54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
import { WINDOW } from '../../types.js';
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/*
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const getNavigationEntryFromPerformanceTiming = () => {
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// eslint-disable-next-line deprecation/deprecation
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const timing = WINDOW.performance.timing;
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// eslint-disable-next-line deprecation/deprecation
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const type = WINDOW.performance.navigation.type;
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const navigationEntry = {
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entryType: 'navigation',
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startTime: 0,
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type: type == 2 ? 'back_forward' : type === 1 ? 'reload' : 'navigate',
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};
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for (const key in timing) {
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if (key !== 'navigationStart' && key !== 'toJSON') {
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// eslint-disable-next-line deprecation/deprecation
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navigationEntry[key] = Math.max((timing[key ] ) - timing.navigationStart, 0);
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}
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}
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return navigationEntry ;
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};
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const getNavigationEntry = () => {
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if (WINDOW.__WEB_VITALS_POLYFILL__) {
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return (
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WINDOW.performance &&
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((performance.getEntriesByType && performance.getEntriesByType('navigation')[0]) ||
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getNavigationEntryFromPerformanceTiming())
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);
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} else {
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return WINDOW.performance && performance.getEntriesByType && performance.getEntriesByType('navigation')[0];
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}
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};
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export { getNavigationEntry };
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//# sourceMappingURL=getNavigationEntry.js.map
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