invidious-experimenting/assets/js/subscribe_widget.js
2019-05-08 09:16:11 -05:00

77 lines
2.4 KiB
JavaScript

var subscribe_button = document.getElementById('subscribe');
subscribe_button.parentNode['action'] = 'javascript:void(0)';
if (subscribe_button.getAttribute('data-type') === 'subscribe') {
subscribe_button.onclick = subscribe;
} else {
subscribe_button.onclick = unsubscribe;
}
function subscribe(timeouts = 0) {
if (timeouts > 10) {
console.log('Failed to subscribe.');
return;
}
var url = '/subscription_ajax?action_create_subscription_to_channel=1&redirect=false' +
'&c=' + subscribe_data.ucid;
var xhr = new XMLHttpRequest();
xhr.responseType = 'json';
xhr.timeout = 20000;
xhr.open('POST', url, true);
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.send('csrf_token=' + subscribe_data.csrf_token);
var fallback = subscribe_button.innerHTML;
subscribe_button.onclick = unsubscribe;
subscribe_button.innerHTML = '<b>' + subscribe_data.unsubscribe_text + ' | ' + subscribe_data.sub_count_text + '</b>';
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
if (xhr.status != 200) {
subscribe_button.onclick = subscribe;
subscribe_button.innerHTML = fallback;
}
}
}
xhr.ontimeout = function () {
console.log('Subscribing timed out.');
subscribe(timeouts + 1);
}
}
function unsubscribe(timeouts = 0) {
if (timeouts > 10) {
console.log('Failed to subscribe');
return;
}
var url = '/subscription_ajax?action_remove_subscriptions=1&redirect=false' +
'&c=' + subscribe_data.ucid;
var xhr = new XMLHttpRequest();
xhr.responseType = 'json';
xhr.timeout = 20000;
xhr.open('POST', url, true);
xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xhr.send('csrf_token=' + subscribe_data.csrf_token);
var fallback = subscribe_button.innerHTML;
subscribe_button.onclick = subscribe;
subscribe_button.innerHTML = '<b>' + subscribe_data.subscribe_text + ' | ' + subscribe_data.sub_count_text + '</b>';
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
if (xhr.status != 200) {
subscribe_button.onclick = unsubscribe;
subscribe_button.innerHTML = fallback;
}
}
}
xhr.ontimeout = function () {
console.log('Unsubscribing timed out.');
unsubscribe(timeouts + 1);
}
}