Prevent app from crashing when cancelling save PDF dialog

Author: Marcin Mazurek

source/renderer/app/stores/VotingStore.ts

@@ -424,7 +424,7 @@ export default class VotingStore extends Store {
     const intl = i18nContext(currentLocale);
 
     try {
-      await votingPDFGenerator({
+      const wasSaved = await votingPDFGenerator({
         nextVotingFundNumber,
         qrCode,
         walletName,
@@ -437,7 +437,10 @@ export default class VotingStore extends Store {
         intl,
       });
       // @ts-ignore ts-migrate(2554) FIXME: Expected 1 arguments, but got 0.
-      this.actions.voting.saveAsPDFSuccess.trigger();
+
+      if (wasSaved) {
+        this.actions.voting.saveAsPDFSuccess.trigger();
+      }
     } catch (error) {
       throw new Error(error);
     }

source/renderer/app/utils/votingPDFGenerator.ts

@@ -57,7 +57,7 @@ export const votingPDFGenerator = async ({
   network,
   isMainnet,
   intl,
-}: Params) => {
+}: Params): Promise<boolean> => {
   // Consolidate data
   const title = intl.formatMessage(messages.title, {
     nextVotingFundNumber,
@@ -93,6 +93,11 @@ export const votingPDFGenerator = async ({
   };
   const dialogPath = await showSaveDialogChannel.send(params);
   const filePath = dialogPath.filePath || '';
+
+  if (dialogPath.canceled || !!filePath) {
+    return false;
+  }
+
   await generateVotingPDFChannel.send({
     title,
     currentLocale,
@@ -106,4 +111,6 @@ export const votingPDFGenerator = async ({
     filePath,
     author,
   });
+
+  return true;
 };