commit b54af7e

editor: handle HOME and END keys

 1@@ -219,6 +219,10 @@ func (app *App) handleUIEvent(ev tcell.Event) {
 2 			} else {
 3 				app.win.InputLeft()
 4 			}
 5+		case tcell.KeyHome:
 6+			app.win.InputHome()
 7+		case tcell.KeyEnd:
 8+			app.win.InputEnd()
 9 		case tcell.KeyBackspace2:
10 			ok := app.win.InputBackspace()
11 			if ok && app.win.InputLen() == 0 {

 1@@ -122,6 +122,18 @@ func (e *editor) Left() {
 2 	}
 3 }
 4 
 5+func (e *editor) Home() {
 6+	e.cursorIdx = 0
 7+	e.offsetIdx = 0
 8+}
 9+
10+func (e *editor) End() {
11+	e.cursorIdx = len(e.text)
12+	for e.width < e.textWidth[e.cursorIdx]-e.textWidth[e.offsetIdx]+16 {
13+		e.offsetIdx++
14+	}
15+}
16+
17 func (e *editor) Draw(screen tcell.Screen, y int) {
18 	st := tcell.StyleDefault
19 

 1@@ -156,6 +156,16 @@ func (ui *UI) InputLeft() {
 2 	ui.draw()
 3 }
 4 
 5+func (ui *UI) InputHome() {
 6+	ui.e.Home()
 7+	ui.draw()
 8+}
 9+
10+func (ui *UI) InputEnd() {
11+	ui.e.End()
12+	ui.draw()
13+}
14+
15 func (ui *UI) InputBackspace() (ok bool) {
16 	ok = ui.e.RemRune()
17 	if ok {