demarches-normaliennes/app/javascript/shared/utils.js
Pierre de La Morinerie 6de5c0c9d1 autosave: make requests time out
This avoids recent requests being stuck because an older request never
finished.
2019-11-21 14:00:06 +01:00

109 lines
2.8 KiB
JavaScript

import Rails from '@rails/ujs';
import $ from 'jquery';
import debounce from 'debounce';
export { debounce };
export const { fire, ajax } = Rails;
export function show(el) {
el && el.classList.remove('hidden');
}
export function hide(el) {
el && el.classList.add('hidden');
}
export function toggle(el) {
el && el.classList.toggle('hidden');
}
export function enable(el) {
el && (el.disabled = false);
}
export function disable(el) {
el && (el.disabled = true);
}
export function hasClass(el, cssClass) {
return el && el.classList.contains(cssClass);
}
export function addClass(el, cssClass) {
el && el.classList.add(cssClass);
}
export function removeClass(el, cssClass) {
el && el.classList.remove(cssClass);
}
export function delegate(eventNames, selector, callback) {
eventNames
.split(' ')
.forEach(eventName =>
Rails.delegate(document, selector, eventName, callback)
);
}
export function getJSON(url, data, method = 'get') {
incrementActiveRequestsCount();
data = method !== 'get' ? JSON.stringify(data) : data;
return Promise.resolve(
$.ajax({
method,
url,
data,
contentType: 'application/json',
dataType: 'json'
})
).finally(decrementActiveRequestsCount);
}
export function scrollTo(container, scrollTo) {
container.scrollTop =
offset(scrollTo).top - offset(container).top + container.scrollTop;
}
export function scrollToBottom(container) {
container.scrollTop = container.scrollHeight;
}
export function on(selector, eventName, fn) {
[...document.querySelectorAll(selector)].forEach(element =>
element.addEventListener(eventName, event => fn(event, event.detail))
);
}
export function to(promise) {
return promise.then(result => [result]).catch(error => [null, error]);
}
function offset(element) {
const rect = element.getBoundingClientRect();
return {
top: rect.top + document.body.scrollTop,
left: rect.left + document.body.scrollLeft
};
}
// Takes a promise, and return a promise that times out after the given delay.
export function timeoutable(promise, timeoutDelay) {
let timeoutPromise = new Promise((resolve, reject) => {
setTimeout(() => {
reject(new Error(`Promise timed out after ${timeoutDelay}ms`));
}, timeoutDelay);
});
return Promise.race([promise, timeoutPromise]);
}
const DATA_ACTIVE_REQUESTS_COUNT = 'data-active-requests-count';
function incrementActiveRequestsCount() {
const count = document.body.getAttribute(DATA_ACTIVE_REQUESTS_COUNT) || '0';
document.body.setAttribute(DATA_ACTIVE_REQUESTS_COUNT, parseInt(count) + 1);
}
function decrementActiveRequestsCount() {
const count = document.body.getAttribute(DATA_ACTIVE_REQUESTS_COUNT) || '0';
document.body.setAttribute(DATA_ACTIVE_REQUESTS_COUNT, parseInt(count) - 1);
}