/*
 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
 * Copyright (C) 2007 Ryan Leavengood <leavengood@gmail.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */

#include "config.h"
#include "ContextMenu.h"

#include "ContextMenuItem.h"
#include "ContextMenuController.h"
#include "Frame.h"
#include "FrameView.h"
#include "Document.h"

#include <wtf/Assertions.h>

#include <Looper.h>
#include <Menu.h>
#include <Message.h>


namespace WebCore {

// FIXME: This class isn't used yet
class ContextMenuReceiver : public BLooper
{
public:
    ContextMenuReceiver(ContextMenu* menu)
        : BLooper("context_menu_receiver")
        , m_menu(menu)
    {
        m_result = -1;
    }

    void HandleMessage(BMessage* msg)
    {
        m_result = msg->what;
        if (m_result != -1) {
            BMenuItem* item = m_menu->platformDescription()->FindItem(m_result);
            if (!item) {
                printf("Error: Context menu item with code %i not found!\n", m_result);
                return;
            }
            ContextMenuItem cmItem(item);
            m_menu->controller()->contextMenuItemSelected(&cmItem);
            cmItem.releasePlatformDescription();
        }
    }

    int Result()
    {
        return m_result;
    }

private:
    ContextMenu* m_menu;
    int m_result;
};

ContextMenu::ContextMenu(const HitTestResult& result)
    : m_hitTestResult(result)
    , m_platformDescription(NULL)
{
    /* Get position */
    if (result.innerNode() && result.innerNode()->document()) {
        BView* view = result.innerNode()->document()->frame()->view()->platformWidget();
        int child = 0;
        while (view->ChildAt(child)) {
            if (view->ChildAt(child)->Name() == "scroll_view_canvas") {
                m_point = view->ChildAt(child)->ConvertToScreen(BPoint(result.point().x(), result.point().y()));
                break;
            }
            child++;
        }
    }
    m_platformDescription = new BMenu("context_menu");
}

ContextMenu::~ContextMenu()
{
    delete m_platformDescription;
}

void ContextMenu::appendItem(ContextMenuItem& item)
{
    checkOrEnableIfNeeded(item);

    BMenuItem* bItem = item.releasePlatformDescription();
    if (bItem)
        m_platformDescription->AddItem(bItem);
}

unsigned ContextMenu::itemCount() const
{
    return m_platformDescription->CountItems();
}

void ContextMenu::insertItem(unsigned position, ContextMenuItem& item)
{
    checkOrEnableIfNeeded(item);

    BMenuItem* bItem = item.releasePlatformDescription();
    if (bItem)
        m_platformDescription->AddItem(bItem, position);
}

PlatformMenuDescription ContextMenu::platformDescription() const
{
    return m_platformDescription;
}

void ContextMenu::setPlatformDescription(PlatformMenuDescription menu)
{
    if (static_cast<BMenu*>(menu) == m_platformDescription)
        return;

    delete m_platformDescription;
    m_platformDescription = static_cast<BMenu*>(menu);
}

} // namespace WebCore