implement a toggle theme menu

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

advotracker/src/data/constants.rs

@@ -36,6 +36,7 @@ pub static ID_POLICY_CHECK_MENU_SHORTCUT_QUIT: &'static str = "policy_check_menu
 pub static ID_POLICY_CHECK_MENU_LABEL_TOGGLE_THEME: &'static str = "policy_check_menu_label_toggle_theme";
 pub static ID_POLICY_CHECK_POLICY_NUMBER: &'static str = "policy_check_policy_number";
 pub static ID_POLICY_CHECK_POPUP_MENU: &'static str = "policy_check_popup_menu";
+pub static ID_POLICY_CHECK_POPUP_MENU_TOGGLE_THEME: &'static str = "policy_check_popup_menu_toggle_theme";
 pub static ID_POLICY_CHECK_POPUP_PROGRESS: &'static str = "policy_check_popup_progress";
 pub static ID_POLICY_CHECK_PROGRESS_BAR: &'static str = "policy_check_progress_bar";
 pub static ID_POLICY_CHECK_PROGRESS_TIME: &'static str = "policy_check_progress_time";

advotracker/src/widgets/policycheck/policycheck_state.rs

@@ -393,6 +393,23 @@ impl PolicycheckState {
         println!("PopupProgress created: {:?}", self.progress_popup);
     }
 
+    /// Set a toggle_theme menu
+    fn set_menu_toggle_theme(&mut self, ctx: &mut Context<'_>) {
+        let stack = ctx
+            .entity_of_child(ID_POLICY_CHECK_POPUP_MENU_TOGGLE_THEME)
+            .expect("PolicycheckState: Can't find entity of resource 'ID_POLICY_CHECK_MENU_TOGGLE_THEME'.");
+        let current_entity = ctx.entity();
+        let build_context = &mut ctx.build_context();
+
+        // create a menu overlay
+        self.popup_menu_toggle_theme = create_menu_toggle_theme(current_entity, build_context);
+
+        // create a menu_popup widget as a child of entity "ID_POLICY_CHECK_POPUP_MENU"
+        build_context.append_child(stack, self.popup_menu_toggle_theme);
+
+        println!("Popup Menu Toggle Theme created: {:?}", self.popup_menu_toggle_theme);
+    }
+
     /// Change visibility of the result label.
     fn _set_visibility(&self, entity: Entity, ctx: &mut Context<'_>) {
         if ctx.get_widget(entity).get::<String16>("text").is_empty() {
@@ -659,6 +676,35 @@ fn create_menu(target: Entity, ctx: &mut BuildContext<'_>) -> Entity {
         .build(ctx)
 }
 
+/// Create a popup submenu to toogle the active theme
+fn create_menu_toggle_theme(target: Entity, ctx: &mut BuildContext<'_>) -> Entity {
+    Popup::new()
+        .id(ID_POLICY_CHECK_POPUP_MENU_TOGGLE_THEME)
+        .style("container_menu")
+        .target(target)
+        .open(true)
+        .width(280)
+        .height(140)
+        .child(
+            ComboBox::new()
+                .attach(Grid::column(2))
+                .attach(Grid::row(6))
+                //.count(themes_count)
+                .items_builder(move |bc, index| {
+                    let theme_name =
+                        PolicycheckView::themes_ref(&bc.get_widget(target))[index].clone();
+                    //TextBlock::new().v_align("center").text(theme_name).build(bc)
+                    TextBlock::new().v_align("center").text("redox").build(bc)
+                })
+                .on_changed("selected_index", move |ctx, _| {
+                    ctx.send_message(PolicycheckAction::ChangeTheme, target);
+                })
+                .selected_index(target)
+                .build(ctx),
+        )
+        .build(ctx)
+}
+
 /// Create a progress popup with update status of an onging data import
 fn create_popup_progress(target: Entity, ctx: &mut BuildContext<'_>) -> Entity {
     Popup::new()

advotracker/src/widgets/policycheck/policycheck_view.rs

@@ -15,6 +15,8 @@ use crate::{
     widgets::policycheck::policycheck_state::*,
 };
 
+type List = Vec<String>;
+
 // Macro that initializes the widget structures/variables for our view
 widget!(
     /// Dialog to enter a policy identifier/number.