2019-07-11 02:25:40 +00:00
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// Core javascript helper functions
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2020-10-24 02:58:05 +00:00
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'use strict';
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2019-07-11 02:25:40 +00:00
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// quickElement(tagType, parentReference [, textInChildNode, attribute, attributeValue ...]);
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function quickElement() {
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2020-10-24 02:58:05 +00:00
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const obj = document.createElement(arguments[0]);
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2019-07-11 02:25:40 +00:00
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if (arguments[2]) {
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2020-10-24 02:58:05 +00:00
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const textNode = document.createTextNode(arguments[2]);
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2019-07-11 02:25:40 +00:00
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obj.appendChild(textNode);
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}
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2020-10-24 02:58:05 +00:00
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const len = arguments.length;
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for (let i = 3; i < len; i += 2) {
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2019-07-11 02:25:40 +00:00
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obj.setAttribute(arguments[i], arguments[i + 1]);
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}
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arguments[1].appendChild(obj);
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return obj;
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}
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// "a" is reference to an object
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function removeChildren(a) {
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while (a.hasChildNodes()) {
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a.removeChild(a.lastChild);
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}
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}
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// ----------------------------------------------------------------------------
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// Find-position functions by PPK
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// See https://www.quirksmode.org/js/findpos.html
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// ----------------------------------------------------------------------------
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function findPosX(obj) {
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2020-10-24 02:58:05 +00:00
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let curleft = 0;
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2019-07-11 02:25:40 +00:00
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if (obj.offsetParent) {
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while (obj.offsetParent) {
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curleft += obj.offsetLeft - obj.scrollLeft;
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2020-10-24 02:58:05 +00:00
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obj = obj.offsetParent;
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2019-07-11 02:25:40 +00:00
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}
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} else if (obj.x) {
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curleft += obj.x;
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}
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return curleft;
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}
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function findPosY(obj) {
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2020-10-24 02:58:05 +00:00
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let curtop = 0;
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2019-07-11 02:25:40 +00:00
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if (obj.offsetParent) {
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while (obj.offsetParent) {
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curtop += obj.offsetTop - obj.scrollTop;
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2020-10-24 02:58:05 +00:00
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obj = obj.offsetParent;
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2019-07-11 02:25:40 +00:00
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}
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} else if (obj.y) {
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curtop += obj.y;
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}
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return curtop;
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}
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//-----------------------------------------------------------------------------
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// Date object extensions
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// ----------------------------------------------------------------------------
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2020-10-24 02:58:05 +00:00
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{
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2019-07-11 02:25:40 +00:00
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Date.prototype.getTwelveHours = function() {
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2020-01-04 14:37:42 +00:00
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return this.getHours() % 12 || 12;
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2019-07-11 02:25:40 +00:00
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};
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Date.prototype.getTwoDigitMonth = function() {
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return (this.getMonth() < 9) ? '0' + (this.getMonth() + 1) : (this.getMonth() + 1);
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};
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Date.prototype.getTwoDigitDate = function() {
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return (this.getDate() < 10) ? '0' + this.getDate() : this.getDate();
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};
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Date.prototype.getTwoDigitTwelveHour = function() {
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return (this.getTwelveHours() < 10) ? '0' + this.getTwelveHours() : this.getTwelveHours();
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};
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Date.prototype.getTwoDigitHour = function() {
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return (this.getHours() < 10) ? '0' + this.getHours() : this.getHours();
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};
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Date.prototype.getTwoDigitMinute = function() {
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return (this.getMinutes() < 10) ? '0' + this.getMinutes() : this.getMinutes();
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};
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Date.prototype.getTwoDigitSecond = function() {
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return (this.getSeconds() < 10) ? '0' + this.getSeconds() : this.getSeconds();
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};
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2021-04-11 19:51:12 +00:00
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Date.prototype.getAbbrevMonthName = function() {
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return typeof window.CalendarNamespace === "undefined"
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? this.getTwoDigitMonth()
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: window.CalendarNamespace.monthsOfYearAbbrev[this.getMonth()];
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};
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2019-07-11 02:25:40 +00:00
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Date.prototype.getFullMonthName = function() {
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return typeof window.CalendarNamespace === "undefined"
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? this.getTwoDigitMonth()
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: window.CalendarNamespace.monthsOfYear[this.getMonth()];
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};
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Date.prototype.strftime = function(format) {
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2020-10-24 02:58:05 +00:00
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const fields = {
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2021-04-11 19:51:12 +00:00
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b: this.getAbbrevMonthName(),
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2019-07-11 02:25:40 +00:00
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B: this.getFullMonthName(),
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c: this.toString(),
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d: this.getTwoDigitDate(),
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H: this.getTwoDigitHour(),
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I: this.getTwoDigitTwelveHour(),
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m: this.getTwoDigitMonth(),
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M: this.getTwoDigitMinute(),
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p: (this.getHours() >= 12) ? 'PM' : 'AM',
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S: this.getTwoDigitSecond(),
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w: '0' + this.getDay(),
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x: this.toLocaleDateString(),
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X: this.toLocaleTimeString(),
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y: ('' + this.getFullYear()).substr(2, 4),
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Y: '' + this.getFullYear(),
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'%': '%'
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};
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2020-10-24 02:58:05 +00:00
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let result = '', i = 0;
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2019-07-11 02:25:40 +00:00
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while (i < format.length) {
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if (format.charAt(i) === '%') {
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result = result + fields[format.charAt(i + 1)];
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++i;
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}
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else {
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result = result + format.charAt(i);
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}
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++i;
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}
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return result;
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};
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// ----------------------------------------------------------------------------
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// String object extensions
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// ----------------------------------------------------------------------------
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String.prototype.strptime = function(format) {
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2020-10-24 02:58:05 +00:00
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const split_format = format.split(/[.\-/]/);
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const date = this.split(/[.\-/]/);
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let i = 0;
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let day, month, year;
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2019-07-11 02:25:40 +00:00
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while (i < split_format.length) {
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switch (split_format[i]) {
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case "%d":
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day = date[i];
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break;
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case "%m":
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month = date[i] - 1;
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break;
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case "%Y":
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year = date[i];
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break;
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case "%y":
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2020-10-24 02:58:05 +00:00
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// A %y value in the range of [00, 68] is in the current
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// century, while [69, 99] is in the previous century,
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// according to the Open Group Specification.
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if (parseInt(date[i], 10) >= 69) {
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year = date[i];
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} else {
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year = (new Date(Date.UTC(date[i], 0))).getUTCFullYear() + 100;
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}
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2019-07-11 02:25:40 +00:00
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break;
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}
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++i;
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}
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// Create Date object from UTC since the parsed value is supposed to be
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// in UTC, not local time. Also, the calendar uses UTC functions for
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// date extraction.
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return new Date(Date.UTC(year, month, day));
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};
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2020-10-24 02:58:05 +00:00
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}
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