Java tutorial
/** * 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.windows; 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.modal.ModalWindow; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.markup.html.panel.Panel; 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.ProfileConnectionsLogic; import org.sakaiproject.profile2.logic.ProfilePreferencesLogic; import org.sakaiproject.profile2.logic.ProfilePrivacyLogic; import org.sakaiproject.profile2.logic.SakaiProxy; import org.sakaiproject.profile2.model.ProfilePreferences; import org.sakaiproject.profile2.model.ProfilePrivacy; import org.sakaiproject.profile2.tool.components.ProfileImage; import org.sakaiproject.profile2.tool.models.FriendAction; import org.sakaiproject.profile2.util.ProfileConstants; import org.sakaiproject.util.FormattedText; public class AddFriend extends Panel { private static final long serialVersionUID = 1L; @SpringBean(name = "org.sakaiproject.profile2.logic.SakaiProxy") private SakaiProxy sakaiProxy; @SpringBean(name = "org.sakaiproject.profile2.logic.ProfilePreferencesLogic") private ProfilePreferencesLogic preferencesLogic; @SpringBean(name = "org.sakaiproject.profile2.logic.ProfilePrivacyLogic") private ProfilePrivacyLogic privacyLogic; @SpringBean(name = "org.sakaiproject.profile2.logic.ProfileConnectionsLogic") private ProfileConnectionsLogic connectionsLogic; /* * userX is the current user * userY is the user to add */ public AddFriend(String id, final ModalWindow window, final FriendAction friendActionModel, final String userX, final String userY) { super(id); //get friendName final String friendName = FormattedText.processFormattedText(sakaiProxy.getUserDisplayName(userY), new StringBuffer()); //window setup window.setTitle(new StringResourceModel("title.friend.add", null, new Object[] { friendName })); window.setInitialHeight(150); window.setInitialWidth(500); window.setResizable(false); //prefs and privacy ProfilePreferences prefs = preferencesLogic.getPreferencesRecordForUser(userY); ProfilePrivacy privacy = privacyLogic.getPrivacyRecordForUser(userY); //image ProfileImage image = new ProfileImage("image", new Model<String>(userY)); image.setSize(ProfileConstants.PROFILE_IMAGE_THUMBNAIL); add(image); //text final Label text = new Label("text", new StringResourceModel("text.friend.add", null, new Object[] { friendName })); text.setEscapeModelStrings(false); text.setOutputMarkupId(true); add(text); //setup form Form form = new Form("form"); form.setOutputMarkupId(true); //submit button AjaxFallbackButton submitButton = new AjaxFallbackButton("submit", new ResourceModel("button.friend.add"), form) { private static final long serialVersionUID = 1L; protected void onSubmit(AjaxRequestTarget target, Form form) { /* double checking */ //friend? if (connectionsLogic.isUserXFriendOfUserY(userX, userY)) { text.setDefaultModel(new StringResourceModel("error.friend.already.confirmed", null, new Object[] { friendName })); this.setEnabled(false); this.add(new AttributeModifier("class", true, new Model("disabled"))); target.add(text); target.add(this); return; } //has a friend request already been made to this person? if (connectionsLogic.isFriendRequestPending(userX, userY)) { text.setDefaultModel(new StringResourceModel("error.friend.already.pending", null, new Object[] { friendName })); this.setEnabled(false); this.add(new AttributeModifier("class", true, new Model("disabled"))); target.add(text); target.add(this); return; } //has a friend request been made from this person to the current user? if (connectionsLogic.isFriendRequestPending(userY, userX)) { text.setDefaultModel(new StringResourceModel("error.friend.already.pending", null, new Object[] { friendName })); this.setEnabled(false); this.add(new AttributeModifier("class", true, new Model("disabled"))); target.add(text); target.add(this); return; } //if ok, request friend if (connectionsLogic.requestFriend(userX, userY)) { friendActionModel.setRequested(true); //post event sakaiProxy.postEvent(ProfileConstants.EVENT_FRIEND_REQUEST, "/profile/" + userY, true); window.close(target); } else { text.setDefaultModel( new StringResourceModel("error.friend.add.failed", null, new Object[] { friendName })); this.setEnabled(false); this.add(new AttributeModifier("class", true, new Model("disabled"))); target.add(text); target.add(this); return; } } }; //submitButton.add(new FocusOnLoadBehaviour()); submitButton.add(new AttributeModifier("title", true, new StringResourceModel("accessibility.connection.add", null, new Object[] { friendName }))); form.add(submitButton); //cancel button AjaxFallbackButton cancelButton = new AjaxFallbackButton("cancel", new ResourceModel("button.cancel"), form) { private static final long serialVersionUID = 1L; protected void onSubmit(AjaxRequestTarget target, Form form) { friendActionModel.setRequested(false); window.close(target); } }; cancelButton.setDefaultFormProcessing(false); form.add(cancelButton); //add form add(form); } }