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/*
@ITMillApache2LicenseForJavaFiles@
*/
/**
*
*/
package com.vaadin.event.dd.acceptcriteria;
import com.vaadin.event.dd.DragAndDropEvent;
import com.vaadin.event.dd.TargetDetails;
import com.vaadin.terminal.PaintException;
import com.vaadin.terminal.PaintTarget;
import com.vaadin.terminal.gwt.client.ui.dd.VTargetDetailIs;
/**
* Criterion for checking if drop target details contains the specific property
* with the specific value. Currently only String values are supported.
*
* @since 6.3
*
* TODO add support for other basic data types that we support in UIDL.
*
*/
@ClientCriterion(VTargetDetailIs.class)
public class TargetDetailIs extends ClientSideCriterion {
private static final long serialVersionUID = 763165450054331246L;
private String propertyName;
private Object value;
/**
* Constructs a criterion which ensures that the value there is a value in
* {@link TargetDetails} that equals the reference value.
*
* @param dataFlavor
* the type of data to be checked
* @param value
* the reference value to which the drop target detail will be
* compared
*/
public TargetDetailIs(String dataFlavor, String value) {
propertyName = dataFlavor;
this.value = value;
}
public TargetDetailIs(String dataFlavor, Boolean true1) {
propertyName = dataFlavor;
value = true1;
}
@Override
public void paintContent(PaintTarget target) throws PaintException {
super.paintContent(target);
target.addAttribute("p", propertyName);
if (value instanceof Boolean) {
target.addAttribute("v", ((Boolean) value).booleanValue());
target.addAttribute("t", "b");
} else if (value instanceof String) {
target.addAttribute("v", (String) value);
}
}
public boolean accept(DragAndDropEvent dragEvent) {
Object data = dragEvent.getTargetDetails().getData(propertyName);
return value.equals(data);
}
@Override
protected String getIdentifier() {
// sub classes by default use VDropDetailEquals a client implementation
return TargetDetailIs.class.getCanonicalName();
}
}
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