Example usage for com.vaadin.data HasValue isEmpty

Introduction

In this page you can find the example usage for com.vaadin.data HasValue isEmpty.

Prototype

public default boolean isEmpty() 

Source Link

Document

Returns whether this HasValue is considered to be empty.

Usage

From source file:org.jpos.qi.QIEntityView.java

License:Open Source License

public Layout createForm(final Object entity, String[] params, boolean isNew) {
    VerticalLayout profileLayout = new VerticalLayout();
    profileLayout.setMargin(true);/*ww  w. jav  a 2  s  .c o m*/
    profileLayout.setSpacing(true);

    //Add Back Button
    if (params.length <= 1 || !"profile".equals(params[1])) {
        Button back = new Button(getApp().getMessage("back"));
        back.addStyleName("borderless-colored");
        back.setIcon(VaadinIcons.ARROW_LEFT);
        back.addClickListener(event -> app.getNavigator().navigateTo(getGeneralRoute()));
        profileLayout.addComponent(back);
        profileLayout.setComponentAlignment(back, Alignment.MIDDLE_LEFT);
    }

    binder = new Binder<T>(clazz) {
        @Override
        public void setReadOnly(boolean readOnly) {
            super.setReadOnly(readOnly);
            if (readOnlyFields != null) {
                for (String fieldId : readOnlyFields) {
                    if (binder.getBinding(fieldId).isPresent()) {
                        HasValue field = binder.getBinding(fieldId).get().getField();
                        if ((field != null && !field.isEmpty()) || !field.isRequiredIndicatorVisible()) {
                            field.setReadOnly(true);
                            binder.bind(field, fieldId);
                        }
                    }

                }
            }
        }
    };
    bean = (T) entity;
    final Layout formLayout = createLayout();
    getHelper().setOriginalEntity(bean);
    binder.readBean((T) entity);
    binder.setReadOnly(true);
    profileLayout.addComponent(formLayout);

    HorizontalLayout footer = new HorizontalLayout();
    footer.addStyleName("footer");
    footer.setMargin(new MarginInfo(true, false, false, false));
    footer.setSpacing(true);
    formLayout.addComponent(footer);

    //Add Save, Remove & Cancel Buttons
    editBtn = new Button(app.getMessage("edit"));
    removeBtn = new Button(app.getMessage("remove"));
    saveBtn = new Button(app.getMessage("save"));
    cancelBtn = new Button(app.getMessage("cancel"));

    editBtn.addClickListener(event -> editClick(event, formLayout));
    editBtn.addStyleName("icon-edit");

    saveBtn.addClickListener(event -> saveClick(event, formLayout));
    saveBtn.setVisible(false);
    saveBtn.setStyleName("icon-ok");
    saveBtn.setClickShortcut(ShortcutAction.KeyCode.ENTER);

    removeBtn.addClickListener(event -> app.addWindow(new ConfirmDialog(app.getMessage("confirmTitle"),
            app.getMessage("removeConfirmationMessage"), confirm -> {
                if (confirm) {
                    removeEntity();
                }
            })));
    removeBtn.addStyleName("icon-trash");

    cancelBtn.addClickListener(event -> {
        if (isNew) {
            app.getNavigator().navigateTo(getGeneralRoute());
        } else {
            cancelClick(event, formLayout);
        }
    });

    cancelBtn.setClickShortcut(ShortcutAction.KeyCode.ESCAPE);
    cancelBtn.setVisible(false);
    cancelBtn.addStyleName("icon-cancel");

    if (canEdit()) {
        footer.addComponent(editBtn);
        footer.addComponent(saveBtn);
        footer.addComponent(cancelBtn);
        footer.setComponentAlignment(editBtn, Alignment.MIDDLE_RIGHT);
        footer.setComponentAlignment(saveBtn, Alignment.MIDDLE_RIGHT);
        footer.setComponentAlignment(cancelBtn, Alignment.MIDDLE_RIGHT);
    }
    if (canRemove()) {
        footer.addComponent(removeBtn);
        footer.setComponentAlignment(removeBtn, Alignment.MIDDLE_RIGHT);
    }
    if (isNew) {
        editBtn.click();
    }
    errorLabel = new Label();
    errorLabel.setVisible(false);
    errorLabel.setStyleName(ValoTheme.LABEL_FAILURE);
    profileLayout.addComponent(errorLabel);
    return profileLayout;
}

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