package org.gcube.portlets.user.td.jsonexportwidget.client.grid;
import java.util.ArrayList;
import java.util.List;
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.gwtservice.shared.tr.ColumnData;
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.wizardwidget.client.WizardCard;
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 String GRID_WIDTH ="524px";
private static final String GRID_HEIGHT = "280px";
protected static final ColumnDataProperties props = GWT
.create(ColumnDataProperties.class);
protected final CheckBoxSelectionModel sm;
protected final Grid grid;
private WizardCard parent;
/**
*
* @param parent
*/
public ColumnDataGridPanel(WizardCard parent) {
this.parent=parent;
Log.debug("ColumnDataGridPanel");
setHeadingText("Columns");
ColumnConfig labelCol = new ColumnConfig(
props.label());
IdentityValueProvider identity = new IdentityValueProvider();
sm = new CheckBoxSelectionModel(identity);
List> l = new ArrayList>();
l.add(sm.getColumn());
l.add(labelCol);
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.MULTI);
grid.setLoader(loader);
grid.setSelectionModel(sm);
grid.setHeight(GRID_HEIGHT);
//grid.setWidth(GRID_WIDTH);
// grid.getView().setAutoExpandColumn(labelCol);
grid.getView().setStripeRows(true);
grid.getView().setColumnLines(true);
grid.getView().setAutoFill(true);
grid.setBorders(false);
grid.setLoadMask(true);
grid.setColumnReordering(false);
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(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("Error Locked",
caught.getLocalizedMessage(), caught);
} else {
Log.error("No load columns: "
+ caught.getLocalizedMessage());
}
}
callback.onFailure(caught);
}
public void onSuccess(ArrayList result) {
Log.trace("loaded " + result.size() + " columns");
callback.onSuccess(new ListLoadResultBean(
result));
sm.selectAll();
forceLayout();
}
});
}
public ArrayList getSelectedItems() {
return new ArrayList(grid.getSelectionModel()
.getSelectedItems());
}
public HandlerRegistration addSelectionHandler(
SelectionHandler handler) {
return grid.getSelectionModel().addSelectionHandler(handler);
}
}