Fix up completion for plugin commands

src/common/CompletionModel.cpp

@@ -231,6 +231,10 @@ void CompletionModel::refresh(const QString &prefix, bool isFirstWord)
         addString(emote.first.string, TaggedString::Type::BTTVGlobalEmote);
     }
 
+    for (const auto &command : getApp()->commands->pluginCommands())
+    {
+        addString(command, TaggedString::PluginCommand);
+    }
     // Custom Chatterino commands
     for (const auto &command : getApp()->commands->items)
     {

src/common/CompletionModel.hpp

@@ -34,6 +34,7 @@ class CompletionModel : public QAbstractListModel
             CustomCommand,
             ChatterinoCommand,
             TwitchCommand,
+            PluginCommand,
         };
 
         TaggedString(QString _string, Type type);

src/controllers/commands/CommandController.cpp

@@ -3231,13 +3231,20 @@ bool CommandController::registerPluginCommand(const QString &commandName)
     this->commands_[commandName] = [commandName](const CommandContext &ctx) {
         return getApp()->plugins->tryExecPluginCommand(commandName, ctx);
     };
+    this->pluginCommands_.append(commandName);
     return true;
 }
 
 bool CommandController::unregisterPluginCommand(const QString &commandName)
 {
+    if (!this->pluginCommands_.contains(commandName))
+    {
+        return false;
+    }
+    this->pluginCommands_.removeAll(commandName);
     return this->commands_.erase(commandName) != 0;
 }
+
 void CommandController::registerCommand(const QString &commandName,
                                         CommandFunctionVariants commandFunction)
 {

src/controllers/commands/CommandController.hpp

@@ -46,6 +46,11 @@ public:
     bool registerPluginCommand(const QString &commandName);
     bool unregisterPluginCommand(const QString &commandName);
 
+    const QStringList &pluginCommands()
+    {
+        return this->pluginCommands_;
+    }
+
 private:
     void load(Paths &paths);
 
@@ -76,6 +81,7 @@ private:
         commandsSetting_;
 
     QStringList defaultChatterinoCommandAutoCompletions_;
+    QStringList pluginCommands_;
 };
 
 }  // namespace chatterino