Fix timing problem on jumping to linked line number in source view

scm-ui/ui-components/src/useScrollToElement.ts

@@ -0,0 +1,57 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020-present Cloudogu GmbH and Contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+import { useEffect } from "react";
+
+const useScrollToElement = (
+  contentRef: HTMLElement | null | undefined,
+  elementSelectorResolver: () => string | undefined,
+  ...dependencies: any
+) => {
+  useEffect(() => {
+    const elementSelector = elementSelectorResolver();
+    if (contentRef && elementSelector) {
+      // We defer the content check until after the syntax-highlighter has rendered
+      let tries = 0;
+      const intervalId = setInterval(() => {
+        if (tries >= 15) {
+          clearInterval(intervalId);
+        } else {
+          tries++;
+          const element = contentRef.querySelector(elementSelector);
+          if (element && element.scrollIntoView) {
+            clearInterval(intervalId);
+            element.scrollIntoView();
+          }
+        }
+      }, 200);
+
+      return () => {
+        clearInterval(intervalId);
+      };
+    }
+  }, [contentRef, ...dependencies]);
+};
+
+export default useScrollToElement;