summaryrefslogtreecommitdiffstats
path: root/sources/pyside2/libpyside/destroylistener.cpp
blob: 319a126cff74c100dde4c8da447e43d9793e7ae8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt for Python.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <sbkpython.h>
#include "destroylistener.h"

#include <shiboken.h>

PySide::DestroyListener *PySide::DestroyListener::m_instance = nullptr;

namespace PySide
{

struct DestroyListenerPrivate
{
    static bool m_destroyed;
};


DestroyListener *DestroyListener::instance()
{
    if (!m_instance)
        m_instance = new DestroyListener(0);
    return m_instance;
}

void DestroyListener::destroy()
{
    if (m_instance) {
        m_instance->disconnect();
        delete m_instance;
        m_instance = 0;
    }
}

void DestroyListener::listen(QObject *obj)
{
    SbkObject *wrapper = Shiboken::BindingManager::instance().retrieveWrapper(obj);
    if (!wrapper) // avoid problem with multiple inheritance
        return;

    if (Py_IsInitialized() == 0)
        onObjectDestroyed(obj);
    else
        QObject::connect(obj, SIGNAL(destroyed(QObject *)), this, SLOT(onObjectDestroyed(QObject *)), Qt::DirectConnection);
}

void DestroyListener::onObjectDestroyed(QObject *obj)
{
    SbkObject *wrapper = Shiboken::BindingManager::instance().retrieveWrapper(obj);
    if (wrapper) //make sure the object exists before destroy
        Shiboken::Object::destroy(wrapper, obj);
}

DestroyListener::DestroyListener(QObject *parent)
    : QObject(parent)
{
    m_d = new DestroyListenerPrivate();
}

DestroyListener::~DestroyListener()
{
    delete m_d;
}

}//namespace