On 23rd of April 2015, Mihai Șucan passed away due to metastatic
cancer caused by RDEB.
My name is Mihai and I work on the Firefox developer tools.
When it comes to web development, I like both server-side and
client-side work. I am mainly interested in web browsers, web
standards and related technologies.
26 June 2010, 20:08
Three days ago we received great news from Microsoft: the
third platform preview release of Internet Explorer 9 includes
support for the
Canvas 2D Context API. Canvas comes
into IE 9 together with numerous other platform improvements.
These days I have been working on my open source project, PaintWeb. I am quite
excited to see it running quite well in MSIE 9.
Go ahead and try the
PaintWeb demo page in Internet Explorer 9!
What works? Almost everything. Known issues:
globalCompositeOperation property is not yet
supported by MSIE 9. The Color mixer visualization looks a bit
weird because of this.
- If you change the
properties the Canvas element is cleared. This is wrong and breaks
the implementation of image load and zoom. Check a minimal test case.
integration into TinyMCE demo page fails to work. It seems that
TinyMCE 3.2.5 fails to work properly in MSIE 9. I shall upgrade it
to the latest version, and thus update the PaintWeb plugin as well.
You may also check the
PaintWeb change log, for more details.
14 August 2009, 10:36
Together with my mentor, Martin Langhoff, we have decided that it's
better for me to focus on the Moodle 2.0 integration of PaintWeb. This is because
Moodle 1.9 lacks a file API sufficiently advanced to meet the needs
of PaintWeb usage. Martin opened a relevant thread in the Moodle
forums about storing images
as attachements to text fields - it's worth reading to
understand why PaintWeb integration is far from trivial. Moodle 2.0
has the solution to our problem: the new File
Focusing on Moodle 2.0 integration does not mean we do not want to
complete the work started for Moodle 1.9. However, we want to have
PaintWeb ready for core integration, for the Moodle 2 final
release. The plan is for me to resume work on Moodle 1.9, some time
The Moodle developers are hard at work for the new Moodle 2.0.
They've done numerous improvements. If you like Moodle 1.9, you
will love Moodle 2.0. Integrating PaintWeb into the new version was
much nicer and quicker.
I completed the integration of PaintWeb into TinyMCE, and I also
made the image save action to work quite well. Images are saved in
the draft file area, as is the rule for any textarea-attached file.
If you want to get the Moodle 2.0 code with PaintWeb, get it from
git clone git://repo.or.cz/moodle/mihaisucan.git ~/src/moodle
git checkout -b mdl20-paintweb origin/mdl20-paintweb
You might be interested to read the
technical details about the Moodle 2.0 integration work,
published at Moodle Docs.
Since my last blog post, I also made important updates for the
Olli Savolainen has provided me
with more suggestions which I implemented. Thus, I changed the
color to yellow, for the "plugin bar" of the TinyMCE plugin. I also
made the "Save" and "Cancel" buttons look better. Last, but not
least, based on his suggestion I found a fix for the "Edit" overlay
button, for Firefox. For some reason, the button was not easily
clickable in Gecko-based browsers. The problem is now gone. Thank
you very much, Olli!
For better usability, I made the whole PaintWeb GUI resizable. Now,
users are no longer stuck with the fixed dimensions. The TinyMCE
plugin has been updated to synchronise the size of the editor area
with the size of the PaintWeb image viewport, for a better user
You can go ahead and try the updated PaintWeb+TinyMCE
With the latest work, I am meeting the Google Summer of Code
project goals: the development and integration of a paint tool
inside Moodle via TinyMCE. There's only some polishing work left to
do, and code reviewing from more Moodle developers.
24 July 2009, 12:21
I am getting closer to having a Moodle demo ready with PaintWeb integrated.
Wednesday I had a very fruitful discussion with my mentor, Martin,
on how I should proceed with the implementation of file saving
inside the Moodle data directory. We have come to a conclusion
which I am about to implement. More details soon.
For now, I have registered a Moodle Git repository mirror
over at repo.or.cz. I have also
registered a Moodle "fork" where I publish my Moodle branches.
You can do:
git clone git://repo.or.cz/moodle/mihaisucan.git ~/src/moodle-mihai
git checkout -b mdl19-paintweb origin/mdl19-paintweb
With that, you can easily and quickly get an always up-to-date
Moodle 1.9 stable branch with TinyMCE 3 and PaintWeb
integrated. You can already play with PaintWeb in Moodle.
If you only want the TinyMCE 3 editor you can do:
git checkout -b mdl19-tinymce3 origin/mdl19-tinymce3
The TinyMCE 3 branch holds Moodle 1.9 stable with the latest
TinyMCE 3 integrated. The work I did on this branch is best
explained in a Moodle
When you want to update your branch simply invoke
pull. Please also check the official documentation about
how to use Git.
In related news, Opera Software has published the final part of the
article serie I wrote about
keyboard accessibility in Web applications. This article
details the cross-browser compatibility layer implementation for
keyboard events used by PaintWeb.
17 July 2009, 11:05
The Google Summer of Code midterm evaluations passed without any
problems for me, yay!
I have began work on integrating PaintWeb into Moodle. I will integrate my project
into the stable Moodle 1.9 branch and into the upcoming Moodle 2.0
Moodle 1.9 has a very old TinyMCE release (version 2.0)
which is not used by default - the even older HTMLArea is still
used. Both do not work in Opera and Google Chrome. For this reason
Martin Langhoff, my mentor, and other Moodle community members have
worked on patches to switch to the modern TinyMCE 3 editor. A
port of TinyMCE 3 to Moodle 1.9 is available on the Moodle
The clean port is quite well done, but again, it was "outdated",
being from october 2008.
For PaintWeb I took the work Martin did and updated it to the
latest Moodle 1.9 stable branch, the latest TinyMCE 3 version, and
made additional fixes. One fix was to make the editor show up in
Opera, Safari and Chrome, and another fix was for the script which
converts TinyMCE language files to Moodle language files.
PaintWeb integration into Moodle 1.9 will come as a patch on top of
the TinyMCE 3 patch. Currently I got PaintWeb loading fine in
TinyMCE, inside Moodle. More work is needed to get file save
working. For PaintWeb I did some assorted fixes for the Makefile,
for the overall keyboard accessibility, for multi-language support,
and I did improvements to the TinyMCE plugin.
You can download the updated TinyMCE 3
patch for Moodle 1.9. The package includes usage instructions.
In other related news, Opera Software has published the second part
of the article I wrote about
keyboard accessiblity in Web applications. This article
describes the inner workings of the MouseKeys extension for
PaintWeb. Make sure you checkout the updated and improved
source code of the MouseKeys extension in the PaintWeb code
Have fun until the next time!
8 July 2009, 14:03
In the past week there was important progress on PaintWeb. I have published
several wiki pages about PaintWeb on Google Code - this documentation comes
as an overview or a guide to the entire codebase and the API
reference. You can read about how to
integrate PaintWeb into your Web application, how to
extend PaintWeb, how to
package PaintWeb yourself with the Makefile, and how to use
the new TinyMCE plugin.
I have completed a new
TinyMCE plugin which allows you to easily and quickly integrate
PaintWeb. This plugin allows users to click an "Edit" button which
is overlayed on top of the editable images. The plugin also
includes a context menu item (right-click and choose "Edit image"),
and a toolbar button.
I have published a new demo page which shows the latest TinyMCE
and PaintWeb working together. Enjoy!
Moodle integration is currently being planned. I wrote my thoughts
and questions in a Moodle Docs wiki page about the
paint tool integration.
Last, but not least, for the purpose of tracking progress, I have
attached a packaged PaintWeb snapshot to the Moodle tracker
issue associated with my project.
Olli Savolainen has created some
very good mockups as proposals to improve
the PaintWeb user interface. His feedback is very much
appreciated, and I really hope to get to implement his suggestions
as soon as possible. Thanks Olli!
On a related note, for those interested on
how PaintWeb implements keyboard shortcuts, Opera Software has
just published the first part of a series of articles I wrote on
this topic. More articles will be published soon at the Opera Developer community site.
Have fun testing PaintWeb and reading articles about it. Don't
forget that I am always looking forward for feedback!