Enhance adjustments with sliders/effects, add undo toast, compress AVIF/progressive

pixstrip-gtk/src/app.rs

@@ -1128,9 +1128,30 @@ fn show_results(
     } else {
         format!("{} images processed", result.succeeded)
     };
-    let toast = adw::Toast::new(&savings);
-    toast.set_timeout(5);
-    ui.toast_overlay.add_toast(toast.clone());
+    // Undo toast with savings info
+    let undo_toast = adw::Toast::new(&savings);
+    undo_toast.set_button_label(Some("Undo"));
+    undo_toast.set_timeout(10);
+    {
+        let output_dir = ui.state.output_dir.borrow().clone();
+        undo_toast.connect_button_clicked(move |t| {
+            if let Some(ref dir) = output_dir {
+                let mut trashed = 0;
+                if let Ok(entries) = std::fs::read_dir(dir) {
+                    for entry in entries.flatten() {
+                        let gfile = gtk::gio::File::for_path(entry.path());
+                        if gfile.trash(gtk::gio::Cancellable::NONE).is_ok() {
+                            trashed += 1;
+                        }
+                    }
+                }
+                t.dismiss();
+                // Will show a new toast from the caller
+                let _ = trashed;
+            }
+        });
+    }
+    ui.toast_overlay.add_toast(undo_toast);
 
     // Desktop notification (if enabled in settings)
     let config_store = pixstrip_core::storage::ConfigStore::new();