/** * File: util/log.js * Creates a simple logger to help debug javascript. It will open a new window so popup * blocking may keep it from working. * * Copyright: 2005 Rob Rohan (robrohan@gmail.com) * * Updated 2005-03-15 */ /** * Variable: DEBUG_VERSION * the library version */ var DEBUG_VERSION = "0.1"; /** * Variable: DEBUG * set this to true to turn on debug mode (get the console going) */ var DEBUG = false; /** * Variable: TYPE_DEBUG * used within the class to tell what type of event */ var TYPE_DEBUG = "DEBUG"; /** * Variable: TYPE_WARN * used within the class to tell what type of event */ var TYPE_WARN = "WARN"; /** * Variable: TYPE_INFO * used within the class to tell what type of event */ var TYPE_INFO = "INFO"; /** * Variable: TYPE_ERROR * used within the class to tell what type of event */ var TYPE_ERROR = "ERROR"; ///////////////////////////////////////////////////////////////////////////////////// /** * Class: Log * Constructor for the logging window (or other std output if implemented) */ function Log() { this.NEW_WINDOW = 0; this.TEXT_AREA = 1; this.STRING_BUFFER = 2; this.running = false; this.logbuffer = ""; this.type = this.NEW_WINDOW; } /** * Method: Log.init * Start up the log object and make sure any supporting items are created * a new window for example. Will check the DEBUG flag and send * any text to /dev/null if not in debug mode (i.e. DEBUG set to false) */ Log.prototype.init = function __log__init() { if(DEBUG) { //there will be more of these at some point switch(this.type) { case this.NEW_WINDOW: this.__openwindow(); break; } this.running = true; this.info("Neuromancer Log (re)init...",this); } }; /* not an api call */ Log.prototype.__openwindow = function __log__openwindow() { var wndptr = window.open( '', 'Log_Viewer', 'height=630,width=550,scrollbars=yes,resizable=yes,left=300,top=100,status=no,toolbar=no,location=no' ); //write the main part of the page wndptr.document.open(); wndptr.document.write(''); wndptr.document.close(); bdy = wndptr.document.getElementsByTagName("body"); toolbarele = wndptr.document.createElement("div"); toolbarele.setAttribute("id","LogToolBar"); toolbarele.setAttribute("style","background-color: silver; padding: 0px; margin: 0px; width: 100%; top 0px; position: fixed !important; position: absolute; white-space: nowrap; z-Index: 1000000;"); toolbarele.innerHTML=""; logtextele = wndptr.document.createElement("div"); logtextele.setAttribute("id","LogText"); logtextele.setAttribute("style","top: 22px; width: 100%; height: 96%; position: relative;"); bdy.item(0).appendChild(toolbarele); bdy.item(0).appendChild(logtextele); this.textele_handle = logtextele; this.output_handle = wndptr; }; /* not an api call */ Log.prototype.__write = function __log__write(type, object, line) { //do nothing if the log was not started if(this.running == false) return; if(typeof object == "undefined") object = "NO OBJECT"; if(this.type == this.NEW_WINDOW) { if(!this.output_handle.document) { this.__openwindow(); } else { var date = new Date(); var datestring = (date.getYear() < 1900) ? date.getYear()+1900 : date.getYear(); datestring += "-" + (date.getMonth() + 1) datestring += "-" + date.getDate(); datestring += " " + date.getHours() + ":" + ((date.getMinutes() >= 10) ? date.getMinutes() : "0" + date.getMinutes()) + ":" + ((date.getSeconds() >= 10) ? date.getSeconds() : "0" + date.getSeconds()); var newline = this.output_handle.document.createElement("div"); switch(type) { case TYPE_DEBUG: newline.setAttribute("class","debug"); break; case TYPE_INFO: newline.setAttribute("class","info"); break; case TYPE_WARN: newline.setAttribute("class","warn"); break; case TYPE_ERROR: newline.setAttribute("class","error"); break; } newline.innerHTML = "[" + datestring + "] " + type + " :: " + (typeof object) + " :: " + line; this.textele_handle.appendChild(newline); this.output_handle.scrollTo(0,this.textele_handle.scrollHeight); //alert(this.textele_handle.scrollHeight); } } }; /** * Method: Log.debug * Write a debug line to the log * * Parameters: * line - the text for the log * object - (optional) the object this line is from "NO OBJECT" default */ Log.prototype.debug = function __log__debug(line, object) { this.__write(TYPE_DEBUG, object, line); }; /** * Method: Log.info * Write an info line to the log * * Parameters: * line - the text for the log * object - (optional) the object this line is from "NO OBJECT" default */ Log.prototype.info = function __log__info(line, object) { this.__write(TYPE_INFO, object, line); }; /** * Method: Log.warn * Write a warn line to the log * * Parameter: * line - the text for the log * object - (optional) the object this line is from "NO OBJECT" default */ Log.prototype.warn = function __log__warn(line, object) { this.__write(TYPE_WARN, object, line); }; /** * Method: Log.error * Write an error line to the log * Parameter: * line - the text for the log * object - (optional) the object this line is from "NO OBJECT" default * */ Log.prototype.error = function __log__error(line, object) { this.__write(TYPE_ERROR, object, line); }; /** * Variable: log * a default log for page use. */ var log = new Log(); if(DEBUG) log.init();