From da547fb7a1654220a40d0b1dbed30d51b26bf485 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Thu, 26 Feb 2026 10:38:45 +0200
Subject: tui: polish fd trace view key handling and docs

---
 internal/event/pair.go                  | 1 +
 internal/tui/eventstream/model.go       | 2 ++
 internal/tui/eventstream/streamevent.go | 1 +
 3 files changed, 4 insertions(+)

diff --git a/internal/event/pair.go b/internal/event/pair.go
index b6dc80c..1d1e9ce 100644
--- a/internal/event/pair.go
+++ b/internal/event/pair.go
@@ -102,6 +102,7 @@ func (e *Pair) FileName() string {
 	return e.File.Name()
 }
 
+// FileDescriptor returns the associated file descriptor when available.
 func (e *Pair) FileDescriptor() (int32, bool) {
 	if e.File == nil {
 		return 0, false
diff --git a/internal/tui/eventstream/model.go b/internal/tui/eventstream/model.go
index 8b162e5..42018d5 100644
--- a/internal/tui/eventstream/model.go
+++ b/internal/tui/eventstream/model.go
@@ -90,6 +90,8 @@ func (m *Model) HandleKey(keyStr string) bool {
 	}
 	if m.fdTraceView.visible {
 		switch keyStr {
+		case "enter", " ", "space":
+			return true
 		case "j", "down":
 			m.scrollFDTraceByLines(1)
 			return true
diff --git a/internal/tui/eventstream/streamevent.go b/internal/tui/eventstream/streamevent.go
index 9e89488..a5c3d14 100644
--- a/internal/tui/eventstream/streamevent.go
+++ b/internal/tui/eventstream/streamevent.go
@@ -21,6 +21,7 @@ type StreamEvent struct {
 	FD         int32
 }
 
+// UnknownFD marks events that are not associated with a file descriptor.
 const UnknownFD int32 = -1
 
 func NewStreamEvent(seq uint64, pair *event.Pair) StreamEvent {
-- 
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