/****************************************************************************

**

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

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtGui module of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

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** $QT_END_LICENSE$

**

****************************************************************************/

#include <qsettings.h>

#include <qdir.h>

#include <qlibrary.h>

#include <qurl.h>

#include <qstringlist.h>

#include <qprocess.h>

#include <qtemporaryfile.h>

#include <qcoreapplication.h>

#include <qt_windows.h>

#include <shlobj.h>

#if !defined(Q_OS_WINCE)

#  include <intshcut.h>

#else

#  include <qguifunctions_wince.h>

#  if !defined(STANDARDSHELL_UI_MODEL)

#    include <winx.h>

#  endif

#endif

#if defined(Q_CC_MINGW) && !defined(CSIDL_MYMUSIC)

#define CSIDL_MYMUSIC	13

#define CSIDL_MYVIDEO	14

#endif

#ifndef QT_NO_DESKTOPSERVICES

QT_BEGIN_NAMESPACE

static bool openDocument(const QUrl &file)

{

    if (!file.isValid())

        return false;

    QString filePath = file.toLocalFile();

    if (filePath.isEmpty())

        filePath = file.toString();

    quintptr returnValue = (quintptr)ShellExecute(0, 0, (wchar_t*)filePath.utf16(), 0, 0, SW_SHOWNORMAL);

    return (returnValue > 32); //ShellExecute returns a value greater than 32 if successful

}

static QString expandEnvStrings(const QString &command)

{

#if defined(Q_OS_WINCE)

    return command;

#else

    wchar_t buffer[MAX_PATH];

    if (ExpandEnvironmentStrings((wchar_t*)command.utf16(), buffer, MAX_PATH))

        return QString::fromWCharArray(buffer);

    else

        return command;

#endif

}

static bool launchWebBrowser(const QUrl &url)

{

    if (url.scheme() == QLatin1String("mailto")) {

        //Retrieve the commandline for the default mail client

        //the default key used below is the command line for the mailto: shell command

        DWORD  bufferSize = 2 * MAX_PATH;

        long  returnValue =  -1;

        QString command;

        HKEY handle;

        LONG res;

        wchar_t keyValue[2 * MAX_PATH] = {0};

        QString keyName(QLatin1String("mailto"));

        //Check if user has set preference, otherwise use default.

        res = RegOpenKeyExW(HKEY_CURRENT_USER,

                            L"Software\\Microsoft\\Windows\\Shell\\Associations\\UrlAssociations\\mailto\\UserChoice",

                            0, KEY_READ, &handle);

        if (res == ERROR_SUCCESS) {

            returnValue = RegQueryValueEx(handle, L"Progid", 0, 0, reinterpret_cast<unsigned char*>(keyValue), &bufferSize);

            if (!returnValue)

                keyName = QString::fromUtf16((const ushort*)keyValue);

            RegCloseKey(handle);

        }

        keyName += QLatin1String("\\Shell\\Open\\Command");

        res = RegOpenKeyExW(HKEY_CLASSES_ROOT, (const wchar_t*)keyName.utf16(), 0, KEY_READ, &handle);

        if (res != ERROR_SUCCESS)

            return false;

        bufferSize = 2 * MAX_PATH;

        returnValue = RegQueryValueExW(handle, L"", 0, 0, reinterpret_cast<unsigned char*>(keyValue), &bufferSize);

        if (!returnValue)

            command = QString::fromRawData((QChar*)keyValue, bufferSize);

        RegCloseKey(handle);

        if (returnValue)

            return false;

        command = expandEnvStrings(command);

        command = command.trimmed();

        //Make sure the path for the process is in quotes

        int index = -1 ;

        if (command[0]!= QLatin1Char('\"')) {

            index = command.indexOf(QLatin1String(".exe "), 0, Qt::CaseInsensitive);

            command.insert(index+4, QLatin1Char('\"'));

            command.insert(0, QLatin1Char('\"'));

        }

        //pass the url as the parameter

        index =  command.lastIndexOf(QLatin1String("%1"));

        if (index != -1){

            command.replace(index, 2, url.toString());

        }

        //start the process

        PROCESS_INFORMATION pi;

        ZeroMemory(&pi, sizeof(pi));

        STARTUPINFO si;

        ZeroMemory(&si, sizeof(si));

        si.cb = sizeof(si);

        returnValue = CreateProcess(NULL, (wchar_t*)command.utf16(), NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);

        if (!returnValue)

            return false;

        CloseHandle(pi.hProcess);

        CloseHandle(pi.hThread);

        return true;

    }

    if (!url.isValid())

        return false;

    if (url.scheme().isEmpty())

        return openDocument(url);

    quintptr returnValue = (quintptr)ShellExecute(0, 0, (wchar_t *)QString::fromUtf8(url.toEncoded().constData()).utf16(),

                                                  0, 0, SW_SHOWNORMAL);

    return (returnValue > 32);

}

QString QDesktopServices::storageLocation(StandardLocation type)

{

    QString result;

#ifndef Q_OS_WINCE

        QLibrary library(QLatin1String("shell32"));

#else

        QLibrary library(QLatin1String("coredll"));

#endif // Q_OS_WINCE

    typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, LPWSTR, int, BOOL);

    static GetSpecialFolderPath SHGetSpecialFolderPath =

            (GetSpecialFolderPath)library.resolve("SHGetSpecialFolderPathW");

    if (!SHGetSpecialFolderPath)

        return QString();

    wchar_t path[MAX_PATH];

    switch (type) {

    case DataLocation:

#if defined Q_WS_WINCE

        if (SHGetSpecialFolderPath(0, path, CSIDL_APPDATA, FALSE))

#else

        if (SHGetSpecialFolderPath(0, path, CSIDL_LOCAL_APPDATA, FALSE))

#endif

            result = QString::fromWCharArray(path);

        if (!QCoreApplication::organizationName().isEmpty())

            result = result + QLatin1String("\\") + QCoreApplication::organizationName();

        if (!QCoreApplication::applicationName().isEmpty())

            result = result + QLatin1String("\\") + QCoreApplication::applicationName();

        break;

    case DesktopLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_DESKTOPDIRECTORY, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case DocumentsLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_PERSONAL, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case FontsLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_FONTS, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case ApplicationsLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_PROGRAMS, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case MusicLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_MYMUSIC, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case MoviesLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_MYVIDEO, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case PicturesLocation:

        if (SHGetSpecialFolderPath(0, path, CSIDL_MYPICTURES, FALSE))

            result = QString::fromWCharArray(path);

        break;

    case CacheLocation:

        // Although Microsoft has a Cache key it is a pointer to IE's cache, not a cache

        // location for everyone.  Most applications seem to be using a

        // cache directory located in their AppData directory

        return storageLocation(DataLocation) + QLatin1String("\\cache");

    case QDesktopServices::HomeLocation:

        return QDir::homePath(); break;

    case QDesktopServices::TempLocation:

        return QDir::tempPath(); break;

    default:

        break;

    }

    return result;

}

QString QDesktopServices::displayName(StandardLocation type)

{

    Q_UNUSED(type);

    return QString();

}

QT_END_NAMESPACE

#endif // QT_NO_DESKTOPSERVICES