File indexing completed on 2024-05-19 05:38:36

 /*
     SPDX-FileCopyrightText: 2023 Fushan Wen <qydwhotmail@gmail.com>
 
     SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
 #include "mpris2filterproxymodel.h"
 
 #include "mpris2sourcemodel.h"
 
 std::shared_ptr<Mpris2FilterProxyModel> Mpris2FilterProxyModel::self()
 {
     static std::weak_ptr<Mpris2FilterProxyModel> s_model;
     if (s_model.expired()) {
         std::shared_ptr<Mpris2FilterProxyModel> ptr{new Mpris2FilterProxyModel};
         s_model = ptr;
         return ptr;
     }
 
     return s_model.lock();
 }
 
 Mpris2FilterProxyModel::Mpris2FilterProxyModel(QObject *parent)
     : QSortFilterProxyModel(parent)
     , m_sourceModel(Mpris2SourceModel::self())
 {
     // Must update m_proxyPidList before QSortFilterProxyModel receives updates from the source model,
     // so when filterAcceptsRow is called, m_proxyPidList is the latest
     connect(m_sourceModel.get(), &QAbstractListModel::rowsInserted, this, &Mpris2FilterProxyModel::onRowsInserted);
     connect(m_sourceModel.get(), &QAbstractListModel::rowsAboutToBeRemoved, this, &Mpris2FilterProxyModel::onRowsAboutToBeRemoved);
     connect(m_sourceModel.get(), &QAbstractListModel::dataChanged, this, &Mpris2FilterProxyModel::onDataChanged);
     setSourceModel(m_sourceModel.get());
     connect(m_sourceModel.get(), &QAbstractListModel::rowsInserted, this, &Mpris2FilterProxyModel::invalidateRowsFilter);
     connect(m_sourceModel.get(), &QAbstractListModel::rowsRemoved, this, &Mpris2FilterProxyModel::invalidateRowsFilter);
     connect(m_sourceModel.get(), &QAbstractListModel::dataChanged, this, &Mpris2FilterProxyModel::invalidateRowsFilter);
 }
 
 Mpris2FilterProxyModel::~Mpris2FilterProxyModel()
 {
 }
 
 bool Mpris2FilterProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &) const
 {
     if (m_proxyPidList.empty()) {
         return true;
     }
 
     const unsigned instancePid = m_sourceModel->index(sourceRow).data(Mpris2SourceModel::InstancePidRole).toUInt();
     return !m_proxyPidList.contains(instancePid);
 }
 
 void Mpris2FilterProxyModel::onRowsInserted(const QModelIndex &, int first, int)
 {
     if (const unsigned proxyPid = m_sourceModel->index(first).data(Mpris2SourceModel::KDEPidRole).toUInt(); proxyPid > 0) {
         m_proxyPidList.emplace(proxyPid);
     }
 }
 
 void Mpris2FilterProxyModel::onRowsAboutToBeRemoved(const QModelIndex &, int first, int)
 {
     if (const unsigned proxyPid = m_sourceModel->index(first).data(Mpris2SourceModel::KDEPidRole).toUInt(); proxyPid > 0) {
         m_proxyPidList.erase(proxyPid);
         // invalidateRowsFilter is called after rowsRemoved
     }
 }
 
 void Mpris2FilterProxyModel::onDataChanged(const QModelIndex &topLeft, const QModelIndex &, const QList<int> &roles)
 {
     if (!roles.contains(Mpris2SourceModel::KDEPidRole)) {
         return;
     }
 
     if (const unsigned proxyPid = topLeft.data(Mpris2SourceModel::KDEPidRole).toUInt(); proxyPid > 0) {
         m_proxyPidList.emplace(proxyPid);
     }
 }
 
 #include "moc_mpris2filterproxymodel.cpp"