Initial commit

public/assets/js/worker/jimp.js

@@ -0,0 +1,38 @@
+importScripts('https://cdn.jsdelivr.net/npm/jimp@0.16.0/browser/lib/jimp.js');
+
+self.addEventListener('message', function (e) {
+  // e.data => dataURL
+  Jimp.read(e.data)
+    .then(image => {
+      var width = image.bitmap.width
+      if (width > 900) {
+        width = 900
+      }
+
+      image
+        .resize(width, Jimp.AUTO)
+        .quality(60)
+        .getBase64Async(Jimp.MIME_JPEG)
+        .then((dataURL) => {
+          res = {
+            stts: true,
+            data: dataURL // base64
+          }
+          self.postMessage(res)
+        })
+        .catch(err => {
+          res = {
+            stts: false,
+            data: err
+          }
+          self.postMessage(res)
+        })
+    })
+    .catch(err => {
+      res = {
+        stts: false,
+        data: err
+      }
+      self.postMessage(res)
+    })
+})