Java 类com.vaadin.ui.AbstractSelect.NewItemHandler 实例源码

/**
 * Instantiates a new persist selector strategy field.
 */
public PersistSelectorStrategyField() {
    combo.setCaption("Class Name");
    combo.addItem("org.opennms.netmgt.collectd.PersistAllSelectorStrategy"); // To avoid requires opennms-services
    combo.addItem("org.opennms.netmgt.collectd.PersistRegexSelectorStrategy"); // To avoid requires opennms-services
    combo.setNullSelectionAllowed(false);
    combo.setRequired(true);
    combo.setImmediate(true);
    combo.setNewItemsAllowed(true);
    combo.setNewItemHandler(new NewItemHandler() {
        public void addNewItem(String newItemCaption) {
            if (!combo.containsId(newItemCaption)) {
                combo.addItem(newItemCaption);
                combo.setValue(newItemCaption);
            }
        }
    });

    table.setCaption("Parameters");
    table.setContainerDataSource(container);
    table.setStyleName(Runo.TABLE_SMALL);
    table.setVisibleColumns(new Object[]{"key", "value"});
    table.setColumnHeader("key", "Parameter Name");
    table.setColumnHeader("value", "Parameter Value");
    table.setColumnExpandRatio("value", 1);
    table.setEditable(!isReadOnly());
    table.setSelectable(true);
    table.setHeight("125px");
    table.setWidth("100%");

    add = new Button("Add", (Button.ClickListener) this);
    delete = new Button("Delete", (Button.ClickListener) this);
    toolbar.addComponent(add);
    toolbar.addComponent(delete);
    toolbar.setVisible(table.isEditable());

    VerticalLayout layout = new VerticalLayout();
    layout.addComponent(combo);
    layout.addComponent(table);
    layout.addComponent(toolbar);
    layout.setComponentAlignment(toolbar, Alignment.MIDDLE_RIGHT);

    setCompositionRoot(layout);
}

/**
 * Instantiates a new storage strategy field.
 */
public StorageStrategyField() {
    combo.setCaption("Class Name");
    combo.addItem(IndexStorageStrategy.class.getName());
    combo.addItem(SiblingColumnStorageStrategy.class.getName());
    combo.setNullSelectionAllowed(false);
    combo.setRequired(true);
    combo.setNewItemsAllowed(true);
    combo.setNewItemHandler(new NewItemHandler() {
        public void addNewItem(String newItemCaption) {
            if (!combo.containsId(newItemCaption)) {
                combo.addItem(newItemCaption);
                combo.setValue(newItemCaption);
            }
        }
    });

    table.setCaption("Parameters");
    table.setContainerDataSource(container);
    table.setStyleName(Runo.TABLE_SMALL);
    table.setVisibleColumns(new Object[]{"key", "value"});
    table.setColumnHeader("key", "Parameter Name");
    table.setColumnHeader("value", "Parameter Value");
    table.setColumnExpandRatio("value", 1);
    table.setEditable(!isReadOnly());
    table.setSelectable(true);
    table.setHeight("125px");
    table.setWidth("100%");

    add = new Button("Add", (Button.ClickListener) this);
    delete = new Button("Delete", (Button.ClickListener) this);
    toolbar.addComponent(add);
    toolbar.addComponent(delete);
    toolbar.setVisible(table.isEditable());

    VerticalLayout layout = new VerticalLayout();
    layout.addComponent(combo);
    layout.addComponent(table);
    layout.addComponent(toolbar);
    layout.setComponentAlignment(toolbar, Alignment.MIDDLE_RIGHT);

    setWriteThrough(false);
    setCompositionRoot(layout);
}

private TargetLine insertTargetLine(final int row)
{
    final List<EmailAddressType> targetTypes = getTargetTypes();

    EmailForm.this.grid.insertRow(row);
    this.grid.setCursorY(row);
    this.grid.setCursorX(0);

    final TargetLine line = new TargetLine();
    line.row = row;

    line.targetTypeCombo = new ComboBox(null, targetTypes);
    line.targetTypeCombo.setWidth("100");
    line.targetTypeCombo.select(targetTypes.get(0));
    this.grid.addComponent(line.targetTypeCombo);

    line.targetAddress = new ComboBox(null);
    this.grid.addComponent(line.targetAddress);
    line.targetAddress.setImmediate(true);
    line.targetAddress.setTextInputAllowed(true);
    line.targetAddress.setInputPrompt("Enter Contact Name or email address");
    line.targetAddress.setWidth("100%");
    line.targetAddress.addValidator(new EmailValidator("Please enter a valid email address."));

    line.targetAddress.setContainerDataSource(getValidEmailContacts());
    line.targetAddress.setItemCaptionPropertyId("namedemail");
    line.targetAddress.setNewItemsAllowed(true);

    line.targetAddress.setNewItemHandler(new NewItemHandler()
    {
        private static final long serialVersionUID = 1L;

        @Override
        public void addNewItem(final String newItemCaption)
        {
            final IndexedContainer container = (IndexedContainer) line.targetAddress.getContainerDataSource();

            final Item item = addItem(container, "", newItemCaption);
            if (item != null)
            {
                line.targetAddress.addItem(item.getItemProperty("id").getValue());
                line.targetAddress.setValue(item.getItemProperty("id").getValue());
            }
        }
    });

    line.minusButton = new Button("-");
    line.minusButton.setDescription("Click to remove this email address line.");
    line.minusButton.setData(line);
    line.minusButton.setStyleName(Reindeer.BUTTON_SMALL);
    this.grid.addComponent(line.minusButton);
    final Action1<ClickEvent> minusClickAction = new MinusClickAction();

    line.buttonSubscription = ButtonEventSource.fromActionOf(line.minusButton).subscribe(minusClickAction);

    this.lines.add(line);

    return line;
}

/**
 * Adds an handler for new items
 * @param newItemHandler New items handler
 */
public void setNewItemHandler(NewItemHandler newItemHandler) {
    getInternalField().setNewItemHandler(newItemHandler);
}

/**
 * Gets the handler for new items
 * @return the new items handler
 */
public NewItemHandler getNewItemHandler() {
    return getInternalField().getNewItemHandler();
}