Masonry: use MutationObserver instead

- originally tricks with the reactive system

src/platform/Masonry.tsx

@@ -5,10 +5,8 @@ import {
   type Ref,
   createRenderEffect,
   onCleanup,
-  children,
   createEffect,
   createSignal,
-  onMount,
 } from "solid-js";
 import { Dynamic, type DynamicProps } from "solid-js/web";
 import MasonryLayout from "masonry-layout";
@@ -20,7 +18,6 @@ type MasonryContainer =
   | Component<{
       ref?: Ref<Element>;
       class?: string;
-      children?: JSX.Element;
     }>;
 
 type ElementOf<T extends MasonryContainer> =
@@ -37,7 +34,10 @@ function forwardRef<T>(value: T, ref?: Ref<T>) {
   (ref as (value: T) => void)(value);
 }
 
-function createMasonry(element: Element, options: () => MasonryLayout.Options) {
+function createCompatMasonry(
+  element: Element,
+  options: () => MasonryLayout.Options,
+) {
   const layout = new MasonryLayout(element, {
     initLayout: false,
   });
@@ -46,11 +46,21 @@ function createMasonry(element: Element, options: () => MasonryLayout.Options) {
 
   const size = createElementSize(element);
 
+  const treeMutObx = new MutationObserver(() => {
+    layout.reloadItems?.();
+  });
+
+  onCleanup(() => treeMutObx.disconnect());
+
   createRenderEffect(() => {
     const opts = options();
     layout.option?.(opts);
   });
 
+  createRenderEffect(() => {
+    treeMutObx.observe(element, { childList: true });
+  });
+
   createRenderEffect(() => {
     const width = size.width; // only tracking width
     layout.layout?.();
@@ -61,8 +71,6 @@ function createMasonry(element: Element, options: () => MasonryLayout.Options) {
       layout.layout?.();
     });
   }
-
-  return layout;
 }
 
 const supportsCSSMasonryLayout = /* @__PURE__ */ CSS.supports(
@@ -85,9 +93,7 @@ if (import.meta.env.VITE_PLATFROM_MASONRY_ALWAYS_COMPAT) {
 function MasonryCompat<T extends MasonryContainer>(
   oprops: DynamicProps<T> & { class?: string },
 ) {
-  const [props, rest] = splitProps(oprops, ["ref", "children", "class"]);
+  const [props, rest] = splitProps(oprops, ["ref", "class"]);
-
-  const childrenComponents = children(() => props.children);
 
   return (
     <Dynamic
@@ -96,7 +102,7 @@ function MasonryCompat<T extends MasonryContainer>(
 
         const [columnGap, setColumnGap] = createSignal<number>();
 
-        const layout = createMasonry(element, () => {
+        createCompatMasonry(element, () => {
           return {
             gutter: columnGap(),
           };
@@ -115,18 +121,9 @@ function MasonryCompat<T extends MasonryContainer>(
             setColumnGap(Number(colGap.slice(0, colGap.length - 2)));
           }
         });
-
-        createRenderEffect(() => {
-          childrenComponents(); // just tracks
-          setTimeout(() => {
-            layout.reloadItems?.();
-            layout.layout?.();
-          }, 0);
-        });
       }}
       class={`Masonry CompatMasonry ${props.class || ""}`}
       {...rest}
-      children={childrenComponents}
     />
   );
 }