timeline: add simple hashtag timeline constructor

Useful for adding hashtag timelines manually without the
into_timeline thing

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

src/timeline/kind.rs

@@ -129,18 +129,7 @@ impl TimelineKind {
                 ))
             }
 
-            TimelineKind::Hashtag(hashtag) => {
-                let filter = Filter::new()
-                    .kinds([1])
-                    .limit(filter::default_limit())
-                    .tags([hashtag.clone()], 't')
-                    .build();
-
-                Some(Timeline::new(
-                    TimelineKind::Hashtag(hashtag),
-                    FilterState::ready(vec![filter]),
-                ))
-            }
+            TimelineKind::Hashtag(hashtag) => Some(Timeline::hashtag(hashtag)),
 
             TimelineKind::List(ListKind::Contact(pk_src)) => {
                 let pk = match &pk_src {

src/timeline/mod.rs

@@ -207,6 +207,19 @@ impl Timeline {
         ))
     }
 
+    pub fn hashtag(hashtag: String) -> Self {
+        let filter = Filter::new()
+            .kinds([1])
+            .limit(filter::default_limit())
+            .tags([hashtag.clone()], 't')
+            .build();
+
+        Timeline::new(
+            TimelineKind::Hashtag(hashtag),
+            FilterState::ready(vec![filter]),
+        )
+    }
+
     pub fn make_view_id(id: TimelineId, selected_view: i32) -> egui::Id {
         egui::Id::new((id, selected_view))
     }