use vector of strings for locators

src/app.rs

@@ -2539,18 +2539,23 @@ impl UiExtra for egui::Ui {
 }
 
 #[cfg(not(target_arch = "wasm32"))]
-pub fn start(mut data_sources: Vec<Box<dyn DeferredDataSource>>) {
+pub fn start(data_sources: Vec<Box<dyn DeferredDataSource>>) {
     env_logger::try_init().unwrap_or(()); // Log to stderr (if you run with `RUST_LOG=debug`).
 
-    let app_name = if data_sources.len() == 1 {
-        match data_sources[0].fetch_description().source_locator {
-            Some(source_locator) => format!("{source_locator} - Legion Prof"),
-            _ => "Unknown Data Source - Legion Prof".to_string(),
-        }
-    } else {
-        "Unknown Data Source - Legion Prof".to_string()
+    let all_locators = data_sources.iter().fold(Vec::new(), |acc, x| {
+        acc.into_iter()
+            .chain(x.fetch_description().source_locator)
+            .collect()
+    });
+
+    let locator = match &all_locators[..] {
+        [] => "No data source".to_string(),
+        [x] => x.to_string(),
+        [x, ..] => format!("{} and {} other sources", x, all_locators.len() - 1),
     };
 
+    let app_name = format!("{locator} - Legion Prof");
+
     let native_options = eframe::NativeOptions::default();
     eframe::run_native(
         &app_name,

src/data.rs

@@ -208,7 +208,7 @@ pub struct SlotMetaTile {
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct DataSourceDescription {
-    pub source_locator: Option<String>,
+    pub source_locator: Vec<String>,
 }
 
 pub trait DataSource {
@@ -221,7 +221,7 @@ pub trait DataSource {
 }
 
 pub trait DataSourceMut {
-    fn fetch_description(&mut self) -> DataSourceDescription;
+    fn fetch_description(&self) -> DataSourceDescription;
     fn fetch_info(&mut self) -> DataSourceInfo;
     fn fetch_summary_tile(
         &mut self,
@@ -239,7 +239,7 @@ pub trait DataSourceMut {
 }
 
 impl<T: DataSource> DataSourceMut for T {
-    fn fetch_description(&mut self) -> DataSourceDescription {
+    fn fetch_description(&self) -> DataSourceDescription {
         DataSource::fetch_description(self)
     }
     fn fetch_info(&mut self) -> DataSourceInfo {

src/deferred_data.rs

@@ -4,7 +4,7 @@ use crate::data::{
 };
 
 pub trait DeferredDataSource {
-    fn fetch_description(&mut self) -> DataSourceDescription;
+    fn fetch_description(&self) -> DataSourceDescription;
     fn fetch_info(&mut self);
     fn get_infos(&mut self) -> Vec<DataSourceInfo>;
     fn fetch_summary_tile(&mut self, entry_id: &EntryID, tile_id: TileID, full: bool);
@@ -36,7 +36,7 @@ impl<T: DataSourceMut> DeferredDataSourceWrapper<T> {
 }
 
 impl<T: DataSourceMut> DeferredDataSource for DeferredDataSourceWrapper<T> {
-    fn fetch_description(&mut self) -> DataSourceDescription {
+    fn fetch_description(&self) -> DataSourceDescription {
         self.data_source.fetch_description()
     }
 
@@ -108,7 +108,7 @@ impl<T: DeferredDataSource> CountingDeferredDataSource<T> {
 }
 
 impl<T: DeferredDataSource> DeferredDataSource for CountingDeferredDataSource<T> {
-    fn fetch_description(&mut self) -> DataSourceDescription {
+    fn fetch_description(&self) -> DataSourceDescription {
         self.data_source.fetch_description()
     }
 
@@ -155,8 +155,8 @@ impl<T: DeferredDataSource> DeferredDataSource for CountingDeferredDataSource<T>
 }
 
 impl DeferredDataSource for Box<dyn DeferredDataSource> {
-    fn fetch_description(&mut self) -> DataSourceDescription {
-        self.as_mut().fetch_description()
+    fn fetch_description(&self) -> DataSourceDescription {
+        self.as_ref().fetch_description()
     }
 
     fn fetch_info(&mut self) {

src/file_data.rs

@@ -33,7 +33,7 @@ impl FileDataSource {
 impl DataSource for FileDataSource {
     fn fetch_description(&self) -> DataSourceDescription {
         DataSourceDescription {
-            source_locator: Some(String::from(self.basedir.to_string_lossy())),
+            source_locator: vec![String::from(self.basedir.to_string_lossy())],
         }
     }
     fn fetch_info(&self) -> DataSourceInfo {

src/http/client.rs

@@ -64,9 +64,9 @@ impl HTTPClientDataSource {
 }
 
 impl DeferredDataSource for HTTPClientDataSource {
-    fn fetch_description(&mut self) -> DataSourceDescription {
+    fn fetch_description(&self) -> DataSourceDescription {
         DataSourceDescription {
-            source_locator: Some(self.baseurl.to_string()),
+            source_locator: vec![self.baseurl.to_string()],
         }
     }
 

src/main.rs

@@ -268,9 +268,9 @@ impl RandomDataSource {
 }
 
 impl DataSourceMut for RandomDataSource {
-    fn fetch_description(&mut self) -> DataSourceDescription {
+    fn fetch_description(&self) -> DataSourceDescription {
         DataSourceDescription {
-            source_locator: Some(String::from("Random Data Source")),
+            source_locator: vec![String::from("Random Data Source")],
         }
     }
     fn fetch_info(&mut self) -> DataSourceInfo {

src/parallel_data.rs

@@ -27,7 +27,7 @@ impl<T: DataSource + Send + Sync + 'static> ParallelDeferredDataSource<T> {
 }
 
 impl<T: DataSource + Send + Sync + 'static> DeferredDataSource for ParallelDeferredDataSource<T> {
-    fn fetch_description(&mut self) -> DataSourceDescription {
+    fn fetch_description(&self) -> DataSourceDescription {
         self.data_source.fetch_description()
     }