Java tutorial
/* * Copyright 2007 Aditya Kapur <addy AT gwtiger.org> * * 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.onecmdb.ui.gwt.itil.client.main.screen.navigation; import org.gwtiger.client.screen.BaseScreen; import org.gwtiger.client.widget.ScreenMenuItem; import org.onecmdb.ui.gwt.itil.client.ITILApplication; import org.onecmdb.ui.gwt.toolkit.client.OneCMDBApplication; import org.onecmdb.ui.gwt.toolkit.client.control.tree.InheritanceTreeControl; import org.onecmdb.ui.gwt.toolkit.client.model.onecmdb.GWT_CiBean; import org.onecmdb.ui.gwt.toolkit.client.view.screen.OneCMDBBaseScreen; import org.onecmdb.ui.gwt.toolkit.client.view.tree.ChangeTreeRootTree; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.Tree; import com.google.gwt.user.client.ui.TreeItem; import com.google.gwt.user.client.ui.TreeListener; import com.google.gwt.user.client.ui.Widget; public class NavigationScreen extends OneCMDBBaseScreen implements ClickListener { private Tree treePanel = new Tree(); private ScreenMenuItem newIncidentScreen = new ScreenMenuItem( createHTML("images/incident_16.gif", "New Incident"), ITILApplication.NEW_INCDIENT_SCREEN); private ScreenMenuItem monitorIncidentScreen = new ScreenMenuItem( createHTML("images/incident_16.gif", "List Incidents"), ITILApplication.LIST_INCDIENT_SCREEN); private ScreenMenuItem groupMonitorIncidentScreen = new ScreenMenuItem( createHTML("images/incident_16.gif", "List Incidents by Status"), ITILApplication.GROUP_LIST_INCDIENT_SCREEN); private ScreenMenuItem newProblemScreen = new ScreenMenuItem(createHTML("images/problem_16.gif", "New Problem"), ITILApplication.NEW_PROBLEM_SCREEN); private ScreenMenuItem monitorProblemScreen = new ScreenMenuItem( createHTML("images/problem_16.gif", "List Problems"), ITILApplication.LIST_PROBLEM_SCREEN); private ScreenMenuItem groupMonitorProblemScreen = new ScreenMenuItem( createHTML("images/problem_16.gif", "List Problems by Status"), ITILApplication.GROUP_LIST_PROBLEM_SCREEN); // TREE // ITIL // Operation // Incident Management // New // List // Edit // Problem Management // New // List // Edit public NavigationScreen() { /* newIncidentScreen.addClickListener(this); monitorIncidentScreen.addClickListener(this); groupMonitorIncidentScreen.addClickListener(this); newProblemScreen.addClickListener(this); monitorProblemScreen.addClickListener(this); groupMonitorProblemScreen.addClickListener(this); */ ScreenObjectTypeMenuItem itilMain = new ScreenObjectTypeMenuItem( createHeaderHTML("images/ITIL/itil_32.gif", "ITIL Applications"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_itil_applications.html"); TreeItem itil = addItem(treePanel, itilMain); ScreenObjectTypeMenuItem operationMenu = new ScreenObjectTypeMenuItem( createHeaderHTML("images/ITIL/service-operation_32.gif", "Service Operation"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_operation.html"); TreeItem operationItem = addItem(itil, operationMenu); ScreenObjectTypeMenuItem transitionMenu = new ScreenObjectTypeMenuItem( createHeaderHTML("images/ITIL/service-transition_32.gif", "Service Transition"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_transition.html"); TreeItem transitionItem = addItem(itil, transitionMenu); /** * Incident navigation */ ScreenObjectTypeMenuItem incidentMenu = new ScreenObjectTypeMenuItem( createHTML("images/incident_16.gif", "Incident Management"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_incident.html"); TreeItem incidentItem = addItem(operationItem, incidentMenu); addItem(incidentItem, newIncidentScreen); addItem(incidentItem, monitorIncidentScreen); addItem(incidentItem, groupMonitorIncidentScreen); /* TreeItem newIncidentItem = new TreeItem(); newIncidentItem.setWidget(newIncidentScreen); incidentItem.addItem(newIncidentItem); TreeItem monitorIncidentItem = new TreeItem(); monitorIncidentItem.setWidget(monitorIncidentScreen); incidentItem.addItem(monitorIncidentItem); TreeItem groupMonitorIncidentItem = new TreeItem(); groupMonitorIncidentItem.setWidget(groupMonitorIncidentScreen); incidentItem.addItem(groupMonitorIncidentItem); */ /** * Problem navigation */ ScreenObjectTypeMenuItem problemMenu = new ScreenObjectTypeMenuItem( createHTML("images/problem_16.gif", "Problem Management"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_problem.html"); TreeItem problemItem = addItem(operationItem, problemMenu); addItem(problemItem, newProblemScreen); addItem(problemItem, monitorProblemScreen); addItem(problemItem, groupMonitorProblemScreen); /* TreeItem newProblemItem = new TreeItem(); newProblemItem.setWidget(newProblemScreen); problemItem.addItem(newProblemItem); TreeItem monitorProblemItem = new TreeItem(); monitorProblemItem.setWidget(monitorProblemScreen); problemItem.addItem(monitorProblemItem); TreeItem groupMonitorProblemItem = new TreeItem(); groupMonitorProblemItem.setWidget(groupMonitorProblemScreen); problemItem.addItem(groupMonitorProblemItem); */ /** * Configuration Management */ ScreenObjectTypeMenuItem configurationMenu = new ScreenObjectTypeMenuItem( createHTML("Configuration Management"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_configuration.html"); TreeItem configItem = addItem(transitionItem, configurationMenu); /* TreeItem configItem = new TreeItem(); configItem.setWidget(new Label("Configuration Management")); transitionItem.addItem(configItem); */ ScreenObjectTypeMenuItem assetMenu = new ScreenObjectTypeMenuItem(createHTML("Assets"), false, ITILApplication.SHOW_STATIC_CONTENT, "static/welcome_asset.html"); TreeItem assetItem = addItem(configItem, assetMenu); /* TreeItem listCIItem = new TreeItem(); listCIItem.setWidget(new Label("Assets")); configItem.addItem(listCIItem); */ assetItem.addItem("Loading...."); //treePanel.addItem(itil); treePanel.setStyleName("mdv-form"); InheritanceTreeControl treeControl = new InheritanceTreeControl("Ci"); treeControl.setFilterInstances(Boolean.TRUE); // Add this to show that the CI is clickable. treeControl.setClickListener(new ClickListener() { public void onClick(Widget sender) { } }); treeControl.setTreeListener(new TreeListener() { public void onTreeItemSelected(TreeItem item) { // Show a list of that template. Object data = item.getUserObject(); if (data instanceof GWT_CiBean) { ITILApplication.get().showScreen(ITILApplication.LIST_CI_SCREEN, ((GWT_CiBean) data).getAlias(), new Long(-1)); } } public void onTreeItemStateChanged(TreeItem item) { // TODO Auto-generated method stub } }); ChangeTreeRootTree templateTree = new ChangeTreeRootTree(treePanel, treeControl); templateTree.setTriggerItem(assetItem); initWidget(treePanel); } public boolean isRightPanel() { return (false); } private TreeItem addItem(Tree tree, ScreenMenuItem widget) { TreeItem childItem = new TreeItem(); childItem.setWidget(widget); tree.addItem(childItem); widget.addClickListener(this); return (childItem); } private TreeItem addItem(TreeItem parentItem, ScreenMenuItem widget) { TreeItem childItem = new TreeItem(); childItem.setWidget(widget); parentItem.addItem(childItem); widget.addClickListener(this); return (childItem); } /** * Creates an HTML fragment that places an image & caption together, for use * in a group header. * * @param imageUrl the url of the icon image to be used * @param caption the group caption * @return the header HTML fragment */ private String createHeaderHTML(String imageUrl, String caption) { return "<table align='left'><tr>" + "<td><img src='" + imageUrl + "'></td>" + "<td style='vertical-align:middle'><b style='white-space:nowrap'><a href='javascript:;'>" + caption + "</a></b></td>" + "</tr></table>"; } private String createHTML(String imageURL, String caption) { return "<table align='left'><tr><td><img src='" + imageURL + "'></td>" + "<td style='vertical-align:middle'><a style='white-space:nowrap' href='javascript:;'>" + caption + "</a></td>" + "</tr></table>"; /* return "<a style='white-space:nowrap' href='javascript:;'>" + caption + "</a>"; */ } private String createHTML(String caption) { return "<table align='left'><tr>" + "<td style='vertical-align:middle'><a style='white-space:nowrap' href='javascript:;'>" + caption + "</a></td>" + "</tr></table>"; /* return "<a style='white-space:nowrap' href='javascript:;'>" + caption + "</a>"; */ } private String createHTMLWithTable(String caption) { return "<table align='left'><tr>" + "<td><img src='mdv-menu.gif'></td><td style='vertical-align:middle'><a href='javascript:;'>" + caption + "</a></td>" + "</tr></table>"; } public void onClick(Widget sender) { try { if (sender instanceof ScreenObjectTypeMenuItem) { ScreenObjectTypeMenuItem screen = (ScreenObjectTypeMenuItem) sender; ITILApplication.get().showScreen(screen.getScreenIndex(), screen.getObjectType(), new Long(0)); return; } if (sender instanceof ScreenMenuItem) { ScreenMenuItem screen = (ScreenMenuItem) sender; ITILApplication.get().showScreen(screen.getScreenIndex()); return; } } catch (Exception e) { e.printStackTrace(); } } class ScreenObjectTypeMenuItem extends ScreenMenuItem { private String objectType; public ScreenObjectTypeMenuItem(String html, boolean wordWrap, int screenIndex, String objectType) { super(html, wordWrap, screenIndex); this.objectType = objectType; } public String getObjectType() { return (this.objectType); } } }