basic add column impl

Signed-off-by: kernelkind <kernelkind@gmail.com>

src/ui/add_column.rs

@@ -0,0 +1,43 @@
+use egui::{RichText, Ui};
+use nostrdb::FilterBuilder;
+
+use crate::{app_style::NotedeckTextStyle, timeline::Timeline, user_account::UserAccount};
+
+pub enum AddColumnResponse {
+    Timeline(Timeline),
+}
+
+pub struct AddColumnView<'a> {
+    cur_account: Option<&'a UserAccount>,
+}
+
+impl<'a> AddColumnView<'a> {
+    pub fn new(cur_account: Option<&'a UserAccount>) -> Self {
+        Self { cur_account }
+    }
+
+    pub fn ui(&mut self, ui: &mut Ui) -> Option<AddColumnResponse> {
+        ui.label(RichText::new("Add column").text_style(NotedeckTextStyle::Heading.text_style()));
+
+        if ui.button("create global timeline").clicked() {
+            Some(AddColumnResponse::Timeline(create_global_timeline()))
+        } else {
+            None
+        }
+    }
+}
+
+fn create_global_timeline() -> Timeline {
+    let filter = FilterBuilder::new().kinds([1]).build();
+    Timeline::new(
+        crate::timeline::TimelineKind::Generic,
+        crate::filter::FilterState::Ready(vec![filter]),
+    )
+}
+
+// struct ColumnOption {
+//     title: &'static str,
+//     description: &'static str,
+//     icon: Box::<dyn Widget>,
+//     route: Route,
+// }

src/ui/mod.rs

@@ -1,5 +1,6 @@
 pub mod account_login_view;
 pub mod account_management;
+pub mod add_column;
 pub mod anim;
 pub mod mention;
 pub mod note;

src/ui/side_panel.rs

@@ -186,8 +186,11 @@ impl<'a> DesktopSidePanel<'a> {
                 }
             }
             SidePanelAction::Columns => {
-                // TODO
-                info!("Clicked columns button");
+                if router.routes().iter().any(|&r| r == Route::AddColumn) {
+                    router.go_back();
+                } else {
+                    router.route_to(Route::AddColumn);
+                }
             }
             SidePanelAction::ComposeNote => {
                 if router.routes().iter().any(|&r| r == Route::ComposeNote) {