画布图片预览

src/components/Canvas/tools/tools.ts

@@ -2,4 +2,17 @@ export const createId = (before: string = 'node') => {
 	const time = Date.now().toString(36)
 	const random = Math.random().toString(36).substring(2, 20)
 	return `${before}_${time}${random}`
+}
+
+/** 下载图片 */
+export const downloadImage = (url: string, name: string) => {
+	fetch(url)
+		.then((res) => res.blob())
+		.then((blob) => {
+			const a = document.createElement('a')
+			a.href = URL.createObjectURL(blob)
+			a.target = '_blank'
+			a.download = name || 'image.png'
+			a.click()
+		})
 }