Pbjs Utils: add getDomLoadingDuration() and remove dupe code

modules/adagioRtdProvider.js

@@ -15,6 +15,7 @@ import {
   deepAccess,
   deepSetValue,
   generateUUID,
+  getDomLoadingDuration,
   getUniqueIdentifierStr,
   getWindowSelf,
   getWindowTop,
@@ -131,12 +132,14 @@ const _FEATURES = (function() {
       features.data = {};
     },
     get: function() {
+      const w = (canAccessWindowTop()) ? getWindowTop() : getWindowSelf();
+
       if (!features.initialized) {
         features.data = {
           page_dimensions: getPageDimensions().toString(),
           viewport_dimensions: getViewPortDimensions().toString(),
           user_timestamp: getTimestampUTC().toString(),
-          dom_loading: getDomLoadingDuration().toString(),
+          dom_loading: getDomLoadingDuration(w).toString(),
         };
         features.initialized = true;
       }
@@ -538,22 +541,6 @@ function getTimestampUTC() {
   return Math.floor(new Date().getTime() / 1000) - new Date().getTimezoneOffset() * 60;
 }
 
-function getDomLoadingDuration() {
-  const w = (canAccessWindowTop()) ? getWindowTop() : getWindowSelf();
-  const performance = w.performance;
-
-  let domLoadingDuration = -1;
-
-  if (performance && performance.timing && performance.timing.navigationStart > 0) {
-    const val = performance.timing.domLoading - performance.timing.navigationStart;
-    if (val > 0) {
-      domLoadingDuration = val;
-    }
-  }
-
-  return domLoadingDuration;
-}
-
 /**
  * registerEventsForAdServers bind adagio listeners to ad-server events.
  * Theses events are used to track the viewability and attention.

modules/bliinkBidAdapter.js

@@ -1,6 +1,6 @@
 import { registerBidder } from '../src/adapters/bidderFactory.js'
 import { config } from '../src/config.js'
-import { _each, deepAccess, deepSetValue, getWindowSelf, getWindowTop } from '../src/utils.js'
+import { _each, canAccessWindowTop, deepAccess, deepSetValue, getDomLoadingDuration, getWindowSelf, getWindowTop } from '../src/utils.js'
 export const BIDDER_CODE = 'bliink'
 export const GVL_ID = 658
 export const BLIINK_ENDPOINT_ENGINE = 'https://engine.bliink.io/prebid'
@@ -121,35 +121,6 @@ export function getKeywords() {
   return [];
 }
 
-function canAccessTopWindow() {
-  try {
-    if (getWindowTop().location.href) {
-      return true;
-    }
-  } catch (error) {
-    return false;
-  }
-}
-
-/**
- * domLoading feature is computed on window.top if reachable.
- */
-export function getDomLoadingDuration() {
-  let domLoadingDuration = -1;
-  let performance;
-
-  performance = (canAccessTopWindow()) ? getWindowTop().performance : getWindowSelf().performance;
-
-  if (performance && performance.timing && performance.timing.navigationStart > 0) {
-    const val = performance.timing.domLoading - performance.timing.navigationStart;
-    if (val > 0) {
-      domLoadingDuration = val;
-    }
-  }
-
-  return domLoadingDuration;
-}
-
 /**
  * @param bidResponse
  * @return {({cpm, netRevenue: boolean, requestId, width: number, currency, ttl: number, creativeId, height: number}&{mediaType: string, vastXml})|null}
@@ -208,7 +179,8 @@ export const isBidRequestValid = (bid) => {
  */
 export const buildRequests = (validBidRequests, bidderRequest) => {
   if (!validBidRequests || !bidderRequest || !bidderRequest.bids) return null
-  const domLoadingDuration = getDomLoadingDuration().toString();
+  const w = (canAccessWindowTop()) ? getWindowTop() : getWindowSelf();
+  const domLoadingDuration = getDomLoadingDuration(w).toString();
   const tags = bidderRequest.bids.map((bid) => {
     let bidFloor;
     const sizes = bid.sizes.map((size) => ({ w: size[0], h: size[1] }));

src/utils.js

@@ -693,6 +693,33 @@ export function getPerformanceNow() {
   return (window.performance && window.performance.now && window.performance.now()) || 0;
 }
 
+/**
+ * Retuns the difference between `timing.domLoading` and `timing.navigationStart`.
+ * This function uses the deprecated `Performance.timing` API and should be removed in future.
+ * It has not been updated yet because it is still used in some modules.
+ * @deprecated
+ * @param {Window} w The window object used to perform the api call. default to window.self
+ * @returns {number}
+ */
+export function getDomLoadingDuration(w) {
+  let domLoadingDuration = -1;
+
+  w = w || getWindowSelf();
+
+  const performance = w.performance;
+
+  if (w.performance?.timing) {
+    if (w.performance.timing.navigationStart > 0) {
+      const val = performance.timing.domLoading - performance.timing.navigationStart;
+      if (val > 0) {
+        domLoadingDuration = val;
+      }
+    }
+  }
+
+  return domLoadingDuration;
+}
+
 /**
  * When the deviceAccess flag config option is false, no cookies should be read or set
  * @returns {boolean}

test/spec/modules/bliinkBidAdapter_spec.js

@@ -7,9 +7,14 @@ import {
   BLIINK_ENDPOINT_COOKIE_SYNC_IFRAME,
   getEffectiveConnectionType,
   getUserIds,
-  getDomLoadingDuration,
   GVL_ID,
 } from 'modules/bliinkBidAdapter.js';
+import {
+  canAccessWindowTop,
+  getDomLoadingDuration,
+  getWindowSelf,
+  getWindowTop
+} from 'src/utils.js';
 import { config } from 'src/config.js';
 
 /**
@@ -32,8 +37,9 @@ import { config } from 'src/config.js';
  * ortb2Imp: {ext: {data: {pbadslot: string}}}}}
  */
 
+const w = (canAccessWindowTop()) ? getWindowTop() : getWindowSelf();
 const connectionType = getEffectiveConnectionType();
-const domLoadingDuration = getDomLoadingDuration().toString();
+const domLoadingDuration = getDomLoadingDuration(w).toString();
 const getConfigBid = (placement) => {
   return {
     adUnitCode: '/19968336/test',