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[examples] get rid of old examples

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This patch:
- removes old phantom-js examples
- adds an example to load page without images

References #178
This commit is contained in:
Andrey Lushnikov 2017-08-08 00:44:15 -07:00 committed by GitHub
parent 104455c75a
commit 29adc5dc80
10 changed files with 60 additions and 331 deletions
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2
README.md
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@ -23,7 +23,7 @@ To add Puppeteer to your project, run:
yarn add puppeteer yarn add puppeteer
``` ```
> **NOTE** Puppeteer bundles a version of Chromium (~90Mb) which it is guaranteed to work with. However, you're free to point Puppeteer to any Chromium executable ([example](https://github.com/GoogleChrome/puppeteer/blob/master/examples/custom-chromium-revision.js)) > **NOTE** Puppeteer bundles a version of Chromium (~90Mb) which it is guaranteed to work with. However, you're free to point Puppeteer to any Chromium executable ([documentation](https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md#new-browseroptions))
## Getting Started ## Getting Started

34
examples/loadurlwithoutcss.js → examples/block-images.js
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@ -14,25 +14,21 @@
* limitations under the License. * limitations under the License.
*/ */
const Browser = require('../lib/Browser'); (async() => {
if (process.argv.length < 3) { const {Browser} = require('puppeteer');
console.log('Usage: loadurlwithoutcss.js URL'); const browser = new Browser();
return;
}
let address = process.argv[2]; const page = await browser.newPage();
await page.setRequestInterceptor(request => {
let browser = new Browser({headless: false}); if (/\.(png|jpg|jpeg$)/.test(request.url))
browser.newPage().then(async page => { request.abort();
page.setRequestInterceptor(request => { else
if (request.url.endsWith('.css')) request.continue();
request.abort();
else
request.continue();
});
let success = await page.navigate(address);
if (!success)
console.log('Unable to load the address!');
browser.close();
}); });
await page.navigate('https://bbc.com');
await page.screenshot({path: 'news.png', fullPage: true});
browser.close();
})();

71
examples/colorwheel.js
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@ -1,71 +0,0 @@
/**
* 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.
*/
const Browser = require('../lib/Browser');
let browser = new Browser();
browser.newPage().then(async page => {
await page.setViewport({width: 400, height: 400});
await page.setContent('<html><body><canvas id="surface"></canvas></body></html>');
await page.evaluate(drawColorWheel);
await page.screenshot({path: 'colorwheel.png'});
browser.close();
});
function drawColorWheel() {
let el = document.getElementById('surface'),
context = el.getContext('2d'),
width = window.innerWidth,
height = window.innerHeight,
cx = width / 2,
cy = height / 2,
radius = width / 2.3,
imageData,
pixels,
hue, sat,
i = 0, x, y, rx, ry, d,
f, g, u, v, w;
el.width = width;
el.height = height;
imageData = context.createImageData(width, height);
pixels = imageData.data;
for (y = 0; y < height; y = y + 1) {
for (x = 0; x < width; x = x + 1, i = i + 4) {
rx = x - cx;
ry = y - cy;
d = rx * rx + ry * ry;
if (d < radius * radius) {
hue = 6 * (Math.atan2(ry, rx) + Math.PI) / (2 * Math.PI);
sat = Math.sqrt(d) / radius;
g = Math.floor(hue);
f = hue - g;
u = 255 * (1 - sat);
v = 255 * (1 - sat * f);
w = 255 * (1 - sat * (1 - f));
pixels[i] = [255, v, u, u, w, 255, 255][g];
pixels[i + 1] = [w, 255, 255, v, u, u, w][g];
pixels[i + 2] = [u, u, w, 255, 255, v, u][g];
pixels[i + 3] = 255;
}
}
}
context.putImageData(imageData, 0, 0);
document.body.style.backgroundColor = 'white';
document.body.style.margin = '0px';
}

36
examples/custom-chromium-revision.js
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@ -1,36 +0,0 @@
/**
* Copyright 2017 Google Inc. 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.
*/
const Browser = require('../lib/Browser');
const Downloader = require('../utils/ChromiumDownloader');
let revision = '483012';
console.log('Downloading custom chromium revision - ' + revision);
Downloader.downloadRevision(Downloader.currentPlatform(), revision).then(async() => {
console.log('Done.');
let executablePath = Downloader.revisionInfo(Downloader.currentPlatform(), revision).executablePath;
let browser1 = new Browser({ executablePath });
let browser2 = new Browser();
let [version1, version2] = await Promise.all([
browser1.version(),
browser2.version()
]);
console.log('browser1: ' + version1);
console.log('browser2: ' + version2);
browser1.close();
browser2.close();
});

43
examples/detect-sniff.js Normal file
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@ -0,0 +1,43 @@
/**
* 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.
*/
(async() => {
const {Browser} = require('puppeteer');
const browser = new Browser();
const page = await browser.newPage();
await page.evaluateOnNewDocument(sniffDetector);
await page.navigate('https://www.google.com', {waitUntil: 'networkidle'});
console.log('Sniffed: ' + (await page.evaluate(() => !!navigator.sniffed)));
browser.close();
})();
function sniffDetector() {
let userAgent = window.navigator.userAgent;
let platform = window.navigator.platform;
window.navigator.__defineGetter__('userAgent', function() {
window.navigator.sniffed = true;
return userAgent;
});
window.navigator.__defineGetter__('platform', function() {
window.navigator.sniffed = true;
return platform;
});
}

67
examples/detectsniff.js
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@ -1,67 +0,0 @@
/**
* 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.
*/
const Browser = require('../lib/Browser');
if (process.argv.length < 3) {
console.log('Usage: detectsniff.js <some URL>');
return;
}
let address = process.argv[2];
console.log('Checking ' + address + '...');
let browser = new Browser();
browser.newPage().then(async page => {
await page.evaluateOnNewDocument(function() {
(function() {
let userAgent = window.navigator.userAgent,
platform = window.navigator.platform;
window.navigator = {
appCodeName: 'Mozilla',
appName: 'Netscape',
cookieEnabled: false,
sniffed: false
};
window.navigator.__defineGetter__('userAgent', function() {
window.navigator.sniffed = true;
return userAgent;
});
window.navigator.__defineGetter__('platform', function() {
window.navigator.sniffed = true;
return platform;
});
})();
});
let success = await page.navigate(address);
if (!success) {
console.log('FAIL to load the address');
browser.close();
return;
}
setTimeout(async function() {
let sniffed = await page.evaluate(() => navigator.sniffed);
if (sniffed)
console.log('The page tried to sniff the user agent.');
else
console.log('The page did not try to sniff the user agent.');
browser.close();
}, 1500);
});

56
examples/features.js
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@ -1,56 +0,0 @@
/**
* 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.
*/
const path = require('path');
const Browser = require('../lib/Browser');
let browser = new Browser();
browser.newPage().then(async page => {
let modernizrPath = path.join(__dirname, '../third_party/phantomjs/examples/modernizr.js');
await page.injectFile(modernizrPath);
page.on('console', console.log);
await page.evaluate(detectFeatures);
browser.close();
});
function detectFeatures() {
let supported = [], unsupported = [];
console.log('Detected features (using Modernizr ' + Modernizr._version + '):');
for (let 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);
});
}

40
examples/openurlwithproxy.js
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@ -1,40 +0,0 @@
/**
* 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.
*/
const Browser = require('../lib/Browser');
if (process.argv.length < 5) {
console.log('Usage: openurlwithproxy.js <proxyHost> <proxyPort> <URL>');
return;
}
let host = process.argv[2];
let port = process.argv[3];
let address = process.argv[4];
let browser = new Browser({
args: [ `--proxy-server=${host}:${port}`]
});
browser.newPage().then(async page => {
let success = await page.navigate(address);
if (success) {
console.log('Page title is ' + (await page.title()));
} else {
console.log('FAIL to load the address "' +
address + '" using proxy "' + host + ':' + port + '"');
}
browser.close();
});

40
examples/pagecallback.js
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@ -1,40 +0,0 @@
/**
* 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.
*/
const Browser = require('../lib/Browser');
let browser = new Browser();
browser.newPage().then(async page => {
page.on('console', console.log);
await page.setInPageCallback('callPhantom', msg => {
console.log("Page is saying: '" + msg + "'");
return 'Hello, page';
});
await page.evaluate(async function() {
// Return-value of the "onCallback" handler arrive here
let callbackResponse = await window.callPhantom('Hello, driver');
console.log("Driver is saying: '" + callbackResponse + "'");
});
browser.close();
});

2
examples/screenshot.js
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@ -14,7 +14,7 @@
* limitations under the License. * limitations under the License.
*/ */
const Browser = require('../lib/Browser'); const {Browser} = require('puppeteer');
const browser = new Browser(); const browser = new Browser();
browser.newPage().then(async page => { browser.newPage().then(async page => {