feature: add basic page up/down scrolling (#646)

Adds page up/down scrolling support to respectively scroll up/down by a full page.

Note that this is mostly just to get the feature out for those interested, and is admittedly a bit rushed - I will be rewriting all logic involving event handling as part of state refactor anyways, so this will also get changed in the work done there, and therefore, I kinda just sped through this.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/canvas.rs b/src/canvas.rs
index c8f62640..f19481e0 100644
--- a/src/canvas.rs
+++ b/src/canvas.rs
@@ -695,6 +695,13 @@ impl Painter {
             }
         })?;
 
+        if let Some(updated_current_widget) = app_state
+            .widget_map
+            .get(&app_state.current_widget.widget_id)
+        {
+            app_state.current_widget = updated_current_widget.clone();
+        }
+
         app_state.is_force_redraw = false;
         app_state.is_determining_widget_boundary = false;