ImGuiDiskManipulator.cc

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#include "ImGuiDiskManipulator.hh"
 
#include "CustomFont.h"
#include "ImGuiCpp.hh"
#include "ImGuiManager.hh"
#include "ImGuiMedia.hh"
#include "ImGuiOpenFile.hh"
#include "ImGuiUtils.hh"
 
#include "DiskChanger.hh"
#include "DiskImageUtils.hh"
#include "DiskManipulator.hh"
#include "DiskName.hh"
#include "FileOperations.hh"
#include "HD.hh"
#include "MSXtar.hh"
 
#include "Date.hh"
#include "foreach_file.hh"
#include "hash_set.hh"
#include "one_of.hh"
#include "stl.hh"
#include "unreachable.hh"
#include "view.hh"
#include "xxhash.hh"
 
#include <imgui_stdlib.h>
 
#include <algorithm>
#include <cassert>
 
namespace openmsx {
 
using namespace std::literals;
 
DiskContainer* ImGuiDiskManipulator::getDrive()
{
        const auto& diskManipulator = manager.getReactor().getDiskManipulator();
        return diskManipulator.getDrive(selectedDrive);
}
 
std::optional<DiskManipulator::DriveAndPartition> ImGuiDiskManipulator::getDriveAndDisk()
{
        const auto& diskManipulator = manager.getReactor().getDiskManipulator();
        return diskManipulator.getDriveAndDisk(selectedDrive);
}
 
std::optional<ImGuiDiskManipulator::DrivePartitionTar> ImGuiDiskManipulator::getMsxStuff()
{
        auto dd = getDriveAndDisk();
        if (!dd) return {};
        auto& [drive, disk] = *dd;
        try {
                auto tar = std::make_unique<MSXtar>(*disk, manager.getReactor().getMsxChar2Unicode());
                return DrivePartitionTar{drive, std::move(disk), std::move(tar)};
        } catch (MSXException&) {
                // e.g. triggers when trying to parse a partition table as a FAT-disk
                return {};
        }
}
 
bool ImGuiDiskManipulator::isValidMsxDirectory(DrivePartitionTar& stuff, const std::string& dir) const
{
        assert(dir.starts_with('/'));
        try {
                stuff.tar->chdir(dir);
                return true;
        } catch (MSXException&) {
                return false;
        }
}
 
std::vector<ImGuiDiskManipulator::FileInfo> ImGuiDiskManipulator::dirMSX(DrivePartitionTar& stuff)
{
        std::vector<FileInfo> result;
        // most likely nothing changed, and then we have the same number of entries
        result.reserve(msxFileCache.size());
 
        try {
                stuff.tar->chdir(msxDir);
        } catch (MSXException&) {
                msxDir = "/";
                editMsxDir = "/";
                stuff.tar->chdir(msxDir);
        }
 
        auto dir = stuff.tar->dirRaw();
        auto num = dir.size();
        for (unsigned i = 0; i < num; ++i) {
                auto entry = dir.getListIndexUnchecked(i);
                FileInfo info;
                info.attrib = MSXDirEntry::AttribValue(uint8_t(entry.getListIndexUnchecked(1).getOptionalInt().value_or(0)));
                if (info.attrib & MSXDirEntry::Attrib::VOLUME) continue; // skip
                info.filename = std::string(entry.getListIndexUnchecked(0).getString());
                if (info.filename == one_of(".", "..")) continue; // skip
                info.modified = entry.getListIndexUnchecked(2).getOptionalInt().value_or(0);
                info.size = entry.getListIndexUnchecked(3).getOptionalInt().value_or(0);
                info.isDirectory = bool(info.attrib & MSXDirEntry::Attrib::DIRECTORY);
                if (info.isDirectory) info.size = size_t(-1);
                result.push_back(std::move(info));
        }
 
        return result;
}
 
void ImGuiDiskManipulator::refreshMsx(DrivePartitionTar& stuff)
{
        auto newFiles = dirMSX(stuff);
        if (newFiles.size() != msxFileCache.size()) msxLastClick = -1;
 
        // copy 'isSelected' from 'msxFileCache' to 'newFiles'
        hash_set<std::string_view, std::identity, XXHasher> selected;
        for (const auto& oldFile : msxFileCache) {
                if (oldFile.isSelected) selected.insert(oldFile.filename);
        }
        if (!selected.empty()) {
                for (auto& newFile : newFiles) {
                        if (selected.contains(newFile.filename)) newFile.isSelected = true;
                }
        }
 
        std::swap(newFiles, msxFileCache);
}
 
void ImGuiDiskManipulator::refreshHost()
{
        if (hostDir.empty() || !FileOperations::isDirectory(hostDir)) {
                hostDir = FileOperations::getCurrentWorkingDirectory();
                editHostDir = hostDir;
        }
 
        hostFileCache.clear();
        auto fileAction = [&](const std::string& /*fullPath*/, std::string_view filename, const FileOperations::Stat& st) {
                FileInfo info;
                info.filename = std::string{filename};
                info.size = st.st_size;
                info.modified = st.st_mtime;
                info.isDirectory = false;
                hostFileCache.push_back(std::move(info));
        };
        auto directoryAction = [&](const std::string& /*fullPath*/, std::string_view filename, const FileOperations::Stat& st) {
                FileInfo info;
                info.filename = std::string{filename};
                info.size = size_t(-1); // not shown, but used for sorting
                info.modified = st.st_mtime;
                info.isDirectory = true;
                hostFileCache.push_back(std::move(info));
        };
        foreach_file_and_directory(hostDir, fileAction, directoryAction);
 
        hostLastClick = -1;
        hostNeedRefresh = false;
        hostForceSort = true;
}
 
void ImGuiDiskManipulator::checkSort(std::vector<FileInfo>& files, bool& forceSort) const
{
        auto* sortSpecs = ImGui::TableGetSortSpecs();
        if (!forceSort && !sortSpecs->SpecsDirty) return;
 
        forceSort = false;
        sortSpecs->SpecsDirty = false;
        assert(sortSpecs->SpecsCount == 1);
        assert(sortSpecs->Specs);
        assert(sortSpecs->Specs->SortOrder == 0);
 
        switch (sortSpecs->Specs->ColumnIndex) {
        case 0: // filename
                sortUpDown_String(files, sortSpecs, &FileInfo::filename);
                break;
        case 1: // size
                sortUpDown_T(files, sortSpecs, &FileInfo::size);
                break;
        case 2: // modified
                sortUpDown_T(files, sortSpecs, &FileInfo::modified);
                break;
        case 3: // attrib
                sortUpDown_T(files, sortSpecs, &FileInfo::attrib);
                break;
        default:
                UNREACHABLE;
        }
}
 
ImGuiDiskManipulator::Action ImGuiDiskManipulator::drawTable(
        std::vector<FileInfo>& files, int& lastClickIdx, bool& forceSort, bool msxSide) const
{
        auto clearSelection = [&]{
                for (auto& file : files) file.isSelected = false;
        };
        auto selectRange = [&](size_t curr, size_t last) {
                assert(!files.empty());
                assert(curr < files.size());
                if (last >= files.size()) last = files.size() - 1;
 
                auto begin = std::min(curr, last);
                auto end   = std::max(curr, last);
                for (auto i = begin; i <= end; ++i) {
                        files[i].isSelected = true;
                }
        };
 
        checkSort(files, forceSort);
 
        Action result = Nop{};
        im::ListClipperID(files.size(), [&](int i) {
                auto& file = files[i];
                if (ImGui::TableNextColumn()) { // filename
                        auto pos = ImGui::GetCursorPos();
                        if (ImGui::Selectable("##row", file.isSelected, ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowOverlap | ImGuiSelectableFlags_AllowDoubleClick)) {
                                if (ImGui::IsMouseDoubleClicked(ImGuiMouseButton_Left)) {
                                        result = ChangeDir{file.filename};
                                } else {
                                        bool ctrl     = ImGui::IsKeyDown(ImGuiKey_LeftCtrl ) || ImGui::IsKeyDown(ImGuiKey_RightCtrl);
                                        bool shiftKey = ImGui::IsKeyDown(ImGuiKey_LeftShift) || ImGui::IsKeyDown(ImGuiKey_RightShift);
                                        bool shift = shiftKey && (lastClickIdx != -1);
                                        if (ctrl && shift) {
                                                selectRange(i, lastClickIdx);
                                        } else if (ctrl) {
                                                file.isSelected = !file.isSelected;
                                                lastClickIdx = i;
                                        } else if (shift) {
                                                clearSelection();
                                                selectRange(i, lastClickIdx);
                                        } else {
                                                clearSelection();
                                                file.isSelected = true;
                                                lastClickIdx = i;
                                        }
                                }
                        }
                        if (msxSide && ImGui::IsItemHovered() && ImGui::IsMouseReleased(ImGuiMouseButton_Right)) {
                                ImGui::OpenPopup("table-context");
                        }
                        im::Popup("table-context", [&]{
                                ImGui::TextUnformatted(file.isDirectory ? "Directory:" : "File:");
                                ImGui::SameLine();
                                ImGui::TextUnformatted(file.filename);
                                ImGui::Separator();
 
                                if (ImGui::Selectable("Delete")) {
                                        result = Delete{file.filename};
                                }
                                if (ImGui::Selectable("Rename ...")) {
                                        result = Rename{file.filename};
                                }
                        });
 
                        ImGui::SetCursorPos(pos);
 
                        ImGui::Text("%s %s",
                                file.isDirectory ? ICON_IGFD_FOLDER_OPEN : ICON_IGFD_FILE,
                                file.filename.c_str());
                }
                if (ImGui::TableNextColumn()) { // size
                        if (!file.isDirectory) {
                                ImGui::Text("%zu", file.size);
                        }
                }
                if (ImGui::TableNextColumn()) { // modified
                        ImGui::TextUnformatted(Date::toString(file.modified));
                }
                if (msxSide && ImGui::TableNextColumn()) { // attrib
                        ImGui::TextUnformatted(DiskImageUtils::formatAttrib(file.attrib));
                }
        });
        return result;
}
 
[[nodiscard]] static std::string driveDisplayName(std::string_view drive)
{
        if (drive == "virtual_drive") return "Virtual drive";
        std::string result;
        if (drive.size() >= 5 && drive.starts_with("disk")) {
                result = strCat("Disk drive ", char('A' + drive[4] - 'a'));
                drive.remove_prefix(5);
        } else if (drive.size() >= 3 && drive.starts_with("hd")) {
                result = strCat("Hard disk ", char('A' + drive[2] - 'a'));
                drive.remove_prefix(3);
        } else {
                return ""; // not supported
        }
        if (drive.empty()) return result; // Ok, no partition specified
        auto num = StringOp::stringToBase<10, unsigned>(drive);
        if (!num) return ""; // invalid format
        strAppend(result, ", partition ", *num);
        return result;
}
 
std::string ImGuiDiskManipulator::getDiskImageName()
{
        auto dd = getDriveAndDisk();
        if (!dd) return "";
        const auto& [drive, disk] = *dd;
        if (const auto* dr = dynamic_cast<const DiskChanger*>(drive)) {
                return dr->getDiskName().getResolved();
        } else if (const auto* hd = dynamic_cast<const HD*>(drive)) {
                return hd->getImageName().getResolved();
        } else {
                return "";
        }
}
 
void ImGuiDiskManipulator::paint(MSXMotherBoard* /*motherBoard*/)
{
        if (!show) return;
 
        auto stuff = getMsxStuff();
        if (stuff) {
                refreshMsx(*stuff);
        } else {
                msxFileCache.clear();
        }
        if (hostNeedRefresh) {
                refreshHost();
        }
 
        bool renameMsxEntry = false;
        bool createMsxDir = false;
        bool createHostDir = false;
        bool createDiskImage = false;
        bool openCheckTransfer = false;
 
        const auto& style = ImGui::GetStyle();
        ImGui::SetNextWindowSize(gl::vec2{70, 45} * ImGui::GetFontSize(), ImGuiCond_FirstUseEver);
        im::Window("Disk Manipulator", &show, [&]{
                auto availableSize = ImGui::GetContentRegionAvail();
                auto tSize = ImGui::CalcTextSize(">>"sv);
                auto bWidth = 2.0f * (style.ItemSpacing.x + style.FramePadding.x) + tSize.x;
                auto cWidth = (availableSize.x - bWidth) * 0.5f;
 
                bool writable = stuff && !stuff->disk->isWriteProtected();
 
                int tableFlags = ImGuiTableFlags_RowBg |
                                 ImGuiTableFlags_BordersV |
                                 ImGuiTableFlags_BordersOuter |
                                 ImGuiTableFlags_ScrollY |
                                 ImGuiTableFlags_Resizable |
                                 ImGuiTableFlags_Reorderable |
                                 ImGuiTableFlags_Hideable |
                                 ImGuiTableFlags_Sortable |
                                 ImGuiTableFlags_ContextMenuInBody |
                                 ImGuiTableFlags_ScrollX;
                im::Child("##msx", {cWidth, 0.0f}, [&]{
                        auto b2Width = 2.0f * style.ItemSpacing.x + 4.0f * style.FramePadding.x +
                                       ImGui::CalcTextSize(ICON_IGFD_ADD ICON_IGFD_FOLDER_OPEN).x;
                        ImGui::SetNextItemWidth(-b2Width);
                        bool driveOk = false;
                        im::Combo("##drive", driveDisplayName(selectedDrive).c_str(), [&]{
                                const auto& diskManipulator = manager.getReactor().getDiskManipulator();
                                for (auto drives = diskManipulator.getDriveNamesForCurrentMachine();
                                     const auto& drive : drives) {
                                        if (selectedDrive == drive) driveOk = true;
                                        auto display = driveDisplayName(drive);
                                        if (display.empty()) continue;
                                        if (ImGui::Selectable(display.c_str())) {
                                                selectedDrive = drive;
                                                driveOk = true;
                                        }
                                }
                                if (!driveOk) {
                                        selectedDrive = "virtual_drive";
                                }
                        });
                        simpleToolTip([&]{ return getDiskImageName(); });
                        ImGui::SameLine();
                        createDiskImage = ImGui::Button(ICON_IGFD_ADD"##NewDiskImage");
                        simpleToolTip("Create new disk image");
                        ImGui::SameLine();
                        im::Disabled(selectedDrive.starts_with("hd"), [&]{
                                if (ImGui::Button(ICON_IGFD_FOLDER_OPEN"##BrowseDiskImage")) insertMsxDisk();
                                simpleToolTip("Insert disk image");
                        });
 
                        if (ImGui::Button(ICON_IGFD_CHEVRON_UP"##msxDirUp")) msxParentDirectory();
                        simpleToolTip("Go to parent directory");
                        ImGui::SameLine();
                        im::Disabled(!writable, [&]{
                                createMsxDir = ImGui::Button(ICON_IGFD_ADD"##msxNewDir");
                                simpleToolTip("New MSX directory");
                        });
                        ImGui::SameLine();
                        ImGui::SetNextItemWidth(-FLT_MIN);
                        if (stuff) {
                                im::StyleColor(!isValidMsxDirectory(*stuff, editMsxDir), ImGuiCol_Text, getColor(imColor::ERROR), [&]{
                                        if (ImGui::InputText("##msxPath", &editMsxDir)) {
                                                if (!editMsxDir.starts_with('/')) {
                                                        editMsxDir = '/' + editMsxDir;
                                                }
                                                if (isValidMsxDirectory(*stuff, editMsxDir)) {
                                                        msxDir = editMsxDir;
                                                        msxRefresh();
                                                }
                                        }
                                });
                        } else {
                                im::Disabled(true, []{
                                        std::string noDisk = "No (valid) disk inserted";
                                        ImGui::InputText("##msxPath", &noDisk);
                                });
                        }
 
                        im::Table("##msxFiles", 4, tableFlags, {-FLT_MIN, -ImGui::GetFrameHeightWithSpacing()}, [&]{
                                ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
                                ImGui::TableSetupColumn("Filename", ImGuiTableColumnFlags_NoHide | ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_NoReorder);
                                ImGui::TableSetupColumn("Size");
                                ImGui::TableSetupColumn("Modified");
                                ImGui::TableSetupColumn("Attrib", ImGuiTableColumnFlags_DefaultHide);
                                ImGui::TableHeadersRow();
                                bool msxForceSort = true; // always sort
                                auto action = drawTable(msxFileCache, msxLastClick, msxForceSort, true);
                                std::visit(overloaded {
                                        [](Nop) { /* nothing */},
                                        [&](ChangeDir cd) {
                                                msxDir = FileOperations::join(msxDir, cd.name);
                                                msxRefresh();
                                        },
                                        [&](Delete d) {
                                                stuff->tar->deleteItem(d.name);
                                                msxRefresh();
                                        },
                                        [&](Rename r) {
                                                renameFrom = r.name;
                                                renameMsxEntry = true;
                                        }
                                }, action);
                        });
 
                        im::Disabled(!stuff, [&]{
                                if (ImGui::Button("Export to new disk image")) exportDiskImage();
                                simpleToolTip("Save the content of the drive to a new disk image");
                        });
                        ImGui::SameLine();
                        if (stuff) {
                                auto [num, size] = stuff->tar->getFreeSpace();
                                auto free = (size_t(num) * size) / 1024; // in kB
                                auto status = strCat(free, "kB free");
                                if (!writable) strAppend(status, ", read-only");
                                ImGui::TextUnformatted(status);
                        } else {
                                ImGui::TextUnformatted("No (valid) disk inserted"sv);
                        }
                });
 
                ImGui::SameLine();
                auto pos1 = ImGui::GetCursorPos();
                auto b2Height = ImGui::GetFrameHeightWithSpacing() + ImGui::GetFrameHeight();
                auto byPos = (availableSize.y - b2Height) * 0.5f;
                im::Group([&]{
                        ImGui::Dummy({0.0f, byPos});
                        im::Disabled(!writable || ranges::none_of(hostFileCache, &FileInfo::isSelected), [&]{
                                if (ImGui::Button("<<")) {
                                        if (setupTransferHostToMsx(*stuff)) {
                                                openCheckTransfer = true;
                                        }
                                }
                                simpleToolTip("Transfer files or directories from host to MSX");
                        });
                        im::Disabled(!stuff || ranges::none_of(msxFileCache, &FileInfo::isSelected), [&]{
                                if (ImGui::Button(">>")) transferMsxToHost(*stuff);
                                simpleToolTip("Transfer files or directories from MSX to host");
                        });
                });
                ImGui::SameLine();
                ImGui::SetCursorPosY(pos1.y);
 
                im::Child("##host", {cWidth, 0.0f}, [&]{
                        if (ImGui::Button(ICON_IGFD_CHEVRON_UP"##hostDirUp")) hostParentDirectory();
                        simpleToolTip("Go to parent directory");
                        ImGui::SameLine();
                        if (ImGui::Button(ICON_IGFD_REFRESH"##hostRefresh")) hostRefresh();
                        simpleToolTip("Refresh directory listing");
                        ImGui::SameLine();
                        createHostDir = ImGui::Button(ICON_IGFD_ADD"##hostNewDir");
                        simpleToolTip("New host directory");
                        ImGui::SameLine();
                        ImGui::SetNextItemWidth(-FLT_MIN);
                        im::StyleColor(!FileOperations::isDirectory(editHostDir), ImGuiCol_Text, getColor(imColor::ERROR), [&]{
                                if (ImGui::InputText("##hostPath", &editHostDir)) {
                                        if (FileOperations::isDirectory(editHostDir)) {
                                                hostDir = editHostDir;
                                                hostRefresh();
                                        }
                                }
                        });
 
                        im::Table("##hostFiles", 3, tableFlags, {-FLT_MIN, -FLT_MIN}, [&]{
                                ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
                                ImGui::TableSetupColumn("Filename", ImGuiTableColumnFlags_NoHide | ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_NoReorder);
                                ImGui::TableSetupColumn("Size");
                                ImGui::TableSetupColumn("Modified");
                                ImGui::TableHeadersRow();
                                auto action = drawTable(hostFileCache, hostLastClick, hostForceSort, false);
                                std::visit(overloaded {
                                        [](Nop) { /* nothing */},
                                        [&](ChangeDir cd) {
                                                hostDir = FileOperations::join(hostDir, cd.name);
                                                hostRefresh();
                                        },
                                        [](Delete) { assert(false); },
                                        [](Rename) { assert(false); }
                                }, action);
                        });
                });
 
                const char* const renameTitle = "Rename";
                if (renameMsxEntry) {
                        editModal.clear();
                        ImGui::OpenPopup(renameTitle);
                }
                im::PopupModal(renameTitle, nullptr, ImGuiWindowFlags_AlwaysAutoResize, [&]{
                        bool close = false;
                        ImGui::TextUnformatted("from:"sv);
                        ImGui::SameLine();
                        ImGui::TextUnformatted(renameFrom);
                        ImGui::Text("to:");
                        ImGui::SameLine();
                        bool ok = ImGui::InputText("##newName", &editModal, ImGuiInputTextFlags_EnterReturnsTrue);
                        ok |= ImGui::Button("Ok");
                        if (ok) {
                                if (stuff) {
                                        std::string error;
                                        try {
                                                stuff->tar->chdir(msxDir);
                                                error = stuff->tar->renameItem(renameFrom, editModal);
                                        } catch (MSXException& e) {
                                                error = e.getMessage();
                                        }
                                        if (!error.empty()) {
                                                manager.printError("Couldn't rename ", renameFrom,
                                                                " to ", editModal, ": ", error);
                                        }
                                }
                                msxRefresh();
                                close = true;
                        }
                        ImGui::SameLine();
                        close |= ImGui::Button("Cancel");
                        if (close) ImGui::CloseCurrentPopup();
                });
 
                const char* const overwriteTitle = "Confirm overwrite?";
                if (openCheckTransfer) {
                        ImGui::OpenPopup(overwriteTitle);
                }
                bool p_open = true;
                im::PopupModal(overwriteTitle, &p_open, ImGuiWindowFlags_AlwaysAutoResize, [&]{
                        auto printList = [](const char* label, const std::vector<FileInfo>& list) {
                                float count = std::min(4.5f, narrow_cast<float>(list.size()));
                                float height = count * ImGui::GetTextLineHeightWithSpacing();
                                im::ListBox(label, {0.0f, height}, [&]{
                                        for (const auto& f : list) {
                                                ImGui::TextUnformatted(f.filename);
                                        }
                                });
                        };
                        if (!existingFiles.empty()) {
                                ImGui::TextUnformatted("These files already exist and will be overwritten"sv);
                                printList("##files", existingFiles);
                        }
                        if (!existingDirs.empty()) {
                                ImGui::TextUnformatted("These directories already exist and will be overwritten"sv);
                                printList("##dirs", existingDirs);
                        }
                        if (!duplicateEntries.empty()) {
                                ImGui::TextUnformatted("These host entries will map to the same MSX entry"sv);
                                im::ListBox("##duplicates", {0.0f, 4.5f * ImGui::GetTextLineHeightWithSpacing()}, [&]{
                                        for (const auto& [msxName, hostEntries] : duplicateEntries) {
                                                ImGui::Text("%s:", msxName.c_str());
                                                for (const auto& host : hostEntries) {
                                                        ImGui::Text("    %s", host.filename.c_str());
                                                }
                                        }
                                });
                        }
                        ImGui::Separator();
 
                        if (!p_open) {
                                transferHostToMsxPhase = IDLE;
                        }
                        if (ImGui::Button("Preserve")) {
                                transferHostToMsxPhase = EXECUTE_PRESERVE;
                                p_open = false;
                        }
                        simpleToolTip("Do not overwrite MSX files");
                        ImGui::SameLine();
                        if (ImGui::Button("Overwrite")) {
                                transferHostToMsxPhase = EXECUTE_OVERWRITE;
                                p_open = false;
                        }
                        simpleToolTip("Overwrite MSX files");
                        ImGui::SameLine();
                        if (ImGui::Button("Cancel")) {
                                transferHostToMsxPhase = IDLE;
                                p_open = false;
                        }
                        simpleToolTip("Abort transfer");
 
                        if (!p_open) {
                                ImGui::CloseCurrentPopup();
                                if (stuff && transferHostToMsxPhase != IDLE) {
                                        executeTransferHostToMsx(*stuff);
                                }
                        }
                });
 
                const char* const newMsxDirTitle = "Create new MSX directory";
                if (createMsxDir) {
                        editModal.clear();
                        ImGui::OpenPopup(newMsxDirTitle);
                }
                p_open = true;
                im::PopupModal(newMsxDirTitle, &p_open, ImGuiWindowFlags_AlwaysAutoResize, [&]{
                        ImGui::TextUnformatted("Create new directory in:"sv);
                        ImGui::TextUnformatted(driveDisplayName(selectedDrive));
                        ImGui::TextUnformatted(msxDir);
                        bool close = false;
                        bool ok = ImGui::InputText("##msxPath", &editModal, ImGuiInputTextFlags_EnterReturnsTrue);
                        ok |= ImGui::Button("Ok");
                        if (ok) {
                                if (stuff) {
                                        try {
                                                stuff->tar->chdir(msxDir);
                                                stuff->tar->mkdir(editModal);
                                        } catch (MSXException& e) {
                                                manager.printError(
                                                        "Couldn't create new MSX directory: ", e.getMessage());
                                        }
                                }
 
                                msxRefresh();
                                close = true;
                        }
                        ImGui::SameLine();
                        close |= ImGui::Button("Cancel");
                        if (close) ImGui::CloseCurrentPopup();
                });
 
                const char* const newHostDirTitle = "Create new host directory";
                if (createHostDir) {
                        editModal.clear();
                        ImGui::OpenPopup(newHostDirTitle);
                }
                p_open = true;
                im::PopupModal(newHostDirTitle, &p_open, ImGuiWindowFlags_AlwaysAutoResize, [&]{
                        ImGui::TextUnformatted("Create new directory in:"sv);
                        ImGui::TextUnformatted(hostDir);
                        bool close = false;
                        bool ok = ImGui::InputText("##hostPath", &editModal, ImGuiInputTextFlags_EnterReturnsTrue);
                        ok |= ImGui::Button("Ok");
                        if (ok) {
                                FileOperations::mkdirp(FileOperations::join(hostDir, editModal));
                                hostRefresh();
                                close = true;
                        }
                        ImGui::SameLine();
                        close |= ImGui::Button("Cancel");
                        if (close) ImGui::CloseCurrentPopup();
                });
 
                const char* const newDiskImageTitle = "Create new disk image";
                if (createDiskImage) {
                        auto current = getDiskImageName();
                        auto cwd = current.empty() ? FileOperations::getCurrentWorkingDirectory()
                                                : std::string(FileOperations::getDirName(current));
                        auto newName = FileOperations::getNextNumberedFileName(cwd, "new-image", ".dsk");
                        editModal = FileOperations::join(cwd, newName);
 
                        newDiskType = UNPARTITIONED;
                        bootType = static_cast<int>(MSXBootSectorType::DOS2);
                        unpartitionedSize = {720, PartitionSize::KB};
                        partitionSizes.assign(3, {32, PartitionSize::MB});
                        ImGui::OpenPopup(newDiskImageTitle);
                }
                ImGui::SetNextWindowSize(gl::vec2{30, 22} * ImGui::GetFontSize(), ImGuiCond_FirstUseEver);
                p_open = true;
                im::PopupModal(newDiskImageTitle, &p_open, [&]{
                        bool close = false;
 
                        auto buttonWidth = style.ItemSpacing.x + 2.0f * style.FramePadding.x +
                                           ImGui::CalcTextSize(ICON_IGFD_FOLDER_OPEN).x;
                        ImGui::SetNextItemWidth(-buttonWidth);
                        ImGui::InputText("##newDiskPath", &editModal);
                        simpleToolTip("Filename for new disk image");
                        ImGui::SameLine();
                        if (ImGui::Button(ICON_IGFD_FOLDER_OPEN"##BrowseNewImage")) {
                                manager.openFile->selectNewFile(
                                        "Filename for new disk image",
                                        "Disk image (*.dsk){.dsk}", // only .dsk (not all other disk extensions)
                                        [&](const auto& fn) { editModal = fn; },
                                        getDiskImageName(),
                                        ImGuiOpenFile::Painter::DISKMANIPULATOR);
                        }
                        simpleToolTip("Select new file");
                        if (manager.openFile->mustPaint(ImGuiOpenFile::Painter::DISKMANIPULATOR)) {
                                manager.openFile->doPaint();
                        }
 
                        ImGui::SetNextItemWidth(ImGui::GetFontSize() * 6.0f);
                        ImGui::Combo("type", &bootType, "DOS 1\0DOS 2\0Nextor\0", 3); // in sync with MSXBootSectorType enum
                        ImGui::Separator();
 
                        ImGui::RadioButton("No partitions (floppy disk)", &newDiskType, UNPARTITIONED);
                        im::DisabledIndent(newDiskType != UNPARTITIONED, [&]{
                                ImGui::SetNextItemWidth(ImGui::GetFontSize() * 5.0f);
                                ImGui::InputScalar("##count", ImGuiDataType_U32, &unpartitionedSize.count);
                                ImGui::SameLine();
                                ImGui::SetNextItemWidth(ImGui::GetFontSize() * 3.5f);
                                ImGui::Combo("##unit", &unpartitionedSize.unit, "kB\0MB\0", 2);
                        });
 
                        ImGui::RadioButton("Partitioned HD image", &newDiskType, PARTITIONED);
                        im::DisabledIndent(newDiskType != PARTITIONED, [&]{
                                float bottomHeight = 2.0f * style.ItemSpacing.y + 1.0f + 2.0f * style.FramePadding.y + ImGui::GetTextLineHeight();
                                im::ListBox("##partitions", {14 * ImGui::GetFontSize(), -bottomHeight}, [&]{
                                        im::ID_for_range(partitionSizes.size(), [&](int i) {
                                                ImGui::AlignTextToFramePadding();
                                                ImGui::Text("%2d:", i + 1);
                                                ImGui::SameLine();
                                                ImGui::SetNextItemWidth(ImGui::GetFontSize() * 5.0f);
                                                ImGui::InputScalar("##count", ImGuiDataType_U32, &partitionSizes[i].count);
                                                ImGui::SameLine();
                                                ImGui::SetNextItemWidth(ImGui::GetFontSize() * 3.5f);
                                                ImGui::Combo("##unit", &partitionSizes[i].unit, "kB\0MB\0", 2);
                                        });
                                });
                                ImGui::SameLine();
                                im::Group([&]{
                                        im::Disabled(partitionSizes.size() >= 31, [&]{
                                                if (ImGui::Button("Add")) {
                                                        partitionSizes.push_back({32, PartitionSize::MB});
                                                }
                                        });
                                        im::Disabled(partitionSizes.size() <= 1, [&]{
                                                if (ImGui::Button("Remove")) {
                                                        partitionSizes.pop_back();
                                                }
                                        });
                                });
                        });
 
                        ImGui::Separator();
                        im::Disabled(editModal.empty(), [&]{
                                if (ImGui::Button("Ok")) {
                                        const auto& diskManipulator = manager.getReactor().getDiskManipulator();
                                        auto sizes = [&]{
                                                if (newDiskType == UNPARTITIONED) {
                                                        return std::vector<unsigned>(1, unpartitionedSize.asSectorCount());
                                                } else {
                                                        return to_vector(view::transform(partitionSizes, &PartitionSize::asSectorCount));
                                                }
                                        }();
                                        try {
                                                diskManipulator.create(editModal, static_cast<MSXBootSectorType>(bootType), sizes);
                                                if (auto* drive = getDrive()) {
                                                        drive->insertDisk(editModal); // might fail (return code), but ignore
                                                        msxRefresh();
                                                }
                                        } catch (MSXException& e) {
                                                manager.printError(
                                                        "Couldn't create disk image: ", e.getMessage());
                                        }
                                        close = true;
                                }
                        });
                        ImGui::SameLine();
                        close |= ImGui::Button("Cancel");
                        if (close) ImGui::CloseCurrentPopup();
                });
        });
}
 
void ImGuiDiskManipulator::insertMsxDisk()
{
        if (selectedDrive.starts_with("hd")) {
                // disallow changing HD image
                return;
        }
        manager.openFile->selectFile(
                strCat("Select disk image for ", driveDisplayName(selectedDrive)),
                ImGuiMedia::diskFilter(),
                [&](const auto& fn) {
                        auto* drive = getDrive();
                        if (!drive) return;
                        drive->insertDisk(fn); // might fail (return code), but ignore
                        msxRefresh();
                },
                getDiskImageName());
}
 
void ImGuiDiskManipulator::exportDiskImage()
{
        manager.openFile->selectNewFile(
                strCat("Export ", driveDisplayName(selectedDrive), " to new disk image"),
                "Disk image (*.dsk){.dsk}", // only .dsk (not all other disk extensions)
                [&](const auto& fn) {
                        auto dd = getDriveAndDisk();
                        if (!dd) return;
                        const auto& [drive, disk] = *dd;
                        assert(disk);
 
                        try {
                                SectorBuffer buf;
                                File file(fn, File::OpenMode::CREATE);
                                for (auto i : xrange(disk->getNbSectors())) {
                                        disk->readSector(i, buf);
                                        file.write(buf.raw);
                                }
                        } catch (MSXException& e) {
                                manager.printError(
                                        "Couldn't export disk image: ", e.getMessage());
                        }
                },
                getDiskImageName());
}
 
void ImGuiDiskManipulator::msxParentDirectory()
{
        if (msxDir.ends_with('/')) msxDir.pop_back();
        msxDir = FileOperations::getDirName(msxDir);
        if (msxDir.empty()) msxDir.push_back('/');
        msxRefresh();
}
 
void ImGuiDiskManipulator::hostParentDirectory()
{
        if (hostDir.ends_with('/')) hostDir.pop_back();
        hostDir = FileOperations::getDirName(hostDir);
        if (hostDir.empty()) hostDir.push_back('/');
        hostRefresh();
}
 
void ImGuiDiskManipulator::msxRefresh()
{
        editMsxDir = msxDir;
        msxFileCache.clear();
}
 
void ImGuiDiskManipulator::hostRefresh()
{
        editHostDir = hostDir;
        hostNeedRefresh = true;
}
 
bool ImGuiDiskManipulator::setupTransferHostToMsx(DrivePartitionTar& stuff)
{
        try {
                stuff.tar->chdir(msxDir);
        } catch (MSXException&) {
                msxRefresh();
                return false;
        }
 
        existingDirs.clear();
        existingFiles.clear();
        duplicateEntries.clear();
        for (const auto& item : hostFileCache) {
                if (!item.isSelected) continue;
                auto msxName = stuff.tar->convertToMsxName(item.filename);
                duplicateEntries[msxName].push_back(item);
                auto it = ranges::find(msxFileCache, msxName, &FileInfo::filename);
                if (it == msxFileCache.end()) continue;
                (it->isDirectory ? existingDirs : existingFiles).push_back(*it);
        }
        std::erase_if(duplicateEntries, [](const auto& entry) { return entry.second.size() < 2; });
        if (existingDirs.empty() && existingFiles.empty() && duplicateEntries.empty()) {
                transferHostToMsxPhase = EXECUTE_PRESERVE;
                executeTransferHostToMsx(stuff);
                return false;
        } else {
                transferHostToMsxPhase = CHECK;
                return true; // open modal window
        }
}
 
void ImGuiDiskManipulator::executeTransferHostToMsx(DrivePartitionTar& stuff)
{
        transferHostToMsxPhase = IDLE;
        try {
                stuff.tar->chdir(msxDir);
        } catch (MSXException&) {
                msxRefresh();
                return;
        }
 
        for (const auto& item : hostFileCache) {
                if (!item.isSelected) continue;
                try {
                        auto add = (transferHostToMsxPhase == EXECUTE_PRESERVE)
                                 ? MSXtar::Add::PRESERVE : MSXtar::Add::OVERWRITE;
                        stuff.tar->addItem(FileOperations::join(hostDir, item.filename), add);
                } catch (MSXException& e) {
                        manager.printError("Couldn't import ", item.filename, ": ", e.getMessage());
                }
        }
        msxRefresh();
}
 
void ImGuiDiskManipulator::transferMsxToHost(DrivePartitionTar& stuff)
{
        try {
                stuff.tar->chdir(msxDir);
        } catch (MSXException&) {
                msxRefresh();
                return;
        }
        for (const auto& item : msxFileCache) {
                if (!item.isSelected) continue;
                try {
                        stuff.tar->getItemFromDir(hostDir, item.filename);
                } catch (MSXException& e) {
                        manager.printError("Couldn't extract ", item.filename, ": ", e.getMessage());
                }
        }
        hostRefresh();
}
 
} // namespace openmsx