Category Archives: General

Applying transformations to your bugs

Today there was this presentation from Apple to talk about the famous iPhone4 antenna problem. I’ll represent this problem (bug) with the picture below made by one of INdT’s designers (Patricia Montenegro) some time ago:

The Bug - watch out the way it looks to you!

To be honest I wasn’t expecting anything “technical” in the sense that I wasn’t expecting a technical explanation to the problem itself (you can find it in numerous places on the web) or for a possible solution, but I wanted to watch how Jobs would deal with with the situation.

Being honest again, he did what he does best! At first, he acknowledged the problem as it couldn’t be denied. Then he said that actually they did a favor to the smartphone’s industry because there were other phones with the same problem (showed pictures of other phones having the same issue – what doesn’t prove much, but…) but instead of “hiding” the antenna and hiding the problem, they actually put a big “X” on the problem (see picture below).

iPhone4 antenna

From my point of view it was just what we would call a “n00b” mistake :). I mean, Apple is doing phones since not so many time ago. It’s their 4th device (iPhone, iPhone 3G, iPhone 3GS and iPhone4 now), and they just didn’t face this problem before and had the brilliant idea. The problem may show up on other phones? Sure, but I’m sure that the other manufacturers know about the problem and try to “fix” it, being that hiding the antenna inside the case or whatever.

The next steps were just the table’s “turn over” (not sure if this expression exists in English, but it works pretty well in Portuguese :P): some (small) numbers about the how many people were actually affected by the bug. It was less than 1 in a 100 users (a beautiful way of saying less than 1% hehe). They get these numbers from the people that actually complained at Apple Care about the issue so those out there that just reading Engadget and Gizmodo about the issue were not counted of course.

But besides the number being so small, Apple does care about it’s users. All of them. See the kind of words used here? This is the place to do the magic trick. This is the place where you say that you’re not evil or bad but you actually care. Just after stating that you human enough to make mistakes, you ensure your “human position” showing that you care about others. Genious! It’s a statement that just makes the others stronger ;).

In order to take care of those 1% Apple will give for free cases for the iPhones, what prevents the bug and users will even be able to choose colors! And if they do not want the case, then a refund is offered. In Brazil this would be something that they would need to do because of the law: if you sell something that doesn’t work, you need to refund. I’m not sure how this works out on US but anyway, he transformed the user’s “right” into a company’s “feature”. Points again for Apple and Jobs for playing nice with the words.

After that, it was just more slides about all the nice features of iPhone4, why you should have one and more and more statements that Apple loves it’s users (yes, the word love is used in all the slides).

Apple and Love

Summary: from the technical point of view it was just “we don’t have a way to fix this as this is a hardware problem and it’s a huge problem then.”. But saying so is the same as pushing the picture of our fellow bug in every user’s face.

Instead of doing that, they will solve the issue by giving the users a rubber case that costs less than 1 dollar and then create a link between the users and the company that is: “we are all humans. have you ever made a mistake? this is our first mistake. sorry. take this gift. ah, by the way we love you.”. This creates compassion (every human did something wrong once in his life) and then people stop bashing the company and it’s product. This “love history” also reinforces that they are humans, enabling them to screw things eventually. So with a few minutes, Jobs got our fellow and dressed him properly transforming The Bug in a Feature:

The feature - not so ugly anymore!

From my point of view, the truth is that Apple is a company with a product that costs you some money and just like any other company in any other industry, the products should be properly tested and should not have this kind of problems that are not solvable (what if they didn’t have the luck of the case solving the issue?). The good about open source products is that at least from the software side we can fix stuff as quick as possible. So please vendors: pay attention to the hardware you manufacture and leave them as open as possible to software that we want to put into that! 😀

KDE calls ‘home’

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Yep, I didn’t have time to blog during aKademy as you may have noticed 🙂 The main reason is that I had a lot of discussions and attended to a huge number of BoFs. This aKademy rocked just as the others that I went. Huge thanks to the organization team, KDE e.V and sponsors for providing ways to make this happen and to have a lot of KDE hackers there!

Instead of doing a technical blog today, I will just say that during this aKademy KDE ‘called home’ for the first time. This means that for the first time in history 🙂 we had KDE running on a mobile phone and we made a call with it! This was AWESOME! Just a summary: Plasma-Mobile and a plasmoid that worked as a dialer did the work, using the phone API of Maemo5 on a N900.

As Aaron noticed, our first call was a little bit more “interesting” than Graham Bell’s one. The first words on a telephone in history are:

Mr. Watson, come here. I want to see you.

Interesting…..but you may think that the transcription below is a little bit more interesting. I will also omit some context that would explain some of the questions/answers during this talk as I think that it may turn this more…let’s say…special 😉 Enjoy!

My phone rings (for the sake of curiosity, my ringtone is “Snow” by Red Hot Chili Peppers) and the ID of the caller is “+41”. I answer and the call drops. I tell Helio that it should be some company from Brazil during TeleMarketing. While we walk to the bus for aKademy’s day trip it rings again. Alexis Menard is the caller this time:

Me: Bonsoir! er, Bonjour Alexis!
Alexis: Guess what?!
Me: hhmm, you’re going to miss the dray trip because you just woke up?
Alexis: NO! Guess what ‘amiguinho’!? (note: ‘amiguinho’ means ‘little friend’ in portuguese)
Me: Oh, I got it! You’re the guy! Your bed is warmer than it should be?
Alexis: What?! No, no, no! Come on! GUESS WHAT?!
Me: I don’t know then! Let me think….ow yeah! GREAT! This phone call was made through the Plasma-Mobile stuff that we did yesterday?!
Alexis: Yes!! Finally!! I’m turning off my computer and meet you at the bus!
Me: OK! See you!

And then I tell everybody that was by my side that it was the first KDE phone call in history! REALLY GREAT! 🙂 The conversation above may seem non-sense but all the questions had a reason and the answers too 😛

Soon we should post some more technical bits about Plasma-Mobile and also I plan to talk a little bit about KDE-Pim-Mobile, the new Sharebin engine (that will support scripted plugins and GHNS) and if you want to contribute to some use cases of Plasma-Mobile take a look at this link.

As a kind of “sad note”, I would also like to tell you that the QEdje scriptengine was removed due (my) lack of maintenance of the QEdje project.

Finally some news….and more Akademy!

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I’ve been busy with some “internal work” that was not that fun and due to that, it was not worth it talking about it :(. However during this time I wrote some KDE stuff and right now I’m busy with some awesome work and this one I’ll share with everybody 🙂

During what I call “bad days” I focused on writing the new Plasma data engine for the pastebin services. Actually, I decided to call it “sharebin” as pastebin remembers about just one service and doesn’t mean too much for the end user, while “share” is a great word to describe what this engine actually does. Basically it will be plugin based and the plugins (backends for services) can be written using JavaScript.

The benefits? It’s easier to extend and support new services so no more bugs on bko asking for this or that service (you can *easily* implement it and provide it through kde-apps.org). Because of that, applets using the new data engine will be able to use GHNS to extend the amount of services that it uses.

As soon as we unfreeze trunk, I’ll send the engine for review and then update the pastebin applet to support it. Ah, we are also using KIO inside the data engine now! 🙂 So, we also have support for “remote shares” (remote as in getting a file that is in the network – samba share for example). Good news right?

Now, I started to help the KDE PIM dudes and KDAB with their mobile version of the suite and anything that is related to it. So, I’m really looking forward having a great PIM suite for mobile devices. It uses all of the KDE infrastructure and the brand new Qt technology for creating rich UI interfaces: QML. It’s important to say that everything is being done on the open and upstream. Take a look at kmail mobile right now:

At the same time I’ll be in touch with the guys working on the Qt Components project, to provide feedback and use the stuff they are getting done. This is a really important project for QML and if you ever played with QML you know what I’m talking about ;).

I’m also going to Akademy this year thanks to the help of the e.V. and it’s sponsors (special thanks to Claudia that helped me with the booking :P). I’ll have a talk there with my fellow Alexis Menard about Plasma mobile and I hope that everybody that will be there enjoy the talk and the paper that we are working on! I also recommend the talk about Qt Components from Eduardo Fleury! If you want to talk about KDE Mobile, any other mobile subject (MeeGo, Maemo), anything KDE related, just about soccer or say hello…just do it 😛 I’m too small to prevent you from doing any of the above listed things 😛

The Mobile Concept

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Reading this post you were able to watch a video about Plasma Mobile (actually, Plasma on all kind of devices) and see some screenshots. But if you don’t know the ideas and concepts behind that, you are just going to bash it as it’s just the bootstrap of the project and a lot needs to be done.

And if for some reason you are wondering about the future of the netbook project, don’t worry 🙂 Plasma Netbook and Plasma Mobile, besides being oriented for smaller form factors than a regular Desktop / Notebook, have different concepts as they’re serving for different purposes. Marco (notmart) and all the Plasma team will still keep working on the netbook shell and if you read this post you can see the netbook shell running on Intel’s Jax10 devices. This was done to give us an idea about how the netbook interface would behave on touchscreen devices and helped Marco to do a lot of bug fixing and improvements.

Back to the mobile shell, this interface presented here was created for the same Jax10 device but the architecture was designed to support different “Views” (as in MVC) for even smaller devices (N900 anyone?) , while still sharing the same concepts though. Even if the interface was not designed for the N900 for example, we were able to run it with great performance and the usability was very good. What means that we’ll just need to slightly tweak the view to make it perfect for the N900. And all of this can be done by designers as the View is 100% done in QML 🙂

So our first step was to brainstorm about launching menus (and how regular grid views seems to be so boring) and how different contexts affects the way you use your mobile. I mean, we are making desktops aware of contexts more and more and it’s silly to think that you don’t use this concept on your other devices.

We thought about having regular activities so the user would be able to have different set of plasmoids for each context that he’s working on. However it still needs to be very easy to do some stuff like:

Going to your dialer if it’s a phone;
Change between activities (later we can make the shell location aware so it’s possible to auto switch);
Launch applications easily and context aware (presenting the applications related to that context);

In order to achieve these goals we came with this idea: having a regular containment and a kind of panel that auto hides itself after some seconds. Important to say that right now this panel is 100% QML and is not like the desktop’s panel (that is a containment in another view). This makes the shell use less memory and be faster as it’s just playing with pixmaps in the end. After hiding, it shows a collapsed representation of the panel at the bottom that the user can either click on it or drag it up to show back the panel. This makes it really easy to change between one activity to another one while keeping the user interface clean enough so the user can play with his applets 😉

First Mockup by Nuno

The panel while in it's collapsed mode

But then you ask me: “I want to launch applications ? How can I do that ?”. One solution is to add an application launcher as one of the main activities and the other one is to enable context aware application launchers. So, looking at the pictures above think that you are at the “Internet Activity” and you want to launch your applications. You can always launch the application related to one plasmoid from it so if you have an RSS Feed plasmoid you are able to launch your feeds reader using this plasmoid. But if the applications doesn’t have a related applet, in our concept you can just flip horizontally the current activity and you’ll find on it’s backside a context aware launcher that have shortcut icons for your applications and it’s size is proportional to the times that you launched the application and how much related to that activity the application is. This way it’s easy to find the most important applications for that activity.

Activity flipping to show...

...the context aware application launcher that right now is just a gradient 😛

It’s not there right now but the idea is that at the top we will have this small bar (that will be a containment) to show the status related widgets like battery, signals strength and other stuff very plasma, like clocks! It’s not there yet, but it will be!

Regarding the transitions from one activity to another we thought about sliding the activities up and down so there is the idea that we are throwing the current activity somewhere else and bringing the new one.

Throwing away the current activity....

...bringing the new one and fading out the panel....

...and the switch is done!

\Basically this is the concept behind the Plasma Mobile shell and after this it was just a matter of thinking about nice animations that would make sense, tweaking it’s timers and polishing icons 🙂 It’s clear to us that during the development we’ll find flaws in this ideas and we will need to fix them, as well as that the implementation right now is a little bit dirty due to time constraints (Tokamak doesn’t last forever unfortunately). Next steps ? Fix all the ugly code, finish implementing the launch menu, polishing and bug fixing…what means that we just bootstrapped!

Ah, if you are wondering: the Plasma Netbook project still keeps up to speed and is not sharing this backend (besides sharing a lot from libplasma). The deal is that the Netbook really needs it’s own concept and implementation while Plasma Mobile is really meant to be used on smaller devices than netbooks 😉

Plasma Mobile before deploying

Plasma Mobile on Jax10

I would like to thanks all tokamakers for providing great ideas and also INdT’s designers that gave me great ideas along the last years that I could apply for this concept.

YATP: Yet Another Tokamak Post

…not so long after all

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After all the stuff that happened in my professional and personal life last month we can extract some technical bits 🙂

First of all, during Camp KDE it was awesome to talk to people like Jos, Celeste, Alexandra, Till, Leo and Jeff (and many others). It’s good to share your thoughts with many people that you just don’t have this big bandwith for chat that you have when you’re physically together 🙂

Our awesome dragons 😛

I spent last month studying and working with QML, trying to get the most of it and I think that I (and the team that I work with of course) reached a very good level of knowledge regarding the new Qt’s declarative language. We have some expertise with declarative languages for some time now (started with Edje three years ago) and went through QEdje and now we have a proper Qt solution for this that will probably be released with Qt 4.7.

QML is awesome. Big tip: just try to avoid “leaking” code from your c++ controllers and models and you’ll get any interface that your designers want for free :). We achieved very good results working with this architecture for software and I really recommend it for everybody (I’m not talking about this right now as it can be a whole paper – hmm, maybe a paper for next Akademy ? 😉 ).

Alexis showing QML mobile shell on N900

Ok, so after studying QML and talking a lot with Alexis and others (like Helio) we had great ideas to try out on mobile devices (read N900 here). Let’s see what we can do during tokamak 4. Good to read Aaron’s post about it and to know that he’s excited with this possibility too. I talked about this during my talk at Latinoware conference and right now we can expand and make “my dreams” come true. We have really good use cases for this and we should really focus on this at first. We need help from designers (Nuno and oxygen team?) and usability experts (Celeste, here I am again – I know you should hate me every time I say your name under this circumstances hehe :P). The design of this kind of product should be the first step after studying technologies.

Talking about KDE: for KDE 4.5 I’m really going to change the pastebin applet. Feature-wise it’s really in good shape but it’s not very healthy code-wise and we can really improve it and it’s data engines to something more user friendly and also that can be easily improved with the use of plugins (anybody thinking about service providers and GHNS ?). First of all, it’s not user friendly to call it “pastebin”. My mom have no clue what pastebin is. For sure she knows what “Share it” means and we can make use of KIPI plugins to allow it to export things to Flickr and other services too. So, for 4.5 expect some big improvements on the developer side of pastebin. From a user’s perspective it should just have a better config dialog, interface and will have support for much more services 🙂 (at least I hope so).

Just upgraded to trunk (KDE SC 4.5) and it already looks awesome: from the KDE theme to the new notification messages that Marco is working on. Amarok (as always) had (good) surprises for me and this “Photo” widget is awesome. It ties together the awesome experience of one of your senses (audition) to another sense (vision) and it’s awesome. Great pictures from my favorite artists and songs. Amarok++.

Amarok and new Photo Widget

Right now, I want to work on so many cool stuff and I just don’t have the time. Probably work is going to consume most of my time for the next 2 months but I’ll make it work and will help KDE to get even better and to start working on Maemo for example. Konquer the world!

Ah, as a simple tip: if you own an N900 just install the “Angry birds” game, it’s awesome hehe 🙂

going-to-tokamak4

A long time ago…

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Well, it has been a long time since my last post and a lot of stuff happened during that, specially regarding work and that explains a little bit why I was so “offline” last days (month).

It all started when I received my N900 from Maemo’s developer program that is just awesome as it gives the opportunity for developer to have access to the platform and keep developing for it. Comparing to other options: for some fruit company’s platform you have to pay to develop for a closed platform and for other you receive devices to develop to an open platform. Big kudos to Nokia for everything it’s doing with Maemo.

Regarding Maemo, I used my N900 in the last month on all business trips that I did and the vision of having contacts instead of accounts really made a difference. It was so easy to use Skype or my SIP provider (Inphonex) while I was out of the country that my mobile phone just worked as it should always work: as a personal extension of my home phone. Perfect.

So, the trips began with Camp KDE and I went to Los Angeles one week before the conference itself as I had some days to take as vacations. It was really great, from watching a live record of one of my favourite TV shows (Two and a Half men) to watching all the amazing talks during Camp KDE it was all great. I would like to also send some kudos to Camp KDE organizers. I know how hard it is to actually make an event like that happen.

The gate where the show was recorded

After Camp KDE I just had three days at home and then went to Oslo/Tampere for Qt work and it was really great to actually see snow for the second time. First time I’ve ever seen it snowing actually (the first time I needed to go up to a mountain last Tokamak hehe – thanks Marius for the chance!! it was awesome).

During this trips I had some ideas regarding mobile platforms and discussed a little bit of it during my talk at Camp KDE and also with Alexis Menard (former Troll). I think that for Tokamak 4 we’re going to have some nice ideas to work on for mobile platforms. It’s important to say that this is all at “pre-pre-pre-pre beginning stage” and that we have a lot of work to be done on the Netbook effort for example that Marco is taking care in an awesome way 🙂

Back to reality I have some work to be done and we are already setting things up for Bossa Conference. So I have Carnival, Tokamak 4 and Bossa Conference in a row. And still job to be done…well, I think I can handle that 😉

Bossa Conference

So, this is all that happened last month (trust me, a lot happened) and next post will be a little more technical or at least more KDE related and for sure I’ll have some more Maemo related posts in the (very) near future (specially after Tokamak 4).

going-to-tokamak4

Post Latinoware Post :)

User Experience with Different Devices

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It has been some time that I had some ideas regarding different devices. My first try was with the so famous “Mysterious Device” that we had during Tokamak 3 and later I played a little bit with my N85 and QtS60.

Qt Everywhere: yes, this means a lot of things. For Nokia it means that the same framework will be available for different platforms, for users that they will have more software being developed and for us, developers, that we can bring our software for all the devices that Qt is ported to.

Let’s also talk a little bit about platforms: Nokia has been playing with Maemo for some time now and the platform itself is pretty mature. Of course it will have problems but it’s pretty mature and compared to a lot of others out there it’s much better. But Maemo was “confined” to internet tablets…a device that was not good enough to be a netbook and not small enough to be a phone. It was “just” a pocket computer.

However the scenario changed and now we have a mobile phone running Maemo out there (N900) and Nokia learned the lesson about how to attract open source developers (just think that while Apple charge developers to get the full SDK and deploy their software, Nokia gives big discounts on new devices for developers).

I was pretty sad that I couldn’t go to Maemo Summit and show my ideas to everybody out there and it became worse when I saw that everybody there had their N900 and would be able to create awesome stuff for the device. This is one of the downsides of living in Brazil: it’s almost impossible to get/buy new hardwares without paying huge taxes and the developers program always helped on this matter. Too sad =/. BUT it seems that today was my lucky day! I (and some others) received a mail saying that we would receive a discount on an N900! Awesome! So now it will be possible to do all the stuff I was planning to do!

Plasma Netbook is one of my main objectives for the short/mid term (take a look here for the last news). It has a lot of potential and a lot of great ideas around it. We already received good reviews even in “less than alpha” state and we’re looking for companies that want to sell their stuff with something that will provide a unique user experience. If you are interested, contact us…we can explain our ideas and provide details about it. Also know we have Marco working full time on this, while I’m working full time on Qt and others are keeping plasma up to shape.

And probably you’re asking yourself why you should be interested in what I said above. The reason is just below. Take a look at the pictures and at the videos.

Shared Plasmoid on N900

I didn’t use Plasma netbook for this demo because I needed to recompile some stuff and it’s much better in a real netbook. This demo I’ll do during my talk on Latinoware. But for those that can’t go, I’ll talk a little bit: user experience is more than what the user does in front of his computer. It’s all about tasks. Recently, Rob integrated into KDE 4.4 his wonderful SoC called Remote Widgets. This enables two machines to share Plasma content in a very nice and easy way (I don’t even need to say that developers using libplasma get this feature for free, do I ?).

Original Plasmoid on Desktop (written using Javascript)

For me it was a pretty clear path to go. I want to share my widgets (that helps me during my day-to-day tasks) between different devices, so I can “take” them with me even if I leave my computer. This can be applied to many plasmoids and this is just a demo. I get a plasmoid that is in my desktop and share it with my mobile phone (in this case an N900 that a friend that went to Maemo Summit led me for this weekend). Pretty simple and easy to achieve (ok, it was hard to record the movie, talk and do all the stuff at the same time hehe). For security reasons it asks for pin codes between the two devices (just like bluetooth pairing – and you can have trusted devices too) and you can even save your passwords using KWallet :).

(if you can’t see the video above, try going here: http://www.youtube.com/watch?v=F1qxdYAUBbk)

Thanks to Mek and Darktears for sharing Qt/KDE compile problems in scratchbox, Vudentz for the device and Aaron and work mates for calming me down when I was compiling all the stuff 🙂 Any questions are welcome and remember that we can extend this a lot! (preempting one question: yes, it’s possible to share the “now playing” plasmoid and control your Amarok from the device 😉 ).

Cheers!

Small status update

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After Tokamak III I was not able to work that much on netbook stuff because we’re reaching the 4.6 release and we have a lot of work to be done on anchor layouts. We’re fixing the last bugs (that we know of course :P) so we can provide a really nice new layout for everybody using Qt. By the release of 4.6, Qt will be one step closer to make it easier to create rich UIs.

This week, Marco showed you how fast the netbook stuff is going on, it’s really awesome. It’s also very good to see how the netbook shell benefits from all the work being done on libplasma as well, like the integration with remote widgets. I had some nice ideas regarding integration with open Desktop stuff, let’s see if I can work on it during the weekend. I’m really looking forward the “social aspect” of KDE and how we can improve this. However, no spoilers before I get something done :).

By the end of the month (22-24 of October) I’ll give a talk on Latinoware about netbooks. I’ll use a lot of stuff from my GCDS talk but now I’ll have a lot of stuff to show off too, so I must change some bits of the presentation. On the other hand I think that this one will be much fancier and nicer to watch than the GCDS one that was more “theoretical” because all the work was at the very beginning. To show the power of remote widgets I’m planning to show a remote widget running on my netbook and also on a N900! This is not hard to achieve but I must have some time to put my hands on it.

This is the first time that I blog through an application instead of doing through the web editor. Blogilo just arrived on svn (at least for me :P) and I decided to give it a try. It’s really nice! It has all the features that the web editor gave to me like a visual editor, HTML editor and even a post preview. It supports categories (couldn’t find support for tags yet the tag support is just below it hehe) and also something like an auto configure based on the URL of your blog…really nice! I’m just missing it as a plugin for Kontact that is the place where I keep all my PIM stuff. Ah, talking about PIM I learned some nice stuff from Akonadi that I didn’t know with the series of blog posts on planet KDE about it.

KDE blog client

Ah, and before I forget: congrats to Amarok team for the release this week! I’m a “trunk user” but I know how good and stable the release is!