A sample tiny browser based on Qt 5 + Webkit

browser.h

/* Simple Browser Sample
 * Put this file (browser.h) and browser.cpp, browser.pro in one folder.
 * Use Qt Creator with Qt 5 to compile the project.
 *
 * Content of browser.cpp
 *
#include "browser.h"

int main(int argc, char** argv) {
    QApplication app(argc, argv);
    MainWindow window;
    window.loadUrl(QUrl("http://lib.ustc.edu.cn/"));
    window.showFullScreen();

    return app.exec();
}

 * Content of browser.pro
 *
QT += widgets webkitwidgets
SOURCES = browser.cpp

HEADERS += \
    browser.h

*/

#ifndef BROWSER_H
#define BROWSER_H

#include <QtGui>
#include <QtWebKitWidgets>
#include <QBoxLayout>
#include <QPushButton>

class MainWindow : public QMainWindow {
    Q_OBJECT

public:
    MainWindow(void) {
        content = new QWebView;
        toolbar = new QToolBar;
        location = new QLineEdit;
        homeButton = new QPushButton(QString("Home"));
        topBarLayout = new QBoxLayout(QBoxLayout::LeftToRight);
        layout = new QBoxLayout(QBoxLayout::TopToBottom);
        window = new QWidget;
        progressBar = new QProgressBar;

        content->setHtml(QString("<h1>Loading...</h1>"));

        toolbar->addAction(content->pageAction(QWebPage::Back));
        toolbar->addAction(content->pageAction(QWebPage::Forward));
        toolbar->addAction(content->pageAction(QWebPage::Reload));
        toolbar->addAction(content->pageAction(QWebPage::Stop));

        topBarLayout->addWidget(toolbar);
        topBarLayout->addWidget(location);
        topBarLayout->addWidget(homeButton);
        layout->addLayout(topBarLayout);
        layout->addWidget(content);
        layout->addWidget(progressBar);
        window->setLayout(layout);

        setCentralWidget(window);

        progressBar->setMinimum(0);
        progressBar->setMaximum(100);

        QObject::connect(content, SIGNAL(loadFinished(bool)), this, SLOT(onLoadFinish()));
        QObject::connect(content, SIGNAL(loadFinished(bool)), progressBar, SLOT(reset()));
        QObject::connect(content, SIGNAL(loadProgress(int)), this, SLOT(onLoadProgress()));
        QObject::connect(content, SIGNAL(loadProgress(int)), progressBar, SLOT(setValue(int)));
        QObject::connect(location, SIGNAL(returnPressed()), this, SLOT(gotoUrl()));
        QObject::connect(homeButton, SIGNAL(clicked()), this, SLOT(goHome()));
    }

    void loadUrl(const QUrl url) {
        homeUrl = url;
        content->load(url);
        content->setFocus();
    }

protected slots:
    void gotoUrl() {
        QUrl url = QUrl::fromUserInput(location->text());
        content->load(url);
        content->setFocus();
    }

    void goHome() {
        content->load(homeUrl);
        content->setFocus();
    }

    void onLoadFinish() {
        setWindowTitle(QString("%1").arg(content->title()));
    }

    void onLoadProgress() {
        location->setText(content->url().toString());
    }

private:
    QWebView *content;
    QLineEdit *location;
    QPushButton *homeButton;
    QBoxLayout *layout;
    QToolBar *toolbar;
    QBoxLayout *topBarLayout;
    QProgressBar *progressBar;
    QWidget *window;
    QUrl homeUrl;
};

#endif // BROWSER_H