fix: forward pane cursor shape

fixes #116

3 files changed, 18 insertions, 1 deletions

diff --git a/src/server/headless.rs b/src/server/headless.rs
index cc57c1f5..9bb3181f 100644
--- a/src/server/headless.rs
+++ b/src/server/headless.rs
@@ -2137,6 +2137,7 @@ mod tests {
                 x: pane.inner_rect.x + 4,
                 y: pane.inner_rect.y,
                 visible: true,
+                shape: cursor.as_ref().map(|c| c.shape).unwrap_or(0),
             })
         );
     }
@@ -2172,6 +2173,7 @@ mod tests {
                 x: pane.inner_rect.x + 4,
                 y: pane.inner_rect.y,
                 visible: false,
+                shape: cursor.as_ref().map(|c| c.shape).unwrap_or(0),
             })
         );
     }
diff --git a/src/server/protocol.rs b/src/server/protocol.rs
index e9b7975e..7d0d3e2d 100644
--- a/src/server/protocol.rs
+++ b/src/server/protocol.rs
@@ -13,7 +13,7 @@ use serde::{Deserialize, Serialize};
 // ---------------------------------------------------------------------------
 
 /// Current protocol version. Bumped when wire format changes incompatibly.
-pub const PROTOCOL_VERSION: u32 = 5;
+pub const PROTOCOL_VERSION: u32 = 6;
 
 /// Maximum allowed frame payload size (2 MB). Frames larger than this are
 /// rejected to prevent denial-of-service via oversized length prefixes.
@@ -103,6 +103,13 @@ pub struct CellData {
     pub hyperlink: Option<u32>,
 }
 
+/// Cursor shape encoded as a DECSCUSR parameter.
+///
+/// 0 = terminal default, 1 = blinking block, 2 = steady block,
+/// 3 = blinking underline, 4 = steady underline, 5 = blinking bar,
+/// 6 = steady bar.
+pub type CursorShapeParam = u8;
+
 /// Cursor position within a rendered frame.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
 pub struct CursorState {
@@ -112,6 +119,9 @@ pub struct CursorState {
     pub y: u16,
     /// Whether the cursor is visible.
     pub visible: bool,
+    /// Cursor shape as a DECSCUSR parameter.
+    #[serde(default)]
+    pub shape: CursorShapeParam,
 }
 
 /// A rendered frame to be displayed by the client.
@@ -725,6 +735,7 @@ mod tests {
                 x: 0,
                 y: 0,
                 visible: true,
+                shape: 6,
             }),
             hyperlinks: vec!["https://example.com".to_owned()],
             graphics: Vec::new(),
@@ -875,6 +886,7 @@ mod tests {
                 x: 10,
                 y: 5,
                 visible: true,
+                shape: 0,
             }),
             hyperlinks: Vec::new(),
             graphics: Vec::new(),
@@ -1151,6 +1163,7 @@ mod tests {
             x: 1,
             y: 0,
             visible: true,
+            shape: 0,
         };
         let frame = FrameData::from_ratatui_buffer(&buffer, Some(cursor.clone()));
 
diff --git a/src/server/render_stream.rs b/src/server/render_stream.rs
index ca0ecddd..a921960c 100644
--- a/src/server/render_stream.rs
+++ b/src/server/render_stream.rs
@@ -151,6 +151,7 @@ impl CursorTrackingBackend {
             x: pos.x,
             y: pos.y,
             visible: true,
+            shape: 0,
         })
     }
 }
@@ -296,5 +297,6 @@ fn focused_terminal_cursor(app_state: &AppState) -> Option<CursorState> {
         x: cursor.x,
         y: cursor.y,
         visible: cursor.visible && !crate::ui::pane_is_scrolled_back(rt),
+        shape: cursor.shape,
     })
 }