USBDevicePicker: Modify USBDeviceAddToWhitelistDialog to be more generic, and use it for a new "More Options..." selection in Bluetooth Passthrough adapters

Source/Core/DolphinQt/Settings/USBDevicePicker.h

@@ -0,0 +1,61 @@
+// Copyright 2017 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <optional>
+#include <vector>
+
+#include <QDialog>
+
+#include "Core/USBUtils.h"
+
+class QTimer;
+class QDialog;
+class QHeaderView;
+class QLabel;
+class QLineEdit;
+class QDialogButtonBox;
+class QVBoxLayout;
+class QHBoxLayout;
+class QListView;
+class QPushButton;
+class QListWidget;
+class QPushButton;
+class QErrorMessage;
+class QMessageBox;
+
+class USBDevicePicker final : public QDialog
+{
+  Q_OBJECT
+public:
+  using FilterFunctionType = std::function<bool(const USBUtils::DeviceInfo&)>;
+  explicit USBDevicePicker(QWidget* parent, FilterFunctionType filter);
+
+  static std::optional<USBUtils::DeviceInfo> Run(
+      QWidget* parent, const QString& title,
+      const FilterFunctionType filter = [](const USBUtils::DeviceInfo&) { return true; });
+
+private:
+  static constexpr int DEVICE_REFRESH_INTERVAL_MS = 100;
+  QTimer* m_refresh_devices_timer;
+  QDialogButtonBox* m_picker_buttonbox;
+  QVBoxLayout* main_layout;
+  QLabel* enter_device_id_label;
+  QHBoxLayout* entry_hbox_layout;
+  QLineEdit* device_vid_textbox;
+  QLineEdit* device_pid_textbox;
+  QLabel* select_label;
+  QListWidget* usb_inserted_devices_list;
+
+  FilterFunctionType m_filter;
+
+  std::optional<USBUtils::DeviceInfo> GetSelectedDevice() const;
+
+  void InitControls();
+  void RefreshDeviceList();
+
+  void OnDeviceSelection();
+
+  std::vector<USBUtils::DeviceInfo> m_shown_devices;
+};