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jBUtil.js
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jBUtil.js
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/*
jBUtil v0.0.1
Copyright 2016 Alberto Bettin
Released under the MIT license
*/
(function () {
// avoid moltiple jB initialization
if (window.jB !== undefined) {
console.warn("jB: jB has been already defined!");
return;
}
// base jB, nothing more than a function and its prototype
var _jB = function () {
return this;
};
_jB.prototype = {};
//**************************************************************************
// jB base config
var jBMainconfig = {
segmentBaseRoot: "",
segmentIgnoreBaseRoot: "",
segmentSiteRoot: "",
sessionExpiredUrl: "",
silentMode: false
};
_jB.prototype.clearConfig = function () {
this.config = JSON.parse(JSON.stringify(jBMainconfig));
};
/**
* Set value(s) of config object
*
* @param {string} name the config key to edit
* @param {type} name the new value to set
* or
* @param {type} name the iterable object of key=> value to set
*
* @returns {undefined}
*/
_jB.prototype.setConfig = function () {
if (typeof arguments[0] === 'string') {
if (this.config.hasOwnProperty(arguments[0])) {
this.config[arguments[0]] = arguments[1];
} else {
console.warn('jB.setConfig: Invalid config key');
}
} else if (Array.isArray(arguments[0]) || typeof arguments[0] === 'object') {
for (var cfg in arguments[0]) {
this.setConfig(cfg, arguments[0][cfg]);
}
}
};
/**
* Access to the value of config object
* @param {type} cfg the key of the config
* @returns {mixed} the value, null is key doesn't exist
*/
_jB.prototype.getConfig = function (cfg) {
if (this.config.hasOwnProperty(cfg)) {
return this.config[cfg];
}
console.warn('jB.getConfig: Invalid config key');
return null;
};
//**************************************************************************
// jB functions
/**
* Count entities attributes
* @param {array, object, string, whatever} el the entity to count
* @returns {Number} the count number
*/
_jB.prototype.count = function (el) {
switch (typeof el) {
case "object":
var size = 0;
for (var key in el) {
if (el.hasOwnProperty(key))
size++;
}
return size;
case "array":
default:
return el.length;
}
};
/**
* Convert string get from an object
*
* @param {type} source the object containing params
* @returns {String} "get" string
*/
_jB.prototype.param = function (source) {
if (typeof jQuery !== 'undefined') {
return jQuery.param.apply(this, arguments);
}
var array = [];
for (var key in source) {
array.push(encodeURIComponent(key) + "=" + encodeURIComponent(source[key]));
}
return array.join("&");
};
/**
* Extend two or more objects
*
* if first param is true - deep mode is enebled
*
*
* @returns {jBUtilL#8._jB}
*/
_jB.prototype.extend = function () {
if (typeof jQuery !== 'undefined') {
return jQuery.extend.apply(this, arguments);
}
var options, name, src, copy, copyIsArray, clone, target = arguments[0] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if (typeof target === "boolean") {
deep = target;
// Skip the boolean and the target
target = arguments[i] || {};
i++;
}
// Handle case when target is a string or something (possible in deep copy)
if (typeof target !== "object" && typeof target !== "function") {
target = {};
}
// Extend jQuery itself if only one argument is passed
if (i === length) {
target = this;
i--;
}
for (; i < length; i++) {
// Only deal with non-null/undefined values
if ((options = arguments[i]) != null) {
// Extend the base object
for (name in options) {
src = target[name];
copy = options[name];
// Prevent never-ending loop
if (target === copy) {
continue;
}
// Recurse if we're merging plain objects or arrays
if (deep && copy && ((copyIsArray = Array.isArray(copy)) || typeof copy === 'object')) {
if (copyIsArray) {
copyIsArray = false;
clone = src && Array.isArray(src) ? src : [];
} else {
clone = src && typeof src === 'object' ? src : {};
}
// Never move original objects, clone them
target[name] = jB.extend(deep, clone, copy);
// Don't bring in undefined values
} else if (copy !== undefined) {
target[name] = copy;
}
}
}
}
// Return the modified object
return target;
};
/**
* Improved xhr call function, reduce some annoying configs and code required by
* the original version
*
* @param {object} para
* @returns {undefined} -
*/
_jB.prototype.fetch = function (para) {
var default_params = {
timeout: false,
data: {},
callback: function (obj) {
if (!jB.config.silentMode) {
console.warn("jB.fetch: No fetch-callback defined, server returns: " + obj);
}
},
silentMode: jB.config.silentMode
};
var response = {
elapsedTime: 0,
response: null,
status: -1,
msg: ""
};
var params = jB.extend({}, default_params, para);
if (params.call === undefined || params.call === '') {
response.status = 400;
response.msg = 'Invalid xhr_call parameters';
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + ' response from ' + params.xhr_call + ' after ' + response.elapsedTime + 's');
}
params.callback(response);
return;
}
var xhr = new XMLHttpRequest();
if (jB.count(params.data) > 0) {
// set post request with data
xhr.open('POST', jB.siteUrl(params.call), true);
xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.send(jB.param(params.data));
} else {
xhr.open('GET', jB.siteUrl(params.call), true);
xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
xhr.send();
}
var send_time = Date.now();
jB.wait({
sync_function: function () {
return xhr.readyState === 4;
},
sync_clock: 50,
timeout: params.timeout,
silentMode: true,
done_callback: function () {
response.status = xhr.status;
response.elapsedTime = (Date.now() - send_time) / 1000;
// check for login redirection
if (xhr.responseURL === jB.siteUrl('admin/users/login')) {
response.status = 406;
response.msg = "The session has been expired, please reload the page.";
if (!params.silentMode) {
// session lost, need to login again
alert('The session has been expired, please reload the page.');
}
params.callback(response);
return;
}
//try to parse JSON response
try {
response.response = JSON.parse(xhr.responseText);
} catch (e) {
response.status = 406;
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + ' (Not Acceptable) response from ' + params.call + ' after ' + response.elapsedTime.toFixed(2) + 's');
}
params.callback(response);
return;
}
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + ' response from ' + params.call + ' after ' + response.elapsedTime.toFixed(2) + 's');
}
params.callback(response);
},
timeout_callback: function () {
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + '(Timeout) response from ' + params.call + ' after ' + params.timeout.toFixed(2) + 's');
}
xhr.abort();
response.status = 504;
params.callback(response);
}
});
};
/**
* Improved xhr call function, reduce some annoying configs and code required by
* the original version (based on Promise)
*
* @param {object} para
* @returns Promise the promise to fetch the result
*/
_jB.prototype.promiseFetch = function (para) {
let defaultParams = {
timeout: false,
data: {},
silentMode: jB.config.silentMode
};
let response = {
elapsedTime: 0,
response: null,
status: -1,
msg: ""
};
let params = jB.extend({}, defaultParams, para);
if (params.call === undefined || params.call === '') {
console.error('jB.fetch: "call" parameter is not defined!');
return;
}
return new Promise((ps, pf) => {
let xhr = new XMLHttpRequest();
if (params.timeout > 0) {
xhr.timeout = params.timeout * 1000;
}
if (jB.count(params.data) > 0) {
// set post request with data
xhr.open('POST', jB.siteUrl(params.call), true);
xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
} else {
xhr.open('GET', jB.siteUrl(params.call), true);
xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
}
xhr.onload = function () {
response.status = this.status;
response.elapsedTime = (Date.now() - sendTime) / 1000;
if (response.status == 200) {
try {
response.response = JSON.parse(xhr.responseText);
} catch (e) {
response.status = 406;
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + ' (Not Acceptable) response from ' + params.call + ' after ' + response.elapsedTime.toFixed(2) + 's');
}
ps(response);
}
}
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + ' response from ' + params.call + ' after ' + response.elapsedTime.toFixed(2) + 's');
}
ps(response);
};
xhr.onerror = function () {
response.status = this.status;
response.elapsedTime = (Date.now() - sendTime) / 1000;
response.status = this.statusText;
pf(response);
};
xhr.ontimeout = function (e) {
response.status = 504;
// XMLHttpRequest timed out. Do something here.
if (!params.silentMode) {
console.log('jB.fetch: ' + response.status + '(Timeout) response from ' + params.call + ' after ' + params.timeout.toFixed(2) + 's');
}
this.abort();
pf(response);
};
if (jB.count(params.data) > 0) {
// set post request with data
xhr.send(jB.param(params.data));
} else {
xhr.send();
}
let sendTime = Date.now();
});
};
/**
* Busy waiting implementation
*
* @param {object} para
* @returns {undefined}
*/
_jB.prototype.wait = function (para) {
var default_params = {
sync_name: '',
sync_clock: 250,
sync_function: function () {
return false;
},
timeout: false,
silentMode: false,
done_callback: function () {
if (!jB.config.silentMode) {
console.warn("jB.wait: No wait-done_callback defined");
}
},
timeout_callback: function () {
},
clock_callback: function () {
}
};
var params = jB.extend({}, default_params, para);
var start_time = Date.now();
var clockInterval, timeoutTimer;
clockInterval = setInterval(function () {
routine();
}, params.sync_clock);
if (params.timeout !== false && params.timeout > 0) {
timeoutTimer = setInterval(function () {
clearInterval(clockInterval);
if (!params.silentMode) {
console.log('jB.wait: action (' + params.sync_name + ') timeout');
}
params.timeout_callback();
}, params.timeout);
}
var routine = function () {
if (params.sync_function() !== false) {
clearInterval(clockInterval);
if (params.timeout === false || params.timeout <= 0) {
clearTimeout(timeoutTimer);
}
if (!params.silentMode) {
var elapsed_time = (Date.now() - start_time) / 1000;
console.log('jB.wait: action (' + params.sync_name + ') done after ' + elapsed_time.toFixed(2) + 's');
}
params.done_callback();
return;
}
params.clock_callback();
};
};
/**
* Return the segment at required index (based on current url)
*
* @param {type} index
* @returns {jBUtilL#8._jB.prototype.segment.segments}
*/
_jB.prototype.segment = function (index) {
//remove character # at the end of the url
var sanitizedUrlMatch = _sanitizeUrl(window.location.href);
if (sanitizedUrlMatch.warn) {
if (!this.config.silentMode) {
console.warn("jB.segment: Current Url contains strange symbol");
}
}
var sCount = 0;
var segments = sanitizedUrlMatch.sanitized.replace(this.baseUrl(), "").split('/');
for (var i = index >= 0 ? 0 : (segments.length - 1); (index < 0 || i < segments.length) && (index >= 0 || i >= 0); index >= 0 ? i++ : i--) {
if (segments[i].length <= 0) {
continue;
}
if ((index >= 0 && sCount >= index - 1) || (index < 0 && sCount >= (-1 * index) - 1)) {
return segments[i];
}
sCount++;
}
if (!this.config.silentMode) {
console.warn("jB.segment: Invalid segment index, " + segments.length + "/" + index);
}
return null;
};
/**
* Return the base url, use if you what to create resource url
*
* @param {string} url - optional - the string you what to add at the end of base url
* @returns {string}
*/
_jB.prototype.baseUrl = function (url) {
var configBaseUrl = this.config.segmentBaseRoot ? _escapeSpecialCharRegex(this.config.segmentBaseRoot) : '';
var configBaseEscapeUrl = this.config.segmentIgnoreBaseRoot ? _escapeSpecialCharRegex(this.config.segmentIgnoreBaseRoot) : '';
var sanitizedUrlMatch = _sanitizeUrl(window.location.href);
if (sanitizedUrlMatch.warn) {
if (!this.config.silentMode) {
console.warn("jB.baseUrl: Current Url contains strange symbol");
}
}
var baseRegex = new RegExp("(.*" + (configBaseUrl ? configBaseUrl : '') + ")" + (configBaseEscapeUrl ? '\/+' + configBaseEscapeUrl : ''));
var homePath = sanitizedUrlMatch.sanitized.match(baseRegex)[1];
if (homePath === null && !this.config.silentMode) {
console.warn("jB.baseUrl: Empty Base Url, please check 'config.segmentUrlRoot'");
}
if (url !== undefined) {
homePath += (url.indexOf('/') !== 0 ? '/' : '') + url;
}
return homePath;
};
/**
* Return the site url, use if you what to create resource url
*
* @param {string} url - optional - the string you what to add at the end of site url
* @returns {string}
*/
_jB.prototype.siteUrl = function (url) {
var configSiteUrl = this.config.segmentSiteRoot ? _escapeSpecialCharRegex(this.config.segmentSiteRoot) : '';
//remove character # at the end of the url
var sanitizedUrlMatch = _sanitizeUrl(window.location.href);
if (sanitizedUrlMatch.warn) {
if (!this.config.silentMode) {
console.warn("jB.siteUrl: Current Url contains strange symbol");
}
}
var baseRegex = new RegExp("(.*\/+" + configSiteUrl + ")");
var homePath = sanitizedUrlMatch.sanitized.match(baseRegex)[1];
if (homePath === null && !this.config.silentMode) {
console.warn("jB.siteUrl: Empty Site Url, please check 'config.segmentUrlRoot'");
}
if (url !== undefined) {
homePath += (url.indexOf('/') !== 0 ? '/' : '') + url;
}
return homePath;
};
/**
* Return the human readable name of the browser
* @returns {String} the browser
* Should be:
* - Chrome
* - Firefox
* - Safari
* - IE <version>
*/
_jB.prototype.browserName = function () {
var is_chrome = navigator.userAgent.indexOf('Chrome') > -1;
var is_firefox = navigator.userAgent.indexOf('Firefox') > -1;
var is_safari = navigator.userAgent.indexOf("Safari") > -1;
var is_opera = navigator.userAgent.toLowerCase().indexOf("op") > -1;
if ((is_chrome) && (is_safari)) {
is_safari = false;
}
if ((is_chrome) && (is_opera)) {
is_chrome = false;
}
if (is_chrome) {
return 'Chrome';
}
if (is_firefox) {
return 'Firefox';
}
if (is_safari) {
return 'Safari';
}
var ua = window.navigator.userAgent;
var msie = ua.indexOf('MSIE ');
if (msie > 0) {
// IE 10 or older => return version number
return 'IE ' + parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);
}
var trident = ua.indexOf('Trident/');
if (trident > 0) {
// IE 11 => return version number
var rv = ua.indexOf('rv:');
return 'IE ' + parseInt(ua.substring(rv + 3, ua.indexOf('.', rv)), 10);
}
var edge = ua.indexOf('Edge/');
if (edge > 0) {
// Edge (IE 12+) => return version number
return 'IE ' + parseInt(ua.substring(edge + 5, ua.indexOf('.', edge)), 10);
}
if (is_opera) {
return 'Opera';
}
};
/**
* Check if we're running on a mobile device of not
* @returns {Boolean}
*/
_jB.prototype.isMobile = function () {
return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Windows Phone|Opera Mini/i.test(navigator.userAgent);
};
/**
* Round number to specified precision
* @param {number} number the number to round
* @param {number} precision the number of decimals we want to use
* @returns {number} the rounded number
*/
_jB.prototype.round = function (number, precision) {
if (precision === undefined) {
precision = 2;
}
return Math.round(number * Math.pow(10, precision)) / Math.pow(10, precision);
};
/**
* Check if a value is a number or not
*
* @param {type} number the number, we hope
* @returns {Boolean} true if it is a number, false otherwise
*/
_jB.prototype.isNumeric = function (number) {
return !isNaN(parseFloat(number)) && isFinite(number);
};
/**
* Extract a number from a mixed data
*
* @param {type} i the variable to use
* @returns {mixed} the number, null if no number can be returned
*/
_jB.prototype.parseNum = function (i) {
if (typeof i === 'string') {
// remove ' , uses as separator
i = i.replace(/\'/g, '');
//replace , whit .
var n = i.replace(/\,/g, '.');
//search first number
var n_c = n.match(/[-]?[0-9\.]+/);
if (n_c === null) {
return false;
}
//search for int number
if (n_c[0].match(/\.([0-9]+$)/) === null) {
return parseInt(n_c[0].replace(/\./g, ''));
}
//search for decimal number
var regex = /([-]?[0-9.]*)\.([0-9]+)$/;
var match = regex.exec(n_c[0]);
return parseFloat((match[1].replace(/\./g, '') + '.' + match[2]));
} else if (typeof i === 'number') {
//nothig to do
return i;
} else {
// doesn't know what to do
return false;
}
};
/**
* Format a number
* @param {type} n the number
* @param {type} p the decimal to show
* @returns {String}
*/
_jB.prototype.formatNum = function (n, p) {
if (p === undefined) {
p = 2;
}
var number = this.parseNum(n);
if (number === false) {
return '';
}
number = number.toFixed(2);
var sign = number < 0 ? "-" : "";
var i = Math.abs(parseInt(number)) + "";
var decimal = (number - i).toFixed(2);
var firstOff = i.length % 3;
return sign + (firstOff ? i.substr(0, firstOff) : "") + (!firstOff || firstOff >= i.length ? '' : '\'') + i.substring(firstOff).replace(/(\d{3})(?=\d{3})/g, "$1\'") + (p <= 0 ? '' : '.' + decimal.substring(decimal.length - p, decimal.length));
};
/**
* Parse a string that contains a well formatted date, null if the string wasn't recognized
* @param {string} string the date to parser
* @returns {Date} the parsed date, false if the string doesn't match with any date format
*/
_jB.prototype.parseDate = function (string) {
// date yyyy/mm/dd hh:ii:ss
var date_regex = string.match(/([0-9]{4})[\-\/]{1}([0-9]{1,2})[\-\/]{1}([0-9]{1,2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})/);
if (date_regex !== null && date_regex.length >= 7) {
return new Date(date_regex[1], parseInt(date_regex[2]) - 1, date_regex[3], date_regex[4], date_regex[5], date_regex[6]);
}
// date dd/mm/yyyy hh:ii:ss
var date_regex = string.match(/([0-9]{1,2})[\-\/]{1}([0-9]{1,2})[\-\/]{1}([0-9]{4}) ([0-9]{2}):([0-9]{2}):([0-9]{2})/);
if (date_regex !== null && date_regex.length >= 7) {
return new Date(date_regex[3], parseInt(date_regex[2]) - 1, date_regex[1], date_regex[4], date_regex[5], date_regex[6]);
}
// date dd/mm/yyyy
var date_regex = string.match(/([0-9]{1,2})[\-\/]{1}([0-9]{1,2})[\-\/]{1}([0-9]{4})/);
if (date_regex !== null && date_regex.length >= 4) {
return new Date(date_regex[3], parseInt(date_regex[2]) - 1, date_regex[1]);
}
// date mm/yyyy
date_regex = string.match(/([0-9]{1,2})[\-\/]{1}([0-9]{4})/);
if (date_regex !== null && date_regex.length >= 3) {
return new Date(date_regex[2], date_regex[1] - 1, 1);
}
// date yyyy-mm-dd
date_regex = string.match(/([0-9]{4})[\-]([0-9]{1,2})[\-]([0-9]{1,2})/);
if (date_regex !== null && date_regex.length >= 3) {
return new Date(date_regex[1], date_regex[2] - 1, date_regex[3]);
}
var lastTry = new Date(Date.parse(string));
if (Object.prototype.toString.call(lastTry) === "[object Date]" && !isNaN(lastTry.getTime())) {
return lastTry;
}
return false;
};
/**
*
*
* @param {type} format the format to use for the date
* - dd day 2 digits
* - mm month 2 digits
* - YYYY year 4 digits
* - HH hour 2 digits
* - ii minutes 2 digits
* - ss seconds 2 digits
* @param {Date} date the Date object to use, if undefined the current date will be used
* @returns {String} the formatted date
*/
_jB.prototype.formatDate = function (format, date) {
if (date === undefined) {
date = new Date();
}
var year = date.getFullYear(), month = date.getMonth() + 1, day = date.getDate(), hour = date.getHours(), minutes = date.getMinutes(), seconds = date.getSeconds();
var rFormat = format;
var replacements = {
dd: day > 9 ? day : ('0' + day),
mm: month > 9 ? month : ('0' + month),
yyyy: year,
YYYY: year,
HH: hour > 9 ? hour : ('0' + hour),
hh: hour > 9 ? hour : ('0' + hour),
ii: minutes > 9 ? minutes : ('0' + minutes),
ss: seconds > 9 ? seconds : ('0' + seconds)
};
for (var searchEntry in replacements) {
rFormat = rFormat.replace(searchEntry, replacements[searchEntry]);
}
return rFormat;
};
/**
* Emulate a form submit, via post
*
* @param {object} params
* @param {string} url [optional] - the value of action attribute, if not specified current url will be used
* @returns {undefined}
*/
_jB.prototype.formSubmit = function (params, url) {
//create aux form
var form = document.createElement("form");
form.setAttribute("method", 'post');
form.setAttribute('action', url !== undefined ? this.siteUrl(url) : window.location.href);
//insert key=> value elements
for (var key in params) {
if (params.hasOwnProperty(key)) {
_recoursiveCallInput(key, params[key], form);
}
}
//submit form
document.getElementsByTagName("body")[0].appendChild(form);
form.submit();
};
//**************************************************************************
// private methods - centralized functions
/**
* Creates an input recoursivelly, if the value is atom just add one input,
* if iterable creates recoursivelly one input for each child
*
* @param {string} key name of the key
* @param {mixed} value the value(s)
* @param {type} form the form node to insert the inputs
* @returns {undefined}
*/
var _recoursiveCallInput = function (key, value, form) {
if (value instanceof Array || typeof value === 'object') {
for (let paramSubkey in value) {
_recoursiveCallInput(key + "[" + paramSubkey + "]", value[paramSubkey], form);
}
} else {
var hiddenField = document.createElement("input");
hiddenField.setAttribute("type", "hidden");
hiddenField.setAttribute("name", key);
hiddenField.setAttribute("value", value);
form.appendChild(hiddenField);
}
}
/**
* Create a string with escaped special char, ready to be used as regex component
* @param {string} value
* @returns {string}
*/
var _escapeSpecialCharRegex = function (value) {
return value.replace('/', '\\\/')
.replace('.', '\\\.');
};
/**
* Sanitize url, return url whithout any "undesired" stuff (particular chars ..)
*
* @param {string} url the url to sanitize
* @returns {object} the response canatinig the following keys
* - sanitized - what you're looking for, the sanitized url
* - warning - true if the sanitize function found some "undesired" stuff
*/
var _sanitizeUrl = function (url) {
var sanitizedMatch = url.match(/^(.*?[a-zA-Z0-9_\/])(([$&+,:;=?@<>#%][^\/]*)?)$/);
if (sanitizedMatch === null) {
if (!this.config.silentMode) {
console.warn("jB: Current Url seems to be un-parsable");
}
}
return {
sanitized: sanitizedMatch !== null ? sanitizedMatch[1] : url,
warn: sanitizedMatch !== null && sanitizedMatch[2].length > 0
};
};
//**************************************************************************
// ready to expose jB to the world
window.jB = new _jB();
window.jB.clearConfig();
})();