From f5906587db0568cdf91211c311a2bc2acfaef43c Mon Sep 17 00:00:00 2001
From: Jan Prochazka <jan.prochazka@gmail.com>
Date: Thu, 13 Oct 2022 10:52:10 +0200
Subject: [PATCH] perspectives: prevent multi-load

---
 packages/web/src/perspectives/PerspectiveTable.svelte | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/web/src/perspectives/PerspectiveTable.svelte b/packages/web/src/perspectives/PerspectiveTable.svelte
index 4f7990c4a..32a9b97d0 100644
--- a/packages/web/src/perspectives/PerspectiveTable.svelte
+++ b/packages/web/src/perspectives/PerspectiveTable.svelte
@@ -57,6 +57,7 @@
   let errorMessage;
   let rowCount;
   let isLoading = false;
+  let isLoadQueued = false;
   const lastVisibleRowIndexRef = createRef(0);
   const disableLoadNextRef = createRef(false);
 
@@ -121,6 +122,12 @@
   }
 
   async function loadData(node: PerspectiveTreeNode, counts) {
+    if (isLoading) {
+      isLoadQueued = true;
+      return;
+    } else {
+      isLoadQueued = false;
+    }
     // console.log('LOADING', node);
     if (!node) return;
     const rows = [];
@@ -147,6 +154,10 @@
     //     loadProps.push(child.getNodeLoadProps());
     //   }
     // }
+
+    if (isLoadQueued) {
+      loadData(root, $loadedCounts);
+    }
   }
 
   export function openJson() {