Do not resolve URLs when assigning them to a property

We don't know in advance if a URL is part of the source code and should
be relative to the current element, or if it is part of the application
data and should not be touched.

[ChangeLog][QtQml][Important Behavior Changes] URLs are not resolved or
intercepted anymore when assigning them to a "url" property. Instead
they are resolved and possibly intercepted when used to access an actual
resource.

Fixes: QTBUG-76879
Change-Id: Iaa2385aff2c13aa71a12e57385d9afb5dc60a073
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 14 insertions, 7 deletions

diff --git a/src/quick/items/qquickloader.cpp b/src/quick/items/qquickloader.cpp
index 40e0c3219a..0d47931063 100644
--- a/src/quick/items/qquickloader.cpp
+++ b/src/quick/items/qquickloader.cpp
@@ -439,9 +439,8 @@ void QQuickLoader::loadFromSource()
     }
 
     if (isComponentComplete()) {
-        QQmlComponent::CompilationMode mode = d->asynchronous ? QQmlComponent::Asynchronous : QQmlComponent::PreferSynchronous;
         if (!d->component)
-            d->component.setObject(new QQmlComponent(qmlEngine(this), d->source, mode, this), this);
+            d->createComponent();
         d->load();
     }
 }
@@ -796,11 +795,8 @@ void QQuickLoader::componentComplete()
     Q_D(QQuickLoader);
     QQuickItem::componentComplete();
     if (active()) {
-        if (d->loadingFromSource) {
-            QQmlComponent::CompilationMode mode = d->asynchronous ? QQmlComponent::Asynchronous : QQmlComponent::PreferSynchronous;
-            if (!d->component)
-                d->component.setObject(new QQmlComponent(qmlEngine(this), d->source, mode, this), this);
-        }
+        if (d->loadingFromSource)
+            d->createComponent();
         d->load();
     }
 }
@@ -1027,6 +1023,17 @@ void QQuickLoaderPrivate::updateStatus()
     }
 }
 
+void QQuickLoaderPrivate::createComponent()
+{
+    Q_Q(QQuickLoader);
+    const QQmlComponent::CompilationMode mode = asynchronous
+            ? QQmlComponent::Asynchronous
+            : QQmlComponent::PreferSynchronous;
+    QQmlContext *context = qmlContext(q);
+    component.setObject(new QQmlComponent(
+                            context->engine(), context->resolvedUrl(source), mode, q), q);
+}
+
 #include <moc_qquickloader_p.cpp>
 
 QT_END_NAMESPACE