Rendering application bar in RTL with Views framework

[dcg]

Hello, I am having an issue with the way my application's CEF window renders when Windows is set to an right-to-left (RTL) display language, such as Arabic. I would expect the entire application bar to be reversed (close/maximize/minimize on the left side), but it remains left-to-right.

I am using the Views framework to create the top-level window. CefSettings.locale and CefSettings.accept_language_list are both set to "ar" prior to calling CefInitialize. The main window is being created using CefBrowserView::CreateBrowserView and CefWindow::CreateTopLevelWindow.

Is there some additional setting I am missing to make this work correctly?

[magreenblatt]

How do other applications behave on Windows with RTL configured? Do they show the window buttons in the top-left corner?

[magreenblatt]

Note that a difference in behavior is expected between RTL Windows installation and RTL language selection (e.g. the window buttons will likely only move with an RTL Windows installation).

[dcg]

Thanks for the response, Marshall. Other applications render the window buttons on the left side, as I'd expect for an RTL language. This is originally a US English Windows installation, and I've changed the Windows display language to "Arabic (Saudi Arabia)".

I attached a picture that shows the behavior across four windows: Chromium, Notepad, and two examples of the latest download of the CEF sample app (with and without using the Views framework).

[magreenblatt]

Can you also test "cefclient --enable-chrome-runtime"? Please add a new bug at https://github.com/chromiumembedded/cef/issues. Thanks.

[dcg]

Thanks, I created https://github.com/chromiumembedded/cef/issues/3583

Same issue seen with --enable-chrome-runtime (additional screenshot has been added to the bug)

[magreenblatt]

Thanks

[dcg]

Another update: I came across a flag in the Chromium codebase that allows forcing text direction -- https://chromium.googlesource.com/chrom ... rtl.cc#177

I tried this out with the CEF sample app. The application bar always remains in LTR, but interestingly the menu bar and the various controls (forward/back, address bar, etc) do respect the forced direction. See attached image for details.

cef_rtl_3.PNG (46.37 KiB) Viewed 9700 times