Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.wiquery.plugin.antilia.grid; import java.io.Serializable; import org.apache.wicket.AttributeModifier; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.model.AbstractReadOnlyModel; import org.apache.wicket.model.Model; import org.odlabs.wiquery.ui.draggable.DraggableBehavior; import org.odlabs.wiquery.ui.draggable.DraggableContainment; import org.odlabs.wiquery.ui.draggable.DraggableRevert; import org.odlabs.wiquery.ui.draggable.DraggableSnap; import org.odlabs.wiquery.ui.draggable.DraggableRevert.RevertEnum; import org.odlabs.wiquery.ui.droppable.DroppableAccept; import org.odlabs.wiquery.ui.droppable.DroppableAjaxBehavior; import com.wiquery.plugin.antilia.util.RequestUtils; /** * * @author Ernesto Reinaldo Barreiro (reiern70@gmail.com) */ public abstract class DraggableTitle<E extends Serializable> extends WebMarkupContainer { private static final long serialVersionUID = 1L; private int column; /** * @param id */ public DraggableTitle(String id, int column) { super(id); this.column = column; //WebClientInfo clinetInfo = (WebClientInfo)WebSession.get().getClientInfo(); // if browser is not IE allow dragging columns headers. DraggableBehavior draggableBehavior = new DraggableBehavior(); draggableBehavior.setRevert(new DraggableRevert(RevertEnum.INVALID)); draggableBehavior.setContainment(new DraggableContainment("'#" + getTable().getMarkupId() + "_tTH'")); draggableBehavior.setZIndex(100); draggableBehavior.setSnap(new DraggableSnap(true)); add(draggableBehavior); DroppableAjaxBehavior<DraggableTitle<E>> droppableAjaxBehavior = new DroppableAjaxBehavior<DraggableTitle<E>>() { private static final long serialVersionUID = 1L; @Override public void onDrop(DraggableTitle<E> droppedComponent, AjaxRequestTarget ajaxRequestTarget) { DraggableTitle<?> droppedTitle = (DraggableTitle<?>) droppedComponent; int dropped = droppedTitle.getColumn() - 1; int before = DraggableTitle.this.getColumn() - 1; DraggableTitle.this.getTable().getTableModel().moveColumnBefore(dropped, before); ajaxRequestTarget.addComponent(DraggableTitle.this.getTable().getUpdatableComponent()); } }; droppableAjaxBehavior.getDroppableBehavior().setAccept(new DroppableAccept("." + getTable().getMarkupId())); droppableAjaxBehavior.getDroppableBehavior().setHoverClass("ui-state-highlight dropHover"); droppableAjaxBehavior.getDroppableBehavior().setActiveClass("dropActive"); add(droppableAjaxBehavior); add(new AttributeModifier("style", new AbstractReadOnlyModel<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { if (RequestUtils.isBrowserIeExplorer6()) return "border: none; overflow: hidden;"; return "border: 1px solid transparent; overflow: hidden;"; } })); add(new AttributeModifier("id", new Model<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { return DraggableTitle.this.getMarkupId(); } })); add(new AttributeModifier("class", new Model<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { return getTable().getMarkupId() + " ui-state-default"; } })); add(new AttributeModifier("onmouseover", new Model<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { return "if(this.className.indexOf('dragging')<0){this.className='" + getTable().getMarkupId() + " ui-state-default ui-state-hover';};"; } })); add(new AttributeModifier("onmouseout", new Model<String>() { private static final long serialVersionUID = 1L; @Override public String getObject() { return "if(this.className.indexOf('dragging')<0){this.className='" + getTable().getMarkupId() + " defaultHeaderOver ui-state-default';};"; } })); } @Override public String getMarkupId() { return getTable().getMarkupId() + "_dragger_" + getTable().getRendringCount() + "_" + getColumn(); } protected abstract Table<E> getTable(); public int getColumn() { return column; } }