Remove Alloy Bootstrap (M128)

[amaitland]

CEF is going to remove the Alloy Bootstrap

• Upstream issue alloy: Delete Alloy bootstrap (M128) chromiumembedded/cef#3685
• Announcement

Starting in M125 it will be possible to migrate over to the Chrome Bootstrap.

[amaitland]

CefSharp will likely switch to using the Chrome Bootstrap by default in M126 to ensure any underlying issues are identified before the alloy bootstrap is removed.

[amaitland]

CefSharp will likely switch to using the Chrome Bootstrap by default in M126 to ensure any underlying issues are identified before the alloy bootstrap is removed.

Confirming this change (#4835)

[amaitland]

Important

If you discover an issue with the Chrome Bootstrap then you need to raise the issue on the CEF ISSUE TRACKER

https://github.com/chromiumembedded/cef/issues

Please post a link to the upstream issue below so it can be added to the list, don't create an issue in this repository.

[amaitland]

The Alloy bootstrap will be removed upstream in M128

[amaitland]

The disable-pdf-extension flag is not supported with Chrome bootstrap.

[amaitland]

• Crashes when opening a downloaded pdf chromiumembedded/cef#3750
• chrome: Support custom locales and resources paths chromiumembedded/cef#3749
• Not all file handles are closed after Cef.Shutdown chromiumembedded/cef#3726
• winforms: setting remote-allow-origins does not show remote origins on set port with Chrome bootstrap chromiumembedded/cef#3740
• cefsharp 126.2.7 disable-pdf-extension Invalid cefsharp 125.0.210 disable-pdf-extension normal chromiumembedded/cef#3739
• v126.x (Chrome bootstrap) unable to load cookies from prior version (Alloy bootstrap) #4847
• Error while fulfilling of JS: Request BrowserId : 1 not found it's likely the browser is already closed #4621
• https://www.magpcss.org/ceforum/viewtopic.php?f=6&t=19942#p55974
• [Chrome Runtime] Impossible to use window.open during page load chromiumembedded/cef#3785
• Call DownloadHandler::CanDownload when downloading a PDF file from the PDF viewer chromiumembedded/cef#3783
• Crash due to index out of bounds at CefFileDialogManager::MaybeRunDelegate chromiumembedded/cef#3779
• cefclient aborted popup keeps application from terminating chromiumembedded/cef#3776
• "Print" and "Print to PDF" crash in debug build mode， failed in release build mode. chromiumembedded/cef#3772
• Print Preview still does not load for some websites chromiumembedded/cef#3768
• Touch support broken (crash) in OSR mode chromiumembedded/cef#3764
• Tooltip not correctly shown when DPI > 100% chromiumembedded/cef#3744
• Not all file handles are closed after Cef.Shutdown chromiumembedded/cef#3726
• DevTools does not open as child popup window. #4936

[amaitland]

The disable-pdf-extension flag is not supported with Chrome bootstrap.

Workaround chromiumembedded/cef#3739 (comment)

[mattwildgoose]

Submitting a form with newly entered address details causes the hosting app to crash (if CefSettings.Locale is set)

[mol]

@amaitland chromiumembedded/cef#3860 means WPF has this issue, since as I understand it, WPF is still using Alloy.

I've searched everywhere, but I'm unclear what the eventual complete removal of Alloy in CEF is going to mean for CefSharp WPF? Will the Chrome Bootstrap support WPF?

[amaitland]

My understanding there's two parts, bootstrap and style. The alloy bootstrap has already been removed. The chrome bootstrap is the only option now.

The chrome bootstrap supports alloy styling. OSR which the WPF implementation uses is only supported with alloy styling.

I'm not aware of any plans to remove alloy styled browsers. If you're seen something to the contrary then please share a link.

There are a number of issues that you might run into with the OSR implementation as it stands, the key ones being

chromiumembedded/cef#3826
chromiumembedded/cef#3822
chromiumembedded/cef#3764

There is the hwndhost implementation which can be configured to use chrome styling. (Airspace issues apply) https://github.com/cefsharp/CefSharp.Wpf.HwndHost

I'm not sure if this is viable for you as an alternative, just pointing it out just in case.

I'm in the process of moving the source into the main repo #4981

[mol]

My understanding there's two parts, bootstrap and style. The alloy bootstrap has already been removed. The chrome bootstrap is the only option now.

Ah, I see. I wasn't fully aware of this distinction - good to know, thanks.

Thanks for the other links - I'll play around with it some more and see what I can find.