Add serde feature

Cargo.toml

@@ -37,6 +37,7 @@ tuirs-termion = ["tuirs", "dep:termion", "tui/termion"]
 tuirs-no-backend = ["tuirs"]
 # Other optional features
 search = ["dep:regex"]
+serde = ["dep:serde"]
 
 [dependencies]
 arbitrary = { version = "1", features = ["derive"], optional = true }
@@ -48,6 +49,7 @@ termion = { version = "2.0", optional = true }
 termwiz = { version = "0.20.0", optional = true }
 tui = { version = "0.19", default-features = false, optional = true }
 unicode-width = "0.1.11"
+serde = { version = "1", optional = true }
 
 [[example]]
 name = "minimal"

src/cursor.rs

@@ -2,14 +2,17 @@ use crate::widget::Viewport;
 use crate::word::{find_word_start_backward, find_word_start_forward};
 #[cfg(feature = "arbitrary")]
 use arbitrary::Arbitrary;
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
 use std::cmp;
 
 /// Specify how to move the cursor.
 ///
 /// This type is marked as `#[non_exhaustive]` since more variations may be supported in the future.
 #[non_exhaustive]
-#[derive(Clone, Copy, Debug)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 #[cfg_attr(feature = "arbitrary", derive(Arbitrary))]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub enum CursorMove {
     /// Move cursor forward by one character. When the cursor is at the end of line, it moves to the head of next line.
     /// ```