Release 3.8.2.12: export/import full server list as JSON.

Save and replace profiles via system file dialog; buttons after Best; prefs unchanged on import.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/filedialog/filedialog_windows.go

@@ -0,0 +1,139 @@
+//go:build windows
+
+package filedialog
+
+import (
+	"path/filepath"
+	"strings"
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var (
+	comdlg32           = windows.NewLazySystemDLL("comdlg32.dll")
+	procGetOpenFileName = comdlg32.NewProc("GetOpenFileNameW")
+	procGetSaveFileName = comdlg32.NewProc("GetSaveFileNameW")
+)
+
+const (
+	ofnExplorer        = 0x00080000
+	ofnFileMustExist   = 0x00001000
+	ofnPathMustExist   = 0x00000800
+	ofnOverwritePrompt = 0x00000002
+	ofnHideReadOnly    = 0x00000004
+	maxPath            = 32768
+)
+
+type openFileNameW struct {
+	LStructSize       uint32
+	HwndOwner         windows.HWND
+	HInstance         windows.Handle
+	LpstrFilter       *uint16
+	LpstrCustomFilter *uint16
+	NMaxCustFilter    uint32
+	NFilterIndex      uint32
+	LpstrFile         *uint16
+	NMaxFile          uint32
+	LpstrFileTitle    *uint16
+	NMaxFileTitle     uint32
+	LpstrInitialDir   *uint16
+	LpstrTitle        *uint16
+	Flags             uint32
+	NFileOffset       uint16
+	NFileExtension    uint16
+	LpstrDefExt       *uint16
+	LCustData         uintptr
+	LpfnHook          uintptr
+	LpTemplateName    *uint16
+	PvReserved        unsafe.Pointer
+	DwReserved        uint32
+	FlagsEx           uint32
+}
+
+func jsonFilter() *uint16 {
+	// Double-null terminated pairs: label\0pattern\0label\0pattern\0\0
+	s := "JSON (*.json)\x00*.json\x00All files\x00*.*\x00"
+	return &utf16FromString(s)[0]
+}
+
+func utf16FromString(s string) []uint16 {
+	u, err := syscall.UTF16FromString(s)
+	if err != nil {
+		return []uint16{0}
+	}
+	return u
+}
+
+func ensureJSONExt(path string) string {
+	if strings.EqualFold(filepath.Ext(path), ".json") {
+		return path
+	}
+	return path + ".json"
+}
+
+// SaveJSON shows a Save As dialog for a .json file.
+func SaveJSON(title, defaultName string) (string, error) {
+	if title == "" {
+		title = "Сохранить список серверов"
+	}
+	if defaultName == "" {
+		defaultName = "navis-servers.json"
+	}
+	buf := make([]uint16, maxPath)
+	copy(buf, utf16FromString(defaultName))
+
+	filter := jsonFilter()
+	titlePtr, _ := syscall.UTF16PtrFromString(title)
+	defExt, _ := syscall.UTF16PtrFromString("json")
+
+	ofn := openFileNameW{
+		LStructSize:  uint32(unsafe.Sizeof(openFileNameW{})),
+		LpstrFilter:  filter,
+		NFilterIndex: 1,
+		LpstrFile:    &buf[0],
+		NMaxFile:     uint32(len(buf)),
+		LpstrTitle:   titlePtr,
+		Flags:        ofnExplorer | ofnPathMustExist | ofnOverwritePrompt | ofnHideReadOnly,
+		LpstrDefExt:  defExt,
+	}
+	r, _, _ := procGetSaveFileName.Call(uintptr(unsafe.Pointer(&ofn)))
+	if r == 0 {
+		return "", ErrCanceled
+	}
+	path := windows.UTF16ToString(buf)
+	if path == "" {
+		return "", ErrCanceled
+	}
+	return ensureJSONExt(path), nil
+}
+
+// OpenJSON shows an Open dialog for a .json file.
+func OpenJSON(title string) (string, error) {
+	if title == "" {
+		title = "Загрузить список серверов"
+	}
+	buf := make([]uint16, maxPath)
+	filter := jsonFilter()
+	titlePtr, _ := syscall.UTF16PtrFromString(title)
+
+	ofn := openFileNameW{
+		LStructSize:  uint32(unsafe.Sizeof(openFileNameW{})),
+		LpstrFilter:  filter,
+		NFilterIndex: 1,
+		LpstrFile:    &buf[0],
+		NMaxFile:     uint32(len(buf)),
+		LpstrTitle:   titlePtr,
+		Flags:        ofnExplorer | ofnFileMustExist | ofnPathMustExist | ofnHideReadOnly,
+	}
+	r, _, _ := procGetOpenFileName.Call(uintptr(unsafe.Pointer(&ofn)))
+	if r == 0 {
+		return "", ErrCanceled
+	}
+	path := windows.UTF16ToString(buf)
+	if path == "" {
+		return "", ErrCanceled
+	}
+	return path, nil
+}