Merge master into api_changes

Conflicts:
	src/qml/qml/qqmlboundsignal.cpp
	src/qml/qml/qqmlpropertycache.cpp

Change-Id: I5193a193fa301c0b518291645bf626a5fa07118f

16 files changed, 405 insertions, 3 deletions

diff --git a/tests/auto/qml/qqmlecmascript/data/assignDate.2.qml b/tests/auto/qml/qqmlecmascript/data/assignDate.2.qml
new file mode 100644
index 0000000000..578701844c
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/assignDate.2.qml
@@ -0,0 +1,6 @@
+import Qt.test 1.0
+
+MyTypeObject {
+    dateProperty: if(1) new Date("1982-11-25")
+    dateTimeProperty: if(1) new Date("2009-05-12T13:22:01")
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/assignDate.3.qml b/tests/auto/qml/qqmlecmascript/data/assignDate.3.qml
new file mode 100644
index 0000000000..32b88d0183
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/assignDate.3.qml
@@ -0,0 +1,6 @@
+import Qt.test 1.0
+
+MyTypeObject {
+    dateProperty: if(1) "1982-11-25Z"
+    dateTimeProperty: if(1) "2009-05-12T13:22:01Z"
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/assignDate.4.qml b/tests/auto/qml/qqmlecmascript/data/assignDate.4.qml
new file mode 100644
index 0000000000..16213c691f
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/assignDate.4.qml
@@ -0,0 +1,6 @@
+import Qt.test 1.0
+
+MyTypeObject {
+    dateProperty: if(1) new Date("1982-11-25Z")
+    dateTimeProperty: if(1) new Date("2009-05-12T13:22:01Z")
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/assignDate.5.qml b/tests/auto/qml/qqmlecmascript/data/assignDate.5.qml
new file mode 100644
index 0000000000..ff1d85fbef
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/assignDate.5.qml
@@ -0,0 +1,6 @@
+import Qt.test 1.0
+
+MyTypeObject {
+    dateProperty: if(1) "1982-11-25Z"
+    dateTimeProperty: if(1) "2009-05-12T15:22:01+02:00"
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/assignDate.6.qml b/tests/auto/qml/qqmlecmascript/data/assignDate.6.qml
new file mode 100644
index 0000000000..859c02f79c
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/assignDate.6.qml
@@ -0,0 +1,6 @@
+import Qt.test 1.0
+
+MyTypeObject {
+    dateProperty: if(1) new Date("1982-11-25")
+    dateTimeProperty: if(1) new Date("2009-05-12T15:22:01+02:00")
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/assignDate.qml b/tests/auto/qml/qqmlecmascript/data/assignDate.qml
new file mode 100644
index 0000000000..07a638d50f
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/assignDate.qml
@@ -0,0 +1,9 @@
+import Qt.test 1.0
+import QtQuick 2.0
+
+MyTypeObject {
+    Component.onCompleted: {
+        dateProperty = new Date("1982-11-25")
+        dateTimeProperty = new Date("2009-05-12T13:22:01")
+    }
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/componentCreation.qml b/tests/auto/qml/qqmlecmascript/data/componentCreation.qml
new file mode 100644
index 0000000000..d21301ea13
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/componentCreation.qml
@@ -0,0 +1,52 @@
+import Qt.test 1.0
+import QtQuick 2.0
+
+MyTypeObject{
+    id: obj
+    objectName: "obj"
+
+    function url()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml');
+    }
+
+    function urlMode()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', Component.PreferSynchronous);
+    }
+
+    function urlParent()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', obj);
+    }
+
+    function urlNullParent()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', null);
+    }
+
+    function urlModeParent()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', Component.PreferSynchronous, obj);
+    }
+
+    function urlModeNullParent()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', Component.PreferSynchronous, null);
+    }
+
+    function invalidSecondArg()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', 'Bad argument');
+    }
+
+    function invalidThirdArg()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', Component.PreferSynchronous, 'Bad argument');
+    }
+
+    function invalidMode()
+    {
+        obj.componentProperty = Qt.createComponent('dynamicCreation.helper.qml', -666);
+    }
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/enums.3.qml b/tests/auto/qml/qqmlecmascript/data/enums.3.qml
new file mode 100644
index 0000000000..c77d635a1e
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/enums.3.qml
@@ -0,0 +1,41 @@
+import QtQuick 2.0
+import Qt.test 1.0
+import Qt.test 1.0 as Namespace
+
+Item {
+    // Enums from type
+    property int a: Item.Center
+    property int b: Item.Right
+
+    // Enums from Qt
+    property int c: Qt.blue
+    property int d: Qt.darkRed
+
+    // Enums from other type
+    property int e: MyQmlObject.EnumValue3
+    property int f: MyQmlObject.EnumValue4
+
+    // Enums from namespaced other type
+    property int h: Namespace.MyQmlObject.EnumValue3
+    property int i: Namespace.MyQmlObject.EnumValue4
+
+    // Count the onChanged signals to see whether
+    // they're assigned as literals or via bindings
+    property int ac: 0
+    property int bc: 0
+    property int cc: 0
+    property int dc: 0
+    property int ec: 0
+    property int fc: 0
+    property int hc: 0
+    property int ic: 0
+
+    onAChanged: ac++
+    onBChanged: bc++
+    onCChanged: cc++
+    onDChanged: dc++
+    onEChanged: ec++
+    onFChanged: fc++
+    onHChanged: hc++
+    onIChanged: ic++
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/jsimport/testJsImport.qml b/tests/auto/qml/qqmlecmascript/data/jsimport/testJsImport.qml
new file mode 100644
index 0000000000..ae43e90210
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/jsimport/testJsImport.qml
@@ -0,0 +1,13 @@
+import QtQuick 2.0
+
+import com.nokia.JsModule 1.0
+import com.nokia.JsModule 1.0 as RenamedModule
+import "testJsModuleImport.js" as TestJsModuleImport
+
+QtObject {
+    id: testQtObject
+
+    property string importedScriptStringValue: ScriptAPI.greeting();
+    property string renamedScriptStringValue: RenamedModule.ScriptAPI.greeting();
+    property string reimportedScriptStringValue: TestJsModuleImport.importedValue();
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/jsimport/testJsModuleImport.js b/tests/auto/qml/qqmlecmascript/data/jsimport/testJsModuleImport.js
new file mode 100644
index 0000000000..2d21953d2c
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/jsimport/testJsModuleImport.js
@@ -0,0 +1,5 @@
+.import com.nokia.JsModule 1.0 as JsModule
+
+function importedValue() {
+    return JsModule.ScriptAPI.greeting();
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/lib/com/nokia/JsModule/ScriptAPI.js b/tests/auto/qml/qqmlecmascript/data/lib/com/nokia/JsModule/ScriptAPI.js
new file mode 100644
index 0000000000..b90033eeb4
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/lib/com/nokia/JsModule/ScriptAPI.js
@@ -0,0 +1,5 @@
+var major = 1
+var minor = 0
+
+function greeting() { return "Hello" }
+
diff --git a/tests/auto/qml/qqmlecmascript/data/lib/com/nokia/JsModule/qmldir b/tests/auto/qml/qqmlecmascript/data/lib/com/nokia/JsModule/qmldir
new file mode 100644
index 0000000000..c33d1e7a0d
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/lib/com/nokia/JsModule/qmldir
@@ -0,0 +1 @@
+ScriptAPI 1.0 ScriptAPI.js
diff --git a/tests/auto/qml/qqmlecmascript/data/ownershipConsistency.qml b/tests/auto/qml/qqmlecmascript/data/ownershipConsistency.qml
new file mode 100644
index 0000000000..7ae099e32e
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/ownershipConsistency.qml
@@ -0,0 +1,21 @@
+import QtQuick 2.0
+
+Item {
+    Loader {
+        source: "PropertyVarBaseItem.qml"
+        onLoaded: item.destroy()
+    }
+    Loader {
+        Component.onCompleted: setSource("PropertyVarBaseItem.qml", { random: "" })
+        onLoaded: item.destroy()
+    }
+
+    Repeater {
+        model: 1
+        Item { Component.onCompleted: destroy() }
+    }
+    Repeater {
+        model: 1
+        Item { id: me; Component.onCompleted: { setObject(me); getObject().destroy() } }
+    }
+}
diff --git a/tests/auto/qml/qqmlecmascript/data/ownershipRootObject.qml b/tests/auto/qml/qqmlecmascript/data/ownershipRootObject.qml
new file mode 100644
index 0000000000..b1b0b72a87
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/ownershipRootObject.qml
@@ -0,0 +1,6 @@
+import QtQuick 2.0
+
+QtObject {
+    id: root
+    Component.onCompleted: { setObject(root); getObject() }
+}
diff --git a/tests/auto/qml/qqmlecmascript/testtypes.cpp b/tests/auto/qml/qqmlecmascript/testtypes.cpp
index 64e91fbc95..a79207a1c8 100644
--- a/tests/auto/qml/qqmlecmascript/testtypes.cpp
+++ b/tests/auto/qml/qqmlecmascript/testtypes.cpp
@@ -196,7 +196,7 @@ void registerTypes()
     qmlRegisterModuleApi("Qt.test.qobjectApi",2,0,qobject_api); // register (qobject) module API for a uri which doesn't contain elements, major version set
     qmlRegisterModuleApi("Qt.test.qobjectApiParented",1,0,qobject_api_engine_parent); // register (parented qobject) module API for a uri which doesn't contain elements
 
-    qRegisterMetaType<MyQmlObject::MyType>("MyEnum2");
+    qRegisterMetaType<MyQmlObject::MyEnum2>("MyEnum2");
     qRegisterMetaType<Qt::MouseButtons>("Qt::MouseButtons");
 
     qmlRegisterType<CircularReferenceObject>("Qt.test", 1, 0, "CircularReferenceObject");
diff --git a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
index 861ff2e641..d932bc6d09 100644
--- a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
+++ b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
@@ -71,6 +71,8 @@ public:
 private slots:
     void initTestCase();
     void assignBasicTypes();
+    void assignDate_data();
+    void assignDate();
     void idShortcutInvalidates();
     void boolPropertiesEvaluateAsBool();
     void methods();
@@ -97,6 +99,8 @@ private slots:
     void importScope();
     void signalParameterTypes();
     void objectsCompareAsEqual();
+    void componentCreation_data();
+    void componentCreation();
     void dynamicCreation_data();
     void dynamicCreation();
     void dynamicDestruction();
@@ -129,6 +133,8 @@ private slots:
     void ownership();
     void cppOwnershipReturnValue();
     void ownershipCustomReturnValue();
+    void ownershipRootObject();
+    void ownershipConsistency();
     void qlistqobjectMethods();
     void strictlyEquals();
     void compiled();
@@ -255,6 +261,9 @@ void tst_qqmlecmascript::initTestCase()
 {
     QQmlDataTest::initTestCase();
     registerTypes();
+
+    QString dataDir(dataDirectory() + QLatin1Char('/') + QLatin1String("lib"));
+    engine.addImportPath(dataDir);
 }
 
 void tst_qqmlecmascript::assignBasicTypes()
@@ -274,7 +283,7 @@ void tst_qqmlecmascript::assignBasicTypes()
     QCOMPARE(object->colorProperty(), QColor("red"));
     QCOMPARE(object->dateProperty(), QDate(1982, 11, 25));
     QCOMPARE(object->timeProperty(), QTime(11, 11, 32));
-    QCOMPARE(object->dateTimeProperty(), QDateTime(QDate(2009, 5, 12), QTime(13, 22, 1)));
+    QCOMPARE(object->dateTimeProperty(), QDateTime(QDate(2009, 5, 12), QTime(13, 22, 1), Qt::UTC));
     QCOMPARE(object->pointProperty(), QPoint(99,13));
     QCOMPARE(object->pointFProperty(), QPointF(-10.1, 12.3));
     QCOMPARE(object->sizeProperty(), QSize(99, 13));
@@ -302,7 +311,7 @@ void tst_qqmlecmascript::assignBasicTypes()
     QCOMPARE(object->colorProperty(), QColor("red"));
     QCOMPARE(object->dateProperty(), QDate(1982, 11, 25));
     QCOMPARE(object->timeProperty(), QTime(11, 11, 32));
-    QCOMPARE(object->dateTimeProperty(), QDateTime(QDate(2009, 5, 12), QTime(13, 22, 1)));
+    QCOMPARE(object->dateTimeProperty(), QDateTime(QDate(2009, 5, 12), QTime(13, 22, 1), Qt::UTC));
     QCOMPARE(object->pointProperty(), QPoint(99,13));
     QCOMPARE(object->pointFProperty(), QPointF(-10.1, 12.3));
     QCOMPARE(object->sizeProperty(), QSize(99, 13));
@@ -317,6 +326,28 @@ void tst_qqmlecmascript::assignBasicTypes()
     }
 }
 
+void tst_qqmlecmascript::assignDate_data()
+{
+    QTest::addColumn<QUrl>("source");
+    QTest::newRow("Component.onComplete JS") << testFileUrl("assignDate.qml");
+    QTest::newRow("Binding JS") << testFileUrl("assignDate.2.qml");
+    QTest::newRow("Binding UTC") << testFileUrl("assignDate.3.qml");
+    QTest::newRow("Binding JS UTC") << testFileUrl("assignDate.4.qml");
+    QTest::newRow("Binding UTC+2") << testFileUrl("assignDate.5.qml");
+    QTest::newRow("Binding JS UTC+2 ") << testFileUrl("assignDate.6.qml");
+}
+
+void tst_qqmlecmascript::assignDate()
+{
+    QFETCH(QUrl, source);
+    QQmlComponent component(&engine, source);
+    QScopedPointer<QObject> obj(component.create());
+    MyTypeObject *object = qobject_cast<MyTypeObject *>(obj.data());
+    QVERIFY(object != 0);
+    QCOMPARE(object->dateProperty(), QDate(1982, 11, 25));
+    QCOMPARE(object->dateTimeProperty(), QDateTime(QDate(2009, 5, 12), QTime(13, 22, 1), Qt::UTC));
+}
+
 void tst_qqmlecmascript::idShortcutInvalidates()
 {
     {
@@ -820,6 +851,34 @@ void tst_qqmlecmascript::enums()
 
     delete object;
     }
+    // Enums as literals
+    {
+    QQmlComponent component(&engine, testFileUrl("enums.3.qml"));
+    QObject *object = component.create();
+    QVERIFY(object != 0);
+
+    // check the values are what we expect
+    QCOMPARE(object->property("a").toInt(), 4);
+    QCOMPARE(object->property("b").toInt(), 5);
+    QCOMPARE(object->property("c").toInt(), 9);
+    QCOMPARE(object->property("d").toInt(), 13);
+    QCOMPARE(object->property("e").toInt(), 2);
+    QCOMPARE(object->property("f").toInt(), 3);
+    QCOMPARE(object->property("h").toInt(), 2);
+    QCOMPARE(object->property("i").toInt(), 3);
+
+    // count of change signals
+    QCOMPARE(object->property("ac").toInt(), 0);
+    QCOMPARE(object->property("bc").toInt(), 0);
+    QCOMPARE(object->property("cc").toInt(), 0);
+    QCOMPARE(object->property("dc").toInt(), 0);
+    QCOMPARE(object->property("ec").toInt(), 0);
+    QCOMPARE(object->property("fc").toInt(), 0);
+    QCOMPARE(object->property("hc").toInt(), 1); // namespace -> binding
+    QCOMPARE(object->property("ic").toInt(), 1); // namespace -> binding
+
+    delete object;
+    }
 }
 
 void tst_qqmlecmascript::valueTypeFunctions()
@@ -1199,6 +1258,89 @@ void tst_qqmlecmascript::aliasPropertyReset()
     delete object;
 }
 
+void tst_qqmlecmascript::componentCreation_data()
+{
+    QTest::addColumn<QString>("method");
+    QTest::addColumn<QString>("creationError");
+    QTest::addColumn<QString>("createdParent");
+
+    QTest::newRow("url")
+        << "url"
+        << ""
+        << "";
+    QTest::newRow("urlMode")
+        << "urlMode"
+        << ""
+        << "";
+    QTest::newRow("urlParent")
+        << "urlParent"
+        << ""
+        << "obj";
+    QTest::newRow("urlNullParent")
+        << "urlNullParent"
+        << ""
+        << "null";
+    QTest::newRow("urlModeParent")
+        << "urlModeParent"
+        << ""
+        << "obj";
+    QTest::newRow("urlModeNullParent")
+        << "urlModeNullParent"
+        << ""
+        << "null";
+    QTest::newRow("invalidSecondArg")
+        << "invalidSecondArg"
+        << ":40: Error: Qt.createComponent(): Invalid arguments"
+        << "";
+    QTest::newRow("invalidThirdArg")
+        << "invalidThirdArg"
+        << ":45: Error: Qt.createComponent(): Invalid parent object"
+        << "";
+    QTest::newRow("invalidMode")
+        << "invalidMode"
+        << ":50: Error: Qt.createComponent(): Invalid arguments"
+        << "";
+}
+
+/*
+Test using createComponent to dynamically generate a component.
+*/
+void tst_qqmlecmascript::componentCreation()
+{
+    QFETCH(QString, method);
+    QFETCH(QString, creationError);
+    QFETCH(QString, createdParent);
+
+    QUrl testUrl(testFileUrl("componentCreation.qml"));
+
+    if (!creationError.isEmpty()) {
+        QString warning = testUrl.toString() + creationError;
+        QTest::ignoreMessage(QtWarningMsg, warning.toLatin1().constData());
+    }
+
+    QQmlComponent component(&engine, testUrl);
+    MyTypeObject *object = qobject_cast<MyTypeObject*>(component.create());
+    QVERIFY(object != 0);
+
+    QMetaObject::invokeMethod(object, method.toUtf8());
+    QQmlComponent *created = object->componentProperty();
+
+    if (creationError.isEmpty()) {
+        QVERIFY(created);
+
+        QObject *expectedParent;
+        if (createdParent.isEmpty()) {
+            // For now, the parent should be the engine; this will change for QTBUG-24841
+            expectedParent = &engine;
+        } else if (createdParent == QLatin1String("obj")) {
+            expectedParent = object;
+        } else if (createdParent == QLatin1String("null")) {
+            expectedParent = 0;
+        }
+        QCOMPARE(created->parent(), expectedParent);
+    }
+}
+
 void tst_qqmlecmascript::dynamicCreation_data()
 {
     QTest::addColumn<QString>("method");
@@ -2800,6 +2942,72 @@ void tst_qqmlecmascript::ownershipCustomReturnValue()
     QVERIFY(source.value == 0);
 }
 
+//the return value from getObject will be JS ownership,
+//unless strong Cpp ownership has been set
+class OwnershipChangingObject : public QObject
+{
+    Q_OBJECT
+public:
+    OwnershipChangingObject(): object(0) { }
+
+    QPointer<QObject> object;
+
+public slots:
+    QObject *getObject() { return object; }
+    void setObject(QObject *obj) { object = obj; }
+};
+
+void tst_qqmlecmascript::ownershipRootObject()
+{
+    OwnershipChangingObject own;
+    QQmlContext *context = new QQmlContext(engine.rootContext());
+    context->setContextObject(&own);
+
+    QQmlComponent component(&engine, testFileUrl("ownershipRootObject.qml"));
+    QQmlGuard<QObject> object = component.create(context);
+    QVERIFY(object);
+
+    engine.collectGarbage();
+
+    QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
+    QCoreApplication::processEvents();
+
+    QVERIFY(own.object != 0);
+
+    delete context;
+    delete object;
+}
+
+void tst_qqmlecmascript::ownershipConsistency()
+{
+    OwnershipChangingObject own;
+    QQmlContext *context = new QQmlContext(engine.rootContext());
+    context->setContextObject(&own);
+
+    QString expectedWarning = testFileUrl("ownershipConsistency.qml").toString() + QLatin1String(":19: Error: Invalid attempt to destroy() an indestructible object");
+    QTest::ignoreMessage(QtWarningMsg, qPrintable(expectedWarning)); // we expect a meaningful warning to be printed.
+    expectedWarning = testFileUrl("ownershipConsistency.qml").toString() + QLatin1String(":15: Error: Invalid attempt to destroy() an indestructible object");
+    QTest::ignoreMessage(QtWarningMsg, qPrintable(expectedWarning)); // we expect a meaningful warning to be printed.
+    expectedWarning = testFileUrl("ownershipConsistency.qml").toString() + QLatin1String(":6: Error: Invalid attempt to destroy() an indestructible object");
+    QTest::ignoreMessage(QtWarningMsg, qPrintable(expectedWarning)); // we expect a meaningful warning to be printed.
+    expectedWarning = testFileUrl("ownershipConsistency.qml").toString() + QLatin1String(":10: Error: Invalid attempt to destroy() an indestructible object");
+    QTest::ignoreMessage(QtWarningMsg, qPrintable(expectedWarning)); // we expect a meaningful warning to be printed.
+
+    QQmlComponent component(&engine, testFileUrl("ownershipConsistency.qml"));
+    QQmlGuard<QObject> object = component.create(context);
+    QVERIFY(object);
+
+    engine.collectGarbage();
+
+    QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
+    QCoreApplication::processEvents();
+
+    QVERIFY(own.object != 0);
+
+    delete context;
+    delete object;
+}
+
 class QListQObjectMethodsObject : public QObject
 {
     Q_OBJECT
@@ -3299,6 +3507,17 @@ void tst_qqmlecmascript::importScripts_data()
             << QStringList()
             << (QStringList() << QLatin1String("testValue"))
             << (QVariantList() << QVariant(20));
+
+    QTest::newRow("import module which exports a script")
+            << testFileUrl("jsimport/testJsImport.qml")
+            << QString()
+            << QStringList()
+            << (QStringList() << QLatin1String("importedScriptStringValue")
+                              << QLatin1String("renamedScriptStringValue")
+                              << QLatin1String("reimportedScriptStringValue"))
+            << (QVariantList() << QVariant(QString("Hello"))
+                               << QVariant(QString("Hello"))
+                               << QVariant(QString("Hello")));
 }
 
 void tst_qqmlecmascript::importScripts()