# HG changeset patch
# User drewp@bigasterisk.com
# Date 1683579170 25200
# Node ID 9347277e831159f04c06bfeb09cd100c89d4e9f9
# Parent  3774ce9317a14ffabd76dd1a90c976ecfb6b4962
try a bit harder to notice <sg-source> children after <streamed-graph> startup

diff -r 3774ce9317a1 -r 9347277e8311 src/ConfiguredSources.ts
--- a/src/ConfiguredSources.ts	Mon May 08 13:31:46 2023 -0700
+++ b/src/ConfiguredSources.ts	Mon May 08 13:52:50 2023 -0700
@@ -46,7 +46,6 @@
 
   newSourceGraph(s: SourceGraph) {
     this.graph.newStore(s);
-    this.viewConfigMaybeChanged();
   }
   
   lostSourceGraph(s: SourceGraph) {
diff -r 3774ce9317a1 -r 9347277e8311 src/MultiStore.ts
--- a/src/MultiStore.ts	Mon May 08 13:31:46 2023 -0700
+++ b/src/MultiStore.ts	Mon May 08 13:52:50 2023 -0700
@@ -27,6 +27,11 @@
   }
 
   newStore(s: SourceGraph) {
+    for (let ts of this.stores) {
+      if (ts==s.store) {
+        return;
+      }
+    }
     this.stores.push(s.store);
     const p = new Patch(PatchDirection.ADD); // todo
     s.sourceGraphChanged.subscribe((p) => {
diff -r 3774ce9317a1 -r 9347277e8311 src/elements/streamed-graph/StreamedGraph.ts
--- a/src/elements/streamed-graph/StreamedGraph.ts	Mon May 08 13:31:46 2023 -0700
+++ b/src/elements/streamed-graph/StreamedGraph.ts	Mon May 08 13:52:50 2023 -0700
@@ -23,6 +23,8 @@
   @property() viewConfig: ViewConfig; // immutable, rebuilt when page or graph changes (in relevant ways)
   @state() statusSummary: TemplateResult[] = [html`...`];
 
+  private observeChildren?: MutationObserver;
+
   // @state() viewDirty: number = 0;
   static styles = [streamedGraphStyle];
   constructor() {
@@ -44,6 +46,10 @@
   firstUpdated(ch: PropertyValueMap<this>): void {
     super.firstUpdated(ch);
     this.scanChildNodesOnce();
+    this.observeChildren = new MutationObserver(() =>
+      this.scanChildNodesOnce()
+    );
+    this.observeChildren.observe(this, { childList: true });
     addFontToRootPage();
   }
 
@@ -77,6 +83,8 @@
     const st = el.sourceGraph;
     if (st) {
       this.sources.newSourceGraph(st);
+    } else {
+      console.warn("el has no sourceGraph yet", el);
     }
   }