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- /*
- * Copyright 2000-2016 Vaadin Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
- package com.vaadin.ui.dnd.event;
-
- import com.vaadin.shared.ui.dnd.DropEffect;
- import com.vaadin.shared.ui.dnd.EffectAllowed;
- import com.vaadin.ui.AbstractComponent;
- import com.vaadin.ui.Component;
- import com.vaadin.ui.dnd.DragSourceExtension;
- import com.vaadin.ui.dnd.DropTargetExtension;
-
- /**
- * HTML5 drag end event.
- *
- * @param <T>
- * Type of the component that was dragged.
- * @author Vaadin Ltd
- * @see DragSourceExtension#addDragEndListener(DragEndListener)
- * @since 8.1
- */
- public class DragEndEvent<T extends AbstractComponent> extends Component.Event {
- private final DropEffect dropEffect;
-
- /**
- * Creates a drag end event.
- *
- * @param source
- * Component that was dragged.
- * @param dropEffect
- * Drop effect from {@code DataTransfer.dropEffect} object.
- */
- public DragEndEvent(T source, DropEffect dropEffect) {
- super(source);
-
- this.dropEffect = dropEffect;
- }
-
- /**
- * Get drop effect of the dragend event. The value will be the desired
- * action, that is the dropEffect value of the last dragenter or dragover
- * event. The value depends on the effectAllowed parameter of the drag
- * source, the dropEffect parameter of the drop target, and its drag over
- * and drop criteria.
- * <p>
- * If the drop is not successful, the value will be {@code NONE}.
- * <p>
- * In case the desired drop effect is {@code MOVE}, the data being dragged
- * should be removed from the source.
- *
- * @return The {@code DataTransfer.dropEffect} parameter of the client side
- * dragend event.
- * @see DragSourceExtension#setEffectAllowed(EffectAllowed)
- * @see DropTargetExtension#setDropEffect(DropEffect)
- * @see DropTargetExtension#setDropCriteriaScript(String)
- */
- public DropEffect getDropEffect() {
- return dropEffect;
- }
-
- /**
- * Returns whether the drag event was cancelled. This is a shorthand for
- * {@code dropEffect == NONE}.
- *
- * @return {@code true} if the drop event was cancelled, {@code false}
- * otherwise.
- */
- public boolean isCanceled() {
- return getDropEffect() == DropEffect.NONE;
- }
-
- /**
- * Returns the drag source component where the dragend event occurred.
- *
- * @return Component which was dragged.
- */
- @Override
- @SuppressWarnings("unchecked")
- public T getComponent() {
- return (T) super.getComponent();
- }
- }
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