is there any FLTK based HTML4 viewer?

[Basile Starynkevitch]

Hello,

for the RefPerSys project (symbolic artificial intelligence project, GPLv3+) we need to browse some subset of HTML4.

Is there any FLTK based widget (open source, GPLv3+ compatible) doing so?

Regards from near Paris in France

---

Basile Starynkevitch <bas...@starynkevitch.net>

[lifeatt...@gmail.com]

>we need to browse some subset of HTML4.

Parse, or display?

The FLTK Fl_Help_View widget supports displaying a subset of HTML2.

HTML only, or CSS and javascript as well?

C++ parsers that handle HTML5:

https://github.com/htacg/tidy-html5

https://github.com/lexbor/lexbor

Maybe you could use a library like  https://github.com/mikke89/RmlUi (using FLTK as the renderer).

Frankly, displaying HTML is a fairly "hard" problem. You might start with Fl_Help_View and extend it, or massage HTML5 down to a level which Fl_Help_View can handle.

[Mo_Al_]

I have a proof of concept using the webview library here:

https://github.com/MoAlyousef/wv

Works on Windows, on macos it shows the webview and navigates, but lacks event handling. On linux, works on non-gnome desktops, on gnome it requires repeated querying and reparenting.

[lifeatt...@gmail.com]

>I have a proof of concept using the webview library here:

>https://github.com/MoAlyousef/wv

Great! I'll have to check it out!

[Sanel Zukan]

There is a webkit port [1] if you want modern html/css/js support.

[1] https://github.com/clbr/webkitfltk

Best,
Sanel

Basile Starynkevitch <bas...@starynkevitch.net> writes:
> Hello,
> for the RefPerSys <http://refpersys.org/> project (symbolic artificial

> intelligence project, GPLv3+) we need to browse some subset of HTML4.
> Is there any FLTK based widget (open source, GPLv3+ compatible) doing so?
>
> Regards from near Paris in France
> ---

> Basile Starynkevitch <http://starynkevitch.net/Basile/>
> <bas...@starynkevitch.net>
>
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[Mo_Al_]

I fixed the macos event handling issue, and the gnome issue appears to also be fixed