#ifndef WINDOW_H
#define WINDOW_H

#include <QMainWindow>
#include <QUrl>
#include <QWebElement>
#include <QNetworkReply>

QT_BEGIN_NAMESPACE
class QTreeWidgetItem;
QT_END_NAMESPACE

//! [Window class definition]
#include "ui_window.h"

class MyAccessManager : public QNetworkAccessManager
{
    Q_OBJECT

    virtual QNetworkReply *post(const QNetworkRequest &request, const QByteArray &data)
    {
        emit sendMyPost(data);
        return QNetworkAccessManager::post(request,data);
    }
    signals:
            void sendMyPost(QString string);
};

class Window : public QMainWindow, private Ui::Window
{
    Q_OBJECT

public:
    Window(QWidget *parent = 0);
    void setUrl(const QUrl &url);
    MyAccessManager *maneger;
    bool RecStatus;

public slots:
    void on_webView_loadFinished();
    void getMyPost(QString string);
    void showPage(QNetworkReply *replay);

private:
    void examineChildElements(const QWebElement &parentElement,
                              QTreeWidgetItem *parentItem);

private slots:
    void on_pushButton_Pause_clicked();
    void on_pushButton_Rec_clicked();
    void on_pushButton_clicked();
};
//! [Window class definition]

#endif

#include <QtGui>
#include <QtWebKit>

#include "window.h"

//! [Window constructor]
Window::Window(QWidget *parent)
    : QMainWindow(parent)
{
    setupUi(this);
    maneger = new MyAccessManager;
    connect(maneger,SIGNAL(sendMyPost(QString)), this,SLOT(getMyPost(QString)));
    connect(maneger, SIGNAL(finished(QNetworkReply*)), this, SLOT(showPage(QNetworkReply*)));
    webView->page()->settings()->setAttribute(QWebSettings::PluginsEnabled, true);
    webView->page()->setNetworkAccessManager(maneger);

    //webView->setHtml(data);
}
//! [Window constructor]

//! [set URL]
void Window::setUrl(const QUrl &url)
{   
    RecStatus = false;
    webView->setUrl(url);
}
//! [set URL]
   
//! [begin document inspection]
void Window::on_webView_loadFinished()
{
    treeWidget->clear();

    QWebFrame *frame = webView->page()->mainFrame();
    QWebElement document = frame->documentElement();

    examineChildElements(document, treeWidget->invisibleRootItem());
}
//! [begin document inspection]

//! [traverse document]
void Window::examineChildElements(const QWebElement &parentElement,
                                  QTreeWidgetItem *parentItem)
{
    QWebElement element = parentElement.firstChild();
    while (!element.isNull()) {

        QTreeWidgetItem *item = new QTreeWidgetItem();
        item->setText(0, element.tagName());
        parentItem->addChild(item);

        examineChildElements(element, item);

        element = element.nextSibling();
    }
}

void Window::getMyPost(QString string)
{
    textEdit->setText(string);
}

void Window::showPage(QNetworkReply *replay)
{
    if(RecStatus)
   {
      QString text;
      QUrl url = replay->request().url();
      text += ">> " + url.toString() + "\n";

      QList<QByteArray> rHeaders = replay->request().rawHeaderList();
      foreach (QByteArray reqName, rHeaders)
     {
            QByteArray reqValue = replay->request().rawHeader(reqName);
            text += reqName + ": " + reqValue + "\n";;
     }
     text += "\n\n";

     text += "<< \n";
     QList<QByteArray> reqHeaders = replay->rawHeaderList();
     foreach (QByteArray reqName, reqHeaders)
     {
            QByteArray reqValue = replay->rawHeader(reqName);
            text += reqName + ": " + reqValue + "\n";;
     }

      QByteArray bytes = replay->readAll();
      text += "##### "+QString("%1").arg(bytes.length())+ "\n\n";
   }
}

void Window::on_pushButton_clicked()
{
    webView->page()->setContentEditable(true);

    QWebElement email = webView->page()->mainFrame()->findFirstElement("input[name=login]");
    QWebElement pass = webView->page()->mainFrame()->findFirstElement("input[name=passwd]");

    email.setAttribute("value","mylogin");
    pass.setAttribute("value","mypass");

    QWebElement button = webView->page()->mainFrame()->findFirstElement("input[type=submit]");
    if (button.isNull()) QMessageBox::critical(this, "", "error");
    button.evaluateJavaScript("this.click();");
}

void Window::on_pushButton_Rec_clicked()
{
    RecStatus = true;
}

void Window::on_pushButton_Pause_clicked()
{
    RecStatus = false;
}