AsynchronousCall.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <sfx2/sidebar/AsynchronousCall.hxx>
#include <utility>
#include <vcl/svapp.hxx>
 
namespace sfx2::sidebar {
 
AsynchronousCall::AsynchronousCall (Action aAction)
    : maAction(std::move(aAction)),
      mnCallId(nullptr)
{
}
 
AsynchronousCall::~AsynchronousCall()
{
    CancelRequest();
}
 
void AsynchronousCall::RequestCall()
{
    if (mnCallId == nullptr)
    {
        Link<void*,void> aLink (LINK(this, AsynchronousCall, HandleUserCall));
        mnCallId = Application::PostUserEvent(aLink);
    }
}
 
void AsynchronousCall::CancelRequest()
{
    if (mnCallId != nullptr)
    {
        Application::RemoveUserEvent(mnCallId);
        mnCallId = nullptr;
    }
}
 
void AsynchronousCall::Sync()
{
    if (mnCallId != nullptr) {
        maAction();
        CancelRequest();
    }
}
 
IMPL_LINK_NOARG(AsynchronousCall, HandleUserCall, void*, void )
{
    mnCallId = nullptr;
    if (maAction)
        maAction();
}
 
} // end of namespace sfx2::sidebar
 
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