puppeteer-1's Introduction

CefSharp Puppeteer

CefSharp Puppeteer is a fork of puppeteer-sharp by Darío Kondratiuk that has been adapted specifically for use with CefSharp. Direct communication with the ChromiumWebBrowser instance rather than opening a web socket. 1:1 mapping of Page and ChromiumWebBrowser CEF only supports a subset of features, features will be added/removed as the project matures

Prerequisites

.Net 4.7.2 or .Net Core 3.1 or greater
CefSharp 95.7.141 or greater

Questions and Support

If you have an issue or a question:

Ask a question on Discussions.

Contributing Guide

See this document for information on how to contribute.

Usage

Take screenshots

You can also change the view port before generating the screenshot when using WinForms

await DevToolsContext.SetViewportAsync(new ViewPortOptions
{
    Width = 500,
    Height = 500
});

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Generate PDF files

Currently not supported via CefSharp Puppeteer, use ChromiumWebBrowser.PrintToPdfAsync instead.

Inject HTML

await using var page = await chromiumWebBrowser.GetDevToolsContextAsync();
await page.SetContentAsync("<div>My Receipt</div>");
var result = await page.GetContentAsync();

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Evaluate Javascript

await using var page = await chromiumWebBrowser.GetDevToolsContextAsync();
var seven = await page.EvaluateExpressionAsync<int>("4 + 3");
var someObject = await page.EvaluateFunctionAsync<dynamic>("(value) => ({a: value})", 5);
Console.WriteLine(someObject.a);