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function element_has_focus(element) {
return element === document.activeElement;
}
function json_or_default_async(response, defaultValue = undefined) {
try {
return response.json();
} catch {
return new Promise(resolve => resolve(defaultValue));
}
}
function move_focus(element) {
if (!element) {
element = document.getElementsByTagName("body")[0];
}
element.focus();
if (!element_has_focus(element)) {
element.setAttribute("tabindex", "-1");
element.focus();
}
}
function is_promise(p) {
if (typeof p === "object" && typeof p.then === "function") {
return true;
}
return false;
}
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function retry(action, predicateOrRetryCount = 4, cooldown = 250) {
let result = undefined;
const maxTries = 1000;
if (typeof predicateOrRetryCount === "number") {
let tries = 0;
if (predicateOrRetryCount > maxTries) {
throw new Error("Retry count is larger than limit: " + maxTries);
}
while (!result && tries < predicateOrRetryCount) {
await sleep(cooldown);
result = is_promise(action) ? await action() : action();
tries++;
}
}
if (typeof predicateOrRetryCount === "function") {
let tries = 0;
while (predicateOrRetryCount(result) === false && tries < maxTries) {
await sleep(cooldown);
result = is_promise(action) ? await action() : action();
tries++;
}
}
return result;
}
function generate_unsafe_id(length) {
if (!length) {
throw new Error("length is undefined");
}
let result = "";
const characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
const charactersLength = characters.length;
for (let i = 0; i < length; i++) {
result += characters.charAt(Math.floor(Math.random() * charactersLength));
}
return result;
}
function pick_file(cb, options = {}) {
const input = create_element("input", {
type: "file",
multiple: options?.multiple ?? null,
accept: options?.accept ?? null,
style: {
display: "none"
},
onchange: event => {
if (cb && typeof cb === "function") {
cb(input.files);
}
input.remove();
}
});
document.body.appendChild(input);
input.click();
}
function create_element_from_object(elementOptions) {
return create_element(elementOptions.name, elementOptions.properties, elementOptions.children);
}
function style_string(style_object) {
const camelToKebab = (input) => input.replace(/[A-Z]+(?![a-z])|[A-Z]/g, ($, ofs) => (ofs ? "-" : "") + $.toLowerCase());
const res = Object.keys(style_object).map(property => `${camelToKebab(property)}: ${style_object[property]};`).join("\n");
return res;
}
function create_element(name, properties, children) {
if (!name || name.length < 1) {
throw new Error("name is required");
}
const node = document.createElement(name);
for (const [key, value] of Object.entries(properties)) {
if (!value) {
continue;
}
if (key === "style") {
node.style.cssText = style_string(value);
continue;
}
node[key] = value;
}
if (children?.length > 0 ?? false) {
let actualChildren = children;
if (typeof children === "function") {
actualChildren = children();
}
for (const child of actualChildren) {
node.appendChild(child);
}
}
return node;
}
// https://stackoverflow.com/a/45215694/11961742
function get_selected_options(domElement) {
const ret = [];
if (domElement.selectedOptions !== undefined) {
for (let i = 0; i < domElement.selectedOptions.length; i++) {
ret.push(domElement.selectedOptions[i].value);
}
} else {
for (let i = 0; i < domElement.options.length; i++) {
if (domElement.options[i].selected) {
ret.push(domElement.options[i].value);
}
}
}
return ret;
}
function get_element_position(element) {
if (!element) {
return {x: 0, y: 0};
}
let x = 0;
let y = 0;
while (true) {
x += element.offsetLeft;
y += element.offsetTop;
if (element.offsetParent === null) {
break;
}
element = element.offsetParent;
}
return {x, y};
}
function restrict_input_to_numbers(element, specials = [], mergeSpecialsWithDefaults = false) {
if (!element) {
return;
}
element.addEventListener("keydown", (e) => {
const defaultSpecials = ["Backspace", "ArrowLeft", "ArrowRight", "Tab"];
let keys = specials.length > 0 ? specials : defaultSpecials;
if (mergeSpecialsWithDefaults && specials) {
keys = [...specials, ...defaultSpecials];
}
if (keys.indexOf(e.key) !== -1) {
return;
}
if (isNaN(parseInt(e.key))) {
e.preventDefault();
}
});
}
// A formatted version of a popular md5 implementation.
// Original copyright (c) Paul Johnston & Greg Holt.
// The function itself is now 42 lines long.
// https://stackoverflow.com/a/60467595 "Don't deny."
function get_md5_hash(inputString) {
const hc = "0123456789abcdef";
function rh(n) {
var j, s = "";
for (j = 0; j <= 3; j++) {
s += hc.charAt((n >> (j * 8 + 4)) & 0x0F) + hc.charAt((n >> (j * 8)) & 0x0F);
}
return s;
}
function ad(x, y) {
var l = (x & 0xFFFF) + (y & 0xFFFF);
var m = (x >> 16) + (y >> 16) + (l >> 16);
return (m << 16) | (l & 0xFFFF);
}
function rl(n, c) {
return (n << c) | (n >>> (32 - c));
}
function cm(q, a, b, x, s, t) {
return ad(rl(ad(ad(a, q), ad(x, t)), s), b);
}
function ff(a, b, c, d, x, s, t) {
return cm((b & c) | ((~b) & d), a, b, x, s, t);
}
function gg(a, b, c, d, x, s, t) {
return cm((b & d) | (c & (~d)), a, b, x, s, t);
}
function hh(a, b, c, d, x, s, t) {
return cm(b ^ c ^ d, a, b, x, s, t);
}
function ii(a, b, c, d, x, s, t) {
return cm(c ^ (b | (~d)), a, b, x, s, t);
}
function sb(x) {
var i;
var nblk = ((x.length + 8) >> 6) + 1;
var blks = new Array(nblk * 16);
for (i = 0; i < nblk * 16; i++) {
blks[i] = 0;
}
for (i = 0; i < x.length; i++) {
blks[i >> 2] |= x.charCodeAt(i) << ((i % 4) * 8);
}
blks[i >> 2] |= 0x80 << ((i % 4) * 8);
blks[nblk * 16 - 2] = x.length * 8;
return blks;
}
var i, x = sb(inputString), a = 1732584193, b = -271733879, c = -1732584194, d = 271733878, olda, oldb, oldc, oldd;
for (i = 0; i < x.length; i += 16) {
olda = a;
oldb = b;
oldc = c;
oldd = d;
a = ff(a, b, c, d, x[i + 0], 7, -680876936);
d = ff(d, a, b, c, x[i + 1], 12, -389564586);
c = ff(c, d, a, b, x[i + 2], 17, 606105819);
b = ff(b, c, d, a, x[i + 3], 22, -1044525330);
a = ff(a, b, c, d, x[i + 4], 7, -176418897);
d = ff(d, a, b, c, x[i + 5], 12, 1200080426);
c = ff(c, d, a, b, x[i + 6], 17, -1473231341);
b = ff(b, c, d, a, x[i + 7], 22, -45705983);
a = ff(a, b, c, d, x[i + 8], 7, 1770035416);
d = ff(d, a, b, c, x[i + 9], 12, -1958414417);
c = ff(c, d, a, b, x[i + 10], 17, -42063);
b = ff(b, c, d, a, x[i + 11], 22, -1990404162);
a = ff(a, b, c, d, x[i + 12], 7, 1804603682);
d = ff(d, a, b, c, x[i + 13], 12, -40341101);
c = ff(c, d, a, b, x[i + 14], 17, -1502002290);
b = ff(b, c, d, a, x[i + 15], 22, 1236535329);
a = gg(a, b, c, d, x[i + 1], 5, -165796510);
d = gg(d, a, b, c, x[i + 6], 9, -1069501632);
c = gg(c, d, a, b, x[i + 11], 14, 643717713);
b = gg(b, c, d, a, x[i + 0], 20, -373897302);
a = gg(a, b, c, d, x[i + 5], 5, -701558691);
d = gg(d, a, b, c, x[i + 10], 9, 38016083);
c = gg(c, d, a, b, x[i + 15], 14, -660478335);
b = gg(b, c, d, a, x[i + 4], 20, -405537848);
a = gg(a, b, c, d, x[i + 9], 5, 568446438);
d = gg(d, a, b, c, x[i + 14], 9, -1019803690);
c = gg(c, d, a, b, x[i + 3], 14, -187363961);
b = gg(b, c, d, a, x[i + 8], 20, 1163531501);
a = gg(a, b, c, d, x[i + 13], 5, -1444681467);
d = gg(d, a, b, c, x[i + 2], 9, -51403784);
c = gg(c, d, a, b, x[i + 7], 14, 1735328473);
b = gg(b, c, d, a, x[i + 12], 20, -1926607734);
a = hh(a, b, c, d, x[i + 5], 4, -378558);
d = hh(d, a, b, c, x[i + 8], 11, -2022574463);
c = hh(c, d, a, b, x[i + 11], 16, 1839030562);
b = hh(b, c, d, a, x[i + 14], 23, -35309556);
a = hh(a, b, c, d, x[i + 1], 4, -1530992060);
d = hh(d, a, b, c, x[i + 4], 11, 1272893353);
c = hh(c, d, a, b, x[i + 7], 16, -155497632);
b = hh(b, c, d, a, x[i + 10], 23, -1094730640);
a = hh(a, b, c, d, x[i + 13], 4, 681279174);
d = hh(d, a, b, c, x[i + 0], 11, -358537222);
c = hh(c, d, a, b, x[i + 3], 16, -722521979);
b = hh(b, c, d, a, x[i + 6], 23, 76029189);
a = hh(a, b, c, d, x[i + 9], 4, -640364487);
d = hh(d, a, b, c, x[i + 12], 11, -421815835);
c = hh(c, d, a, b, x[i + 15], 16, 530742520);
b = hh(b, c, d, a, x[i + 2], 23, -995338651);
a = ii(a, b, c, d, x[i + 0], 6, -198630844);
d = ii(d, a, b, c, x[i + 7], 10, 1126891415);
c = ii(c, d, a, b, x[i + 14], 15, -1416354905);
b = ii(b, c, d, a, x[i + 5], 21, -57434055);
a = ii(a, b, c, d, x[i + 12], 6, 1700485571);
d = ii(d, a, b, c, x[i + 3], 10, -1894986606);
c = ii(c, d, a, b, x[i + 10], 15, -1051523);
b = ii(b, c, d, a, x[i + 1], 21, -2054922799);
a = ii(a, b, c, d, x[i + 8], 6, 1873313359);
d = ii(d, a, b, c, x[i + 15], 10, -30611744);
c = ii(c, d, a, b, x[i + 6], 15, -1560198380);
b = ii(b, c, d, a, x[i + 13], 21, 1309151649);
a = ii(a, b, c, d, x[i + 4], 6, -145523070);
d = ii(d, a, b, c, x[i + 11], 10, -1120210379);
c = ii(c, d, a, b, x[i + 2], 15, 718787259);
b = ii(b, c, d, a, x[i + 9], 21, -343485551);
a = ad(a, olda);
b = ad(b, oldb);
c = ad(c, oldc);
d = ad(d, oldd);
}
return rh(a) + rh(b) + rh(c) + rh(d);
}
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