note/action: add ScrollInfo

I might need this... lets add it just in case

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

crates/notedeck/src/lib.rs

@@ -51,7 +51,7 @@ pub use muted::{MuteFun, Muted};
 pub use name::NostrName;
 pub use note::{
     BroadcastContext, ContextSelection, NoteAction, NoteContext, NoteContextSelection, NoteRef,
-    RootIdError, RootNoteId, RootNoteIdBuf, ZapAction,
+    RootIdError, RootNoteId, RootNoteIdBuf, ScrollInfo, ZapAction,
 };
 pub use notecache::{CachedNote, NoteCache};
 pub use persist::*;

crates/notedeck/src/note/action.rs

@@ -1,8 +1,15 @@
 use super::context::ContextSelection;
 use crate::{zaps::NoteZapTargetOwned, Images, MediaCacheType, TexturedImage};
+use egui::Vec2;
 use enostr::{NoteId, Pubkey};
 use poll_promise::Promise;
 
+#[derive(Debug)]
+pub struct ScrollInfo {
+    pub velocity: Vec2,
+    pub offset: Vec2,
+}
+
 #[derive(Debug)]
 pub enum NoteAction {
     /// User has clicked the quote reply action
@@ -28,6 +35,9 @@ pub enum NoteAction {
 
     /// User clicked on media
     Media(MediaAction),
+
+    /// User scrolled the timeline
+    Scroll(ScrollInfo),
 }
 
 impl NoteAction {

crates/notedeck/src/note/mod.rs

@@ -1,7 +1,7 @@
 mod action;
 mod context;
 
-pub use action::{MediaAction, NoteAction, ZapAction, ZapTargetAmount};
+pub use action::{MediaAction, NoteAction, ScrollInfo, ZapAction, ZapTargetAmount};
 pub use context::{BroadcastContext, ContextSelection, NoteContextSelection};
 
 use crate::JobPool;

crates/notedeck_columns/src/actionbar.rs

@@ -59,6 +59,10 @@ fn execute_note_action(
     let mut router_action = None;
 
     match action {
+        NoteAction::Scroll(ref scroll_info) => {
+            tracing::trace!("timeline scroll {scroll_info:?}")
+        }
+
         NoteAction::Reply(note_id) => {
             router_action = Some(RouterAction::route_to(Route::reply(note_id)));
         }

crates/notedeck_columns/src/ui/timeline.rs

@@ -8,7 +8,7 @@ use std::f32::consts::PI;
 use tracing::{error, warn};
 
 use crate::timeline::{TimelineCache, TimelineKind, TimelineTab, ViewFilter};
-use notedeck::{note::root_note_id_from_selected_id, MuteFun, NoteAction, NoteContext};
+use notedeck::{note::root_note_id_from_selected_id, MuteFun, NoteAction, NoteContext, ScrollInfo};
 use notedeck_ui::{
     anim::{AnimationHelper, ICON_EXPANSION_MULTIPLE},
     show_pointer, NoteOptions, NoteView,
@@ -184,7 +184,18 @@ fn timeline_ui(
             .data_mut(|d| d.insert_temp(show_top_button_id, true));
     }
 
-    scroll_output.inner
+    scroll_output.inner.or_else(|| {
+        // if we're scrolling, return that as a response. We need this
+        // for auto-closing the side menu
+
+        let velocity = scroll_output.state.velocity();
+        let offset = scroll_output.state.offset;
+        if velocity.length_sq() > 0.0 {
+            Some(NoteAction::Scroll(ScrollInfo { velocity, offset }))
+        } else {
+            None
+        }
+    })
 }
 
 fn goto_top_button(center: Pos2) -> impl egui::Widget {