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** This file is part of the test suite of the Qt Toolkit.

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****************************************************************************/

#include <qtest.h>

#include <QtGui/QGraphicsWidget>

#include <QtGui/QGraphicsScene>

#include <QSignalSpy>

#include <QtDeclarative/qdeclarativeengine.h>

#include <QtDeclarative/qdeclarativecomponent.h>

#include <private/qdeclarativeloader_p.h>

#include "testhttpserver.h"

#include "../../../shared/util.h"

#define SERVER_PORT 14450

#ifdef Q_OS_SYMBIAN

// In Symbian OS test data is located in applications private dir

#define SRCDIR "."

#endif

inline QUrl TEST_FILE(const QString &filename)

{

    return QUrl::fromLocalFile(QLatin1String(SRCDIR) + QLatin1String("/data/") + filename);

}

#define TRY_WAIT(expr) \

    do { \

        for (int ii = 0; ii < 6; ++ii) { \

            if ((expr)) break; \

            QTest::qWait(50); \

        } \

        QVERIFY((expr)); \

    } while (false)

class tst_QDeclarativeLoader : public QObject

{

    Q_OBJECT

public:

    tst_QDeclarativeLoader();

private slots:

    void url();

    void invalidUrl();

    void component();

    void clear();

    void urlToComponent();

    void componentToUrl();

    void anchoredLoader();

    void sizeLoaderToItem();

    void sizeItemToLoader();

    void noResize();

    void sizeLoaderToGraphicsWidget();

    void sizeGraphicsWidgetToLoader();

    void noResizeGraphicsWidget();

    void networkRequestUrl();

    void failNetworkRequest();

//    void networkComponent();

    void deleteComponentCrash();

    void nonItem();

    void vmeErrors();

private:

    QDeclarativeEngine engine;

};

tst_QDeclarativeLoader::tst_QDeclarativeLoader()

{

}

void tst_QDeclarativeLoader::url()

{

    QDeclarativeComponent component(&engine);

    component.setData(QByteArray("import Qt 4.7\nLoader { property int did_load: 0; onLoaded: did_load=123; source: \"Rect120x60.qml\" }"), TEST_FILE(""));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QVERIFY(loader != 0);

    QVERIFY(loader->item());

    QVERIFY(loader->source() == QUrl::fromLocalFile(SRCDIR "/data/Rect120x60.qml"));

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(loader->status(), QDeclarativeLoader::Ready);

    QCOMPARE(loader->property("did_load").toInt(), 123);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    delete loader;

}

void tst_QDeclarativeLoader::component()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/SetSourceComponent.qml"));

    QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(component.create());

    QVERIFY(item);

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(item->QGraphicsObject::children().at(1)); 

    QVERIFY(loader);

    QVERIFY(loader->item());

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(loader->status(), QDeclarativeLoader::Ready);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    QDeclarativeComponent *c = qobject_cast<QDeclarativeComponent*>(item->QGraphicsObject::children().at(0));

    QVERIFY(c);

    QCOMPARE(loader->sourceComponent(), c);

    delete item;

}

void tst_QDeclarativeLoader::invalidUrl()

{

    QTest::ignoreMessage(QtWarningMsg, QString("<Unknown File>: File error for URL " + QUrl::fromLocalFile(SRCDIR "/data/IDontExist.qml").toString()).toUtf8().constData());

    QDeclarativeComponent component(&engine);

    component.setData(QByteArray("import Qt 4.7\nLoader { source: \"IDontExist.qml\" }"), TEST_FILE(""));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QVERIFY(loader != 0);

    QVERIFY(loader->item() == 0);

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(loader->status(), QDeclarativeLoader::Error);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 0);

    delete loader;

}

void tst_QDeclarativeLoader::clear()

{

    {

        QDeclarativeComponent component(&engine);

        component.setData(QByteArray(

                    "import Qt 4.7\n"

                    " Loader { id: loader\n"

                    "  source: 'Rect120x60.qml'\n"

                    "  Timer { interval: 200; running: true; onTriggered: loader.source = '' }\n"

                    " }")

                , TEST_FILE(""));

        QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

        QVERIFY(loader != 0);

        QVERIFY(loader->item());

        QCOMPARE(loader->progress(), 1.0);

        QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

        QTRY_VERIFY(loader->item() == 0);

        QCOMPARE(loader->progress(), 0.0);

        QCOMPARE(loader->status(), QDeclarativeLoader::Null);

        QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 0);

        delete loader;

    }

    {

        QDeclarativeComponent component(&engine, TEST_FILE("/SetSourceComponent.qml"));

        QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(component.create());

        QVERIFY(item);

        QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(item->QGraphicsObject::children().at(1)); 

        QVERIFY(loader);

        QVERIFY(loader->item());

        QCOMPARE(loader->progress(), 1.0);

        QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

        loader->setSourceComponent(0);

        QVERIFY(loader->item() == 0);

        QCOMPARE(loader->progress(), 0.0);

        QCOMPARE(loader->status(), QDeclarativeLoader::Null);

        QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 0);

        delete item;

    }

    {

        QDeclarativeComponent component(&engine, TEST_FILE("/SetSourceComponent.qml"));

        QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(component.create());

        QVERIFY(item);

        QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(item->QGraphicsObject::children().at(1)); 

        QVERIFY(loader);

        QVERIFY(loader->item());

        QCOMPARE(loader->progress(), 1.0);

        QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

        QMetaObject::invokeMethod(item, "clear");

        QVERIFY(loader->item() == 0);

        QCOMPARE(loader->progress(), 0.0);

        QCOMPARE(loader->status(), QDeclarativeLoader::Null);

        QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 0);

        delete item;

    }

}

void tst_QDeclarativeLoader::urlToComponent()

{

    QDeclarativeComponent component(&engine);

    component.setData(QByteArray("import Qt 4.7\n"

                "Loader {\n"

                " id: loader\n"

                " Component { id: myComp; Rectangle { width: 10; height: 10 } }\n"

                " source: \"Rect120x60.qml\"\n"

                " Timer { interval: 100; running: true; onTriggered: loader.sourceComponent = myComp }\n"

                "}" )

            , TEST_FILE(""));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QTest::qWait(200);

    QTRY_VERIFY(loader != 0);

    QVERIFY(loader->item());

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    QCOMPARE(loader->width(), 10.0);

    QCOMPARE(loader->height(), 10.0);

    delete loader;

}

void tst_QDeclarativeLoader::componentToUrl()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/SetSourceComponent.qml"));

    QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(component.create());

    QVERIFY(item);

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(item->QGraphicsObject::children().at(1)); 

    QVERIFY(loader);

    QVERIFY(loader->item());

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    loader->setSource(TEST_FILE("/Rect120x60.qml"));

    QVERIFY(loader->item());

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    QCOMPARE(loader->width(), 120.0);

    QCOMPARE(loader->height(), 60.0);

    delete item;

}

void tst_QDeclarativeLoader::anchoredLoader()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/AnchoredLoader.qml"));

    QDeclarativeItem *rootItem = qobject_cast<QDeclarativeItem*>(component.create());

    QVERIFY(rootItem != 0);

    QDeclarativeItem *loader = rootItem->findChild<QDeclarativeItem*>("loader");

    QDeclarativeItem *sourceElement = rootItem->findChild<QDeclarativeItem*>("sourceElement");

    QVERIFY(loader != 0);

    QVERIFY(sourceElement != 0);

    QCOMPARE(rootItem->width(), 300.0);

    QCOMPARE(rootItem->height(), 200.0);

    QCOMPARE(loader->width(), 300.0);

    QCOMPARE(loader->height(), 200.0);

    QCOMPARE(sourceElement->width(), 300.0);

    QCOMPARE(sourceElement->height(), 200.0);

}

void tst_QDeclarativeLoader::sizeLoaderToItem()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/SizeToItem.qml"));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QVERIFY(loader != 0);

    QCOMPARE(loader->width(), 120.0);

    QCOMPARE(loader->height(), 60.0);

    // Check resize

    QDeclarativeItem *rect = qobject_cast<QDeclarativeItem*>(loader->item());

    QVERIFY(rect);

    rect->setWidth(150);

    rect->setHeight(45);

    QCOMPARE(loader->width(), 150.0);

    QCOMPARE(loader->height(), 45.0);

    // Check explicit width

    loader->setWidth(200.0);

    QCOMPARE(loader->width(), 200.0);

    QCOMPARE(rect->width(), 200.0);

    rect->setWidth(100.0); // when rect changes ...

    QCOMPARE(rect->width(), 100.0); // ... it changes

    QCOMPARE(loader->width(), 200.0); // ... but loader stays the same

    // Check explicit height

    loader->setHeight(200.0);

    QCOMPARE(loader->height(), 200.0);

    QCOMPARE(rect->height(), 200.0);

    rect->setHeight(100.0); // when rect changes ...

    QCOMPARE(rect->height(), 100.0); // ... it changes

    QCOMPARE(loader->height(), 200.0); // ... but loader stays the same

    // Switch mode

    loader->setWidth(180);

    loader->setHeight(30);

    QCOMPARE(rect->width(), 180.0);

    QCOMPARE(rect->height(), 30.0);

    delete loader;

}

void tst_QDeclarativeLoader::sizeItemToLoader()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/SizeToLoader.qml"));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QVERIFY(loader != 0);

    QCOMPARE(loader->width(), 200.0);

    QCOMPARE(loader->height(), 80.0);

    QDeclarativeItem *rect = qobject_cast<QDeclarativeItem*>(loader->item());

    QVERIFY(rect);

    QCOMPARE(rect->width(), 200.0);

    QCOMPARE(rect->height(), 80.0);

    // Check resize

    loader->setWidth(180);

    loader->setHeight(30);

    QCOMPARE(rect->width(), 180.0);

    QCOMPARE(rect->height(), 30.0);

    // Switch mode

    loader->resetWidth(); // reset explicit size

    loader->resetHeight();

    rect->setWidth(160);

    rect->setHeight(45);

    QCOMPARE(loader->width(), 160.0);

    QCOMPARE(loader->height(), 45.0);

    delete loader;

}

void tst_QDeclarativeLoader::noResize()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/NoResize.qml"));

    QDeclarativeItem* item = qobject_cast<QDeclarativeItem*>(component.create());

    QVERIFY(item != 0);

    QCOMPARE(item->width(), 200.0);

    QCOMPARE(item->height(), 80.0);

    delete item;

}

void tst_QDeclarativeLoader::sizeLoaderToGraphicsWidget()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/SizeLoaderToGraphicsWidget.qml"));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QGraphicsScene scene;

    scene.addItem(loader);

    QVERIFY(loader != 0);

    QCOMPARE(loader->width(), 250.0);

    QCOMPARE(loader->height(), 250.0);

    // Check resize

    QGraphicsWidget *widget = qobject_cast<QGraphicsWidget*>(loader->item());

    QVERIFY(widget);

    widget->resize(QSizeF(150,45));

    QCOMPARE(loader->width(), 150.0);

    QCOMPARE(loader->height(), 45.0);

    // Switch mode

    loader->setWidth(180);

    loader->setHeight(30);

    QCOMPARE(widget->size().width(), 180.0);

    QCOMPARE(widget->size().height(), 30.0);

    delete loader;

}

void tst_QDeclarativeLoader::sizeGraphicsWidgetToLoader()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/SizeGraphicsWidgetToLoader.qml"));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QGraphicsScene scene;

    scene.addItem(loader);

    QVERIFY(loader != 0);

    QCOMPARE(loader->width(), 200.0);

    QCOMPARE(loader->height(), 80.0);

    QGraphicsWidget *widget = qobject_cast<QGraphicsWidget*>(loader->item());

    QVERIFY(widget);

    QCOMPARE(widget->size().width(), 200.0);

    QCOMPARE(widget->size().height(), 80.0);

    // Check resize

    loader->setWidth(180);

    loader->setHeight(30);

    QCOMPARE(widget->size().width(), 180.0);

    QCOMPARE(widget->size().height(), 30.0);

    // Switch mode

    loader->resetWidth(); // reset explicit size

    loader->resetHeight();

    widget->resize(QSizeF(160,45));

    QCOMPARE(loader->width(), 160.0);

    QCOMPARE(loader->height(), 45.0);

    delete loader;

}

void tst_QDeclarativeLoader::noResizeGraphicsWidget()

{

    QDeclarativeComponent component(&engine, TEST_FILE("/NoResizeGraphicsWidget.qml"));

    QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(component.create());

    QGraphicsScene scene;

    scene.addItem(item);

    QVERIFY(item != 0);

    QCOMPARE(item->width(), 200.0);

    QCOMPARE(item->height(), 80.0);

    delete item;

}

void tst_QDeclarativeLoader::networkRequestUrl()

{

    TestHTTPServer server(SERVER_PORT);

    QVERIFY(server.isValid());

    server.serveDirectory(SRCDIR "/data");

    QDeclarativeComponent component(&engine);

    component.setData(QByteArray("import Qt 4.7\nLoader { property int did_load : 0; source: \"http://127.0.0.1:14450/Rect120x60.qml\"; onLoaded: did_load=123 }"), QUrl::fromLocalFile(SRCDIR "/dummy.qml"));

    if (component.isError())

        qDebug() << component.errors();

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QVERIFY(loader != 0);

    TRY_WAIT(loader->status() == QDeclarativeLoader::Ready);

    QVERIFY(loader->item());

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(loader->property("did_load").toInt(), 123);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    delete loader;

}

/* XXX Component waits until all dependencies are loaded.  Is this actually possible?

void tst_QDeclarativeLoader::networkComponent()

{

    TestHTTPServer server(SERVER_PORT);

    QVERIFY(server.isValid());

    server.serveDirectory("slowdata", TestHTTPServer::Delay);

    QDeclarativeComponent component(&engine);

    component.setData(QByteArray(

                "import Qt 4.7\n"

                "import \"http://127.0.0.1:14450/\" as NW\n"

                "Item {\n"

                " Component { id: comp; NW.SlowRect {} }\n"

                " Loader { sourceComponent: comp } }")

            , TEST_FILE(""));

    QDeclarativeItem *item = qobject_cast<QDeclarativeItem*>(component.create());

    QVERIFY(item);

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(item->QGraphicsObject::children().at(1)); 

    QVERIFY(loader);

    TRY_WAIT(loader->status() == QDeclarativeLoader::Ready);

    QVERIFY(loader->item());

    QCOMPARE(loader->progress(), 1.0);

    QCOMPARE(loader->status(), QDeclarativeLoader::Ready);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 1);

    delete loader;

}

*/

void tst_QDeclarativeLoader::failNetworkRequest()

{

    TestHTTPServer server(SERVER_PORT);

    QVERIFY(server.isValid());

    server.serveDirectory(SRCDIR "/data");

    QTest::ignoreMessage(QtWarningMsg, "<Unknown File>: Network error for URL http://127.0.0.1:14450/IDontExist.qml");

    QDeclarativeComponent component(&engine);

    component.setData(QByteArray("import Qt 4.7\nLoader { property int did_load: 123; source: \"http://127.0.0.1:14450/IDontExist.qml\"; onLoaded: did_load=456 }"), QUrl::fromLocalFile("http://127.0.0.1:14450/dummy.qml"));

    QDeclarativeLoader *loader = qobject_cast<QDeclarativeLoader*>(component.create());

    QVERIFY(loader != 0);

    TRY_WAIT(loader->status() == QDeclarativeLoader::Error);

    QVERIFY(loader->item() == 0);

    QCOMPARE(loader->progress(), 0.0);

    QCOMPARE(loader->property("did_load").toInt(), 123);

    QCOMPARE(static_cast<QGraphicsItem*>(loader)->children().count(), 0);

    delete loader;

}