Vi Adapter: Passes additional param in the bid request (prebid#4134)

* Add focus check

(cherry picked from commit 9d6d6df)

* Pass focus as numeric value

(cherry picked from commit 9fae56a)

* Add unit test

(cherry picked from commit 946710f)

modules/viBidAdapter.js

@@ -302,6 +302,10 @@ export function mergeArrays(hashFn, ...args) {
  return merged;
 }
 
+export function documentFocus(doc) {
+ return typeof doc.hasFocus === 'function' ? +doc.hasFocus() : undefined;
+}
+
 const spec = {
  code: 'vi',
  supportedMediaTypes: [mediaTypes.VIDEO, mediaTypes.BANNER],
@@ -372,7 +376,8 @@ const spec = {
  ...params
  };
  }
- )
+ ),
+ focus: documentFocus(document)
  },
  options: {
  contentType: 'application/json',

test/spec/modules/viBidAdapter_spec.js

@@ -23,7 +23,8 @@ import {
  area,
  get,
  getViewabilityDescription,
- mergeArrays
+ mergeArrays,
+ documentFocus
 } from 'modules/viBidAdapter';
 
 describe('ratioToPercentageCeil', () => {
@@ -892,3 +893,19 @@ describe('mergeSizes', () => {
  ).to.deep.equal([[1, 2], [2, 4], [400, 500], [500, 600]]);
  });
 });
+
+describe('documentFocus', () => {
+ it('calls hasFocus function if it present, converting boolean to an int 0/1 value, returns undefined otherwise', () => {
+ expect(
+ documentFocus({
+ hasFocus: () => true
+ })
+ ).to.equal(1);
+ expect(
+ documentFocus({
+ hasFocus: () => false
+ })
+ ).to.equal(0);
+ expect(documentFocus({})).to.be.undefined;
+ });
+});