Martin, why not put something like this in minis?
2009/12/4 Martin Makundi <[email protected]>
> Free4U
>
> public class DropDownChoiceWithStylingOptions<T> extends DropDownChoice<T>
> {
> private String previouslyAppendedOptGroupLabel;
> private int choices;
>
> /**
> * @param id
> * @param choices
> * @param renderer
> */
> public DropDownChoiceWithStylingOptions(String id,
> IModel<? extends List<? extends T>> choices,
> IChoiceRenderer<? super T> renderer) {
> super(id, choices, renderer);
> }
>
> /**
> * @param id
> * @param choices
> */
> public DropDownChoiceWithStylingOptions(String id,
> IModel<? extends List<? extends T>> choices) {
> super(id, choices);
> }
>
> /**
> * @param id
> * @param model
> * @param choices
> * @param renderer
> */
> public DropDownChoiceWithStylingOptions(String id, IModel<T> model,
> IModel<? extends List<? extends T>> choices,
> IChoiceRenderer<? super T> renderer) {
> super(id, model, choices, renderer);
> }
>
> /**
> * @param id
> * @param model
> * @param choices
> */
> public DropDownChoiceWithStylingOptions(String id, IModel<T> model,
> IModel<? extends List<? extends T>> choices) {
> super(id, model, choices);
> }
>
> /**
> * @param id
> * @param model
> * @param data
> * @param renderer
> */
> public DropDownChoiceWithStylingOptions(String id, IModel<T> model,
> List<? extends T> data, IChoiceRenderer<? super T> renderer) {
> super(id, model, data, renderer);
> }
>
> /**
> * @param id
> * @param model
> * @param choices
> */
> public DropDownChoiceWithStylingOptions(String id, IModel<T> model,
> List<? extends T> choices) {
> super(id, model, choices);
> }
>
> /**
> * @param id
> * @param data
> * @param renderer
> */
> public DropDownChoiceWithStylingOptions(String id, List<? extends T> data,
> IChoiceRenderer<? super T> renderer) {
> super(id, data, renderer);
> }
>
> /**
> * @param id
> * @param choices
> */
> public DropDownChoiceWithStylingOptions(String id, List<? extends T>
> choices) {
> super(id, choices);
> }
>
> /**
> * @param id
> */
> public DropDownChoiceWithStylingOptions(String id) {
> super(id);
> }
>
> /**
> * @see
> org.apache.wicket.markup.html.form.AbstractChoice#onComponentTagBody(org.apache.wicket.markup.MarkupStream,
> org.apache.wicket.markup.ComponentTag)
> */
> @Override
> protected void onComponentTagBody(MarkupStream markupStream,
> ComponentTag openTag) {
> previouslyAppendedOptGroupLabel = null;
> choices = getChoices().size();
> super.onComponentTagBody(markupStream, openTag);
> }
>
> /**
> * @see
> org.apache.wicket.markup.html.form.AbstractChoice#appendOptionHtml(org.apache.wicket.util.string.AppendingStringBuffer,
> java.lang.Object, int, java.lang.String)
> */
> @Override
> protected void appendOptionHtml(AppendingStringBuffer buffer, T choice,
> int index, String selected) {
> AppendingStringBuffer tmp = new AppendingStringBuffer(50);
> super.appendOptionHtml(tmp, choice, index, selected);
>
> if (getChoiceRenderer() instanceof IStyledChoiceRenderer) {
> IStyledChoiceRenderer<T> styledChoiceRenderer =
> (IStyledChoiceRenderer<T>) getChoiceRenderer();
>
> String currentOptGroupLabel =
> styledChoiceRenderer.getOptGroupLabel(choice);
>
> if (!Utils.equalsOrNull(currentOptGroupLabel,
> previouslyAppendedOptGroupLabel)) {
> // OptGroup changed
> if (previouslyAppendedOptGroupLabel != null) {
> endOptGroup(tmp);
> }
> if (currentOptGroupLabel != null) {
> // OptGroup started
> int start = tmp.indexOf("<option");
> StringBuilder label = new
> StringBuilder(currentOptGroupLabel.length() + 19);
> label.append("<optgroup
> label=\"").append(currentOptGroupLabel).append("\">");
> tmp.insert(start, label);
> }
> }
>
> if ((currentOptGroupLabel != null) && (index == (choices-1))) {
> // Last option group must end too
> endOptGroup(tmp);
> }
>
> {
> String cssClass =
> styledChoiceRenderer.getOptionCssClassName(choice);
> if (cssClass != null) {
> int start = tmp.indexOf("<option");
> tmp.insert(start + 7, new StringBuilder("
> class=\"").append(cssClass).append("\""));
> }
> }
>
> previouslyAppendedOptGroupLabel = currentOptGroupLabel;
> }
>
> buffer.append(tmp);
> }
>
> /**
> * @param tmp
> */
> private void endOptGroup(AppendingStringBuffer tmp) {
> // OptGroup ended
> int start = tmp.indexOf("</option>");
> tmp.insert(start + 9, "</optgroup>");
> }
> }
>
>
>
> public interface IStyledChoiceRenderer<T> extends IChoiceRenderer<T> {
> /**
> * @param t
> * @return String
> */
> public String getOptGroupLabel(T t);
>
> /**
> * @param t
> * @return String
> */
> public String getOptionCssClassName(T t);
> }
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
>
