feat: [sidebar/settings] custom settings can be added.

as title.
now you can add your custom setting item into setting pane, and you can
customize it's order.

Log: custom setting pane.

Task: https://pms.uniontech.com/task-view-286565.html?onlybody=yes

include/dfm-base/settingdialog/customsettingitemregister.h

@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef CUSTOMSETTINGITEMREGISTER_H
+#define CUSTOMSETTINGITEMREGISTER_H
+
+#include <QMap>
+#include <QPair>
+
+class QWidget;
+class QObject;
+
+typedef QPair<QWidget *, QWidget *> (*CustomSettingItemCreator)(QObject *);
+
+namespace dfmbase {
+class CustomSettingItemRegister
+{
+public:
+    static CustomSettingItemRegister *instance();
+    bool registCustomSettingItemType(const QString &type, const CustomSettingItemCreator &creator);
+    const QMap<QString, CustomSettingItemCreator> &getCreators() const;
+
+private:
+    CustomSettingItemRegister();
+    QMap<QString, CustomSettingItemCreator> creators;
+};
+}
+
+#endif   // CUSTOMSETTINGITEMREGISTER_H

include/dfm-base/settingdialog/settingjsongenerator.h

@@ -0,0 +1,72 @@
+// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef SETTINGJSONGENERATOR_H
+#define SETTINGJSONGENERATOR_H
+
+#include <QVariantMap>
+
+/*
+ * the root group:
+ * {
+ *      "groups": [(top level group)]
+ * }
+ *
+ * a top level group:
+ * {
+ *      "key": (string),
+ *      "name": (string),
+ *      "groups": [(config group)]
+ * }
+ *
+ * a config group:
+ * {
+ *      "key": (string),
+ *      "name": (string),
+ *      "options": [(config item)]
+ * }
+ *
+ * config item: // option item
+ * {
+ *      "key": (string),
+ *      "text": (string),
+ *      "type": (string),
+ *      "default": (variant),
+ *      "hide": (bool),
+ *      "custom_info": (variant)
+ * }
+ * */
+
+namespace dfmbase {
+
+class SettingJsonGenerator
+{
+public:
+    static SettingJsonGenerator *instance();
+
+    QByteArray genSettingJson();
+    bool addGroup(const QString &key, const QString &name);
+    bool addConfig(const QString &key, const QVariantMap &config);
+    bool addCheckBoxConfig(const QString &key, const QString &text, bool defaultVal = true);
+    bool addComboboxConfig(const QString &key, const QString &name, const QStringList &options, int defaultVal = 0);
+    bool addComboboxConfig(const QString &key, const QString &name, const QVariantMap &options, QVariant defaultVal = QVariant());
+
+protected:
+    SettingJsonGenerator();
+
+    void mergeGroups();
+    QJsonObject constructTopGroup(const QString &key);
+    QJsonObject constructConfigGroup(const QString &key);
+    QJsonObject constructConfig(const QString &key);
+
+private:
+    QMap<QString, QString> topGroups;
+    QMap<QString, QString> tmpTopGroups;
+    QMap<QString, QString> configGroups;
+    QMap<QString, QString> tmpConfigGroups;
+    QMap<QString, QVariantMap> configs;
+};
+
+}
+#endif   // SETTINGJSONGENERATOR_H

src/apps/dde-file-manager/main.cpp

@@ -88,14 +88,14 @@ static bool isLoadVaultPlugin()
     DSysInfo::UosEdition uosEdition = DSysInfo::uosEditionType();
     if (DSysInfo::UosServer == uosType) {
         if (DSysInfo::UosEnterprise == uosEdition
-                || DSysInfo::UosEnterpriseC == uosEdition
-                || DSysInfo::UosEuler == uosEdition) {
+            || DSysInfo::UosEnterpriseC == uosEdition
+            || DSysInfo::UosEuler == uosEdition) {
             return true;
         }
     } else if (DSysInfo::UosDesktop == uosType) {
         if (DSysInfo::UosProfessional == uosEdition
-                || static_cast<int>(DSysInfo::UosEnterprise) == static_cast<int>(uosEdition + 1)
-                || DSysInfo::UosEducation == uosEdition) {
+            || static_cast<int>(DSysInfo::UosEnterprise) == static_cast<int>(uosEdition + 1)
+            || DSysInfo::UosEducation == uosEdition) {
             return true;
         }
     }

src/dfm-base/base/configs/customsettingitemregister.cpp

@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "dfm-base/settingdialog/customsettingitemregister.h"
+
+#include <QDebug>
+
+using namespace dfmbase;
+
+CustomSettingItemRegister::CustomSettingItemRegister()
+{
+}
+
+const QMap<QString, CustomSettingItemCreator> &CustomSettingItemRegister::getCreators() const
+{
+    return creators;
+}
+
+CustomSettingItemRegister *CustomSettingItemRegister::instance()
+{
+    static CustomSettingItemRegister ins;
+    return &ins;
+}
+
+bool CustomSettingItemRegister::registCustomSettingItemType(const QString &type, const CustomSettingItemCreator &creator)
+{
+    if (creators.contains(type)) {
+        qWarning() << type << "is already registered...";
+        return false;
+    }
+    creators.insert(type, creator);
+    return true;
+}