move DeleteListener contraptions to toplevel writer includes

Change-Id: Ifa1e75b62da4174f27fca52eb86559cd6a381513
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132141
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 92 insertions, 0 deletions

diff --git a/sw/inc/deletelistener.hxx b/sw/inc/deletelistener.hxx
new file mode 100644
index 000000000000..2b212e418fef
--- /dev/null
+++ b/sw/inc/deletelistener.hxx
@@ -0,0 +1,92 @@
+/* -*- 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 (rHint.GetId() != SfxHintId::SwLegacyModify)
+            return;
+        auto pLegacy = static_cast<const sw::LegacyModifyHint*>(&rHint);
+        if (pLegacy->GetWhich() == 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: */