/*

 * This file is part of the select element renderer in WebCore.

 *

 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

 * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.

 *

 * 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 RenderMenuList_h

#define RenderMenuList_h

#include "PopupMenuClient.h"

#include "RenderFlexibleBox.h"

#if PLATFORM(MAC)

#define POPUP_MENU_PULLS_DOWN 0

#else

#define POPUP_MENU_PULLS_DOWN 1

#endif

namespace WebCore {

class PopupMenu;

class RenderText;

#if ENABLE(NO_LISTBOX_RENDERING)

class RenderMenuList : public RenderFlexibleBox, private ListPopupMenuClient {

#else

class RenderMenuList : public RenderFlexibleBox, private PopupMenuClient {

#endif

public:

    RenderMenuList(Element*);

    virtual ~RenderMenuList();

public:

    bool popupIsVisible() const { return m_popupIsVisible; }

    void showPopup();

    void hidePopup();

    void setOptionsChanged(bool changed) { m_optionsChanged = changed; }

    void didSetSelectedIndex();

    String text() const;

private:

    virtual bool isMenuList() const { return true; }

    virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0);

    virtual void removeChild(RenderObject*);

    virtual bool createsAnonymousWrapper() const { return true; }

    virtual bool canHaveChildren() const { return false; }

    virtual void updateFromElement();

    virtual bool hasControlClip() const { return true; }

    virtual IntRect controlClipRect(int tx, int ty) const;

    virtual const char* renderName() const { return "RenderMenuList"; }

    virtual void calcPrefWidths();

    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);

    virtual bool requiresForcedStyleRecalcPropagation() const { return true; }

    // PopupMenuClient methods

    virtual String itemText(unsigned listIndex) const;

    virtual String itemLabel(unsigned listIndex) const;

    virtual String itemToolTip(unsigned listIndex) const;

    virtual String itemAccessibilityText(unsigned listIndex) const;

    virtual bool itemIsEnabled(unsigned listIndex) const;

    virtual PopupMenuStyle itemStyle(unsigned listIndex) const;

    virtual PopupMenuStyle menuStyle() const;

    virtual int clientInsetLeft() const;

    virtual int clientInsetRight() const;

    virtual int clientPaddingLeft() const;

    virtual int clientPaddingRight() const;

    virtual int listSize() const;

    virtual int selectedIndex() const;

    virtual void popupDidHide();

    virtual bool itemIsSeparator(unsigned listIndex) const;

    virtual bool itemIsLabel(unsigned listIndex) const;

    virtual bool itemIsSelected(unsigned listIndex) const;

    virtual void setTextFromItem(unsigned listIndex);

    virtual bool valueShouldChangeOnHotTrack() const { return true; }

    virtual bool shouldPopOver() const { return !POPUP_MENU_PULLS_DOWN; }

    virtual void valueChanged(unsigned listIndex, bool fireOnChange = true);

    virtual void selectionChanged(unsigned, bool) {}

    virtual void selectionCleared() {}

    virtual FontSelector* fontSelector() const;

    virtual HostWindow* hostWindow() const;

    virtual PassRefPtr<Scrollbar> createScrollbar(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize);

#if ENABLE(NO_LISTBOX_RENDERING)

    virtual void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true);

    virtual bool multiple();

#endif

    virtual bool hasLineIfEmpty() const { return true; }

    Color itemBackgroundColor(unsigned listIndex) const;

    void createInnerBlock();

    void adjustInnerStyle();

    void setText(const String&);

    void setTextFromOption(int optionIndex);

    void updateOptionsWidth();

    RenderText* m_buttonText;

    RenderBlock* m_innerBlock;

    bool m_optionsChanged;

    int m_optionsWidth;

    int m_lastSelectedIndex;

    RefPtr<PopupMenu> m_popup;

    bool m_popupIsVisible;

};

inline RenderMenuList* toRenderMenuList(RenderObject* object)

{ 

    ASSERT(!object || object->isMenuList());

    return static_cast<RenderMenuList*>(object);

}

// This will catch anyone doing an unnecessary cast.

void toRenderMenuList(const RenderMenuList*);

}

#endif