fix(core/tooltip): null before register event listener to trigger (#1251

) Co-authored-by: Lukas Maurer <[email protected]>
siemens · May 8, 2024 · 346fb9a · 346fb9a
1 parent 57fa028
commit 346fb9a
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diff --git a/.changeset/popular-crabs-reply.md b/.changeset/popular-crabs-reply.md
@@ -0,0 +1,5 @@
+---
+"@siemens/ix": patch
+---
+
+fix(core/tooltip): null check before event listener gets registered on trigger
diff --git a/packages/core/src/components/tooltip/tooltip.tsx b/packages/core/src/components/tooltip/tooltip.tsx
@@ -231,7 +231,7 @@ export class Tooltip implements IxOverlayComponent {
     }
   }
 
-  private async queryAnchorElements(): Promise<Array<HTMLElement>> {
+  private async queryAnchorElements(): Promise<Array<HTMLElement> | undefined> {
     if (typeof this.for === 'string') {
       return Promise.resolve(Array.from(document.querySelectorAll(this.for)));
     }
@@ -253,6 +253,10 @@ export class Tooltip implements IxOverlayComponent {
       this.disposeListener();
     }
 
+    if (!triggerElementList) {
+      return;
+    }
+
     triggerElementList.forEach((element) => {
       const onMouseEnter = () => {
         this.showTooltip(element);