Initial commit

app/javascript/packs/upload_file.js

@@ -0,0 +1,55 @@
+import {BlobRecord} from "activestorage/src/blob_record";
+import {FileChecksum} from "activestorage/src/file_checksum";
+import $ from 'jquery';
+
+const uploadFile = (file, uploader, input, callback, blobRecordClass, fileChecksumClass) => {
+  const BlobRecordClass = blobRecordClass || BlobRecord
+  const FileChecksumClass = fileChecksumClass || FileChecksum
+
+  uploader.then((evaporate) => {
+    var url = input.data("directUploadUrl");
+
+    FileChecksumClass.create(file, function (error, checksum) {
+      var blob = new BlobRecordClass(file, checksum, url)
+      blob.create(function (error) {
+        const hiddenField = input
+          .attr("type", "hidden")
+          .attr("value", blob.attributes.signed_id)
+          .attr(name, input.name);
+        $("form").append(hiddenField);
+
+        evaporate.add({
+          file: file,
+          name: blob.attributes.key,
+          progress: (percent, stats) => {
+            if (App.FileUploadProgress._findProgressBar(blob.attributes.key)) {
+              App.FileUploadProgress.updateProgressBar(blob.attributes.key, percent * 100);
+            }
+          },
+          complete: (xhr, awsObjectKey) => {
+            App.FileUploadProgress.removeProgressBar(blob.attributes.key)
+            callback();
+          },
+          error: (mssg) => {
+            App.FileUploadProgress.showError(blob.attributes.key, error);
+          },
+          paused: () => {},
+          pausing: () => {},
+          resumed: () => {},
+          cancelled: () => {},
+          started: (fileKey) => {
+            const progressBar = App.FileUploadProgress.createProgressBar(blob.attributes.key);
+            input.parents("form").after(progressBar);
+            App.FileUploadProgress.showProgressBar(blob.attributes.key);
+          },
+          uploadInitiated: (s3Id) => {},
+          warn: (mssg) => {}
+        })
+      });
+    });
+  });
+}
+
+export default uploadFile;
+
+window.uploadFile = uploadFile;