Allow target path version in a parent module

For example, the QML Engine is now able to locate QtQml.Models 2.x
in both of the following target/installation paths:

- QT_INSTALL_QML/QtQml/Models.2
- QT_INSTALL_QML/QtQml.2/Models

This is required for QtQuick Controls 2. The target path of the module
is QT_INSTALL_QML/QtQuick/Controls.2. The built-in styles are installed
as sub-directories to be able to locate them from the controls module.

Some of the built-in styles provide their own C++ extensions via style-
specific imports (eg. the Material attached property is imported from
QtQuick.Controls.Material 2.0). The problem is that the QML Engine does
not find the module from QT_INSTALL_QML/QtQuick/Controls.2/Material,
but requires it to be installed outside the main controls module ie.
QT_INSTALL_QML/QtQuick/Controls/Material(.2). This makes it a) hard to
locate the styles from the main controls module, and b) conflicts with
the target path of QtQuick Controls 1.

[ChangeLog][QtQml] Made the QML Engine capable of locating QML sub-
modules from within a versioned parent module path. For example,
QtQml.Models 2.x can be either in QT_INSTALL_QML/QtQml/Models.2 or
in QT_INSTALL_QML/QtQml.2/Models.

Change-Id: I2fe4bbdd6d04dd1e80cbe9b3e7e02617658a0756
Task-number: QTBUG-52556
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/src/qml/qml/qqmlimport_p.h b/src/qml/qml/qqmlimport_p.h
index 628564ae34..0e7848730f 100644
--- a/src/qml/qml/qqmlimport_p.h
+++ b/src/qml/qml/qqmlimport_p.h
@@ -130,8 +130,7 @@ public:
 
     QList<CompositeSingletonReference> resolvedCompositeSingletons() const;
 
-    static QString completeQmldirPath(const QString &uri, const QString &base, int vmaj, int vmin,
-                                      QQmlImports::ImportVersion version);
+    static QStringList completeQmldirPaths(const QString &uri, const QStringList &basePaths, int vmaj, int vmin);
     static QString versionString(int vmaj, int vmin, ImportVersion version);
 
     static bool isLocal(const QString &url);