| 1 | //go:build windows |
| 2 | |
| 3 | package webviewloader |
| 4 | |
| 5 | import ( |
| 6 | "errors" |
| 7 | "fmt" |
| 8 | "os" |
| 9 | "path/filepath" |
| 10 | "runtime" |
| 11 | |
| 12 | "golang.org/x/sys/windows/registry" |
| 13 | ) |
| 14 | |
| 15 | var ( |
| 16 | errNoClientDLLFound = errors.New("no webview2 found") |
| 17 | ) |
| 18 | |
| 19 | func findEmbeddedBrowserVersion(filename string) (string, error) { |
| 20 | block, err := getFileVersionInfo(filename) |
| 21 | if err != nil { |
| 22 | return "", err |
| 23 | } |
| 24 | |
| 25 | info, err := verQueryValueString(block, "\\StringFileInfo\\040904B0\\ProductVersion") |
| 26 | if err != nil { |
| 27 | return "", err |
| 28 | } |
| 29 | |
| 30 | return info, nil |
| 31 | } |
| 32 | |
| 33 | func findEmbeddedClientDll(embeddedEdgeSubFolder string) (outClientPath string, err error) { |
| 34 | if !filepath.IsAbs(embeddedEdgeSubFolder) { |
| 35 | exe, err := os.Executable() |
| 36 | if err != nil { |
| 37 | return "", err |
| 38 | } |
| 39 | |
| 40 | embeddedEdgeSubFolder = filepath.Join(filepath.Dir(exe), embeddedEdgeSubFolder) |
| 41 | } |
| 42 | |
| 43 | return findClientDllInFolder(embeddedEdgeSubFolder) |
| 44 | } |
| 45 | |
| 46 | func findClientDllInFolder(folder string) (string, error) { |
| 47 | arch := "" |
| 48 | switch runtime.GOARCH { |
| 49 | case "arm64": |
| 50 | arch = "arm64" |
| 51 | case "amd64": |
| 52 | arch = "x64" |
| 53 | case "386": |
| 54 | arch = "x86" |
| 55 | default: |
| 56 | return "", fmt.Errorf("Unsupported architecture") |
| 57 | } |
| 58 | |
| 59 | dllPath := filepath.Join(folder, "EBWebView", arch, "EmbeddedBrowserWebView.dll") |
| 60 | if _, err := os.Stat(dllPath); err != nil { |
| 61 | return "", mapFindErr(err) |
| 62 | } |
| 63 | return dllPath, nil |
| 64 | } |
| 65 | |
| 66 | func mapFindErr(err error) error { |
| 67 | if errors.Is(err, registry.ErrNotExist) { |
| 68 | return errNoClientDLLFound |
| 69 | } |
| 70 | if errors.Is(err, os.ErrNotExist) { |
| 71 | return errNoClientDLLFound |
| 72 | } |
| 73 | return err |
| 74 | } |
| 75 |