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Re-implement phantom's pagecallback.js example with puppeteer

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This patch adds examples/pagecallback.js file which illustrates
phantom's pagecallback example re-implemented with puppeteer API.
This commit is contained in:
Andrey Lushnikov 2017-05-13 11:17:45 -07:00
parent 15b36b1cf0
commit 5ea703f2f4
1 changed files with 32 additions and 0 deletions
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examples/pagecallback.js Normal file
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/**
* Copyright 2017 Google Inc., PhantomJS Authors All rights reserved.
*
* 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
*
* http://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.
*/
var Browser = require('../lib/Browser');
var browser = new Browser();
browser.newPage().then(async page => {
page.on('ConsoleMessage', console.log);
await page.setInPageCallback('callPhantom', msg => {
console.log("Received by the 'phantom' main context: "+msg);
return "Hello there, I'm coming to you from the 'phantom' context instead";
});
await page.evaluate(function() {
// Return-value of the "onCallback" handler arrive here
var callbackResponse = window.callPhantom("Hello, I'm coming to you from the 'page' context");
console.log("Received by the 'page' context: "+callbackResponse);
});
browser.close();
});