Add keybindings for switching between connection tabs

Wire up Ctrl+Right/Left for tab cycling and Ctrl+W for closing the
active tab. Adds configurable next_tab/prev_tab/close_tab fields,
a parameterless CloseCurrentTab action, and help popup entries.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: trepidity

crates/loom-tui/src/action.rs

@@ -48,6 +48,7 @@ pub enum Action {
     PrevTab,
     NewTab,
     CloseTab(ConnectionId),
+    CloseCurrentTab,
     SwitchTab(ConnectionId),
 
     // Connection

crates/loom-tui/src/app.rs

@@ -1743,6 +1743,17 @@ impl App {
                 self.connection_form.view_folder(&path, &description);
             }
 
+            Action::CloseCurrentTab => {
+                if let Some(id) = self.active_tab_id {
+                    self.tabs.retain(|t| t.id != id);
+                    self.tab_bar.remove_tab(id);
+                    self.active_tab_id = self.tab_bar.active_tab;
+                    self.detail_panel.clear();
+                    if self.active_tab_id.is_none() {
+                        self.status_bar.set_disconnected();
+                    }
+                }
+            }
             Action::CloseTab(id) => {
                 self.tabs.retain(|t| t.id != id);
                 self.tab_bar.remove_tab(id);

crates/loom-tui/src/components/help_popup.rs

@@ -209,6 +209,18 @@ fn build_sections(keymap: &Keymap) -> Vec<HelpSection> {
                     keymap.hint("focus_prev").to_string(),
                     "Previous panel".to_string(),
                 ),
+                (
+                    keymap.hint("next_tab").to_string(),
+                    "Next tab".to_string(),
+                ),
+                (
+                    keymap.hint("prev_tab").to_string(),
+                    "Previous tab".to_string(),
+                ),
+                (
+                    keymap.hint("close_tab").to_string(),
+                    "Close tab".to_string(),
+                ),
                 (keymap.hint("quit").to_string(), "Quit".to_string()),
                 (
                     keymap.hint("force_quit").to_string(),

crates/loom-tui/src/config.rs

@@ -91,6 +91,9 @@ pub struct KeybindingConfig {
     pub save_connection: String,
     pub switch_to_browser: String,
     pub switch_to_profiles: String,
+    pub next_tab: String,
+    pub prev_tab: String,
+    pub close_tab: String,
 }
 
 impl Default for KeybindingConfig {
@@ -110,6 +113,9 @@ impl Default for KeybindingConfig {
             save_connection: "F10".to_string(),
             switch_to_browser: "F1".to_string(),
             switch_to_profiles: "F2".to_string(),
+            next_tab: "Ctrl+Right".to_string(),
+            prev_tab: "Ctrl+Left".to_string(),
+            close_tab: "Ctrl+w".to_string(),
         }
     }
 }

crates/loom-tui/src/keymap.rs

@@ -199,6 +199,24 @@ impl Keymap {
                 &defaults.switch_to_profiles,
                 Action::SwitchLayout(ActiveLayout::Profiles),
             ),
+            (
+                "next_tab",
+                &config.next_tab,
+                &defaults.next_tab,
+                Action::NextTab,
+            ),
+            (
+                "prev_tab",
+                &config.prev_tab,
+                &defaults.prev_tab,
+                Action::PrevTab,
+            ),
+            (
+                "close_tab",
+                &config.close_tab,
+                &defaults.close_tab,
+                Action::CloseCurrentTab,
+            ),
         ];
 
         for (name, user_str, default_str, action) in bindings {