HTMLTableFactory.java

/*
 * Copyright 2011 cruxframework.org.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.cruxframework.crux.gwt.rebind;


import org.cruxframework.crux.core.client.utils.EscapeUtils;
import org.cruxframework.crux.core.rebind.AbstractProxyCreator.SourcePrinter;
import org.cruxframework.crux.core.rebind.CruxGeneratorException;
import org.cruxframework.crux.core.rebind.screen.widget.ViewFactoryCreator;
import org.cruxframework.crux.core.rebind.screen.widget.creator.HasClickHandlersFactory;
import org.cruxframework.crux.core.rebind.screen.widget.creator.HasDoubleClickHandlersFactory;
import org.cruxframework.crux.core.rebind.screen.widget.creator.align.AlignmentAttributeParser;
import org.cruxframework.crux.core.rebind.screen.widget.creator.align.HorizontalAlignment;
import org.cruxframework.crux.core.rebind.screen.widget.creator.align.VerticalAlignment;
import org.cruxframework.crux.core.rebind.screen.widget.creator.children.WidgetChildProcessor;
import org.cruxframework.crux.core.rebind.screen.widget.creator.children.WidgetChildProcessor.AnyWidget;
import org.cruxframework.crux.core.rebind.screen.widget.creator.children.WidgetChildProcessor.HTMLTag;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttribute;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributeDeclaration;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributes;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagAttributesDeclaration;
import org.cruxframework.crux.core.rebind.screen.widget.declarative.TagConstraints;

import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
import com.google.gwt.user.client.ui.HTMLTable.RowFormatter;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;


/**
 * @author Thiago da Rosa de Bustamante
 *
 */
@TagAttributes({
	@TagAttribute(value="borderWidth",type=Integer.class),
	@TagAttribute(value="cellPadding",type=Integer.class),
	@TagAttribute(value="cellSpacing",type=Integer.class)
})
public abstract class HTMLTableFactory <C extends HTMLTableFactoryContext> extends PanelFactory<C>
       implements HasClickHandlersFactory<C>, HasDoubleClickHandlersFactory<C>
{	
	@TagConstraints(tagName="row", minOccurs="0", maxOccurs="unbounded")
	@TagAttributesDeclaration({
		@TagAttributeDeclaration("styleName"),
		@TagAttributeDeclaration(value="visible", type=Boolean.class, defaultValue="true"),
		@TagAttributeDeclaration(value="verticalAlignment", type=VerticalAlignment.class)
	})
	public static class TableRowProcessor<C extends HTMLTableFactoryContext> extends WidgetChildProcessor<C>
	{
		@Override
		public void processChildren(SourcePrinter out, C context) throws CruxGeneratorException
		{
			context.rowIndex++;
			try
			{
				String styleName = context.readChildProperty("styleName");
				String rootWidget = context.getWidget();
				if (context.rowFormatter == null)
				{
					context.rowFormatter = ViewFactoryCreator.createVariableName("rowFormatter");
					out.println(RowFormatter.class.getCanonicalName() + " " + context.rowFormatter +" = "+rootWidget+".getRowFormatter();");
				}

				if (styleName != null && styleName.length() > 0)
				{
					out.println(context.rowFormatter+".setStyleName("+context.rowIndex+", "+getWidgetCreator().getResourceAccessExpression(styleName)+");");
				}
				String visible = context.readChildProperty("visible");
				if (visible != null && visible.length() > 0)
				{
					out.println(context.rowFormatter+".setVisible("+context.rowIndex+", "+Boolean.parseBoolean(visible)+");");
				}

				String verticalAlignment = context.readChildProperty("verticalAlignment");
				out.println(context.rowFormatter+".setVerticalAlign("+context.rowIndex+", "+
						AlignmentAttributeParser.getVerticalAlignment(verticalAlignment)+");");
			}
			finally
			{
				context.colIndex = -1;
			}
		}
	}

	@TagConstraints(minOccurs="0", maxOccurs="unbounded")
	@TagAttributesDeclaration({
		@TagAttributeDeclaration("styleName"),
		@TagAttributeDeclaration("width"),
		@TagAttributeDeclaration("height"),
		@TagAttributeDeclaration(value="visible", type=Boolean.class, defaultValue="true"),
		@TagAttributeDeclaration(value="wordWrap", type=Boolean.class, defaultValue="true"),
		@TagAttributeDeclaration(value="horizontalAlignment", type=HorizontalAlignment.class, defaultValue="defaultAlign"),
		@TagAttributeDeclaration(value="verticalAlignment", type=VerticalAlignment.class)
	})
	public static class TableCellProcessor<C extends HTMLTableFactoryContext> extends WidgetChildProcessor<C>
	{
		@Override
		public void processChildren(SourcePrinter out, C context) throws CruxGeneratorException
		{
			String widget = context.getWidget();

			context.colIndex++;
			String styleName = context.readChildProperty("styleName");
			
			if (context.cellFormatter == null)
			{
				context.cellFormatter = ViewFactoryCreator.createVariableName("cellFormatter");
				out.println(CellFormatter.class.getCanonicalName() + " " + context.cellFormatter +" = "+widget+".getCellFormatter();");
			}


			if (styleName != null && styleName.length() > 0)
			{
				out.println(context.cellFormatter+".setStyleName("+context.rowIndex+", "+context.colIndex+", "+getWidgetCreator().getResourceAccessExpression(styleName)+");");
			}
			String visible = context.readChildProperty("visible");
			if (visible != null && visible.length() > 0)
			{
				out.println(context.cellFormatter+".setVisible("+context.rowIndex+", "+context.colIndex+", "+Boolean.parseBoolean(visible)+");");
			}
			String height = context.readChildProperty("height");
			if (height != null && height.length() > 0)
			{
				out.println(context.cellFormatter+".setHeight("+context.rowIndex+", "+context.colIndex+", "+EscapeUtils.quote(height)+");");
			}
			String width = context.readChildProperty("width");
			if (width != null && width.length() > 0)
			{
				out.println(context.cellFormatter+".setWidth("+context.rowIndex+", "+context.colIndex+", "+EscapeUtils.quote(width)+");");
			}
			String wordWrap = context.readChildProperty("wordWrap");
			if (wordWrap != null && wordWrap.length() > 0)
			{
				out.println(context.cellFormatter+".setWordWrap("+context.rowIndex+", "+context.colIndex+", "+Boolean.parseBoolean(wordWrap)+");");
			}

			String horizontalAlignment = context.readChildProperty("horizontalAlignment");
			if (horizontalAlignment != null && horizontalAlignment.length() > 0)
			{
				out.println(context.cellFormatter+".setHorizontalAlignment("+context.rowIndex+", "+context.colIndex+", "+ 
						AlignmentAttributeParser.getHorizontalAlignment(horizontalAlignment, HasHorizontalAlignment.class.getCanonicalName()+".ALIGN_DEFAULT")+");");
			}
			String verticalAlignment = context.readChildProperty("verticalAlignment");
			if (verticalAlignment != null && verticalAlignment.length() > 0)
			{
				out.println(context.cellFormatter+".setVerticalAlignment("+context.rowIndex+", "+context.colIndex+", "+
						AlignmentAttributeParser.getVerticalAlignment(verticalAlignment)+");");
			}
		}
	}
	
	@TagConstraints(tagName="text", type=String.class)
	public static abstract class CellTextProcessor<C extends HTMLTableFactoryContext> extends WidgetChildProcessor<C>
	{
		@Override
		public void processChildren(SourcePrinter out, C context) throws CruxGeneratorException 
		{
			String rootWidget = context.getWidget();
			out.println(rootWidget+".setText("+context.rowIndex+", "+context.colIndex+", "+
					getWidgetCreator().ensureTextChild(context.getChildElement(), true, context.getWidgetId(), false)+");");
		}
	}
	
	@TagConstraints(tagName="html", type=HTMLTag.class)
	public static abstract class CellHTMLProcessor<C extends HTMLTableFactoryContext> extends WidgetChildProcessor<C>
	{
		@Override
		public void processChildren(SourcePrinter out, C context) throws CruxGeneratorException 
		{
			String rootWidget = context.getWidget();
			out.println(rootWidget+".setHTML("+context.rowIndex+", "+context.colIndex+", "+getWidgetCreator().
					ensureHtmlChild(context.getChildElement(), true, context.getWidgetId(), context)+");");
		}
	}
	
	@TagConstraints(tagName="widget")
	public static abstract class CellWidgetProcessor<C extends HTMLTableFactoryContext> extends WidgetChildProcessor<C> {}

	@TagConstraints(type=AnyWidget.class, autoProcessingEnabled=false)
	public static class WidgetProcessor<C extends HTMLTableFactoryContext> extends WidgetChildProcessor<C> 
	{
		@Override
		public void processChildren(SourcePrinter out, C context) throws CruxGeneratorException
		{
			String rootWidget = context.getWidget();
			String childWidget = getWidgetCreator().createChildWidget(out, context.getChildElement(), context);
			boolean childPartialSupport = getWidgetCreator().hasChildPartialSupport(context.getChildElement());
			if (childPartialSupport)
			{
				out.println("if ("+getWidgetCreator().getChildWidgetClassName(context.getChildElement())+".isSupported()){");
			}
			out.println(rootWidget+".setWidget("+context.rowIndex+", "+context.colIndex+", "+childWidget+");");
			if (childPartialSupport)
			{
				out.println("}");
			}
		}
	}
}