Canonical Voices

Posts tagged with 'upstream'

Michael Hall

Screenshot from 2014-03-20 21:57:06Yesterday we made a big step towards developing a native email client for Ubuntu, which uses the Ubuntu UI Toolkit and will converge between between phones, tablets and the desktop from the start.

We’re not starting from scratch though, we’re building on top of the incredible work done in the Trojitá project.  Trojitá provides a fast, light email client built with Qt, which made it ideal for using with Ubuntu. And yesterday, the first of that work was accepted into upstream, you can now build an Ubuntu Components front end to Trojitá.

None of this would have been possible without the help up Trojitá’s upstream developer Jan Kundrát, who patiently helped me learn the codebase, and also the basics of CMake and Git so that I could make this first contribution. It also wouldn’t have been possible without the existing work by Ken VanDine and Joseph Mills, who both worked on the build configuration and some initial QML code that I used. Thanks also to Dan Chapman for working together with me to get this contribution into shape and accepted upstream.

This is just the start, now comes the hard work of actually building the new UI with the Ubuntu UI Toolkit.  Andrea Del Sarto has provided some fantastic UI mockups already which we can use as a start, but there’s still a need for a more detailed visual and UX design.  If you want to be part of that work, I’ve documented how to get the code and how to contribute on the EmailClient wiki.  You can also join the next IRC meeting at 1400 UTC today in #ubuntu-touch-meeting on Freenode.

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Michael Hall

Today I reached another milestone in my open source journey: I got my first package uploaded into Debian’s archives.  I’ve managed to get packages uploaded into Ubuntu before, and I’ve attempted to get one into Debian, but this is the first time I’ve actually gotten a contribution in that would benefit Debian users.

I couldn’t have done with without the the help and mentorship of Paul Tagliamonte, but I was also helped by a number of others in the Debian community, so a big thank you to everybody who answered my questions and walked me through getting setup with things like Alioth and re-learning how to use SVN.

One last bit of fun, I was invited to join the Linux Unplugged podcast today to talk about yesterday’s post, you can listen it it (and watch IRC comments scroll by) here: http://www.jupiterbroadcasting.com/51842/neckbeard-entitlement-factor-lup-28/

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Michael Hall

Today was a distracting day for me.  My homeowner’s insurance is requiring that I get my house re-roofed[1], so I’ve had contractors coming and going all day to give me estimates. Beyond just the cost, we’ve been checking on state licensing, insurance, etc.  I’ve been most shocked at the differences in the level of professionalism from them, you can really tell the ones for whom it is a business, and not just a job.

But I still managed to get some work done today.  After a call with Francis Ginther about the API website importers, we should soon be getting regular updates to the current API docs as soon as their source branch is updated.  I will of course make a big announcement when that happens

I didn’t have much time to work on my Debian contributions today, though I did join the DPMT (Debian Python Modules Team) so that I could upload my new python-model-mommy package with the DPMT as the Maintainer, rather than trying to maintain this package on my own.  Big thanks to Paul Tagliamonte for walking me through all of these steps while I learn.

I’m now into my second week of UbBloPoMo posts, with 8 posts so far.  This is the point where the obligation of posting every day starts to overtake the excitement of it, but I’m going to persevere and try to make it to the end of the month.  I would love to hear what you readers, especially those coming from Planet Ubuntu, think of this effort.

[1] Re-roofing, for those who don’t know, involves removing and replacing the shingles and water-proofing paper, but leaving the plywood itself.  In my case, they’re also going to have to re-nail all of the plywood to the rafters and some other things to bring it up to date with new building codes.  Can’t be too safe in hurricane-prone Florida.

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Michael Hall

Quick overview post today, because it’s late and I don’t have anything particular to talk about today.

First of all, the next vUDS was announced today, we’re a bit late in starting it off but we wanted to have another one early enough to still be useful to the Trusty release cycle.  Read the linked mailinglist post for details about where to find the schedule and how to propose sessions.

I pushed another update to the API website today that does a better job balancing the 2-column view of namespaces and fixes the sub-nav text to match the WordPress side of things. This was the first deployment in a while to go off without a problem, thanks to  having a new staging environment created last time.  I’m hoping my deployment problems on this are now far behind me.

I took a task during my weekly Core Apps update call to look more into the Terminal app’s problem with enter and backspace keys, so I may be pinging some of you in the coming week about it to get some help.  You have been warned.

Finally, I decided a few weeks ago to spread out my after-hours community a activity beyond Ubuntu, and I’ve settled on the Debian new maintainers Django website as somewhere I can easily start.  I’ve got a git repo where I’m starting writing the first unit tests for that website, and as part of that I’m also working on Debian packaging for the Python model-mommy library which we use extensively in Ubuntu’s Django website. I’m having to learn (or learn more) Debian packaging, Git workflows and Debian’s processes and community, all of which are going to be good for me, and I’m looking forward to the challenge.

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pitti

umockdev 0.3 introduced the notion of an “umockdev script”, i. e. recording the read()s and write()s that happen on a device node such as ttyUSB0. With that one can successfully run ModemManager in an umockdev testbed to pretend that one has e. g. an USB 3G stick.

However, this didn’t yet apply to the Ubuntu phone stack, where ofonod talks to Android’s “rild” (Radio Interface Layer Daemon) through the Unix socket /dev/socket/rild. Thus over the last days I worked on extending umockdev’s script recording and replaying to Unix sockets as well (which behave quite different and quite a bit more complex than ordinary files and character devices). This is released in 0.4, however you should actually get 0.4.1 if you want to package it.

So you now can make a script from ofonod how it makes a phone call (or other telephony action) through rild, and later replay that in an umockdev testbed without having to have a SIM card, or even a phone. This should help with reproducing and testing bugs like ofonod goes crazy when roaming: It’s enough to record the communication for a person who is in a situation to reproduce the bug, then a developer can study what’s going wrong independent of harware and mobile networks.

How does it work? If you have used umockdev before, the pattern should be clear now: Start ofonod under umockdev-record and tell it to record the communication on /dev/socket/rild:

  sudo pkill ofonod; sudo umockdev-record -s /dev/socket/rild=phonecall.script -- ofonod -n -d

Now launch the phone app and make a call, send a SMS, or anything else you want to replay later. Press Control-C when you are done. After that you can run ofonod in a testbed with the mocked rild:

  sudo pkill ofonod; sudo umockdev-run -u /dev/socket/rild=phonecall.script -- ofonod -n -d

Note the new --unix-stream/-u option which will create /tmp/umockdev.XXXXXX/dev/socket/rild, attach some server threads to accept client connections, and replay the script on each connection.

But wait, that fails with some

   ERROR **: ScriptRunner op_write[/dev/socket/rild]: data mismatch; got block '...', expected block '...'

error! Apparently ofono’s messages are not 100% predictable/reproducible, I guess there are some time stamps or bits of uninitialized memory involved. Normally umockdev requires that the program under test sticks to the previously recorded write() parts of the script, to ensure that the echoed read()s stay in sync and everything works as expected. But for cases like these were some fuzz is expected, umockdev 0.4 introduces setting a “fuzz percentage” in scripts. To allow 5% byte value mismatches, i. e. in a block of n bytes there can be n*0.05 bytes which are different than the script, you’d put a line

  f 5 -

before the ‘w’ block that will get jitter, or just put it at the top of the file to allow it for all messages. Please see the script format documentation for details.

After doing that, ofonod works, and you can do the exact same operations that you recorded, with e. g. the phone app. Doing other operations will fail, of course.

As always, umockdev-run -u is of course just a CLI convenience wrapper around the umockdev API. If you want to do the replay in a C test suite, you can call

   umockdev_testbed_load_socket_script(testbed, "/dev/socket/rild",
                                       SOCK_STREAM, "path/to/phonecall.script", &error);

or the equivalent in Python or Vala, as usual.

If you are an Ubuntu phone developer and want to use this, please don’t hesitate to talk to me. This is all in saucy now, so on the Ubuntu phone it’s a mere “sudo apt-get install umockdev” away.

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Michael Hall

It’s day 5 of the Ubuntu Core Apps Hack Days!  We’ve seen a tremendous amount of work coming into the Core Apps, and have several new contributors joining the initiative.  We’re keeping that momentum going throughout the week in #ubuntu-app-devel on Freenode from 9am to 9pm UTC, so come and be a part of this exciting project.

Today we’ll turn our attention to the Weather application, another one of the original Core Apps, and another one that is already largely complete.  The Weather app gained multi-city support and a long range forecast early on, and has more recently added the ability to toggle between Celsius and Fahrenheit temperature displays.  Between those, it met all of the criteria we set for dogfooding:

  • Choose a location to view weather from. DONE!
  • View current weather conditions. DONE!
  • View a 10 day forecast. DONE!
  • Configure C or F and display that chosen setting for all locations. DONE!

Since the features are complete, we now need to put the rest of our effort towards polish and quality.  This means we need those of you with QML and Javascript knowledge to help fix the reported bugs in Launchpad, and those of you with Python knowledge to help us finish the Autopilot test coverage, so that we can make this app rock solid and reliable for every day use.

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pitti

While GNOME as a whole does not have a planned 3.8.3 release, I got some requests to do a new stable release of PyGObject with some important bug fixes, so here it is: version 3.8.3. Thanks to all contributors!

  • Add marshalling of GI_TYPE_TAG_VOID held in a GValue to int. While not particularly useful this allows some callbacks in WebKit to function without causing a segfault. (Simon Feltman) (#694233)
  • pygtkcompat: Fix for missing methods on Windows (Martin Pitt) (#702787)
  • gi/pygi-info.c: Avoid C99-style variable declaration (Chun-wei Fan) (#702786)
  • Clear return value of closures to zero when an exception occures (Simon Feltman) (#702552)
  • Re-add support for passing GValue’s by reference (Simon Feltman) (#701058)
  • Don’t use doctest syntax in docstrings for examples, to fix test failures with pyflakes 0.7.x (Martin Pitt) (#701009)
  • examples/option.py: Port to GI and Python 3 (Martin Pitt)

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pitti

I released umockdev 0.2.6. Most importantly, this now fully works on ARM platforms, as we want to use it to write tests for/on the Ubuntu phone. I tested it on my Nexus 7, and the tests also succeed on the ARM Ubuntu builder (which are Panda boards). Fixing this revealed some interesting issues in recorded ioctl traces (as they are platform specific in some cases due to different word length) as well as kernel bugs in the Tegra drivers.

This version also fixes compatibility with older automake versions again, so that the daily builds for raring should work again.

I also have a new gvfs test case ready to commit which uses umockdev (if available) to test functionality of the gphoto backend. But that needs the new UMockdevTestbed.clear() API in 0.2.6, so I was holding that back. I will land it soon in upstream git now.

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pitti

Time for the first PyGObject release for GNOME 3.9.x! This release brings the performance optimizations (thanks to Daniel Drake), quite a lot of internal code cleanup, and various bug fixes.

Thanks to all contributors!

  • gtk-demo: Wrap description strings at 80 characters (Simon Feltman) (#698547)
  • gtk-demo: Use textwrap to reformat description for Gtk.TextView (Simon Feltman) (#698547)
  • gtk-demo: Use GtkSource.View for showing source code (Simon Feltman) (#698547)
  • Use correct class for GtkEditable’s get_selection_bounds() function (Mike Ruprecht) (#699096)
  • Test results of g_base_info_get_name for NULL (Simon Feltman) (#698829)
  • Remove g_type_init conditional call (Jose Rostagno) (#698763)
  • Update deps versions also in README (Jose Rostagno) (#698763)
  • Drop compat code for old python version (Jose Rostagno) (#698763)
  • Remove duplicate call to _gi.Repository.require() (Niklas Koep) (#698797)
  • Add ObjectInfo.get_class_struct() (Johan Dahlin) (#685218)
  • Change interpretation of NULL pointer field from None to 0 (Simon Feltman) (#698366)
  • Do not build tests until needed (Sobhan Mohammadpour) (#698444)
  • pygi-convert: Support toolbar styles (Kai Willadsen) (#698477)
  • pygi-convert: Support new-style constructors for Gio.File (Kai Willadsen) (#698477)
  • pygi-convert: Add some support for recent manager constructs (Kai Willadsen) (#698477)
  • pygi-convert: Check for double quote in require statement (Kai Willadsen) (#698477)
  • pygi-convert: Don’t transform arbitrary keysym imports (Kai Willadsen) (#698477)
  • Remove Python keyword escapement in Repository.find_by_name (Simon Feltman) (#697363)
  • Optimize signal lookup in gi repository (Daniel Drake) (#696143)
  • Optimize connection of Python-implemented signals (Daniel Drake) (#696143)
  • Consolidate signal connection code (Daniel Drake) (#696143)
  • Fix setting of struct property values (Daniel Drake)
  • Optimize property get/set when using GObject.props (Daniel Drake) (#696143)
  • configure.ac: Fix PYTHON_SO with Python3.3 (Christoph Reiter) (#696646)
  • Simplify registration of custom types (Daniel Drake) (#696143)
  • pygi-convert.sh: Add GStreamer rules (Christoph Reiter) (#697951)
  • pygi-convert: Add rule for TreeModelFlags (Jussi Kukkonen)
  • Unify interface struct to Python GI marshaling code (Simon Feltman) (#693405)
  • Unify Python interface struct to GI marshaling code (Simon Feltman) (#693405)
  • Unify Python float and double to GI marshaling code (Simon Feltman) (#693405)
  • Unify filename to Python GI marshaling code (Simon Feltman) (#693405)
  • Unify utf8 to Python GI marshaling code (Simon Feltman) (#693405)
  • Unify unichar to Python GI marshaling code (Simon Feltman) (#693405)
  • Unify Python unicode to filename GI marshaling code (Simon Feltman) (#693405)
  • Unify Python unicode to utf8 GI marshaling code (Simon Feltman) (#693405)
  • Unify Python unicode to unichar GI marshaling code (Simon Feltman) (#693405)
  • Fix enum and flags marshaling type assumptions (Simon Feltman)
  • Make AM_CHECK_PYTHON_LIBS not depend on AM_CHECK_PYTHON_HEADERS (Christoph Reiter) (#696648)
  • Use distutils.sysconfig to retrieve the python include path. (Christoph Reiter) (#696648)
  • Use g_strdup() consistently (Martin Pitt) (#696650)
  • Support PEP 3149 (ABI version tagged .so files) (Christoph Reiter) (#696646)
  • Fix stack corruption due to incorrect format for argument parser (Simon Feltman) (#696892)
  • Deprecate GLib and GObject threads_init (Simon Feltman) (#686914)
  • Drop support for Python 2.6 (Martin Pitt)
  • Remove static PollFD bindings (Martin Pitt) (#686795)
  • Drop test skipping due to too old g-i (Martin Pitt)
  • Bump glib and g-i dependencies (Martin Pitt)

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Michael Hall

Back again for one more article on developing an Ubuntu SDK app.  This one might be short,  but it covers one of the cooler bits of magic that QML gives you: Transitions.  But first, be sure to read the previous articles in this series!

Transitions

It used to be that if you wanted to animate parts of your app, you had to setup timers, calculate distances and speeds, program each step along the way, and do it all without killing the user’s CPU.  Sure it could be done, it was done, but it wasn’t easy.  QML is different, QML Transitions aren’t something you have to bolt on yourself, they’re built in at the foundation.

A Transition is defined as a collection of Animation components that can change different properties in different ways, triggered automatically by a change in a component’s state or other properties.  All you, the developer, needs to do is tell QML what you want to change, and how.

ListView Event Transitions

QML offers a variety of ways to define transitions, depending on what you need.  All Items have a transitions  property, which takes a list of Transition instances that will be called whenever the Item’s state property is changed.  You can also define a Transition for any property change using the “Behavior on <property> {}” syntax, which creates a Transition for changes on the named property.

But for me, it was a third item that fit best.  QML’s ListView component has several properties that take a Transition instance, properties such as add and remove, which correspond to an item being added or removed from the ListView.  These transitions are then applied to the delegate ListItem component when it is being added or removed.  I used these properties to make the items slide in and out of view when changing subreddit, or moving from one page to another.

    ListView {
        id: articleList
        ...
        add: Transition {
            id: addAnimation
            property bool forward: true
            SequentialAnimation {
                NumberAnimation { properties: "x"; from: addAnimation.forward ? articleList.width : -articleList.width; to: 0; duration: 300 }
            }

        }
        remove: Transition {
            id: removeAnimation
            property bool forward: true
            SequentialAnimation {
                NumberAnimation { properties: "x"; from: 0; to: removeAnimation.forward ? -articleList.width : articleList.width; duration: 300 }
            }
        }
    }

At first I just had transitions going in one direction, but I wanted to give some implicit meaning to them, going one direction for “more results” and another for “new results” (reload, change subreddit, etc).  That’s why I added the extra forward property, which is used to determine the direction of the transition.

You can see it in action in this video:

Next Time: Who knows?

This is the last revision currently in my bzr branch.  I have some other code in the works, for Sharing using the new Friends service, and HUD integration.  But for one reason or another, neither is working quite the way I want it yet, and they haven’t been committed to my branch yet.  There were typically several days between revisions when I was developing uReadIt, and I’ve been blogging about it nearly every day since my first post.  Once I have some time to hack on uReadIt some more, I will have more to write about, so stay tuned!

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Michael Hall

I’ve blogged three times now, here, here and here, highlighting some of the apps being written with the Ubuntu SDK.  Well after covering 44 of them, and more already popping up since yesterday’s article, we’ve decided that we need to start getting these into the Ubuntu Touch Preview images so that people can try them out on supported devices, give the developers real-use feedback and bug reports, and generally promote the amazing work being done by our community of app developers.

The Collection

So Alan Pope (popey) and I have kicked off what we’re calling the App Collection, which are apps being developed outside of the scope of our Core Apps project, but that we still want to support, promote, and  guide through the process of getting them ready for deployment to Ubuntu devices.  This means we’re going to commit to helping developers get their apps packaged, and we’re going to be uploading them to a new PPA specifically for these apps.

The Apps

We’re starting out by collecting a list of known apps, with information about where to find their source code, the status of packaging for the app, and finally whether they are available in the PPA or not.  I seeded the list with the apps I’ve been blogging about, but it’s open to anybody who has an app, or knows about an app, to add it to this list.

Apps should be in a usable state before adding them to the list, and should perform a function that might be of interest to a user or tester.  Hello World apps are great for learning, but it’s not really something that you want to promote to users.

Packaging

You don’t have to know about Debian packaging to get your app in our PPA, we’re going to help you bootstrap and debug your package.  Our goal is to provide the minimal amount of packaging necessary for your app to be installable, on the desktop or on devices, and work properly.  Of course, if you can provide packaging for your app, that will greatly speed up the process of getting it into the PPA.

We would also welcome any help from packagers. Even if you don’t have an app of your own, you can help support the app developer community by spending some time getting their packaging in order.  QML apps are relatively simple when it comes to packaging, so a seasoned packaging veteran could probably knock one out in a matter of minutes.

PPA Review

You won’t have to conform to all of the requirements that you will to get into the Ubuntu archives, and there won’t be a lengthy review process.  The Apps Collection is offered up for users to evaluate and test Ubuntu Touch and apps written for it, there is no guarantee of stability or security.  Generally if it installs and runs, we’ll include it in the PPA.  But we’re not crazy, and we won’t be uploading apps that are obviously malware or detrimental to the user or platform.

Preview Image Review

Your app will need to go through a more intense review before being approved to go into the default install of the Ubuntu Touch Preview.  You code will be inspected by the engineers responsible for the preview images, to make sure it won’t cause any problems with stability or security that would interfere with the primary goal of the preview images, which is showing off the incredible user experience that Ubuntu provides on touch devices.

Inclusion

Once it’s ready, your app will join the default apps being developed by Canonical, as well as Core Apps being developed by other members of the community in collaboration with Canonical project managers, as part of the demonstration platform for Ubuntu Touch.

This is a great opportunity for you, as a developer, to get your app in the hands of a large number of early adopters.  It’s also a great opportunity for us, being able to promote off our platform and how it is being used by the app developer community.

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Michael Hall

The excitement around the Ubuntu SDK and application development is still going strong, both on the Ubuntu Touch Core Apps side and with independent developers. So strong, in fact, that it’s time for another round of updates and spotlights on the work being done.

Core Apps in the Touch Preview

Some big news on the Core Apps side is that they are now being reviewed for inclusion in the daily Ubuntu Touch Preview images being developed by Canonical for the Nexus family of devices, and by community porters to a growing number of others.

Now that all of the Core Apps are being regularly built and packaged in the Core Apps PPA, they can be easily installed on desktops or devices.  And, after being reviewed by the team building the Ubuntu Touch Preview images, three of them have been selected to be part of the default installed application set. So please join me in congratulating the developers who work to them.

For the Calendar, Frank MertensKunal Parmar and Mario Boikov have done a fantastic job implementing the unique design interactions that were defined by Canonical’s design team.  For the Calculator, Dalius DobravolskasRiccardo Ferrazzo and Riccardo Padovani were able to quickly build something that is not only functional, but offers unique features that set it apart from other standard calculators.  Finally, the Clock app, where Juha Ristolainen, Nick Leppänen LarssonNekhelesh Ramananthan and Alessandro Pozzi have put together a visually stunning, multi-faceted application that I just can’t get enough of.

New Independent App Development

In addition to the work happening on the Core Apps, there has been a continuous development by independent app developers on their own projects.

LoadShedding

Load shedding (or rolling blackouts) are a way for electricity utilities to avoid being overloaded by energy demands at peak times.  This an be an inconvenience, to say the least, especially if you don’t know it’s coming.  Maybe that’s why developer razor created this LoadShedding schedule app.

Multi-Convert

Multi-Convert was originally an Android application, written in HTML5, that is now being ported to Ubuntu.  Multi-Convert allows real-time conversion of weight, length, area, volume and temperature between different standard units.

 TV Remotes

I ran across not one, but two different apps for the remote control of home-theater-PCs, bringing the promise of your mobile phone as a “second screen” to Ubuntu Touch.

First is Joseph Mills (who also created a Weather app featured in the first of these roundups), with a remote control for MythTV:

And if you’re an XBMC user instead, not to worry, because Michael Zanetti has you covered with his remote control for XBMC:

CatchPodder

If you use your mobile device for listening to podcasts, you’ll be pleased to find the nice and functional podcast manager CatchPodder, which lets you subscribe to multiple feeds as well as playing files directly from the server.

AudioBook Reader

Keeping with the theme of listening to people talk on your Ubuntu device, we have an AudioBook manager and player that is being written with the Ubuntu SDK, which lets you load books, display cover images, and more.

Bits

If you’re a software developer, sysadmin or network engineer, there’s a good chance you’ve had to convert numbers between decimal, hexadecimal and binary.  This makes Bits a very handy utility app to keep in your pocket.

Periodic Table

From the same developer who created a Software Center front-end and Pivotal Tracker (both featured in previous posts) has a new project underway, an element browser that gives you loads of detailed information about everything on the periodic table.

WebMap

Canonical engineering Manager Pat McGowan has gotten into the fun too, building an app for displaying web-based maps from a number of providers.

GetMeWheels

For Car2Go customers looking to rent or return a vehicle, GetMeWheels lets you easily find the nearest locations to you.  Created by the same developer as the XBMC remote, this app was originally developed for Maemo/Meego, but is now being ported to the Ubuntu SDK.

PlayMee

A third app from the developer of GetMeWheels and XBMC Remote is PlayMee, a local music player that again was originally developed for Maemo/Meego, and is being ported to the Ubuntu SDK.

Tic-Tac-Toe

Tic-Tac-Toe is not a fancy game, but this one developed by Hairo Carela makes beautiful use of animation and colors, and even keeps a nice score history.

LightOff

If games are you thing, you should also check out LightOff, a simple yet challenging game where the object is to turn off all of the lights, but clicking one toggles the state of every square around it.

 

That’s all for now, keep those apps coming and be sure to post them in the Ubuntu App Developers community on Google+

 

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pitti

Paul Wise poked me this morning about uploading fatrace (“file access trace”, see the original announcement for details) to Debian, thanks for the reminder!

So I filed an Intent To Package, and will upload it in a few days, unless some discussion evolves.

I also took the opportunity to do some modernization: The power-usage-report script now uses the current PowerTop 2.x instead of the old 1.13, uses Python 3 now, and includes the “process device activity” in the report. I released this as 0.5. The actual fatrace binary didn’t change its behaviour, it just got some code optimizations; thanks to Yann Droneaud for those.

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Michael Hall

If you missed it, I posted an earlier round of SDK apps a couple weeks ago.  Well the pace of new app development didn’t slow down, so here I am again with another round of apps being written with what is still an alpha version of the Ubuntu SDK.

Core Apps Update

First an update on the Ubuntu Touch Core Apps project.  I highlighted a few of these already in my last post, but in the past week those apps have received several updates, and others have had the initial features start to land as well.

Calculator

In addition to being able to scroll back through previous calculations, the Calculator App developers have now added the ability to start a new calculation by dragging up and “tearing off” the current one, moving it into the history for later browsing.

Clock

The Clock app has been given a slight visual update on the main screen, and all new stop watch functionality too!

Calendar

The Calendar App now shows events for the day, and will take over the full screen to let you easily view your busy schedule.

Weather

The weather app too has added some visual features, and with the detailed design workflows just released, you can expect to see major changes coming to this app soon.

RSS Reader

The RSS Reader got off to a good start this week, allowing you to add feeds and read articles, either all aggregated together or one feed at a time.


File Manager

Finally, the File Manager is now working enough to let you browse through files and folders, and even open files in the appropriate application

Independent Apps

A man of many talents

Developer Ashley Johnson has been working on a couple of new apps using the Ubuntu SDK.  His first was a touch-friendly version of the Ubuntu Software Center:

Click for video

Followed up earlier this week with an Ubuntu Touch client for the Pivotal Tracker project management web service:

Click for video

Ubuntu Loves Reddit

We must, because there is not one, not two, but three separate Reddit apps being written with the Ubuntu SDK.

By Victor Thompson

By Bram Geelen

By yours truly

Ultimate Time Waster

Even Canonical’s VP of Engineering, Rick Spencer, has gotten in on the fun.  Though his app, which gathers funny pictures from across the internet for easy browsing, it’s as productivity-focuses as you might expect.

Dawning of the age of Aquarius

Canonical’s Stuart Langridge (aquarius on IRC, for those who don’t get the reference) is our resident audio-phile, which might explain why he’s written two music apps with the Ubuntu SDK, one for Ext.fm and another for Ubuntu One’s Music Streaming service.

Zeegaree

Developer Micha? Pr?dotka is porting his desktop timer app Zeegaree to the Ubuntu SDK

GPS Workout tracker

Fitness trackers are becoming more and more popular, especially as mobile apps.  Ready to meet this demand is Marin Bareta and his workout tracker for Ubuntu Touch

uQQ

QQ, the popular instant messaging service out of China, is getting it’s own native uQQ Ubuntu SDK client thanks to developer ? ? (shared to me by Szymon Waliczek)

Resistor Color Codes

I’m not electrical engineer, so I don’t know exactly what this does, but if you do I bet it would be handy to have available in your pocket, so thank Oliver Marks for making it.

Stock Tracker

Last but not least, I just saw this stock price tracker from Robert Steckroth

 

If you are writing an Ubuntu SDK app, or have come across one that I haven’t blogged about yet, be sure to drop me an email or ping me on IRC.  I get the feeling this isn’t the last SDK Apps update I’ll be posting.

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pitti

I just released a new PyGObject for GNOME 3.7.92. This fixes a couple of crashes and marshalling errors again, but most importantly got a change to automatically mute the PyGIDeprecationWarnings for stable versions. Please run pythonX.X with the -Wd option to still be able to see them.

We got through all our bugs that were milestoned for GNOME 3.8 and don’t want to or plan to introduce any major behavioural change at this point, so barring catastrophes this is what will be in GNOME 3.8.0.

Thanks to all contributors!

  • Fix stack smasher when marshaling enums as a vfunc return value (Simon Feltman) (#637832)
  • Change base class of PyGIDeprecationWarning based on minor version (Simon Feltman) (#696011)
  • autogen.sh: Source gnome-autogen to fix out of source builddir (Alban Browaeys) (#694889)
  • pygtkcompat: Make gdk.Window.get_geometry return tuple of 5 (Simon Feltman)
  • pygtkcompat: Initialize hint to zero in set_geometry_hints (Simon Feltman)
  • Remove incorrect bounds check with property helper flags (Simon Feltman)
  • Fix crash when setting property of type object to an incorrect type (Simon Feltman) (#695420)
  • Remove skipping of object property tests (Simon Feltman) (#695420)
  • Give more informative error when setting property to incorrect type (Simon Feltman) (#695420)

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pitti

I just found out that PyGObject 3.7.91 as released yesterday breaks GEdit plugins. I just pushed out 3.7.91.1 to unbreak this again, sorry about that!

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pitti

I just released a new PyGObject for GNOME 3.7.91. This brings some marshalling fixes, plugs tons of memory leaks, and now raises a Python DeprecationWarning when your code calls a method which is marked as deprecated in the typelib. Please note that Python hides them by default, so if you are interested in those you need to run python with the -Wd option.

Thanks to all contributors!

  • Fix many memory leaks (#675726, #693402, #691501, #510511, #672224, and several more which are detected by our test suite) (Martin Pitt)
  • Dot not clobber original Gdk/Gtk functions with overrides (Martin Pitt) (#686835)
  • Optimize GValue.get/set_value by setting GValue.g_type to a local (Simon Feltman) (#694857)
  • Run tests with G_SLICE=debug_blocks (Martin Pitt) (#691501)
  • Add override helper for stripping boolean returns (Martin Pitt) (#694431)
  • Drop obsolete pygobject_register_sinkfunc() declaration (Martin Pitt) (#639849)
  • Fix marshalling of C arrays with explicit length in signal arguments (Martin Pitt) (#662241)
  • Fix signedness, overflow checking, and 32 bit overflow of GFlags (Martin Pitt) (#693121)
  • gi/pygi-marshal-from-py.c: Fix build on Visual C++ (Chun-wei Fan) (#692856)
  • Raise DeprecationWarning on deprecated callables (Martin Pitt) (#665084)
  • pygtkcompat: Add Widget.window, scroll_to_mark, and window methods (Simon Feltman) (#694067)
  • pygtkcompat: Add Gtk.Window.set_geometry_hints which accepts keyword arguments (Simon Feltman) (#694067)
  • Ship pygobject.doap for autogen.sh (Martin Pitt) (#694591)
  • Fix crashes in various GObject signal handler functions (Simon Feltman) (#633927)
  • pygi-closure: Protect the GSList prepend with the GIL (Olivier Crête) (#684060)
  • generictreemodel: Fix bad default return type for get_column_type (Simon Feltman)

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pitti

Hot on the heels of yesterday’s big 0.2 release, I pushed out umockdev 0.2.1 with a couple of bug fixes:

  • umockdev-wrapper: Use exec to avoid keeping the shell process around and make killing the subprogram from outside work properly.
  • Fix building with automake 1.12, thanks Peter Hutterer.
  • Support opening several netlink sockets (i. e. udev monitors) at the same time.
  • Fix building with older kernels which don’t have the EVIOCGMTSLOTS ioctl yet.

This fixes the “bind: address already in use” errors that were popping up in X.org and upower when running under umockdev, and finally gets us working packages for Ubuntu 12.04 LTS (in the daily-builds PPA).

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pitti

I just released umockdev 0.2.

The big new feature of this release is support for evdev ioctls. I. e. you can now record what e. g. X.org is doing to touchpads, touch screens, etc.:

  $ umockdev-record /dev/input/event15 > /tmp/touchpad.umockdev
  # umockdev-record -i /tmp/touchpad.ioctl /dev/input/event15 -- Xorg -logfile /dev/null

and load that back into a testbed with X.org using the dummy driver:

  cat <<EOF > xorg-dummy.conf
  Section "Device"
        Identifier "test"
        Driver "dummy"
  EndSection
  EOF

  $ umockdev-run -l /tmp/touchpad.umockdev -i /dev/input/event15=/tmp/touchpad.ioctl -- \
       Xorg -config xorg-dummy.conf -logfile /tmp/X.log :5

Then e. g. DISPLAY=:5 xinput will recognize the simulated device. Note that Xvfb won’t work as that does not use udev for device discovery, but only adds the XTest virtual devices and nothing else, so you need to use the real X.org with the dummy driver to run this as a normal user.

This enables easier debugging of new kinds of input devices, as well as writing tests for handling multiple touchscreens/monitors, integration tests of Wacom devices, and so on.

This release now also works with older automakes and Vala 0.16, so that you can use this from Ubuntu 12.04 LTS. The daily PPA now also has packages for that.

Attention: This version does not work any more with recorded ioctl files from version 0.1.

More detailled list of changes:

  • umockdev-run: Fix running of child program to keep stdin.
  • preload: Fix resolution of “/dev” and “/sys”
  • ioctl_tree: Fix endless loop when the first encountered ioctl was unknown
  • preload: Support opening a /dev node multiple times for ioctl emulation (issue #3)
  • Fix parallel build (issue #2)
  • Support xz compressed ioctl files in umockdev_testbed_load_ioctl().
  • Add example umockdev and ioctl files for a gphoto camera and an MTP capable mobile phone.
  • Fix building with automake 1.11.3 and Vala 0.16.
  • Generalize ioctl recording and emulation for ioctls with simple structs, i. e. no pointer fields. This makes it much easier to add more ioctls in the future.
  • Store return values of ioctls in records, as they are not always 0 (like EVIOCGBIT)
  • Add support for ioctl ranges (like EVIOCGABS) and ioctls with variable length (like EVIOCGBIT).
  • Add all reading evdev ioctls, for recording and mocking input devices like touch pads, touch screens, or keyboards. (issue #1)

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pitti

I just released a new PyGObject for GNOME 3.7.90, with a nice set of bug fixes and some internal code cleanup. Thanks to all contributors!

  • overrides: Fix inconsistencies with drag and drop target list API (Simon Feltman) (#680640)
  • pygtkcompat: Add pygtk compatible GenericTreeModel implementation (Simon Feltman) (#682933)
  • overrides: Add support for iterables besides tuples for TreePath creation (Simon Feltman) (#682933)
  • Prefix __module__ attribute of function objects with gi.repository (Niklas Koep) (#693839)
  • configure.ac: only enable code coverage when available (Jonathan Ballet) (#693328)
  • Correctly set properties on object with statically defined properties (Jonathan Ballet) (#693618)
  • autogen.sh: Use gnome-autogen.sh (Martin Pitt) (#693328)
  • Fix reference leaks with transient floating objects (Simon Feltman) (#687522)

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