Examples with VisibleBehaviour com.evolveum.midpoint.web.component.util.VisibleBehaviour used on opensource projects

Example 1 with VisibleBehaviour

use of com.evolveum.midpoint.web.component.util.VisibleBehaviour in project midpoint by Evolveum.

the class RoleMemberPanel method initSearch.

@Override
protected void initSearch(Form form) {
    List<QName> allowedTypes = WebComponentUtil.createFocusTypeList();
    allowedTypes.add(FocusType.COMPLEX_TYPE);
    DropDownChoice<QName> typeSelect = createDropDown(ID_OBJECT_TYPE, Model.of(FocusType.COMPLEX_TYPE), allowedTypes, new QNameChoiceRenderer());
    add(typeSelect);
    DropDownChoice<OrgType> tenant = createDropDown(ID_TENANT, new Model(), createTenantList(), new ObjectTypeChoiceRenderer<OrgType>());
    add(tenant);
    tenant.add(new VisibleEnableBehaviour() {

        @Override
        public boolean isVisible() {
            return isRole();
        }
    });
    DropDownChoice<OrgType> project = createDropDown(ID_PROJECT, new Model(), createProjectList(), new ObjectTypeChoiceRenderer<OrgType>());
    add(project);
    project.add(new VisibleEnableBehaviour() {

        @Override
        public boolean isVisible() {
            return isRole();
        }
    });
    CheckBoxPanel includeIndirectMembers = new CheckBoxPanel(ID_INDIRECT_MEMBERS, new Model<Boolean>(false)) {

        private static final long serialVersionUID = 1L;

        public void onUpdate(AjaxRequestTarget target) {
            refreshTable(target);
        }
    };
    add(includeIndirectMembers);
    // TODO shouldn't we hide also the label?
    includeIndirectMembers.add(new VisibleBehaviour(this::isRole));
}

Example 2 with VisibleBehaviour

use of com.evolveum.midpoint.web.component.util.VisibleBehaviour in project midpoint by Evolveum.

the class PageAuditLogDetails method initEventPanel.

private void initEventPanel(WebMarkupContainer eventPanel) {
    WebMarkupContainer eventDetailsPanel = new WebMarkupContainer(ID_EVENT_DETAILS_PANEL);
    eventDetailsPanel.setOutputMarkupId(true);
    eventPanel.addOrReplace(eventDetailsPanel);
    final Label identifier = new Label(ID_PARAMETERS_EVENT_IDENTIFIER, new PropertyModel(recordModel, ID_PARAMETERS_EVENT_IDENTIFIER));
    identifier.setOutputMarkupId(true);
    eventDetailsPanel.add(identifier);
    final Label timestamp = new Label(ID_PARAMETERS_TIMESTAMP, new PropertyModel(recordModel, ID_PARAMETERS_TIMESTAMP));
    timestamp.setOutputMarkupId(true);
    eventDetailsPanel.add(timestamp);
    final Label sessionIdentifier = new Label(ID_PARAMETERS_SESSION_IDENTIFIER, new PropertyModel(recordModel, ID_PARAMETERS_SESSION_IDENTIFIER));
    sessionIdentifier.setOutputMarkupId(true);
    eventDetailsPanel.add(sessionIdentifier);
    final Label taskIdentifier = new Label(ID_PARAMETERS_TASK_IDENTIFIER, new PropertyModel(recordModel, ID_PARAMETERS_TASK_IDENTIFIER));
    taskIdentifier.setOutputMarkupId(true);
    eventDetailsPanel.add(taskIdentifier);
    final Label taskOID = new Label(ID_PARAMETERS_TASK_OID, new PropertyModel(recordModel, ID_PARAMETERS_TASK_OID));
    taskOID.setOutputMarkupId(true);
    eventDetailsPanel.add(taskOID);
    final Label hostIdentifier = new Label(ID_PARAMETERS_HOST_IDENTIFIER, new PropertyModel(recordModel, ID_PARAMETERS_HOST_IDENTIFIER));
    hostIdentifier.setOutputMarkupId(true);
    eventDetailsPanel.add(hostIdentifier);
    final Label nodeIdentifier = new Label(ID_PARAMETERS_NODE_IDENTIFIER, new PropertyModel(recordModel, ID_PARAMETERS_NODE_IDENTIFIER));
    nodeIdentifier.setOutputMarkupId(true);
    eventDetailsPanel.add(nodeIdentifier);
    final Label remoteHostAddress = new Label(ID_PARAMETERS_REMOTE_HOST_ADDRESS, new PropertyModel(recordModel, ID_PARAMETERS_REMOTE_HOST_ADDRESS));
    remoteHostAddress.setOutputMarkupId(true);
    eventDetailsPanel.add(remoteHostAddress);
    final Label initiatorRef = new Label(ID_PARAMETERS_EVENT_INITIATOR, new Model<>(WebModelServiceUtils.resolveReferenceName(recordModel.getObject().getInitiatorRef(), this, createSimpleTask(ID_PARAMETERS_EVENT_INITIATOR), new OperationResult(ID_PARAMETERS_EVENT_INITIATOR))));
    initiatorRef.setOutputMarkupId(true);
    eventDetailsPanel.add(initiatorRef);
    final Label targetRef = new Label(ID_PARAMETERS_EVENT_TARGET, new Model<>(WebModelServiceUtils.resolveReferenceName(recordModel.getObject().getTargetRef(), this, createSimpleTask(ID_PARAMETERS_EVENT_TARGET), new OperationResult(ID_PARAMETERS_EVENT_TARGET))));
    targetRef.setOutputMarkupId(true);
    eventDetailsPanel.add(targetRef);
    IModel<String> targetOwnerRefModel = new IModel<String>() {

        @Override
        public String getObject() {
            return WebModelServiceUtils.resolveReferenceName(recordModel.getObject().getTargetOwnerRef(), PageAuditLogDetails.this, createSimpleTask(OPERATION_RESOLVE_REFERENCE_NAME), new OperationResult(OPERATION_RESOLVE_REFERENCE_NAME));
        }

        @Override
        public void setObject(String s) {
        }

        @Override
        public void detach() {
        }
    };
    final Label targetOwnerRef = new Label(ID_PARAMETERS_EVENT_TARGET_OWNER, targetOwnerRefModel);
    targetOwnerRef.setOutputMarkupId(true);
    eventDetailsPanel.add(targetOwnerRef);
    final Label eventType = new Label(ID_PARAMETERS_EVENT_TYPE, new PropertyModel(recordModel, ID_PARAMETERS_EVENT_TYPE));
    eventType.setOutputMarkupId(true);
    eventDetailsPanel.add(eventType);
    final Label eventStage = new Label(ID_PARAMETERS_EVENT_STAGE, new PropertyModel(recordModel, ID_PARAMETERS_EVENT_STAGE));
    eventStage.setOutputMarkupId(true);
    eventDetailsPanel.add(eventStage);
    final Label channel = new Label(ID_PARAMETERS_CHANNEL, new PropertyModel(recordModel, ID_PARAMETERS_CHANNEL));
    channel.setOutputMarkupId(true);
    eventDetailsPanel.add(channel);
    final Label eventOutcome = new Label(ID_PARAMETERS_EVENT_OUTCOME, new PropertyModel(recordModel, ID_PARAMETERS_EVENT_OUTCOME));
    eventOutcome.setOutputMarkupId(true);
    eventDetailsPanel.add(eventOutcome);
    final Label eventResult = new Label(ID_PARAMETERS_EVENT_RESULT, new PropertyModel(recordModel, ID_PARAMETERS_EVENT_RESULT));
    eventResult.setOutputMarkupId(true);
    eventDetailsPanel.add(eventResult);
    final Label parameter = new Label(ID_PARAMETERS_PARAMETER, new PropertyModel(recordModel, ID_PARAMETERS_PARAMETER));
    parameter.setOutputMarkupId(true);
    eventDetailsPanel.add(parameter);
    final Label message = new Label(ID_PARAMETERS_MESSAGE, new PropertyModel(recordModel, ID_PARAMETERS_MESSAGE));
    message.setOutputMarkupId(true);
    eventDetailsPanel.add(message);
    ListView<AuditEventRecordItemValueDto> additionalItemsList = new ListView<AuditEventRecordItemValueDto>(ID_ADDITIONAL_ITEM_LINE, new AbstractReadOnlyModel<List<AuditEventRecordItemValueDto>>() {

        @Override
        public List<AuditEventRecordItemValueDto> getObject() {
            List<AuditEventRecordItemValueDto> rv = new ArrayList<>();
            for (AuditEventRecordItemType item : getSortedItems()) {
                String currentName = getDisplayName(item.getName());
                if (item instanceof AuditEventRecordPropertyType) {
                    for (String value : ((AuditEventRecordPropertyType) item).getValue()) {
                        rv.add(new AuditEventRecordItemValueDto(currentName, value));
                        currentName = null;
                    }
                } else if (item instanceof AuditEventRecordReferenceType) {
                    for (AuditEventRecordReferenceValueType value : ((AuditEventRecordReferenceType) item).getValue()) {
                        rv.add(new AuditEventRecordItemValueDto(currentName, value.getTargetName() != null ? value.getTargetName().getOrig() : value.getOid()));
                        currentName = null;
                    }
                } else {
                // should not occur
                }
            }
            return rv;
        }

        // TODO take locale into account when sorting
        private List<AuditEventRecordItemType> getSortedItems() {
            AuditEventRecordType record = recordModel.getObject();
            List<AuditEventRecordItemType> rv = new ArrayList<>();
            rv.addAll(record.getProperty());
            rv.addAll(record.getReference());
            rv.sort((a, b) -> {
                // explicitly enumerated are shown first; others are sorted by display name
                int index_a = EXTENSION_ITEMS_ORDER.indexOf(a.getName());
                int index_b = EXTENSION_ITEMS_ORDER.indexOf(b.getName());
                if (index_a != -1 && index_b != -1) {
                    return Integer.compare(index_a, index_b);
                } else if (index_a != -1) {
                    return -1;
                } else if (index_b != -1) {
                    return 1;
                }
                String name_a = getDisplayName(a.getName());
                String name_b = getDisplayName(b.getName());
                return String.CASE_INSENSITIVE_ORDER.compare(name_a, name_b);
            });
            return rv;
        }

        private String getDisplayName(String nameKey) {
            // null should not occur so we don't try to be nice when displaying it
            return nameKey != null ? createStringResource(nameKey).getString() : "(null)";
        }
    }) {

        @Override
        protected void populateItem(ListItem<AuditEventRecordItemValueDto> item) {
            item.add(new Label(ID_ITEM_NAME, new PropertyModel<String>(item.getModel(), AuditEventRecordItemValueDto.F_NAME)));
            item.add(new Label(ID_ITEM_VALUE, new PropertyModel<String>(item.getModel(), AuditEventRecordItemValueDto.F_VALUE)));
        }
    };
    WebMarkupContainer additionalItemsContainer = new WebMarkupContainer(ID_ADDITIONAL_ITEMS);
    additionalItemsContainer.add(additionalItemsList);
    additionalItemsContainer.add(new VisibleBehaviour(() -> !additionalItemsList.getModelObject().isEmpty()));
    eventDetailsPanel.add(additionalItemsContainer);
}

Example 3 with VisibleBehaviour

use of com.evolveum.midpoint.web.component.util.VisibleBehaviour in project midpoint by Evolveum.

the class WorkItemPanel method initLayout.

protected void initLayout(Form mainForm, PageBase pageBase) {
    WebMarkupContainer additionalInfoColumn = new WebMarkupContainer(ID_ADDITIONAL_INFO_COLUMN);
    WebMarkupContainer historyContainer = new WebMarkupContainer(ID_HISTORY_CONTAINER);
    historyContainer.add(new ItemApprovalHistoryPanel(ID_HISTORY, new PropertyModel<>(getModel(), WorkItemDto.F_WORKFLOW_CONTEXT), UserProfileStorage.TableId.PAGE_WORK_ITEM_HISTORY_PANEL, (int) pageBase.getItemsPerPage(UserProfileStorage.TableId.PAGE_WORK_ITEM_HISTORY_PANEL)));
    final VisibleEnableBehaviour historyContainerVisible = new VisibleEnableBehaviour() {

        @Override
        public boolean isVisible() {
            return getModelObject().hasHistory();
        }
    };
    historyContainer.add(historyContainerVisible);
    historyContainer.add(WebComponentUtil.createHelp(ID_HISTORY_HELP));
    additionalInfoColumn.add(historyContainer);
    WebMarkupContainer relatedWorkItemsContainer = new WebMarkupContainer(ID_RELATED_WORK_ITEMS_CONTAINER);
    final IModel<List<WorkItemDto>> relatedWorkItemsModel = new PropertyModel<>(getModel(), WorkItemDto.F_OTHER_WORK_ITEMS);
    final ISortableDataProvider<WorkItemDto, String> relatedWorkItemsProvider = new ListDataProvider<>(this, relatedWorkItemsModel);
    relatedWorkItemsContainer.add(new WorkItemsPanel(ID_RELATED_WORK_ITEMS, relatedWorkItemsProvider, null, 10, WorkItemsPanel.View.ITEMS_FOR_PROCESS));
    final VisibleEnableBehaviour relatedWorkItemsContainerVisible = new VisibleEnableBehaviour() {

        @Override
        public boolean isVisible() {
            return !relatedWorkItemsModel.getObject().isEmpty();
        }
    };
    relatedWorkItemsContainer.add(relatedWorkItemsContainerVisible);
    relatedWorkItemsContainer.add(WebComponentUtil.createHelp(ID_RELATED_WORK_ITEMS_HELP));
    additionalInfoColumn.add(relatedWorkItemsContainer);
    final WebMarkupContainer relatedWorkflowRequestsContainer = new WebMarkupContainer(ID_RELATED_REQUESTS_CONTAINER);
    final IModel<List<ProcessInstanceDto>> relatedWorkflowRequestsModel = new PropertyModel<>(getModel(), WorkItemDto.F_RELATED_WORKFLOW_REQUESTS);
    final ISortableDataProvider<ProcessInstanceDto, String> relatedWorkflowRequestsProvider = new ListDataProvider<>(this, relatedWorkflowRequestsModel);
    relatedWorkflowRequestsContainer.add(new ProcessInstancesPanel(ID_RELATED_REQUESTS, relatedWorkflowRequestsProvider, null, 10, ProcessInstancesPanel.View.TASKS_FOR_PROCESS, new PropertyModel<>(getModel(), WorkItemDto.F_PROCESS_INSTANCE_ID)));
    final VisibleEnableBehaviour relatedWorkflowRequestsContainerVisible = new VisibleEnableBehaviour() {

        @Override
        public boolean isVisible() {
            return !relatedWorkflowRequestsModel.getObject().isEmpty();
        }
    };
    relatedWorkflowRequestsContainer.add(relatedWorkflowRequestsContainerVisible);
    relatedWorkflowRequestsContainer.add(WebComponentUtil.createHelp(ID_RELATED_REQUESTS_HELP));
    additionalInfoColumn.add(relatedWorkflowRequestsContainer);
    final VisibleEnableBehaviour additionalInfoColumnVisible = new VisibleEnableBehaviour() {

        @Override
        public boolean isVisible() {
            return historyContainerVisible.isVisible() || relatedWorkItemsContainerVisible.isVisible() || relatedWorkflowRequestsContainerVisible.isVisible();
        }
    };
    additionalInfoColumn.add(additionalInfoColumnVisible);
    add(additionalInfoColumn);
    WebMarkupContainer primaryInfoColumn = new WebMarkupContainer(ID_PRIMARY_INFO_COLUMN);
    //		primaryInfoColumn.add(new Label(ID_REQUESTED_BY, new PropertyModel(getModel(), WorkItemDto.F_REQUESTER_NAME)));
    //		primaryInfoColumn.add(new Label(ID_REQUESTED_BY_FULL_NAME, new PropertyModel(getModel(), WorkItemDto.F_REQUESTER_FULL_NAME)));
    //		primaryInfoColumn.add(new Label(ID_REQUESTED_ON, new PropertyModel(getModel(), WorkItemDto.F_STARTED_FORMATTED_FULL)));
    primaryInfoColumn.add(new Label(ID_WORK_ITEM_CREATED_ON, new PropertyModel(getModel(), WorkItemDto.F_CREATED_FORMATTED_FULL)));
    primaryInfoColumn.add(new Label(ID_WORK_ITEM_DEADLINE, new PropertyModel(getModel(), WorkItemDto.F_DEADLINE_FORMATTED_FULL)));
    primaryInfoColumn.add(new Label(ID_ORIGINALLY_ALLOCATED_TO, new PropertyModel(getModel(), WorkItemDto.F_ORIGINAL_ASSIGNEE_FULL)));
    primaryInfoColumn.add(new Label(ID_CURRENTLY_ALLOCATED_TO, new PropertyModel(getModel(), WorkItemDto.F_CURRENT_ASSIGNEES_FULL)));
    primaryInfoColumn.add(new Label(ID_CANDIDATES, new PropertyModel(getModel(), WorkItemDto.F_CANDIDATES)));
    WebMarkupContainer stageInfoContainer = new WebMarkupContainer(ID_STAGE_INFO_CONTAINER);
    primaryInfoColumn.add(stageInfoContainer);
    stageInfoContainer.add(new Label(ID_STAGE_INFO, new PropertyModel<String>(getModel(), WorkItemDto.F_STAGE_INFO)));
    stageInfoContainer.add(new VisibleBehaviour(() -> getModelObject().getStageInfo() != null));
    WebMarkupContainer escalationLevelInfoContainer = new WebMarkupContainer(ID_ESCALATION_LEVEL_INFO_CONTAINER);
    primaryInfoColumn.add(escalationLevelInfoContainer);
    escalationLevelInfoContainer.add(new Label(ID_ESCALATION_LEVEL_INFO, new PropertyModel<String>(getModel(), WorkItemDto.F_ESCALATION_LEVEL_INFO)));
    escalationLevelInfoContainer.add(new VisibleBehaviour(() -> getModelObject().getEscalationLevelInfo() != null));
    WebMarkupContainer requesterCommentContainer = new WebMarkupContainer(ID_REQUESTER_COMMENT_CONTAINER);
    requesterCommentContainer.setOutputMarkupId(true);
    primaryInfoColumn.add(requesterCommentContainer);
    requesterCommentContainer.add(new Label(ID_REQUESTER_COMMENT_MESSAGE, new PropertyModel<String>(getModel(), WorkItemDto.F_REQUESTER_COMMENT)));
    //primaryInfoColumn.add(new ScenePanel(ID_DELTAS_TO_BE_APPROVED, new PropertyModel<SceneDto>(getModel(), WorkItemDto.F_DELTAS)));
    primaryInfoColumn.add(new TaskChangesPanel(ID_DELTAS_TO_BE_APPROVED, new PropertyModel<>(getModel(), WorkItemDto.F_CHANGES)));
    primaryInfoColumn.add(new AttributeModifier("class", new AbstractReadOnlyModel<String>() {

        @Override
        public String getObject() {
            return additionalInfoColumnVisible.isVisible() ? "col-md-5" : "col-md-12";
        }
    }));
    add(primaryInfoColumn);
    add(new AjaxFallbackLink(ID_SHOW_REQUEST) {

        public void onClick(AjaxRequestTarget target) {
            String oid = WorkItemPanel.this.getModelObject().getTaskOid();
            if (oid != null) {
                PageParameters parameters = new PageParameters();
                parameters.add(OnePageParameterEncoder.PARAMETER, oid);
                getPageBase().navigateToNext(PageTaskEdit.class, parameters);
            }
        }
    });
    add(WebComponentUtil.createHelp(ID_SHOW_REQUEST_HELP));
    WebMarkupContainer additionalInformation = new InformationListPanel(ID_ADDITIONAL_INFORMATION, new PropertyModel<>(getModel(), WorkItemDto.F_ADDITIONAL_INFORMATION));
    add(additionalInformation);
    WorkItemDto dto = getModelObject();
    ApprovalStageDefinitionType level = WfContextUtil.getCurrentStageDefinition(dto.getWorkflowContext());
    WebMarkupContainer additionalAttribues = new WebMarkupContainer(ID_ADDITIONAL_ATTRIBUTES);
    add(additionalAttribues);
    additionalAttribues.add(new VisibleEnableBehaviour() {

        private static final long serialVersionUID = 1L;

        public boolean isVisible() {
            return (level != null && level.getFormRef() != null && level.getFormRef().getOid() != null);
        }

        ;
    });
    if (level != null && level.getFormRef() != null && level.getFormRef().getOid() != null) {
        String formOid = level.getFormRef().getOid();
        ObjectType focus = dto.getFocus(pageBase);
        if (focus == null) {
            // TODO FIXME (this should not occur anyway)
            focus = new UserType(pageBase.getPrismContext());
        }
        Task task = pageBase.createSimpleTask(OPERATION_LOAD_CUSTOM_FORM);
        DynamicFormPanel<?> customForm = new DynamicFormPanel<>(ID_CUSTOM_FORM, focus.asPrismObject(), formOid, mainForm, task, pageBase);
        additionalAttribues.add(customForm);
    } else {
        additionalAttribues.add(new Label(ID_CUSTOM_FORM));
    }
    add(new TextArea<>(ID_APPROVER_COMMENT, new PropertyModel<String>(getModel(), WorkItemDto.F_APPROVER_COMMENT)));
}

Example 4 with VisibleBehaviour

use of com.evolveum.midpoint.web.component.util.VisibleBehaviour in project midpoint by Evolveum.

the class InformationPanel method initLayout.

private void initLayout() {
    Label titleLabel = new Label(ID_TITLE, new PropertyModel<>(getModel(), InformationType.F_TITLE.getLocalPart()));
    titleLabel.add(new VisibleBehaviour(() -> getModelObject().getTitle() != null));
    add(titleLabel);
    ListView<InformationPartType> list = new ListView<InformationPartType>(ID_PARTS, new PropertyModel<>(getModel(), InformationType.F_PART.getLocalPart())) {

        @Override
        protected void populateItem(ListItem<InformationPartType> item) {
            InformationPartType part = item.getModelObject();
            Label label = new Label(ID_PART, part.getText());
            if (Boolean.TRUE.equals(part.isHasMarkup())) {
                label.setEscapeModelStrings(false);
            }
            item.add(label);
        }
    };
    add(list);
}

Example 5 with VisibleBehaviour

use of com.evolveum.midpoint.web.component.util.VisibleBehaviour in project midpoint by Evolveum.

the class PageWorkItem method initButtons.

private void initButtons(Form mainForm) {
    VisibleBehaviour isAllowedToSubmit = new VisibleBehaviour(() -> getWorkflowManager().isCurrentUserAuthorizedToSubmit(workItemDtoModel.getObject().getWorkItem()));
    VisibleBehaviour isAllowedToDelegate = new VisibleBehaviour(() -> getWorkflowManager().isCurrentUserAuthorizedToDelegate(workItemDtoModel.getObject().getWorkItem()));
    VisibleBehaviour isAllowedToClaim = new VisibleBehaviour(() -> workItemDtoModel.getObject().getWorkItem().getAssigneeRef() == null && getWorkflowManager().isCurrentUserAuthorizedToClaim(workItemDtoModel.getObject().getWorkItem()));
    VisibleBehaviour isAllowedToRelease = new VisibleBehaviour(() -> {
        WorkItemType workItem = workItemDtoModel.getObject().getWorkItem();
        MidPointPrincipal principal;
        try {
            principal = (MidPointPrincipal) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        } catch (ClassCastException e) {
            return false;
        }
        String principalOid = principal.getOid();
        return workItem.getAssigneeRef() != null && workItem.getAssigneeRef().stream().anyMatch(ref -> ref.getOid().equals(principalOid)) && (!workItem.getCandidateRef().isEmpty());
    });
    AjaxSubmitButton claim = new DefaultAjaxSubmitButton(ID_CLAIM, createStringResource("pageWorkItem.button.claim"), this, (target, form) -> claimPerformed(target));
    claim.add(isAllowedToClaim);
    mainForm.add(claim);
    AjaxSubmitButton release = new DefaultAjaxSubmitButton(ID_RELEASE, createStringResource("pageWorkItem.button.release"), this, (target, form) -> releasePerformed(target));
    release.add(isAllowedToRelease);
    mainForm.add(release);
    AjaxSubmitButton approve = new DefaultAjaxSubmitButton(ID_APPROVE, createStringResource("pageWorkItem.button.approve"), this, (target, form) -> savePerformed(target, true));
    approve.add(isAllowedToSubmit);
    mainForm.add(approve);
    AjaxSubmitButton reject = new DefaultAjaxSubmitButton(ID_REJECT, createStringResource("pageWorkItem.button.reject"), this, (target, form) -> savePerformed(target, false));
    reject.add(isAllowedToSubmit);
    mainForm.add(reject);
    AjaxSubmitButton delegate = new DefaultAjaxSubmitButton(ID_DELEGATE, createStringResource("pageWorkItem.button.delegate"), this, (target, form) -> delegatePerformed(target));
    delegate.add(isAllowedToDelegate);
    mainForm.add(delegate);
    AjaxButton cancel = new DefaultAjaxButton(ID_CANCEL, createStringResource("pageWorkItem.button.cancel"), this::cancelPerformed);
    mainForm.add(cancel);
}