replaced raw pointers with unique_ptr

src/widgets/dialogs/switcher/QuickSwitcherModel.cpp

@@ -4,18 +4,9 @@ namespace chatterino {
 
 QuickSwitcherModel::QuickSwitcherModel(QWidget *parent)
     : QAbstractListModel(parent)
-    , items_(INITIAL_ITEMS_SIZE)
 {
 }
 
-QuickSwitcherModel::~QuickSwitcherModel()
-{
-    for (AbstractSwitcherItem *item : this->items_)
-    {
-        delete item;
-    }
-}
-
 int QuickSwitcherModel::rowCount(const QModelIndex &parent) const
 {
     return this->items_.size();
@@ -30,29 +21,29 @@ QVariant QuickSwitcherModel::data(const QModelIndex &index,
     if (index.row() >= this->items_.size())
         return QVariant();
 
-    auto item = this->items_.at(index.row());
+    auto item = this->items_[index.row()].get();
     // See https://stackoverflow.com/a/44503822 .
     return QVariant::fromValue(static_cast<void *>(item));
 }
 
-void QuickSwitcherModel::addItem(AbstractSwitcherItem *item)
+void QuickSwitcherModel::addItem(std::unique_ptr<AbstractSwitcherItem> item)
 {
     // {begin,end}InsertRows needs to be called to notify attached views
     this->beginInsertRows(QModelIndex(), this->items_.size(),
                           this->items_.size());
-    this->items_.append(item);
+    this->items_.push_back(std::move(item));
     this->endInsertRows();
 }
 
 void QuickSwitcherModel::clear()
 {
+    if (this->items_.empty())
+        return;
+
     // {begin,end}RemoveRows needs to be called to notify attached views
     this->beginRemoveRows(QModelIndex(), 0, this->items_.size() - 1);
 
-    for (AbstractSwitcherItem *item : this->items_)
-    {
-        delete item;
-    }
+    // clear
     this->items_.clear();
 
     this->endRemoveRows();