/**
 * @file llurlaction.h
 * @author Martin Reddy
 * @brief A set of actions that can performed on Urls
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_LLURLACTION_H
#define LL_LLURLACTION_H

#include <string>
#include <boost/function.hpp>

///
/// The LLUrlAction class provides a number of static functions that
/// let you open Urls in web browsers, execute SLURLs, and copy Urls
/// to the clipboard. Many of these functions are not available at
/// the llui level, and must be supplied via a set of callbacks.
///
/// N.B. The action functions specifically do not use const ref
/// strings so that a url parameter can be used into a boost::bind()
/// call under situations when that input string is deallocated before
/// the callback is executed.
///
class LLUrlAction
{
public:
    LLUrlAction();

    /// load a Url in the user's preferred web browser
    static void openURL(std::string url);

    /// load a Url in the internal Second Life web browser
    static void openURLInternal(std::string url);

    /// load a Url in the operating system's default web browser
    static void openURLExternal(std::string url);

    /// execute the given secondlife: SLURL
    static bool executeSLURL(std::string url, bool trusted_content = true);

    /// if the Url specifies an SL location, teleport there
    static void teleportToLocation(std::string url);

    /// if the Url specifies an SL location, show it on a map
    static void showLocationOnMap(std::string url);

    /// perform the appropriate action for left-clicking on a Url
    static void clickAction(std::string url, bool trusted_content);

    /// copy the label for a Url to the clipboard
    static void copyLabelToClipboard(std::string url);

    /// copy a Url to the clipboard
    static void copyURLToClipboard(std::string url);

    /// if the Url specifies an SL command in the form like 'app/{cmd}/{id}/*', show its profile
    static void showProfile(std::string url);
    static std::string getUserID(std::string url);
    static std::string getObjectName(std::string url);
    static std::string getObjectId(std::string url);
    static void sendIM(std::string url);
    static void addFriend(std::string url);
    static void removeFriend(std::string url);
    static void reportAbuse(std::string url);
    static void blockObject(std::string url);
    static void unblockObject(std::string url);

    /// specify the callbacks to enable this class's functionality
    typedef boost::function<void (const std::string&)> url_callback_t;
    typedef boost::function<bool(const std::string& url, bool trusted_content)> execute_url_callback_t;

    static void setOpenURLCallback(url_callback_t cb);
    static void setOpenURLInternalCallback(url_callback_t cb);
    static void setOpenURLExternalCallback(url_callback_t cb);
    static void setExecuteSLURLCallback(execute_url_callback_t cb);

private:
    // callbacks for operations we can perform on Urls
    static url_callback_t sOpenURLCallback;
    static url_callback_t sOpenURLInternalCallback;
    static url_callback_t sOpenURLExternalCallback;

    static execute_url_callback_t sExecuteSLURLCallback;
};

#endif