Ability to add attributes to drop-down-list (select) options
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Key: WICKET-1785
URL: https://issues.apache.org/jira/browse/WICKET-1785
Project: Wicket
Issue Type: Improvement
Components: wicket
Affects Versions: 1.4-M3
Reporter: Martin Makundi
Priority: Minor
Time-after-time, there is need to style your select options in a DropDownChoice
component. For example, the different options need to have different background
colour, or something.
This can be accomplished using Select/SelectOption, but here you are required
to re-implement all the intelligence already built into the
dropdownchoice/listchoice component (automatic notnull and localization, for
example).
How could we leverage the existing functionality of the DropDownChoice but
enhance it with the ability to parametrize option attributes individually?
Our suggestion is that we refactor suitable hooks into the rendering phase of
the xxChoice components, i.e., a method along the lines of "String
getOptionAttributes(T t)" to be called, during the render phase of a
DropDownChoice (in order to add attributes for the option tag).
With this kind of impementation it would then be easier for anybody to
'sugarcoat' their DropDownChoice without breaking the existing inplementations.
For example, one way to use it would be to just add a getDispayStyle method
into your implementation of the IChoiceRenderer, and implement a respective
check in your overriding "getOptionAttributes" -method:
MyDropDownChoice extends DropDownChoice() {
@Override
protected String getOptionAttributes(T t) {
if (renderer instanceof MyChoiceRenderer) {
... and sugarcoat my option ...
}
}
}
More discussion can be found at:
http://www.nabble.com/color-code-options-in-drop-down-choice-tp16964792p18909328.html
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