doodle/ui/debug.go

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488 B
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package ui
import "strings"
// WidgetTree returns a string representing the tree of widgets starting
// at a given widget.
func WidgetTree(root Widget) []string {
var crawl func(int, Widget) []string
crawl = func(depth int, node Widget) []string {
var (
prefix = strings.Repeat(" ", depth)
lines = []string{prefix + node.ID()}
)
for _, child := range node.Children() {
lines = append(lines, crawl(depth+1, child)...)
}
return lines
}
return crawl(0, root)
}