Minor Update
git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/tabular-data-column-widget@91292 82a268e6-3cf1-43bd-a215-b396298e98cf
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package org.gcube.portlets.user.td.columnwidget.client;
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import java.util.ArrayList;
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import org.gcube.portlets.user.td.columnwidget.client.properties.ColumnDataProperties;
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import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
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import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
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import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
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import com.allen_sauer.gwt.log.client.Log;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.core.client.Scheduler;
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import com.google.gwt.core.client.Scheduler.ScheduledCommand;
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import com.google.gwt.event.logical.shared.SelectionEvent;
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import com.google.gwt.event.logical.shared.SelectionHandler;
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import com.google.gwt.event.logical.shared.ValueChangeEvent;
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import com.google.gwt.event.logical.shared.ValueChangeHandler;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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import com.sencha.gxt.cell.core.client.form.ComboBoxCell.TriggerAction;
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import com.sencha.gxt.data.client.loader.RpcProxy;
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import com.sencha.gxt.data.shared.LabelProvider;
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import com.sencha.gxt.data.shared.ListStore;
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import com.sencha.gxt.data.shared.loader.ListLoadConfig;
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import com.sencha.gxt.data.shared.loader.ListLoadResult;
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import com.sencha.gxt.data.shared.loader.ListLoadResultBean;
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import com.sencha.gxt.data.shared.loader.ListLoader;
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import com.sencha.gxt.data.shared.loader.LoadResultListStoreBinding;
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import com.sencha.gxt.widget.core.client.FramedPanel;
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import com.sencha.gxt.widget.core.client.Window;
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import com.sencha.gxt.widget.core.client.button.TextButton;
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import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
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import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
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import com.sencha.gxt.widget.core.client.form.ComboBox;
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import com.sencha.gxt.widget.core.client.form.FieldLabel;
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import com.sencha.gxt.widget.core.client.info.Info;
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/**
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*
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*
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* @author "Giancarlo Panichi"
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* <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
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*
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*/
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public class ChangeToAnnotationColumnDialog extends Window {
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protected int WIDTH=400;
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protected int HEIGHT=120;
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protected TRId trId;
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protected ComboBox<ColumnData> combo=null;
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protected String columnName=null;
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public ChangeToAnnotationColumnDialog(TRId trId) {
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create(trId, null);
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}
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public ChangeToAnnotationColumnDialog(TRId trId, String columnName) {
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create(trId, columnName);
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}
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protected void create(TRId trId, String columnName) {
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this.trId=trId;
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this.columnName=columnName;
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setBodyBorder(false);
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// getHeader().setIcon(Resources.IMAGES.side_list());
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setHeadingText("Change To Annotation Column");
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setWidth(WIDTH);
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setHeight(HEIGHT);
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setResizable(false);
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FramedPanel panel=new FramedPanel();
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panel.setHeaderVisible(false);
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panel.setBodyBorder(false);
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VerticalLayoutContainer v = new VerticalLayoutContainer();
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ColumnDataProperties props = GWT.create(ColumnDataProperties.class);
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ListStore<ColumnData> store = new ListStore<ColumnData>(props.id());
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Log.trace("Store created");
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RpcProxy<ListLoadConfig, ListLoadResult<ColumnData>> proxy = new RpcProxy<ListLoadConfig, ListLoadResult<ColumnData>>() {
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public void load(ListLoadConfig loadConfig, final AsyncCallback<ListLoadResult<ColumnData>> callback) {
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loadData(loadConfig, callback);
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}
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};
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final ListLoader<ListLoadConfig, ListLoadResult<ColumnData>> loader = new ListLoader<ListLoadConfig, ListLoadResult<ColumnData>>(proxy);
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loader.setRemoteSort(false);
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loader.addLoadHandler(new LoadResultListStoreBinding<ListLoadConfig, ColumnData, ListLoadResult<ColumnData>>(store));
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Log.trace("Loader created");
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combo = new ComboBox<ColumnData>(store,
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props.label()){
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@Override
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protected void onAfterFirstAttach() {
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super.onAfterFirstAttach();
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Scheduler.get().scheduleDeferred(new ScheduledCommand() {
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public void execute() {
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loader.load();
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}
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});
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}
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};
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Log.trace("Combo created");
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addHandlersForEventObservation(combo, props.label());
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combo.setEmptyText("Select a column...");
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combo.setWidth(150);
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combo.setTypeAhead(true);
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combo.setTriggerAction(TriggerAction.ALL);
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combo.setLoader(loader);
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v.add(new FieldLabel(combo, "Column"), new VerticalLayoutData(1, -1));
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panel.add(v);
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panel.addButton(new TextButton("Change"));
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add(panel);
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}
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private <T> void addHandlersForEventObservation(ComboBox<T> combo,
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final LabelProvider<T> labelProvider) {
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combo.addValueChangeHandler(new ValueChangeHandler<T>() {
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public void onValueChange(ValueChangeEvent<T> event) {
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Info.display(
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"Value Changed",
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"New value: "
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+ (event.getValue() == null ? "nothing"
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: labelProvider.getLabel(event
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.getValue()) + "!"));
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}
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});
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combo.addSelectionHandler(new SelectionHandler<T>() {
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public void onSelection(SelectionEvent<T> event) {
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Info.display(
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"State Selected",
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"You selected "
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+ (event.getSelectedItem() == null ? "nothing"
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: labelProvider.getLabel(event
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.getSelectedItem()) + "!"));
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}
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});
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}
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protected void loadData(ListLoadConfig loadConfig,
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final AsyncCallback<ListLoadResult<ColumnData>> callback) {
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TDGWTServiceAsync.INSTANCE.getColumns(trId, new AsyncCallback<ArrayList<ColumnData>>(){
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public void onFailure(Throwable caught) {
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Log.error("load combo failure:"+caught.getLocalizedMessage());
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callback.onFailure(caught);
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}
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public void onSuccess(ArrayList<ColumnData> result) {
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Log.trace("loaded " + result.size() + " ColumnData");
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if(columnName!=null){
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for(ColumnData cd: result){
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if(cd.getName().compareTo(columnName)==0){
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combo.setValue(cd);
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}
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}
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}
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callback.onSuccess(new ListLoadResultBean<ColumnData>(
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result));
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}
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});
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}
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}
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