teichmann@5861: /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
teichmann@5861:  * Software engineering by Intevation GmbH
teichmann@5861:  *
teichmann@5993:  * This file is Free Software under the GNU AGPL (>=v3)
teichmann@5861:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
teichmann@5993:  * documentation coming with Dive4Elements River for details.
teichmann@5861:  */
teichmann@5861: 
teichmann@5835: package org.dive4elements.river.client.client.ui;
felix@899: 
gernotbelger@9133: import org.dive4elements.river.client.client.FLYSConstants;
gernotbelger@9133: import org.dive4elements.river.client.shared.model.ToLoad;
gernotbelger@9133: 
felix@899: import com.google.gwt.core.client.GWT;
christian@4567: import com.smartgwt.client.util.SC;
felix@899: import com.smartgwt.client.widgets.Button;
christian@4567: import com.smartgwt.client.widgets.events.ClickEvent;
christian@4182: import com.smartgwt.client.widgets.events.ClickHandler;
felix@899: import com.smartgwt.client.widgets.grid.ListGrid;
christian@4567: import com.smartgwt.client.widgets.layout.HLayout;
christian@4567: import com.smartgwt.client.widgets.layout.VLayout;
felix@899: 
felix@914: /**
ingo@3549:  * Widget showing two Datacages and a add-this-button.
ingo@3549:  * Insert a record into a listgrid when add-this-button clicked.
felix@914:  */
gernotbelger@9133: public class DatacagePairWidget extends VLayout {
gernotbelger@9227: 
gernotbelger@9227:     /**
gernotbelger@9227:      * Allows for advanced controlling of the behavior of this pair widget.
gernotbelger@9227:      */
gernotbelger@9227:     public static interface IDatacagePairControler {
gernotbelger@9227:         void setup(DatacageWidget leftWidget, DatacageWidget rightWidget, HLayout toolbarLayout);
gernotbelger@9227:     }
gernotbelger@9227: 
gernotbelger@9227:     /**
gernotbelger@9227:      * {@link IDatacagePairControler} implementation that does nothing.
gernotbelger@9227:      */
gernotbelger@9227:     public static final IDatacagePairControler NIL_CONTROLER = new IDatacagePairControler() {
gernotbelger@9227:         @Override
gernotbelger@9227:         public void setup(final DatacageWidget leftWidget, final DatacageWidget rightWidget, final HLayout toolbarLayout) {
gernotbelger@9227:             // does nothing
gernotbelger@9227:         }
gernotbelger@9227:     };
gernotbelger@9227: 
ingo@3549:     /** i18n resource. */
gernotbelger@9227:     private static final FLYSConstants MSG = GWT.create(FLYSConstants.class);
sascha@2905: 
felix@1284:     /** The "remote" ListGrid to insert data to when add-button is clicked. */
gernotbelger@9220:     private final ListGrid grid;
sascha@2905: 
felix@1284:     /** First (upper) DataCage Grid. */
gernotbelger@9220:     private final DatacageWidget firstDatacageWidget;
sascha@2905: 
felix@1284:     /** Second (lower) DataCage Grid. */
gernotbelger@9220:     private final DatacageWidget secondDatacageWidget;
felix@1298: 
gernotbelger@9133:     /** Max number of recommendation pairs to be added */
gernotbelger@9133:     private final int maxCount;
gernotbelger@9220: 
gernotbelger@9133:     /** errorMsg maxCount */
gernotbelger@9133:     private final String msgMaxCount;
sascha@2905: 
gernotbelger@9227:     public DatacagePairWidget(final IDatacagePairControler controler, final DatacageWidgetData leftData, final DatacageWidgetData rightData,
gernotbelger@9227:             final ListGrid grid, final int maxCount, final String msgMaxCount) {
gernotbelger@9227: 
gernotbelger@9133:         this.msgMaxCount = msgMaxCount;
gernotbelger@9133:         this.maxCount = maxCount;
felix@899:         this.grid = grid;
felix@899: 
gernotbelger@9133:         final HLayout hLayout = new HLayout();
gernotbelger@9220: 
gernotbelger@9220:         this.firstDatacageWidget = new DatacageWidget(leftData);
gernotbelger@9220:         this.secondDatacageWidget = new DatacageWidget(rightData);
gernotbelger@9220: 
gernotbelger@9133:         this.firstDatacageWidget.setIsMutliSelectable(false);
gernotbelger@9133:         this.secondDatacageWidget.setIsMutliSelectable(false);
felix@899: 
gernotbelger@9133:         hLayout.addMember(this.firstDatacageWidget);
gernotbelger@9133:         hLayout.addMember(this.secondDatacageWidget);
felix@899: 
gernotbelger@9227:         final HLayout toolbarLayout = new HLayout();
gernotbelger@9227:         toolbarLayout.setAutoHeight();
gernotbelger@9227: 
gernotbelger@9227:         final Button plusBtn = new Button(MSG.datacage_add_pair());
christian@3533:         plusBtn.setAutoFit(true);
felix@899:         plusBtn.addClickHandler(new ClickHandler() {
felix@899:             @Override
gernotbelger@9133:             public void onClick(final ClickEvent event) {
felix@899:                 plusClicked();
felix@899:             }
felix@899:         });
gernotbelger@9227:         toolbarLayout.addMember(plusBtn);
felix@899: 
felix@899:         addMember(hLayout);
gernotbelger@9227:         addMember(toolbarLayout);
gernotbelger@9227: 
gernotbelger@9227:         controler.setup(this.firstDatacageWidget, this.secondDatacageWidget, toolbarLayout);
felix@899:     }
felix@899: 
felix@899:     /**
felix@899:      * Callback for add-button.
felix@899:      * Fires to load for every selected element and handler.
felix@899:      */
gernotbelger@9227:     protected final void plusClicked() {
gernotbelger@9133:         final ToLoad toLoad1 = this.firstDatacageWidget.getSelection();
gernotbelger@9133:         final ToLoad toLoad2 = this.secondDatacageWidget.getSelection();
felix@899: 
gernotbelger@9220:         // FIXME: allows to select folders... but it should not
gernotbelger@9220: 
gernotbelger@9133:         if (toLoad1 == null || toLoad2 == null || toLoad1.toRecommendations().isEmpty() || toLoad2.toRecommendations().isEmpty()) {
gernotbelger@9227:             SC.say(MSG.warning_select_two_values());
gernotbelger@9133:             return;
gernotbelger@9133:         }
gernotbelger@9220: 
gernotbelger@9133:         if (this.grid.getTotalRows() >= this.maxCount) {
gernotbelger@9133:             SC.say(this.msgMaxCount);
felix@899:             return;
felix@899:         }
felix@899: 
gernotbelger@9133:         this.grid.addData(new RecommendationPairRecord(toLoad1.toRecommendations().get(0), toLoad2.toRecommendations().get(0)));
felix@899:     }
gernotbelger@9220: }