Add GUI to change hidden events per room

This adds a dialog to the room settings in which the user can choose
which of these three event types they want to hide (additionally to the
default):

  - m.room.member
  - m.room.power_levels
  - m.sticker

The current state is read when room settings are opened and saved when
new settings are accepted.

src/ui/RoomSettings.cpp

@@ -12,14 +12,19 @@
 #include <QMimeDatabase>
 #include <QStandardPaths>
 #include <QVBoxLayout>
+#include <algorithm>
 #include <mtx/responses/common.hpp>
 #include <mtx/responses/media.hpp>
 
 #include "Cache.h"
+#include "Cache_p.h"
 #include "Config.h"
 #include "Logging.h"
 #include "MatrixClient.h"
 #include "Utils.h"
+#include "mtx/events/event_type.hpp"
+#include "mtx/events/nheko_extensions/hidden_events.hpp"
+#include "mtxclient/http/client.hpp"
 #include "ui/TextField.h"
 
 using namespace mtx::events;
@@ -224,6 +229,25 @@ RoomSettings::RoomSettings(QString roomid, QObject *parent)
         accessRules_ = 4;
     }
     emit accessJoinRulesChanged();
+
+    // Get room's hidden events and store it in member variable.
+    using mtx::events::EventType;
+    if (auto hiddenEvents =
+          cache::client()->getAccountData(EventType::NhekoHiddenEvents, roomid_.toStdString())) {
+        if (auto tmp = std::get_if<mtx::events::EphemeralEvent<
+              mtx::events::account_data::nheko_extensions::HiddenEvents>>(&*hiddenEvents)) {
+            const auto &types = tmp->content.hidden_event_types;
+            auto is_hidden{[&types](EventType searchFor) {
+                return std::find_if(types.begin(), types.end(), [&searchFor](const auto curType) {
+                           return curType == searchFor;
+                       }) != types.end();
+            }};
+
+            hiddenEvents_ = {is_hidden(EventType::RoomMember),
+                             is_hidden(EventType::RoomPowerLevels),
+                             is_hidden(EventType::Sticker)};
+        }
+    }
 }
 
 QString
@@ -294,6 +318,20 @@ RoomSettings::accessJoinRules()
     return accessRules_;
 }
 
+bool
+RoomSettings::eventHidden(int index)
+{
+    try {
+        // Is empty if there are no preferences stored for this room.
+        if (!hiddenEvents_.empty()) {
+            return hiddenEvents_.at(index);
+        }
+    } catch (...) {
+        nhlog::db()->warn("Failed to retrieve hidden event setting at {}", index);
+    }
+    return false;
+}
+
 void
 RoomSettings::enableEncryption()
 {
@@ -404,6 +442,38 @@ RoomSettings::openEditModal()
     });
 }
 
+void
+RoomSettings::saveHiddenEventsSettings(const bool toggleRoomMember,
+                                       const bool toggleRoomPowerLevels,
+                                       const bool toggleSticker)
+{
+    const auto roomid = roomid_.toStdString();
+    nhlog::ui()->debug("Setting events to hidden in room {}: m.room.member={}, "
+                       "m.room.power_levels={}, m.sticker={}",
+                       roomid,
+                       toggleRoomMember,
+                       toggleRoomPowerLevels,
+                       toggleSticker);
+
+    mtx::events::account_data::nheko_extensions::HiddenEvents hiddenEvents;
+    hiddenEvents.hidden_event_types = {
+      EventType::Reaction, EventType::CallCandidates, EventType::Unsupported};
+    if (toggleRoomMember) {
+        hiddenEvents.hidden_event_types.emplace_back(mtx::events::EventType::RoomMember);
+    }
+    if (toggleRoomPowerLevels) {
+        hiddenEvents.hidden_event_types.emplace_back(mtx::events::EventType::RoomPowerLevels);
+    }
+    if (toggleSticker) {
+        hiddenEvents.hidden_event_types.emplace_back(mtx::events::EventType::Sticker);
+    }
+    http::client()->put_room_account_data(roomid, hiddenEvents, [&roomid](mtx::http::RequestErr e) {
+        if (e) {
+            nhlog::net()->error("Failed to update room account data in {}: {}", roomid, *e);
+        }
+    });
+}
+
 void
 RoomSettings::changeNotifications(int currentIndex)
 {

src/ui/RoomSettings.h

@@ -11,6 +11,7 @@
 #include <QString>
 
 #include <mtx/events/guest_access.hpp>
+#include <vector>
 
 #include "CacheStructs.h"
 
@@ -107,8 +108,11 @@ public:
     Q_INVOKABLE void enableEncryption();
     Q_INVOKABLE void updateAvatar();
     Q_INVOKABLE void openEditModal();
+    Q_INVOKABLE void
+    saveHiddenEventsSettings(bool toggleRoomMember, bool toggleRoomPowerLevels, bool toggleSticker);
     Q_INVOKABLE void changeAccessRules(int index);
     Q_INVOKABLE void changeNotifications(int currentIndex);
+    Q_INVOKABLE bool eventHidden(int index);
 
 signals:
     void loadingChanged();
@@ -137,4 +141,5 @@ private:
     RoomInfo info_;
     int notifications_ = 0;
     int accessRules_   = 0;
+    std::vector<bool> hiddenEvents_;
 };