Fix tray icon unwrap, clean up store timeouts, fix passphrase dialog UX

- Replace unwrap() on default_window_icon with expect() for clear panic message
- Clear debounce timeout in status store stopListening() to prevent leaks
- Add cleanup() to disks store to clear unmount timeout, called on destroy
- Keep passphrase dialog open while mounting instead of close/reopen flicker
- Add submitting state to PassphraseDialog with disabled inputs and loading text

Author: fenio

src-tauri/src/lib.rs

@@ -110,7 +110,7 @@ pub fn run() {
                 .build()?;
 
             let _tray = TrayIconBuilder::new()
-                .icon(app.default_window_icon().unwrap().clone())
+                .icon(app.default_window_icon().expect("default window icon must be set in tauri.conf.json").clone())
                 .icon_as_template(true)
                 .menu(&menu)
                 .on_tray_icon_event(|tray, event| {

src/components/DiskList.svelte

@@ -54,6 +54,7 @@
 
 		return () => {
 			unlisten.then((fn) => fn());
+			disks.cleanup();
 		};
 	});
 
@@ -78,14 +79,18 @@
 			const device = passphraseDevice;
 			const ro = passphraseReadOnly;
 			const extra = passphraseExtraOptions;
-			passphraseDevice = null; // Close dialog while mounting
 			const result = await disks.mount(device, passphrase, ro, extra);
 			if (result === 'success') {
+				passphraseDevice = null;
+				passphraseError = null;
 				status.refresh();
 			} else if (result === 'encryption_required') {
-				// Wrong passphrase — re-show dialog with error
-				passphraseDevice = device;
+				// Wrong passphrase — keep dialog open with error
 				passphraseError = 'Incorrect passphrase. Please try again.';
+			} else {
+				// Other error — close dialog, error shown in main banner
+				passphraseDevice = null;
+				passphraseError = null;
 			}
 		} finally {
 			submittingPassphrase = false;
@@ -237,6 +242,7 @@
 	<PassphraseDialog
 		device={passphraseDevice}
 		errorMessage={passphraseError}
+		submitting={submittingPassphrase}
 		onSubmit={handlePassphraseSubmit}
 		onCancel={handlePassphraseCancel}
 	/>

src/components/PassphraseDialog.svelte

@@ -2,11 +2,12 @@
 	interface Props {
 		device: string;
 		errorMessage?: string | null;
+		submitting?: boolean;
 		onSubmit: (passphrase: string) => void;
 		onCancel: () => void;
 	}
 
-	let { device, errorMessage = null, onSubmit, onCancel }: Props = $props();
+	let { device, errorMessage = null, submitting = false, onSubmit, onCancel }: Props = $props();
 
 	let passphrase = $state('');
 	let showPassphrase = $state(false);
@@ -20,11 +21,8 @@
 
 	function handleSubmit(e: Event) {
 		e.preventDefault();
-		if (passphrase.trim()) {
-			const value = passphrase;
-			passphrase = '';
-			showPassphrase = false;
-			onSubmit(value);
+		if (passphrase.trim() && !submitting) {
+			onSubmit(passphrase);
 		}
 	}
 
@@ -65,6 +63,7 @@
 						autocomplete="off"
 						autocorrect="off"
 						spellcheck="false"
+						disabled={submitting}
 					/>
 					<button
 						type="button"
@@ -78,13 +77,13 @@
 			</form>
 		</div>
 		<div class="dialog-footer">
-			<button class="btn-secondary" onclick={handleCancel}>Cancel</button>
+			<button class="btn-secondary" onclick={handleCancel} disabled={submitting}>Cancel</button>
 			<button
 				class="btn-primary"
 				onclick={handleSubmit}
-				disabled={!passphrase.trim()}
+				disabled={!passphrase.trim() || submitting}
 			>
-				Mount
+				{submitting ? 'Mounting...' : 'Mount'}
 			</button>
 		</div>
 	</div>

src/lib/stores/disks.ts

@@ -138,6 +138,12 @@ function createDisksStore() {
 		},
 		clearMounting() {
 			update((s) => ({ ...s, mountingDevice: null }));
+		},
+		cleanup() {
+			if (unmountTimeout) {
+				clearTimeout(unmountTimeout);
+				unmountTimeout = null;
+			}
 		}
 	};
 }

src/lib/stores/status.ts

@@ -97,6 +97,10 @@ function createStatusStore() {
 			pollInterval = setInterval(() => this.refresh(), FALLBACK_POLL_INTERVAL);
 		},
 		stopListening() {
+			if (debounceTimeout) {
+				clearTimeout(debounceTimeout);
+				debounceTimeout = null;
+			}
 			if (unlisten) {
 				unlisten();
 				unlisten = null;