com.userweave.pages.components.slidableajaxtabpanel.addmethodpanel.AbstractAddPanel.java Source code

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Here is the source code for com.userweave.pages.components.slidableajaxtabpanel.addmethodpanel.AbstractAddPanel.java

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/*******************************************************************************
 * This file is part of UserWeave.
 *
 *     UserWeave is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Affero General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     UserWeave is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Affero General Public License for more details.
 *
 *     You should have received a copy of the GNU Affero General Public License
 *     along with UserWeave.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright 2012 User Prompt GmbH | Psychologic IT Expertise
 *******************************************************************************/
package com.userweave.pages.components.slidableajaxtabpanel.addmethodpanel;

import java.util.List;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.form.AjaxButton;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.markup.html.form.ListChoice;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.request.resource.PackageResourceReference;

import com.userweave.ajax.IAjaxUpdater;
import com.userweave.ajax.form.AjaxBehaviorFactory;
import com.userweave.pages.components.slidableajaxtabpanel.ChangeTabsCallback;

public abstract class AbstractAddPanel<T> extends Panel implements IAjaxUpdater {
    private static final long serialVersionUID = 1L;

    /**
     * Display for error messages.
     */
    private FeedbackPanel feedbackPanel;

    private final Label previewLegendLabel;

    private transient T selectedItem;

    protected T getSelectedItem() {
        return selectedItem;
    }

    private String name;

    private Image imagePreview;

    public AbstractAddPanel(String id, final List<T> choices, final ChangeTabsCallback callback) {
        super(id);

        try {
            selectedItem = choices.get(0);
        } catch (IndexOutOfBoundsException e) {
            selectedItem = null;
        }

        previewLegendLabel = new Label("preview_legend", getPreviewNameOnUpdate(selectedItem));

        ListChoice moduleChoice = new ListChoice("choices",
                new PropertyModel(AbstractAddPanel.this, "selectedItem"), choices, getChoiceRenderer());

        moduleChoice.add(AjaxBehaviorFactory.getUpdateBehavior("onclick", AbstractAddPanel.this));

        moduleChoice.setRequired(true);

        moduleChoice.setOutputMarkupId(true);

        init(moduleChoice, callback);
    }

    public AbstractAddPanel(String id, final IModel choices, final ChangeTabsCallback callback) {
        super(id);

        try {
            selectedItem = (T) ((List) choices.getObject()).get(0);
        } catch (IndexOutOfBoundsException e) {
            selectedItem = null;
        }

        previewLegendLabel = new Label("preview_legend", getPreviewNameOnUpdate(selectedItem));

        ListChoice moduleChoice = new ListChoice("choices",
                new PropertyModel(AbstractAddPanel.this, "selectedItem"), choices, getChoiceRenderer());

        moduleChoice.add(AjaxBehaviorFactory.getUpdateBehavior("onclick", AbstractAddPanel.this));

        moduleChoice.setRequired(true);

        moduleChoice.setOutputMarkupId(true);

        init(moduleChoice, callback);
    }

    private void init(ListChoice choices, final ChangeTabsCallback callback) {
        Form form = new Form("form");

        add(form);

        form.add(choices);

        imagePreview = new Image("previewImage",
                new PackageResourceReference(AbstractAddPanel.class, getImageResource(selectedItem)));

        imagePreview.setOutputMarkupId(true);

        form.add(imagePreview);

        final TextField methodName = new TextField("itemName", new PropertyModel(AbstractAddPanel.this, "name"));

        methodName.setRequired(true);

        methodName.setOutputMarkupId(true);

        form.add(methodName);

        form.add(new AjaxButton("create", form) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void onSubmit(AjaxRequestTarget target, Form form) {
                int position = createNewItem(selectedItem, name);

                callback.fireChange(target, position);
            }

            @Override
            protected void onError(AjaxRequestTarget target, Form form) {
                target.addComponent(feedbackPanel);
            }
        });

        previewLegendLabel.setOutputMarkupId(true);

        form.add(previewLegendLabel);

        add(feedbackPanel = new FeedbackPanel("feedback"));

        feedbackPanel.setOutputMarkupId(true);
    }

    //   private AjaxFormComponentUpdatingBehavior getChangeSelectionBehavior(String event)
    //   {
    //      return new AjaxFormComponentUpdatingBehavior(event)
    //      {
    //         private static final long serialVersionUID = 1L;
    //
    //         @Override
    //         protected void onUpdate(AjaxRequestTarget target)
    //         {
    //            previewLegendLabel.setModel(getPreviewNameOnUpdate(selectedItem));
    //            previewLegendLabel.modelChanged();
    //            
    //            replacePreviewImage(target);
    //            
    //            target.addComponent(previewLegendLabel);
    //         }
    //      };
    //   }

    @Override
    public void onUpdate(AjaxRequestTarget target) {
        previewLegendLabel.setDefaultModel(getPreviewNameOnUpdate(selectedItem));
        previewLegendLabel.modelChanged();

        replacePreviewImage(target);

        target.addComponent(previewLegendLabel);
    }

    private void replacePreviewImage(AjaxRequestTarget target) {
        Image replacement = new Image("previewImage",
                new PackageResourceReference(AbstractAddPanel.class, getImageResource(selectedItem)));

        replacement.setOutputMarkupId(true);

        imagePreview.replaceWith(replacement);

        imagePreview = replacement;

        target.addComponent(imagePreview);
    }

    protected abstract IModel getPreviewNameOnUpdate(T selectedItem);

    protected abstract String getImageResource(T selectedItem);

    protected abstract IChoiceRenderer getChoiceRenderer();

    protected abstract int createNewItem(T selectedItem, String name);

}