fix: save columns on removal

Fixes: https://github.com/damus-io/notedeck/issues/432
Signed-off-by: William Casarin <jb55@jb55.com>

src/app.rs

@@ -513,8 +513,6 @@ fn update_damus(damus: &mut Damus, ctx: &egui::Context) {
     }
 
     damus.app_rect_handler.try_save_app_size(ctx);
-
-    damus.columns.attempt_perform_deletion_request();
 }
 
 fn process_event(damus: &mut Damus, _subid: &str, event: &str) {

src/column.rs

@@ -61,7 +61,6 @@ pub struct Columns {
 
     /// The selected column for key navigation
     selected: i32,
-    should_delete_column_at_index: Option<usize>,
 }
 static UIDS: AtomicU32 = AtomicU32::new(0);
 
@@ -207,22 +206,15 @@ impl Columns {
         self.selected += 1;
     }
 
-    pub fn request_deletion_at_index(&mut self, index: usize) {
-        self.should_delete_column_at_index = Some(index);
-    }
+    pub fn delete_column(&mut self, index: usize) {
+        if let Some((key, _)) = self.columns.get_index_mut(index) {
+            self.timelines.shift_remove(key);
+        }
 
-    pub fn attempt_perform_deletion_request(&mut self) {
-        if let Some(index) = self.should_delete_column_at_index {
-            if let Some((key, _)) = self.columns.get_index_mut(index) {
-                self.timelines.shift_remove(key);
-            }
+        self.columns.shift_remove_index(index);
 
-            self.columns.shift_remove_index(index);
-            self.should_delete_column_at_index = None;
-
-            if self.columns.is_empty() {
-                self.new_column_picker();
-            }
+        if self.columns.is_empty() {
+            self.new_column_picker();
         }
     }
 

src/nav.rs

@@ -205,11 +205,12 @@ pub fn render_nav(col: usize, app: &mut Damus, ui: &mut egui::Ui) -> bool {
     if let Some(title_response) = nav_response.title_response {
         match title_response {
             TitleResponse::RemoveColumn => {
-                app.columns_mut().request_deletion_at_index(col);
                 let tl = app.columns().find_timeline_for_column_index(col);
                 if let Some(timeline) = tl {
                     unsubscribe_timeline(app.ndb(), timeline);
                 }
+                app.columns_mut().delete_column(col);
+                col_changed = true;
             }
         }
     }