YUI RTE Customisation

Hi,

has anyone a working example how to add some sort of plugin to the yui
rte as it's described online[1]? It would be great if there would be a
way to do this without modifying the content of the orbeon jars.

In the mailing list archives, i've found some information how to apply a
custom configuration to the rte [2] using YUI_RTE_CUSTOM_CONFIG, so it's
possible to add custom toolbar buttons, but i found no way to make those
custom buttons trigger a custom function.

florian

PS: I'm still searching for a way to make xxforms:dialog windows
resizeable. There's a "Resize Utility" shipping with YUI [3] - it there
a way to use it together with xxforms:dialog or xf:htmlarea?

[1] http://developer.yahoo.com/yui/editor/#plugins
[2]
http://n4.nabble.com/Modifying-the-YUI-Rich-Text-Editor-buttons-tp998305p999591.html
[3] http://developer.yahoo.com/yui/resize/



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ok, i found a way to add a working custom button to insert a custom (non-html) element in the htmlarea and get it displayed using css  (btw - could i get a wiki account so i could write a short text about the solution?). But when putting the editor content into my xforms instance, the custom tag seems to be stripped (checked using instance explorer) . I'm using a modified clean-html.xsl containing my custom element, but that didn't help.

In the YUI forums, i got the info that the rte doesn't strip unknown elements, so now i need a way to debug what's going on when the editor content is sent to the server. Is there a way to debug the input/oputput of the clean-html.xsl transformation?

BTW, i'm using a nightly build downloaded yesterday with Tomcat 6.0.?? / Ubuntu 9.10.

I'll try to create a sandbox example tomorrow.

florian

This is great news!  You got it halfway working, which is halfway more than I did.  I also ran into the problem of having my custom XML element stripped out, but I wasn't sure if it was on the yuiRTE, Orbeon, or browser levels.  At least you got your custom XML element represented in CSS, that's a great step in the right direction.  That effectively eliminates the RTE as the culprit, and I also added my element to clean.html.xsl  Please keep the list posted on your progress.  This is something I also plan on working on fairly soon.

Ethan





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after all, i think i found the cause. When using the nightly builds,
custom (non-html) tags are stripped by the TagSoup lib - TagSoup
prepares the htmlarea content before clean-html.xsl jumps in. So, after
TagSoup had removed any custom tags, a modified clean-html.xsl can't
help any more.

To tell TagSoup to ignore custom tags, it seems to be sufficient to
comment out line 294 of src/java/org/orbeon/oxf/xforms/XFormsUtils.java
[1], or to set the Feature to false:

xmlReader.setFeature(org.ccil.cowan.tagsoup.Parser.ignoreBogonsFeature,
true);

At first i thougth that this line would make TagSoup ignore "bogons"
[2], but it seems that is does the opposite! After removing that line or
setting ignoreBogonsFeature to false, TagSoup behaves as if it was
called from the command line, where it suppresses unknown elements only
if the option --nobogons is explicitly set.

Maybe that feature should generally be set to 'false'. So, TagSoup just
creates valid html including any unknown tags, and it's solely the task
of clean-html.xsl to decide which tags should be allowed in the editor
output.

florian

[1]
http://github.com/orbeon/orbeon-forms/blob/master/src/java/org/orbeon/oxf/xforms/XFormsUtils.java

[2] http://home.ccil.org/~cowan/XML/tagsoup/#properties



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Florian,

> ok, i found a way to add a working custom button to insert a custom
> (non-html) element in the htmlarea and get it displayed using css :jumping:
> (btw - could i get a wiki account so i could write a short text about the
> solution?).

Send me the email address you want to use  and I will add you to the wiki.

> But when putting the editor content into my xforms instance, the
> custom tag seems to be stripped (checked using instance explorer) :-((. I'm
> using a modified clean-html.xsl containing my custom element, but that
> didn't help.
>
> In the YUI forums, i got the info that the rte doesn't strip unknown
> elements, so now i need a way to debug what's going on when the editor
> content is sent to the server. Is there a way to debug the input/oputput of
> the clean-html.xsl transformation?

In your oxf.xforms.logging.debug, add the "control" token to the
value, and the before/after values will be logged.

-Erik


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Erik,

> Send me the email address you want to use  and I will add you to the wiki.

please use this address: [hidden email]

> In your oxf.xforms.logging.debug, add the "control" token to the
> value, and the before/after values will be logged.

thanks - i found it already myself (still have to get familiar with the
documentation split between the main site and the wiki), and it became
apparent that TagSoup was responsible for stripping the unknown
elements. Concerning TagSoup, i think it's a bug that unknown tags are
suppressed instead of ignored when ignoreBogonsFeature is true, but i
didn't get an answer yet on the TagSoup google group. I will report if
there are any news.


florian


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>> Send me the email address you want to use  and I will add you to the wiki.
>
> please use this address: [hidden email]

You now now been added as a collaborator.
Good please keep us posted!

-Erik


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Could someone possible provide the updated orbeon.war with the tagsoup allowing unknown xml elements?  I attempted to package up a new jar file but I get an error when it is deployed in tomcat.  Or maybe detailed instructions on the steps you take to get the downloaded unmodified orbeon.war to be modified to allow xml elements in RTE.  I see this is not done on the wiki yet.

What I am doing is creating a template within the RTE and placing XML elements for users to enter in required fields.  This works, but whenever the user wants to bold some text within the RTE, as soon as the focus is set off the RTE, the bold font style goes away?

I am hoping that this thread will resolve that issue.

Thank you.

Brian,

> Could someone possible provide the updated orbeon.war with the tagsoup
> allowing unknown xml elements?  I attempted to package up a new jar file but
> I get an error when it is deployed in tomcat.  Or maybe detailed
> instructions on the steps you take to get the downloaded unmodified
> orbeon.war to be modified to allow xml elements in RTE.  I see this is not
> done on the wiki yet.

shortly after i started to create that wiki page, a mozilla update
caused major changes regarding the insertHtml function i proposed to
use. Now, firefox removes non-html elements from content that's passed
to the insertHtml function. So, modifying the YUI RTE as proposed has no
benefit for me any more, and any solution would be browser-specific. So
i stopped with that wiki page half the way. How to continue depends on
how the mozilla developers handle the issue. It seems that non-HTML
elements will stay invalid and get stripped when using insertHtml...

Regarding the TagSoup lib, i'm not sure about the cause of the problem.
What's the error message? Did you test the modified jar separately? With
line 962 of Parser.java commented out, the --nobogons option should have
no effect any more. This should render the ignoreBogonsFeature=true
noneffective, so TagSoup should simply sanitize malformed xml, without
stripping any unknown tags.

> What I am doing is creating a template within the RTE and placing XML
> elements for users to enter in required fields.  This works, but whenever
> the user wants to bold some text within the RTE, as soon as the focus is set
> off the RTE, the bold font style goes away?

hmm - not clear to me - the bold style is using html, i suppose, so
TagSoup shouldn't modify the content at all. As long as you don't update
your xforms instance, tagsoup shouldn't catch sight of the editor
content, so i doubt that tagsoup is the cuplrit in this case.

HTH
florian



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I modified the clean-html.xsl to include a tag just to test.  This allowed the tag to remain, but I am still not able to format any other text with this tag in the reference.  I am assuming it has something to do with XFormsUtils.class.  I decompiled and set attribute bogons to false but I am not able to comppile because I do not have the locations of all the class files which are icnluded on the imports I am assuming.

So, little further but still stuck.  Appreciate the help.  Thanks.

Brian,

> I am assuming it has something to do with XFormsUtils.class.  I
> decompiled and set attribute bogons to false but I am not able to
> comppile because I do not have the locations of all the class files
> which are icnluded on the imports I am assuming.

there's no need to decompile the class files - just grab the sources
at github, extract them and select "open project" in IntelliJ [1].
Then, one click should be sufficient to build all parts and create a
WAR structure (using the orbeon-war target).

Both the TagSoup and Tidy (BTW: the jtidy lib shipped with Orbeon
seems very old) config options are hard-coded in XFormsUtils.java.
Changing the TagSoup options (especially the ignoreBogonsFeature)
maybe woulnd't be sufficient, because the content of a xforms:output
with mediatyp="text/html" gets cleaned up by JTidy. So even if custom
tags have reached the instance, they won't get displayed in an
xforms:output (i suppose that was the cause for the disappearance of
the canvas element, too).

At least Tidy allows external configuration using
setConfigurationFromFile() or setConfigurationFromProps - so Tidy
should be easily configurable without recompiling XFormsUtils if one
of those config alternatives is implemented. Doesn anyone know how to
reference a file in, e.g., WEB-INF/resources/config for usage in
setConfigurationFromFile()? This way, setting the new-inline-tags or
new-empty-tags options should make tidy accept custom tags.

HTH
florian

[1]
http://wiki.orbeon.com/forms/doc/contributor-guide/development-environment/java-development




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