added RootElem to event/effect global contexts

Author: sawka

tsunami/engine/globalctx.go

@@ -25,11 +25,13 @@ var globalCtxMutex sync.Mutex
 
 type EventContextImpl struct {
 	Event vdom.VDomEvent
+	Root  *RootElem
 }
 
 type EffectContextImpl struct {
 	WorkElem EffectWorkElem
 	WorkType string // "run" or "unmount"
+	Root     *RootElem
 }
 
 func setGlobalRenderContext(vc *RenderContextImpl) {

tsunami/engine/rootelem.go

@@ -262,7 +262,7 @@ func (r *RootElem) Event(event vdom.VDomEvent, globalEventHandler func(vdom.VDom
 		}
 	}()
 
-	eventCtx := &EventContextImpl{Event: event}
+	eventCtx := &EventContextImpl{Event: event, Root: r}
 	withGlobalEventCtx(eventCtx, func() any {
 		if event.GlobalEventType != "" {
 			if globalEventHandler == nil {
@@ -299,6 +299,7 @@ func (r *RootElem) runEffectUnmount(work *EffectWorkElem, hook *Hook) {
 	effectCtx := &EffectContextImpl{
 		WorkElem: *work,
 		WorkType: "unmount",
+		Root:     r,
 	}
 	withGlobalEffectCtx(effectCtx, func() any {
 		hook.UnmountFn()
@@ -321,6 +322,7 @@ func (r *RootElem) runEffect(work *EffectWorkElem, hook *Hook) {
 	effectCtx := &EffectContextImpl{
 		WorkElem: *work,
 		WorkType: "run",
+		Root:     r,
 	}
 	unmountFn := withGlobalEffectCtx(effectCtx, func() func() {
 		return hook.Fn()