fix: files download in mobile webview (#1726)

packages/web/src/javascripts/Controllers/FilesController.ts

@@ -20,6 +20,7 @@ import { action, makeObservable, observable, reaction } from 'mobx'
 import { WebApplication } from '../Application/Application'
 import { AbstractViewController } from './Abstract/AbstractViewController'
 import { NotesController } from './NotesController'
+import { downloadOrShareBlobBasedOnPlatform } from '@/Utils/DownloadOrShareBasedOnPlatform'
 
 const UnprotectedFileActions = [PopoverFileItemActionType.ToggleFileProtection]
 const NonMutatingFileActions = [PopoverFileItemActionType.DownloadFile, PopoverFileItemActionType.PreviewFile]
@@ -267,7 +268,10 @@ export class FilesController extends AbstractViewController {
         await saver.finish()
       } else {
         const finalBytes = concatenateUint8Arrays(decryptedBytesArray)
-        saver.saveFile(file.name, finalBytes)
+        const blob = new Blob([finalBytes], {
+          type: file.mimeType,
+        })
+        await downloadOrShareBlobBasedOnPlatform(this.application, blob, file.name, false)
       }
 
       addToast({

packages/web/src/javascripts/NativeMobileWeb/DownloadBlobOnAndroid.tsx

@@ -3,18 +3,31 @@ import { getBase64FromBlob } from '@/Utils'
 import { Platform } from '@standardnotes/snjs'
 import { addToast, ToastType, dismissToast } from '@standardnotes/toast'
 
-export const downloadBlobOnAndroid = async (application: WebApplication, blob: Blob, filename: string) => {
+export const downloadBlobOnAndroid = async (
+  application: WebApplication,
+  blob: Blob,
+  filename: string,
+  showToast = true,
+) => {
   if (!application.isNativeMobileWeb() || application.platform !== Platform.Android) {
     throw new Error('Download function being used on non-android platform')
   }
-  const loadingToastId = addToast({
-    type: ToastType.Loading,
-    message: `Downloading ${filename}..`,
-  })
+  let loadingToastId: string | undefined
+  if (showToast) {
+    loadingToastId = addToast({
+      type: ToastType.Loading,
+      message: `Downloading ${filename}..`,
+    })
+  }
   const base64 = await getBase64FromBlob(blob)
   const downloaded = await application.mobileDevice.downloadBase64AsFile(base64, filename)
-  if (downloaded) {
+  if (loadingToastId) {
     dismissToast(loadingToastId)
+  }
+  if (!showToast) {
+    return
+  }
+  if (downloaded) {
     addToast({
       type: ToastType.Success,
       message: `Downloaded ${filename}`,

packages/web/src/javascripts/Utils/DownloadOrShareBasedOnPlatform.ts

@@ -3,7 +3,12 @@ import { downloadBlobOnAndroid } from '@/NativeMobileWeb/DownloadBlobOnAndroid'
 import { shareBlobOnMobile } from '@/NativeMobileWeb/ShareBlobOnMobile'
 import { Platform } from '@standardnotes/snjs'
 
-export const downloadOrShareBlobBasedOnPlatform = async (application: WebApplication, blob: Blob, filename: string) => {
+export const downloadOrShareBlobBasedOnPlatform = async (
+  application: WebApplication,
+  blob: Blob,
+  filename: string,
+  showToastOnAndroid = true,
+) => {
   if (!application.isNativeMobileWeb()) {
     application.getArchiveService().downloadData(blob, filename)
     return
@@ -15,7 +20,7 @@ export const downloadOrShareBlobBasedOnPlatform = async (application: WebApplica
   }
 
   if (application.platform === Platform.Android) {
-    downloadBlobOnAndroid(application, blob, filename)
+    downloadBlobOnAndroid(application, blob, filename, showToastOnAndroid)
     return
   }
 }