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package com.github.dandelion.datatables.thymeleaf.processor;

import org.thymeleaf.Arguments;
import org.thymeleaf.dom.Element;
import org.thymeleaf.processor.IElementNameProcessorMatcher;
import org.thymeleaf.processor.ProcessorResult;
import org.thymeleaf.processor.element.AbstractElementProcessor;

import com.github.dandelion.datatables.core.model.HtmlRow;
import com.github.dandelion.datatables.core.model.HtmlTable;
import com.github.dandelion.datatables.thymeleaf.dialect.DataTablesDialect;
import com.github.dandelion.datatables.thymeleaf.util.Utils;

/**
 * Element processor applied to the tr HTML tag. Whenever Thymeleaf
 * meets a tr tag, a HtmlRow is added to the current table. So each
 * td tag will be able to update it.
 * 
 * @author Thibault Duchateau
 */
public class TrElProcessor extends AbstractElementProcessor {

	public TrElProcessor(IElementNameProcessorMatcher matcher) {
		super(matcher);
	}

	@Override
	public int getPrecedence() {
		return 4001;
	}

	@Override
	protected ProcessorResult processElement(Arguments arguments, Element element) {

		// Get HtmlTable POJO from local variables
		HtmlTable htmlTable = Utils.getTable(arguments);

		if (htmlTable != null) {
			htmlTable.getBodyRows().add(new HtmlRow());
		}

		if (element.hasAttribute(DataTablesDialect.DIALECT_PREFIX + ":data")) {
			element.removeAttribute(DataTablesDialect.DIALECT_PREFIX + ":data");
		}

		return ProcessorResult.OK;
	}
}