package com.alfresco.designer.gui.property;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import org.activiti.bpmn.model.UserTask;
import org.activiti.designer.eclipse.preferences.PreferencesUtil;
import org.activiti.designer.util.eclipse.ActivitiUiUtil;
import org.activiti.designer.util.preferences.Preferences;
import org.activiti.designer.util.property.ActivitiPropertySection;
import org.apache.commons.lang.StringUtils;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.ui.editor.DiagramEditor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
public class PropertyAlfrescoUserTaskSection extends ActivitiPropertySection implements ITabbedPropertyConstants {
private CCombo performerTypeCombo;
private List<String> performerTypes = Arrays.asList("Assignee", "Candidate users", "Candidate groups");
private String currentType = "Assignee";
private Text expressionText;
private CCombo formTypeCombo;
private Text priorityText;
private Text documentationText;
@Override
public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) {
super.createControls(parent, tabbedPropertySheetPage);
TabbedPropertySheetWidgetFactory factory = getWidgetFactory();
Composite composite = factory.createFlatFormComposite(parent);
FormData data;
performerTypeCombo = createCCombo(composite, performerTypes, factory, null);
createLabel("Performer type:", composite, factory, performerTypeCombo);
expressionText = createText(composite, factory, performerTypeCombo);
createLabel("Expression:", composite, factory, expressionText);
formTypeCombo = createCCombo(composite, PreferencesUtil.getStringArray(Preferences.ALFRESCO_FORMTYPES_USERTASK),
factory, expressionText);
createLabel("Form key:", composite, factory, formTypeCombo);
priorityText = createText(composite, factory, formTypeCombo);
createLabel("Priority:", composite, factory, priorityText);
documentationText = factory.createText(composite, "", SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL); //$NON-NLS-1$
data = new FormData(SWT.DEFAULT, 100);
data.left = new FormAttachment(0, 160);
data.right = new FormAttachment(100, 0);
data.top = new FormAttachment(priorityText, VSPACE);
documentationText.setLayoutData(data);
documentationText.addFocusListener(listener);
createLabel("Documentation:", composite, factory, documentationText);
}
@Override
public void refresh() {
performerTypeCombo.removeFocusListener(listener);
expressionText.removeFocusListener(listener);
formTypeCombo.removeFocusListener(listener);
priorityText.removeFocusListener(listener);
documentationText.removeFocusListener(listener);
PictogramElement pe = getSelectedPictogramElement();
if (pe != null) {
Object bo = getBusinessObject(pe);
if (bo == null)
return;
expressionText.setText("");
UserTask userTask = (UserTask) bo;
int performerIndex = 0;
if (userTask.getCandidateUsers() != null && userTask.getCandidateUsers().size() > 0) {
performerIndex = performerTypes.indexOf("Candidate users");
StringBuffer expressionBuffer = new StringBuffer();
for (String user : userTask.getCandidateUsers()) {
if (expressionBuffer.length() > 0) {
expressionBuffer.append(";");
}
expressionBuffer.append(user);
}
currentType = "Candidate users";
expressionText.setText(expressionBuffer.toString());
} else if (userTask.getCandidateGroups() != null && userTask.getCandidateGroups().size() > 0) {
performerIndex = performerTypes.indexOf("Candidate groups");
StringBuffer expressionBuffer = new StringBuffer();
for (String group : userTask.getCandidateGroups()) {
if (expressionBuffer.length() > 0) {
expressionBuffer.append(";");
}
expressionBuffer.append(group);
}
currentType = "Candidate groups";
expressionText.setText(expressionBuffer.toString());
} else {
performerIndex = performerTypes.indexOf("Assignee");
if (userTask.getAssignee() != null && userTask.getAssignee().length() > 0) {
currentType = "Assignee";
expressionText.setText(userTask.getAssignee());
}
}
if(userTask.getFormKey() != null && userTask.getFormKey().length() > 0) {
int formIndex = formTypeCombo.indexOf(userTask.getFormKey());
if(formIndex >= 0) {
formTypeCombo.select(formIndex);
}
}
priorityText.setText("");
if(userTask.getPriority() != null) {
priorityText.setText(userTask.getPriority().toString());
}
documentationText.setText("");
if (StringUtils.isNotEmpty(userTask.getDocumentation())) {
documentationText.setText(userTask.getDocumentation());
}
performerTypeCombo.select(performerIndex == -1 ? 0 : performerIndex);
performerTypeCombo.addFocusListener(listener);
expressionText.addFocusListener(listener);
formTypeCombo.addFocusListener(listener);
priorityText.addFocusListener(listener);
documentationText.addFocusListener(listener);
}
}
private FocusListener listener = new FocusListener() {
public void focusGained(final FocusEvent e) {
}
public void focusLost(final FocusEvent e) {
final String performerType = performerTypeCombo.getText();
if (e.getSource() instanceof CCombo && !currentType.equalsIgnoreCase(performerType)) {
expressionText.setText("");
}
currentType = performerType;
PictogramElement pe = getSelectedPictogramElement();
if (pe != null) {
final Object bo = getBusinessObject(pe);
if (bo instanceof UserTask) {
DiagramEditor diagramEditor = (DiagramEditor) getDiagramEditor();
TransactionalEditingDomain editingDomain = diagramEditor.getEditingDomain();
ActivitiUiUtil.runModelChange(new Runnable() {
public void run() {
UserTask userTask = (UserTask) bo;
String expression = expressionText.getText();
if (performerType != null && expression != null && expression.length() > 0) {
if ("assignee".equalsIgnoreCase(performerType)) {
userTask.setAssignee(expression);
removeCandidateUsers(userTask);
removeCandidateGroups(userTask);
} else if ("candidate users".equalsIgnoreCase(performerType)) {
String[] expressionList = null;
if (expression.contains(";")) {
expressionList = expression.split(";");
} else {
expressionList = new String[] { expression };
}
for (String user : expressionList) {
if (!candidateUserExists(userTask, user)) {
userTask.getCandidateUsers().add(user);
}
}
removeCandidateUsersNotInList(expressionList, userTask);
userTask.setAssignee(null);
removeCandidateGroups(userTask);
} else {
String[] expressionList = null;
if (expression.contains(";")) {
expressionList = expression.split(";");
} else {
expressionList = new String[] { expression };
}
for (String group : expressionList) {
if (!candidateGroupExists(userTask, group)) {
userTask.getCandidateGroups().add(group);
}
}
removeCandidateGroupsNotInList(expressionList, userTask);
userTask.setAssignee(null);
removeCandidateUsers(userTask);
}
}
String formKey = formTypeCombo.getText();
if (formKey != null) {
userTask.setFormKey(formKey);
} else {
userTask.setFormKey("");
}
userTask.setPriority(priorityText.getText());
userTask.setDocumentation(documentationText.getText());
}
}, editingDomain, "Model Update");
}
}
}
private void removeCandidateUsers(UserTask userTask) {
if (userTask.getCandidateUsers() == null)
return;
userTask.getCandidateUsers().clear();
}
private void removeCandidateUsersNotInList(String[] expressionList, UserTask userTask) {
Iterator<String> entryIterator = userTask.getCandidateUsers().iterator();
while (entryIterator.hasNext()) {
String candidateUser = entryIterator.next();
boolean found = false;
for (String user : expressionList) {
if (user.equals(candidateUser)) {
found = true;
break;
}
}
if (found == false) {
entryIterator.remove();
}
}
}
private boolean candidateUserExists(UserTask userTask, String userText) {
if (userTask.getCandidateUsers() == null)
return false;
for (String user : userTask.getCandidateUsers()) {
if (userText.equalsIgnoreCase(user)) {
return true;
}
}
return false;
}
private void removeCandidateGroups(UserTask userTask) {
if (userTask.getCandidateGroups() == null)
return;
userTask.getCandidateGroups().clear();
}
private void removeCandidateGroupsNotInList(String[] expressionList, UserTask userTask) {
Iterator<String> entryIterator = userTask.getCandidateGroups().iterator();
while (entryIterator.hasNext()) {
String candidateGroup = entryIterator.next();
boolean found = false;
for (String group : expressionList) {
if (group.equals(candidateGroup)) {
found = true;
break;
}
}
if (found == false) {
entryIterator.remove();
}
}
}
private boolean candidateGroupExists(UserTask userTask, String groupText) {
if (userTask.getCandidateGroups() == null)
return false;
for (String group : userTask.getCandidateGroups()) {
if (groupText.equalsIgnoreCase(group)) {
return true;
}
}
return false;
}
};
private Text createText(Composite parent, TabbedPropertySheetWidgetFactory factory, Control top) {
Text text = factory.createText(parent, ""); //$NON-NLS-1$
FormData data = new FormData();
data.left = new FormAttachment(0, 160);
data.right = new FormAttachment(100, -HSPACE);
if(top == null) {
data.top = new FormAttachment(0, VSPACE);
} else {
data.top = new FormAttachment(top, VSPACE);
}
text.setLayoutData(data);
text.addFocusListener(listener);
return text;
}
private CLabel createLabel(String text, Composite parent, TabbedPropertySheetWidgetFactory factory, Control control) {
CLabel label = factory.createCLabel(parent, text);
FormData data = new FormData();
data.left = new FormAttachment(0, 0);
data.right = new FormAttachment(control, -HSPACE);
data.top = new FormAttachment(control, 0, SWT.CENTER);
label.setLayoutData(data);
return label;
}
private CCombo createCCombo(Composite parent, List<String> values, TabbedPropertySheetWidgetFactory factory, Control top) {
CCombo combo = factory.createCCombo(parent, SWT.NONE);
for (String value : values) {
combo.add(value);
}
FormData data = new FormData();
data.left = new FormAttachment(0, 160);
data.right = new FormAttachment(100, 0);
if(top == null) {
data.top = new FormAttachment(0, VSPACE);
} else {
data.top = new FormAttachment(top, VSPACE);
}
combo.setLayoutData(data);
combo.addFocusListener(listener);
return combo;
}
}