com.agnie.useradmin.landing.client.ui.DeskChangePasswordView.java Source code

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Here is the source code for com.agnie.useradmin.landing.client.ui.DeskChangePasswordView.java

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/*******************************************************************************
 * Copyright (c) 2014 Agnie Technologies.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Agnie Technologies - initial API and implementation
 ******************************************************************************/
package com.agnie.useradmin.landing.client.ui;

import java.util.ArrayList;
import java.util.List;

import com.agnie.common.gwt.serverclient.client.helper.URLInfo;
import com.agnie.common.util.client.validator.ConstraintRegularExpressions;
import com.agnie.gwt.common.client.helper.SHA256;
import com.agnie.gwt.common.client.widget.FormFieldContainer;
import com.agnie.gwt.common.client.widget.MessagePanel;
import com.agnie.gwt.common.client.widget.MessagePanel.MessageType;
import com.agnie.useradmin.landing.client.injector.MVPInjector;
import com.agnie.useradmin.landing.client.presenter.ChangePasswordPresenter;
import com.agnie.useradmin.persistance.client.helper.UserAdminURLGenerator;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.google.inject.Singleton;

@Singleton
public class DeskChangePasswordView extends Composite implements ChangePasswordView {

    @Inject
    ChangePasswordPresenter presenter;
    @Inject
    MVPInjector injector;
    @Inject
    URLInfo urlInfo;
    @Inject
    UserAdminURLGenerator uaUrlGenerator;
    @Inject
    MessagePanel messagePanel;
    @UiField
    FormFieldContainer oldPassContainer;
    @UiField
    FormFieldContainer paswdtbContainer;
    @UiField
    FormFieldContainer confpaswdtbContainer;

    interface MyUiBinder extends UiBinder<Widget, DeskChangePasswordView> {
    }

    private static MyUiBinder uiBinder = GWT.create(MyUiBinder.class);

    @UiField
    PasswordTextBox oldPass;
    @UiField
    PasswordTextBox newPass;
    @UiField
    PasswordTextBox confPass;

    @UiField
    Button submitBtn;
    @UiField
    Button cancelBtn;

    private boolean dirtyFlag = false;
    private boolean actionComplete = false;
    private List<HandlerRegistration> handlerReg = new ArrayList<HandlerRegistration>();

    public DeskChangePasswordView() {
        initWidget(uiBinder.createAndBindUi(this));

    }

    private void addKeyPressHandlers() {
        KeyPressHandler handler = new KeyPressHandler() {
            @Override
            public void onKeyPress(KeyPressEvent event) {
                dirtyFlag = true;
                clearHandlerRegistration();
            }
        };

        handlerReg.add(oldPass.addKeyPressHandler(handler));
        handlerReg.add(newPass.addKeyPressHandler(handler));
        handlerReg.add(confPass.addKeyPressHandler(handler));

    }

    private void clearHandlerRegistration() {
        for (int i = 0; i < handlerReg.size(); i++) {
            handlerReg.get(i).removeHandler();
        }
        // before adding new set of handlers clearing existing list.
        handlerReg.clear();
    }

    private boolean validate() {
        boolean valid = true;
        String token = oldPass.getText();
        if (token == null || token.isEmpty()) {
            valid = false;
            oldPassContainer.setError(com.agnie.useradmin.common.client.I18.errorMessages.required(), false);
        }

        token = newPass.getText();
        if (token == null || token.isEmpty()) {
            valid = false;
            paswdtbContainer.setError(com.agnie.useradmin.common.client.I18.errorMessages.required(), false);
        } else if (!ConstraintRegularExpressions.validateWhiteSpace(token)) {
            paswdtbContainer.setError(com.agnie.useradmin.common.client.I18.errorMessages.noWhiteSpace(), false);
            valid = false;
        }
        token = confPass.getText();
        if (token == null || token.isEmpty()) {
            valid = false;
            confpaswdtbContainer.setError(com.agnie.useradmin.common.client.I18.errorMessages.required(), false);
        } else if (newPass.getText() != null && !newPass.getText().equals(token)) {
            valid = false;
            messagePanel.show(true);
            messagePanel.setMessage(com.agnie.useradmin.common.client.I18.errorMessages.password_shld_match());
            messagePanel.setType(MessageType.ERROR);
            newPass.setText("");
            confPass.setText("");
        }
        return valid;
    }

    private void containerErrorFixed() {
        paswdtbContainer.errorFixed();
        confpaswdtbContainer.errorFixed();
        oldPassContainer.errorFixed();
    }

    public void reset() {
        oldPass.setText("");
        newPass.setText("");
        confPass.setText("");

        dirtyFlag = false;
        actionComplete = false;
        containerErrorFixed();
        addKeyPressHandlers();
    }

    @UiHandler("cancelBtn")
    public void cancel(ClickEvent event) {
        Window.Location.assign(uaUrlGenerator.getSourceUrl(urlInfo));
    }

    @UiHandler("submitBtn")
    public void submit(ClickEvent event) {
        containerErrorFixed();
        if (validate()) {
            presenter.resetPassword(SHA256.getSHA256Base64(oldPass.getText()),
                    SHA256.getSHA256Base64(newPass.getText()));
            actionComplete = true;
        }
    }

    @Override
    public boolean shouldWeProceed() {
        if (!actionComplete) {
            if (dirtyFlag) {
                return Window.confirm("Do you want to proceed");
            } else {
                return (true);
            }
        } else {
            return (true);
        }
    }

    @Override
    public void setDefaultFocus() {
        this.oldPass.setFocus(true);
    }

    ViewFactory getViewFactory() {
        return injector.getDesktopViewFactory();
    }
}