/*
logsaver.js v0.1.0
https://github.com/chaddotson/logsaver/
(c) 2016 Chad Dotson
logsaver.js may be freely distributed under the GNUv3 license.
*/
(function(root) {
'use strict';
var _root = root;
var _localStorageKeyForLog = "console.log.saved";
var _includeTimestamp = false;
var _originalLog;
function _isEnabled() {
return _originalLog !== undefined;
}
function _zeroPad(str) {
str = str + ""; // force it to be a string.
return ((str.length < 2) ? "0" + str : str);
}
function _formatDate() {
return this.getFullYear() + "/" + _zeroPad(this.getMonth()) + "/" + _zeroPad(this.getDay()) + " - " + _zeroPad(this.getHours()) + ":" + _zeroPad(this.getMinutes()) + ":" + _zeroPad(this.getSeconds());
}
_root.clearSavedLog = function () {
if(localStorage[_localStorageKeyForLog]) {
localStorage[_localStorageKeyForLog] = "";
return true;
}
return false;
};
_root.removeSavedLog = function () {
if(localStorage[_localStorageKeyForLog] !== undefined) {
localStorage.removeItem(_localStorageKeyForLog);
return true;
}
return false;
};
_root.stopSavingLog = function () {
if(!_isEnabled()) {
console.log("Not currently saving console.log to localStorage.");
return false;
}
console.log = _originalLog;
_originalLog = undefined;
console.log("No longer saving console.log to localStorage.");
return true;
};
_root.startSavingLog = function (options) {
options = options || {};
if(_isEnabled()) {
_originalLog.call(console, "Already saving console.log. localStorage Key:" + _localStorageKeyForLog);
return false;
}
_localStorageKeyForLog = options.keyForLocalStorage || _localStorageKeyForLog;
var timestampFormatter = options.timestampFormatter || _formatDate;
_originalLog = console.log;
console.log = function(){
_originalLog.apply(console, arguments);
var formattedTimestamp = timestampFormatter.apply(new Date());
var message = "\n "+ formattedTimestamp + " :: " + Array.prototype.join.call(arguments, ", ");
try {
if(!localStorage[_localStorageKeyForLog]) {
localStorage[_localStorageKeyForLog] = "";
}
localStorage[_localStorageKeyForLog] += message;
} catch (e) {
if (e == QUOTA_EXCEEDED_ERR) {
_originalLog.apply(console, arguments.splice(0, 0, "SAVE FAILED - LOCAL STORAGE QUOTA EXCEEDED"));
} else {
_originalLog.apply(console, arguments.splice(0, 0, "SAVE FAILED"));
}
}
}
_originalLog.call(console, "Now saving console.log to localStorage Key:" + _localStorageKeyForLog);
return true;
};
})(this);
