protected int renderGroupOrItemCheckbox()

in impl/src/main/java/org/apache/myfaces/renderkit/html/base/HtmlCheckboxRendererBase.java [214:352]
106 lines of code
27 McCabe index (conditional complexity)

    protected int renderGroupOrItemCheckbox(FacesContext facesContext,
                                             UIComponent uiComponent, SelectItem selectItem,
                                             boolean useSubmittedValues, Set lookupSet,
                                             Converter converter, Boolean usingTable,
                                             Integer itemNum) throws IOException
    {

        ResponseWriter writer = facesContext.getResponseWriter();

        boolean isSelectItemGroup = (selectItem instanceof SelectItemGroup);

        UISelectMany selectMany = (UISelectMany) uiComponent;

        if (isSelectItemGroup)
        {
            if (usingTable == Boolean.TRUE)
            {
                writer.startElement(HTML.TR_ELEM, null);
            }

            writer.startElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM, null);
            if (selectItem.isEscape())
            {
                writer.writeText(selectItem.getLabel(),HTML.LABEL_ATTR);
            }
            else
            {
                writer.write(selectItem.getLabel());
            }

            if (usingTable != null)
            {
                writer.endElement(HTML.TD_ELEM);
            }

            if (usingTable == Boolean.TRUE)
            {
                writer.endElement(HTML.TR_ELEM);
                writer.startElement(HTML.TR_ELEM, null);
            }

            if (usingTable != null)
            {
                writer.startElement(HTML.TD_ELEM, null);
            }

            writer.startElement(usingTable != null ? HTML.TABLE_ELEM : HTML.UL_ELEM, null);
            if (usingTable != null)
            {
                int border = 0;
                Object borderObj = uiComponent.getAttributes().get("border");
                if (null != borderObj)
                {
                    border = (Integer) borderObj;
                }
                if (Integer.MIN_VALUE != border)
                {
                    writer.writeAttribute(HTML.BORDER_ATTR, border, "border");
                }
            }

            if(usingTable == Boolean.FALSE)
            {
                writer.startElement(HTML.TR_ELEM, null);
            }

            SelectItemGroup group = (SelectItemGroup) selectItem;
            SelectItem[] selectItems = group.getSelectItems();
            
            for (SelectItem groupSelectItem : selectItems)
            {
                itemNum = renderGroupOrItemCheckbox(facesContext, selectMany, groupSelectItem, useSubmittedValues,
                                                    lookupSet, converter, usingTable, itemNum);
            }

            if(usingTable == Boolean.FALSE)
            {
                writer.endElement(HTML.TR_ELEM);
            }
            writer.endElement(usingTable != null ? HTML.TABLE_ELEM : HTML.UL_ELEM);
            writer.endElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM);

            if (usingTable == Boolean.TRUE)
            {
                writer.endElement(HTML.TR_ELEM);
            }

        }
        else
        {
            Object itemValue = selectItem.getValue(); // TODO : Check here for getSubmittedValue. 
                                                      // Look at RendererUtils.getValue
            String itemStrValue =  org.apache.myfaces.core.api.shared.SharedRendererUtils.getConvertedStringValue(
                    facesContext, selectMany, converter, itemValue);
            
            boolean checked = lookupSet.contains(itemStrValue);
            
            // IF the hideNoSelectionOption attribute of the component is true
            // AND this selectItem is the "no selection option"
            // AND there are currently selected items
            // AND this item (the "no selection option") is not selected
            if (HtmlRendererUtils.isHideNoSelectionOption(uiComponent)
                    && selectItem.isNoSelectionOption() 
                    && !lookupSet.isEmpty()
                    && !checked)
            {
                // do not render this selectItem
                return itemNum;
            }

            writer.write("\t\t");
            if (usingTable == Boolean.TRUE)
            {
                writer.startElement(HTML.TR_ELEM, null);
            }
            writer.startElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM, null);

            boolean disabled = selectItem.isDisabled();

            String itemId = renderCheckbox(facesContext, selectMany, itemStrValue, disabled, checked, false, itemNum);

            // label element after the input
            boolean componentDisabled = isDisabled(facesContext, selectMany);
            boolean itemDisabled = (componentDisabled || disabled);

            HtmlRendererUtils.renderLabel(writer, selectMany, itemId, selectItem, itemDisabled, checked);

            writer.endElement(usingTable != null ? HTML.TD_ELEM : HTML.LI_ELEM);
            if (usingTable == Boolean.TRUE)
            {
                writer.endElement(HTML.TR_ELEM);
            }
            
            // we rendered one checkbox --> increment itemNum
            itemNum++;
        }
        
        return itemNum;
    }