Language Selection

English French German Italian Portuguese Spanish

GNOME: Tracker 3.0, Sandboxing WebKitGTK Apps, DevConf.CZ 2020, GNOME's Mutter

Filed under
GNOME
  • API changes in Tracker 3.0

    Lots has happened in the 2 months since my last post, most notably the global coronavirus pandemic … in Spain we’re in week 3 of quarantine lockdown already and noone knows when it is going to end.

    Let’s take our mind off the pandemic and talk about Tracker 3.0. At the start of the year Carlos worked on some key API changes which are now merged. It’s a good opportunity to recap what’s really changing in the new version.

    I made the developer documentation for Tracker 3.0 available online. Thanks to GitLab, this can be updated every time we merge a change in Git. The documentation a work in progress and we appreciate if you can help us to improve it.

    The documentation contains a migration guide, but let’s have a broader look at some common use cases.

  • Sandboxing WebKitGTK Apps

    When you connect to a Wi-Fi network, that network might block your access to the wider internet until you’ve signed into the network’s captive portal page. An untrusted network can disrupt your connection at any time by blocking secure requests and replacing the content of insecure requests with its login page. (Of course this can be done on wired networks as well, but in practice it mainly happens on Wi-Fi.) To detect a captive portal, NetworkManager sends a request to a special test address (e.g. http://fedoraproject.org/static/hotspot.txt) and checks to see whether it the content has been replaced. If so, GNOME Shell will open a little WebKitGTK browser window to display http://nmcheck.gnome.org, which, due to the captive portal, will be hijacked by your hotel or airport or whatever to display the portal login page.

  • DevConf.CZ 2020

    Once again, DevConf.CZ, is our meeting-while-freezing winter conference in Brno. For this year I cooked up two talks:

    An hour-long talk about Portals during the first day of the conference. The room was almost full and the questions were very relevant. A few attendees met me after the talk seeking help to make their apps start using Portals and with ideas for new Portals. You can watch the recordings below:

    On the last conference day, I had a quick twenty minutes talk about GNOME Boxes in the virtualization track. The audience wasn’t our known faces from the desktop talks, so I got the chance to show Boxes for the first time for a bunch of people. I did a quick presentation with live demos and Q&A. It was a success IMHO. Check the recordings below:

  • GNOME's Mutter Working On Variable Refresh Rate Support (VRR / Adaptive-Sync / FreeSync)

    Sway's Wayland compositor recently added Variable Refresh Rate / Adaptive-Sync support to help avoid tearing and stuttering while now GNOME's Mutter is working on similar VRR support on the desktop.

    A work-in-progress patch series was posted over the weekend for adding variable refresh rate support into Mutter for X.Org and Wayland. This includes checking for VRR support from connected monitors using the DRM properties, support for activating VRR, and the ability to toggle the VRR support via a DBus API. The VRR support isn't advertised to Wayland clients at the moment for the lack of an upstream Wayland protocol around VRR.

More in Tux Machines

Android Leftovers

10 Best Linux Font Tools (Updated 2020)

In the days when Linux was a fledgling operating system, font handling was often identified as a major weakness. It was true that Linux then had problems with dealing with TrueType fonts, its font subsystem was prehistoric compared to its competitors, there was a dearth of decent fonts, difficulties in adding and configuring fonts made it almost impossible for beginners to improve matters for themselves, and jagged fonts with no anti-aliasing just added to a rather amateurish looking desktop. Fortunately, the situation is considerably better these days, with a better quality of user interface typography. With the continuing improving FreeType font engine producing high quality output, natively supporting scalable font formats like TrueType, Linux is making great strides although there’s still some way to go. Dealing with fonts under Linux can sometimes be tricky. Read more

Leftovers: Programming, Benchmarks, CMS and Mozilla 'Telemetry'

  • 3 Top Node.js Package Managers for Linux

    Node.js is one of the most popular programming languages rocking the software development industry in the world over. While developing and using Node.js applications, one common software that developers and general users will always find themselves relying on is a package manager. A Node.js package manager interacts with online package repositories (that contain Node.js libraries, applications, and related packages) and helps in many ways including package installation and dependency management. Some package managers also feature project management components.

  • Intel oneAPI DPC++ Compiler 2020-05 Released

    Intel has released oneAPI DPC++ Compiler 2020-05 as their latest snapshot for the current state of their LLVM-based Data Parallel C++ Compiler. Data Parallel C++ is Intel's cross-architecture language for direct programming that is derived from C++. DPC++ leverages Khronos' SYCL and the LLVM Clang compiler infrastructure so that the generated code in conjunction with the DPC++ run-time can run on hardware from CPUs to GPUs, FPGAs, and other specialized accelerators.

  • Testing in Go: philosophy and tools

    The Go programming language comes with tools for writing and running tests: the standard library's testing package, and the go test command to run test suites. Like the language itself, Go's philosophy for writing tests is minimalist: use the lightweight testing package along with helper functions written in plain Go. The idea is that tests are just code, and since a Go developer already knows how to write Go using its abstractions and types, there's no need to learn a quirky domain-specific language for writing tests.

  • Learn at home #3: building resilience and problem solving skills
  • Marco Zehe: My Journey To Ghost

    As I wrote in my last post, this blog has moved from WordPress to Ghost recently. Ghost is a modern publishing platform that focuses on the essentials. Unlike WordPress, it doesn‘t try to be the one-stop solution for every possible use case. Instead, it is a CMS geared towards bloggers, writers, and publishers of free and premium content. In other words, people like me. :-) After a lot of research, some pros and cons soul searching, and some experimentation, last week I decided to go through with the migration. This blog is hosted with the Ghost Foundation‘s Ghost(Pro) offering. So not only do I get excellent hosting, but my monthly fee will also be a donation to the foundation and help future development. They also take care of updates for me and that everything runs smoothly. And through a worldwide CDN, the site is now super fast no matter where my visitors come from.

  • Kiwi TCMS 8.4

    We're happy to announce Kiwi TCMS version 8.4!

  • he Glean SDK and iOS Application Extensions, or A Tale of Two Sandboxes

    Recently, I had the pleasure of working with our wonderful iOS developers here at Mozilla in instrumenting Lockwise, one of our iOS applications, with the Glean SDK. At this point, I’ve already helped integrate it with several other applications, all of which went pretty smoothly, and Lockwise for iOS held true to that. It wasn’t until later, when unexpected things started happening, that I realized something was amiss… [...] Well, that wasn’t ideal, to say the least, so we began an investigation to determine what course of action we should (or could) take. We went back and forth over the details but ultimately we determined that the Glean SDK shouldn’t know about processes and that there wasn’t much we could do aside from blocking it from running in the extensions and documenting the fact that it was up to the Glean SDK-using application to ensure that metrics were only collected by the main process application. I was a bit sad that there wasn’t much we could do to make the user-experience better for Glean SDK consumers, but sometimes you just can’t predict the challenges you will face when implementing a truly cross-platform thing. I still hold out hope that a way will open up to make this easier, but the lesson I learned from all of this is that sometimes you can’t win but it’s important to stick to the design and do the best you can.

  • Phoronix Test Suite 9.8 Milestone 1 Readies Another Round Of Benchmarking Features

    This week marks 16 years since starting Phoronix.com and 12 years since the Phoronix Test Suite 1.0 release, so what better way to celebrate than a new development release of the Phoronix Test Suite.

Audiocasts/Shows: Ubuntu Podcast, Self-Hosted, TLLTS

  • Ubuntu Podcast from the UK LoCo: S13E11 – Inside out clothes

    This week we’ve been making podcasts and porting games to Scratch. We discuss Mint breaking Chromium, possible new features in Groovy Gorilla, GNOME defeating a patent troll, ZFS on Ubuntu, microk8s coming to Windows and macOS and Lenovo shipping Ubuntu or more laptops and workstations. We also round up some of our favourite stories from the tech world.

  • One is None | Self-Hosted 20

    You're not a true self-hoster until you've lost your entire configuration at least once. Alex does a deep dive into cloud backup, plus we need your help to find the right Wifi solution for a listener.

  • The Linux Link Tech Show Episode 860

    a walk down memory lane, games, toys, hardware