driver

func WalkObjectTree ¶

func WalkObjectTree(
	obj fyne.CanvasObject,
	beforeChildren func(fyne.CanvasObject, fyne.Position, fyne.Position, fyne.Size) bool,
	afterChildren func(fyne.CanvasObject, fyne.CanvasObject),
) bool

WalkObjectTree will walk an object tree executing the passed functions following the following rules: - beforeChildren is called for the start obj before traversing its children - the obj's children are traversed by calling walkObjects on each of them - afterChildren is called for the obj after traversing the obj's children The walk can be aborted by returning true in one of the functions:

• if beforeChildren returns true, further traversing is stopped immediately, the after function will not be called for the obj where the walk stopped, however, it will be called for all its parents