Initial Commit

node_modules/web-vitals/dist/modules/lib/getLoadState.js

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { getNavigationEntry } from './getNavigationEntry.js';
+export const getLoadState = (timestamp) => {
+    if (document.readyState === 'loading') {
+        // If the `readyState` is 'loading' there's no need to look at timestamps
+        // since the timestamp has to be the current time or earlier.
+        return 'loading';
+    }
+    else {
+        const navigationEntry = getNavigationEntry();
+        if (navigationEntry) {
+            if (timestamp < navigationEntry.domInteractive) {
+                return 'loading';
+            }
+            else if (navigationEntry.domContentLoadedEventStart === 0 ||
+                timestamp < navigationEntry.domContentLoadedEventStart) {
+                // If the `domContentLoadedEventStart` timestamp has not yet been
+                // set, or if the given timestamp is less than that value.
+                return 'dom-interactive';
+            }
+            else if (navigationEntry.domComplete === 0 ||
+                timestamp < navigationEntry.domComplete) {
+                // If the `domComplete` timestamp has not yet been
+                // set, or if the given timestamp is less than that value.
+                return 'dom-content-loaded';
+            }
+        }
+    }
+    // If any of the above fail, default to loaded. This could really only
+    // happy if the browser doesn't support the performance timeline, which
+    // most likely means this code would never run anyway.
+    return 'complete';
+};