/*
* Copyright 2013-2016 consulo.io
*
* 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 consulo.web.gwtUI.client.ui;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.IsWidget;
import consulo.web.gwtUI.client.UIConverter;
import consulo.web.gwtUI.client.WebSocketProxy;
import consulo.web.gwtUI.client.ui.advancedGwt.ComboBoxSelectItem;
import consulo.web.gwtUI.shared.UIClientEvent;
import consulo.web.gwtUI.shared.UIClientEventType;
import consulo.web.gwtUI.shared.UIComponent;
import org.gwt.advanced.client.datamodel.ListModelEvent;
import org.gwt.advanced.client.datamodel.ListModelListener;
import org.jetbrains.annotations.NotNull;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author VISTALL
* @since 16-Jun-16
*/
public class GwtListBoxImpl extends FlowPanel implements InternalGwtComponentWithChildren, InternalGwtComponentWithListeners {
/**
* Item list with by index
*/
private WebSocketProxy myProxy;
private int mySelectedIndex = -1;
private List<ComboBoxSelectItem> myList = new ArrayList<ComboBoxSelectItem>();
private List<ListModelListener> myModelListeners = new ArrayList<ListModelListener>();
public GwtListBoxImpl() {
}
@Override
public void addChildren(WebSocketProxy proxy, List<UIComponent.Child> children) {
myProxy = proxy;
int i = 0;
for (UIComponent.Child child : children) {
final int index = i++;
final IsWidget widget = UIConverter.create(myProxy, child.getComponent());
final ComboBoxSelectItem comboBoxSelectItem = new ComboBoxSelectItem();
myList.add(comboBoxSelectItem);
comboBoxSelectItem.setWidth("100%");
comboBoxSelectItem.setWidget(widget);
comboBoxSelectItem.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
setSelectedIndex(index);
}
});
add(comboBoxSelectItem);
}
}
@Override
public void updateState(@NotNull Map<String, Serializable> map) {
final int size = (Integer)map.get("size");
setSelectedIndex((Integer)map.get("index"));
}
public void setSelectedIndex(int selectedIndex) {
mySelectedIndex = selectedIndex;
ComboBoxSelectItem target = selectedIndex == -1 ? null : myList.get(selectedIndex);
for (ComboBoxSelectItem selectItem : myList) {
if (selectItem == target) {
continue;
}
selectItem.getElement().getStyle().setBackgroundColor(null);
}
if (target != null) {
target.getElement().getStyle().setBackgroundColor("gray");
}
ListModelEvent event = new ListModelEvent(null, String.valueOf(selectedIndex), selectedIndex, ListModelEvent.SELECT_ITEM);
for (ListModelListener modelListener : myModelListeners) {
modelListener.onModelEvent(event);
}
}
@Override
public void setupListeners(final WebSocketProxy proxy, final long componentId) {
myModelListeners.add(new ListModelListener() {
@Override
public void onModelEvent(final ListModelEvent event) {
if (event.getType() == ListModelEvent.SELECT_ITEM) {
proxy.send(UIClientEventType.invokeEvent, new WebSocketProxy.Consumer<UIClientEvent>() {
@Override
public void consume(UIClientEvent clientEvent) {
Map<String, Serializable> vars = new HashMap<String, Serializable>();
vars.put("type", "select");
vars.put("componentId", componentId);
vars.put("index", event.getItemIndex());
clientEvent.setVariables(vars);
}
});
}
}
});
}
}