Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/devtools/client/debugger/src/utils/result-list.js b/devtools/client/debugger/src/utils/result-list.js
new file mode 100644
index 0000000000..c8fe97ade6
--- /dev/null
+++ b/devtools/client/debugger/src/utils/result-list.js
@@ -0,0 +1,26 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+export function scrollList(resultList, index) {
+  if (!resultList.hasOwnProperty(index)) {
+    return;
+  }
+
+  const resultEl = resultList[index];
+
+  const scroll = () => {
+    // Avoid expensive DOM computations involved in scrollIntoView
+    // https://nolanlawson.com/2018/09/25/accurately-measuring-layout-on-the-web/
+    requestAnimationFrame(() => {
+      setTimeout(() => {
+        if (!resultEl.scrollIntoView) {
+          return;
+        }
+        resultEl.scrollIntoView({ block: "nearest", behavior: "auto" });
+      });
+    });
+  };
+
+  scroll();
+}