/**
    * This file Copyright (c) 2012-2015 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.dialog.choosedialog;
  
  import info.magnolia.cms.i18n.I18nContentSupport;
  import info.magnolia.i18nsystem.I18nizer;
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.objectfactory.ComponentProvider;
  import info.magnolia.ui.api.app.ChooseDialogCallback;
  import info.magnolia.ui.api.context.UiContext;
  import info.magnolia.ui.api.overlay.OverlayCloser;
  import info.magnolia.ui.api.view.View;
  import info.magnolia.ui.dialog.BaseDialogPresenter;
  import info.magnolia.ui.dialog.DialogCloseHandler;
  import info.magnolia.ui.dialog.DialogView;
  import info.magnolia.ui.dialog.actionarea.DialogActionExecutor;
  import info.magnolia.ui.dialog.definition.ChooseDialogDefinition;
  import info.magnolia.ui.dialog.definition.DialogDefinition;
  import info.magnolia.ui.form.field.factory.FieldFactory;
  import info.magnolia.ui.form.field.factory.FieldFactoryFactory;
  import info.magnolia.ui.vaadin.integration.NullItem;
  import info.magnolia.ui.vaadin.integration.contentconnector.ContentConnector;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import javax.inject.Inject;
  
  import org.apache.commons.lang3.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.data.Item;
  import com.vaadin.data.Property.ValueChangeEvent;
  import com.vaadin.data.Property.ValueChangeListener;
  import com.vaadin.ui.AbstractComponent;
  import com.vaadin.ui.Component;
  import com.vaadin.ui.Field;
  
  /**
   * Factory for creating workbench choose dialog presenters.
   */
  public class ChooseDialogPresenterImpl extends BaseDialogPresenter implements ChooseDialogPresenter {
  
      private static final Logger log = LoggerFactory.getLogger(ChooseDialogPresenterImpl.class);
  
      private FieldFactoryFactory fieldFactoryFactory;
  
      private I18nContentSupport i18nContentSupport;
  
      private ContentConnector contentConnector;
  
      private Object chosenItemId;
  
      private ChooseDialogCallback callback;
  
      private boolean isExecutingAction;
  
      private Field<Object> field;
  
      @Inject
      public ChooseDialogPresenterImpl(
              FieldFactoryFactory fieldFactoryFactory,
              ComponentProvider componentProvider,
              I18nContentSupport i18nContentSupport,
              DialogActionExecutor executor,
              ChooseDialogView view,
              I18nizer i18nizer,
             SimpleTranslator i18n,
             ContentConnector contentConnector) {
         super(componentProvider, executor, view, i18nizer, i18n);
         this.fieldFactoryFactory = fieldFactoryFactory;
         this.contentConnector = contentConnector;
         this.componentProvider = componentProvider;
         this.i18nContentSupport = i18nContentSupport;
     }
 
     @Override
     public ChooseDialogView start(DialogDefinition definition, UiContext uiContext) {
         getExecutor().setDialogDefinition(definition);
         return (ChooseDialogView) super.start(definition, uiContext);
     }
 
     @Override
     public ChooseDialogView start(ChooseDialogCallback callback, ChooseDialogDefinition definition, UiContext appContext, String selectedItemId) {
         start(definition, appContext);
         this.callback = callback;
 
         // Additional close handler to check for cases when the dialog isn't closed from an action (shortcut, dialog close icon), and process callback accordingly
         if (callback != null) {
             getView().addDialogCloseHandler(new DialogCloseHandler() {
 
                 @Override
                 public void onDialogClose(DialogView dialogView) {
                     if (!isExecutingAction) {
                         ChooseDialogPresenterImpl.this.callback.onCancel();
                     }
                 }
             });
         }
 
         final FieldFactory formField = fieldFactoryFactory.createFieldFactory(definition.getField(), new NullItem());
         formField.setComponentProvider(componentProvider);
         this.field = (Field<Object>) formField.createField();
         if (field instanceof AbstractComponent) {
             ((AbstractComponent) field).setImmediate(true);
         }
         field.addValueChangeListener(new ValueChangeListener() {
             @Override
             public void valueChange(ValueChangeEvent event) {
                 chosenItemId = event.getProperty().getValue();
             }
         });
         getView().setCaption(definition.getLabel());
         getView().setContent(new View() {
             @Override
             public Component asVaadinComponent() {
                 return field;
             }
         });
 
         if (StringUtils.isNotBlank(selectedItemId)) {
             Object itemId = contentConnector.getItemIdByUrlFragment(selectedItemId);
             if (itemId != null) {
                 field.setValue(itemId);
             }
         }
 
         final OverlayCloser closer = appContext.openOverlay(getView(), getView().getModalityLevel());
         getView().setCaption(definition.getLabel());
         getView().addDialogCloseHandler(new DialogCloseHandler() {
             @Override
             public void onDialogClose(DialogView dialogView) {
                 closer.close();
             }
         });
         getView().setClosable(true);
         return getView();
     }
 
     @Override
     public ChooseDialogView getView() {
         return (ChooseDialogView) super.getView();
     }
 
     @Override
     public Object[] getActionParameters(String actionName) {
         Set<Object> selected = new HashSet<Object>();
         if (chosenItemId == null) {
             chosenItemId = contentConnector.getDefaultItemId();
         }
         selected.add(chosenItemId);
         Item item = contentConnector.getItem(chosenItemId);
         return new Object[] { actionName, item, ChooseDialogPresenterImpl.this, field, getView(), callback, selected };
     }
 
     @Override
     protected void executeAction(String actionName, Object[] actionContextParams) {
         isExecutingAction = true;
         super.executeAction(actionName, actionContextParams);
         isExecutingAction = false;
     }
 
     @Override
     protected DialogActionExecutor getExecutor() {
         return (DialogActionExecutor) super.getExecutor();
     }
 }