LoginView.java
/*
** Module : LoginView.java
** Abstract : LoginView represents a login form view.
**
** Copyright (c) 2017, Golden Code Development Corporation.
**
** -#- -I- --Date-- ----------------Description----------------------
** 001 HC 20170228 Created initial version.
** 002 SBI 20170531 Changed text controls to use gwtbootstrap3, fixed "Enter pressed" handlers.
** 003 EVL 20170926 Javadoc fix.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
**
** Additional terms under GNU Affero GPL version 3 section 7:
**
** Under Section 7 of the GNU Affero GPL version 3, the following additional
** terms apply to the works covered under the License. These additional terms
** are non-permissive additional terms allowed under Section 7 of the GNU
** Affero GPL version 3 and may not be removed by you.
**
** 0. Attribution Requirement.
**
** You must preserve all legal notices or author attributions in the covered
** work or Appropriate Legal Notices displayed by works containing the covered
** work. You may not remove from the covered work any author or developer
** credit already included within the covered work.
**
** 1. No License To Use Trademarks.
**
** This license does not grant any license or rights to use the trademarks
** Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
** of Golden Code Development Corporation. You are not authorized to use the
** name Golden Code, FWD, or the names of any author or contributor, for
** publicity purposes without written authorization.
**
** 2. No Misrepresentation of Affiliation.
**
** You may not represent yourself as Golden Code Development Corporation or FWD.
**
** You may not represent yourself for publicity purposes as associated with
** Golden Code Development Corporation, FWD, or any author or contributor to
** the covered work, without written authorization.
**
** 3. No Misrepresentation of Source or Origin.
**
** You may not represent the covered work as solely your work. All modified
** versions of the covered work must be marked in a reasonable way to make it
** clear that the modified work is not originating from Golden Code Development
** Corporation or FWD. All modified versions must contain the notices of
** attribution required in this license.
*/
package com.goldencode.p2j.admin.client.application.login;
import org.gwtbootstrap3.client.ui.Button;
import org.gwtbootstrap3.client.ui.TextBox;
import com.goldencode.p2j.security.*;
import com.google.gwt.dom.client.Document;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.gwtplatform.mvp.client.ViewWithUiHandlers;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
/**
* Login view.
*/
public class LoginView
extends ViewWithUiHandlers<LoginUiHandlers>
implements LoginPresenter.MyView
{
/**
* GWT binder.
*/
interface Binder
extends UiBinder<Widget, LoginView>
{}
/** Widget */
@UiField
TextBox userid;
/** Widget */
@UiField(provided = true)
TextBox pwd = new TextBox(Document.get().createPasswordInputElement());
/** Widget */
@UiField
Button submit;
/**
* Ctor.
*
* @param binder
* GWT binder.
*/
@Inject
public LoginView(Binder binder)
{
initWidget(binder.createAndBindUi(this));
}
/**
* Displays login error to the user.
*
* @param code
* The error code.
*/
@Override
public void reportLoginError(int code)
{
StringBuilder sb = new StringBuilder();
sb.append("Login failed.");
switch (code)
{
case SecurityConstants.AUTH_RESULT_INVALID_USERID:
case SecurityConstants.AUTH_RESULT_INVALID_PASSWORD:
sb.append(" Invalid user name or password.");
break;
case SecurityConstants.AUTH_RESULT_INSUFFICIENT_RIGHTS:
sb.append(" Insufficient account rights.");
break;
}
Window.alert(sb.toString());
}
/**
* Report unspecified login failure to the user.
*/
@Override
public void reportFailure()
{
Window.alert("Unspecified login failure, please try again later!");
}
/**
* Clears the password input box.
*/
@Override
public void clearPassword()
{
pwd.setValue("");
}
/**
* Click event handler.
*
* @param e
* Click event.
*/
@UiHandler("submit")
public void onClick(ClickEvent e)
{
login();
}
/**
* Key press event handler.
*
* @param event
* Key press event.
*/
@UiHandler("userid")
public void useridKeyPress(KeyPressEvent event)
{
if(event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER)
{
pwd.setFocus(true);
}
}
/**
* Key press event handler.
*
* @param event
* Key press event.
*/
@UiHandler("pwd")
public void pwdKeyPress(KeyPressEvent event)
{
if(event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER)
{
login();
}
}
/**
* Method called after the view is attached to the DOM.
* <p>
* You should override this method to perform any ui related initialization that needs to be
* done after that the
* view is attached <b>and that the presenter doesn't have to be aware of</b> (attach event
* handlers for instance)
*/
@Override
protected void onAttach()
{
super.onAttach();
userid.setFocus(true);
}
/**
* Proceeds with login.
*/
private void login()
{
getUiHandlers().onSubmitLoginInfo(userid.getValue(), pwd.getValue());
}
}