/**
* ************************************* Performs the login with the data from the input fields.
*/
protected void login() {
aLoginButton.setEnabled(false);
String sUserName = bReauthenticate ? Cookies.getCookie(sUserCookie) : aUserField.getText();
String sPassword = aPasswordField.getText();
setUserNameCookie(sUserName);
ServiceRegistry.getCommandService()
.executeCommand(
AuthenticatedService.LOGIN,
createLoginData(sUserName, sPassword),
new AsyncCallback<DataElementList>() {
@Override
public void onFailure(Throwable rCaught) {
handleLoginFailure(rCaught);
}
@Override
public void onSuccess(DataElementList rResult) {
handleLoginSuccess(rResult);
}
});
}
/** ************************************* Sets the focus to the first input field. */
public void requestFocus() {
if (aUserField != null && aUserField.getText().length() == 0) {
aUserField.requestFocus();
} else {
aPasswordField.requestFocus();
}
}
/**
* ************************************* Adds the components for the user input.
*
* @param rBuilder The builder to create the components with
* @param sUserName The user name preset
* @param bReauthenticate TRUE for a re-authentication of the current user
* @return The user input field or NULL if no user input is needed (in the case of
* re-authentication)
*/
protected TextField addUserComponents(
ContainerBuilder<?> rBuilder, String sUserName, boolean bReauthenticate) {
TextField aUserInputField = null;
rBuilder.addLabel(
StyleData.DEFAULT.setFlags(StyleFlag.HORIZONTAL_ALIGN_RIGHT), "$lblLoginName", null);
if (bReauthenticate) {
rBuilder.addLabel(StyleData.DEFAULT, sUserName, null);
} else {
aUserInputField = rBuilder.addTextField(StyleData.DEFAULT, "");
aUserInputField.setText(sUserName);
}
return aUserInputField;
}
/**
* ************************************* Handles events in the login components.
*
* @param rEvent The event that occurred
*/
@Override
public void handleEvent(EWTEvent rEvent) {
if (rEvent.getSource() == aUserField) {
aPasswordField.requestFocus();
} else // return in password field or login button
{
login();
}
}
/** ************************************* {@inheritDoc} */
@Override
protected void addComponents() {
ContainerBuilder<Panel> aBuilder = createLoginComponentsPanel(AlignedPosition.CENTER);
String sUserName = Cookies.getCookie(sUserCookie);
addLoginPanelHeader(aBuilder, AlignedPosition.TOP);
aUserField = addUserComponents(aBuilder, sUserName, bReauthenticate);
aPasswordField = addPasswortComponents(aBuilder);
aFailureMessage = addFailureMessageComponents(aBuilder);
aLoginButton = addSubmitLoginComponents(aBuilder);
if (aUserField != null) {
aUserField.addEventListener(EventType.ACTION, this);
}
aPasswordField.addEventListener(EventType.ACTION, this);
aLoginButton.addEventListener(EventType.ACTION, this);
aFailureMessage.setVisible(false);
}
/**
* ************************************* Handles a successful authentication by invoking the login
* method {@link LoginHandler#loginSuccessful(DataElementList)}.
*
* @param rUserData The user data instance returned by the service
*/
protected void handleLoginSuccess(DataElementList rUserData) {
String sSessionID = rUserData.getProperty(AuthenticatedService.SESSION_ID, null);
if (sSessionID == null) {
throw new IllegalArgumentException("No Session ID in user data");
}
if (aPasswordField != null) {
aPasswordField.setText("");
aFailureMessage.setVisible(false);
aUserField = null;
aPasswordField = null;
}
Cookies.setCookie(sSessionCookie, sSessionID);
rLoginHandler.loginSuccessful(rUserData);
}
