1 files changed, 21 insertions, 1 deletions

diff --git a/src/detached/server.zig b/src/detached/server.zig
index 8f45135a..13cf4488 100644
--- a/src/detached/server.zig
+++ b/src/detached/server.zig
@@ -373,6 +373,7 @@ pub const Session = struct {
         .pty_signal = ptySignal,
         .close_pty = closePaneShell,
         .tty_taken = ttyTaken,
+        .fg_name = fgName,
         .kill_job = killJob,
         .write_file = writeFile,
         .write_dump = writeDump,
@@ -544,6 +545,14 @@ pub const Session = struct {
         return host_io.ttyTaken(pt.pid, pt.fd);
     }
 
+    fn fgName(ctx: ?*anyopaque, pane: u8, buf: []u8) ?[]const u8 {
+        const s = of(ctx);
+        if (pane >= s.ptys.len) return null;
+        const pt = s.ptys[pane];
+        if (pt.fd < 0) return null;
+        return host_io.foregroundName(pt.pid, pt.fd, buf);
+    }
+
     fn killJob(ctx: ?*anyopaque, pane: u8) bool {
         const s = of(ctx);
         if (pane >= s.ptys.len) return false;
@@ -1076,7 +1085,9 @@ pub const Session = struct {
             rows = if (rows == 0) c.rows else @min(rows, c.rows);
         }
         var regridded = false;
-        if (cols != 0 and (cols != s.cols or rows != s.rows)) {
+        // Against the core's size too: a root ctl `size` may have set it
+        // while nobody was attached.
+        if (cols != 0 and (cols != s.cols or rows != s.rows or cols != s.core.screen_w or rows != s.core.screen_h)) {
             s.cols = cols;
             s.rows = rows;
             for (&s.clients) |*c| c.need_full = true;
@@ -1190,11 +1201,20 @@ fn onQuitSignal(_: std.posix.SIG) callconv(.c) void {
     if (quit_wake >= 0) _ = libc.send(quit_wake, "q", 1, nosignal);
 }
 
+/// The screen of a detached session no frontend has sized.
+pub const detached_cols = 160;
+pub const detached_rows = 50;
+
 pub fn run(init: std.process.Init, opts: pardes.Options, name: []const u8) !void {
     const gpa = init.gpa;
     const allocs = pardes.memory.init(gpa);
     defer pardes.memory.deinit();
     var options = opts;
+    // No frontend yet, so no size to take: one roomy enough for a script's
+    // panes (80x24 left pane/new refused after a few); `size` sets another,
+    // and an attaching frontend its own.
+    options.cols = detached_cols;
+    options.rows = detached_rows;
     options.image_allocator = allocs.image;
     options.pdf_allocator = allocs.pdf;
     options.tree_sitter_allocator = allocs.tree_sitter;