/*
 * Copyright (c) 2011, Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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 */

#ifndef PopupContainer_h
#define PopupContainer_h

#include "FramelessScrollView.h"
#include "PopupListBox.h"
#include "PopupMenuStyle.h"

namespace WebCore {

class ChromeClientChromium;
class FrameView;
class PopupMenuClient;

class PopupContainer : public FramelessScrollView {
public:
    enum PopupType {
        Select, // HTML select popup.
        Suggestion, // Autocomplete/autofill popup.
    };

    static PassRefPtr<PopupContainer> create(PopupMenuClient*, PopupType,
                                             const PopupContainerSettings&);

    // Whether a key event should be sent to this popup.
    virtual bool isInterestedInEventForKey(int keyCode);

    // FramelessScrollView
    virtual void paint(GraphicsContext*, const IntRect&);
    virtual void hide();
    virtual bool handleMouseDownEvent(const PlatformMouseEvent&);
    virtual bool handleMouseMoveEvent(const PlatformMouseEvent&);
    virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&);
    virtual bool handleWheelEvent(const PlatformWheelEvent&);
    virtual bool handleKeyEvent(const PlatformKeyboardEvent&);
#if ENABLE(TOUCH_EVENTS)
    virtual bool handleTouchEvent(const PlatformTouchEvent&);
#endif
#if ENABLE(GESTURE_RECOGNIZER)
    virtual bool handleGestureEvent(const PlatformGestureEvent&);
#endif

    // PopupContainer methods

    // Show the popup
    void showPopup(FrameView*);

    // Show the popup in the specified rect for the specified frame.
    // Note: this code was somehow arbitrarily factored-out of the Popup class
    // so WebViewImpl can create a PopupContainer. This method is used for
    // displaying auto complete popup menus on Mac Chromium, and for all
    // popups on other platforms.
    void showInRect(const IntRect&, FrameView*, int index);

    // Hides the popup.
    void hidePopup();

    // The popup was hidden.
    void notifyPopupHidden();

    // Compute size of widget and children. Return right offset for the popup right alignment.
    int layoutAndGetRTLOffset();

    PopupListBox* listBox() const { return m_listBox.get(); }

    bool isRTL() const;

    // Gets the index of the item that the user is currently moused-over or
    // has selected with the keyboard up/down arrows.
    int selectedIndex() const;

    // Refresh the popup values from the PopupMenuClient.
    void refresh(const IntRect& targetControlRect);

    // The menu per-item data.
    const WTF::Vector<PopupItem*>& popupData() const;

    // The height of a row in the menu.
    int menuItemHeight() const;

    // The size of the font being used.
    int menuItemFontSize() const;

    // The style of the menu being used.
    PopupMenuStyle menuStyle() const;

    PopupType popupType() const { return m_popupType; }

    // While hovering popup menu window, we want to show tool tip message.
    String getSelectedItemToolTip();

private:
    friend class WTF::RefCounted<PopupContainer>;

    PopupContainer(PopupMenuClient*, PopupType, const PopupContainerSettings&);
    ~PopupContainer();

    // Paint the border.
    void paintBorder(GraphicsContext*, const IntRect&);

    // Layout and calculate popup widget size and location and returns it as IntRect.
    IntRect layoutAndCalculateWidgetRect(int targetControlHeight, const IntPoint& popupInitialCoordinate);

    // Returns the ChromeClient of the page this popup is associated with.
    ChromeClientChromium* chromeClientChromium();

    RefPtr<PopupListBox> m_listBox;
    RefPtr<FrameView> m_frameView;

    PopupContainerSettings m_settings;
    PopupType m_popupType;
    IntRect m_originalFrameRect;
    // Whether the popup is currently open.
    bool m_popupOpen;
};

} // namespace WebCore

#endif
