PowerToys/src/modules/previewpane/powerpreview/settings.cpp

#include "pch.h"
#include <common.h>
#include "settings.h"
#include "trace.h"
#include <iostream>
#include <atlstr.h>

using namespace std;

namespace PowerPreviewSettings
{
    extern "C" IMAGE_DOS_HEADER __ImageBase;

    // Base Settings Class Implementation
    FileExplorerPreviewSettings::FileExplorerPreviewSettings(bool toggleSettingEnabled, const std::wstring& toggleSettingName, const std::wstring& toggleSettingDescription, LPCWSTR clsid, const std::wstring& registryValueData, RegistryWrapperIface* registryWrapper) :
        m_toggleSettingEnabled(toggleSettingEnabled),
        m_toggleSettingName(toggleSettingName),
        m_toggleSettingDescription(toggleSettingDescription),
        m_clsid(clsid),
        m_registryValueData(registryValueData),
        m_registryWrapper(registryWrapper)
    {
    }

    FileExplorerPreviewSettings::~FileExplorerPreviewSettings()
    {
        if (this->m_registryWrapper != NULL)
        {
            delete this->m_registryWrapper;
        }
    }

    bool FileExplorerPreviewSettings::GetToggleSettingState() const
    {
        return this->m_toggleSettingEnabled;
    }

    void FileExplorerPreviewSettings::UpdateToggleSettingState(bool state)
    {
        this->m_toggleSettingEnabled = state;
    }

    std::wstring FileExplorerPreviewSettings::GetToggleSettingName() const
    {
        return this->m_toggleSettingName;
    }

    std::wstring FileExplorerPreviewSettings::GetToggleSettingDescription() const
    {
        return this->m_toggleSettingDescription;
    }

    LPCWSTR FileExplorerPreviewSettings::GetCLSID() const
    {
        return this->m_clsid;
    }

    std::wstring FileExplorerPreviewSettings::GetRegistryValueData() const
    {
        return this->m_registryValueData;
    }

    // Load initial state of the file explorer module. If no inital state present initialize setting with default value.
    void FileExplorerPreviewSettings::LoadState(PowerToysSettings::PowerToyValues& settings)
    {
        auto toggle = settings.get_bool_value(this->GetToggleSettingName());
        if (toggle)
        {
            // If no existing setting found leave the default initialization value.
            this->UpdateToggleSettingState(*toggle);
        }
    }

    // Manage change in state of file explorer module settings.
    bool FileExplorerPreviewSettings::UpdateState(PowerToysSettings::PowerToyValues& settings, bool enabled, bool isElevated)
    {
        auto toggle = settings.get_bool_value(this->GetToggleSettingName());
        if (toggle)
        {
            auto lastState = this->GetToggleSettingState();
            auto newState = *toggle;
            if (lastState != newState)
            {
                this->UpdateToggleSettingState(newState);

                // If global setting is enable. Add or remove the file explorer module otherwise just change the UI and save the updated config.
                if (enabled)
                {
                    // Check if the registry state does not match the new state, registry needs to be modified
                    if (this->CheckRegistryState() != newState)
                    {
                        if (isElevated)
                        {
                            LONG err;
                            if (lastState)
                            {
                                err = this->Disable();
                            }
                            else
                            {
                                err = this->Enable();
                            }

                            if (err == ERROR_SUCCESS)
                            {
                                Trace::PowerPreviewSettingsUpdated(this->GetToggleSettingName().c_str(), lastState, newState, enabled);
                            }
                            else
                            {
                                Trace::PowerPreviewSettingsUpdateFailed(this->GetToggleSettingName().c_str(), lastState, newState, enabled);
                            }
                        }
                        // If process is not elevated, return false as it is not possible to update the registry
                        else
                        {
                            return false;
                        }
                    }
                    // If it matches the new state, no update to registry is required
                }
                else
                {
                    Trace::PowerPreviewSettingsUpdated(this->GetToggleSettingName().c_str(), lastState, newState, enabled);
                }
            }
        }

        return true;
    }
}