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/* global require, App, Feeds, PluginHost */
require(['dojo/_base/kernel', 'dojo/ready'], function (dojo, ready) {
ready(function() {
function updateFaviconBadge(unread = 0, fresh = 0) {
window.requestAnimationFrame(() => {
const canvas = document.createElement('canvas');
canvas.width = 16;
canvas.height = 16;
if (canvas.getContext) {
const link = App.find("link[rel='shortcut icon']");
const ctx = canvas.getContext('2d');
const img = new Image();
img.src = 'images/favicon.png';
img.onload = function() {
if (unread > 0 || fresh > 0) {
let bg_color = "#257aa7";
let count = unread;
if (fresh > 0) {
count = fresh;
bg_color = "#25a738";
}
if (count > 99)
count = 99;
ctx.fillStyle = bg_color;
ctx.fillRect(0, 0, 16, 16);
ctx.fillStyle = 'white';
ctx.font = 'bold 10px sans-serif';
ctx.textAlign = 'center';
ctx.fillText(count, 8, 11);
} else {
ctx.drawImage(img, 0, 0, 16, 16);
}
link.type = 'image/x-icon';
link.href = canvas.toDataURL("image/x-icon");
};
}
});
}
PluginHost.register(PluginHost.HOOK_COUNTERS_PROCESSED, () => {
updateFaviconBadge(App.global_unread, Feeds.getUnread(-3, 0));
});
});
});
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