File indexing completed on 2024-11-10 04:40:37

 /*
     SPDX-FileCopyrightText: 2009 Tobias Koenig <tokoe@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "akonadicore_debug.h"
 #include "asyncselectionhandler_p.h"
 #include "models/entitytreemodel.h"
 
 using namespace Akonadi;
 
 AsyncSelectionHandler::AsyncSelectionHandler(QAbstractItemModel *model, QObject *parent)
     : QObject(parent)
     , mModel(model)
 {
     Q_ASSERT(mModel);
 
     connect(mModel, &QAbstractItemModel::rowsInserted, this, &AsyncSelectionHandler::rowsInserted);
 }
 
 AsyncSelectionHandler::~AsyncSelectionHandler()
 {
 }
 
 bool AsyncSelectionHandler::scanSubTree(const QModelIndex &index, bool searchForItem)
 {
     if (searchForItem) {
         const Item::Id id = index.data(EntityTreeModel::ItemIdRole).toLongLong();
 
         if (mItem.id() == id) {
             Q_EMIT itemAvailable(index);
             return true;
         }
     } else {
         const Collection::Id id = index.data(EntityTreeModel::CollectionIdRole).toLongLong();
 
         if (mCollection.id() == id) {
             Q_EMIT collectionAvailable(index);
             return true;
         }
     }
 
     for (int row = 0; row < mModel->rowCount(index); ++row) {
         const QModelIndex childIndex = mModel->index(row, 0, index);
         // This should not normally happen, but if it does we end up in an endless loop
         if (!childIndex.isValid()) {
             qCWarning(AKONADICORE_LOG) << "Invalid child detected: " << index.data().toString();
             Q_ASSERT(false);
             return false;
         }
         if (scanSubTree(childIndex, searchForItem)) {
             return true;
         }
     }
 
     return false;
 }
 
 void AsyncSelectionHandler::waitForCollection(const Collection &collection)
 {
     mCollection = collection;
 
     scanSubTree(QModelIndex(), false);
 }
 
 void AsyncSelectionHandler::waitForItem(const Item &item)
 {
     mItem = item;
 
     scanSubTree(QModelIndex(), true);
 }
 
 void AsyncSelectionHandler::rowsInserted(const QModelIndex &parent, int start, int end)
 {
     for (int i = start; i <= end; ++i) {
         scanSubTree(mModel->index(i, 0, parent), false);
         scanSubTree(mModel->index(i, 0, parent), true);
     }
 }
 
 #include "moc_asyncselectionhandler_p.cpp"