src/qmlworkerscript: Add ready property to WorkerScript

Previously it was impossible to determine whether a WorkerScript has
been fully initialized. This commit introduces a ready property that
allows outside Components to determine whether it is safe to send
signals.

Fixes: QTBUG-80413
Change-Id: I2a1892b5e759e317de791e71d79fbb0cbd320dd3
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 20 insertions, 0 deletions

diff --git a/tests/auto/qml/qquickworkerscript/tst_qquickworkerscript.cpp b/tests/auto/qml/qquickworkerscript/tst_qquickworkerscript.cpp
index bea9978f0b..1ace13a3fa 100644
--- a/tests/auto/qml/qquickworkerscript/tst_qquickworkerscript.cpp
+++ b/tests/auto/qml/qquickworkerscript/tst_qquickworkerscript.cpp
@@ -47,6 +47,7 @@ public:
     tst_QQuickWorkerScript() {}
 private slots:
     void source();
+    void ready();
     void messaging();
     void messaging_data();
     void messaging_sendQObjectList();
@@ -104,6 +105,25 @@ void tst_QQuickWorkerScript::source()
     qApp->processEvents();
 }
 
+void tst_QQuickWorkerScript::ready()
+{
+    QQmlComponent component(&m_engine, testFileUrl("worker.qml"));
+    QScopedPointer<QQuickWorkerScript>worker(qobject_cast<QQuickWorkerScript*>(component.create()));
+    QVERIFY(worker != nullptr);
+
+    const QMetaObject *mo = worker->metaObject();
+
+    // Give the component some time to become ready
+    QTest::qSleep(1000);
+
+    QVERIFY(worker->ready());
+
+    QVariant readyChangedCalled = mo->property(mo->indexOfProperty("readyChangedCalled")).read(worker.data()).value<QVariant>();
+
+    QVERIFY(!readyChangedCalled.isNull());
+    QVERIFY(readyChangedCalled.toBool());
+}
+
 void tst_QQuickWorkerScript::messaging()
 {
     QFETCH(QVariant, value);