package com.vaadin.tests.dd;
import java.util.Iterator;
import com.vaadin.event.Transferable;
import com.vaadin.event.TransferableImpl;
import com.vaadin.event.dd.DragAndDropEvent;
import com.vaadin.event.dd.DropHandler;
import com.vaadin.event.dd.DropTarget;
import com.vaadin.event.dd.TargetDetails;
import com.vaadin.event.dd.acceptcriteria.AcceptAll;
import com.vaadin.event.dd.acceptcriteria.AcceptCriterion;
import com.vaadin.tests.components.TestBase;
import com.vaadin.tests.util.TestUtils;
import com.vaadin.ui.Component;
import com.vaadin.ui.CssLayout;
import com.vaadin.ui.DragAndDropWrapper;
import com.vaadin.ui.Label;
import com.vaadin.ui.VerticalLayout;
public class ActiveDragSourceClassName extends TestBase {
private static final String GREENBOXES = ".greenblock {float:left; width:60px;height:60px;background: green !important; padding:0; margin:2px;-webkit-transition: width 0.3s ease-in-out;}";
private static final String HIDEDRAGSOURCE = ".v-active-drag-source { overflow:hidden; width:0px !important;}";
@Override
protected void setup() {
TestUtils.injectCSS(getMainWindow(), GREENBOXES + HIDEDRAGSOURCE);
VerticalLayout l = new VerticalLayout();
l.setWidth("400px");
l.setHeight("100px");
DragAndDropWrapper pane = new DragAndDropWrapper(cssLayout);
pane.setSizeFull();
l.addComponent(pane);
addComponent(l);
for (int i = 0; i < 4; i++) {
cssLayout.addComponent(new WrappedLabel("Block"));
}
}
static int count;
private CssLayout cssLayout = new CssLayout() {
};
class WrappedLabel extends DragAndDropWrapper {
private static final long serialVersionUID = 1L;
public WrappedLabel(String content) {
super(new Label(content + " c:" + ++count));
getCompositionRoot().setSizeUndefined();
setHeight("60px"); // FIXME custom component seems to be broken:
// can't set height with css only
setWidth("60px");
setDragStartMode(DragStartMode.WRAPPER);
addStyleName("greenblock");
}
@Override
public DropHandler getDropHandler() {
return dh;
}
}
private DropHandler dh = new DropHandler() {
@Override
public AcceptCriterion getAcceptCriterion() {
return AcceptAll.get();
}
@Override
public void drop(DragAndDropEvent dropEvent) {
Transferable transferable = dropEvent.getTransferable();
if (transferable instanceof TransferableImpl) {
TransferableImpl ct = (TransferableImpl) transferable;
Component sourceComponent = ct.getSourceComponent();
if (sourceComponent instanceof WrappedLabel) {
int index = 1;
Iterator<Component> componentIterator = cssLayout
.getComponentIterator();
Component next = componentIterator.next();
TargetDetails dropTargetData = dropEvent.getTargetDetails();
DropTarget target = dropTargetData.getTarget();
while (next != target) {
if (next != sourceComponent) {
index++;
}
next = componentIterator.next();
}
if (dropTargetData.getData("horizontalLocation").equals(
"LEFT")) {
index--;
if (index < 0) {
index = 0;
}
}
cssLayout.removeComponent(sourceComponent);
cssLayout.addComponent(sourceComponent, index);
}
}
}
};
@Override
protected String getDescription() {
return "It should be possible to style the source component during the drag.";
}
@Override
protected Integer getTicketNumber() {
return 6813;
}
}