gocui: code cleanups

Signed-off-by: Jeff Carr <jcarr@wit.com>

toolkit/gocui/add.go

@@ -48,8 +48,12 @@ func (w *cuiWidget) addWidget() {
 		w.showView()
 		return
 	case toolkit.Tab:
-		w.setTabWH()
-		w.showView()
+		UnsetCurrent(me.rootNode)
+		me.rootNode.hideWidgets()
+		w.isCurrent = true
+		w.parent.isCurrent = true
+		w.placeWidgets()
+		w.showWidgets()
 		return
 	case toolkit.Box:
 		w.isFake = true

toolkit/gocui/click.go

@@ -19,6 +19,27 @@ func UnsetCurrent(w *cuiWidget) {
 	}
 }
 
+func updateCurrentTabs() {
+	me.rootNode.nextW = 0
+	me.rootNode.nextH = 0
+	me.rootNode.redoTabs(true)
+}
+
+// shows the widgets in a tab
+func setCurrent(w *cuiWidget) {
+	if w.widgetType != toolkit.Tab {
+		return
+	}
+	me.current = w
+	UnsetCurrent(me.rootNode)
+	me.rootNode.hideWidgets()
+	w.isCurrent = true
+	w.parent.isCurrent = true
+	updateCurrentTabs()
+	w.placeWidgets()
+	w.showWidgets()
+}
+
 func (w *cuiWidget) doWidgetClick() {
 	switch w.widgetType {
 	case toolkit.Root:
@@ -50,13 +71,7 @@ func (w *cuiWidget) doWidgetClick() {
 		w.showWidgets()
 		// THIS IS THE BEGINING OF THE LAYOUT
 	case toolkit.Tab:
-		UnsetCurrent(me.rootNode)
-
-		me.rootNode.hideWidgets()
-		w.isCurrent = true
-		w.parent.isCurrent = true
-		w.placeWidgets()
-		w.showWidgets()
+		setCurrent(w)
 	case toolkit.Group:
 		w.placeWidgets()
 		w.toggleTree()

toolkit/gocui/structs.go

@@ -24,6 +24,7 @@ type config struct {
 	baseGui *gocui.Gui // the main gocui handle
 	rootNode *cuiWidget // the base of the binary tree. it should have id == 0
 	ctrlDown *cuiWidget // shown if you click the mouse when the ctrl key is pressed
+	current *cuiWidget // this is the current tab or window to show
 
 	// this is the channel we send user events like
 	// mouse clicks or keyboard events back to the program