Add ContextMenu component

crates/ui2/src/components/context_menu.rs

@@ -0,0 +1,67 @@
+use crate::prelude::*;
+use crate::{
+    theme, v_stack, Label, List, ListEntry, ListItem, ListItemVariant, ListSeparator, ListSubHeader,
+};
+
+#[derive(Clone)]
+pub enum ContextMenuItem<S: 'static + Send + Sync + Clone> {
+    Header(&'static str),
+    Entry(Label<S>),
+    Separator,
+}
+
+impl<S: 'static + Send + Sync + Clone> ContextMenuItem<S> {
+    fn to_list_item(self) -> ListItem<S> {
+        match self {
+            ContextMenuItem::Header(label) => ListSubHeader::new(label).into(),
+            ContextMenuItem::Entry(label) => {
+                ListEntry::new(label).variant(ListItemVariant::Inset).into()
+            }
+            ContextMenuItem::Separator => ListSeparator::new().into(),
+        }
+    }
+
+    pub fn header(label: &'static str) -> Self {
+        Self::Header(label)
+    }
+
+    pub fn separator() -> Self {
+        Self::Separator
+    }
+
+    pub fn entry(label: Label<S>) -> Self {
+        Self::Entry(label)
+    }
+}
+
+#[derive(Element)]
+pub struct ContextMenu<S: 'static + Send + Sync + Clone> {
+    items: Vec<ContextMenuItem<S>>,
+}
+
+impl<S: 'static + Send + Sync + Clone> ContextMenu<S> {
+    pub fn new(items: impl IntoIterator<Item = ContextMenuItem<S>>) -> Self {
+        Self {
+            items: items.into_iter().collect(),
+        }
+    }
+    fn render(&mut self, cx: &mut ViewContext<S>) -> impl Element<State = S> {
+        let theme = theme(cx);
+
+        v_stack()
+            .flex()
+            .fill(theme.lowest.base.default.background)
+            .border()
+            .border_color(theme.lowest.base.default.border)
+            .child(
+                List::new(
+                    self.items
+                        .clone()
+                        .into_iter()
+                        .map(ContextMenuItem::to_list_item)
+                        .collect(),
+                )
+                .set_toggle(ToggleState::Toggled),
+            )
+    }
+}