moved saveFile from utils to fileReceiver

app/fileManager.js

@@ -5,8 +5,7 @@ import {
   delay,
   fadeOut,
   openLinksInNewTab,
-  percent,
-  saveFile
+  percent
 } from './utils';
 import * as metrics from './metrics';
 
@@ -170,12 +169,11 @@ export default function(state, emitter) {
     try {
       const start = Date.now();
       metrics.startedDownload({ size: file.size, ttl: file.ttl });
-      const f = await state.transfer.download();
+      await state.transfer.download();
       const time = Date.now() - start;
       const speed = size / (time / 1000);
       await delay(1000);
       await fadeOut('.page');
-      saveFile(f);
       state.storage.totalDownloads += 1;
       state.transfer.reset();
       metrics.completedDownload({ size, time, speed });

app/fileReceiver.js

@@ -78,16 +78,44 @@ export default class FileReceiver extends Nanobus {
       if (this.cancelled) {
         throw new Error(0);
       }
-      this.msg = 'downloadFinish';
-      this.state = 'complete';
-      return {
+      await saveFile({
         plaintext,
         name: decodeURIComponent(this.fileInfo.name),
         type: this.fileInfo.type
-      };
+      });
+      this.msg = 'downloadFinish';
+      this.state = 'complete';
+      return;
     } catch (e) {
       this.state = 'invalid';
       throw e;
     }
   }
 }
+
+async function saveFile(file) {
+  return new Promise(function(resolve, reject) {
+    const reader = new FileReader();
+    const dataView = new DataView(file.plaintext);
+    const blob = new Blob([dataView], { type: file.type });
+
+    if (window.navigator.msSaveBlob) {
+      window.navigator.msSaveBlob(blob, file.name);
+      return resolve();
+    }
+    reader.addEventListener('loadend', function() {
+      if (reader.error) {
+        return reject(reader.error);
+      }
+      if (reader.result) {
+        const a = document.createElement('a');
+        a.href = reader.result;
+        a.download = file.name;
+        document.body.appendChild(a);
+        a.click();
+      }
+      resolve();
+    });
+    reader.readAsDataURL(blob);
+  });
+}

app/utils.js

@@ -141,32 +141,6 @@ function fadeOut(selector) {
   return delay(300);
 }
 
-function saveFile(file) {
-  const reader = new FileReader();
-  const dataView = new DataView(file.plaintext);
-  const blob = new Blob([dataView], { type: file.type });
-
-  if (window.navigator.msSaveBlob) {
-    return window.navigator.msSaveBlob(blob, file.name);
-  }
-  reader.addEventListener('loadend', function() {
-    if (reader.result) {
-      const a = document.createElement('a');
-      a.href = reader.result;
-      a.download = file.name;
-      document.body.appendChild(a);
-      a.click();
-      return;
-    }
-    if (reader.error) {
-      console.error(reader.error);
-      window.location.href = '/error';
-      //TODO
-    }
-  });
-  reader.readAsDataURL(blob);
-}
-
 function openLinksInNewTab(links, should = true) {
   links = links || Array.from(document.querySelectorAll('a:not([target])'));
   if (should) {
@@ -195,6 +169,5 @@ module.exports = {
   b64ToArray,
   canHasSend,
   isFile,
-  saveFile,
   openLinksInNewTab
 };