package com.vaadin.tests.dd;
import java.util.Iterator;
import com.vaadin.event.dd.DragAndDropEvent;
import com.vaadin.event.dd.DropHandler;
import com.vaadin.event.dd.DropTarget;
import com.vaadin.event.dd.acceptcriteria.AcceptAll;
import com.vaadin.event.dd.acceptcriteria.AcceptCriterion;
import com.vaadin.tests.components.TestBase;
import com.vaadin.ui.Component;
import com.vaadin.ui.CssLayout;
import com.vaadin.ui.DragAndDropWrapper;
import com.vaadin.ui.DragAndDropWrapper.DragStartMode;
import com.vaadin.ui.DragAndDropWrapper.WrapperTransferable;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
public class DDTest5 extends TestBase {
java.util.Random r = new java.util.Random(1);
HorizontalLayout hl = new HorizontalLayout();
private DragAndDropWrapper dragAndDropWrapper2;
private DropHandler dh;
private static int count;
class WrappedLabel extends DragAndDropWrapper {
private static final long serialVersionUID = 1L;
public WrappedLabel(String content) {
super(new Label(content + " c:" + ++count));
setDragStartMode(DragStartMode.WRAPPER);
}
@Override
public DropHandler getDropHandler() {
return dh;
}
}
@Override
protected void setup() {
UI w = getLayout().getUI();
HorizontalSortableCssLayoutWithWrappers verticalSortableCssLayoutWithWrappers = new HorizontalSortableCssLayoutWithWrappers();
w.addWindow(verticalSortableCssLayoutWithWrappers);
verticalSortableCssLayoutWithWrappers.setPositionX(200);
verticalSortableCssLayoutWithWrappers.setPositionY(40); /*
* FIXME:
* subwindow
* horizontal
* position does
* not work if
* only x set
*/
Label l;
l = new Label("Drag me");
DragAndDropWrapper dragAndDropWrapper = new DragAndDropWrapper(l);
dragAndDropWrapper.setDragStartMode(DragStartMode.COMPONENT);
dragAndDropWrapper.setWidth("100px");
dragAndDropWrapper.setHeight("100px");
getLayout().addComponent(dragAndDropWrapper);
l = new Label("Drag me too");
dragAndDropWrapper = new DragAndDropWrapper(l);
dragAndDropWrapper.setDragStartMode(DragStartMode.WRAPPER);
dragAndDropWrapper.setWidth("100px");
dragAndDropWrapper.setHeight("100px");
getLayout().addComponent(dragAndDropWrapper);
final CssLayout cssLayout = new CssLayout();
cssLayout.setHeight("300px");
dragAndDropWrapper2 = new DragAndDropWrapper(cssLayout);
dragAndDropWrapper2
.setCaption("Drop here or sort with dd (wrapper(csslayout(n*wrapper(label))))");
dh = new DropHandler() {
@Override
public AcceptCriterion getAcceptCriterion() {
return AcceptAll.get();
}
@Override
public void drop(DragAndDropEvent dropEvent) {
/*
* TODO wrap componentns in wrappers (so we can build reordering
* here)
*/
if (dropEvent.getTransferable() instanceof WrapperTransferable) {
WrapperTransferable transferable = (WrapperTransferable) dropEvent
.getTransferable();
Component sourceComponent = transferable
.getSourceComponent();
Component draggedComponent = transferable
.getDraggedComponent();
DropTarget target = dropEvent.getTargetDetails()
.getTarget();
WrappedLabel wrappedLabel = new WrappedLabel(
draggedComponent.toString());
if (target instanceof WrappedLabel) {
int i = 1; // add next to reference by default
Iterator<Component> componentIterator = cssLayout
.getComponentIterator();
Component next = componentIterator.next();
while (next != target && componentIterator.hasNext()) {
if (next != sourceComponent) {
// don't count on index if component is being
// moved
i++;
}
next = componentIterator.next();
}
if (sourceComponent instanceof WrappedLabel) {
cssLayout.removeComponent(sourceComponent);
wrappedLabel = (WrappedLabel) sourceComponent;
}
if (dropEvent.getTargetDetails()
.getData("verticalLocation").equals("TOP")) {
// before reference if dropped on topmost part
i--;
if (i < 0) {
i = 0;
}
}
cssLayout.addComponent(wrappedLabel, i);
} else {
cssLayout.addComponent(wrappedLabel);
}
} else {
// no component, add label with "Text"
String data = (String) dropEvent.getTransferable().getData(
"text/plain");
if (data == null || "".equals(data)) {
data = "-- no Text --";
}
cssLayout.addComponent(new WrappedLabel(data));
}
}
};
dragAndDropWrapper2.setDropHandler(dh);
getLayout().addComponent(dragAndDropWrapper2);
}
@Override
protected String getDescription() {
return "dd: DragAndDropWrapper to build various use cases completely on server side";
}
@Override
protected Integer getTicketNumber() {
return 119;
}
}