// Hive Colony Framework
// Copyright (C) 2008 Hive Solutions Lda.
//
// This file is part of Hive Colony Framework.
//
// Hive Colony Framework is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Hive Colony Framework 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Hive Colony Framework. If not, see <http://www.gnu.org/licenses/>.

// __author__    = João Magalhães <joamag@hive.pt>
// __version__   = 1.0.0
// __revision__  = $LastChangedRevision: 195 $
// __date__      = $LastChangedDate: 2008-10-26 20:43:25 +0000 (dom, 26 Out 2008) $
// __copyright__ = Copyright (c) 2008 Hive Solutions Lda.
// __license__   = GNU General Public License (GPL), Version 3

var BrowserDetect = BrowserDetect || {};

BrowserDetect = function() {
    BrowserDetect.browser = BrowserDetect.searchString(BrowserDetect.DATA_BROWSER)
            || "Unknown browser";
    BrowserDetect.version = BrowserDetect.searchVersion(navigator.userAgent)
            || BrowserDetect.searchVersion(navigator.appVersion)
            || "Unknown version";
    BrowserDetect.os = BrowserDetect.searchString(BrowserDetect.DATA_OS)
            || "Unknown OS";
}

BrowserDetect.searchString = function(data) {
    for (var index = 0; index < data.length; index++) {
        var dataString = data[index].string;
        var dataProp = data[index].prop;
        BrowserDetect.versionSearchString = data[index].versionSearch
                || data[index].identity;
        if (dataString) {
            if (dataString.indexOf(data[index].subString) != -1) {
                return data[index].identity;
            }
        } else if (dataProp) {
            return data[index].identity;
        }
    }
}

BrowserDetect.searchVersion = function(dataString) {
    // tries to search for the version search string
    var index = dataString.indexOf(BrowserDetect.versionSearchString);

    // in case the version search string is not found
    if (index == -1) {
        // returns immediately
        return;
    }

    return parseFloat(dataString.substring(index
            + BrowserDetect.versionSearchString.length + 1));
}

BrowserDetect.DATA_BROWSER = [{
            string : navigator.userAgent,
            subString : "Chrome",
            identity : "Chrome"
        }, {
            string : navigator.userAgent,
            subString : "OmniWeb",
            versionSearch : "OmniWeb/",
            identity : "OmniWeb"
        }, {
            string : navigator.vendor,
            subString : "Apple",
            identity : "Safari",
            versionSearch : "Version"
        }, {
            prop : window.opera,
            identity : "Opera"
        }, {
            string : navigator.vendor,
            subString : "iCab",
            identity : "iCab"
        }, {
            string : navigator.vendor,
            subString : "KDE",
            identity : "Konqueror"
        }, {
            string : navigator.userAgent,
            subString : "Firefox",
            identity : "Firefox"
        }, {
            string : navigator.vendor,
            subString : "Camino",
            identity : "Camino"
        }, {
            string : navigator.userAgent,
            subString : "Netscape",
            identity : "Netscape"
        }, {
            string : navigator.userAgent,
            subString : "MSIE",
            identity : "Explorer",
            versionSearch : "MSIE"
        }, {
            string : navigator.userAgent,
            subString : "Gecko",
            identity : "Mozilla",
            versionSearch : "rv"
        }, {
            string : navigator.userAgent,
            subString : "Mozilla",
            identity : "Netscape",
            versionSearch : "Mozilla"
        }];

BrowserDetect.DATA_OS = [{
            string : navigator.platform,
            subString : "Win",
            identity : "Windows"
        }, {
            string : navigator.platform,
            subString : "Mac",
            identity : "Mac"
        }, {
            string : navigator.userAgent,
            subString : "iPhone",
            identity : "iPhone/iPod"
        }, {
            string : navigator.platform,
            subString : "Linux",
            identity : "Linux"
        }];

// initializes the browser detection system
BrowserDetect();