drop.chapril.org-firefoxsend/app/ui/faviconProgressbar.js

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const { platform } = require('../utils');
const assets = require('../../common/assets');
const size = 32;
const loaderWidth = 5;
const loaderColor = '#0090ed';
function drawCircle(canvas, context, color, lineWidth, outerWidth, percent) {
canvas.width = canvas.height = outerWidth;
context.translate(outerWidth * 0.5, outerWidth * 0.5);
context.rotate(-Math.PI * 0.5);
const radius = (outerWidth - lineWidth) * 0.5;
context.beginPath();
context.arc(0, 0, radius, 0, Math.PI * 2 * percent, false);
context.strokeStyle = color;
context.lineCap = 'square';
context.lineWidth = lineWidth;
context.stroke();
}
function drawNewFavicon(progressRatio) {
const canvas = document.createElement('canvas');
const context = canvas.getContext('2d');
drawCircle(canvas, context, '#efefef', loaderWidth, size, 1);
drawCircle(canvas, context, loaderColor, loaderWidth, size, progressRatio);
return canvas.toDataURL();
}
module.exports.updateFavicon = function(progressRatio) {
if (platform() === 'web') {
const link = document.querySelector("link[rel='icon'][sizes='32x32']");
const progress = progressRatio * 100;
if (progress === 0 || progress === 100) {
link.type = 'image/png';
link.href = assets.get('favicon-32x32.png');
return;
}
link.href = drawNewFavicon(progressRatio);
}
};