/*

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

 *

 * 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 "CString.h"

#include "Document.h"

#include "Frame.h"

#include "FrameView.h"

#include "Node.h"

#include <tchar.h>

#include <windows.h>

namespace WebCore {

ContextMenu::ContextMenu(const HitTestResult& result)

    : m_hitTestResult(result)

    , m_platformDescription(0)

{

    setPlatformDescription(::CreatePopupMenu());

}

ContextMenu::ContextMenu(const HitTestResult& result, const PlatformMenuDescription menu)

    : m_hitTestResult(result)

    , m_platformDescription(0)

{

    setPlatformDescription(menu);

}

ContextMenu::~ContextMenu()

{

    if (m_platformDescription)

        ::DestroyMenu(m_platformDescription);

}

unsigned ContextMenu::itemCount() const

{

    if (!m_platformDescription)

        return 0;

    return ::GetMenuItemCount(m_platformDescription);

}

void ContextMenu::insertItem(unsigned int position, ContextMenuItem& item)

{

    if (!m_platformDescription)

        return;

    checkOrEnableIfNeeded(item);

    ::InsertMenuItem(m_platformDescription, position, TRUE, item.releasePlatformDescription());

}

void ContextMenu::appendItem(ContextMenuItem& item)

{

    insertItem(itemCount(), item);

}

static ContextMenuItem* contextMenuItemByIdOrPosition(HMENU menu, unsigned id, BOOL byPosition)

{

    if (!menu)

        return 0;

    LPMENUITEMINFO info = (LPMENUITEMINFO)malloc(sizeof(MENUITEMINFO));

    if (!info)

        return 0;

    memset(info, 0, sizeof(MENUITEMINFO));

    info->cbSize = sizeof(MENUITEMINFO);

    info->fMask = MIIM_FTYPE | MIIM_ID | MIIM_STRING;

    if (!::GetMenuItemInfo(menu, id, byPosition, info)) {

        free(info);

        return 0;

    }

    UINT type = info->fType & ~(MFT_MENUBARBREAK | MFT_MENUBREAK | MFT_OWNERDRAW | MFT_RADIOCHECK | MFT_RIGHTORDER | MFT_RIGHTJUSTIFY);

    if (type == MFT_STRING) {

        LPTSTR buffer = (LPTSTR)malloc(++info->cch * sizeof(TCHAR));

        if (!buffer) {

            free(info);

            return 0;

        }

        info->dwTypeData = buffer;

        ::GetMenuItemInfo(menu, id, byPosition, info);

    }

    return new ContextMenuItem(info);

}

ContextMenuItem* ContextMenu::itemWithAction(unsigned action)

{

    return contextMenuItemByIdOrPosition(m_platformDescription, action, FALSE);

}

ContextMenuItem* ContextMenu::itemAtIndex(unsigned index, const PlatformMenuDescription platformDescription)

{

    return contextMenuItemByIdOrPosition(platformDescription, index, TRUE);

}

void ContextMenu::setPlatformDescription(HMENU menu)

{

    if (menu == m_platformDescription)

        return;

    if (m_platformDescription)

        ::DestroyMenu(m_platformDescription);

    m_platformDescription = menu;

    if (!m_platformDescription)

        return;

    MENUINFO menuInfo = {0};

    menuInfo.cbSize = sizeof(MENUINFO);

    menuInfo.fMask = MIM_STYLE;

    ::GetMenuInfo(m_platformDescription, &menuInfo);

    menuInfo.fMask = MIM_STYLE;

    menuInfo.dwStyle |= MNS_NOTIFYBYPOS;

    ::SetMenuInfo(m_platformDescription, &menuInfo);

}

HMENU ContextMenu::platformDescription() const

{

    return m_platformDescription;

}

HMENU ContextMenu::releasePlatformDescription()

{

    HMENU description = m_platformDescription;

    m_platformDescription = 0;

    return description;

}

}