Java tutorial
/** * openkm, Open Document Management System (http://www.openkm.com) * Copyright (c) 2006-2013 Paco Avila & Josep Llort * * No bytes were intentionally harmed during the development of this application. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package com.ikon.frontend.client.widget; import java.util.HashMap; import java.util.Iterator; import java.util.List; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ChangeEvent; import com.google.gwt.event.dom.client.ChangeHandler; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.DialogBox; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.SimplePanel; import com.google.gwt.user.client.ui.VerticalPanel; import com.ikon.frontend.client.Main; import com.ikon.frontend.client.bean.GWTProcessDefinition; import com.ikon.frontend.client.service.OKMWorkflowService; import com.ikon.frontend.client.service.OKMWorkflowServiceAsync; import com.ikon.frontend.client.widget.wizard.WorkflowWidget; import com.ikon.frontend.client.widget.wizard.WorkflowWidgetToFire; /** * WorkflowPopup popup * s * @author jllort * */ public class WorkflowPopup extends DialogBox implements WorkflowWidgetToFire { private final OKMWorkflowServiceAsync workflowService = (OKMWorkflowServiceAsync) GWT .create(OKMWorkflowService.class); private VerticalPanel vPanel; private HorizontalPanel hPanel; private Button button; private Button addButton; private ListBox listBox; private SimplePanel sp; private WorkflowWidget workflowWidget = null; private String uuid = ""; /** * WorkflowPopup popup */ public WorkflowPopup() { // Establishes auto-close when click outside super(false, true); vPanel = new VerticalPanel(); hPanel = new HorizontalPanel(); sp = new SimplePanel(); button = new Button(Main.i18n("button.close"), new ClickHandler() { @Override public void onClick(ClickEvent event) { hide(); } }); addButton = new Button(Main.i18n("button.start"), new ClickHandler() { @Override public void onClick(ClickEvent event) { addButton.setEnabled(false); runProcessDefinition(); } }); listBox = new ListBox(); listBox.addChangeHandler(new ChangeHandler() { @Override public void onChange(ChangeEvent event) { if (listBox.getSelectedIndex() > 0) { addButton.setEnabled(true); } else { addButton.setEnabled(false); } sp.setVisible(false); sp.clear(); } }); listBox.setStyleName("okm-Select"); vPanel.setWidth("300px"); vPanel.setHeight("50px"); button.setStyleName("okm-YesButton"); addButton.setStyleName("okm-AddButton"); addButton.setEnabled(false); hPanel.add(button); hPanel.add(new HTML(" ")); hPanel.add(addButton); hPanel.setCellHorizontalAlignment(button, VerticalPanel.ALIGN_CENTER); hPanel.setCellHorizontalAlignment(addButton, VerticalPanel.ALIGN_CENTER); vPanel.add(new HTML("<br>")); vPanel.add(listBox); vPanel.add(sp); vPanel.add(new HTML("<br>")); vPanel.add(hPanel); vPanel.add(new HTML("<br>")); vPanel.setCellHorizontalAlignment(listBox, VerticalPanel.ALIGN_CENTER); vPanel.setCellHorizontalAlignment(hPanel, VerticalPanel.ALIGN_CENTER); super.hide(); setWidget(vPanel); } /** * Gets asynchronous to get all process definitions */ final AsyncCallback<List<GWTProcessDefinition>> callbackFindLatestProcessDefinitions = new AsyncCallback<List<GWTProcessDefinition>>() { public void onSuccess(List<GWTProcessDefinition> result) { listBox.clear(); listBox.addItem("", ""); // Adds empty value for (Iterator<GWTProcessDefinition> it = result.iterator(); it.hasNext();) { GWTProcessDefinition processDefinition = it.next(); if (Main.get().workspaceUserProperties.getWorkspace().getMiscWorkflowList() .contains(processDefinition.getName())) { listBox.addItem(processDefinition.getName(), processDefinition.getName()); } } } public void onFailure(Throwable caught) { Main.get().showError("callbackFindLatestProcessDefinitions", caught); } }; /** * Gets asynchronous to run process definition */ final AsyncCallback<Object> callbackRunProcessDefinition = new AsyncCallback<Object>() { public void onSuccess(Object result) { Main.get().mainPanel.dashboard.workflowDashboard.findUserTaskInstances(); } public void onFailure(Throwable caught) { Main.get().showError("callbackRunProcessDefinition", caught); } }; /** * Enables close button */ public void enableClose() { button.setEnabled(true); Main.get().mainPanel.setVisible(true); // Shows main panel when all widgets are loaded } /** * Language refresh */ public void langRefresh() { setText(Main.i18n("workflow.label")); button.setText(Main.i18n("button.close")); addButton.setText(Main.i18n("button.start")); } /** * Show the popup error * * @param msg Error message */ public void show() { setText(Main.i18n("workflow.label")); findLatestProcessDefinitions(); // Gets all groups listBox.setVisible(true); addButton.setEnabled(false); workflowWidget = null; listBox.setVisible(true); sp.setVisible(false); sp.clear(); int left = (Window.getClientWidth() - 300) / 2; int top = (Window.getClientHeight() - 100) / 2; setPopupPosition(left, top); super.show(); } /** * Gets all process definitions */ private void findLatestProcessDefinitions() { workflowService.findLatestProcessDefinitions(callbackFindLatestProcessDefinitions); } /** * Run process definition */ private void runProcessDefinition() { if (workflowWidget != null) { workflowWidget.runProcessDefinition(); // Here has some forms to be filled } else if (listBox.getSelectedIndex() > 0) { if (Main.get().activeFolderTree.isPanelSelected()) { uuid = Main.get().activeFolderTree.getFolder().getUuid(); } else { if (Main.get().mainPanel.desktop.browser.fileBrowser.isDocumentSelected()) { uuid = Main.get().mainPanel.desktop.browser.fileBrowser.getDocument().getUuid(); } else if (Main.get().mainPanel.desktop.browser.fileBrowser.isFolderSelected()) { uuid = Main.get().mainPanel.desktop.browser.fileBrowser.getFolder().getUuid(); } else if (Main.get().mainPanel.desktop.browser.fileBrowser.isMailSelected()) { uuid = Main.get().mainPanel.desktop.browser.fileBrowser.getMail().getUuid(); } } workflowWidget = new WorkflowWidget(listBox.getValue(listBox.getSelectedIndex()), uuid, this, new HashMap<String, Object>()); listBox.setVisible(false); sp.add(workflowWidget); workflowWidget.runProcessDefinition(); } } @Override public void finishedRunProcessDefinition() { workflowWidget = null; hide(); } @Override public void hasPendingProcessDefinitionForms() { sp.setVisible(true); addButton.setEnabled(true); } }