feat(geo): implement geo override in ff

Author: pavelfeldman

package.json

@@ -9,7 +9,7 @@
   "main": "index.js",
   "playwright": {
     "chromium_revision": "751710",
-    "firefox_revision": "1043",
+    "firefox_revision": "1044",
     "webkit_revision": "1180"
   },
   "scripts": {

src/chromium/crBrowser.ts

@@ -268,8 +268,6 @@ export class CRBrowserContext extends BrowserContextBase {
   async _initialize() {
     if (this._options.permissions)
       await this.grantPermissions(this._options.permissions);
-    if (this._options.geolocation)
-      await this.setGeolocation(this._options.geolocation);
     if (this._options.offline)
       await this.setOffline(this._options.offline);
     if (this._options.httpCredentials)

src/firefox/ffBrowser.ts

@@ -16,7 +16,7 @@
  */
 
 import { Browser, createPageInNewContext } from '../browser';
-import { assertBrowserContextIsNotOwned, BrowserContext, BrowserContextBase, BrowserContextOptions, validateBrowserContextOptions } from '../browserContext';
+import { assertBrowserContextIsNotOwned, BrowserContext, BrowserContextBase, BrowserContextOptions, validateBrowserContextOptions, verifyGeolocation } from '../browserContext';
 import { Events } from '../events';
 import { assert, helper, RegisteredListener } from '../helper';
 import * as network from '../network';
@@ -170,8 +170,6 @@ export class FFBrowserContext extends BrowserContextBase {
   async _initialize() {
     if (this._options.permissions)
       await this.grantPermissions(this._options.permissions);
-    if (this._options.geolocation)
-      await this.setGeolocation(this._options.geolocation);
     if (this._options.extraHTTPHeaders)
       await this.setExtraHTTPHeaders(this._options.extraHTTPHeaders);
     if (this._options.offline)
@@ -250,7 +248,11 @@ export class FFBrowserContext extends BrowserContextBase {
   }
 
   async setGeolocation(geolocation: types.Geolocation | null): Promise<void> {
-    throw new Error('Geolocation emulation is not supported in Firefox');
+    if (geolocation)
+      geolocation = verifyGeolocation(geolocation);
+    this._options.geolocation = geolocation || undefined;
+    for (const page of this.pages())
+      await (page._delegate as FFPage)._setGeolocation(geolocation);
   }
 
   async setExtraHTTPHeaders(headers: network.Headers): Promise<void> {

src/firefox/ffPage.ts

@@ -86,13 +86,15 @@ export class FFPage implements PageDelegate {
   }
 
   async _initialize() {
+    const geolocation = this._browserContext._options.geolocation;
     try {
       await Promise.all([
         // TODO: we should get rid of this call to resolve before any early events arrive, e.g. dialogs.
         this._session.send('Page.addScriptToEvaluateOnNewDocument', {
           script: '',
           worldName: UTILITY_WORLD_NAME,
         }),
+        geolocation ? this._setGeolocation(geolocation) : Promise.resolve(),
         new Promise(f => this._session.once('Page.ready', f)),
       ]);
       this._pageCallback(this._page);
@@ -481,6 +483,10 @@ export class FFPage implements PageDelegate {
       throw new Error('Frame has been detached.');
     return result.handle;
   }
+
+  async _setGeolocation(geolocation: types.Geolocation | null) {
+    await this._session.send('Page.setGeolocationOverride', geolocation || {});
+  }
 }
 
 function toRemoteObject(handle: dom.ElementHandle): Protocol.Runtime.RemoteObject {

test/geolocation.spec.js

@@ -23,7 +23,7 @@ module.exports.describe = function ({ testRunner, expect, FFOX, WEBKIT }) {
   const {it, fit, xit, dit} = testRunner;
   const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
 
-  describe.fail(FFOX)('Overrides.setGeolocation', function() {
+  describe('Overrides.setGeolocation', function() {
     it('should work', async({page, server, context}) => {
       await context.grantPermissions(['geolocation']);
       await page.goto(server.EMPTY_PAGE);
@@ -87,5 +87,30 @@ module.exports.describe = function ({ testRunner, expect, FFOX, WEBKIT }) {
       });
       await context.close();
     });
+    it('watchPosition should be notified', async({page, server, context}) => {
+      await context.grantPermissions(['geolocation']);
+      await page.goto(server.EMPTY_PAGE);
+      const messages = [];
+      page.on('console', message => messages.push(message.text()));
+
+      await context.setGeolocation({latitude: 0, longitude: 0});
+      await page.evaluate(() => {
+        navigator.geolocation.watchPosition(pos => {
+          const coords = pos.coords;
+          console.log(`lat=${coords.latitude} lng=${coords.longitude}`);
+        }, err => {});
+      });
+      await context.setGeolocation({latitude: 0, longitude: 10});
+      await page.waitForEvent('console', message => message.text().includes('lat=0 lng=10'));
+      await context.setGeolocation({latitude: 20, longitude: 30});
+      await page.waitForEvent('console', message => message.text().includes('lat=20 lng=30'));
+      await context.setGeolocation({latitude: 40, longitude: 50});
+      await page.waitForEvent('console', message => message.text().includes('lat=40 lng=50'));
+
+      const allMessages = messages.join('|');
+      expect(allMessages).toContain('lat=0 lng=10');
+      expect(allMessages).toContain('lat=20 lng=30');
+      expect(allMessages).toContain('lat=40 lng=50');
+    });
   });
 };