints() const { return true; }

    virtual void adjustRepaintRect(const RenderObject*, IntRect&);

    virtual bool isControlStyled(const RenderStyle*, const BorderData&,

                                 const FillLayer&, const Color& backgroundColor) const;

    virtual Color platformActiveSelectionBackgroundColor() const;

    virtual Color platformInactiveSelectionBackgroundColor() const;

    virtual Color platformActiveListBoxSelectionBackgroundColor() const;

    virtual Color platformActiveListBoxSelectionForegroundColor() const;

    virtual Color platformInactiveListBoxSelectionBackgroundColor() const;

    virtual Color platformInactiveListBoxSelectionForegroundColor() const;

    virtual Color platformFocusRingColor() const;

    virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return SmallScrollbar; }

    virtual void platformColorsDidChange();

    // System fonts.

    virtual void systemFont(int cssValueId, FontDescription&) const;

    virtual int minimumMenuListSize(RenderStyle*) const;

    virtual void adjustSliderThumbSize(RenderObject*) const;

    virtual int popupInternalPaddingLeft(RenderStyle*) const;

    virtual int popupInternalPaddingRight(RenderStyle*) const;

    virtual int popupInternalPaddingTop(RenderStyle*) const;

    virtual int popupInternalPaddingBottom(RenderStyle*) const;

    virtual bool paintCapsLockIndicator(RenderObject*, const PaintInfo&, const IntRect&);

#if ENABLE(METER_TAG)

    virtual IntSize meterSizeForBounds(const RenderMeter*, const IntRect&) const;

    virtual bool paintMeter(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool supportsMeter(ControlPart, bool isHorizontal) const;

#endif

#if ENABLE(PROGRESS_TAG)

    // Returns the repeat interval of the animation for the progress bar.

    virtual double animationRepeatIntervalForProgressBar(RenderProgress*) const;

    // Returns the duration of the animation for the progress bar.

    virtual double animationDurationForProgressBar(RenderProgress*) const;

#endif

    virtual Color systemColor(int cssValueId) const;

    // Controls color values returned from platformFocusRingColor(). systemColor() will be used when false.

    virtual bool usesTestModeFocusRingColor() const;

    // A view associated to the contained document. Subclasses may not have such a view and return a fake.

    virtual NSView* documentViewFor(RenderObject*) const;

protected:

    RenderThemeMac();

    virtual ~RenderThemeMac();

    virtual bool supportsSelectionForegroundColors() const { return false; }

    virtual bool paintTextField(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustTextFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintTextArea(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustTextAreaStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintMenuList(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustMenuListStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintMenuListButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustMenuListButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

#if ENABLE(PROGRESS_TAG)

    virtual void adjustProgressBarStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintProgressBar(RenderObject*, const PaintInfo&, const IntRect&);

#endif

    virtual bool paintSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustSliderTrackStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustSliderThumbStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintSearchField(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustSearchFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual void adjustSearchFieldCancelButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintSearchFieldCancelButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustSearchFieldDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintSearchFieldDecoration(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustSearchFieldResultsDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintSearchFieldResultsDecoration(RenderObject*, const PaintInfo&, const IntRect&);

    virtual void adjustSearchFieldResultsButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;

    virtual bool paintSearchFieldResultsButton(RenderObject*, const PaintInfo&, const IntRect&);

#if ENABLE(VIDEO)

    virtual bool paintMediaFullscreenButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaPlayButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaMuteButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaSeekBackButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaSeekForwardButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaRewindButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaReturnToRealtimeButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaControlsBackground(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaCurrentTime(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaTimeRemaining(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaVolumeSliderContainer(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaVolumeSliderTrack(RenderObject*, const PaintInfo&, const IntRect&);

    virtual bool paintMediaVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&);

    // Media controls

    virtual String extraMediaControlsStyleSheet();

    virtual bool shouldRenderMediaControlPart(ControlPart, Element*);

    virtual void adjustMediaSliderThumbSize(RenderObject*) const;

    virtual IntPoint volumeSliderOffsetFromMuteButton(Node*, const IntSize&) const;

#endif

private:

    IntRect inflateRect(const IntRect&, const IntSize&, const int* margins, float zoomLevel = 1.0f) const;

    FloatRect convertToPaintingRect(const RenderObject* inputRenderer, const RenderObject* partRenderer, const FloatRect& inputRect, const IntRect& r) const;

    // Get the control size based off the font.  Used by some of the controls (like buttons).

    NSControlSize controlSizeForFont(RenderStyle*) const;

    NSControlSize controlSizeForSystemFont(RenderStyle*) const;

    void setControlSize(NSCell*, const IntSize* sizes, const IntSize& minSize, float zoomLevel = 1.0f);

    void setSizeFromFont(RenderStyle*, const IntSize* sizes) const;

    IntSize sizeForFont(RenderStyle*, const IntSize* sizes) const;

    IntSize sizeForSystemFont(RenderStyle*, const IntSize* sizes) const;

    void setFontFromControlSize(CSSStyleSelector*, RenderStyle*, NSControlSize) const;

    void updateCheckedState(NSCell*, const RenderObject*);

    void updateEnabledState(NSCell*, const RenderObject*);

    void updateFocusedState(NSCell*, const RenderObject*);

    void updatePressedState(NSCell*, const RenderObject*);

    // An optional hook for subclasses to update the control tint of NSCell.

    virtual void updateActiveState(NSCell*, const RenderObject*) {}

    // Helpers for adjusting appearance and for painting

    void setPopupButtonCellState(const RenderObject*, const IntRect&);

    const IntSize* popupButtonSizes() const;

    const int* popupButtonMargins() const;

    const int* popupButtonPadding(NSControlSize) const;

    void paintMenuListButtonGradients(RenderObject*, const PaintInfo&, const IntRect&);

    const IntSize* menuListSizes() const;

    const IntSize* searchFieldSizes() const;

    const IntSize* cancelButtonSizes() const;

    const IntSize* resultsButtonSizes() const;

    void setSearchCellState(RenderObject*, const IntRect&);

    void setSearchFieldSize(RenderStyle*) const;

    NSPopUpButtonCell* popupButton() const;

    NSSearchFieldCell* search() const;

    NSMenu* searchMenuTemplate() const;

    NSSliderCell* sliderThumbHorizontal() const;

    NSSliderCell* sliderThumbVertical() const;

#if ENABLE(METER_TAG)

    NSLevelIndicatorStyle levelIndicatorStyleFor(ControlPart) const;

    NSLevelIndicatorCell* levelIndicatorFor(const RenderMeter*) const;

#endif

private:

    mutable RetainPtr<NSPopUpButtonCell> m_popupButton;

    mutable RetainPtr<NSSearchFieldCell> m_search;

    mutable RetainPtr<NSMenu> m_searchMenuTemplate;

    mutable RetainPtr<NSSliderCell> m_sliderThumbHorizontal;

    mutable RetainPtr<NSSliderCell> m_sliderThumbVertical;

    mutable RetainPtr<NSLevelIndicatorCell> m_levelIndicator;

    bool m_isSliderThumbHorizontalPressed;

    bool m_isSliderThumbVerticalPressed;

    mutable HashMap<int, RGBA32> m_systemColorCache;

    RetainPtr<WebCoreRenderThemeNotificationObserver> m_notificationObserver;

};

} // namespace WebCore

#endif // RenderThemeMac_h