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Posted to users@wicket.apache.org by Patrick Petermair <pa...@openforce.com> on 2011/01/31 12:07:58 UTC
correct way to get css classes of component
Hi!
I was trying to solve the problem of replacing a specific css class of a
wicket component with another css class. Google pointed me to the
following thread:
http://apache-wicket.1842946.n4.nabble.com/How-to-add-and-remove-css-classes-the-right-way-td1868408.html
The nice and simple solution was something like this:
String oldCss = String.valueOf(this.getMarkupAttributes().get("class"));
String newCss = oldCss.replaceFirst("old", "new");
new SimpleAttributeModifier("class", newCss);
I've used it and it works just fine.
Unfortunately - as I've just found out - the method
getMarkupAttributes() has the following javadoc:
"THIS IS WICKET INTERNAL ONLY. DO NOT USE IT."
If I'm not supposed to use getMarkupAttributes(), what would be the
correct way then to get the current css classes of a wicket component?
Cheers,
Patrick
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Re: correct way to get css classes of component
Posted by msj121 <ms...@gmail.com>.
You can also use an AttributeModifier, which will give you the old value (as
I recall).
overriding the method onComponentTag(ComponentTag tag), will let you easily
put a new variable for your class etc... but you will need to use tag.get(),
and tag.put(tag.get("")+"..."). Looks somewhat messy when you start using
StringBuffers, unless your doing a lot of tag modifications might as well
use AttributeModifier.
In fact use, SimpleAttributeModifier:
component.add(new SimpleAttributeModifier("class", "my-css-class"));
More methods can be seen here:
https://cwiki.apache.org/WICKET/how-to-modify-an-attribute-on-a-html-tag.html
Matthew
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Re: correct way to get css classes of component
Posted by Pedro Santos <pe...@gmail.com>.
You can override the
Component#onComponentTag or AbstractBehavior#onComponentTag method and use
the ComponentTag API to deal with the tag attributes.
On Mon, Jan 31, 2011 at 9:07 AM, Patrick Petermair <
patrick.petermair@openforce.com> wrote:
> Hi!
>
> I was trying to solve the problem of replacing a specific css class of a
> wicket component with another css class. Google pointed me to the following
> thread:
>
>
> http://apache-wicket.1842946.n4.nabble.com/How-to-add-and-remove-css-classes-the-right-way-td1868408.html
>
> The nice and simple solution was something like this:
>
> String oldCss = String.valueOf(this.getMarkupAttributes().get("class"));
> String newCss = oldCss.replaceFirst("old", "new");
> new SimpleAttributeModifier("class", newCss);
>
> I've used it and it works just fine.
> Unfortunately - as I've just found out - the method getMarkupAttributes()
> has the following javadoc:
>
> "THIS IS WICKET INTERNAL ONLY. DO NOT USE IT."
>
> If I'm not supposed to use getMarkupAttributes(), what would be the correct
> way then to get the current css classes of a wicket component?
>
> Cheers,
> Patrick
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Pedro Henrique Oliveira dos Santos