Downloading website content

maniek1310

Hi,

I have a problem with downloading the website content. I just want to make the program downloaded from the content "<span class="file-icon1 archive"> text </ span>" and display it in the program.

When you compile the code pop up such errors:
@D:\qt\sprawdz_linki\mainwindow.cpp:-1: In member function 'void MainWindow::finished(bool)':

D:\qt\sprawdz_linki\mainwindow.cpp:30: błąd: conversion from 'QWebPage*' to non-scalar type 'QWebElement' requested
QWebElement elem = qwv->page();
^

D:\qt\sprawdz_linki\mainwindow.cpp:34: błąd: conversion from 'QWebElement' to non-scalar type 'QString' requested
QString test = elem;
^@

And here is the code of the program:
@#include "mainwindow.h"
#include "ui_mainwindow.h"

QWebView *qwv = new QWebView();

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::on_pushButton_clicked()
{
QWebView *qwv = new QWebView();
qwv->setUrl(QUrl("http://download.qt-project.org/official_releases/online_installers/qt-opensource-linux-x64-1.6.0-online.run"));

connect(qwv, SIGNAL(loadFinished(bool)), this, SLOT(finished(bool)));

}

void MainWindow::finished(bool)
{
QWebElement elem = qwv->page();

elem.findFirst("span[class=\"file_icon1 archive\"]");

QString test = elem;

ui->label->setText(test);

}
@

[andreyc EDIT: Suspicious link was changed]

sierdzio

The error messages are pretty clear: you are performing an invalid conversion.

Try this code instead:
@
QWebElement elem = qwv->page()->mainFrame()->findFirstElement("span class=\“file-icon1 archive\”");
QString test = elem.toPlainText();
@

Or something similar.

maniek1310

Images:
http://pics.tinypic.pl/i/00528/3xv7pbe9l8o7.png
Error :
@QWidget: Must construct a QApplication before a QWidget@

Code :
@#include "mainwindow.h"
#include "ui_mainwindow.h"

QWebView *qwv = new QWebView();

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);

}

MainWindow::~MainWindow()
{
delete ui;
}

void MainWindow::on_pushButton_clicked()
{
QWebView *qwv = new QWebView();
qwv->setUrl(QUrl("http://download.qt-project.org/official_releases/online_installers/qt-opensource-linux-x64-1.6.0-online.run"));

connect(qwv, SIGNAL(loadFinished(bool)), this, SLOT(finished(bool)));

}

void MainWindow::finished(bool)
{
//QWebElement elem = qwv->page();

//elem.findFirst("span[class=\"file_icon1 archive\"]");

//QString test = elem;

QWebElement elem = qwv->page()->mainFrame()->findFirstElement("span class=\"file-icon1 archive\"");
QString test = elem.toPlainText();

ui->label->setText(test);

}
@

@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QUrl>
#include <QtWebKitWidgets/QWebView>
#include <QtWebKit/QWebElement>
#include <QWebElementCollection>
#include <Qstring>
#include <QWebFrame>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();

private slots:
void on_pushButton_clicked();
void finished(bool);

private:
Ui::MainWindow *ui;
};

#endif // MAINWINDOW_H
@

[URL=http://www.tinypic.pl/3xv7pbe9l8o7][IMG]http://pics.tinypic.pl/i/00528/3xv7pbe9l8o7_t.jpg[/IMG][/URL]

maniek1310

Already fixed the error. The program starts correctly, but when you click on the button does not charge content <span class="file-icon1 archive">

maniek1310

Could someone help me