mar10/fancytree

/*************************************************************************
    jquery.jsconsole.js
    Convert a div tag in to a log window.

    Copyright (c) 2012, Martin Wendt (http://wwWendt.de)
    Dual licensed under the MIT or GPL Version 2 licenses.
    http://code.google.com/p/dynatree/wiki/LicenseInfo

    A current version and some documentation is available at
        http://dynatree.googlecode.com/

    ${Version}
    ${Revision}


    Usage:
        logMsg("%o was toggled", this);

    @depends: jquery.js
*************************************************************************/

/*jslint laxbreak: true, browser: true, indent: 0, white: false, onevar: false */


// Start of local namespace
(function($) {
    var LOGLEVEL_Error = 3,
        LOGLEVEL_Warn = 2,
        LOGLEVEL_Info = 1,
        LOGLEVEL_Debug = 0,
        LEVEL_NAMES = {3: 'error', 2: 'warn', 1:'info', 0:'debug'},
        wc = window.console;

    var methods = {
        init: function(options) {
            // Create some defaults, extending them with any options that were provided
            var opts = $.extend( {
                logLevel: LOGLEVEL_Debug,
                logLevelWC: LOGLEVEL_Debug
            }, options);
            opts.count = 0;
            return this.each(function(){
//                $(window).bind("keydown.jsconsole", methods._keydown);
                var $this = $(this),
                    data = $this.data("jsconsole");
                // If the plugin hasn't been initialized yet
                if ( ! data ) {
                    $this.data("jsconsole", opts);
                }
            });
        },

        destroy: function( ) {
            return this.each(function(){
                $(window).unbind(".jsconsole");
                $(this).removeData("jsconsole");
            })
        },

        _log: function(args) {
            var $this = $(this),
                data = $this.data("jsconsole"),
                level = arguments[0],
                levelName = LEVEL_NAMES[level],
                args = Array.prototype.slice.call(arguments), // Copy into a real array
                prefix = levelName + " - ";

            data.count += 1;
            if(true){
                // Prepend timestamp
                var dt = new Date(),
                    tag = dt.getHours() + ":" + dt.getMinutes() + ":" + dt.getSeconds() + "." + dt.getMilliseconds();
                prefix += tag;
            }
            // Replace the first argument (level), with prefix
            args[0] = prefix;
            // Log to window.console
            if(wc && level >= data.logLevelWC){
                try {
                    switch( level ) {
                    case LOGLEVEL_Info:
                        wc.info.apply(wc, args);
                        break;
                    case LOGLEVEL_Warn:
                        wc.warn.apply(wc, args);
                        break;
                    case LOGLEVEL_Error:
                        wc.error.apply(wc, args);
                        break;
                    default:
                        wc.log.apply(wc, args);
                    }
                } catch(e) {
                }
            }
            if(level >= data.logLevel){
                // For html output we must concatenate single args as strings
                for(var i=0; i<args.length; i++){
                    args[i] = "" + args[i];
                }
                $("<div/>", {
                    text: args.join(" "),
                    "class": "logEntry " + levelName
                }).appendTo($this);
            }
        },
        debug: function(msg) {
            Array.prototype.unshift.call(arguments, LOGLEVEL_Debug); // prepend level
            methods._log.apply(this, arguments);
        },
        info: function(msg) {
            Array.prototype.unshift.call(arguments, LOGLEVEL_Info); // prepend level
            methods._log.apply(this, arguments);
        },
        warn: function(msg) {
            Array.prototype.unshift.call(arguments, LOGLEVEL_Warn); // prepend level
            methods._log.apply(this, arguments);
        },
        error: function(msg) {
            Array.prototype.unshift.call(arguments, LOGLEVEL_Error); // prepend level
            methods._log.apply(this, arguments);
        }
    };
    // Handle $('selector').jsconsole('method') calls
    $.fn.jsconsole = function( method ) {
        // Note: this is already a jQuery object
        if ( methods[method] ) {
            return methods[ method ].apply(this, Array.prototype.slice.call(arguments, 1));
        } else if ( typeof method === "object" || ! method ) {
            return methods.init.apply( this, arguments );
        } else {
            $.error("Method " +  method + " does not exist on jQuery.jsconsole");
        }
    };

// -----------------------------------------------------------------------------
})(jQuery);