feat: add cancellable settings path search

cmd/chub/main.go

@@ -3,12 +3,16 @@ package main
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"log/slog"
 	"os"
+	"path/filepath"
 	"strings"
 
+	"chub/internal/domain"
+	"chub/internal/platform/browser"
 	"chub/internal/platform/config"
 	"chub/internal/platform/logging"
 	"chub/internal/ui"
@@ -95,9 +99,36 @@ func writeCLIError(out io.Writer, code, message string) {
 
 func runWindow(logger *slog.Logger) {
 	window := new(app.Window)
-	window.Option(app.Title("Chub 浏览器管理"), app.Size(unit.Dp(1100), unit.Dp(720)))
+	window.Option(app.Title("Chub"), app.Size(unit.Dp(1100), unit.Dp(720)))
 	theme := material.NewTheme()
 	shell := ui.NewShell(theme)
+	discoverer := browser.NewDiscoverer()
+	shell.OnPathSearch(func(ctx context.Context, field ui.PathField, current string) (string, error) {
+		switch field {
+		case ui.PathChromeExecutable:
+			return discoverer.Resolve(ctx, domain.BrowserChrome, "")
+		case ui.PathEdgeExecutable:
+			return discoverer.Resolve(ctx, domain.BrowserEdge, "")
+		case ui.PathDefaultUserData, ui.PathLogDirectory:
+			if err := ctx.Err(); err != nil {
+				return "", err
+			}
+			path := strings.TrimSpace(current)
+			if path == "" {
+				return "", errors.New("请先输入要验证的目录，或使用选择按钮")
+			}
+			info, err := os.Stat(path)
+			if err != nil {
+				return "", err
+			}
+			if !info.IsDir() {
+				return "", errors.New("该路径不是目录")
+			}
+			return filepath.Clean(path), nil
+		default:
+			return "", errors.New("不支持的搜索字段")
+		}
+	}, window.Invalidate)
 	if path, err := config.DefaultPath(); err == nil {
 		if store, err := config.New(path); err == nil {
 			if saved, err := store.Load(); err == nil {