Archive for November, 2010

Gtk+ 3.0 html5 backend

Friday, November 26th, 2010

I just landed the html5 backend for Gtk+ in git in the broadway branch of Gtk+.

It has several issues, as mentioned on the mailing list, but it does let people play with this code.

Gtk3 vs HTML5

Tuesday, November 23rd, 2010

The last few weeks I’ve been working on an interesting new idea, hacking out a prototype.

The code is not really clean enough for public consumption yet, and a bunch of features are missing. However, its now at the stage where it can be demoed and evaluated.

I think the best way to introduce it is via a video: (original theora file)

Basically, its a backend for Gtk+ 3 that renders in a browser.

A more techincal description for the web geeks among us:

Each toplevel window is mapped to a canvas element, and the content in the windows is updated by streaming commands over a multipart/x-mixed-replace XMLHttpRequest that uses gzip Content-Encoding to compress the data. Window data is pushed as region copies (for scrolling) and image diffs. Images are sent as data: uris of uncompressed png data.

Input is gathered via dom events and sent to the server using websockets.

Right now this is Firefox 4 only, but it could be made to work in any browser with websockets.

Now, I want to know, Is this useful?

There are two basic ways to use this, you can either run your own apps on your own server and access it from anywhere (kinda like screen). Or you can put it on a public server that spawns a new instance of the app for every user (gimp on a webpage!).

If you had this technology, what cool stuff would you do with it? What apps would you run, and how would you use them?