protected void renderSelectItems()

in tobago-core/src/main/java/org/apache/myfaces/tobago/renderkit/RendererBase.java [433:517]
80 lines of code
26 McCabe index (conditional complexity)

  protected void renderSelectItems(
      final UIInput component, final TobagoClass optionClass,
      final Iterable<SelectItem> items, final Object[] values, final String[] submittedValues,
      final Boolean onlySelected, final TobagoResponseWriter writer, final FacesContext facesContext)
      throws IOException {

    if (LOG.isDebugEnabled()) {
      LOG.debug("component id = '{}'", component.getId());
      LOG.debug("values = '{}'", Arrays.toString(values));
      LOG.debug("submittedValues = '{}'", Arrays.toString(submittedValues));
    }
    for (final SelectItem item : items) {
      if (item instanceof SelectItemGroup) {
        writer.startElement(HtmlElements.OPTGROUP);
        writer.writeAttribute(HtmlAttributes.LABEL, item.getLabel(), true);
        if (item.isDisabled()) {
          writer.writeAttribute(HtmlAttributes.DISABLED, true);
        }
        final SelectItem[] selectItems = ((SelectItemGroup) item).getSelectItems();
        renderSelectItems(component, optionClass, Arrays.asList(selectItems), values, submittedValues,
            onlySelected, writer, facesContext);
        writer.endElement(HtmlElements.OPTGROUP);
      } else {
        Object itemValue = item.getValue();
        // when using selectItem tag with a literal value: use the converted value
        if (itemValue instanceof String && values != null && values.length > 0 && !(values[0] instanceof String)) {
          itemValue = ComponentUtils.getConvertedValue(facesContext, component, (String) itemValue);
        }
        final String formattedValue = getFormattedValue(facesContext, (T) component, itemValue);
        final boolean contains;
        if (submittedValues == null) {
          contains = ArrayUtils.contains(values, itemValue);
        } else {
          contains = ArrayUtils.contains(submittedValues, formattedValue);
        }
        if (item.isNoSelectionOption() && component.isRequired() && values != null && values.length > 0 && !contains) {
          // skip the noSelectionOption if there is another value selected and required
          continue;
        }
        if (onlySelected != null) {
          if (onlySelected) {
            if (!contains) {
              continue;
            }
          } else {
            if (contains) {
              continue;
            }
          }
        }
        writer.startElement(HtmlElements.OPTION);
        writer.writeAttribute(HtmlAttributes.VALUE, formattedValue, true);
        if (item instanceof org.apache.myfaces.tobago.model.SelectItem) {
          final String image = ((org.apache.myfaces.tobago.model.SelectItem) item).getImage();
          if (image != null) {
            final AbstractUIStyle style = (AbstractUIStyle) facesContext.getApplication()
                .createComponent(facesContext, Tags.style.componentType(), RendererTypes.Style.name());
            style.setTransient(true);
            style.setBackgroundImage(image);
            style.setSelector(
                StyleRenderUtils.encodeIdSelector(component.getClientId(facesContext))
                    + " option[value=" + formattedValue + "]");
            // XXX This works not in common browsers...
            component.getChildren().add(style);
          }
        }
        Markup markup = item instanceof Visual ? ((Visual) item).getMarkup() : Markup.NULL;
        if (onlySelected == null && contains) {
          writer.writeAttribute(HtmlAttributes.SELECTED, true);
          markup = Markup.SELECTED.add(markup);
        }
        if (item.isDisabled()) {
          writer.writeAttribute(HtmlAttributes.DISABLED, true);
          markup = Markup.DISABLED.add(markup);
        }
        writer.writeClassAttribute(optionClass);

        final String label = item.getLabel();
        if (label != null) {
          writer.writeText(label);
        }
        writer.endElement(HtmlElements.OPTION);
      }
    }
  }