main.cpp Example File

minibrowser/main.cpp
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**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the examples of the Qt Toolkit.
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#include <QtCore/QUrl>
#include <QtCore/QCommandLineOption>
#include <QtCore/QCommandLineParser>
#include <QGuiApplication>
#include <QStyleHints>
#include <QScreen>
#include <QQmlApplicationEngine>
#include <QtQml/QQmlContext>
#include <QtWebView/QtWebView>

// Workaround: As of Qt 5.4 QtQuick does not expose QUrl::fromUserInput.
class Utils : public QObject {
    Q_OBJECT
public:
    Utils(QObject* parent = 0) : QObject(parent) { }
    Q_INVOKABLE static QUrl fromUserInput(const QString& userInput);
};

QUrl Utils::fromUserInput(const QString& userInput)
{
    if (userInput.isEmpty())
        return QUrl::fromUserInput("about:blank");
    const QUrl result = QUrl::fromUserInput(userInput);
    return result.isValid() ? result : QUrl::fromUserInput("about:blank");
}

#include "main.moc"

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);
    QtWebView::initialize();
    QGuiApplication::setApplicationDisplayName(QCoreApplication::translate("main",
                                                                           "QtWebView Example"));
    QCommandLineParser parser;
    QCoreApplication::setApplicationVersion(QT_VERSION_STR);
    parser.setApplicationDescription(QGuiApplication::applicationDisplayName());
    parser.addHelpOption();
    parser.addVersionOption();
    parser.addPositionalArgument("url", "The initial URL to open.");
    QStringList arguments = app.arguments();
#ifdef Q_OS_WINRT
    arguments.removeAt(1); // The launcher always passes in the -ServerName parameter, breaking the command line parser
#endif
    parser.process(arguments);
    const QString initialUrl = parser.positionalArguments().isEmpty() ?
        QStringLiteral("qt.io") : parser.positionalArguments().first();

    QQmlApplicationEngine engine;
    QQmlContext *context = engine.rootContext();
    context->setContextProperty(QStringLiteral("utils"), new Utils(&engine));
    context->setContextProperty(QStringLiteral("initialUrl"),
                                Utils::fromUserInput(initialUrl));
    QRect geometry = QGuiApplication::primaryScreen()->availableGeometry();
    if (!QGuiApplication::styleHints()->showIsFullScreen()) {
        const QSize size = geometry.size() * 4 / 5;
        const QSize offset = (geometry.size() - size) / 2;
        const QPoint pos = geometry.topLeft() + QPoint(offset.width(), offset.height());
        geometry = QRect(pos, size);
    }
    context->setContextProperty(QStringLiteral("initialX"), geometry.x());
    context->setContextProperty(QStringLiteral("initialY"), geometry.y());
    context->setContextProperty(QStringLiteral("initialWidth"), geometry.width());
    context->setContextProperty(QStringLiteral("initialHeight"), geometry.height());

    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.