1 | // Copyright (C) 2016 The Qt Company Ltd. |
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #include "qqmlpropertyvalueinterceptor_p.h" |
5 | |
6 | QT_BEGIN_NAMESPACE |
7 | |
8 | /*! |
9 | \class QQmlPropertyValueInterceptor |
10 | \brief The QQmlPropertyValueInterceptor class is inherited by property interceptors such as Behavior. |
11 | \internal |
12 | |
13 | This class intercepts property writes, allowing for custom handling. For example, Behavior uses this |
14 | interception to provide a default animation for all changes to a property's value. |
15 | */ |
16 | |
17 | /*! |
18 | Constructs a QQmlPropertyValueInterceptor. |
19 | */ |
20 | QQmlPropertyValueInterceptor::QQmlPropertyValueInterceptor() : m_next(nullptr) |
21 | { |
22 | } |
23 | |
24 | QQmlPropertyValueInterceptor::~QQmlPropertyValueInterceptor() |
25 | { |
26 | } |
27 | |
28 | /*! |
29 | \internal |
30 | Called when a BindableProperty metacall gets intercepted. The default implementation does nothing |
31 | and simply returns false. |
32 | A subclass which can properly intercept the metacall should return true after doing its work. |
33 | \a bindable is the pointer to the QUntypedBindable passed through the metacall |
34 | \a target is the QUntypedBindable of the intercepted property |
35 | */ |
36 | bool QQmlPropertyValueInterceptor::bindable(QUntypedBindable *bindable, QUntypedBindable target) |
37 | { |
38 | Q_UNUSED(bindable); |
39 | Q_UNUSED(target) |
40 | return false; |
41 | } |
42 | |
43 | /*! |
44 | \fn void QQmlPropertyValueInterceptor::setTarget(const QQmlProperty &property) |
45 | Set the target \a property for the value interceptor. This method will |
46 | be called by the QML engine when assigning a value interceptor. |
47 | */ |
48 | |
49 | /*! |
50 | \fn void QQmlPropertyValueInterceptor::write(const QVariant &value) |
51 | This method will be called when a new \a value is assigned to the property being intercepted. |
52 | */ |
53 | |
54 | QT_END_NAMESPACE |
55 | |