[Room][UserList] Introduce style delegate (#6981)

* [Room] Additionally show a tab for friends and ignored users instead of just all online users.

Took 21 minutes


Took 12 minutes

* [Room][UserList] Introduce style delegate for user list
- Allow users to set a card name and parameters as their background banner
- Allow mods to white/blacklist cards
- Allow toggling back to the old display style

Took 7 minutes

Took 28 seconds

Took 2 minutes

Took 2 minutes

* Right checkstate.

Took 14 minutes


Took 2 minutes

* Utility for test.

Took 9 minutes

Took 8 seconds

Took 2 seconds

* Lint.

Took 10 minutes

* Algorithm for sql schema migration

Took 13 minutes

* Use {prefix}, bound card name, return errors.

Took 27 seconds

* Convert queue to while loop.

Took 19 seconds

* Hover popup.

Took 36 minutes

Took 1 minute

* More granular signals, popup for user info.

Took 25 minutes

Took 8 seconds

Took 16 minutes

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/server/user/user_info_popup.h

@@ -0,0 +1,181 @@
+#ifndef COCKATRICE_USER_INFO_POPUP_H
+#define COCKATRICE_USER_INFO_POPUP_H
+
+#include "../../interface/widgets/server/game_type_map.h"
+#include "user_list_painter.h"
+
+#include <QFrame>
+#include <QListView>
+#include <QMap>
+#include <QPixmap>
+#include <QStandardItemModel>
+#include <libcockatrice/network/server/remote/user_level.h>
+#include <libcockatrice/protocol/pb/response.pb.h>
+#include <libcockatrice/protocol/pb/serverinfo_game.pb.h>
+#include <libcockatrice/protocol/pb/serverinfo_user.pb.h>
+
+class AbstractClient;
+class QLabel;
+class QPushButton;
+class TabSupervisor;
+
+// ── Roles ─────────────────────────────────────────────────────────────────────
+
+namespace PopupRoles
+{
+constexpr int GameData = Qt::UserRole + 10;
+}
+
+// ── Header widget ─────────────────────────────────────────────────────────────
+
+/**
+ * @class UserInfoHeaderWidget
+ * @brief Paints the enlarged banner card art + circular avatar section at the
+ *        top of the UserInfoPopup.
+ *
+ * Layout mirrors UserListPainter but at a larger scale: the card art fills the
+ * full width as a semi-transparent background, a bottom gradient ensures the
+ * avatar and username text remain legible, and the status ring colour matches
+ * the UserListPainter convention.
+ */
+class UserInfoHeaderWidget : public QWidget
+{
+    Q_OBJECT
+
+    static constexpr int HeaderHeight = 130;
+    static constexpr int AvatarSize = 68;
+    static constexpr int AvatarPawnSize = 46;
+    static constexpr int LeftPad = 14;
+    static constexpr int AvatarToTextGap = 10;
+
+public:
+    explicit UserInfoHeaderWidget(QWidget *parent = nullptr);
+
+    void setUserData(const ServerInfo_User &user,
+                     bool online,
+                     const QPixmap &avatar,
+                     const QPixmap &cardArt,
+                     const CardArtParams &params);
+
+protected:
+    void paintEvent(QPaintEvent *e) override;
+
+private:
+    ServerInfo_User m_user;
+    bool m_online = false;
+    QPixmap m_avatar;
+    QPixmap m_cardArt;
+    CardArtParams m_params;
+};
+
+// ── Main popup ────────────────────────────────────────────────────────────────
+
+/**
+ * @class UserInfoPopup
+ * @brief Floating panel showing an enlarged user card, quick action buttons,
+ *        and a live scrollable games list.
+ *
+ * Lifecycle (mirrors DeckEditorDeckDockWidget):
+ *   - showForUser() — populate, position externally, call show()
+ *   - mouseEnteredPopup / mouseLeftPopup — caller manages hide timer
+ *   - closeRequested() — emitted by the internal close button
+ *
+ * The popup is a Qt::Tool frameless child so windowOpacity animations and
+ * move() in screen coordinates work identically to CardInfoPictureEnlargedWidget.
+ *
+ * Action signals map 1-to-1 to UserContextMenu::exec*() methods so all action
+ * logic stays in one place.
+ */
+class UserInfoPopup : public QFrame
+{
+    Q_OBJECT
+
+    static constexpr int PopupWidth = 316;
+
+public:
+    explicit UserInfoPopup(TabSupervisor *tabSupervisor,
+                           AbstractClient *client,
+                           const QMap<QString, QPixmap> *avatarCache,
+                           const QMap<QString, QPixmap> *cardArtCache,
+                           const QMap<QString, CardArtParams> *cardArtParamsMap,
+                           QWidget *parent);
+
+    /**
+     * Populate the popup for @p userName and kick off a game list fetch.
+     * Call show() / move() externally after this.
+     */
+    void
+    showForUser(const QString &userName, const ServerInfo_User &userInfo, bool online, bool isBuddy, bool isIgnored);
+    void fetchGames();
+
+    [[nodiscard]] QString currentUser() const
+    {
+        return m_currentUser;
+    }
+
+    /** Called when buddy/ignore status changes externally while popup is open. */
+    void updateActionButtons(const ServerInfo_User &userInfo, bool online, bool isBuddy, bool isIgnored);
+
+signals:
+    void mouseEnteredPopup();
+    void mouseLeftPopup();
+    void closeRequested();
+
+    /** Emitted when the user requests joining or spectating a game in the list. */
+    void joinGameRequested(int gameId, int roomId, bool asSpectator);
+
+    // ── Action signals — connect to UserContextMenu::exec*() ──────────────────
+    void chatRequested(const QString &userName);
+    void detailsRequested(const QString &userName);
+    void showGamesRequested(const QString &userName);
+    void addBuddyRequested(const QString &userName);
+    void removeBuddyRequested(const QString &userName);
+    void addIgnoreRequested(const QString &userName);
+    void removeIgnoreRequested(const QString &userName);
+    void banRequested(const QString &userName);
+    void warnRequested(const QString &userName);
+    void banHistoryRequested(const QString &userName);
+    void warnHistoryRequested(const QString &userName);
+    void adminNotesRequested(const QString &userName);
+    void promoteToModRequested(const QString &userName);
+    void demoteFromModRequested(const QString &userName);
+    void promoteToJudgeRequested(const QString &userName);
+    void demoteFromJudgeRequested(const QString &userName);
+
+protected:
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+    void enterEvent(QEnterEvent *e) override;
+#else
+    void enterEvent(QEvent *e) override;
+#endif
+    void leaveEvent(QEvent *e) override;
+
+private slots:
+    void refreshGames();
+    void onGamesReceived(const Response &r, const QString &forUser);
+    void onGamesContextMenu(const QPoint &pos);
+
+private:
+    void buildUi();
+    void rebuildActionButtons(const ServerInfo_User &userInfo, bool online, bool isBuddy, bool isIgnored);
+
+    TabSupervisor *m_ts;
+    AbstractClient *m_client;
+    const QMap<QString, QPixmap> *m_avatarCache;
+    const QMap<QString, QPixmap> *m_cardArtCache;
+    const QMap<QString, CardArtParams> *m_cardArtParamsMap;
+
+    QString m_currentUser;
+    ServerInfo_User m_currentUserInfo;
+    bool m_currentOnline = false;
+
+    UserInfoHeaderWidget *m_header;
+    QWidget *m_actionArea; ///< rebuilt per user
+    QListView *m_gamesView;
+    QStandardItemModel *m_gamesModel;
+    QLabel *m_gamesStatus;
+    QPushButton *m_closeBtn;
+    QPushButton *m_refreshBtn;
+};
+
+#endif // COCKATRICE_USER_INFO_POPUP_H