49 lines
1.5 KiB
JavaScript
49 lines
1.5 KiB
JavaScript
const { platform } = require('../utils');
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const assets = require('../../common/assets');
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module.exports.updateFavicon = function(percentageString) {
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if (platform() === 'web') {
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const percentage = parseInt(percentageString.replace('%', ''));
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if (percentage === 0 || percentage === 100) {
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const link = document.querySelector("link[rel*='icon']");
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link.type = 'image/png';
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link.href = assets.get('favicon-32x32.png');
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document.getElementsByTagName('head')[0].appendChild(link);
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return;
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}
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const link = document.querySelector("link[rel*='icon']");
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const canvas = document.createElement('canvas');
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const size = 32;
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const lineWidth = 5;
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const color = '#0090ed';
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const span = document.createElement('span');
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span.textContent = percentageString;
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const context = canvas.getContext('2d');
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canvas.width = canvas.height = size;
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context.translate(size / 2, size / 2);
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const radius = (size - lineWidth) / 2;
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const drawCircle = function(color, lineWidth, percent) {
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context.beginPath();
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context.arc(0, 0, radius, 0, Math.PI * 2 * percent, false);
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context.strokeStyle = color;
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context.lineCap = 'square';
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context.lineWidth = lineWidth;
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context.stroke();
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};
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const drawNewFavicon = function() {
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drawCircle('#efefef', lineWidth, 100 / 100);
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drawCircle(color, lineWidth, percentage / 100);
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};
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drawNewFavicon(link);
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link.href = canvas.toDataURL();
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document.getElementsByTagName('head')[0].appendChild(link);
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}
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};
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