Hello,
Yes I'd like to have some information to see if we took the same way
or not so :
How do you choose the JSP for an handset?
How to write the appropriate code for handset in the JSP?
Regards,
Fred
Le 29/11/2010 23:07, Jonathan Markow a écrit :
Hello, Frédéric-
Do you have specific questions about Jasig's mobile framework?
What kind of information would be helpful to you?
Thanks,
Jonathan
2010/11/26 Frédéric Ravetier <frederic.ravet...@anyware-services.com>
Hello,
Can you please give us more technical detail about your
implementations please? We may change our way to do it soon.
Regards,
Fred
Le 23/11/2010 16:51, Jennifer Bourey a écrit :
Hi Frédéric,
While Jasig doesn't use JSF, we've so far
developed several portlets that are capable of
displaying both mobile and desktop views. The
development strategy so far has been fairly
straightforward, and I believe fairly
successfully. Most of our portlets use Spring 2.5
with annotation-based controllers, combined with
JSTL-based JSPs for the view layer.
We've generally written some sort of
IViewSelector interface to assign JSPs
appropriately to user requests. It's worth noting
that often these take both the browser's user
agent and the portlet window state into
consideration (we've found that often the
non-focused view of portlets looks similar, or
even overlaps with, the mobile view). If you're
interested in looking at sample mobile/desktop
portlets that Jasig has already developed, the
Calendar, Announcements, and Course Schedule
portlets might all be good candidates.
Jasig makes an effort to ensure that portlets
can be used in portals other than uPortal, and the
view selector interface allows adopters to
potentially plug in another implementation if the
default doesn't work for the selected environment.
For example, in Liferay 5.x it's not possible to
get the user-agent from the portlet request
properties list, but we were able to get around
that issue with an alternate implementation.
It seems like moving from custom regex parsing
to using WURFL might be an improvement for browser
detection. I know that's a library that Steve
Swinsburg recommended in an earlier thread as
well. I have to admit that I'm not personally
familiar with WNG, so I'm not quite sure what use
case its designed to meet. I'll certainly take a
look at it, but I'd love to hear what you all are
planning to use it for.
The one note of caution about user agent-based
view selection is that we've recently discussed a
requirement for allowing users to select which
portal view is displayed on a mobile device. For
example, an iPhone user might decide for some
reason that they'd like to toggle between the
full/desktop and mobile views of the portal. To
be able to implement that sort of feature, we'd
need to have the portal get some sort of string
representing the current portal theme and perform
view selection based on that, rather than the user
agent string. We've initially had reservations
about doing this since it seems like it would
bring too much information about uportal into the
portlet, but it seems like that feature is going
to be increasingly expected from a mobile portal.
I noticed that your list of desired mobile
portlets does overlap significantly with some of
the current Jasig portlets. The Jasig calendar
portlet already has a mobile view, and Jasig also
has RSS (News Reader) and LDAP directory search
(called the Tabbed Search Portlet) that seem
likely to acquire mobile views sometime soon. I
don't know if any of those might meet your needs,
or be a suitable starting point for adding new
features, but it would be terrific to be able to
collaborate on mobile development between Jasig
and ESUP Portail.
One last technical clarification: If this work
is targeting uPortal 3.2, it seems like a Tomcat
filter might not be a viable option. I believe
it's the case that filters can't be applied to
portlet requests until JSR-286, which uPortal does
not support. However, as I've described above,
we've been successful with performing JSP view
selection from Spring-based portlet controllers.
- Jen
On Nov 22, 2010, at 10:59 AM, Frédéric Ravetier
wrote:
Hello,
I am the project manager for the "ESUP Mobile
Project", working at Anyware-Services.
We started the development last week. Our first
portlet is a portlet to display messages (email
from an IMAP server that is under CAS).
Note that most of the ESUP portlet are using JSF
(which is a real difficulty to use the taglib
WNG from Wurfl with JSF). Also the goal is to
have a multi-channel portlet (available to
display data on mobile and desktop).
Our strategy is:
1- to develop a web portlet with a default and
simple skin (based on JSF)
2- build a filter (tomcat filter) based on WURFL
to detect if the user is using a mobile or a
desktop browser
3- make a mechanism to choose the JSP depending
of the detection (mobile to use WNG taglib -
from WURFL - or desktop to use classic JSF
taglib)
4- modify the WNG taglib to work in an JSF
environment.
The last step may failed or may be too hard or
too complicate to maintain. In this case we will
reduce our constraints and we will use another
taglib to render data to mobile. We already
think about Trinidad. If you have suggestion I
am open to them. We'd like to avoid framework or
library that are only webkit compatible, because
we'd like to support many mobile browsers and
not only iphone and smartphone. It is a wish
that can be reduce depending on the complexity
and the maintainability.
Why WURFL, because it is THE taglib known by
most of the mobile developers that want a real
compatibility with most of the mobiles.
We are currently at step 2. We made the step 1
with some small doubt on step 1 because of the
CAS environment, we do not have an IMAP that
support CAS here.
Do you have suggestions?
Do you have others informations?
Do not hesitate to contact me in order to have
more information or to share some knowledge.
Then we will have some others portlet to enhance
or to develop (Calendar, Directory based on
LDAP, news, ...)
Let me know if you prefer another discussion
channel than this one.
Sincerely,
Frédéric Ravetier
Project Manager
Anyware-Services ( www.anyware-services.com)
frederic.ravet...@anyware-services.com
Phone: +33 5 62 19 19 03
Ametys: The CMS Java Open Source www.ametys.org
Le 22/11/2010 16:03, Jonathan Markow a écrit :
I recently had a
conversation with Alain Mayeur, director of
ESUP Portail, the nation-wide consortium of
French universities that have developed a
"Digital Work Space" based on uPortal, CAS,
and a host of other open source applications
that they have developed or integrated.
Alain told me about two projects currently
underway that are of interest to Jasig.
The first one is the ESUP Mobile Project.
With several participating universities,
this project is working to coordinate the
development of mobile services supported by
the mobile framework in uPortal 3.2. The
wiki page for the project (in French) is
located at http://www.esup-portail.org/display/PROJESUPMOBILE/Projet+ESUP+Mobile.
A second project, also the result of a
collaboration among several organizations,
is designed to enhance the content
management capabilities of uPortal.
Alain will ask the project leads to send us
more information about these initiatives. I
am hoping there might be some areas in which
Jasig developers would be able to
contribute.
-Jonathan
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