Adding missing file

2026-08-28 19:27:15 +00:00 · 2019-04-23 21:58:33 -05:00
parent 4fb8d09a01
commit e69e8101a7
1 changed files with 65 additions and 0 deletions
@@ -0,0 +1,65 @@
+import React from 'react';
+import Base from './base';
+
+export default class Donut extends Base {
+    state = {
+        currentPercent: 0,
+        currentPercent2: 0,
+    };
+
+    constructor(props) {
+        super(props);
+        requestAnimationFrame(() => this.animate());
+    }
+
+    componentWillUnmount() {
+        this.unmounted = true;
+    }
+
+    componentDidUpdate(prevProps) {
+        if (this.animationQueued) return;
+
+        const {percent, percent2} = this.props;
+        if (prevProps.percent !== percent || prevProps.percent2 !== percent2) {
+            this.animate();
+        }
+    }
+
+    animate() {
+        this.animationQueued = false;
+        if (this.unmounted) return;
+
+        const {percent = 0, percent2 = 0} = this.props;
+        const {currentPercent = 0, currentPercent2 = 0} = this.state;
+
+        if (currentPercent === percent && currentPercent2 === percent2) return;
+
+        const next1 = getNextStep(percent, currentPercent);
+        const next2 = getNextStep(percent2, currentPercent2);
+        this.setState({currentPercent: next1, currentPercent2: next2});
+
+        this.animationQueued = true;
+        requestAnimationFrame(() => this.animate());
+    }
+
+    render() {
+        const {currentPercent, currentPercent2} = this.state;
+        const percent = currentPercent * 100;
+        const percent2 = currentPercent2 * 100;
+
+        return (
+            <svg className='donut' xmlns='http://www.w3.org/2000/svg' viewBox="0 0 42 42" width='100%' height='100%'>
+                <circle className='donut_background' cx='21' cy='21' r='16'></circle>
+                <circle className='donut_layer1' cx='21' cy='21' r='16' strokeDasharray={`${percent} ${100 - percent}`} strokeDashoffset="25"></circle>
+                <circle className='donut_layer2' cx='21' cy='21' r='16' strokeDasharray={`${percent2} ${100 - percent2}`} strokeDashoffset={25 + (100 - percent)}></circle>
+            </svg>
+        );
+    }
+}
+
+function getNextStep(target, current) {
+    const diff = current - target;
+    const absDiff = Math.abs(diff);
+    const change = Math.min(absDiff, 0.02);
+    return diff > 0 ? current - change : current + change;
+}