hashtags working

Signed-off-by: William Casarin <jb55@jb55.com>

damus/Views/SearchView.swift

@@ -10,17 +10,31 @@ import SwiftUI
 struct SearchView: View {
     let appstate: DamusState
     @StateObject var search: SearchModel
+    @Environment(\.dismiss) var dismiss
     
     var body: some View {
         TimelineView(events: $search.events, damus: appstate)
-        .padding([.leading, .trailing], 6)
-        .onAppear() {
-            search.subscribe()
-        }
-        .onDisappear() {
-            search.unsubscribe()
+            .navigationBarTitle(describe_search(search.search))
+            .padding([.leading, .trailing], 6)
+            .onReceive(handle_notify(.switched_timeline)) { obj in
+                dismiss()
+            }
+            .onAppear() {
+                search.subscribe()
+            }
+            .onDisappear() {
+                search.unsubscribe()
+            }
+    }
+}
+
+func describe_search(_ filter: NostrFilter) -> String {
+    if let hashtags = filter.hashtag {
+        if hashtags.count >= 1 {
+            return "#" + hashtags[0]
         }
     }
+    return "Search"
 }
 
 /*