/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtGui>+
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#include <QtWebKit>+
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#include <QSslSocket>+
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+
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#include "googlechat.h"+
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+
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#define GOOGLECHAT_URL "http://talkgadget.google.com/talkgadget/m"+
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+
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GoogleChat::GoogleChat(): QWidget() {+
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    form.setupUi(this);+
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    setFixedSize(320, 480);+
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+
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    form.userNameEdit->setFocus();+
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    connect(form.userNameEdit, SIGNAL(textChanged(QString)), SLOT(adjustLoginButton()));+
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    connect(form.userNameEdit, SIGNAL(returnPressed()), SLOT(inputPassword()));+
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+
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    connect(form.passwordEdit, SIGNAL(textChanged(QString)), SLOT(adjustLoginButton()));+
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    connect(form.passwordEdit, SIGNAL(returnPressed()), SLOT(doLogin()));+
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+
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    form.loginButton->setEnabled(false);+
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    connect(form.loginButton, SIGNAL(clicked()), SLOT(doLogin()));+
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+
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    connect(form.webView, SIGNAL(loadFinished(bool)), SLOT(initialPage(bool)));+
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    connect(form.webView, SIGNAL(loadProgress(int)),+
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            form.progressBar, SLOT(setValue(int)));+
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    form.webView->setUrl((QUrl(GOOGLECHAT_URL)));+
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    form.webView->setContextMenuPolicy(Qt::PreventContextMenu);+
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+
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    showStatus("Wait...");+
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}+
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+
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void GoogleChat::showStatus(const QString &msg) {+
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    form.statusLabel->setText(msg);+
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    form.stackedWidget->setCurrentIndex(0);+
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}+
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+
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void GoogleChat::showError(const QString &msg) {+
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    form.progressBar->hide();+
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    showStatus(QString("Error: %1").arg(msg));+
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}+
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+
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QWebElement GoogleChat::document() const {+
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    return form.webView->page()->mainFrame()->documentElement();+
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}+
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+
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void GoogleChat::adjustLoginButton() {+
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    userName = form.userNameEdit->text();+
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    password = form.passwordEdit->text();+
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    bool ok = !userName.isEmpty() && !password.isEmpty();+
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    form.loginButton->setEnabled(ok);+
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}+
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+
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void GoogleChat::inputPassword() {+
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    if (!form.userNameEdit->text().isEmpty())+
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        form.passwordEdit->setFocus();+
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}+
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+
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void GoogleChat::doLogin() {+
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    userName = form.userNameEdit->text();+
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    password = form.passwordEdit->text();+
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    bool ok = !userName.isEmpty() && !password.isEmpty();+
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    if (!ok)+
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        return;+
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+
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    form.progressBar->setValue(0);+
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    form.progressBar->show();+
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    connect(form.webView, SIGNAL(loadFinished(bool)), SLOT(loginPage(bool)));+
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    connect(form.webView, SIGNAL(loadProgress(int)),+
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            form.progressBar, SLOT(setValue(int)));+
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    showStatus("Logging in...");+
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+
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    QString userEmail = userName + "@gmail.com";+
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+
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    document().findFirst("#Email").setAttribute("value", userEmail);+
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    document().findFirst("#Passwd").setAttribute("value", password);+
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    document().findFirst("#gaia_loginform").evaluateJavaScript("this.submit();");+
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+
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}+
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+
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void GoogleChat::initialPage(bool ok) {+
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    if (!QSslSocket::supportsSsl()) {+
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        showError("This example requires SSL support.");+
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        return;+
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    }+
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+
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    if (ok) {+
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        QWebElement email = document().findFirst("#Email");+
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        QWebElement passwd = document().findFirst("#Passwd");+
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        QWebElement loginForm = document().findFirst("#gaia_loginform");+
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        if (!email.isNull() && !passwd.isNull() && !loginForm.isNull()) {+
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            form.stackedWidget->setCurrentIndex(1);+
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            form.userNameEdit->setFocus();+
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            form.webView->disconnect();+
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            return;+
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        }+
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    }+
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+
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    showError("SERVICE unavailable.");+
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}+
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+
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void GoogleChat::hideElements()+
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{+
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    document().findFirst(".footer-footer").removeFromDocument();+
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    document().findFirst(".title-bar-bg .title-bar").removeFromDocument();+
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    QTimer::singleShot(2000, this, SLOT(hideElements()));+
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}+
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+
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void GoogleChat::loginPage(bool ok) {+
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    QString location = form.webView->url().toString();+
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    if (!ok) {+
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        if (location.indexOf("CheckCookie"))+
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            return;+
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        showError("Service unavailable");+
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    } else {+
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        // check for any error message+
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+
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        QWebElement  e = document().findFirst(".errormsg");+
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        if (e.isNull()) {+
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            form.stackedWidget->setCurrentIndex(2);+
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            QTimer::singleShot(500, this, SLOT(hideElements()));+
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            return;+
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        }+
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+
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       QString err = "Unknown login failure.";+
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       const QString errorMessage = e.toPlainText();+
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        if (!errorMessage.isEmpty()) {+
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            err = errorMessage;+
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            err = err.simplified();+
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        }+
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        showError(err);+
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    }+
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}+
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