backends/x/window.go

@@ -89,7 +89,7 @@ func (window *Window) Adopt (child tomo.Element) {
 		child.SetParentHooks (tomo.ParentHooks {
 			Draw: window.childDrawCallback,
 			MinimumSizeChange: window.childMinimumSizeChangeCallback,
-			ExpandingHeightChange: window.resizeChildToFit,
+			FlexibleHeightChange: window.resizeChildToFit,
 			SelectionRequest: window.childSelectionRequestCallback,
 		})
 		

element.go

@@ -16,9 +16,9 @@ type ParentHooks struct {
 	// event.
 	MinimumSizeChange func (width, height int)
 
-	// ExpandingHeightChange is called when the parameters affecting the
+	// FlexibleHeightChange is called when the parameters affecting the
 	// element's expanding height have changed.
-	ExpandingHeightChange func ()
+	FlexibleHeightChange func ()
 	
 	// SelectionRequest is called when the child element element wants
 	// itself to be selected. If the parent element chooses to grant the
@@ -46,11 +46,11 @@ func (hooks ParentHooks) RunMinimumSizeChange (width, height int) {
 	}
 }
 
-// RunExpandingHeightChange runs the ExpandingHeightChange hook if it is not
+// RunFlexibleHeightChange runs the ExpandingHeightChange hook if it is not
 // nil. If it is nil, it does nothing.
-func (hooks ParentHooks) RunExpandingHeightChange () {
+func (hooks ParentHooks) RunFlexibleHeightChange () {
-	if hooks.ExpandingHeightChange != nil {
+	if hooks.FlexibleHeightChange != nil {
-		hooks.ExpandingHeightChange()
+		hooks.FlexibleHeightChange()
 	}
 }
 

elements/basic/container.go

@@ -18,6 +18,7 @@ type Container struct {
 	warping    bool
 	selected   bool
 	selectable bool
+	flexible   bool
 }
 
 // NewContainer creates a new container.
@@ -49,6 +50,7 @@ func (element *Container) Adopt (child tomo.Element, expand bool) {
 		MinimumSizeChange: func (int, int) {
 			element.updateMinimumSize()
 		},
+		FlexibleHeightChange: element.updateMinimumSize,
 		SelectionRequest: func () (granted bool) {
 			child, selectable := child.(tomo.Selectable)
 			if !selectable { return }