Web Browser widget demo

[Peter Gunn]

This is just proof-of-concept demo of embedding Chromium in a Fl_Widget using Chromium Embedded Framework (CEF) using offscreen rendering.

CEF: https://bitbucket.org/chromiumembedded/cef/src/master/

Linux Demo code: https://pastebin.com/mty6VDaJ

Basic idea is CEF renders webpage offscreen in BGRA buffer and widget converts to FLTK RGBA during draw(). The rest is mapping FLTK mouse and keyboard events to CEF events.

I have no plans to do anything with it. Just thought I'd share :-)

Thanks

PG

[Peter Gunn]

If you try it and get a crash with error "[0802/184157.621873:ERROR:icu_util.cc(240)] Invalid file descriptor to ICU data received." the following should fix it...

cp cef_binary_*/Resources/icudtl.dat cef_binary_*/Release/

Thanks

PG

[Patrick Madueke]

Thank you very much. I will try it when there is something I want to do with it.

Someone can also tell us the size after compilation.

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[Peter Gunn]

> Someone can also tell us the size after compilation. 

  Executable is 1.5MB as the Chromium part (libcef.so) is linked dynamically.  Unfortunately libcef.so which would need to be bundled with the app is 1.2GB!

[Patrick Madueke]

Thank you. From ~600MB to 1.2GB... 🤔

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[Peter Gunn]

Just noticed that 80+% of that size is debug symbols. Stripping libcef.so reduces it from 1.2GB to 190MB. The stripped binary gzips to <80MB.

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[Patrick Madueke]

Thanks. Better.

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