eml.studio.client.ui.panel.LoginPanel.java Source code

Introduction

Here is the source code for eml.studio.client.ui.panel.LoginPanel.java

Source

/**
 * Copyright 2017 Institute of Computing Technology, Chinese Academy of Sciences.
 * Licensed under the terms of the Apache 2.0 license.
 * Please see LICENSE file in the project root for terms
 */
package eml.studio.client.ui.panel;

import eml.studio.client.rpc.AccountService;
import eml.studio.client.rpc.AccountServiceAsync;
import eml.studio.client.util.Constants;
import eml.studio.client.util.UUID;
import eml.studio.client.util.Util;
import com.google.gwt.core.shared.GWT;
import com.google.gwt.dom.client.Style.Cursor;
import com.google.gwt.dom.client.Style.TextAlign;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.Cookies;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;

/**
 * Login Panel
 */
public class LoginPanel extends PopupPanel {
    protected AccountServiceAsync accountSrv = GWT.create(AccountService.class);

    public final Label errorLabel = new Label();
    protected TextBox emailField = new TextBox();
    protected PasswordTextBox passwordField = new PasswordTextBox();
    final CheckBox checkBox = new CheckBox(Constants.logUIMsg.remember());
    final Label guestLabel = new Label(Constants.logUIMsg.guest());
    final Label forgetLabel = new Label(Constants.logUIMsg.forget());
    final Button signinButton = new Button(Constants.logUIMsg.login().toLowerCase());
    final Button signupButton = new Button(Constants.logUIMsg.register());
    private VerticalPanel loginContainer = new VerticalPanel();
    private HorizontalPanel pwdPanel = new HorizontalPanel();
    private HorizontalPanel btnPanel = new HorizontalPanel();

    protected boolean autoLogin = true;

    public LoginPanel() {
        this.setStyleName("bda-login");
        boolean checked = Boolean.parseBoolean(Cookies.getCookie("bdachecked"));
        checkBox.setValue(checked);

        Label emailLabel = new Label(Constants.logUIMsg.email());
        emailField.setStyleName("form-control");
        emailField.setValue(Cookies.getCookie("bdaemail"));
        Label passwordLabel = new Label(Constants.logUIMsg.password());
        passwordField.setStyleName("form-control");
        if (checked)
            passwordField.setValue(UUID.randomID());

        errorLabel.addStyleName("bad-login-error");

        checkBox.setStyleName("bda-login-checkbox");
        forgetLabel.setStyleName("bda-login-forgetpwd");
        pwdPanel.setStyleName("bda-form-group");
        pwdPanel.add(checkBox);
        pwdPanel.add(forgetLabel);

        signinButton.addStyleName("button-style");
        signinButton.getElement().getStyle().setMarginLeft(7, Unit.PX);
        signinButton.getElement().getStyle().setMarginRight(60, Unit.PX);
        signupButton.addStyleName("button-style");
        btnPanel.setStyleName("bda-form-group");
        btnPanel.add(signinButton);
        btnPanel.add(signupButton);

        HorizontalPanel hp = new HorizontalPanel();
        hp.add(emailLabel);
        hp.add(guestLabel);
        guestLabel.getElement().getStyle().setWidth(100, Unit.PX);
        guestLabel.getElement().getStyle().setTextAlign(TextAlign.RIGHT);
        guestLabel.getElement().getStyle().setMarginLeft(80, Unit.PX);
        guestLabel.getElement().getStyle().setCursor(Cursor.POINTER);
        loginContainer.add(hp);
        loginContainer.add(emailField);
        loginContainer.add(passwordLabel);
        loginContainer.add(passwordField);
        loginContainer.add(errorLabel);
        loginContainer.add(pwdPanel);
        loginContainer.add(btnPanel);

        loginContainer.setStyleName("bda-login-form");
        loginContainer.setBorderWidth(0);
        loginContainer.setStyleName((String) null);

        this.add(loginContainer);

        passwordField.addChangeHandler(new ChangeHandler() {

            @Override
            public void onChange(ChangeEvent event) {
                autoLogin = false;
            }

        });

        checkBox.addValueChangeHandler(new ValueChangeHandler() {

            @Override
            public void onValueChange(ValueChangeEvent event) {
                // Window.alert( checkBox.getValue().toString() );
                Cookies.setCookie("bdachecked", checkBox.getValue().toString(), Util.getCookieExpireDate());
                if (!getRemmenber()) {
                    Cookies.removeCookie("bdaserial");
                    Cookies.removeCookie("bdatoken");
                }
            }

        });
    }

    public void addGuestLoginHandler(ClickHandler handler) {
        guestLabel.addClickHandler(handler);
    }

    public void addSignInHandler(ClickHandler handler) {
        signinButton.addClickHandler(handler);
    }

    public void addSignUpHandler(ClickHandler handler) {
        signupButton.addClickHandler(handler);
    }

    public void addForgetPwdHandler(ClickHandler handler) {
        forgetLabel.addClickHandler(handler);
    }

    public String getEmail() {
        return emailField.getValue();
    }

    public String getPassword() {
        return passwordField.getValue();
    }

    public boolean getRemmenber() {
        return checkBox.getValue();
    }

    public boolean getAutoLogin() {
        return autoLogin && getRemmenber();
    }
}