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authorHugo Hörnquist <hugo@lysator.liu.se>2021-10-04 17:40:59 +0200
committerHugo Hörnquist <hugo@lysator.liu.se>2021-10-04 17:43:45 +0200
commitc6c65f9e8273a5bc1b2ac1155d66003d2b98591c (patch)
treeda25ccd8af897dbc2671008e06f22d08d1208035 /static/lib.js
parentwork (diff)
downloadcalp-c6c65f9e8273a5bc1b2ac1155d66003d2b98591c.tar.gz
calp-c6c65f9e8273a5bc1b2ac1155d66003d2b98591c.tar.xz
{.js => .ts} on relavant files.
Diffstat (limited to 'static/lib.js')
-rw-r--r--static/lib.js205
1 files changed, 0 insertions, 205 deletions
diff --git a/static/lib.js b/static/lib.js
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-'use strict';
-/*
- General procedures which in theory could be used anywhere.
- */
-
-HTMLElement.prototype._addEventListener = HTMLElement.prototype.addEventListener;
-HTMLElement.prototype.addEventListener = function (name, proc) {
- if (! this.listeners) this.listeners = {};
- if (! this.listeners[name]) this.listeners[name] = [];
- this.listeners[name].push(proc);
- return this._addEventListener(name, proc);
-};
-
-
-
-/* list of lists -> list of tuples */
-function zip(...args) {
- // console.log(args);
- if (args === []) return [];
- return [...Array(Math.min(...args.map(x => x.length))).keys()]
- .map((_, i) => args.map(lst => lst[i]));
-}
-
-
-/* ----- Date Extensions ---------------------------- */
-
-/*
- Extensions to Javascript's Date to allow representing times
- with different timezones. Currently only UTC and local time
- are supported, but more should be able to be added.
-
- NOTE that only the raw `get' (and NOT the `getUTC') methods
- should be used on these objects, and that the reported timezone
- is quite often wrong.
-
- TODO The years between 0 and 100 (inclusive) gives dates in the twentieth
- century, due to how javascript works (...).
- */
-
-function parseDate(str) {
- let year, month, day, hour=false, minute, second=0, utc;
-
- let end = str.length - 1;
- if (str[end] == 'Z') {
- utc = true;
- str = str.substring(0, end);
- };
-
- switch (str.length) {
- case '2020-01-01T13:37:00'.length:
- second = str.substr(17,2);
- case '2020-01-01T13:37'.length:
- hour = str.substr(11,2);
- minute = str.substr(14,2);
- case '2020-01-01'.length:
- year = str.substr(0,4);
- month = str.substr(5,2) - 1;
- day = str.substr(8,2);
- break;
- default:
- throw 'Bad argument';
- }
-
- let date;
- if (hour) {
- date = new Date(year, month, day, hour, minute, second);
- date.utc = utc;
- date.dateonly = false;
- } else {
- date = new Date(year, month, day);
- date.dateonly = true;
- }
- return date;
-}
-
-function copyDate(date) {
- let d = new Date(date);
- d.utc = date.utc;
- d.dateonly = date.dateonly;
- return d;
-}
-
-function to_local(date) {
- if (! date.utc) return date;
-
- return new Date(date.getTime() - date.getTimezoneOffset() * 60 * 1000);
-}
-
-/* -------------------------------------------------- */
-
-function makeElement (name, attr={}) {
- let element = document.createElement(name);
- for (let [key, value] of Object.entries(attr)) {
- element[key] = value;
- }
- return element;
-}
-
-function round_time (time, fraction) {
- let scale = 1 / fraction;
- return Math.round (time * scale) / scale;
-}
-
-/* only used by the bar.
- Events use the start and end time of their container, but since the bar
- is moving between containers that is clumsy.
- Just doing (new Date()/(86400*1000)) would be nice, but there's no good
- way to get the time in the current day.
- */
-function date_to_percent (date) {
- return (date.getHours() + (date.getMinutes() / 60)) * 100/24;
-}
-
-/* if only there was such a thing as a let to wrap around my lambda... */
-/* js infix to not collide with stuff generated backend */
-const gensym = (counter => (prefix="gensym") => prefix + "js" + ++counter)(0)
-
-function setVar(str, val) {
- document.documentElement.style.setProperty("--" + str, val);
-}
-
-
-function asList(thing) {
- if (thing instanceof Array) {
- return thing;
- } else {
- return [thing];
- }
-}
-
-
-function boolean (value) {
- switch (typeof value) {
- case 'string':
- switch (value) {
- case 'true': return true;
- case 'false': return false;
- case '': return false;
- default: return true;
- }
- case 'boolean':
- return value;
- default:
- return !! value;
- }
-}
-
-
-
-/* internal */
-function datepad(thing, width=2) {
- return (thing + "").padStart(width, "0");
-}
-
-function format_date(date, str) {
- let fmtmode = false;
- let outstr = "";
- for (var i = 0; i < str.length; i++) {
- if (fmtmode) {
- switch (str[i]) {
- /* Moves the date into local time. */
- case 'L': date = to_local(date); break;
- case 'Y': outstr += datepad(date.getFullYear(), 4); break;
- case 'm': outstr += datepad(date.getMonth() + 1); break;
- case 'd': outstr += datepad(date.getDate()); break;
- case 'H': outstr += datepad(date.getHours()); break;
- case 'M': outstr += datepad(date.getMinutes()); break;
- case 'S': outstr += datepad(date.getSeconds()); break;
- case 'Z': if (date.utc) outstr += 'Z'; break;
- }
- fmtmode = false;
- } else if (str[i] == '~') {
- fmtmode = true;
- } else {
- outstr += str[i];
- }
- }
- return outstr;
-}
-
-Object.prototype.format = function (/* any number of arguments */) { return "" + this; }
-Date.prototype.format = function (str) { return format_date (this, str); }
-
-/*
- * Finds the first element of the DOMTokenList whichs value matches
- * the supplied regexp. Returns a pair of the index and the value.
- */
-DOMTokenList.prototype.find = function (regexp) {
- let entries = this.entries();
- let entry;
- while (! (entry = entries.next()).done) {
- if (entry.value[1].match(regexp)) {
- return entry.value;
- }
- }
-}
-
-/* HTMLCollection is the result of a querySelectorAll */
-HTMLCollection.prototype.forEach = function (proc) {
- for (let el of this) {
- proc(el);
- }
-}
-
-const xcal = "urn:ietf:params:xml:ns:icalendar-2.0";