fix: handle vault unlock modal cancellation gracefully (#11356)

locale/app.pot

@@ -2260,6 +2260,10 @@ msgstr ""
 msgid "Thank you for downloading Tabby!"
 msgstr ""
 
+#: tabby-core/src/services/config.service.ts:471
+msgid "The vault must be unlocked to load your configuration."
+msgstr ""
+
 #: locale/tmp-html/tabby-settings/src/components/windowSettingsTab.component.html:5
 msgid "Theme"
 msgstr ""

tabby-core/src/services/config.service.ts

@@ -466,6 +466,24 @@ export class ConfigService {
                 decryptedVault = await this.vault.decrypt(store.vault, passphrase)
                 break
             } catch (e) {
+                if (e.toString().includes('Vault unlock cancelled')) {
+                    const cancelResult = await this.platform.showMessageBox({
+                        type: 'warning',
+                        message: this.translate.instant('Vault is locked'),
+                        detail: this.translate.instant('The vault must be unlocked to load your configuration.'),
+                        buttons: [
+                            this.translate.instant('Try again'),
+                            this.translate.instant('Quit'),
+                        ],
+                        defaultId: 0,
+                        cancelId: 1,
+                    })
+                    if (cancelResult.response === 1) {
+                        this.platform.quit()
+                        return {}
+                    }
+                    continue
+                }
                 let result = await this.platform.showMessageBox({
                     type: 'error',
                     message: this.translate.instant('Could not decrypt config'),

tabby-core/src/services/vault.service.ts

@@ -178,7 +178,11 @@ export class VaultService {
     async getPassphrase (): Promise<string> {
         if (!_rememberedPassphrase) {
             const modal = this.ngbModal.open(UnlockVaultModalComponent)
-            const { passphrase, rememberFor } = await modal.result
+            const result = await modal.result.catch(() => null)
+            if (!result) {
+                throw new Error('Vault unlock cancelled')
+            }
+            const { passphrase, rememberFor } = result
             setTimeout(() => {
                 _rememberedPassphrase = null
                 // avoid multiple consequent prompts