C++ QScriptEngine::importExtension方法代码示例

void tst_QScriptExtensionPlugin::importStaticPlugin()
{
    Q_INIT_RESOURCE(staticplugin);
    QScriptEngine eng;
    QVERIFY(eng.availableExtensions().contains("static"));
    QVERIFY(eng.importExtension("static").isUndefined());
    QCOMPARE(eng.importedExtensions().size(), 1);
    QCOMPARE(eng.importedExtensions().at(0), QString::fromLatin1("static"));
    QVERIFY(eng.availableExtensions().contains("static"));
    QVERIFY(eng.globalObject().property("pluginKey").equals("static"));

    // Verify that :/qtscriptextension/static/__init__.js was evaluated.
    QVERIFY(eng.evaluate("spy").isObject());
    QVERIFY(eng.evaluate("spy.extension").equals("static"));
    QVERIFY(eng.evaluate("spy.setupPackage").isFunction());
    QVERIFY(eng.evaluate("spy.postInit").isUndefined());

    QVERIFY(eng.evaluate("postInitWasCalled").isBool());
    QVERIFY(eng.evaluate("postInitWasCalled").toBool());

    // Extensions can't be imported multiple times.
    eng.globalObject().setProperty("pluginKey", QScriptValue());
    QVERIFY(eng.importExtension("static").isUndefined());
    QCOMPARE(eng.importedExtensions().size(), 1);
    QVERIFY(!eng.globalObject().property("pluginKey").isValid());
}

            bool init() {
                if( m_script->action()->hadError() )
                    m_script->action()->clearError();

                delete m_engine;
                m_engine = new QScriptEngine();

                // load the Qross QScriptExtensionPlugin plugin that provides
                // us a bridge between Qross and QtScript. See here plugin.h
                m_engine->importExtension("qross");
                if( m_engine->hasUncaughtException() ) {
                    handleException();
                    delete m_engine;
                    m_engine = 0;
                    return false;
                }

                // the Qross QScriptExtensionPlugin exports the "Qross" property.
                QScriptValue global = m_engine->globalObject();
                m_qross = global.property("Qross");
                Q_ASSERT( m_qross.isQObject() );
                Q_ASSERT( ! m_engine->hasUncaughtException() );

                // Attach our Qross::Action instance to be able to access it in
                // scripts. Just like at the Kjs-backend we publish our own
                // action as "self".
                m_self = m_engine->newQObject( m_script->action() );
                global.setProperty("self", m_self, QScriptValue::ReadOnly|QScriptValue::Undeletable);

                { // publish the global objects.
                    QHash< QString, QObject* > objects = Manager::self().objects();
                    QHash< QString, QObject* >::Iterator it(objects.begin()), end(objects.end());
                    for(; it != end; ++it)
                        global.setProperty(it.key(), m_engine->newQObject( it.value() ) );
                }

                { // publish the local objects.
                    QHash< QString, QObject* > objects = m_script->action()->objects();
                    QHash< QString, QObject* >::Iterator it(objects.begin()), end(objects.end());
                    for(; it != end; ++it) {
                        copyEnumsToProperties( it.value() );
                        global.setProperty(it.key(), m_engine->newQObject( it.value() ) );
                    }
                }

                return ! m_engine->hasUncaughtException();
            }

int main(int argc, char **argv)
{
    QApplication *app = new QApplication(argc, argv);
    app->setApplicationName("kross");
    app->setApplicationVersion("0.1");
    app->setOrganizationDomain("dipe.org");

    QScriptEngine *engine = new QScriptEngine();
    engine->installTranslatorFunctions();

    /*K4AboutData about("kross",0,ki18n("Kross"),"0.1",
                     ki18n("KDE application to run Kross scripts."),
                     K4AboutData::License_LGPL,
                     ki18n("(C) 2006 Sebastian Sauer"),
                     ki18n("Run Kross scripts."),
                     "http://kross.dipe.org","[email protected]");*/
    //about.addAuthor(ki18n("Sebastian Sauer"), ki18n("Author"), "[email protected]");

    // Initialize command line args
    // Tell which options are supported and parse them.
    QCommandLineParser parser;
    parser.setApplicationDescription(QCoreApplication::translate("main", "KDE application to run Kross scripts."));
    parser.addHelpOption();
    parser.addOption(QCommandLineOption(QStringList() << "+file", QCoreApplication::translate("main", "Scriptfile")));
    parser.process(*app);

    const QStringList args = parser.positionalArguments();
    // If no options are defined.
    if (args.count() < 1) {
        parser.showHelp();
        //std::cout << "Syntax: " << "kross" << " scriptfile1 [scriptfile2] [scriptfile3] ..." << std::endl;
        return -1;
    }

    QScriptValue global = engine->globalObject();

    //qDebug()<<"QLibraryInfo::PluginsPath="<<QLibraryInfo::location(QLibraryInfo::PluginsPath);

    engine->importExtension("kross").toString();

    foreach (const QString &file, args) {
        runScriptFile(engine, file);
    }

int main(int argc, char **argv)
{
    QCoreApplication app( argc, argv );

    QStringList allowedBindings;
    allowedBindings << "qt.core" << "qt.gui" << "qt.sql" << "qt.xml" << "qt.uitools" << "qt.network" << "qt.webkit";
    QScriptEngine engine;
    foreach( QString binding, allowedBindings )
    {
        QScriptValue error = engine.importExtension( binding );
        if( error.isUndefined() )
        { // undefined indiciates success
            continue;
        }

        qDebug() << "Extension" << binding <<  "not found:" << error.toString();
        qDebug() << "Available extensions:" << engine.availableExtensions();
        return FAIL;
    }

void tst_QScriptExtensionPlugin::importSimplePlugin()
{
    QScriptEngine eng;
    QCoreApplication::addLibraryPath("plugins");

    QVERIFY(eng.importedExtensions().isEmpty());

    QStringList available = eng.availableExtensions();
    QVERIFY(available.contains("simple"));
    QVERIFY(available.contains("simple.foo"));
    QVERIFY(available.contains("simple.foo.bar"));

    QScriptValue extensionObject;
    {
        QVERIFY(eng.importExtension("simple").isUndefined());
        QCOMPARE(eng.importedExtensions().size(), 1);
        QCOMPARE(eng.importedExtensions().at(0), QString::fromLatin1("simple"));
        QVERIFY(eng.availableExtensions().contains("simple"));
        QVERIFY(eng.globalObject().property("pluginKey").equals("simple"));
        QVERIFY(eng.globalObject().property("package").isObject());
        extensionObject = eng.globalObject().property("simple");
        QVERIFY(extensionObject.isObject());
        QVERIFY(extensionObject.equals(eng.globalObject().property("package")));
    }

    {
        QVERIFY(eng.importExtension("simple.foo").isUndefined());
        QCOMPARE(eng.importedExtensions().size(), 2);
        QCOMPARE(eng.importedExtensions().at(1), QString::fromLatin1("simple.foo"));
        QVERIFY(eng.availableExtensions().contains("simple.foo"));
        QVERIFY(eng.globalObject().property("pluginKey").equals("simple.foo"));
        QVERIFY(eng.globalObject().property("package").isObject());
        QVERIFY(!extensionObject.equals(eng.globalObject().property("package")));
        QVERIFY(extensionObject.equals(eng.globalObject().property("simple")));
        QVERIFY(extensionObject.property("foo").isObject());
        QVERIFY(extensionObject.property("foo").equals(eng.globalObject().property("package")));
    }

    {
        QVERIFY(eng.importExtension("simple.foo.bar").isUndefined());
        QCOMPARE(eng.importedExtensions().size(), 3);
        QCOMPARE(eng.importedExtensions().at(2), QString::fromLatin1("simple.foo.bar"));
        QVERIFY(eng.availableExtensions().contains("simple.foo.bar"));
        QVERIFY(eng.globalObject().property("pluginKey").equals("simple.foo.bar"));
        QVERIFY(eng.globalObject().property("package").isObject());
        QVERIFY(!extensionObject.equals(eng.globalObject().property("package")));
        QVERIFY(extensionObject.equals(eng.globalObject().property("simple")));
        QVERIFY(extensionObject.property("foo").property("bar").isObject());
        QVERIFY(extensionObject.property("foo").property("bar").equals(eng.globalObject().property("package")));
    }

    // Extensions can't be imported multiple times.
    eng.globalObject().setProperty("pluginKey", QScriptValue());
    QVERIFY(eng.importExtension("simple").isUndefined());
    QCOMPARE(eng.importedExtensions().size(), 3);
    QVERIFY(!eng.globalObject().property("pluginKey").isValid());

    QVERIFY(eng.importExtension("simple.foo").isUndefined());
    QCOMPARE(eng.importedExtensions().size(), 3);
    QVERIFY(!eng.globalObject().property("pluginKey").isValid());

    QVERIFY(eng.importExtension("simple.foo.bar").isUndefined());
    QCOMPARE(eng.importedExtensions().size(), 3);
    QVERIFY(!eng.globalObject().property("pluginKey").isValid());
}