2 files changed, 96 insertions, 88 deletions
diff --git a/internal/tui/flamegraph/keys.go b/internal/tui/flamegraph/keys.go
new file mode 100644
index 0000000..5b6dd04
--- /dev/null
+++ b/internal/tui/flamegraph/keys.go
@@ -0,0 +1,96 @@
+package flamegraph
+
+import (
+	"strings"
+
+	"charm.land/bubbles/v2/key"
+	tea "charm.land/bubbletea/v2"
+)
+
+func keyString(msg tea.KeyPressMsg) string {
+	if s := msg.String(); s != "" {
+		return s
+	}
+	return msg.Text
+}
+
+func isSearchOpenKey(msg tea.KeyPressMsg) bool { return keyString(msg) == "/" }
+func isNextMatchKey(msg tea.KeyPressMsg) bool  { return keyString(msg) == "n" }
+func isPrevMatchKey(msg tea.KeyPressMsg) bool  { return keyString(msg) == "N" }
+func isPauseKey(msg tea.KeyPressMsg) bool {
+	k := keyString(msg)
+	return k == " " || k == "space" || msg.Code == tea.KeySpace
+}
+func isResetBaselineKey(msg tea.KeyPressMsg) bool {
+	return keyString(msg) == "r"
+}
+func isCycleOrderKey(msg tea.KeyPressMsg) bool { return keyString(msg) == "o" }
+func isCycleMetricKey(msg tea.KeyPressMsg) bool {
+	return keyString(msg) == "b"
+}
+func isToggleHeightKey(msg tea.KeyPressMsg) bool { return keyString(msg) == "v" }
+func isHelpToggleKey(msg tea.KeyPressMsg) bool   { return keyString(msg) == "?" }
+
+func isZoomInKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	return key.Matches(msg, keys.ZoomIn) || msg.Code == tea.KeyEnter || strings.EqualFold(keyString(msg), "enter")
+}
+
+func isZoomUndoKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	return key.Matches(msg, keys.ZoomUndo) || msg.Code == tea.KeyBackspace || msg.Code == tea.KeyEsc
+}
+
+func isZoomResetKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	return key.Matches(msg, keys.ZoomReset)
+}
+
+func isMoveShallowerKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	k := keyString(msg)
+	return key.Matches(msg, keys.MoveShallower) || msg.Code == tea.KeyDown || keyMatchesDirection(k, "down", 'B')
+}
+
+func isMoveDeeperKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	k := keyString(msg)
+	return key.Matches(msg, keys.MoveDeeper) || msg.Code == tea.KeyUp || keyMatchesDirection(k, "up", 'A')
+}
+
+func isPrevSiblingKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	k := keyString(msg)
+	return key.Matches(msg, keys.PrevSibling) || msg.Code == tea.KeyLeft || keyMatchesDirection(k, "left", 'D')
+}
+
+func isNextSiblingKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	k := keyString(msg)
+	return key.Matches(msg, keys.NextSibling) || msg.Code == tea.KeyRight || keyMatchesDirection(k, "right", 'C')
+}
+
+func isJumpTopKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	k := strings.ToLower(keyString(msg))
+	return key.Matches(msg, keys.JumpTop) || msg.Code == tea.KeyPgUp || k == "pgup" || k == "pageup"
+}
+
+func isJumpRootKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
+	k := strings.ToLower(keyString(msg))
+	return key.Matches(msg, keys.JumpRoot) || msg.Code == tea.KeyPgDown || k == "pgdown" || k == "pgdn" || k == "pagedown"
+}
+
+func keyMatchesDirection(keyName, plain string, ansiFinal byte) bool {
+	if keyName == plain || strings.HasSuffix(keyName, "+"+plain) {
+		return true
+	}
+	return isArrowEscapeSequence(keyName, ansiFinal)
+}
+
+func isArrowEscapeSequence(value string, ansiFinal byte) bool {
+	body, ok := strings.CutPrefix(value, "\x1b")
+	if !ok || len(body) < 2 {
+		return false
+	}
+	switch body[0] {
+	case '[':
+		return body[len(body)-1] == ansiFinal
+	case 'O':
+		return len(body) == 2 && body[1] == ansiFinal
+	default:
+		return false
+	}
+}
diff --git a/internal/tui/flamegraph/model.go b/internal/tui/flamegraph/model.go
index b73368f..f65925a 100644
--- a/internal/tui/flamegraph/model.go
+++ b/internal/tui/flamegraph/model.go
@@ -940,94 +940,6 @@ func (m Model) visibleTraversalOrder() []int {
 	return visibleTraversalOrder(m.frames, m.searchQuery, m.filterVisible)
 }
 
-func keyString(msg tea.KeyPressMsg) string {
-	if s := msg.String(); s != "" {
-		return s
-	}
-	return msg.Text
-}
-
-func isSearchOpenKey(msg tea.KeyPressMsg) bool { return keyString(msg) == "/" }
-func isNextMatchKey(msg tea.KeyPressMsg) bool  { return keyString(msg) == "n" }
-func isPrevMatchKey(msg tea.KeyPressMsg) bool  { return keyString(msg) == "N" }
-func isPauseKey(msg tea.KeyPressMsg) bool {
-	k := keyString(msg)
-	return k == " " || k == "space" || msg.Code == tea.KeySpace
-}
-func isResetBaselineKey(msg tea.KeyPressMsg) bool {
-	return keyString(msg) == "r"
-}
-func isCycleOrderKey(msg tea.KeyPressMsg) bool { return keyString(msg) == "o" }
-func isCycleMetricKey(msg tea.KeyPressMsg) bool {
-	return keyString(msg) == "b"
-}
-func isToggleHeightKey(msg tea.KeyPressMsg) bool { return keyString(msg) == "v" }
-func isHelpToggleKey(msg tea.KeyPressMsg) bool   { return keyString(msg) == "?" }
-
-func isZoomInKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	return key.Matches(msg, keys.ZoomIn) || msg.Code == tea.KeyEnter || strings.EqualFold(keyString(msg), "enter")
-}
-
-func isZoomUndoKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	return key.Matches(msg, keys.ZoomUndo) || msg.Code == tea.KeyBackspace || msg.Code == tea.KeyEsc
-}
-
-func isZoomResetKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	return key.Matches(msg, keys.ZoomReset)
-}
-
-func isMoveShallowerKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	k := keyString(msg)
-	return key.Matches(msg, keys.MoveShallower) || msg.Code == tea.KeyDown || keyMatchesDirection(k, "down", 'B')
-}
-
-func isMoveDeeperKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	k := keyString(msg)
-	return key.Matches(msg, keys.MoveDeeper) || msg.Code == tea.KeyUp || keyMatchesDirection(k, "up", 'A')
-}
-
-func isPrevSiblingKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	k := keyString(msg)
-	return key.Matches(msg, keys.PrevSibling) || msg.Code == tea.KeyLeft || keyMatchesDirection(k, "left", 'D')
-}
-
-func isNextSiblingKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	k := keyString(msg)
-	return key.Matches(msg, keys.NextSibling) || msg.Code == tea.KeyRight || keyMatchesDirection(k, "right", 'C')
-}
-
-func isJumpTopKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	k := strings.ToLower(keyString(msg))
-	return key.Matches(msg, keys.JumpTop) || msg.Code == tea.KeyPgUp || k == "pgup" || k == "pageup"
-}
-
-func isJumpRootKey(msg tea.KeyPressMsg, keys flameKeyMap) bool {
-	k := strings.ToLower(keyString(msg))
-	return key.Matches(msg, keys.JumpRoot) || msg.Code == tea.KeyPgDown || k == "pgdown" || k == "pgdn" || k == "pagedown"
-}
-
-func keyMatchesDirection(keyName, plain string, ansiFinal byte) bool {
-	if keyName == plain || strings.HasSuffix(keyName, "+"+plain) {
-		return true
-	}
-	return isArrowEscapeSequence(keyName, ansiFinal)
-}
-
-func isArrowEscapeSequence(value string, ansiFinal byte) bool {
-	body, ok := strings.CutPrefix(value, "\x1b")
-	if !ok || len(body) < 2 {
-		return false
-	}
-	switch body[0] {
-	case '[':
-		return body[len(body)-1] == ansiFinal
-	case 'O':
-		return len(body) == 2 && body[1] == ansiFinal
-	default:
-		return false
-	}
-}
-
 // visibleRowOffset delegates row offset calculation to SelectionManager.
 func (m Model) visibleRowOffset() int {
 	return visibleRowOffset(m.frames, m.height, m.searchQuery, m.filterVisible)