1 files changed, 60 insertions, 3 deletions

diff --git a/src/config/option/tab_option.rs b/src/config/option/tab_option.rs
index b729254..efeca59 100644
--- a/src/config/option/tab_option.rs
+++ b/src/config/option/tab_option.rs
@@ -1,13 +1,27 @@
-use crate::tab::TabHomePage;
+use std::str::FromStr;
+
+use serde_derive::Deserialize;
+
+use crate::{
+    error::{JoshutoError, JoshutoErrorKind},
+    tab::TabHomePage,
+};
 
 #[derive(Clone, Debug)]
 pub struct TabOption {
     pub _home_page: TabHomePage,
+    pub display: TabBarDisplayOption,
 }
 
 impl TabOption {
-    pub fn new(_home_page: TabHomePage) -> Self {
-        Self { _home_page }
+    pub fn new(_home_page: TabHomePage, display_mode: TabBarDisplayMode, max_len: usize) -> Self {
+        Self {
+            _home_page,
+            display: TabBarDisplayOption {
+                mode: display_mode,
+                max_len,
+            },
+        }
     }
     pub fn home_page(&self) -> TabHomePage {
         self._home_page
@@ -18,6 +32,49 @@ impl std::default::Default for TabOption {
     fn default() -> Self {
         Self {
             _home_page: TabHomePage::Home,
+            display: TabBarDisplayOption::default(),
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct TabBarDisplayOption {
+    pub mode: TabBarDisplayMode,
+    pub max_len: usize,
+}
+
+impl Default for TabBarDisplayOption {
+    fn default() -> Self {
+        Self {
+            mode: Default::default(),
+            max_len: 16,
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, Deserialize, Default)]
+pub enum TabBarDisplayMode {
+    #[serde(rename = "num")]
+    Number,
+    #[default]
+    #[serde(rename = "dir")]
+    Directory,
+    #[serde(rename = "all")]
+    All,
+}
+
+impl FromStr for TabBarDisplayMode {
+    type Err = JoshutoError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s {
+            "num" => Ok(Self::Number),
+            "dir" => Ok(Self::Directory),
+            "all" => Ok(Self::All),
+            s => Err(JoshutoError::new(
+                JoshutoErrorKind::UnrecognizedArgument,
+                format!("tab_bar_mode: `{}` unknown argument.", s),
+            )),
         }
     }
 }