solid-ui/lib/log.js

UI library for writing Solid read-write-web applications

"use strict";

// Log of diagnostics -- node module version

/* global alert */
var wrapper = function wrapper() {
  var logger = {}; // ///////////////////////  Logging
  //
  // bitmask levels
  // var TNONE = 0

  var TERROR = 1;
  var TWARN = 2;
  var TMESG = 4;
  var TSUCCESS = 8;
  var TINFO = 16;
  var TDEBUG = 32;
  var TALL = 63;
  logger.level = TERROR + TWARN + TMESG;
  logger.ascending = false;

  logger.msg = function (str, type, typestr) {
    if (!type) {
      type = TMESG;
      typestr = 'mesg';
    }

    if (!(logger.level & type)) return; // bitmask

    if (typeof document !== 'undefined') {
      // Not AJAX environment
      var logArea = document.getElementById('status');
      if (!logArea) return; // Local version to reduce dependencies

      var escapeForXML = function escapeForXML(str) {
        // don't use library one in case ithasn't been loaded yet
        return str.replace(/&/g, '&amp;').replace(/</g, '&lt;');
      };

      var addendum = document.createElement('span');
      addendum.setAttribute('class', typestr);
      var now = new Date();
      addendum.innerHTML = now.getHours() + ':' + now.getMinutes() + ':' + now.getSeconds() + ' [' + typestr + '] ' + escapeForXML(str) + '<br/>';

      if (!logger.ascending) {
        logArea.appendChild(addendum);
      } else {
        logArea.insertBefore(addendum, logArea.firstChild);
      }
    } else if (typeof console !== 'undefined') {
      // node.js
      console.log(str);
      /*
      } else {
      var f = dump // || print
      if (!f) throw new Error('log: No way to output message: ' + str)
      f('Log: ' + str + '\n')
      */
    }
  }; // logger.msg


  logger.warn = function (msg) {
    logger.msg(msg, TWARN, 'warn');
  };

  logger.debug = function (msg) {
    logger.msg(msg, TDEBUG, 'dbug');
  };

  logger.info = function (msg) {
    logger.msg(msg, TINFO, 'info');
  };

  logger.error = function (msg) {
    logger.msg(msg, TERROR, 'eror');
  };

  logger.success = function (msg) {
    logger.msg(msg, TSUCCESS, 'good');
  };

  if (typeof alert !== 'undefined') {
    logger.alert = alert;
  } else {
    logger.alert = logger.warn;
  }
  /** clear the log window **/


  logger.clear = function () {
    var x = document.getElementById('status');
    if (!x) return;
    x.innerHTML = ''; // emptyNode(x);
  }; // clearStatus

  /** set the logging level **/


  logger.setLevel = function (x) {
    logger.level = TALL;
    logger.debug('Log level is now ' + x);
    logger.level = x;
  };

  logger.dumpHTML = function () {
    var l = logger.level;
    logger.level = TALL;
    logger.debug(document.innerHTML);
    logger.level = l;
  };

  return logger;
}; // wrapper


module.exports = wrapper();
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