fix(tui): correct btw cursor offset

Only count the dialog frame padding row when padDialogFrame actually inserts it, so the btw editor cursor stays on the input row after a turn.

Co-authored-by: mi-skam <40042054+mi-skam@users.noreply.github.com>

commit: c56e04afd51f6351f86851f7ac9d46fe7020702a
author: patriceckhart · 4mo ago · 2026-06-22 05:47 UTC
parent: ab3d4c5
signature: unsigned

1 file · +6 -4

M packages/agent/modes/btw_dialog.go +6 -4


@@ -378,12 +378,14 @@ func (d *btwDialog) CursorPos(width int) (row, col int) {
378	378		}
379	379		// Reproduce render's structure to find where the editor sits.
380	380		// Note: the parent (interactive.go) wraps every dialog with
381		-	// padDialogFrame, which injects a blank row right after the
382		-	// frame header. We have to count that injected row here too;
383		-	// otherwise the reported cursor lands one row above the editor.
	381	+	// padDialogFrame. It only injects a blank row after the frame
	382	+	// header when Render did not already put one there. With existing
	383	+	// turns or a loading spinner, Render's first body row is already
	384	+	// blank, so counting an extra pad row would place the cursor one
	385	+	// row too low.
384	386		editorOffset := 1 // header
385		-	editorOffset++ // padDialogFrame's post-header blank
386	387		if len(d.turns) == 0 && !d.loading {
	388	+	editorOffset++ // padDialogFrame's post-header blank
387	389		editorOffset++ // muted "ask anything..." line
388	390		}
389	391		for _, t := range d.turns {

 	}
 	// Reproduce render's structure to find where the editor sits.
 	// Note: the parent (interactive.go) wraps every dialog with
-	// padDialogFrame, which injects a blank row right after the
+	// padDialogFrame. It only injects a blank row after the frame
-	// frame header. We have to count that injected row here too;
+	// header when Render did not already put one there. With existing
-	// otherwise the reported cursor lands one row above the editor.
+	// turns or a loading spinner, Render's first body row is already
+	// blank, so counting an extra pad row would place the cursor one
+	// row too low.
 	editorOffset := 1 // header
-	editorOffset++    // padDialogFrame's post-header blank
 	if len(d.turns) == 0 && !d.loading {
+		editorOffset++ // padDialogFrame's post-header blank
 		editorOffset++ // muted "ask anything..." line
 	}
 	for _, t := range d.turns {