Add option to hide deleted messages

Implements #430

src/messageeventmodel.cpp

@@ -66,6 +66,7 @@ QHash<int, QByteArray> MessageEventModel::roleNames() const
     roles[AuthorDisplayNameRole] = "authorDisplayName";
     roles[IsNameChangeRole] = "isNameChange";
     roles[IsAvatarChangeRole] = "isAvatarChange";
+    roles[IsRedactedRole] = "isRedacted";
     return roles;
 }
 
@@ -894,6 +895,9 @@ QVariant MessageEventModel::data(const QModelIndex &idx, int role) const
         }
         return false;
     }
+    if (role == IsRedactedRole) {
+        return evt.isRedacted();
+    }
 
     return {};
 }

src/messageeventmodel.h

@@ -71,6 +71,7 @@ public:
         AuthorDisplayNameRole,
         IsNameChangeRole,
         IsAvatarChangeRole,
+        IsRedactedRole,
         LastRole, // Keep this last
     };
     Q_ENUM(EventRoles)

src/messagefiltermodel.cpp

@@ -25,6 +25,10 @@ MessageFilterModel::MessageFilterModel(QObject *parent)
         beginResetModel();
         endResetModel();
     });
+    connect(NeoChatConfig::self(), &NeoChatConfig::ShowDeletedMessagesChanged, this, [this] {
+        beginResetModel();
+        endResetModel();
+    });
 }
 
 bool MessageFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
@@ -39,6 +43,9 @@ bool MessageFilterModel::filterAcceptsRow(int sourceRow, const QModelIndex &sour
     if (index.data(MessageEventModel::IsAvatarChangeRole).toBool() && !NeoChatConfig::self()->showAvatarUpdate()) {
         return false;
     }
+    if (index.data(MessageEventModel::IsRedactedRole).toBool() && !NeoChatConfig::self()->showDeletedMessages()) {
+        return false;
+    }
 
     if (specialMarks == EventStatus::Hidden || specialMarks == EventStatus::Replaced) {
         return false;

src/neochatconfig.kcfg

@@ -83,6 +83,10 @@
       <label>Show avatar update events in the timeline</label>
       <default>true</default>
     </entry>
+    <entry name="ShowDeletedMessages" type="bool">
+      <label>Show deleted messages in the timeline</label>
+      <default>true</default>
+    </entry>
     <entry name="ShowLinkPreview" type="bool">
       <label>Show preview of the links in the chat messages</label>
     </entry>

src/qml/Settings/GeneralSettingsPage.qml

@@ -113,6 +113,19 @@ Kirigami.ScrollablePage {
                         Config.save()
                     }
                 }
+
+                MobileForm.FormDelegateSeparator { above: showAvatarChangeDelegate; below: showDeletedMessages }
+
+                MobileForm.FormCheckDelegate {
+                    id: showDeletedMessages
+                    text: i18n("Show deleted messages")
+                    checked: Config.showDeletedMessages
+                    enabled: !Config.isShowDeletedMessagesImmutable
+                    onToggled: {
+                        Config.showDeletedMessages = checked
+                        Config.save()
+                    }
+                }
             }
         }