From db7279fbfae5a05a31ab4710b76c8ff50d31701e Mon Sep 17 00:00:00 2001
From: Edouard Paris <m@edouard.paris>
Date: Mon, 1 Apr 2019 18:30:25 +0200
Subject: [PATCH] views: help

---
 ui/controller.go | 10 ++++++++++
 ui/views/help.go | 24 ++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 ui/views/help.go

diff --git a/ui/controller.go b/ui/controller.go
index 2fbd17e..0e69073 100644
--- a/ui/controller.go
+++ b/ui/controller.go
@@ -96,6 +96,11 @@ func quit(g *gocui.Gui, v *gocui.View) error {
 	return gocui.ErrQuit
 }
 
+func Help(g *gocui.Gui, v *gocui.View) error {
+	maxX, maxY := g.Size()
+	return views.SetHelp(g, 0, -1, maxX, maxY)
+}
+
 func (c *controller) setKeyBinding(g *gocui.Gui) error {
 	err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit)
 	if err != nil {
@@ -112,6 +117,11 @@ func (c *controller) setKeyBinding(g *gocui.Gui) error {
 		return err
 	}
 
+	err = g.SetKeybinding("", gocui.KeyCtrlH, gocui.ModNone, Help)
+	if err != nil {
+		return err
+	}
+
 	return nil
 }
 
diff --git a/ui/views/help.go b/ui/views/help.go
new file mode 100644
index 0000000..9039639
--- /dev/null
+++ b/ui/views/help.go
@@ -0,0 +1,24 @@
+package views
+
+import (
+	"fmt"
+
+	"github.com/jroimartin/gocui"
+)
+
+const (
+	HELP = "help"
+)
+
+func SetHelp(g *gocui.Gui, x0, y0, x1, y1 int) error {
+	v, err := g.SetView(HELP, x0-1, y0, x1, y1)
+	if err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+	}
+	v.Frame = false
+	fmt.Fprintln(v, "HELP")
+	_, err = g.SetCurrentView(HELP)
+	return err
+}