fix arrow up & down on scrolling stdout

1 files changed, 22 insertions, 4 deletions

diff --git a/eventBindingsStdout.go b/eventBindingsStdout.go
index f1c574e..8387ea2 100644
--- a/eventBindingsStdout.go
+++ b/eventBindingsStdout.go
@@ -77,14 +77,12 @@ func stdoutHome(g *gocui.Gui, v *gocui.View) error {
 }
 
 func stdoutArrowUp(g *gocui.Gui, v *gocui.View) error {
-	me.stdout.pager += 1
-	me.stdout.tk.refreshStdout()
+	stdoutWheelsUp()
 	return nil
 }
 
 func stdoutArrowDown(g *gocui.Gui, v *gocui.View) error {
-	me.stdout.pager -= 1
-	me.stdout.tk.refreshStdout()
+	stdoutWheelsDown()
 	return nil
 }
 
@@ -103,3 +101,23 @@ func stdoutPgdn(g *gocui.Gui, v *gocui.View) error {
 	tk.refreshStdout()
 	return nil
 }
+
+// scrolling up with the mouse wheel (or trackpad)
+func stdoutWheelsUp() {
+	// log.Info("private wheels up")
+	me.stdout.pager -= 2
+	if me.stdout.pager < 0 {
+		me.stdout.pager = 0
+	}
+	me.stdout.tk.refreshStdout()
+}
+
+// scrolling down with the mouse wheel (or trackpad)
+func stdoutWheelsDown() {
+	// log.Info("you've landed")
+	me.stdout.pager += 2
+	if me.stdout.pager > len(me.stdout.outputS) {
+		me.stdout.pager = len(me.stdout.outputS)
+	}
+	me.stdout.tk.refreshStdout()
+}