org.sakaiproject.profile2.tool.pages.panels.WallItemPostCommentPanel.java Source code

Introduction

Here is the source code for org.sakaiproject.profile2.tool.pages.panels.WallItemPostCommentPanel.java

Source

/**
 * Copyright (c) 2008-2012 The Sakai Foundation
 *
 * Licensed under the Educational Community 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.osedu.org/licenses/ECL-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.sakaiproject.profile2.tool.pages.panels;

import java.util.Date;

import org.apache.wicket.AttributeModifier;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.form.AjaxFallbackButton;
import org.apache.wicket.extensions.ajax.markup.html.IndicatingAjaxButton;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.TextArea;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.ResourceModel;
import org.apache.wicket.model.StringResourceModel;
import org.apache.wicket.spring.injection.annot.SpringBean;
import org.sakaiproject.profile2.logic.ProfileWallLogic;
import org.sakaiproject.profile2.logic.SakaiProxy;
import org.sakaiproject.profile2.model.WallItem;
import org.sakaiproject.profile2.model.WallItemComment;

/**
 * Panel for commenting on a wall item.
 * 
 * @author d.b.robinson@lancaster.ac.uk
 */
public class WallItemPostCommentPanel extends Panel {

    private static final long serialVersionUID = 1L;

    @SpringBean(name = "org.sakaiproject.profile2.logic.ProfileWallLogic")
    private ProfileWallLogic wallLogic;

    @SpringBean(name = "org.sakaiproject.profile2.logic.SakaiProxy")
    protected SakaiProxy sakaiProxy;

    public WallItemPostCommentPanel(String id, final String userUuid, final WallItem wallItem,
            final WallItemPanel wallItemPanel, final MyWallPanel myWallPanel) {

        super(id);

        String commentString = "";
        IModel<String> commentModel = new Model<String>(commentString);
        Form<String> form = new Form<String>("form", commentModel);
        form.setOutputMarkupId(true);
        add(form);

        // form submit feedback
        final Label formFeedback = new Label("formFeedback");
        formFeedback.setOutputMarkupPlaceholderTag(true);
        form.add(formFeedback);

        WebMarkupContainer commentContainer = new WebMarkupContainer("commentContainer");
        final TextArea<String> commentTextArea = new TextArea<String>("comment", commentModel);

        commentContainer.add(commentTextArea);

        form.add(commentContainer);

        IndicatingAjaxButton submitButton = new IndicatingAjaxButton("submit",
                new ResourceModel("button.wall.comment"), form) {
            private static final long serialVersionUID = 1L;

            protected void onSubmit(AjaxRequestTarget target, Form<?> form) {

                // don't allow empty posts
                if (null == form.getModelObject()) {
                    formFeedback.setVisible(true);
                    formFeedback.setDefaultModel(new ResourceModel("error.wall.comment.empty"));
                    formFeedback.add(new AttributeModifier("class", true, new Model<String>("alertMessage")));
                    target.add(formFeedback);
                    return;
                }

                // create and add comment to wall item
                WallItemComment wallItemComment = new WallItemComment();
                // always post as current user
                wallItemComment.setCreatorUuid(sakaiProxy.getCurrentUserId());
                wallItemComment.setDate(new Date());
                wallItemComment.setText(form.getModelObject().toString());
                wallItemComment.setWallItem(wallItem);
                wallItem.addComment(wallItemComment);

                // update wall item
                if (false == wallLogic.addNewCommentToWallItem(wallItemComment)) {
                    formFeedback.setVisible(true);
                    formFeedback.setDefaultModel(new ResourceModel("error.wall.comment.failed"));
                    formFeedback.add(new AttributeModifier("class", true, new Model<String>("alertMessage")));
                    target.add(formFeedback);
                    return;
                }

                // replace wall item panel now comment has been added
                WallItemPanel newPanel = new WallItemPanel(wallItemPanel.getId(), userUuid, wallItem, myWallPanel);
                newPanel.setOutputMarkupId(true);
                wallItemPanel.replaceWith(newPanel);
                if (null != target) {
                    target.add(newPanel);
                    target.appendJavaScript("setMainFrameHeight(window.name);");
                }
            }
        };
        //submitButton.add(new FocusOnLoadBehaviour());

        AttributeModifier accessibilityLabel = new AttributeModifier("title", true,
                new StringResourceModel("accessibility.wall.comment", null,
                        new Object[] { sakaiProxy.getUserDisplayName(wallItem.getCreatorUuid()) }));

        submitButton.add(accessibilityLabel);
        form.add(submitButton);

        AjaxFallbackButton cancelButton = new AjaxFallbackButton("cancel", new ResourceModel("button.cancel"),
                form) {
            private static final long serialVersionUID = 1L;

            protected void onSubmit(AjaxRequestTarget target, Form<?> form) {
                commentTextArea.clearInput();
                formFeedback.setVisible(false);
                target.appendJavaScript("$('#" + WallItemPostCommentPanel.this.getMarkupId() + "').slideUp();");
            }
        };

        cancelButton.setDefaultFormProcessing(false);
        form.add(cancelButton);
    }

}