/**

 * Copyright (c) 2009-2010 Symbian Foundation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Contributors:

 */

///////////////////////////////////////////////////////////////////////////////

// Logger utility class that uses the Firebug console class.

// Constructor (everything is static so this is empty).

function Logger() {

    // Set default logger level.

    this.level = this.LOG_LEVEL_OFF;

}

// Logger levels.

Logger.prototype.LOG_LEVEL_DEBUG = 0;

Logger.prototype.LOG_LEVEL_INFO = 1;

Logger.prototype.LOG_LEVEL_WARN = 2;

Logger.prototype.LOG_LEVEL_ERROR = 3;

Logger.prototype.LOG_LEVEL_OFF = 4;

Logger.prototype.level = null;

Logger.prototype.filter = null;

// Disable logging on other browsers except Firefox.

Logger.prototype.enabled = (navigator.userAgent.indexOf("Firefox") != -1);

// Dumps an objects properties and methods to the console.

Logger.prototype.dump = function(obj) {

    if (this.enabled) {

        console.dir(obj);

    }

};

// Dumps a stracktrace to the console.

Logger.prototype.trace = function() {

    if (this.enabled) {

        console.trace();

    }

};

// Prints a debug message to the console.

Logger.prototype.debug = function(str) {

    if (this.enabled && this.level <= this.LOG_LEVEL_DEBUG) {

        if (this.filter == null) {

            console.debug(str);

        } else {

            var show = false;

            for (i in this.filter) {

                if (str.indexOf(this.filter[i]) >= 0) {

                    show = true;

                    break;

                }

            }

            if (show) {

                console.debug(str);

            }

        }

    }

};

// Prints an info message to the console.

Logger.prototype.info = function(str) {

    if (this.enabled && this.level <= this.LOG_LEVEL_INFO) {

        console.info(str);

    }

};

// Prints a warning message to the console.

Logger.prototype.warn = function(str) {

    if (this.enabled && this.level <= this.LOG_LEVEL_WARN) {

        console.warn(str);

    }

};

// Prints an error message to the console.

Logger.prototype.error = function(str) {

    if (this.enabled && this.level <= this.LOG_LEVEL_ERROR) {

        console.error(str);

    }

};