toolbar: process actions

Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck_columns/src/app.rs

@@ -534,9 +534,16 @@ fn render_damus_mobile(
     let mut rect = ui.available_rect_before_wrap();
     let mut app_action: Option<AppAction> = None;
 
+    let active_col = app.columns_mut(app_ctx.accounts).selected as usize;
     if !app.columns(app_ctx.accounts).columns().is_empty() {
-        let r = nav::render_nav(0, ui.available_rect_before_wrap(), app, app_ctx, ui)
-            .process_render_nav_response(app, app_ctx, ui);
+        let r = nav::render_nav(
+            active_col,
+            ui.available_rect_before_wrap(),
+            app,
+            app_ctx,
+            ui,
+        )
+        .process_render_nav_response(app, app_ctx, ui);
         if let Some(r) = &r {
             match r {
                 ProcessNavResult::SwitchOccurred => {
@@ -563,7 +570,7 @@ fn render_damus_mobile(
         .clicked()
         && !app.columns(app_ctx.accounts).columns().is_empty()
     {
-        let router = app.columns_mut(app_ctx.accounts).columns_mut()[0].router_mut();
+        let router = app.columns_mut(app_ctx.accounts).selected().router_mut();
         if router.top() == &Route::ComposeNote {
             router.go_back();
         } else {

crates/notedeck_columns/src/column.rs

@@ -39,7 +39,7 @@ pub struct Columns {
     columns: Vec<Column>,
 
     /// The selected column for key navigation
-    selected: i32,
+    pub selected: i32,
 }
 
 impl Columns {
@@ -47,6 +47,35 @@ impl Columns {
         Columns::default()
     }
 
+    /// Choose which column is selected. If in narrow mode, this
+    /// decides which column to render in the main view
+    pub fn select_column(&mut self, index: i32) {
+        let len = self.columns.len();
+
+        if index < (len as i32) {
+            self.selected = index;
+        }
+    }
+
+    /// Select the column based on the timeline kind.
+    ///
+    /// TODO: add timeline if missing?
+    pub fn select_by_kind(&mut self, kind: &TimelineKind) {
+        for (i, col) in self.columns.iter().enumerate() {
+            for route in col.router().routes() {
+                if let Some(timeline) = route.timeline_id() {
+                    if timeline == kind {
+                        tracing::info!("selecting {kind:?} column");
+                        self.select_column(i as i32);
+                        return;
+                    }
+                }
+            }
+        }
+
+        tracing::error!("failed to select {kind:?} column");
+    }
+
     pub fn add_new_timeline_column(
         &mut self,
         timeline_cache: &mut TimelineCache,

crates/notedeck_columns/src/decks.rs

@@ -37,9 +37,8 @@ impl Default for DecksCache {
 
 impl DecksCache {
     /// Gets the first column in the currently active user's active deck
-    pub fn first_column_mut(&mut self, accounts: &notedeck::Accounts) -> Option<&mut Column> {
-        self.active_columns_mut(accounts)
-            .and_then(|ad| ad.columns_mut().first_mut())
+    pub fn selected_column_mut(&mut self, accounts: &notedeck::Accounts) -> Option<&mut Column> {
+        self.active_columns_mut(accounts).map(|ad| ad.selected())
     }
 
     /// Gets the active columns