feat: select directory to save last book cover image (#2521)

apps/readest-app/src-tauri/plugins/tauri-plugin-native-bridge/src/commands.rs

@@ -157,6 +157,13 @@ pub(crate) async fn open_external_url<R: Runtime>(
     app.native_bridge().open_external_url(payload)
 }
 
+#[command]
+pub(crate) async fn select_directory<R: Runtime>(
+    app: AppHandle<R>,
+) -> Result<SelectDirectoryResponse> {
+    app.native_bridge().select_directory()
+}
+
 #[command]
 pub(crate) async fn request_manage_storage_permission<R: Runtime>(
     app: AppHandle<R>,

apps/readest-app/src-tauri/plugins/tauri-plugin-native-bridge/src/desktop.rs

@@ -129,6 +129,10 @@ impl<R: Runtime> NativeBridge<R> {
         Err(crate::Error::UnsupportedPlatformError)
     }
 
+    pub fn select_directory(&self) -> crate::Result<SelectDirectoryResponse> {
+        Err(crate::Error::UnsupportedPlatformError)
+    }
+
     pub fn request_manage_storage_permission(
         &self,
     ) -> crate::Result<RequestManageStoragePermissionResponse> {

apps/readest-app/src-tauri/plugins/tauri-plugin-native-bridge/src/lib.rs

@@ -57,6 +57,7 @@ pub fn init<R: Runtime>() -> TauriPlugin<R> {
             commands::set_screen_brightness,
             commands::get_external_sdcard_path,
             commands::open_external_url,
+            commands::select_directory,
             commands::request_manage_storage_permission,
         ])
         .setup(|app, api| {

apps/readest-app/src-tauri/plugins/tauri-plugin-native-bridge/src/mobile.rs

@@ -208,6 +208,14 @@ impl<R: Runtime> NativeBridge<R> {
     }
 }
 
+impl<R: Runtime> NativeBridge<R> {
+    pub fn select_directory(&self) -> crate::Result<SelectDirectoryResponse> {
+        self.0
+            .run_mobile_plugin("select_directory", ())
+            .map_err(Into::into)
+    }
+}
+
 impl<R: Runtime> NativeBridge<R> {
     pub fn request_manage_storage_permission(
         &self,

apps/readest-app/src-tauri/plugins/tauri-plugin-native-bridge/src/models.rs

@@ -215,3 +215,12 @@ pub struct OpenExternalUrlResponse {
     pub success: bool,
     pub error: Option<String>,
 }
+
+#[derive(Debug, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct SelectDirectoryResponse {
+    pub cancelled: Option<bool>,
+    pub uri: Option<String>,
+    pub path: Option<String>,
+    pub error: Option<String>,
+}