web: preserve checked boxes on search refresh

web/src/state.rs

@@ -291,12 +291,29 @@ pub fn update(msg: Msg, model: &mut Model, orders: &mut impl Orders<Msg>) {
                     })
                     .collect(),
             );
+            info!("pager {:#?}", data.search.page_info);
+            let selected_threads = 'context: {
+                if let Context::SearchResult {
+                    results,
+                    selected_threads,
+                    ..
+                } = &model.context
+                {
+                    let old: HashSet<_> = results.iter().map(|n| &n.thread).collect();
+                    let new: HashSet<_> = data.search.nodes.iter().map(|n| &n.thread).collect();
+
+                    if old == new {
+                        break 'context selected_threads.clone();
+                    }
+                }
+                HashSet::new()
+            };
             model.context = Context::SearchResult {
                 query: model.query.clone(),
                 results: data.search.nodes,
                 count: data.count as usize,
                 pager: data.search.page_info,
-                selected_threads: HashSet::new(),
+                selected_threads,
             };
         }