Rename getXXX functions to onXXX

src/deprecated.ts

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2020 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.
+ */
+
+export {onCLS as getCLS} from './onCLS.js';
+export {onFCP as getFCP} from './onFCP.js';
+export {onFID as getFID} from './onFID.js';
+export {onINP as getINP} from './onINP.js';
+export {onLCP as getLCP} from './onLCP.js';
+export {onTTFB as getTFB} from './onTTFB.js';

src/index.ts

@@ -14,11 +14,12 @@
  * limitations under the License.
  */
 
-export {getCLS} from './getCLS.js';
-export {getFCP} from './getFCP.js';
-export {getFID} from './getFID.js';
-export {getINP} from './getINP.js';
-export {getLCP} from './getLCP.js';
-export {getTTFB} from './getTTFB.js';
+export {onCLS} from './onCLS.js';
+export {onFCP} from './onFCP.js';
+export {onFID} from './onFID.js';
+export {onINP} from './onINP.js';
+export {onLCP} from './onLCP.js';
+export {onTTFB} from './onTTFB.js';
 
+export * from './deprecated.js';
 export * from './types.js';

src/getCLS.ts → src/onCLS.ts

@@ -19,18 +19,18 @@ import {initMetric} from './lib/initMetric.js';
 import {observe} from './lib/observe.js';
 import {onHidden} from './lib/onHidden.js';
 import {bindReporter} from './lib/bindReporter.js';
-import {getFCP} from './getFCP.js';
+import {onFCP} from './onFCP.js';
 import {LayoutShift, Metric, ReportHandler} from './types.js';
 
 
 let isMonitoringFCP = false;
 let fcpValue = -1;
 
-export const getCLS = (onReport: ReportHandler, reportAllChanges?: boolean) => {
+export const onCLS = (onReport: ReportHandler, reportAllChanges?: boolean) => {
   // Start monitoring FCP so we can only report CLS if FCP is also reported.
   // Note: this is done to match the current behavior of CrUX.
   if (!isMonitoringFCP) {
-    getFCP((metric) => {
+    onFCP((metric) => {
       fcpValue = metric.value;
     });
     isMonitoringFCP = true;

src/getFCP.ts → src/onFCP.ts

@@ -22,7 +22,7 @@ import {observe} from './lib/observe.js';
 import {Metric, ReportHandler} from './types.js';
 
 
-export const getFCP = (onReport: ReportHandler, reportAllChanges?: boolean) => {
+export const onFCP = (onReport: ReportHandler, reportAllChanges?: boolean) => {
   const visibilityWatcher = getVisibilityWatcher();
   let metric = initMetric('FCP');
   let report: ReturnType<typeof bindReporter>;

src/getFID.ts → src/onFID.ts

@@ -24,7 +24,7 @@ import {firstInputPolyfill, resetFirstInputPolyfill} from './lib/polyfills/first
 import {FirstInputPolyfillCallback, Metric, PerformanceEventTiming, ReportHandler} from './types.js';
 
 
-export const getFID = (onReport: ReportHandler, reportAllChanges?: boolean) => {
+export const onFID = (onReport: ReportHandler, reportAllChanges?: boolean) => {
   const visibilityWatcher = getVisibilityWatcher();
   let metric = initMetric('FID');
   let report: ReturnType<typeof bindReporter>;

src/getINP.ts → src/onINP.ts

@@ -104,7 +104,7 @@ const estimateP98LongestInteraction = () => {
 	return longestInteractionList[candidateInteractionIndex];
 }
 
-export const getINP = (onReport: ReportHandler, reportAllChanges?: boolean) => {
+export const onINP = (onReport: ReportHandler, reportAllChanges?: boolean) => {
   // TODO(philipwalton): remove once the polyfill is no longer needed.
   initInteractionCountPolyfill();
 

src/getLCP.ts → src/onLCP.ts

@@ -25,7 +25,7 @@ import {Metric, ReportHandler} from './types.js';
 
 const reportedMetricIDs: Record<string, boolean> = {};
 
-export const getLCP = (onReport: ReportHandler, reportAllChanges?: boolean) => {
+export const onLCP = (onReport: ReportHandler, reportAllChanges?: boolean) => {
   const visibilityWatcher = getVisibilityWatcher();
   let metric = initMetric('LCP');
   let report: ReturnType<typeof bindReporter>;

src/getTTFB.ts → src/onTTFB.ts

@@ -31,7 +31,7 @@ const afterLoad = (callback: () => void) => {
   }
 }
 
-export const getTTFB = (onReport: ReportHandler, reportAllChanges?: boolean) => {
+export const onTTFB = (onReport: ReportHandler, reportAllChanges?: boolean) => {
   let metric = initMetric('TTFB');
   let report = bindReporter(onReport, metric, reportAllChanges);
 

test/e2e/getCLS-test.js → test/e2e/onCLS-test.js

@@ -23,7 +23,7 @@ const {stubForwardBack} = require('../utils/stubForwardBack.js');
 const {stubVisibilityChange} = require('../utils/stubVisibilityChange.js');
 
 
-describe('getCLS()', async function() {
+describe('onCLS()', async function() {
   // Retry all tests in this suite up to 2 times.
   this.retries(2);
 

test/e2e/getFCP-test.js → test/e2e/onFCP-test.js

@@ -20,7 +20,7 @@ const {browserSupportsEntry} = require('../utils/browserSupportsEntry.js');
 const {stubForwardBack} = require('../utils/stubForwardBack.js');
 const {stubVisibilityChange} = require('../utils/stubVisibilityChange.js');
 
-describe('getFCP()', async function() {
+describe('onFCP()', async function() {
   // Retry all tests in this suite up to 2 times.
   this.retries(2);
 

test/e2e/getFID-test.js → test/e2e/onFID-test.js

@@ -21,7 +21,7 @@ const {stubForwardBack} = require('../utils/stubForwardBack.js');
 const {stubVisibilityChange} = require('../utils/stubVisibilityChange.js');
 
 
-describe('getFID()', async function() {
+describe('onFID()', async function() {
   // Retry all tests in this suite up to 2 times.
   this.retries(2);
 

test/e2e/getINP-test.js → test/e2e/onINP-test.js

@@ -21,7 +21,7 @@ const {stubForwardBack} = require('../utils/stubForwardBack.js');
 const {stubVisibilityChange} = require('../utils/stubVisibilityChange.js');
 
 
-describe('getINP()', async function() {
+describe('onINP()', async function() {
   // Retry all tests in this suite up to 2 times.
   this.retries(2);
 

test/e2e/getLCP-test.js → test/e2e/onLCP-test.js

@@ -22,7 +22,7 @@ const {stubForwardBack} = require('../utils/stubForwardBack.js');
 const {stubVisibilityChange} = require('../utils/stubVisibilityChange.js');
 
 
-describe('getLCP()', async function() {
+describe('onLCP()', async function() {
   // Retry all tests in this suite up to 2 times.
   this.retries(2);
 

test/e2e/getTTFB-test.js → test/e2e/onTTFB-test.js

@@ -61,7 +61,7 @@ function assertValidEntry(entry) {
   }
 }
 
-describe('getTTFB()', async function() {
+describe('onTTFB()', async function() {
   // Retry all tests in this suite up to 2 times.
   this.retries(2);
 

test/views/cls.njk

@@ -28,9 +28,9 @@
   <p><a id="navigate-away" href="https://example.com">Navigate away</a></p>
 
   <script type="module">
-    import {getCLS} from '{{ modulePath }}';
+    import {onCLS} from '{{ modulePath }}';
 
-    getCLS((cls) => {
+    onCLS((cls) => {
       // Log for easier manual testing.
       console.log(cls);
 

test/views/fcp.njk

@@ -25,9 +25,9 @@
   <p><a id="navigate-away" href="https://example.com">Navigate away</a></p>
 
   <script type="module">
-    import {getFCP} from '{{ modulePath }}';
+    import {onFCP} from '{{ modulePath }}';
 
-    getFCP((fcp) => {
+    onFCP((fcp) => {
       // Log for easier manual testing.
       console.log(fcp);
 

test/views/fid.njk

@@ -24,9 +24,9 @@
   <p><a id="navigate-away" href="https://example.com">Navigate away</a></p>
 
   <script type="module">
-    import {getFID} from '{{ modulePath }}';
+    import {onFID} from '{{ modulePath }}';
 
-    getFID((fid) => {
+    onFID((fid) => {
       // Log for easier manual testing.
       console.log(fid);
 

test/views/inp.njk

@@ -79,9 +79,9 @@
   <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin nec porta orci, ac sagittis augue. Nullam orci tellus, suscipit sed magna id, mattis iaculis ex. Etiam felis lectus, accumsan eu magna lacinia, lobortis tempus lacus. Donec nulla metus, blandit eget ullamcorper in, placerat eu massa. Curabitur vitae elementum orci, ac tincidunt neque. Maecenas accumsan odio sit amet arcu elementum, non vestibulum enim finibus. Phasellus malesuada lacinia suscipit. Cras ac gravida urna. In et mauris non tellus pretium ultrices. Fusce mattis a risus at tincidunt. Donec ac fringilla magna, nec suscipit lectus. Sed risus massa, rutrum ut leo quis, tempor dapibus dui. Proin in mauris non risus maximus tincidunt quis a mauris.</p>
 
   <script type="module">
-    import {getINP} from '{{ modulePath }}';
+    import {onINP} from '{{ modulePath }}';
 
-    getINP((inp) => {
+    onINP((inp) => {
       // Log for easier manual testing.
       console.log(inp);
 

test/views/lcp.njk

@@ -32,9 +32,9 @@
   <footer>Text below the full-height element.</footer>
 
   <script type="module">
-    import {getLCP} from '{{ modulePath }}';
+    import {onLCP} from '{{ modulePath }}';
 
-    getLCP((lcp) => {
+    onLCP((lcp) => {
       // Log for easier manual testing.
       console.log(lcp);
 

test/views/ttfb.njk

@@ -25,14 +25,14 @@
   <p><a id="navigate-away" href="https://example.com">Navigate away</a></p>
 
   <script type="module">
-    import {getTTFB} from '{{ modulePath }}';
+    import {onTTFB} from '{{ modulePath }}';
 
     (async function() {
       {% if awaitLoad %}
         await new Promise((resolve) => addEventListener('load', resolve));
       {% endif %}
 
-      getTTFB((ttfb) => {
+      onTTFB((ttfb) => {
         // Log for easier manual testing.
         console.log(ttfb);