Back to Blog
Chromium embedded framework7/3/2023 ![]() ![]() Currently WebView2 team releases updates every four weeks. You need to wait for Microsoft to fix bugs. You can customise the code, fix bugs, submit pull requests, etc. In addition to the other answer I'll add some additional points LicenseĬefSharp is open source, 3-BSD licensed. CefSharp doesn't support commercial codes by default.CefSharp supports only primary AppDomain.WebView2 and other out-of-process libraries are sandboxed as well.ĬefSharp doesn't support sandboxing and, it seems, never will ( #697). The Chromium team explains the sandbox in great detail here. There's no such API in WebView2, only workarounds based on Win API.īy default, all Chromium processes are sandboxed. Look at the SendMouse* and SendKey* methods in IBrowserHost. The browser handles these events as user gestures, and JavaScript can't tell between them and real human input. CefSharp has an API for dispatching "real" mouse and keyboard events to the browser. The bread and butter of automation is simulating user input. It allows the application to run in the console, overlay web content with other controls, render web content in Unit圓D, etc. This mode has two significant drawbacks: it requires a window to function, and the browser always stays on top (aka the airspace issue).ĬefSharp also has offscreen rendering. WebView2 supports only windowed rendering. Another approach is to render web content in memory and draw it on an arbitrary surface. We call this "windowed" or "heavyweight" mode. One is to shake off the bells and whistles from an actual Chromium window and embed it into the application. There are two approaches to the rendering of embedded web content. WebView2 process model.Ī score for WebView2. Not applicable for the offscreen rendering, though.ĬefSharp process model. Occasionally, there are issues with the focus and drag-and-drop because the browser window belongs to another process.It may be slower because of inter-process communication.It doesn't bite off the application's RAM.Not only WebView2 works this way, but also DotNetBrowser and EO.WebBrowser. The out-of-process model is popular among proprietary browsers. If there's a vulnerability in CEF or Chromium, it can also expose the application's memory.If CEF crashes, it takes the application down with it.The in-process model is common to all CEF-based browsers. CefSharp starts Chromium in the application's process, and WebView2 starts it as a separate process. It is, of course, a bald simplification, but it will do.īoth CefSharp and WebView2 follow this process model with one very significant difference. The Chromium process model has the main process and many auxiliary processes. This answer is based on my personal experience and is not an exhaustive comparison. WebView2 has a sandbox CefSharp doesn't.WebView2 runs in a separate process CefSharp runs in the application's process. ![]() No running in the console, as a service, on a server. WebView2 doesn't have an API for simulating user input, it's unsuitable for automation.This issue in WebView2's Github answers your question in part.
0 Comments
Read More
Leave a Reply. |