package org.gcube.portlets.user.td.codelistmappingimportwidget.client.grid;
import java.util.ArrayList;
import java.util.List;
import org.gcube.portlets.user.td.codelistmappingimportwidget.client.CodelistMappingMessages;
import org.gcube.portlets.user.td.codelistmappingimportwidget.client.ColumnSelectionCard;
import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTIsLockedException;
import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTSessionExpiredException;
import org.gcube.portlets.user.td.widgetcommonevent.client.CommonMessages;
import org.gcube.portlets.user.td.widgetcommonevent.client.event.SessionExpiredEvent;
import org.gcube.portlets.user.td.widgetcommonevent.client.type.SessionExpiredType;
import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
import org.gcube.portlets.user.td.widgetcommonevent.shared.tr.column.ColumnData;
import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.event.logical.shared.HasSelectionHandlers;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.sencha.gxt.core.client.IdentityValueProvider;
import com.sencha.gxt.core.client.Style.SelectionMode;
import com.sencha.gxt.core.client.dom.ScrollSupport.ScrollMode;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.data.client.loader.RpcProxy;
import com.sencha.gxt.data.shared.ListStore;
import com.sencha.gxt.data.shared.loader.ListLoadConfig;
import com.sencha.gxt.data.shared.loader.ListLoadResult;
import com.sencha.gxt.data.shared.loader.ListLoadResultBean;
import com.sencha.gxt.data.shared.loader.ListLoader;
import com.sencha.gxt.data.shared.loader.LoadResultListStoreBinding;
import com.sencha.gxt.widget.core.client.ContentPanel;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
import com.sencha.gxt.widget.core.client.grid.CheckBoxSelectionModel;
import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
import com.sencha.gxt.widget.core.client.grid.ColumnModel;
import com.sencha.gxt.widget.core.client.grid.Grid;
/**
*
* @author giancarlo
* email: g.panichi@isti.cnr.it
*
*/
public class ColumnDataGridPanel extends ContentPanel implements
HasSelectionHandlers {
private static final int GRIDHEIGHT = 360;
private static final ColumnDataProperties props = GWT
.create(ColumnDataProperties.class);
private CheckBoxSelectionModel sm;
private Grid grid;
private CodelistMappingMessages msgs;
private CommonMessages msgsCommon;
private TRId trId;
private ColumnSelectionCard parent;
public ColumnDataGridPanel(ColumnSelectionCard parent, TRId trId) {
Log.debug("ColumnDataGridPanel");
if (trId == null) {
Log.error("ColumnDataGridPanel: TRId is null");
}
Log.debug("ColumnDataGridPanel: " + trId.toString());
this.parent = parent;
this.trId = trId;
initMessages();
initPanel();
createPanel();
}
protected void initMessages(){
msgs = GWT.create(CodelistMappingMessages.class);
msgsCommon = GWT.create(CommonMessages.class);
}
protected void initPanel(){
setHeaderVisible(false);
// setHeadingText("Columns");
}
protected void createPanel() {
ColumnConfig labelColumn = new ColumnConfig(
props.label(), 120, msgs.labelColumn());
IdentityValueProvider identity = new IdentityValueProvider();
sm = new CheckBoxSelectionModel(identity);
List> l = new ArrayList>();
l.add(labelColumn);
ColumnModel cm = new ColumnModel(l);
ListStore store = new ListStore(props.id());
RpcProxy> proxy = new RpcProxy>() {
public void load(ListLoadConfig loadConfig,
final AsyncCallback> callback) {
loadData(loadConfig, callback);
}
};
final ListLoader> loader = new ListLoader>(
proxy);
loader.setRemoteSort(false);
loader.addLoadHandler(new LoadResultListStoreBinding>(
store) {
});
grid = new Grid(store, cm) {
@Override
protected void onAfterFirstAttach() {
super.onAfterFirstAttach();
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
public void execute() {
loader.load();
}
});
}
};
sm.setSelectionMode(SelectionMode.SINGLE);
grid.setLoader(loader);
grid.setSelectionModel(sm);
grid.setHeight(GRIDHEIGHT);
grid.getView().setStripeRows(true);
grid.getView().setColumnLines(true);
grid.getView().setAutoFill(true);
grid.setBorders(false);
grid.setLoadMask(true);
grid.setColumnReordering(true);
VerticalLayoutContainer con = new VerticalLayoutContainer();
con.setScrollMode(ScrollMode.AUTO);
con.add(grid, new VerticalLayoutData(-1, -1, new Margins(0)));
setWidget(con);
}
public Grid getGrid() {
return grid;
}
protected void loadData(ListLoadConfig loadConfig,
final AsyncCallback> callback) {
TDGWTServiceAsync.INSTANCE.getColumns(trId,
new AsyncCallback>() {
public void onFailure(Throwable caught) {
if (caught instanceof TDGWTSessionExpiredException) {
parent.getEventBus()
.fireEvent(
new SessionExpiredEvent(
SessionExpiredType.EXPIREDONSERVER));
} else {
if (caught instanceof TDGWTIsLockedException) {
Log.error(caught.getLocalizedMessage());
parent.showErrorAndHide(msgsCommon.errorLocked(),
caught.getLocalizedMessage(), "",
caught);
} else {
Log.error("No load columns: "
+ caught.getLocalizedMessage());
parent.showErrorAndHide(msgsCommon.error(),
msgs.errorNoLoadColumnsFixed(),
caught.getLocalizedMessage(), caught);
}
}
callback.onFailure(caught);
}
public void onSuccess(ArrayList result) {
Log.trace("loaded " + result.size() + " columns");
callback.onSuccess(new ListLoadResultBean(
result));
sm.selectAll();
forceLayout();
}
});
}
public ColumnData getSelectedItem() {
return grid.getSelectionModel().getSelectedItem();
}
public HandlerRegistration addSelectionHandler(
SelectionHandler handler) {
return grid.getSelectionModel().addSelectionHandler(handler);
}
}