Add bindable double-click event (#374)

src/curses/curses.go

@@ -50,6 +50,7 @@ const (
 
 	Invalid
 	Mouse
+	DoubleClick
 
 	BTab
 	BSpace

src/options.go

@@ -343,6 +343,8 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = curses.SLeft
 		case "shift-right":
 			chord = curses.SRight
+		case "double-click":
+			chord = curses.DoubleClick
 		default:
 			if len(key) == 6 && strings.HasPrefix(lkey, "ctrl-") && isAlphabet(lkey[5]) {
 				chord = curses.CtrlA + int(lkey[5]) - 'a'

src/terminal.go

@@ -180,6 +180,7 @@ func defaultKeymap() map[int]actionType {
 
 	keymap[C.Rune] = actRune
 	keymap[C.Mouse] = actMouse
+	keymap[C.DoubleClick] = actAccept
 	return keymap
 }
 
@@ -858,6 +859,8 @@ func (t *Terminal) Loop() {
 				action = act
 			}
 		}
+		var doAction func(actionType) bool
+		doAction = func(action actionType) bool {
 			switch action {
 			case actIgnore:
 			case actExecute:
@@ -867,12 +870,12 @@ func (t *Terminal) Loop() {
 				}
 			case actInvalid:
 				t.mutex.Unlock()
-			continue
+				return false
 			case actToggleSort:
 				t.sort = !t.sort
 				t.eventBox.Set(EvtSearchNew, t.sort)
 				t.mutex.Unlock()
-			continue
+				return false
 			case actBeginningOfLine:
 				t.cx = 0
 			case actBackwardChar:
@@ -1040,7 +1043,7 @@ func (t *Terminal) Loop() {
 						// Double-click
 						if my >= min {
 							if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
-							req(reqClose)
+								return doAction(t.keymap[C.DoubleClick])
 							}
 						}
 					} else if me.Down {
@@ -1057,6 +1060,11 @@ func (t *Terminal) Loop() {
 					}
 				}
 			}
+			return true
+		}
+		if !doAction(action) {
+			continue
+		}
 		changed := string(previousInput) != string(t.input)
 		t.mutex.Unlock() // Must be unlocked before touching reqBox