adding new context_popover widget

src/ui/widgets/context_popover.rs

@@ -0,0 +1,79 @@
+use cosmic::widget::{Column, button, column, container, mouse_area};
+use cosmic::{Element, theme};
+
+#[derive(Default, Clone, Debug)]
+pub struct Context<Msg> {
+    entries: Vec<Entry<Msg>>,
+    modal: bool,
+}
+
+#[derive(Default, Clone, Debug)]
+pub enum Entry<Msg> {
+    Node((String, Msg)),
+    Tree((String, Vec<Entry<Msg>>)),
+    #[default]
+    Empty,
+}
+
+pub enum Message {
+    HoverTree,
+}
+
+pub enum Action<Msg> {
+    RunMsg(Msg),
+    None,
+}
+
+impl<Msg> Context<Msg>
+where
+    Msg: Clone,
+{
+    pub fn new() -> Self {
+        Self {
+            entries: vec![],
+            modal: false,
+        }
+    }
+
+    pub fn with_entries(entries: impl Into<Vec<Entry<Msg>>>) -> Self {
+        Self {
+            entries: entries.into(),
+            modal: false,
+        }
+    }
+
+    pub fn view(
+        content: impl Into<Element<Message>>,
+    ) -> Element<Message> {
+        todo!()
+    }
+
+    pub fn update(&mut self, message: Message) -> Action {
+        match message {
+            Message::HoverTree => todo!(),
+        }
+        Action::None
+    }
+}
+
+fn widget_trees(entries: Vec<Entry<Msg>>) -> Column<Message> {
+    let mut column = column(vec![]);
+    for entry in entries {
+        match entry {
+            Entry::Node((name, message)) => {
+                let button = button::text(name)
+                    .on_press(message)
+                    .class(theme::Button::MenuItem);
+                column.push(button);
+            }
+            Entry::Tree((name, entries)) => {
+                let container =
+                    container(name).class(theme::Container::List);
+                let mouse_area =
+                    mouse_area(container).on_enter(Msg::HoverTree);
+            }
+            Entry::Empty => (),
+        }
+    }
+    column
+}