puppeteer/examples/features.js

/**
 * 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 path = require('path');
var Browser = require('../lib/Browser');
var browser = new Browser();

browser.newPage().then(async page => {
    var modernizrPath = path.join('..', 'third_party', 'phantomjs', 'examples', 'modernizr.js');
    await page.injectFile(modernizrPath);
    page.on('Page.Events.ConsoleMessage', console.log);
    await page.evaluate(detectFeatures);
    browser.close();
});

function detectFeatures() {
    var supported = [], unsupported = [];
    console.log('Detected features (using Modernizr ' + Modernizr._version + '):');
    for (var feature in Modernizr) {
        if (Modernizr.hasOwnProperty(feature)) {
            if (feature[0] !== '_' && typeof Modernizr[feature] !== 'function' &&
                feature !== 'input' && feature !== 'inputtypes') {
                if (Modernizr[feature]) {
                    supported.push(feature);
                } else {
                    unsupported.push(feature);
                }
            }
        }
    }

    console.log('');
    console.log('Supported:');
    supported.forEach(function (e) {
        console.log('  ' + e);
    });

    console.log('');
    console.log('Not supported:');
    unsupported.forEach(function (e) {
        console.log('  ' + e);
    });
}