Remember last opened file

package.json

@@ -15,6 +15,7 @@
     "@tauri-apps/plugin-dialog": "~2",
     "@tauri-apps/plugin-shell": "^2",
     "@tauri-apps/plugin-sql": "~2",
+    "@tauri-apps/plugin-store": "~2",
     "clusterize.js": "^1.0.0",
     "dayjs": "^1.11.13",
     "vue": "^3.3.4",

pnpm-lock.yaml

@@ -23,6 +23,9 @@ importers:
       '@tauri-apps/plugin-sql':
         specifier: ~2
         version: 2.0.1
+      '@tauri-apps/plugin-store':
+        specifier: ~2
+        version: 2.1.0
       clusterize.js:
         specifier: ^1.0.0
         version: 1.0.0
@@ -443,6 +446,9 @@ packages:
   '@tauri-apps/plugin-sql@2.0.1':
     resolution: {integrity: sha512-SxvRO/qwq/dHHGJ+79Bx4tB/wlfUE44sP1+wpuGOp11fgmfmOaf3nlZAl0P0KX+U3h0rwR/f7PMRQ6Eg408DYQ==}
 
+  '@tauri-apps/plugin-store@2.1.0':
+    resolution: {integrity: sha512-GADqrc17opUKYIAKnGHIUgEeTZ2wJGu1ZITKQ1WMuOFdv8fvXRFBAqsqPjE3opgWohbczX6e1NpwmZK1AnuWVw==}
+
   '@types/clusterize.js@0.18.3':
     resolution: {integrity: sha512-udptC3aq8hfaXgmt9lC73OuE4RJYt26D2XIj+fTNDs0wuzAgQ6cyDpQOSkWhU65NroISAWhZ3/aovvV88IX7Gw==}
 
@@ -1283,6 +1289,10 @@ snapshots:
     dependencies:
       '@tauri-apps/api': 2.1.1
 
+  '@tauri-apps/plugin-store@2.1.0':
+    dependencies:
+      '@tauri-apps/api': 2.1.1
+
   '@types/clusterize.js@0.18.3': {}
 
   '@types/estree@1.0.6': {}

src-tauri/Cargo.lock

@@ -934,6 +934,7 @@ dependencies = [
  "tauri-plugin-dialog",
  "tauri-plugin-shell",
  "tauri-plugin-sql",
+ "tauri-plugin-store",
 ]
 
 [[package]]
@@ -4398,6 +4399,22 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tauri-plugin-store"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e9a580be53f04bb62422d239aa798e88522877f58a0d4a0e745f030055a51bb4"
+dependencies = [
+ "dunce",
+ "log",
+ "serde",
+ "serde_json",
+ "tauri",
+ "tauri-plugin",
+ "thiserror 1.0.69",
+ "tokio",
+]
+
 [[package]]
 name = "tauri-runtime"
 version = "2.2.0"
@@ -4629,10 +4646,22 @@ dependencies = [
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
+ "tokio-macros",
  "tracing",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.87",
+]
+
 [[package]]
 name = "tokio-stream"
 version = "0.1.16"

src-tauri/Cargo.toml

@@ -24,4 +24,5 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 tauri-plugin-dialog = "2"
 tauri-plugin-sql = { version = "2", features = ["sqlite"] }
+tauri-plugin-store = "2"
 

src-tauri/capabilities/default.json

@@ -14,6 +14,7 @@
     "dialog:default",
     "shell:allow-open",
     "sql:default",
-    "sql:allow-execute"
+    "sql:allow-execute",
+    "store:default"
   ]
-}
+}

src-tauri/src/lib.rs

@@ -16,8 +16,10 @@
 	along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
-use tauri::{Builder, Manager, State};
+use tauri::{AppHandle, Builder, Manager, State};
+use tauri_plugin_store::StoreExt;
 
+use std::fs;
 use std::sync::Mutex;
 
 struct AppState {
@@ -31,24 +33,44 @@ fn get_open_filename(state: State<'_, Mutex<AppState>>) -> Option<String> {
 }
 
 #[tauri::command]
-fn set_open_filename(state: State<'_, Mutex<AppState>>, filename: Option<String>) {
+fn set_open_filename(state: State<'_, Mutex<AppState>>, app: AppHandle, filename: Option<String>) {
 	let mut state = state.lock().unwrap();
-	state.db_filename = filename;
+	state.db_filename = filename.clone();
+	
+	// Persist in store
+	let store = app.store("store.json").expect("Error opening store");
+	store.set("db_filename", filename);
 }
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
 	Builder::default()
 		.setup(|app| {
+			// Get open filename
+			let store = app.store("store.json")?;
+			let db_filename = match store.get("db_filename") {
+				None => None,
+				Some(serde_json::Value::String(s)) => {
+					if fs::exists(&s)? {
+						Some(s)
+					} else {
+						None
+					}
+				},
+				_ => panic!("Unexpected db_filename in store")
+			};
+			
 			app.manage(Mutex::new(AppState {
-				db_filename: None
+				db_filename: db_filename
 			}));
+			
 			Ok(())
 		})
 		.plugin(tauri_plugin_dialog::init())
 		.plugin(tauri_plugin_shell::init())
 		.plugin(tauri_plugin_sql::Builder::new().build())
+		.plugin(tauri_plugin_store::Builder::new().build())
 		.invoke_handler(tauri::generate_handler![get_open_filename, set_open_filename])
 		.run(tauri::generate_context!())
-		.expect("error while running tauri application");
+		.expect("Error while running tauri application");
 }