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function countsOfUnreadMessagesAfterMarker(unreadMarker) {
var children = unreadMarker.parentElement.childNodes;
var unread = 0;
var unreadHighlighted = 0;
for(var i = children.length-1; i >= 0; --i) {
if (children[i] === unreadMarker) {
break;
}
if (children[i].classList === undefined) {
continue;
}
if (children[i].classList.contains('msg')) {
unread++;
if (children[i].classList.contains('highlight')) {
unreadHighlighted++;
}
}
}
return [unread, unreadHighlighted];
}
module.exports = Ferdi => {
var unreadMessagesAtLastActivity = 0;
var unreadHighlightedMessagesAtLastActivity = 0;
const getMessages = () => {
// In order to get a correct tally of unread messages, we must
// consider both the badges on the various channels, plus the
// number of messages that appear after the 'unread' banner that
// appears in the page. In the latter case, we should ignore any
// messages that arrived before or while the app has focus.
let direct = 0;
var directElements = document.querySelectorAll('.badge.highlight');
for (const directElement of directElements) {
if (directElement.textContent.length > 0) {
direct += Ferdi.safeParseInt(directElement.textContent);
}
}
let indirect = 0;
const indirectElements = document.querySelectorAll(
'.badge:not(.highlight)',
);
for (const indirectElement of indirectElements) {
if (indirectElement.textContent.length > 0) {
indirect++;
}
}
const unreadMarkers = document.querySelectorAll('div.unread-marker');
if (unreadMarkers.length > 0) {
var counts = countsOfUnreadMessagesAfterMarker(unreadMarkers[0]);
var unread = counts[0];
var unreadHighlighted = counts[1];
if (document.hasFocus()) {
unreadMessagesAtLastActivity = unread;
unreadHighlightedMessagesAtLastActivity = unreadHighlighted;
}
if (unread > unreadMessagesAtLastActivity) {
if (unreadHighlighted > 0 && unreadHighlighted > unreadHighlightedMessagesAtLastActivity) {
direct += (unreadHighlighted - unreadHighlightedMessagesAtLastActivity);
} else {
indirect++;
}
}
} else {
unreadMessagesAtLastActivity = 0;
unreadHighlightedMessagesAtLastActivity = 0;
}
Ferdi.setBadge(direct, indirect);
};
Ferdi.loop(getMessages);
// We need to monkey patch ServierWorker.postMessage so that notifications
// will work, and that needs to be done without context isolation:
const path = require('path');
Ferdi.injectJSUnsafe(path.join(__dirname, 'webview-unsafe.js'));
};
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