30 Jan
2010
30 Jan
'10
11:46 a.m.
Hi Norbert,
Norbert Sándor wrote:
Hello,
I'm experimenting with the RichTextArea (RTA) in a separate application,
not in XWiki.
I checked out the xwiki-gwt-dom and xwiki-gwt-user, and RTA seems to
work well. (Until now I've created only a small demo application, with
an RTA and some buttons to execute various commands.)
Cool!
My questions are:
1. Pressing ENTER creates a BR element by default, is it possible to
create a P instead?
AFAIK there's no built-in command (like insertbronreturn) to trigger
this behavior. We have written a RTA plugin for this, which you can find
at http://tinyurl.com/yacr2l8 . All RTA plugins are for the moment in
platform/web/wysiwyg module. The line plugin is pretty much generic so
you could try to reuse it.
(The behaviour of the ENTER key inside a P can
be set by executing
the insertbronreturn command, but the default document always
contains a BR, and if I set the initial content to <p></p>, I
cannot navigate the cursor inside the P...)
You can place the caret inside the empty paragraph using the selection
API but you have to make sure the user can't leave the body element
empty (e.g. in Firefox if the user selects all content and deletes it
you're back to the initial BR).
2. Is there a way to listen to selection events?
(I want to enable/disable some buttons based on the current
selection.)
Unfortunately no. AFAIK only IE has a native event for selection change.
We overcome this by listening to key up, mouse up and command events
on the RTA. You can take a look at http://tinyurl.com/yas4fxn .
AbstractStatefulPlugin listens to this events and schedules updates of
its state using a DeferredUpdater (only the most recent update is
executed). In our editor we adopted this strategy: each plugin is
responsible for updating its state (e.g. detect bold style) and the
editor is responsible to enabling/disabling features based on some rules.
3. Are there any extensions to the default RTA in the other parts of
XWiki?
(I mean for example commands and controls for editing TABLEs
visually, toolbars that are enabled/disabled based on the content
of the RTA, etc. - I haven't looked at all the source code yet,
it's huge :)
platform/web/wysiwyg module contains plugins built on top of the RTA
(from xwiki-gwt-user module) and they use the DOM and Selection API from
xwiki-gwt-dom module. Some of the plugins overwrite the default RTA
commands with their improved version. For instance TextPlugin (
http://tinyurl.com/y8eoh2f ) registers custom executables for default
RTA command like bold and italic. In the same way FormatPlugin
overwrites the removeformat command. Most of this plugins are generic.
Some are XWiki specific: link, image, import and macro.
We have a table plugin, but it offers basic features like insert row
after or delete column.
Hope this helps.
Marius
That's for a starter :)
Thanks for your help in advance!
Best regards:
--
Norbert Sándor
http://jvminside.blogspot.com/
_______________________________________________
devs mailing list
devs(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/devs