feat: add move tab keybind actions (#2561)

* feat: add move tab keybind actions

Add optional keys.move_tab_previous/move_tab_next actions that reorder
the active tab one position, wrapping at either end. Reuses the
existing tab.move runtime path that mouse drag reordering already
drives.

* fix: exit navigate mode on single-tab move attempts

2 files changed, 20 insertions, 0 deletions

diff --git a/src/config/keybinds.rs b/src/config/keybinds.rs
index de732121..79dc87e3 100644
--- a/src/config/keybinds.rs
+++ b/src/config/keybinds.rs
@@ -328,6 +328,8 @@ pub struct Keybinds {
     pub rename_tab: ActionKeybinds,
     pub previous_tab: ActionKeybinds,
     pub next_tab: ActionKeybinds,
+    pub move_tab_previous: ActionKeybinds,
+    pub move_tab_next: ActionKeybinds,
     pub switch_tab: Vec<IndexedKeybind>,
     pub switch_workspace: Vec<IndexedKeybind>,
     pub close_tab: ActionKeybinds,
@@ -494,6 +496,8 @@ impl Config {
             rename_tab: empty_action!(),
             previous_tab: empty_action!(),
             next_tab: empty_action!(),
+            move_tab_previous: empty_action!(),
+            move_tab_next: empty_action!(),
             switch_tab: Vec::new(),
             switch_workspace: Vec::new(),
             close_tab: empty_action!(),
@@ -629,6 +633,8 @@ impl Config {
             apply_action!(keybinds.rename_tab, rename_tab, source);
             apply_action!(keybinds.previous_tab, previous_tab, source);
             apply_action!(keybinds.next_tab, next_tab, source);
+            apply_action!(keybinds.move_tab_previous, move_tab_previous, source);
+            apply_action!(keybinds.move_tab_next, move_tab_next, source);
             apply_indexed!(
                 keybinds.switch_tab,
                 switch_tab,
diff --git a/src/config/model.rs b/src/config/model.rs
index 16aa1d7d..0b237376 100644
--- a/src/config/model.rs
+++ b/src/config/model.rs
@@ -393,6 +393,10 @@ pub struct KeysConfig {
     pub previous_tab: BindingConfig,
     /// Select the next tab. Default: "prefix+n".
     pub next_tab: BindingConfig,
+    /// Move the active tab one position toward the front. Unset by default.
+    pub move_tab_previous: BindingConfig,
+    /// Move the active tab one position toward the back. Unset by default.
+    pub move_tab_next: BindingConfig,
     /// Switch to tab 1-9. Default: "prefix+1..9".
     pub switch_tab: BindingConfig,
     /// Switch to workspace 1-9 from prefix mode. Unset by default.
@@ -521,6 +525,10 @@ pub(crate) struct KeysConfigOverlay {
     #[serde(skip_serializing_if = "Option::is_none")]
     next_tab: Option<BindingConfig>,
     #[serde(skip_serializing_if = "Option::is_none")]
+    move_tab_previous: Option<BindingConfig>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    move_tab_next: Option<BindingConfig>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     switch_tab: Option<BindingConfig>,
     #[serde(skip_serializing_if = "Option::is_none")]
     switch_workspace: Option<BindingConfig>,
@@ -627,6 +635,8 @@ impl<'de> Deserialize<'de> for KeysConfig {
         apply_field!(rename_tab);
         apply_field!(previous_tab);
         apply_field!(next_tab);
+        apply_field!(move_tab_previous);
+        apply_field!(move_tab_next);
         apply_field!(switch_tab);
         apply_field!(switch_workspace);
         apply_field!(close_tab);
@@ -729,6 +739,8 @@ impl KeysConfig {
         copy_effective_action_field!(rename_tab, keybinds.rename_tab);
         copy_effective_action_field!(previous_tab, keybinds.previous_tab);
         copy_effective_action_field!(next_tab, keybinds.next_tab);
+        copy_effective_action_field!(move_tab_previous, keybinds.move_tab_previous);
+        copy_effective_action_field!(move_tab_next, keybinds.move_tab_next);
         copy_effective_indexed_field!(switch_tab, keybinds.switch_tab);
         copy_effective_indexed_field!(switch_workspace, keybinds.switch_workspace);
         copy_effective_action_field!(close_tab, keybinds.close_tab);
@@ -1025,6 +1037,8 @@ impl Default for KeysConfig {
             rename_tab: BindingConfig::one("prefix+shift+t"),
             previous_tab: BindingConfig::one("prefix+p"),
             next_tab: BindingConfig::one("prefix+n"),
+            move_tab_previous: BindingConfig::empty(),
+            move_tab_next: BindingConfig::empty(),
             switch_tab: BindingConfig::one("prefix+1..9"),
             switch_workspace: BindingConfig::empty(),
             close_tab: BindingConfig::one("prefix+shift+x"),