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neochat/src/models/publicroomlistmodel.h

146 lines
4.3 KiB
C++

// SPDX-FileCopyrightText: 2019 Black Hat <bhat@encom.eu.org>
// SPDX-License-Identifier: GPL-3.0-only
#pragma once
#include <QAbstractListModel>
#include <QObject>
#include <QQmlEngine>
#include <Quotient/csapi/list_public_rooms.h>
class NeoChatConnection;
/**
* @class PublicRoomListModel
*
* This class defines the model for visualising a list of public rooms.
*
* The model finds the public rooms visible to the given server (which doesn't have
* to be the user's home server) and can also apply a filter if desired.
*
* Due to the fact that the public room list could be huge the model is lazily loaded
* and requires that the next batch of rooms be manually called.
*/
class PublicRoomListModel : public QAbstractListModel
{
Q_OBJECT
QML_ELEMENT
/**
* @brief The current connection that the model is getting its rooms from.
*/
Q_PROPERTY(NeoChatConnection *connection READ connection WRITE setConnection NOTIFY connectionChanged)
/**
* @brief The server to get the public room list from.
*/
Q_PROPERTY(QString server READ server WRITE setServer NOTIFY serverChanged)
/**
* @brief The text to search the public room list for.
*/
Q_PROPERTY(QString searchText READ searchText WRITE setSearchText NOTIFY searchTextChanged)
/**
* @brief Whether only space rooms should be shown.
*/
Q_PROPERTY(bool showOnlySpaces READ showOnlySpaces WRITE setShowOnlySpaces NOTIFY showOnlySpacesChanged)
/**
* @brief Whether the model is searching.
*/
Q_PROPERTY(bool searching READ searching NOTIFY searchingChanged)
public:
/**
* @brief Defines the model roles.
*/
enum EventRoles {
DisplayNameRole = Qt::DisplayRole + 1, /**< The name of the room. */
AvatarUrlRole, /**< The source URL for the room's avatar. */
TopicRole, /**< The room topic. */
RoomIdRole, /**< The room matrix ID. */
AliasRole, /**< The room canonical alias. */
MemberCountRole, /**< The number of members in the room. */
AllowGuestsRole, /**< Whether the room allows guest users. */
WorldReadableRole, /**< Whether the room events can be seen by non-members. */
IsJoinedRole, /**< Whether the local user has joined the room. */
IsSpaceRole, /**< Whether the room is a space. */
};
explicit PublicRoomListModel(QObject *parent = nullptr);
/**
* @brief Get the given role value at the given index.
*
* @sa QAbstractItemModel::data
*/
[[nodiscard]] QVariant data(const QModelIndex &index, int role = DisplayNameRole) const override;
/**
* @brief Number of rows in the model.
*
* @sa QAbstractItemModel::rowCount
*/
[[nodiscard]] int rowCount(const QModelIndex &parent = QModelIndex()) const override;
/**
* @brief Returns a mapping from Role enum values to role names.
*
* @sa EventRoles, QAbstractItemModel::roleNames()
*/
[[nodiscard]] QHash<int, QByteArray> roleNames() const override;
[[nodiscard]] NeoChatConnection *connection() const;
void setConnection(NeoChatConnection *connection);
[[nodiscard]] QString server() const;
void setServer(const QString &value);
[[nodiscard]] QString searchText() const;
void setSearchText(const QString &searchText);
[[nodiscard]] bool showOnlySpaces() const;
void setShowOnlySpaces(bool showOnlySpaces);
[[nodiscard]] bool searching() const;
/**
* @brief Search the room directory.
*
* @param limit the maximum number of rooms to load.
*/
Q_INVOKABLE void search(int limit = 50);
private:
QPointer<NeoChatConnection> m_connection = nullptr;
QString m_server;
QString m_searchText;
bool m_showOnlySpaces = false;
/**
* @brief Load the next set of rooms.
*
* @param limit the maximum number of rooms to load.
*/
void next(int limit = 50);
bool canFetchMore(const QModelIndex &parent) const override;
void fetchMore(const QModelIndex &parent) override;
bool attempted = false;
bool m_searching = false;
QString nextBatch;
QList<Quotient::PublicRoomsChunk> rooms;
Quotient::QueryPublicRoomsJob *job = nullptr;
Q_SIGNALS:
void connectionChanged();
void serverChanged();
void searchTextChanged();
void showOnlySpacesChanged();
void searchingChanged();
};