Nested WACZ + embed reloading fix (#374)

- Loading: Fix for loading nested WACZ files (via wabac.js 2.20.7)
- Embeds: Support full reload on embeds via fullReload() call on embed
web component

src/embed.ts

@@ -126,6 +126,13 @@ class Embed extends LitElement {
     }
   }
 
+  fullReload() {
+    const iframe = this.renderRoot.querySelector("iframe");
+    if (iframe?.contentWindow) {
+      iframe.contentWindow.postMessage({ type: "fullReload" });
+    }
+  }
+
   handleMessage(event: IframeMessage) {
     const iframe = this.renderRoot.querySelector("iframe");
 

src/item.ts

@@ -229,6 +229,16 @@ class Item extends LitElement {
 
       this.observer.observe(this);
     }
+
+    if (this.embed) {
+      window.addEventListener("message", (event: MessageEvent) => {
+        if (event.source === window.parent) {
+          if (event.data.type === "fullReload") {
+            void this.deleteFully(true);
+          }
+        }
+      });
+    }
   }
 
   async runUpdateLoop() {