Publish in-progress navigation source and independent canvas reviews

crates/oa-desktop/src/behavior/topology.rs

@@ -5,6 +5,7 @@ use iced::widget::{Column, text_input};
 use std::collections::BTreeSet;
 pub(crate) mod contextual;
 mod direct;
+mod usages;
 mod view;
 use direct::Input;
 pub(crate) use direct::{
@@ -986,6 +987,7 @@ struct Graph<'a> {
     ordered: bool,
     size: Size,
     selected: Id,
+    selected_preview: Option<OccurrenceEndpoint>,
     scale: f32,
 }
 impl<'a> Graph<'a> {
@@ -1319,6 +1321,7 @@ impl<'a> Graph<'a> {
             ordered: !order.is_empty(),
             size,
             selected,
+            selected_preview: None,
             scale: 1.,
         }
     }
@@ -1577,10 +1580,25 @@ impl canvas::Program<Message> for Graph<'_> {
                             }
                             for (id, name) in &n.preview {
                                 let r = mini[id];
-                                f.fill_rectangle(r.position(), r.size(), Color::WHITE);
+                                let selected = self.selected_preview.as_ref() == Some(id);
+                                f.fill_rectangle(
+                                    r.position(),
+                                    r.size(),
+                                    if selected {
+                                        Color::from_rgb8(224, 247, 242)
+                                    } else {
+                                        Color::WHITE
+                                    },
+                                );
                                 f.stroke(
                                     &Path::rectangle(r.position(), r.size()),
-                                    Stroke::default().with_color(style::LINE),
+                                    Stroke::default()
+                                        .with_color(if selected {
+                                            style::TEAL
+                                        } else {
+                                            style::LINE
+                                        })
+                                        .with_width(if selected { 2.5 } else { 1. }),
                                 );
                                 draw_text(
                                     &mut f,