Use selection list instead of date picker for loading

src/main.rs

@@ -727,7 +727,7 @@ struct Report {
     earnings_2: f64,
 }
 
-#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Debug)]
+#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Debug, Hash)]
 struct ReportDate {
     pub year: u64,
     pub month: u8,
@@ -926,6 +926,81 @@ impl EditState {
     }
 }
 
+#[derive(Clone, Copy, Debug)]
+enum ReportPickerMsg {
+    Open,
+    Close,
+    Pick,
+    Select(ReportDate),
+}
+
+struct ReportPicker<F> {
+    reports: Vec<ReportDate>,
+    on_pick: F,
+}
+
+#[derive(Default)]
+struct ReportPickerState {
+    modal: bool,
+    pick: Option<ReportDate>,
+}
+
+impl<M, F> iced::widget::Component<M, Renderer> for ReportPicker<F>
+where
+    F: FnMut(ReportDate) -> M,
+{
+    type State = ReportPickerState;
+    type Event = ReportPickerMsg;
+
+    fn update(&mut self, state: &mut Self::State, event: Self::Event) -> Option<M> {
+        match event {
+            ReportPickerMsg::Open => {
+                state.modal = true;
+            }
+            ReportPickerMsg::Close => {
+                state.modal = false;
+                state.pick = None;
+            }
+            ReportPickerMsg::Pick => {
+                if let Some(r) = state.pick.take() {
+                    state.modal = false;
+                    return Some((self.on_pick)(r));
+                }
+            }
+            ReportPickerMsg::Select(o) => {
+                state.pick = Some(o);
+            }
+        }
+
+        None
+    }
+
+    fn view(&self, state: &Self::State) -> iced_aw::Element<'_, Self::Event, Renderer> {
+        let underlay = button("Load").on_press(ReportPickerMsg::Open);
+        let overlay = match state.modal {
+            true => Some(
+                card(
+                    text("Load report"),
+                    column![
+                        selection_list(&self.reports, |_, v| ReportPickerMsg::Select(v))
+                            .height(Length::Shrink),
+                        button(text("Load")).on_press(ReportPickerMsg::Pick)
+                    ]
+                    .spacing(5.),
+                )
+                .max_width(300.0)
+                .on_close(ReportPickerMsg::Close),
+            ),
+            false => None,
+        };
+
+        modal(underlay, overlay)
+            .backdrop(ReportPickerMsg::Close)
+            .on_esc(ReportPickerMsg::Close)
+            .into()
+    }
+}
+
 impl Application for Glaurung {
     type Message = Message;
     type Theme = Theme;
@@ -1148,11 +1223,9 @@ impl Application for Glaurung {
                 title: "Set report date",
                 on_pick: Message::SetDate,
             }))
-            .push(component(DatePicker {
-                label: "Load",
-                confirm: "Load",
-                title: "Load archived report",
+            .push(component(ReportPicker {
                 on_pick: Message::Load,
+                reports: self.archive.keys().copied().collect(),
             }));
 
         if let Some(&last) = self.archive.keys().next_back() {