本文整理汇总了Java中com.vaadin.shared.ui.dd.VerticalDropLocation类的典型用法代码示例。如果您正苦于以下问题：Java VerticalDropLocation类的具体用法？Java VerticalDropLocation怎么用？Java VerticalDropLocation使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
VerticalDropLocation类属于com.vaadin.shared.ui.dd包，在下文中一共展示了VerticalDropLocation类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: drop
import com.vaadin.shared.ui.dd.VerticalDropLocation; //导入依赖的package包/类
@Override
public void drop(DragAndDropEvent event) {
final Transferable t = event.getTransferable();
AbstractSelect.AbstractSelectTargetDetails dropData = ((AbstractSelect.AbstractSelectTargetDetails) event.getTargetDetails());
Object sourceItemId = ((DataBoundTransferable) t).getItemId();
Object targetItemId = dropData.getItemIdOver();
VerticalDropLocation location = dropData.getDropLocation();
Item sourceItem = tree.getItem(sourceItemId);
NavNode sourceNode = (NavNode) sourceItem.getItemProperty("object").getValue();
Item targetItem = tree.getItem(targetItemId);
NavNode targetNode = (NavNode) targetItem.getItemProperty("object").getValue();
NavigationView.this.move(sourceNode, targetNode, location);
// Sorting goes as
// - If dropped ON (MIDDLE) a node, we preppend it as a child
// - If dropped on the TOP part of a node, we move/add it before the node
// - If dropped on the BOTTOM part of a node, we move/add it after the node if it has no children, or prepend it as a child if it has children
}
示例2: initTree
import com.vaadin.shared.ui.dd.VerticalDropLocation; //导入依赖的package包/类
private void initTree() {
this.setSizeFull();
this.setImmediate(true);
this.setSelectable(true);
this.addItemClickListener(this);
this.addContainerProperty("", String.class, null);
this.addContainerProperty(ACTIONS, HorizontalLayout.class, null );
this.addItem(new Object[] {TOOL, getActionLayout(false, false, TOOL)}, TOOL);
this.setItemDescriptionGenerator(new ItemDescriptionGenerator() {
private static final long serialVersionUID = -1913286695570843896L;
@Override
public String generateDescription(Component source, Object itemId,
Object propertyId) {
String description = "Show all ";
if(itemId.equals(TOOL))
description += "elements";
else if (itemId.equals(INPUTS))
description += "inputs";
else if (itemId.equals(OUTPUTS))
description += "outputs";
else if (itemId.equals(PARAMETERS))
description += "parameters";
else
return null;
return description;
}
});
this.setCollapsed(TOOL, false);
String[] rootToolElements = new String[] {INPUTS, OUTPUTS, PARAMETERS};
for(String element : rootToolElements) {
this.addItem(new Object[] {element, getActionLayout(true, false, element)}, element);
this.setParent(element, TOOL);
this.setCollapsed(element, false);
}
this.setDragMode(TableDragMode.ROW);
this.setDropHandler(new DropHandler() {
private static final long serialVersionUID = -4415321436294383112L;
@Override
public AcceptCriterion getAcceptCriterion() {
return new Or(Tree.TargetItemAllowsChildren.get(), new Not(VerticalLocationIs.MIDDLE));
}
@Override
public void drop(DragAndDropEvent event) {
final Transferable t = event.getTransferable();
if (t.getSourceComponent() != TreeToolEditor.this
|| !(t instanceof DataBoundTransferable)) {
return;
}
final AbstractSelectTargetDetails dropData = ((AbstractSelectTargetDetails) event.getTargetDetails());
final Object sourceItemId = ((DataBoundTransferable) t).getItemId();
final Object targetItemId = dropData.getItemIdOver();
final VerticalDropLocation location = dropData.getDropLocation();
moveNode(sourceItemId, targetItemId, location);
}
});
}
示例3: move
import com.vaadin.shared.ui.dd.VerticalDropLocation; //导入依赖的package包/类
public abstract void move(NavNode source, NavNode target, VerticalDropLocation location);