Category Archives: GNOME

Frogr 1.2 released

Published / by mario

Of course, just a few hours after releasing frogr 1.1, I’ve noticed that there was actually no good reason to depend on gettext 0.19.8 for the purposes of removing the intltool dependency only, since 0.19.7 would be enough.

So, as raising that requirement up to 0.19.8 was causing trouble to package frogr for some distros still in 0.19.7 (e.g. Ubuntu 16.04 LTS), I’ve decided to do a quick new release and frogr 1.2 is now out with that only change.

One direct consequence is that you can now install the packages for Ubuntu from my PPA if you have Ubuntu Xenial 16.04 LTS or newer, instead of having to wait for Ubuntu Yakkety Yak (yet to be released). Other than that 1.2 is exactly the same than 1.1, so you probably don’t want to package it for your distro if you already did it for 1.1 without trouble. Sorry for the noise.


Frogr 1.1 released

Published / by mario / 2 Comments on Frogr 1.1 released

After almost one year, I’ve finally released another small iteration of frogr with a few updates and improvements.

Screenshot of frogr 1.1

Not many things, to be honest, bust just a few as I said:

  • Added support for flatpak: it’s now possible to authenticate frogr from inside the sandbox, as well as open pictures/videos in the appropriate viewer, thanks to the OpenURI portal.
  • Updated translations: as it was noted in the past when I released 1.0, several translations were left out incomplete back then. Hopefully the new version will be much better in that regard.
  • Dropped the build dependency on intltool (requires gettext >= 0.19.8).
  • A few bugfixes too and other maintenance tasks, as usual.

Besides, another significant difference compared to previous releases is related to the way I’m distributing it: in the past, if you used Ubuntu, you could configure my PPA and install it from there even in fairly old versions of the distro. However, this time that’s only possible if you have Ubuntu 16.10 “Yakkety Yak”, as that’s the one that ships gettext >= 0.19.8, which is required now that I removed all trace of intltool (more info in this post).

However, this is also the first time I’m using flatpak to distribute frogr so, regardless of which distribution you have, you can now install and run it as long as you have the org.gnome.Platform/x86_64/3.22 stable runtime installed locally. Not too bad! :-). See more detailed instructions in its web site.

That said, it’s interesting that you also have the portal frontend service and a backend implementation, so that you can authorize your flickr account using the browser outside the sandbox, via the OpenURI portal. If you don’t have that at hand, you can still used the sandboxed version of frogr, but you’d need to copy your configuration files from a non-sandboxed frogr (under ~/.config/frogr) first, right into ~/.var/app/org.gnome.Frogr/config, and then it should be usable again (opening files in external viewers would not work yet, though!).

So this is all, hope it works well and it’s helpful to you. I’ve just finished uploading a few hundreds of pictures a couple of days ago and it seemed to work fine, but you never know… devil is in the detail!


Chromium Browser on xdg-app

Published / by mario / 7 Comments on Chromium Browser on xdg-app

Last week I had the chance to attend for 3 days the GNOME Software Hackfest, organized by Richard Hughes and hosted at the brand new Red Hat’s London office.

And besides meeting new people and some old friends (which I admit to be one of my favourite aspects about attending these kind of events), and discovering what it’s now my new favourite place for fast-food near London bridge, I happened to learn quite a few new things while working on my particular personal quest: getting Chromium browser to run as an xdg-app.

While this might not seem to be an immediate need for Endless right now (we currently ship a Chromium-based browser as part of our OSTree based system), this was definitely something worth exploring as we are now implementing the next version of our App Center (which will be based on GNOME Software and xdg-app). Chromium updates very frequently with fixes and new features, and so being able to update it separately and more quickly than the OS is very valuable.

Endless OS App Center
Screenshot of Endless OS’s current App Center

So, while Joaquim and Rob were working on the GNOME Software related bits and discussing aspects related to Continuous Integration with the rest of the crowd, I spent some time learning about xdg-app and trying to get Chromium to build that way which, unsurprisingly, was not an easy task.

Fortunately, the base documentation about xdg-app together with Alex Larsson’s blog post series about this topic (which I wholeheartedly recommend reading) and some experimentation from my side was enough to get started with the whole thing, and I was quickly on my way to fixing build issues, adding missing deps and the like.

Note that my goal at this time was not to get a fully featured Chromium browser running, but to get something running based on the version that we use use in Endless (Chromium 48.0.2564.82), with a couple of things disabled for now (e.g. chromium’s own sandbox, udev integration…) and putting, of course, some holes in the xdg-app configuration so that Chromium can access the system’s parts that are needed for it to function (e.g. network, X11, shared memory, pulseaudio…).

Of course, the long term goal is to close as many of those holes as possible using Portals instead, as well as not giving up on Chromium’s own sandbox right away (some work will be needed here, since `setuid` binaries are a no-go in xdg-app’s world), but for the time being I’m pretty satisfied (and kind of surprised, even) that I managed to get the whole beast built and running after 4 days of work since I started :-).

But, as Alberto usually says… “screencast or it didn’t happen!”, so I recorded a video yesterday to properly share my excitement with the world. Here you have it:

[VIDEO: Chromium Browser running as an xdg-app]

As mentioned above, this is work-in-progress stuff, so please hold your horses and manage your expectations wisely. It’s not quite there yet in terms of what I’d like to see, but definitely a step forward in the right direction, and something I hope will be useful not only for us, but for the entire Linux community as a whole. Should you were curious about the current status of the whole thing, feel free to check the relevant files at its git repository here.

Last, I would like to finish this blog post saying thanks specially to Richard Hughes for organizing this event, as well as the GNOME Foundation and Red Hat for their support in the development of GNOME Software and xdg-app. Finally, I’d also like to thank my employer Endless for supporting me to attend this hackfest. It’s been a terrific week indeed… thank you all!

Credit to Georges Stavracas

Credit to Georges Stavracas

Frogr 1.0 released

Published / by mario / 7 Comments on Frogr 1.0 released

I’ve just released frogr 1.0. I can’t believe it took me 6 years to move from the 0.x series to the 1.0 release, but here it is finally. For good or bad.

Screenshot of frogr 1.0This release is again a small increment on top of the previous one that fixes a few bugs, should make the UI look a bit more consistent and “modern”, and includes some cleanups at the code level that I’ve been wanting to do for some time, like using G_DECLARE_FINAL_TYPE, which helped me get rid of ~1.7K LoC.

Last, I’ve created a few packages for Ubuntu in my PPA that you can use now already if you’re in Vivid or later while it does not get packaged by the distro itself, although I’d expect it to be eventually available via the usual means in different distros, hopefully soon. For extra information, just take a look to frogr’s website at

Now remember to take lots of pictures so that you can upload them with frogr 🙂

Happy new year!

Importing include paths in Eclipse

Published / by mario / 1 Comment on Importing include paths in Eclipse

First of all, let me be clear: no, I’m not trying to leave Emacs again, already got over that stage. Emacs is and will be my main editor for the foreseeable future, as it’s clear to me that there’s no other editor I feel more comfortable with, which is why I spent some time cleaning up my .emacs.d and making it more “manageable”.

But as much as like Emacs as my main “weapon”, I sometimes appreciate the advantages of using a different kind of beast for specific purposes. And, believe me or not, in the past 2 years I learned to love Eclipse/CDT as the best work-mate I know when I need some extra help to get deep inside of the two monster C++ projects that WebKit and Chromium are. And yes, I know Eclipse is resource hungry, slow, bloated… and whatnot; but I’m lucky enough to have fast SSDs and lots of RAM in my laptop & desktop machines, so that’s not really a big concern anymore for me (even though I reckon that indexing chromium in the laptop takes “quite some time”), so let’s move on 🙂

However, there’s this one little thing that still bothers quite me a lot of Eclipse: you need to manually setup the include paths for the external dependencies not in a standard location that a C/C++ project uses, so that you can get certain features properly working such as code auto-completion, automatic error-checking features, call hierarchies… and so forth.

And yes, I know there is an Eclipse plugin adding support for pkg-config which should do the job quite well. But for some reason I can’t get it to work with Eclipse Mars, even though others apparently can use it there for some reason (and I remember using it with Eclipse Juno, so it’s definitely not a myth).

Anyway, I did not feel like fighting with that (broken?) plugin, and in the other hand I was actually quite inclined to play a bit with Python so… my quick and dirty solution to get over this problem was to write a small script that takes a list of package names (as you would pass them to pkg-config) and generates the XML content that you can use to import in Eclipse. And surprisingly, that worked quite well for me, so I’m sharing it here in case someone else finds it useful.

Using frogr as an example, I generate the XML file for Eclipse doing this:

  $ pkg-config-to-eclipse glib-2.0 libsoup-2.4 libexif libxml-2.0 \
        json-glib-1.0 gtk+-3.0 gstreamer-1.0 > frogr-eclipse.xml

…and then I simply import frogr-eclipse.xml from the project’s properties, inside the C/C++ General > Paths and Symbols section.

After doing that I get rid of all the brokenness caused by so many missing symbols and header files, I get code auto-completion nicely working back again and all those perks you would expect from this little big IDE. And all that without having to go through the pain of defining all of them one by one from the settings dialog, thank goodness!

Now you can quickly see how it works in the video below:

VIDEO: Setting up a C/C++ project in Eclipse with pkg-config-to-eclipse

This has been very helpful for me, hope it will be helpful to someone else too!

GStreamer Hackfest 2015

Published / by mario

Last weekend I visited my former office in (lovely) Staines-upon-Thames (UK) to attend the GStreamer hackfest 2015, along with other ~30 hackers from all over the world.

This was my very first GStreamer hackfest ever and it was definitely a great experience, although at the beginning I was really not convinced to attend since, after all, why bother attending an event about something I have no clue about?

But the answer turned out to be easy in the end, once I actually thought a bit about it: it would be a good opportunity both to learn more about the project and to meet people in real life (old friends included), making the most of it happening 15min away from my house. So, I went there.

And in the end it was a quite productive and useful weekend: I might not be an expert by now, but at least I broke the barrier of getting started with the project, which is already a good thing.

And even better, I managed to move forward a patch to fix a bug in PulseAudio I found on last December while fixing an downstream issue as part of my job at Endless. Back then, I did not have the time nor the knowledge to write a proper patch that could really go upstream, so I focused on fixing the problem at hand in our platform. But I always felt the need to sit down and cook a proper patch, and this event proved to be the perfect time and place to do that.

Now, thanks to the hackfest (and to Arun Raghavan in particular, thanks!), I’m quite happy to see that the right patch might be on its way to be applied upstream. Could not be happier about it! 🙂

Last, I’d like to thank to Samsung’s OSG, and specially to Luis, for having done a cracking job on making sure that everything would run smoothly from beginning to end. Thanks!

Frogr 0.11 released

Published / by mario / 6 Comments on Frogr 0.11 released

Screenshot of Frogr 0.11

So, after neglecting my responsibilities with this project for way too long, I finally released frogr 0.11 now, making the most that I’m now enjoying some kind of “parenting vacation” for a few days.

Still, do not expect this new release to be fully loaded of new features and vast improvements, as it’s more like another incremental update that adds a couple of nice new things and fixes a bunch of problems I was really unhappy about (e.g. general slowness, crashes).

Wrapping it up, the main changes included with this release are:

  • Moved to the new GTK+’s header bar plus the typical menu button when GTK+ >= 3.12 (GTK+ 3.4 is still supported). I personally like this change a lot, as it makes frogr much more compact and sleek IMHO, and much better integrated with newer releases of GNOME.
  • Added a new option to automatically replace the “date posted” field in flickr with the “date taken” value from the EXIF metadata when uploading pictures. Useful to keep your photo stream sorted regardless of when you uploaded which pictures. Thanks a lot to Luc Pionchon for requesting this feature. I never thought of it before, now I use it all the time!
  • Sped up the load of pictures into the main window, as it was a very slow process when importing tags from the XMP keywords was enabled. I measured a 3x improvement, but YMMV.
  • Fixed random crashes due to the missing initialization of the gcrypt library introduced with the recent changes to use SSL API end points. Thanks a lot Andrés for your help with this!
  • Fixed issues related to the OS X port, which prevented frogr 0.9 from having video support and caused many problems with the 0.10 release. Now it should be fine, grab the bundle from here.
  • Other things: removed calls to deprecated APIs, updated translations, fixed a few minor bugs and a bit of a clean-up here and there, which is usually good.

As usual, feel free to check the website of the project in case you want to know more about frogrhow to get it or how to contribute to it. I’m having a hard time lately to find time to devote to this pet project, so any help anyone can provide will be more than welcome 🙂 fosdem-15-logo

By the way, I’m going to FOSDEM this year again, so feel free to say “hi” if you want to chat and/or share a beer (or more!).

Endless changes ahead!

Published / by mario / 2 Comments on Endless changes ahead!

I know I haven’t blogged for a while, and definitely not as much as I would like, but that was partially because I was quite busy during my last days in Samsung (left on the 25th of July), where I wanted to make sure I did not leave any loose end before departure, and that everything was properly handed over to the right people there.

But that was one month ago… so what did I do since then? Many many things, and most of them away from a keyboard, at least until the past week. Main highlights:

  • One week travelling by car with my family all the way down to Spain from the UK, through France, visiting all the nice places we could (and could afford) in the way, which was a lot of fun and an incredible experience.
  • The goal of taking the car to Spain was to sell it once we were there and, surprisingly enough, we did it in record time, so one thing less to worry about…
  • 2 weeks in Spain having proper “relaxing holidays” to get some quality time off in between the two jobs, to properly recharge batteries. Not that the previous week was not holidays, but travelling 2200 km by car with two young kids on the back can be amazing and exhausting at the same time 🙂
  • 1 week in the UK to make sure I had everything ready by the time I officially started in the new company, where I will initially be working from home: assemble a home office in my spare bedroom, and prepare my new laptop mainly. In the end, we (my wife helped me a lot) finished by Wednesday, so on Thursday we went for a last 2-day getaway to Wales (what a beautiful place!) by car, making the most that we were kids-free.

Endless Mobile logoTherefore, as you can imagine, I didn’t have much time for blogging lately, but still I would like to share with the world my “change of affiliation” so here it is: since yesterday I’m officially part of the amazing team at Endless, an awesome start up from San Francisco committed to break the digital divide in the developing world by taking GNOME-based technology to the end users in ways that were not imaginable before. And I have to say that’s a vision I fell in love with since the very first time I heard about it (last year in Brno, during Matt’s keynote at GUADEC).

But just in case that was not awesome enough by itself, the other thing that made me fall in love with the company was precisely the team they have assembled, because even if I’m mostly a technical guy, I still value a lot the human side of the places I work in. And in this regard Endless seems to be perfect, or even better!

So, I’m extremely happy these days because of this new challenge I’m seeing in front of me, and because of the opportunity I’m being given to have a real positive impact in the lives of millions of people who still can’t access to technology as they should be able to do it. Also, I feel blessed and privileged for having been given the chance to be part of such an amazing team of people. Could not be happier at this time! 🙂

Last to finish this post, I would like to say thanks to my friend Joaquim, since he was who introduced me to Matt in the first place and “created” this opportunity for me. Thank you!

Frogr 0.10 released

Published / by mario / 2 Comments on Frogr 0.10 released

frogrQuick post to let the world know that I’ve just released a new version of frogr right now, in order to address a few issues present in the previous version. Mainly:

  • Deprecation of non-SSL end points for the Flickr API (see these two posts for more info). From now on, frogr will use SSL-only API calls.
  • Address issues with frogr‘s AppData file. Apparently, the AppData file was neither valid (according to appdata-validate) nor being installed properly, preventing frogr from showing up nicely in the GNOME Software app.
  • Allow disabling video uploads at configuration time (enabled by default), instead of making the decision depending on the detected platform. This will hopefully make life easier for packagers of other platforms (e.g. MacPorts).
  • Removed libsoup-gnome code once and for all (API deprecated a while ago).
  • Other things: updated translations and fixed a few minor bugs.

As usual, feel free to check the website of the project in case you want to know more about frogrhow to get it or how to contribute to it.

Frogr 0.9 released

Published / by mario

So, after a bit more than one year without releasing any version of frogr, I finally managed to get some “spare” time to put all the pieces together and ship the ninth version of it, which I believe/hope is going to be a quite solid one.

Frogr 0.9

In all honesty, though, this version does not come with many new features as the previous ones, yet some changes and fixes that I believe were quite necessary, and therefore should help improving the user experience in some subtle ways.

For instance, the layout of the dialog to edit the details of a picture has changed (as per Ana Rey‘s comments during GUADEC) to enable a more efficient usage of vertical space, so much needed these days in small widescreen laptops. Of course, design-wise still sucks, but I believe it’s much more convenient now from a pragmatical point of view.

Also, frogr is now a little bit more “modern” in things such as that it now supports GStreamer 1.0 (0.10 still supported), a lot of deprecated code (e.g. Stock items, GtkActions) has been replaced internally and it now integrates better with GNOME Shell’s search box. Ah! and it also now provides an AppData file to integrate with GNOME Software Center, which is a nice touch too.

Another interesting thing is that I finally fixed the problem that we have with multiple selections in the main view, which was neither intuitive nor very useful, as Ctrl and Shift modifiers did not work as expected. So, from now on, it is finally possible to work with disjoint multiple selections of pictures, a feature I was missing so much.

Last, I fixed two important problems in the code that caused frogr consume two much memory, specially after uploading pictures. It was a quite severe problem since frogr was not properly freeing the memory used by pictures even after those were uploaded and removed from the UI, causing important issues in cases where people tried to upload a lot of pictures at once. It’s hopefully fixed now.

And that’s all I think. As usual, you can check the website of the project to know how to install frogr on your system if you don’t want to wait for your favourite distribution to ship it, or if you just want to check more information about the project or to contribute to it.


Ah! By the way… I’m going to FOSDEM again this year, but this time by train. Can’t wait to be there! 🙂

WebKitGTK+ Hackfest 2013: The Return of the Thing

Published / by mario

The WebKitGTK+ Hackfest 2013As many other WebKitGTK+ hackers (30 in total), I flew last Saturday to A Coruña to attend the 5th edition of the WebKitGTK+ Hackfest, hosted once again by Igalia at their premises and where people from several different affiliations gathered together to try to give our beloved port a boost.

As for me, I flew there to work mainly on accessibility related issues, making the most of the fact that both Joanie (Orca maintainer) and Piñeiro (ATK maintainer) would be there too, so it should be possible to make things happen faster, specially discussion-wise.

And turns out that, even if I feel like I could have achieved more than what I actually did (as usual), I believe we did quite well in the end: we discussed and clarified things that were blocking the mapping of new WAI-ARIA roles in WebKitGTK+, we got rid of a bunch of WebKit1-specific unit tests (Joanie converted them into nice layout tests that will be run by WebKit2GTK+ too), we got a few new roles in ATK to be able to better map things from the web world and and we fixed a couple of issues in the way too.

Of course, not everything has been rainbows and unicorns, as it seems that one of the patches I landed broke the inspector for WebKit2GTK+ (sorry Gustavo!). Fortunately, that one has been rolled out already and I hope I will be able to get back to it soon (next week?) to provide a better patch for that without causing any problem. Fingers crossed.

In the other hand, my mate Brian Holt joined us for three days too and, despite of being his first time in the hackfest, he got integrated pretty quickly with other hackers, teaming up to collaborate in the big boost that the network process & multiple web processes items have went through during the event. And not only that, he also managed to give a boost to his last patch to provide automatic memory leak detection in WebKitGTK+, which I’m sure it will be a great tool once it’s finished and integrated upstream.

Anyway, if you want more details on those topics, or anything else, please check out the blog posts that other hackers have been posting these days, specially Carlos’s blog post, which is quite extensive and detailed.

Samsung LogoOf course, I would like to thank the main sponsors Igalia and the GNOME Foundation for making this thing happen again, and to my employer Samsung  for helping as well by paying our trips and accommodation, as well as the snacks and the coffee that helped us stay alive and get fatter during the hackfest.

Last, I would like to mention (in case anyone reading this wondered) that it has indeed felt a bit strange to go the city where I used to live in and stay in a hotel, not to mention going to the office where I used to work in and hang around it as a visitor. However, both my former city and my former colleagues somehow ensured that I felt as “at home” once again, and so I can’t do anything about it but feeling enormously grateful for that.

Thank you all, and see you next year!

Goodbye Pango! Goodbye GAIL!

Published / by mario / 2 Comments on Goodbye Pango! Goodbye GAIL!

As I mentioned in my previous post before GUADEC, I’ve been putting some effort lately on trying to improve the accessibility layer of WebKitGTK+, as part of my work here at Samsung, and one of the main things I’ve worked on was the removal of the dependency we had on Pango and GAIL to implement the atk_text_get_text_*_offset() family of functions for the different text boundaries.

And finally, I’m really happy to say that such a task is complete once and for all, meaning that now those functions should work as well or as bad on WebKit2GTK+ as they do in WebKitGTK+, so the weird behaviour described in bug 73433 is no longer an issue. You can check I’m not lying by just taking a look to the commit that removed both all trace of Pango and GAIL in the code, as well as and the one that removed the GAIL dependency from the build system. And if you want more detail, just feel free to check the whole dependency tree in WebKit’s bugzilla.

This task has been an interesting challenge for me indeed, and not only because it was one of the biggest accessibility related tasks I’ve worked on in WebKitGTK+ since late 2012 (so I needed to get my brain trained again on it), but also because reimplementing these functions forced me to dive into text editing and accessibility code in WebCore as I never did before. And it’s so cool to see how, despite of having to deal eventually with the frustrating feeling of hitting my head against a wall, at the end of the day it all resulted on a nice set of patches that do the work and help advance the state of the ATK based accessibility layer in WebKitGTK+ forward.

Anyway, even though that is probably the thing that motivated me to write this blog post, that was not the only thing that I did since GUADEC (which has been a blast, by the way):

On the personal side, I’ve spent two lovely weeks in Spain on holidays, which was the biggest period of time I’ve been outside of the UK since I arrived here, and had  an amazing time there just “doing nothing”(tm) but lying around on the beach and seeing the grass grow. And there is not much grass there anywhere, so you can imagine how stressful that life was… it was great.

In the other hand, on the professional side, I’d say that one of the other big things that happened to me lately was that I finally became accepted as a WebKit reviewer, meaning that now I can not only help breaking the Web, but also authorize others to do it so. And while agree that might be fun in some way, it probably would not be very cool, so forgive me if I try instead to do my best to help get exactly the opposite result: make things work better.

And truth to be told, this “upgrade” came just with perfect timing, since these days quite some work is being done in the accessibility layer for both the WebKitGTK+ and the WebKitEFL ports thanks also to my mates Denis NomiyamaAnton ObzhirovBrian Holt and Krzysztof Czech from Samsung, and that work would ideally need to be reviewed by someone familiar with the ATK/AT-SPI based accessibility stack. And while I’m still by far not the most knowledgeable person in the world when it comes to those topics, I believe I might have a fairly well knowledge about it anyway, so I assume (and hope) that my reviews will certainly add value and help with those specific pieces of work.

And as a nice plus, now I can finally “return the favour” to the only accessibility reviewer WebKit had until now (Chris Fleizach) by helping reviewing his patches as well, in a similar fashion to what he has been tirelessly doing for me for the last 3 years and a half. Yay!

To finish , I’d like to get back again to the original topic of this post and say a big “thank you” to everyone who helped me along the way with the removal of Pango and GAIL from the ATK specific code. Special thanks go to those who spend time performing the code reviews, as it’s the case of Martin, Gustavo and Chris. I wouldn’t be writing this post otherwise.


I’m going to GUADEC!

Published / by mario / 1 Comment on I’m going to GUADEC!

I'm attending GUADECOne year again GUADEC is approaching and, also again, I’m very happy to say that I’ll be there as well this time, even if I have to recognize it was not on my plans for this year, at least not initially.

And the reason why it was not initially in my plans was mainly because I’ve been already through quite some changes during these past months year, and my family just came over to the UK two months ago. This means that, even I already arrived by the beginning of the year, we just started to settle here as a family a few weeks ago. So in that context, I didn’t feel like leaving them alone for one week already now, it definitely would look like a “wrong management of priorities” to me.

However, it turns out that my wife and kids won’t be here anyway during the first week of August and, on top of that, Samsung has been so kind to sponsor this trip just based on the simple fact that I’m part of the GNOME community. So, I certainly can no longer find a single reason not to go and spend 7 amazing days in Brno, meeting people that I normally see only in conferences (and this time that group of people will be bigger than ever, since my former mates from Igalia are now also included there), while attending to what it seems to be a very appealing event.

Also, I will try to make the most of the trip to do some work during the different hackfests and BoFs that are already planned, which special focus in the one about accessibility, of course. As a personal goal, I expect to have the chance to move forward some work I’ve been doing lately in the WebKitGTK+ a11y world, such as getting rid of the nasty dependency on Pango/Gail we still have there, something I’ve been already working on for some time now, and which I expect it will be fixed soon, hopefully before GUADEC, although time will tell.

Once that it’s fixed, WebKit2GTK+ based apps should recover the ability to properly expose text through the atk_text_get_text_*_offset() family of functions for different text boundaries, which means that ATs (e.g. the Orca screen reader)  will be able to properly allow again line-by-line navigation when in caret browsing mode. And, as you can imagine, this is quite a big problem these days, since WebKit2GTK+ that has become the default backend for some core apps such as the Epiphany browser with the GNOME 3.8 release, so fixing this is like a high priority now, I’d say.

Samsung LogoAnyway, I’m starting to write too much (as usual) for what it was going to be a short “I’m going to GUADEC” blog post, so I will stop right now, although not without first thanking Samsung for sponsoring this my first trip to the Czech Republic.

See you all in three weeks!

WebKit Contributors Meeting 2013

Published / by mario / 2 Comments on WebKit Contributors Meeting 2013

It turns out I’m writing this post at 6:00 AM in the morning from a hotel instead of doing it at a more reasonable time from my comfy home or a nice cafeteria in Staines. That’s already quite a new thing by itself, and the reason for that is not that I became crazy or something, but the fact that I’m completely jet-lagged in California right now in order to attend my second WebKit Contributors Meeting (my first time was in 2011), this time as part of the Samsung team in the UK R&D center, together with my mate Anton Obzhirov.

With regard to that, it has been a very interesting experience so far where I could meet new people I still haven’t had the chance to see in real life yet (e.g. my mates from other Samsung R&D centers or some guys from Apple I didn’t have the chance to meet in person before), as well as chat again with some friends and former mates that I haven’t seen for a while, such as Martin, Xan and Philippe from Igalia, Byungseon from LG, Nayan from Motorola or Gustavo from Collabora to mention some of them. It’s strange, and at the same time wonderful, how easily you can catch up on conversations with people that you barely see once a year (or even less) and mainly in conferences, and definitely one of my favourite parts of attending these kind of events, to be honest.

Also, from a less social point of view, I have to say I found very interesting the sessions I’ve attended so far, specially the one about “managing the differences between ports”, although the one about “build systems” was quite interesting too. Not sure how far we are yet in the WebKitGTK+ port from realistically switching to some kind of commonly agreed build system (cmake?), but at least it’s a good start to agree on the fact that it would be an interesting move and now that some people pushing for it.

My only regret about this first day is that I missed Hyatt‘s talk about pagination due to some health issues I’m experimenting while in California, mostly due to the extremely hot and dry weather (anything over 25 Celsius is “unbearable hot” for me), which is causing me a little bit of cough, sore throat and fever, all well mixed with the jet lag to make it a perfect “welcome pack” to the meeting. Fortunately, I got some “interesting” medicines that seem to have relieved a bit the pain and I could attend the rest of the sessions without much trouble, other than some occasional coughing. Not bad.

By the way, for those of you who were not lucky enough to attend the meeting but are anyway interested in the topics being discussed here, make sure you check the main TRAC page for the meeting, where you can also find transcripts for most of the sessions.

As for today, some more sessions will take place as well as a couple of hackathons so I expect it to be very interesting as well. Also I hope I can find some time too to work a bit on my patches to remove the nasty dependency on pango we have in WebKitGTK+ accessibility code, which is preventing us to have proper caret navigation in WebKit2GTK+ based browsers, as well as to discuss possible ways in which our lab could collaborate more actively upstream. Seems a promising day already!

Last (but not least), and in a completely unrelated and super-off-topic way, I would like to tell the world that I’m extremely happy for the fact that next week will be the end of my “lonely existence in the UK”, finally. After 4 months of living alone in Staines away from my family with just some flash trips from Friday to Sunday (every 2 weeks), I’m once and for all travelling on Thursday to my home town with a one way plane ticket to do some final arrangements, put everything (family included!) in the car and travel to Santander, where we’ll be taking a ferry that will take us to the Portsmouth (southern coast of England), from where we will just drive to Staines in order to start our new life, all together again.

It has been quite hard for us to live this way for so long, but I think in the end we managed to handle the situation quite well, and now it seems all our efforts are already paying off because things seem to be finally fitting in the right places: we have a lovely house in Staines, we have a place in a nearby public school for my oldest kid to start on September, most of the needed paperwork seems to be done and we already moved all our stuff from Spain (lots of toys!), which is now waiting to be used in our new place.

I really can’t wait to live again in the noisy and chaotic atmosphere that two kids can so easily create around them. Even if that means it will probably drive me crazy every now and then and that I won’t sleep that well sometimes.

Yes. Even considering that.

Accessibility in [WebKit]GTK+

Published / by mario / 8 Comments on Accessibility in [WebKit]GTK+

This past week I’ve spent some time explaining to my mates at Samsung the basics about how accessibility works and is implemented in WebKitGTK+. I realized, yet again, of how messy and confusing everything can be the first time you encounter these things. After all, WebKit is quite a complex project already and accessibility is not a simple matter either.

In order to help them better understand this topic, I wrote a summary to have as reference that explains in my own words which the main pieces of the whole puzzle are, and how they relate to one another. In my experience, it’s not always easy to understand the big picture quickly, and I think this kind of documentation can be quite useful for anyone willing to contribute to accessibility in WebKitGTK+. At least it would have been useful for me when I started working on this. I only regret not having written it before, but better late than never, right?

So let’s begin then. I will start by talking about accessibility-only stuff, which are basically common to any accessible application based in GTK+. Then I will explain the bits specific to WebKitGTK+ and how they fit in the picture.

Accessibility in GTK+ applications

The parts, or “actors”, involved in any GTK+ application from an accessibility point of view are:

  • Assistive Technologies (ATs)
  • AT-SPI (Assistive Technology Service Provider Interface)
  • ATK (Accessibility ToolKit)
  • ATK <-> AT-SPI bridge
  • GTK+
  • GTK’s Accessibility Implementation

Accessibility in GTK+ applications

Now let’s describe all those points, one by one:

Assistive Technologies (ATs):

ATs are applications whose main purpose is to facilitate access and/or interaction with certain bits of information interesting from an accessibility related point of view, exposed by other applications. This access/interaction can be primarily output based. For instance the Orca screen reader is an AT which provides access via text to speech and/or refreshable braille to on-screen information exposed by editors, browsers, mail agents and other applications.

Other ATs are primarily input based, allowing the user to interact with the exposed applications by executing certain actions over them (e.g. clicking on a exposed link), so it’s not just about “consuming” information. Normally, ATs are called the clients and the applications exposing information the servers, as in the end it’s actually an implementation of a typical client/server architecture.

AT-SPI (Assistive Technology Service Provider Interface):

Set of interfaces that Assistive Technologies (the clients) understand and use to inspect and interact with the accessible content exposed by applications in Linux environments. At some point, “someone” has to provide actual AT-SPI objects (linked together forming a AT-SPI hierarchy) implementing several of those interfaces (depending of the type of object) so ATs can “see them”.

This is the job of the AT-SPI registry, a daemon which takes care of maintaining a hierarchy of AT-SPI objects for every single accessible application in the system, in a centralized way, so ATs can interact with them. It is worth mentioning that the parent/children relationships in that hierarchy are modelled in terms of D-Bus, so different AT-SPI objects can belong to different processes.

ATK (Accessibility ToolKit):

The toolkit used by GTK+ applications to expose accessible representations of the toolkit’s objects, along with appropriate interfaces, on the side of the applications exposing content (the servers). This representation is an almost a 1:1 match with the objects and interfaces defined by AT-SPI (that is, almost).

The main difference when it comes to understanding its place in the puzzle is that AT-SPI is what clients (ATs) understand, and that is not process-bounded (see previous point). ATK, in contrast, is what servers implement to expose accessible information, and it is process-bounded. Thus the parent/children relationships in the ATK hierarchy are modelled by actual references (pointers) between objects living in the same process.

ATK <-> AT-SPI bridge:

The glue that makes sure there’s a mapping between the ATK hierarchy living in the server process and the AT-SPI hierarchy held by the AT-SPI registry. Such a bridge is implemented in terms of D-Bus too, as it needs to communicate with the registry whenever something needs to be updated there, as well as when the server needs to react to external actions coming from ATs (e.g. perform the default action for an object).


The widgets toolkit normally used by applications embedding WebKitGTK+. Explaining what GTK+ is beyond the scope of this post, so I will assume you already know what it is.

GTK’s Accessibility Implementation:

Provides ATK objects implementing different ATK interfaces for every widget from the GTK+ library, and uses the ATK <-> AT-SPI bridge to communicate with the AT-SPI registry. This means that if you use standard GTK+ widgets only, your application will be accessible out-of-the-box. On the contrary, should you use custom widgets, you’ll probably have to write custom ATK objects implementing the proper ATK interfaces to make them accessible too.

So that’s all so far, when it comes to GTK+ applications. Check the following diagram for a more detailed look at all these hierarchies for a hypothetical GTK+ application exposing information and a screen reader accessing it:

Accessibility in GTK+ applications: a specific exampleAs you can see, there’s an ATK tree matching the GTK+ hierarchy, and another AT-SPI tree matching the ATK one. Finally, the screen reader accesses the information through that AT-SPI tree, as explained above.

Accessibility in WebKitGTK+

Now that we already understand the basics of accessibility in GTK+ applications, let’s add the bits specifically related to WebKitGTK+. Namely:

  • WebCore’s Accessibility Objects
  • WebKitGTK+ (ATK) wrappers
  • WebKit2GTK+ specific details

Again, a picture is usually better than just text, so here you have one too:

Accessibility in WebKitGTK+

In order to clarify it a bit more before explaining each point, let’s just say that  you’ll have to look in the dashed box named WebCore accessibility world, where the hierarchy on the left (red & orange) represent the WebCore Accessibility objects, while the one on the right (the green one) represents the WebKitGTK+ ATK wrappers.

With this in mind, let’s examine these three points in more depth:

WebCore Accessibility objects:

Similar to GTK’s Accessibility Implementation, WebCore‘s accessibility objects are the implementation of an independent hierarchy exposing accessibility related information for objects present in a web page. As the mission of accessibility in WebKit is to expose information to users that are normally being rendered in the screen (as well as some other information that might be hidden to regular users), there is a tight relationship between this hierarchy and other ones in WebKit, such as the DOM tree and the Render Objects tree.

This layer is meant to be platform-agnostic, so you won’t find much WebKitGTK+ specific stuff here. Instead, you will find the implementation of the accessibility related specifications published by the W3C‘s Web Accessibility Initiative (WAI), such as WAI-ARIA.

WebKitGTK+ ATK wrappers:

An ATK-based implementation of an accessibility hierarchy where every ATK object will take care of wrapping the proper accessibility object from WebCore, as well as implementing the proper ATK interfaces depending on the situation (e.g. the role of the WebCore accessibility object, some properties coming from the associated Render Object…).

The ATK hierarchy created here is connected with the ATK hierarchy from the embedding application (normally a GTK+ app) by setting the root ATK object in this tree (normally representing DOM‘s root element) as the child of the leaf ATK object in the tree coming from the embedding application (normally the GtkWidget containing the WebView).

As is the case with any other regular GTK+ application, this ATK hierarchy will finally be seen by ATs thanks to the translation that the ATK <-> AT-SPI bridge will do for us, making the whole ATK tree from the WebKitGTK+ based application (from the top level GTK+ window down to the deepest accessibility object inside WebCore) available to the AT-SPI registry by means of D-Bus.

WebKit2GTK+ specific details:

I already talked about this in previous posts, so I will focus here just on commenting the main difference compared to the generic case for WebKitGTK+ described earlier (see previous diagram above):

WebKit2GTK+ implements a split-process model, where the  high level API belongs to one process (the UI process) while the core logic of the web engine lives in another one (the Web process).

From an accessibility point of view, this means that the full hierarchy of ATK objects we had before is also split in two parts: some accessibility objects are now in the UI process and the rest of them will be in the Web process.

To be more specific, we’ll find the following objects in each process:

As I explained previously, these two ATK hierarchies will be seen as a single accessibility hierarchy by ATs thanks to the “magic” of AtkPlug and AtkSocket classes, which takes care of exposing everything together in a single AT-SPI tree. And remember that such a tree is modelled by means of D-Bus, so it does not matter that things are actually in different processes.

Thus, since ATs just  understand AT-SPI, they will see The Right Thing ™ as in the previous case where we have one single process. See the following diagram for a more visual explanation of this:

Accessibility in WebKit2GTK+

Wrapping up

So that’s it. At the end the post turned out to be longer than what I was expecting, as my initial idea was to publish the stuff I wrote internally at Samsung this week, but ended up extending it quite a lot!

At least I hope this will be helpful for anyone willing to contribute to accessibility, either in WebKitGTK+ or in a more general way.

After all, most of the stuff I talked about here applies to  every accesible GTK+ application: Assistive Technologies (ATs)AT-SPIATK, the ATK <-> AT-SPI bridge

Last, I would like to thanks Joanmarie Diggs from Igalia for her help with this blog post. One certainly feels more confident writing a long article like this one about a very specific topic when you have one of the most experienced persons on the matter reviewing it!

My first week at SERI

Published / by mario / 9 Comments on My first week at SERI

So, after almost 3 months of “holidays”, I’ve finally started working on my new job this Tuesday in Samsung Electronics Research Institute UK (aka SERI), where I’ll join a team mainly working in A/V and DTV related stuff while, at the same time, I’ll keep contributing to WebKit and WebKitGTK+.

Samsung Smart TV Unveils New Smart HubAs you can imagine, being the first week means that I mostly spent my time learning a lot of stuff about my new job and the tools I’d be using, as well as setting up my development environment and getting to know my colleagues and the things we’ll be working on.

But for the time being I have to say that my first impression has already been very positive and that I’m enthusiastically looking at the future and what it’s going to be next. Surely it will be a very different experience compared to what I was used to, but in a way that’s precisely what I was looking for, and so that’s why I feel very optimistic and motivated about it.

Also, and besides work related stuff, being a new resident in the UK also means that I had to spend some time doing some additional things, such as creating a bank account, getting a UK-based SIM card and starting to look for a place that should become our permanent residence in 2-3 months time, once my wife and my children move as well to the UK (they’re still in Spain), hopefully before Easter. Fortunately, being a EU citizen simplifies a lot the whole thing of coming here to work, since I don’t need any VISA or the like. Just my Spanish ID and/or Passport are more than enough.

Anyway, I’ve just arrived in the UK on Monday and started working on Tuesday (yeah, I love having big margins) so still much to do left, but I’m already on my way so it’s a matter of time that we are settled here, and that we start living the “English adventure” all together again.

But in the meanwhile we’ll have to live with me visiting them every 2-3 weeks and the typical audio/video conference tools.

Can’t wait!

Frogr 0.8 released

Published / by mario / 5 Comments on Frogr 0.8 released

During the last weeks, I decided to make the most of some spare time I had while still in “nowhere land” (see my previous post) and so I’ve been working in frogr to see if I could release the 0.8 version before the end of the year. In my mind it looked like kind of a nice and humble Christmas present to the world and, at the same time, a interesting way to spent this time I had between my depart from my previous job and the start of the new one.

And it turns out that, at the end, I didn’t manage to have as much spare time as I initially expected to have (I was pretty busy most of the time, actually), mainly due to many unrelated things I needed also to take care of, but in the end I still managed to steal some minutes here and there and I’m now proudly announcing that the new release is finally out.

But before going on, see the mandatory screenshot, as taken in my Fedora 18 machine:

As you can already spot in the screenshot, some changes are already quite visible, but some others are not, so let’s now comment on the most important ones, one by one…

Ported to GtkApplication and GMenu

It’s no secret that one of my favourite changes in this release is the integration with GNOME 3‘s “global menu” (aka the application menu), which makes frogr more beatifully integrated with the desktop than ever. However that came with a price: I needed to port frogr to GtkApplication first and then implement both the application menu and the menu bar using GMenu, which also made me raise the required version for GTK+ up to 3.4.

Sure I could have kept adding more ifdefs to the code to keep supporting previous GTK+ versions, but I also saw this as a good opportunity to clean up the code and get rid of so many conditional compilation units that were increasingly harder to maintain, and so I did it. As a plus, the OS X specific code has been reduced enormously as well, since GTK+ 3.4 integrates very well with OS X without having to do anything special, as I needed to do when I used GTK+ 2.24 for that port.

Loading and saving ‘projects’

This has been one of the features that several people have suggested in the past in different occasions, and so one of those I hope people will enjoy the most with this new release: the possibility to save the current session into a “project file”, so you can resume your work later.

How it works it’s actually pretty simple: when you save a session to a project, frogr will just serialize your current pictures, sets, groups and local tags to a json file (using json-glib) that you can use to restore the state later. It could be more sophisticated, but I think that it works reasonably well in the tests I did considering what it was designed for. In any case, please feel free to report bugs or feature requests to improve or fix things if needed.

Support for video uploads

Believe it or not, frogr has been almost ready to upload videos since some time ago, since for Flickr a video is just a “moving picture”, and it’s treated in exactly the same way than pictures when it comes to the upload API.

The only thing that was missing to remove that almost from here was to generate thumbnails for videos so they could get loaded into the UI. Not rocket science, sure, but something which needed doing and which was not a priority at all until now. And to be honest, it is not a priority yet anyway, but I felt like doing it this time once and for all, so from now on you can upload videos too.

Other features & bug fixes

Besides those three and perhaps more noticeable features, frogr 0.8 comes with several other new things, bug fixes, small changes and refinement that I hope will make this release more stable, useful and fun to use than ever.

Some examples of those other new things are, as taken from the NEWS file:

  • Handle and report errors in a better way (no more mysterious failures).
  • Perform after-upload operations (add to sets/groups, set license…) in parallel.
  • Avoid fetching sets/groups/tags when still not connected yet to Flickr.
  • Hide title bar when main window is maximized (see screenshot above).
  • Renamed the ‘Actions’ menu to ‘Edit’ and brought the ‘File’ menu back.
  • Allow sorting elements in the icon view by size.

Last, I’m also quite happy to tell that the OS X port of frogr has been finally migrated to GTK+ 3 in this release (at last!), and that the whole process of building it for that platform is now easier than ever, thanks to a specific Jhbuild moduleset I created for that purpose, following the lead of GEdit (thanks Nacho for the suggestion).

Check out the README file in the osx/ directory if you feel curious about the process or if you want to build it yourself. It shouldn’t take more than 2-3 commands in the terminal to get something like this running in your OS X machine:

Also, another advantage of having that moduleset created, is that now it’s trivial to properly document (by means of a shell script) the bundle file used to distribute frogr in OS X, instead of just providing an “opaque” pre-compiled bundle, as I used to do in an “unofficial way” with previous versions. Feel free to grab the bundle I’ve just created for this release from the GNOME FTP server.

So that’s it. I hope you enjoy using frogr 0.8 as much as I did writing it, and if you eventually find it useful too, then even better! As usual, check the website of the project for additional information or just to know how to install frogr on your system.

Moving On

Published / by mario / 14 Comments on Moving On

Two months ago it was an important day for me. It was the day that I finally told my partners at Igalia that I’d be leaving the company, after almost seven years. It hasn’t been an easy decision to make and so this hasn’t been an easy post to write either… yet one I’d like to write anyway.

But let’s push the rewind button for a moment now…

I’ve joined Igalia on November 2005, initially as a trainee while I was finishing my studies of Computer Science Engineering, and got quickly hooked by the company, the people that was part of it back then and the kind of project they were trying to build.

Igalia as a company is one of a kind, you can be sure of it, and I felt enormously lucky for having found it and having been granted with the privilege of being part of it. And best of all… it happened to have its main office in my own town! I just couldn’t believe it…

I even still recall now how many mates of mine in the Faculty were telling me, back in the days of the University, things like “that Linux thing you like so much is not worth it”, “forget about Open Source, you won’t ever make a living out of it” or even “well, maybe there’s a chance for you to work on that, but it’s definitely not going to happen here”.

I have to say I never believed much in any of those statements (well, maybe a bit the last one), but I swear I couldn’t have ever imagined that I’d be able to prove all of them wrong at the same time without even having to move out of the country, let alone the town.

It was too good to be true. But it was true and real… it definitely was real.

And turns out that what started as a 3-month internship in late 2005, became my first permanent job (and the only one so far) when I became a regular employee on February 2006, to finally become a partner of the company in 2010. Not bad.

I worked on many different projects across all these years, from system administration tasks and pure web development to application development over the GNOME and the Maemo platforms, to end up working on what it probably became the most challenging and interesting thing I’ve ever worked on: the WebKit project and, more specifically, the WebKitGTK+ port.

Additionally, I also met a lot of awesome people while there, both inside Igalia and outside (e.g. at conferences), in some cases  becoming closer to “actual friends” than to “just work mates”, which is yet another great thing I will always feel lucky and grateful for.

In other words, I grew up there, both at the professional and the personal level, and I feel endlessly grateful for that. I’m sure my life wouldn’t have been the same now without that stage in my life, so I don’t have more than good words and thoughts about it.

However, and even if I still think Igalia is an awesome place to be part of, I’ve been lately feeling like I needed a change, to try something new, to move on…

I’m not sure about how much that could be related to the fact that my life is now quite different than seven years ago, and that perhaps my priorities could have shifted now I have my own family, but the fact is that at some point I very clearly saw that I would need to try something else, to change some things and patterns in my life, kind of a “fresh restart”.

And after so much thinking, I suddenly realized such a  change couldn’t ever happen if I stayed in Igalia, since it would probably require that the company stopped being as it is in some ways. And that’s something I don’t think I should ask for “just because I felt that way”. That would be too selfish, don’t you think?

So I made the only decision I thought it made sense: to quit.

Sure it was hard, and even tough at some moments, to make such a decision. But once I made it for real, I have to say I felt very well about it, as if everything was making sense once again, as if the puzzle I was trying so hardly to solve was finally complete.

In any case, this doesn’t mean I want to work on something completely different either. In my lollipop world, my plan is to keep working around the Open Source world as much as possible, hopefully also around GNOME and WebKit, the two platforms I learned to love during these years. Well, actually for the case of GNOME I must say it’s a platform I already loved before joining Igalia, but I can’t deny that being part of that company played a major role to help me get more involved on it, so that’s why I think it deserves some credit.

Fortunately, I’m a lucky guy and I can already say that, just two months after making that decision and starting looking for new opportunities, I already found a job where I think I’ll be able to keep working in what I love (see paragraph above) while, at the same time, being also able to try something different and new compared to what I’ve done so far.

Additionally, I think this new job will also help me find answers to the questions that have been crossing my mind lately, let alone learning new stuff… I’m sure I’ll learn a lot of new stuff as well, something I already can’t wait for.

Anyway, I won’t start working there until January, so let’s go step by step.

First I needed to write this post to tell the world about my new situation (check). Second, I need to use these “two months in nowhere” to re-organize my life and arrange many different things related to the short-term (work in progress). Finally, I’ll start that new stage in my life and finally announce here where I’m going to, something I’d rather keep for another post.

Surely I know all this will mean big challenges for both me and my family (we’ll be moving abroad, to begin with), but those are challenges we’re willing to face and can’t wait for. In a way, I kind of feel like I did 7 years ago right before joining Igalia, when I just finished my studies at the University and still had no clue what I was going to do with my life. Back then, the future looked uncertain and full of opportunities at the same time, and if I now look backwards I can clearly see it was even better than what I’ve would ever have expected. Really.

And you know what? That’s exactly how I feel right now, and that’s a feeling I’m liking a lot. And believe me, I’m pretty much aware that my current situation (married and with two children) is quite different compared to 7 years ago. Yet it doesn’t scare me well enough not to feel thrilled about this new stage in our life, a stage I’m already eager to deal with.

So it’s time to move on. I won’t ever forget the great time I had at Igalia, all the people I met here and all the good things that being part of such an special company brought to my life, but I also think now it’s time to look forward and focus on the future.

I have the most amazing family in the world and we’ll be together on this through thick and thin, so I’m already sure we’ll be fine. It’s just a matter of time we’ll get there, so what else can I ask for?

Just wish us good luck. That should do the rest 🙂

WebKitGTK+ 1.10 is almost here!

Published / by mario / 4 Comments on WebKitGTK+ 1.10 is almost here!

As you might already know, the new and shiny 3.6 release of the GNOME desktop is right around the corner, and so it’s the next release of WebKitGTK+, the port of the WebKit web rendering engine to the GTK+ platform.

And it turns out that such a release is going to be a very special one for us, members of the WebKit team at Igalia,  since it comes with some very interesting features, like those I already mentioned in the talk I gave during the past GUADEC, mainly:

  • Beta version of the WebKit2GTK+ API
  • Support for Accelerated Compositing
  • WebGL enabled by default
  • Support for HTML5 Fullscreen and WebAudio
  • Multimedia layer ported to GStreamer 0.11
  • Support for the Low-Level Interpreter in JavaScriptCore

From all those, I’m specially happy because we will be finally releasing the very first beta version of the new WebKit2GTK+ API, based in the multi-process architecture of WebKit2, as well as providing support for Accelerated Compositing and WebGL.

This new WebKit2GTK+ API, as you perhaps already know, will allow applications gain the split process model of WebKit2 out-of-the box, which is awesome. Xan already mentioned  some of the advantages of it becoming beta for GNOME 3.6 in his last post this week, being my favorite ones the “increased responsiveness and stability” (quoting Xan) that will come with it, as well as the fact that it will be not only powerful enough to port old applications and write new ones, but also simpler and easier to use (we are putting a lot of effort on this).

And honestly, I think we are doing pretty well in that regard, even though there’s still a lot of work to do before we can release an stable version of this new API (due for WebKitGTK+ 2.0,  to be released with GNOME 3.8), which will also mean the very first version of Epiphany that will be using WebKit2 by default.

With regard to Accelerated Compositing and WebGL, I’d just like to mention that having them supported in WebKitGTK+ from now on is great because it means you will be able to render visually stunning web content in your browser of choice (epiphany, huh?), as well as enjoy more subtle improvements such as smoother animations or increased responsivenes while browsing. You can visit this post by my mate Martin for more details on this topic.

Anyway, all these are very nice words and all that, but sometimes it’s not that easy to properly understand just with words what exactly those things will actually mean for users, so I decided to spend some time today polishing a bit the videos I used as demos in my talk during GUADEC, and link them from here, so everyone can easily watch them now.

Hope you enjoy watching them as much as I did making them:

WebKitGTK+: WebGL and Accelerated Compositing

WebKit2GTK+: The UI and the Web process

WebKit2GTK+: The Plugin process

GUADEC, WebKit and bikes

Published / by mario

I'm going to GUADECIt seems this year GUADEC is going to be pretty close to my place and so I will surely attend, but this time I won’t go by plane but by bike, which since some months ago has become my main vehicle for moving around the beautiful city where I live in: A Coruña.

Also, besides hanging around the venue and trying to help as much as possible as the local I am, I’ll be talking about WebKitGTK+ in the afternoon on Thursday 26th, so feel free to come round the room if you feel curious about the current status of the whole thing and the current plans for the short and medium term, which are mostly focused around WebKit2 and the roadmap we’re already following.

You probably already read some news related to this coming from my mates in the Igalia WebKit team, (like the improvements in Accelerated Compositing or the migration of our handsome browser Epiphany to using WebKit2), yet I will try to deliver an interesting talk to y’all. I just hope I’ll be able to do it (but please forgive me if I don’t).

So that’s it. As usual, just feel free to talk me if you see me around if you want. I’ll basically be around the venue most of the time during GUADEC, and will attend a11y and WebKitGTK+ BoFs on the 30th and 31st, so I’d say it will be pretty easy to find me.