AddFieldClickHandler.java

/*
 * Copyright 2012 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.drools.workbench.screens.testscenario.client;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.user.client.Command;
import org.drools.workbench.screens.testscenario.client.resources.i18n.TestScenarioConstants;
import org.kie.workbench.common.widgets.client.datamodel.AsyncPackageDataModelOracle;
import org.uberfire.ext.widgets.common.client.common.popups.FormStylePopup;
import org.uberfire.ext.widgets.common.client.common.popups.footers.ModalFooterOKCancelButtons;

abstract class AddFieldClickHandler
        implements SelectionHandler<String>,
                   ClickHandler {

    protected final AsyncPackageDataModelOracle oracle;
    protected final ScenarioParentWidget parent;

    public AddFieldClickHandler( final AsyncPackageDataModelOracle oracle,
                                 final ScenarioParentWidget parent ) {
        this.oracle = oracle;
        this.parent = parent;
    }

    @Override
    public void onClick( final ClickEvent event ) {
        final FormStylePopup pop = new FormStylePopup( TestScenarioConstants.INSTANCE.ChooseAFieldToAdd() );
        final FactFieldSelector selector = createAddNewField( pop );
        pop.addAttribute( TestScenarioConstants.INSTANCE.ChooseAFieldToAdd(),
                          selector );
        pop.add( new ModalFooterOKCancelButtons( new Command() {
            @Override
            public void execute() {
                SelectionEvent.fire( selector,
                                     selector.getSelectedText() );
            }
        }, new Command() {
            @Override
            public void execute() {
                pop.hide();
            }
        }
        ) );

        pop.show();
    }

    private FactFieldSelector createAddNewField( final FormStylePopup pop ) {
        FactFieldSelector factFieldSelector = createFactFieldSelector();

        factFieldSelector.addSelectionHandler( this );
        factFieldSelector.addSelectionHandler( new SelectionHandler<String>() {
            @Override
            public void onSelection( SelectionEvent<String> stringSelectionEvent ) {
                pop.hide();
                parent.renderEditor();
            }
        } );

        return factFieldSelector;
    }

    protected abstract FactFieldSelector createFactFieldSelector();

}