Home > OpenStep, GNUstep > First Alpha Release of WebCore for GNUstep First Alpha Release of WebCore for GNUstep Submitted by Andrew Munkres 2004-02-05 OpenStep, GNUstep 20 Comments Stefan has released an alpha version of his GNUstep port of WebCore, the KHTML-based renderer used by Apple’s Safari web browser. The code includes a simple browser program. About The Author Eugenia Loli Ex-programmer, ex-editor in chief at OSNews.com, now a visual artist/filmmaker. Follow me on Twitter @EugeniaLoli 20 Comments 2004-02-06 3:53 am Since WebCore is written in C++, and Gnustep does not yet have Objective C++, did he have to create a C wrapper around it to make it work with Objective C? 2004-02-06 4:51 am I believe that actually Apple had already done that little bit of work. From what I remember when Safari was first announced as using KHTML, I read that Apple had created a wrapper around the native QT C++ functions of KHTML, and exported them as Cocoa Objective C functions. 2004-02-06 6:02 am first, yay! I’m glad to see GNUstep is going to have at least a few applications. secondly, i wonder what they’ll call the browser…GNUfari? heh. 2004-02-06 6:43 am http://www.cenon.info It has a very good DTP module (vector graphic stuff). Its manual is very nice and more descriptive than screen shots. 2004-02-06 7:15 am Apple has written the Objective-C++ KWQ Library to interact with the C++ written KHTML. WebCore itself sits on top of KWQ prividing a standard Objective-C programming interface. http://developer.apple.com/darwin/projects/webcore/ —— WebCore is a framework for Mac OS X that takes the cross-platform KHTML library (part of the KDE project) and combines it with an adapter library specific to WebCore called KWQ that makes it work with Mac OS X technologies. KHTML is written in C++ and KWQ is written in Objective C++, but WebCore presents an Objective C programming interface. —— 2004-02-06 8:04 am however, KWQ is written in objective c++ and there is no objective c++ compiler for linux. gcc does NOT include objective c++ support. apple patches gcc themselves to support this for macos and their version of gcc refuses to compile under anything other than darwin last i checked (i think due to changes they made for mach-o?) the FSF didn’t include support for this language because it was a hack that increased maintenance effort needlessly. as a result, much work has been done to make objc++ less of a bother, the first step of which is included in gcc 3.4 (not yet to be released as a stable compiler). dont expect the FSF version of gcc to include objc++ until after 3.4 and possibly not even in 3.5… (tho there is a cvs branch for bringing apple’s objc enhancements to gcc proper) so, in summary, this port is done entirely without the aid of objc++ glue between objc and c++. so it HAD to have been done entirely with c wrappers. painfull. 2004-02-06 8:55 am http://mac.wms-network.de/gnustep/WebCore/blog/osnews.jpg 😉 2004-02-06 9:18 am examining objc i wonder myself wheres the difference to c++ ? objc looks very confusing to me i must admit. 2004-02-06 9:19 am doesnt apple offer c bindings, as well as c++ bindings? last i checked xcode i have to say yes. 2004-02-06 10:41 am If you know C, then Objective-C is much simpler than C++. It just looks a bit odd because of the method call/message passing syntax, which is borrowed from SmallTalk. Of course, to delimit these, they’re wrapped up in brackets, which C uses sparsely and in no conflicting way. I personally find Objective-C quite expressive, particularly for complex methods. The use of factory methods vs. overloaded constructors makes code quite a bit more understandable. 2004-02-06 12:14 pm It’s nice to see another project adopting khtml. Good luck on this to the GNUStep guys. 2004-02-06 12:36 pm GNUStep’s native language is Objective-C. Mozilla is written in C++ and has no Objective-C wrappers. KHTML has Objective-C wrappers available (i.e. WebCore). GNUStep and Cocoa (the OSX API) are both based on the OPENSTEP API (or is it the OpenStep API? I can never remember); indeed, many programs written for GNUStep should run fine on Cocoa (though they’ll almost certainly want changes to the UI). 2004-02-06 1:20 pm Anyone have some news about yT progress on that port? It was announced here sometime ago <http://www.osnews.com/story.php?news_id=4057> and we never heard about it again… Thanx, François 2004-02-06 1:36 pm What does Mozilla have to do with this? 2004-02-06 1:47 pm One presumes that because Mozilla is a webbrowser, it has something to do with webbrowsers. It was a ligitimate question. 2004-02-06 2:47 pm Remember why Apple chose KHTML? Add to that the fact that it’s proven good combo. 2004-02-06 2:51 pm first, yay! I’m glad to see GNUstep is going to have at least a few applications. secondly, i wonder what they’ll call the browser…GNUfari? heh. Hem, there is already more than “a few” applications : http://wiki.gnustep.org/index.php/All%20GNUstep%20Applicati… … in fact, I’m basically using a gnustep-only desktop, the only two apps I use regularly beside are a jabber client and mozilla. I guess that I won’t have to use mozilla in the coming months 😉 Big thanks to stephan, because it sure was a painfull thing to rewrap KHTML in C function for the glue ! Hopefully next gcc versions will have ObjC++ which will help us for others ObjC++ apps or C++ libs, but anyway, stephan did a wonderful job. 2004-02-06 3:01 pm Isn’t that KHTML itself already has Objective-C binding somewhere? http://dot.kde.org/1041971213/1041983392/1042003371/ 2004-02-06 3:23 pm Because you know, there is a whole set of nicely done C wrappers for khtml at KDE´s kdebindings package 😉 Hell, there´s even Obj-C wrappers already. 2004-02-06 5:35 pm Ha ha, that’s funny. Actually, Gnustep seems to have picked up a lot of steam since OSX came out. And it’s always been an active community. I’d probably prefer it over Knome if it was a bit more mature.