Browse message value properties by record with bounded pages

crates/oa-desktop/src/forms.rs

@@ -32,6 +32,12 @@ pub struct Input {
     pub raw: String,
     pub editor: text_editor::Content,
 }
+#[derive(Clone, Default)]
+pub struct ValueBrowser {
+    pub scope: Option<crate::data_values::FieldPathKey>,
+    pub page: usize,
+}
+
 pub struct Draft {
     pub kind: RecordKind,
     pub original: Id,
@@ -40,6 +46,7 @@ pub struct Draft {
     pub inputs: BTreeMap<String, Input>,
     pub exact_strings: bool,
     port_contract_drafts: BTreeMap<String, Value>,
+    pub value_browsers: BTreeMap<String, ValueBrowser>,
 }
 
 impl Draft {
@@ -77,11 +84,14 @@ impl Draft {
             inputs: BTreeMap::new(),
             exact_strings: false,
             port_contract_drafts: BTreeMap::new(),
+            value_browsers: BTreeMap::new(),
         };
         draft.rebuild();
         Some(draft)
     }
     fn rebuild(&mut self) {
+        // Array/variant edits can change the meaning of a row path.
+        self.value_browsers.clear();
         self.inputs.clear();
         fn visit(value: &Value, path: &str, out: &mut BTreeMap<String, Input>) {
             match value {
@@ -710,10 +720,15 @@ fn reference_ids(draft: &Draft, project: &Project, path: &str) -> Vec<Id> {
                             ..
                         },
                     ..
-                } => project
-                    .relations
-                    .get(id)
-                    .and_then(|r| crate::data_values::choices(project, r, message_kind).ok()),
+                } => project.relations.get(id).and_then(|r| {
+                    let scope = address_path.split_last().map(|(&field, path)| {
+                        crate::data_values::FieldPathKey {
+                            path: path.to_vec(),
+                            field,
+                        }
+                    });
+                    crate::data_values::at_scope(project, r, message_kind, scope.as_ref()).ok()
+                }),
                 _ => None,
             })
             .unwrap_or_default()