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During the registerTypes() callback in a QML module plugin we only allow
types to be registered that match the module URI specified in the
qmldir.
We can observe in QtQuickControls 2 that sometimes we need to register
types outside of the namespace of the module itself. QQC2 is in
QtQuick.Controls but the module has internal types that are in
QtQuick.Controls.impl.
Types are intended to be registered once in the virtual registerTypes()
function. However as we don't allow for the registration of .impl to
happen in registerTypes(), QQC2 works around this by registering the
types in initializeEngine(), during which the namespace restriction is
not in place.
This workaround means that every time an application creates a
QQuickView (and thus new QML engine) and loads a QML file that imports
QQC2, we end up calling initializeEngine(), as opposed to
registerTypes() that is called only one single time in the application
process. As a consequence each time this happens we and up calling
qmlRegisterTypes() with the same times and leak memory this way, as
qmlRegisterType*() is supposed to register a new type and return a new
type id that can be passed to qmlUnregisterType.
To solve this this patch lifts the restriction on namespaces for
registered types during registerTypes(). The real world case of QQC2
shows that the restriction is limiting and also easy to work around.
With the restriction lifted QQC2 can now register all types once in
registerTypes() instead.
[ChangeLog][QtQml][Important Behavior Changes] QML module plugins used
to be limited to type registrations in the primary module namespace in
the virtual registerTypes() function. Module authors worked around this
limitation by placing necessary internal type registrations into
initializeEngine() that may cause memory leaks. Therefore this
restriction has been moved and types in any (non-protected) namespaces
can be registered in the registerTypes() function.
Change-Id: I5baf9718a0b0a591f6eb6d7e2dc83e13b204800d
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
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This is particularly useful for keeping the versions of related modules in
sync. For example, when QtQuick.Controls introduces new types or revisions
and bumps up the minor version, qmlRegisterModule() can be used to make the
same version available for QtQuick.Controls.Styles in case it doesn't have
new types or revisions to register.
[ChangeLog][QtQml] Introduced qmlRegisterModule() that can be used to
make a certain module version available, even if no types or revisions
are registered for that version.
Change-Id: I5ec457465cd778bb0adda55771d195f69cd4b31a
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
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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>
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The keyword no longer has a meaning for the new CI.
Change-Id: I699f2881e291cce02a6a608a8710638886e38daa
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
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This allows QtQuick.Controls 1.x and 2.x imports to co-exist even
if they are two different plugins with the same module directive.
Change-Id: Idee302439e3c2fd6813ba2f41b69144fbae7902c
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
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A C++ analog to the protected qmldir syntax, this is also a potential
performance improvement because we can avoid some file system accesses.
Change-Id: I41781a6cc72aa65bd2d397800345ea16ef442e90
Reviewed-by: Antti Piira <apiira@blackberry.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
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Previously, modules which registered types into a protected type
namespace were known as "strict" modules; now they are known as
"identified" modules.
This commit also adds a unit test to ensure that the module identifier
directive is the first command in the qmldir file.
Change-Id: I90e9d2c5b51ecb2b9d058c9fe9d9310fd3cd4f45
Reviewed-by: Matthew Vogt <matthew.vogt@nokia.com>
Reviewed-by: Bea Lam <bea.lam@nokia.com>
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Allow a module's qmldir to contain a module directive, which when
present specifies 'strict mode' import processing. In strict mode,
type registrations are only permitted into the namespace identified
in the qmldir file's module directive. In addition, any type
registrations to that namespace originating from other modules are
treated as error conditions.
Task-number: QTBUG-26551
Change-Id: I081bde2d3b83d3f28524440177fb2cd1ccee34ad
Reviewed-by: Chris Adams <christopher.adams@nokia.com>
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
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Re-order the imports for a script by increasing order of URI length.
This ensures that an import of the type 'import X.Y' is processed
after the import of 'import X' which contains the type definitions for
the namespace X.Y.
Task-number: QTBUG-24369
Change-Id: I1b06e9d114a97c9f47279f8f33383a27e0efb4bb
Reviewed-by: Chris Adams <christopher.adams@nokia.com>
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>
Reviewed-by: Martin Jones <martin.jones@nokia.com>
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Symbols beginning with QDeclarative are already exported
by the quick1 module.
Users can apply the bin/rename-qtdeclarative-symbols.sh
script to modify client code using the previous names of the
renamed symbols.
Task-number: QTBUG-23737
Change-Id: Ifaa482663767634931e8711a8e9bf6e404859e66
Reviewed-by: Martin Jones <martin.jones@nokia.com>
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