I struggle with Editor framework of gwt. Mostly because the documentation is lame- no hurt feelings- just saying.
Now I have problem that I cannot execute button event on editor. This is my error:
Uncaught com.google.gwt.event.shared.UmbrellaException: Exception caught: (TypeError) : Cannot read property 'onLoginButtonClick_3_g$' of undefined
I am not sure what I am doing wrong. I didn't found any good example of that. I hope someone will help.
Here is my code:
Editor
public class LoginEditor extends ViewWithUiHandlers<LoginEditorUiHandlers> implements Editor<LoginModel> {
private VerticalPanel widget = new VerticalPanel();
MaterialTextBox email = new MaterialTextBox();
MaterialTextBox password = new MaterialTextBox();
MaterialButton btnLogin = new MaterialButton();
public LoginEditor() {
initWidget(widget);
email.setPlaceholder("E-mail");
password.setPlaceholder("Password");
btnLogin.setText("Login");
btnLogin.addClickHandler(new ClickHandler() {
@Override public void onClick(ClickEvent event) {
onLoginButtonClick(event);
}
});
widget.add(email);
widget.add(password);
widget.add(btnLogin);
}
void onLoginButtonClick(ClickEvent e){
getUiHandlers().onLoginButtonClick();
Window.alert("TEST");
}
}
Presenter
public class LoginPresenter extends Presenter<LoginPresenter.MyView, LoginPresenter.MyProxy> implements LoginEditorUiHandlers {
public interface MyView extends View , HasUiHandlers<LoginEditorUiHandlers> {}
public static final Type<RevealContentHandler<?>> SLOT_Login = new Type<RevealContentHandler<?>>();
@ProxyStandard
@NameToken(NameTokens.login)
public interface MyProxy extends ProxyPlace<LoginPresenter> {}
// Editor
interface Driver extends SimpleBeanEditorDriver<LoginModel, LoginEditor> {}
private static final LoginService service = GWT.create(LoginService.class);
Driver editorDriver = GWT.create(Driver.class);
private LoginModel model = new LoginModel("email","pass");
private LoginEditor editor = new LoginEditor();
@Override
public void onLoginButtonClick() {
MaterialToast.fireToast("TEST");
try{
System.out.println(editorDriver == null);
System.out.println(editorDriver.isDirty());
editorDriver.isDirty();
} catch (NullPointerException e) {
MaterialToast.fireToast("Null: " + e.getLocalizedMessage());
}
if (editorDriver.isDirty()) {
model = editorDriver.flush();
if (editorDriver.hasErrors()) {
StringBuilder errorBuilder = new StringBuilder();
for (EditorError error : editorDriver.getErrors()) {
errorBuilder.append(error.getMessage() + "\n");
}
MaterialToast.fireToast(errorBuilder.toString());
} else {
service.login(
model, new MethodCallback<Integer>() {
@Override
public void onSuccess(Method method, Integer response) {
MaterialToast.fireToast("Succefully set info. status code: " + response);
}
@Override
public void onFailure(Method method, Throwable exception) {
MaterialToast.fireToast("Error setting");
}
});
}
} else {
MaterialToast.fireToast("Data has not changed");
}
}
@Inject
LoginPresenter(
EventBus eventBus,
MyView view,
MyProxy proxy) {
super(eventBus, view, proxy, RevealType.Root);
editorDriver.initialize(editor);
editorDriver.edit(model);
getView().setUiHandlers(this);
}
}
View
public class LoginView extends ViewWithUiHandlers<LoginEditorUiHandlers> implements LoginPresenter.MyView {
interface Binder extends UiBinder<Widget, LoginView> {
}
@Inject
LoginView(Binder uiBinder) {
initWidget(uiBinder.createAndBindUi(this));
}
}
View.ui.xml
<m:MaterialRow ui:field="loginWidget">
<m:MaterialColumn grid="s12 m4 l4" offset="l4" >
<m:MaterialTitle title="Login" description="Please provide your account credentials."/>
<m:MaterialPanel padding="5" shadow="1" addStyleNames="{style.panel}">
<m:MaterialPanel addStyleNames="{style.fieldPanel}">
<e:LoginEditor></e:LoginEditor>
</m:MaterialPanel>
</m:MaterialPanel>
</m:MaterialColumn>
</m:MaterialRow>
UiHandlers
interface LoginEditorUiHandlers extends UiHandlers {
void onLoginButtonClick();
}
interface LoginUiHandlers extends UiHandlers {
}
Here is working solution:
Presenter
package pl.korbeldaniel.cms.client.login;
import java.util.ArrayList;
import java.util.Set;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import org.fusesource.restygwt.client.Method;
import org.fusesource.restygwt.client.MethodCallback;
import gwt.material.design.client.ui.MaterialToast;
import com.google.gwt.core.shared.GWT;
import com.google.gwt.editor.client.EditorError;
import com.google.gwt.editor.client.SimpleBeanEditorDriver;
import com.google.gwt.event.shared.GwtEvent.Type;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.inject.Inject;
import com.google.web.bindery.event.shared.EventBus;
import com.gwtplatform.mvp.client.Presenter;
import com.gwtplatform.mvp.client.annotations.ProxyStandard;
import com.gwtplatform.mvp.client.proxy.ProxyPlace;
import com.gwtplatform.mvp.client.annotations.NameToken;
import com.gwtplatform.mvp.client.proxy.RevealContentHandler;
import com.gwtplatform.mvp.client.HasUiHandlers;
import pl.korbeldaniel.cms.client.editor.BeanEditView;
import pl.korbeldaniel.cms.client.model.LoginModel;
import pl.korbeldaniel.cms.client.place.NameTokens;
import pl.korbeldaniel.cms.client.service.LoginService;
public class LoginPresenter extends Presenter<LoginPresenter.MyView, LoginPresenter.MyProxy> implements LoginUiHandlers {
public interface MyView extends BeanEditView<LoginModel>, HasUiHandlers<LoginUiHandlers> {}
public static final Type<RevealContentHandler<?>> SLOT_Login = new Type<RevealContentHandler<?>>();
@ProxyStandard
@NameToken(NameTokens.login)
public interface MyProxy extends ProxyPlace<LoginPresenter> {}
// Editor
private SimpleBeanEditorDriver<LoginModel, ?> editorDriver;
private static final LoginService service = GWT.create(LoginService.class);
private LoginModel model = new LoginModel("","");
@Override
public void onLoginButtonClick() {
String msg = "User Pressed a button.";
GWT.log(msg);
if (editorDriver.isDirty()) {
model = editorDriver.flush();
validateModel();
GWT.log(String.valueOf(editorDriver.hasErrors()));
if (editorDriver.hasErrors()) {
MaterialToast.fireToast("Errors occur");
StringBuilder errorBuilder = new StringBuilder();
for (EditorError error : editorDriver.getErrors()) {
GWT.log(error.getMessage());
errorBuilder.append(error.getMessage() + "\n");
}
//MaterialToast.fireToast(errorBuilder.toString());
RootPanel.get().add(new Label(errorBuilder.toString()));
} else {
service.login(
model, new MethodCallback<Integer>() {
@Override
public void onSuccess(Method method, Integer response) {
MaterialToast.fireToast("Succefully set info. status code: " + response);
}
@Override
public void onFailure(Method method, Throwable exception) {
MaterialToast.fireToast("Error setting");
}
});
}
} else {
MaterialToast.fireToast("Data has not changed");
}
}
private void validateModel() {
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<LoginModel>> violations = validator.validate(model);
GWT.log(String.valueOf(violations.size()));
if (violations.size() > 0) {
editorDriver.setConstraintViolations(new ArrayList<ConstraintViolation<?>>(violations));
}
}
@Inject
LoginPresenter(EventBus eventBus,MyView view, MyProxy proxy) {
super(eventBus, view, proxy, RevealType.Root);
getView().setUiHandlers(this);
editorDriver = getView().createEditorDriver();
editorDriver.edit(model);
}
}
View/Editor
package pl.korbeldaniel.cms.client.login;
import gwt.material.design.client.ui.MaterialButton;
import gwt.material.design.client.ui.MaterialCheckBox;
import gwt.material.design.client.ui.MaterialTextBox;
import javax.inject.Inject;
import pl.korbeldaniel.cms.client.model.LoginModel;
import com.google.gwt.core.client.GWT;
import com.google.gwt.editor.client.SimpleBeanEditorDriver;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Widget;
import com.gwtplatform.mvp.client.ViewWithUiHandlers;
public class LoginView extends ViewWithUiHandlers<LoginUiHandlers> implements LoginPresenter.MyView {
interface Binder extends UiBinder<Widget, LoginView> {}
/** The driver to link the proxy bean with the view. */
public interface EditorDriver extends SimpleBeanEditorDriver<LoginModel, LoginView> { }
@UiField MaterialTextBox email;
@UiField MaterialTextBox password;
@UiField MaterialButton loginButton;
@UiField MaterialCheckBox keepMeLoggedInCheckbox;
@Inject
LoginView(Binder uiBinder) {
initWidget(uiBinder.createAndBindUi(this));
addClickHandlerToLoginButton();
}
//@UiHandler("loginButton")
private void onLoginButtonClick(ClickEvent e){
getUiHandlers().onLoginButtonClick();
}
private void addClickHandlerToLoginButton() {
loginButton.addClickHandler(new ClickHandler() {
@Override public void onClick(ClickEvent event) {
onLoginButtonClick(event);
}
});
}
@Override
public SimpleBeanEditorDriver<LoginModel, ?> createEditorDriver() {
EditorDriver driver = GWT.create(EditorDriver.class);
driver.initialize(this);
return driver;
}
}
ValidatorFactory
package pl.korbeldaniel.cms.client.login;
import javax.validation.Validator;
import pl.korbeldaniel.cms.client.model.LoginModel;
import com.google.gwt.core.client.GWT;
import com.google.gwt.validation.client.AbstractGwtValidatorFactory;
import com.google.gwt.validation.client.GwtValidation;
import com.google.gwt.validation.client.impl.AbstractGwtValidator;
public final class SampleValidatorFactory extends AbstractGwtValidatorFactory {
/**
* Validator marker for the Validation Sample project. Only the classes and
* groups listed in the {@link GwtValidation} annotation can be validated.
*/
@GwtValidation(LoginModel.class)
public interface GwtValidator extends Validator {
}
@Override
public AbstractGwtValidator createValidator() {
return GWT.create(GwtValidator.class);
}
}
UiHandlers
package pl.korbeldaniel.cms.client.login;
import com.gwtplatform.mvp.client.UiHandlers;
interface LoginUiHandlers extends UiHandlers {
void onLoginButtonClick();
}
Bean edit view interface
package pl.korbeldaniel.cms.client.editor;
import com.google.gwt.editor.client.Editor;
import com.google.gwt.editor.client.SimpleBeanEditorDriver;
import com.gwtplatform.mvp.client.View;
/**
* Implemented by views that edit beans.
*
* @param <B> the type of the bean
*/
public interface BeanEditView<B> extends View, Editor<B> {
/**
* @return a new {@link SimpleBeanEditorDriver} initialized to run this editor
*/
SimpleBeanEditorDriver<B, ?> createEditorDriver();
}
I hope it will help some one.