Public room directory.

src/publicroomlistmodel.cpp

@@ -0,0 +1,89 @@
+#include "publicroomlistmodel.h"
+
+#include "csapi/list_public_rooms.h"
+
+PublicRoomListModel::PublicRoomListModel(QObject* parent)
+    : QAbstractListModel(parent) {}
+
+void PublicRoomListModel::setConnection(Connection* conn) {
+  if (m_connection == conn)
+    return;
+
+  beginResetModel();
+
+  nextBatch = "";
+  attempted = false;
+  rooms.clear();
+
+  if (m_connection) {
+    m_connection->disconnect(this);
+  }
+
+  endResetModel();
+
+  m_connection = conn;
+
+  if (m_connection) {
+    next();
+  }
+
+  emit connectionChanged();
+}
+
+void PublicRoomListModel::next(int count) {
+  if (count < 1)
+    return;
+
+  if (attempted && nextBatch.isEmpty())
+    return;
+
+  auto job = m_connection->callApi<GetPublicRoomsJob>(count, nextBatch);
+
+  connect(job, &BaseJob::success, this, [=] {
+    auto resp = job->data();
+    nextBatch = resp.nextBatch;
+
+    this->beginInsertRows({}, rooms.count(),
+                          rooms.count() + resp.chunk.count());
+    rooms.append(resp.chunk);
+    this->endInsertRows();
+  });
+
+  connect(job, &BaseJob::finished, this, [=] { attempted = true; });
+}
+
+QVariant PublicRoomListModel::data(const QModelIndex& index, int role) const {
+  if (!index.isValid())
+    return QVariant();
+
+  if (index.row() >= rooms.count()) {
+    qDebug() << "PublicRoomListModel, something's wrong: index.row() >= "
+                "rooms.count()";
+    return {};
+  }
+  auto room = rooms.at(index.row());
+  if (role == NameRole) {
+    return room.name;
+  }
+  if (role == TopicRole) {
+    return room.topic;
+  }
+
+  return {};
+}
+
+QHash<int, QByteArray> PublicRoomListModel::roleNames() const {
+  QHash<int, QByteArray> roles;
+
+  roles[NameRole] = "name";
+  roles[TopicRole] = "topic";
+
+  return roles;
+}
+
+int PublicRoomListModel::rowCount(const QModelIndex& parent) const {
+  if (parent.isValid())
+    return 0;
+
+  return rooms.count();
+}