UI: Added check for DOM element existence before calling draw function

5 years ago · 314dbed121
1 changed files with 1 additions and 1 deletions
--- a/ui-ngx/src/app/shared/components/led-light.component.ts
+++ b/ui-ngx/src/app/shared/components/led-light.component.ts
@ -73,7 +73,7 @@ export class LedLightComponent implements OnInit, AfterViewInit, OnChanges {
    for (const propName of Object.keys(changes)) {
      const change = changes[propName];
      if (!change.firstChange && change.currentValue !== change.previousValue) {
-        if (propName === 'enabled') {
+        if (propName === 'enabled' && this.circleElement) {
          this.draw();
        } else if (propName === 'size') {
          this.update();