feat: add "tags" or "keyword" support for settings (#5585)

this allows us to search for both "ffz" and "frankerfacez" when searching for FrankerFaceZ settings, without trying to force add both into the setting name

src/widgets/settingspages/SettingWidget.hpp

@@ -0,0 +1,107 @@
+#pragma once
+
+#include "common/ChatterinoSetting.hpp"
+#include "util/QMagicEnum.hpp"
+#include "widgets/settingspages/GeneralPageView.hpp"
+
+#include <pajlada/signals/signalholder.hpp>
+#include <QBoxLayout>
+#include <QComboBox>
+#include <QLabel>
+#include <QObject>
+#include <QString>
+#include <QStringBuilder>
+#include <QStringList>
+#include <QtContainerFwd>
+#include <QWidget>
+
+namespace chatterino {
+
+class GeneralPageView;
+
+class SettingWidget : QWidget
+{
+    Q_OBJECT
+
+    explicit SettingWidget(const QString &mainKeyword);
+
+public:
+    ~SettingWidget() override = default;
+    SettingWidget &operator=(const SettingWidget &) = delete;
+    SettingWidget &operator=(SettingWidget &&) = delete;
+    SettingWidget(const SettingWidget &other) = delete;
+    SettingWidget(SettingWidget &&other) = delete;
+
+    static SettingWidget *checkbox(const QString &label, BoolSetting &setting);
+    static SettingWidget *inverseCheckbox(const QString &label,
+                                          BoolSetting &setting);
+    template <typename T>
+    static SettingWidget *dropdown(const QString &label,
+                                   EnumStringSetting<T> &setting)
+    {
+        auto *widget = new SettingWidget(label);
+
+        auto *lbl = new QLabel(label % ":");
+        auto *combo = new ComboBox;
+        combo->setFocusPolicy(Qt::StrongFocus);
+        for (const auto &item : qmagicenum::enumNames<T>())
+        {
+            combo->addItem(item.toString());
+        }
+        // TODO: this can probably use some other size hint/size strategy
+        combo->setMinimumWidth(combo->minimumSizeHint().width());
+
+        widget->actionWidget = combo;
+        widget->label = lbl;
+
+        widget->hLayout->addWidget(lbl);
+        widget->hLayout->addStretch(1);
+        widget->hLayout->addWidget(combo);
+
+        setting.connect(
+            [&setting, combo](const QString &value) {
+                auto enumValue =
+                    qmagicenum::enumCast<T>(value, qmagicenum::CASE_INSENSITIVE)
+                        .value_or(setting.defaultValue);
+
+                auto i = magic_enum::enum_integer(enumValue);
+
+                combo->setCurrentIndex(i);
+            },
+            widget->managedConnections);
+
+        QObject::connect(
+            combo, &QComboBox::currentTextChanged,
+            [&setting](const auto &newText) {
+                // The setter for EnumStringSetting does not check that this value is valid
+                // Instead, it's up to the getters to make sure that the setting is legic - see the enum_cast above
+                // You could also use the settings `getEnum` function
+                setting = newText;
+            });
+
+        return widget;
+    }
+
+    SettingWidget *setTooltip(QString tooltip);
+    SettingWidget *setDescription(const QString &text);
+
+    /// Add extra keywords to the widget
+    ///
+    /// All text from the tooltip, description, and label are already keywords
+    SettingWidget *addKeywords(const QStringList &newKeywords);
+
+    void addTo(GeneralPageView &view);
+
+private:
+    QWidget *label = nullptr;
+    QWidget *actionWidget = nullptr;
+
+    QVBoxLayout *vLayout;
+    QHBoxLayout *hLayout;
+
+    pajlada::Signals::SignalHolder managedConnections;
+
+    QStringList keywords;
+};
+
+}  // namespace chatterino