feat: add bar element margins and space LSP indicators

src/chrome.rs

@@ -106,6 +106,7 @@ pub struct ChromeLine {
 pub struct SegmentConfig {
     pub title: String,
     pub padding: usize,
+    pub margin: usize,
     pub leading_edge: String,
     pub trailing_edge: String,
     pub first_leading_edge: Option<String>,
@@ -116,6 +117,7 @@ impl Default for SegmentConfig {
         Self {
             title: String::new(),
             padding: 1,
+            margin: 0,
             leading_edge: String::new(),
             trailing_edge: String::new(),
             first_leading_edge: None,
@@ -167,10 +169,12 @@ impl ChromeLine {
             validate_name(name)?;
         }
         for (name, segment) in &self.segments {
-            if segment.padding > 64 {
-                return Err(format!(
-                    "Chrome segment {name:?} padding must be between 0 and 64"
-                ));
+            for (option, value) in [("padding", segment.padding), ("margin", segment.margin)] {
+                if value > 64 {
+                    return Err(format!(
+                        "Chrome segment {name:?} {option} must be between 0 and 64"
+                    ));
+                }
             }
             for (option, text) in [
                 ("title", Some(&segment.title)),
@@ -198,6 +202,9 @@ impl ChromeLine {
 
 fn default_segment(name: &str) -> SegmentConfig {
     let mut segment = SegmentConfig::default();
+    if name == "lsp" {
+        segment.margin = 1;
+    }
     if matches!(name, "tabs" | "position" | "battery") {
         segment.leading_edge = "░▓".into();
     }
@@ -258,6 +265,7 @@ struct LineOptions {
 struct SegmentOptions {
     title: Option<String>,
     padding: Option<usize>,
+    margin: Option<usize>,
     leading_edge: Option<String>,
     trailing_edge: Option<String>,
     first_leading_edge: Option<String>,
@@ -304,6 +312,9 @@ fn deserialize_line<'de, D: Deserializer<'de>>(
         if let Some(padding) = options.padding {
             segment.padding = padding;
         }
+        if let Some(margin) = options.margin {
+            segment.margin = margin;
+        }
         if let Some(edge) = options.leading_edge {
             segment.leading_edge = edge;
         }
@@ -402,27 +413,6 @@ mod tests {
         bottom: ChromeLine,
     }
 
-    #[test]
-    fn bottom_keeps_metadata_on_the_right_without_filled_styles() {
-        let line = ChromeLine::bottom();
-        assert_eq!(
-            line.left,
-            [
-                "mode",
-                "pending",
-                "buffer",
-                "diagnostics",
-                "path",
-                "selections",
-                "count"
-            ]
-        );
-        assert_eq!(line.right, ["language", "lsp", "position"]);
-        for name in ["language", "lsp"] {
-            assert_eq!(line.segment(name), &SegmentConfig::default());
-        }
-    }
-
     #[test]
     fn omitted_options_inherit_and_explicit_groups_replace_defaults() {
         let lines: Lines = serde_json::from_value(serde_json::json!({
@@ -521,6 +511,11 @@ mod tests {
             serde_json::json!({"left": null}),
             serde_json::json!({"tabs": {"padding": 65}}),
             serde_json::json!({"tabs": {"padding": null}}),
+            serde_json::json!({"tabs": {"margin": 65}}),
+            serde_json::json!({"tabs": {"margin": -1}}),
+            serde_json::json!({"tabs": {"margin": null}}),
+            serde_json::json!({"tabs": {"margin": "1"}}),
+            serde_json::json!({"tabs": {"margin": 1.5}}),
             serde_json::json!({"tabs": {"leading_edge": "\n"}}),
             serde_json::json!({"tabs": {"title": "{unknown}"}}),
             serde_json::json!({"tabs": {"title": "{name"}}),