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| package org.apache.tapestry.wml; |
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| import org.apache.hivemind.ApplicationRuntimeException; |
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| import org.apache.hivemind.HiveMind; |
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| import org.apache.tapestry.AbstractComponent; |
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| import org.apache.tapestry.IMarkupWriter; |
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| import org.apache.tapestry.IRequestCycle; |
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| import org.apache.tapestry.Tapestry; |
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| public abstract class Select extends AbstractComponent |
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| { |
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| private final static String ATTRIBUTE_NAME = "org.apache.tapestry.active.Select"; |
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| protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle)
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| { |
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| if (cycle.getAttribute(ATTRIBUTE_NAME) != null)
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| throw new ApplicationRuntimeException(Tapestry.getMessage("Select.may-not-nest"), this,
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| null, null); |
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| cycle.setAttribute(ATTRIBUTE_NAME, this);
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| boolean render = !cycle.isRewinding();
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| if (render)
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| { |
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| writer.begin("select");
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| writer.attribute("name", getName());
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| String value = getValue();
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| if (HiveMind.isNonBlank(value))
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| writer.attribute("value", value);
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| String title = getTitle();
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| if (HiveMind.isNonBlank(title))
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| writer.attribute("title", title);
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| boolean multiple = isMultiple();
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| if (multiple)
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| writer.attribute("multiple", multiple);
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| renderInformalParameters(writer, cycle);
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| } |
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| renderBody(writer, cycle);
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| if (render)
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| { |
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| writer.end();
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| } |
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| cycle.removeAttribute(ATTRIBUTE_NAME);
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| } |
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| public abstract boolean isMultiple(); |
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| public abstract String getName(); |
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| public abstract String getValue(); |
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| public abstract String getTitle(); |
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| } |