gocui: working towards correct layout

    make a gocui widget binary tree
    more debugging cleanups
    sample button app displays in gocui
    geometry logic closer to correct
    improvements in gocui layout
    continued attempts to clean up tabs
    dump binary tree
    moving towards proper chan callback()
    deprecate Widget.Name

Signed-off-by: Jeff Carr <[email protected]>

1 files changed, 31 insertions, 2 deletions

diff --git a/button.go b/button.go
index a6026a1..8820734 100644
--- a/button.go
+++ b/button.go
@@ -15,6 +15,35 @@ func (n *Node) NewButton(name string, custom func()) *Node {
 	return newNode
 }
 
-func callback(i int) {
-	log(debugError, "button callback() i =", i)
+func callback(i int) bool {
+	log(debugError, "callback() for widget id =", i)
+	n := Config.rootNode.FindId(i)
+	log(debugError, "callback() found node =", n)
+	// running custom here means the button get's clicked twice
+	if (n.Custom == nil) {
+		log(debugError, "callback() = nil. SKIPPING")
+		return false
+	}
+	n.Custom()
+	return true
 }
+
+// find widget by number
+func (n *Node) FindId(i int) (*Node) {
+	if (n == nil) {
+		return nil
+	}
+
+	if (n.id == i) {
+		return n
+	}
+
+	for _, child := range n.children {
+		newN := child.FindId(i)
+		if (newN != nil) {
+			return newN
+		}
+	}
+	return nil
+}
+