Fixed cringe bug with focus requests being improperly handled

elements/basic/container.go

@@ -20,8 +20,6 @@ type Container struct {
 	layout    layouts.Layout
 	children  []layouts.LayoutEntry
 	warping   bool
-	focused   bool
-	focusable bool
 	flexible  bool
 	
 	config config.Wrapped
@@ -277,23 +275,23 @@ func (element *Container) forFlexible (callback func (child elements.Flexible) b
 }
 
 func (element *Container) reflectChildProperties () {
-	element.focusable = false
+	focusable := false
 	for _, entry := range element.children {
 		_, focusable := entry.Element.(elements.Focusable)
 		if focusable {
-			element.focusable = true
+			focusable = true
 			break
 		}
 	}
+	if !focusable && element.Focused() {
+		element.Propagator.HandleUnfocus()
+	}
 	
 	element.flexible = false
 	element.forFlexible (func (elements.Flexible) bool {
 		element.flexible = true
 		return false
 	})
-	if !element.focusable {
-		element.focused = false
-	}
 }
 
 func (element *Container) childFocusRequestCallback (
@@ -302,23 +300,14 @@ func (element *Container) childFocusRequestCallback (
 	granted bool,
 ) {
 	if element.onFocusRequest != nil && element.onFocusRequest() {
-		element.focused = true
-		element.unfocusAllChildren()
+		element.Propagator.HandleUnfocus()
+		element.Propagator.HandleFocus(input.KeynavDirectionNeutral)
 		return true
 	} else {
 		return false
 	}
 }
 
-func (element *Container) unfocusAllChildren() {
-	for _, entry := range element.children {
-		child, focusable := entry.Element.(elements.Focusable)
-		if focusable && child.Focused() {
-			child.HandleUnfocus()
-		}
-	}
-}
-
 func (element *Container) updateMinimumSize () {
 	margin  := element.theme.Margin(theme.PatternBackground)
 	padding := element.theme.Padding(theme.PatternBackground)

elements/core/propagator.go

@@ -66,15 +66,21 @@ func (propagator *Propagator) HandleFocus (direction input.KeynavDirection) (acc
 		// the first or last focusable element depending on the
 		// direction.
 		switch direction {
-		case input.KeynavDirectionNeutral, input.KeynavDirectionForward:
-			// if we recieve a neutral or forward direction, focus
-			// the first focusable element.
+		case input.KeynavDirectionForward:
+			// if we recieve a forward direction, focus the first
+			// focusable element.
 			return propagator.focusFirstFocusableElement(direction)
 		
 		case input.KeynavDirectionBackward:
 			// if we recieve a backward direction, focus the last
 			// focusable element.
 			return propagator.focusLastFocusableElement(direction)
+
+		case input.KeynavDirectionNeutral:
+			// if we recieve a neutral direction, just focus this
+			// element and nothing else.
+			propagator.focused = true
+			return true
 		}
 	} else {
 		// an element is currently focused, so we need to move the