redditmodel.cpp Example File
redditclient/redditmodel.cpp/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Network Auth module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 or (at your option) any later version ** approved by the KDE Free Qt Foundation. The licenses are as published by ** the Free Software Foundation and appearing in the file LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "redditmodel.h" #include <QtCore> #include <QtNetwork> RedditModel::RedditModel(QObject *parent) : QAbstractTableModel(parent) {} RedditModel::RedditModel(const QString &clientId, QObject *parent) : QAbstractTableModel(parent), redditWrapper(clientId) { grant(); } int RedditModel::rowCount(const QModelIndex &parent) const { Q_UNUSED(parent); return threads.size(); } int RedditModel::columnCount(const QModelIndex &parent) const { Q_UNUSED(parent); return threads.size() ? 1 : 0; } QVariant RedditModel::data(const QModelIndex &index, int role) const { Q_UNUSED(role); if (!index.isValid()) return QVariant(); if (role == Qt::DisplayRole) { const auto childrenObject = threads.at(index.row()); Q_ASSERT(childrenObject.value("data").isObject()); const auto dataObject = childrenObject.value("data").toObject(); return dataObject.value("title").toString(); } return QVariant(); } void RedditModel::grant() { redditWrapper.grant(); connect(&redditWrapper, &RedditWrapper::authenticated, this, &RedditModel::update); } void RedditModel::update() { auto reply = redditWrapper.requestHotThreads(); connect(reply, &QNetworkReply::finished, [=]() { if (reply->error() != QNetworkReply::NoError) { emit error(reply->errorString()); return; } const auto json = reply->readAll(); const auto document = QJsonDocument::fromJson(json); Q_ASSERT(document.isObject()); const auto rootObject = document.object(); Q_ASSERT(rootObject.value("kind").toString() == "Listing"); const auto dataValue = rootObject.value("data"); Q_ASSERT(dataValue.isObject()); const auto dataObject = dataValue.toObject(); const auto childrenValue = dataObject.value("children"); Q_ASSERT(childrenValue.isArray()); const auto childrenArray = childrenValue.toArray(); if (childrenArray.isEmpty()) return; beginInsertRows(QModelIndex(), threads.size(), childrenArray.size() + threads.size() - 1); for (const auto childValue : qAsConst(childrenArray)) { Q_ASSERT(childValue.isObject()); threads.append(childValue.toObject()); } endInsertRows(); }); }