summaryrefslogtreecommitdiffstats
path: root/sw/inc/deletelistener.hxx
blob: bfdc0926d3b68f17c5e1fcdd8e25a01d48602410 (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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#pragma once

#include <svl/listener.hxx>
#include <svl/lstner.hxx>
#include "calbck.hxx"

class SwDeleteListener final : public SwClient
{
private:
    SwModify* m_pModify;

    virtual void SwClientNotify(const SwModify&, const SfxHint& rHint) override
    {
        if (auto pLegacy = dynamic_cast<const sw::LegacyModifyHint*>(&rHint))
        {
            if (pLegacy->m_pOld && pLegacy->m_pOld->Which() == RES_OBJECTDYING)
            {
                m_pModify->Remove(this);
                m_pModify = nullptr;
            }
        }
    }

public:
    SwDeleteListener(SwModify& rModify)
        : m_pModify(&rModify)
    {
        m_pModify->Add(this);
    }

    bool WasDeleted() const { return !m_pModify; }

    virtual ~SwDeleteListener() override
    {
        if (!m_pModify)
            return;
        m_pModify->Remove(this);
    }
};

class SvtDeleteListener final : public SvtListener
{
private:
    bool bObjectDeleted;

public:
    explicit SvtDeleteListener(SvtBroadcaster& rNotifier)
        : bObjectDeleted(false)
    {
        StartListening(rNotifier);
    }

    virtual void Notify(const SfxHint& rHint) override
    {
        if (rHint.GetId() == SfxHintId::Dying)
            bObjectDeleted = true;
    }

    bool WasDeleted() const { return bObjectDeleted; }
};

class SfxDeleteListener final : public SfxListener
{
private:
    bool bObjectDeleted;

public:
    explicit SfxDeleteListener(SfxBroadcaster& rNotifier)
        : bObjectDeleted(false)
    {
        StartListening(rNotifier);
    }

    virtual void Notify(SfxBroadcaster& /*rBC*/, const SfxHint& rHint) override
    {
        if (rHint.GetId() == SfxHintId::Dying)
            bObjectDeleted = true;
    }

    bool WasDeleted() const { return bObjectDeleted; }
};

/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */