Initial commit

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

platform_windows.go

@@ -0,0 +1,184 @@
+//go:build windows
+
+package main
+
+import (
+	"bufio"
+	"context"
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"syscall"
+	"time"
+	"unicode/utf16"
+)
+
+const nativeDialogs = true
+
+const createNoWindow = 0x08000000
+
+// hideConsole stops child console programs (ffmpeg, powershell) from opening
+// a console window. HideWindow is deliberately not set: Windows would apply
+// SW_HIDE to the first window the child shows, i.e. the file dialog.
+func hideConsole(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{CreationFlags: createNoWindow}
+}
+
+func listRoots() []string {
+	mask, _, _ := syscall.NewLazyDLL("kernel32.dll").NewProc("GetLogicalDrives").Call()
+	var roots []string
+	for i := 0; i < 26; i++ {
+		if mask&(1<<uint(i)) != 0 {
+			roots = append(roots, string(rune('A'+i))+`:\`)
+		}
+	}
+	return roots
+}
+
+// openBrowser prefers a chromeless Edge (or Chrome) "app" window, which feels
+// like a normal desktop program, and falls back to the default browser.
+func openBrowser(url string, preferDefault bool) error {
+	if !preferDefault {
+		var candidates []string
+		for _, env := range []string{"ProgramFiles(x86)", "ProgramFiles", "LocalAppData"} {
+			base := os.Getenv(env)
+			if base == "" {
+				continue
+			}
+			candidates = append(candidates,
+				filepath.Join(base, `Microsoft\Edge\Application\msedge.exe`),
+				filepath.Join(base, `Google\Chrome\Application\chrome.exe`))
+		}
+		for _, p := range candidates {
+			if _, err := os.Stat(p); err != nil {
+				continue
+			}
+			cmd := exec.Command(p, "--app="+url, "--window-size=1440,920")
+			if err := cmd.Start(); err == nil {
+				go cmd.Wait()
+				return nil
+			}
+		}
+	}
+	return exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
+}
+
+func revealInFileManager(path string) error {
+	cmd := exec.Command("explorer.exe")
+	cmd.SysProcAttr = &syscall.SysProcAttr{CmdLine: `explorer.exe /select,"` + path + `"`}
+	if err := cmd.Start(); err != nil {
+		return err
+	}
+	go cmd.Wait() // explorer exits with status 1 even on success
+	return nil
+}
+
+func waitBeforeExit() {
+	fmt.Fprint(os.Stderr, "\nPress Enter to close...")
+	bufio.NewReader(os.Stdin).ReadString('\n')
+}
+
+// Native file dialogs are shown through PowerShell + Windows Forms so the
+// program needs no cgo. Values are passed via environment variables, never
+// spliced into the script.
+const psDialogPrelude = `
+$ErrorActionPreference = 'Stop'
+[Console]::OutputEncoding = New-Object System.Text.UTF8Encoding $false
+Add-Type -AssemblyName System.Windows.Forms
+[System.Windows.Forms.Application]::EnableVisualStyles()
+$owner = New-Object System.Windows.Forms.Form
+$owner.TopMost = $true
+$owner.ShowInTaskbar = $false
+`
+
+const psOpenDialog = psDialogPrelude + `
+$d = New-Object System.Windows.Forms.OpenFileDialog
+$d.Title = $env:VIBEDIT_TITLE
+$d.Multiselect = $true
+$d.Filter = $env:VIBEDIT_FILTER
+if ($env:VIBEDIT_DIR -and (Test-Path -LiteralPath $env:VIBEDIT_DIR -PathType Container)) { $d.InitialDirectory = $env:VIBEDIT_DIR }
+if ($d.ShowDialog($owner) -eq [System.Windows.Forms.DialogResult]::OK) {
+  foreach ($f in $d.FileNames) { [Console]::Out.WriteLine($f) }
+}
+$owner.Dispose()
+`
+
+const psSaveDialog = psDialogPrelude + `
+$d = New-Object System.Windows.Forms.SaveFileDialog
+$d.Title = $env:VIBEDIT_TITLE
+$d.Filter = $env:VIBEDIT_FILTER
+$d.OverwritePrompt = $false
+$d.AddExtension = $true
+$d.DefaultExt = $env:VIBEDIT_EXT
+$d.FileName = $env:VIBEDIT_NAME
+if ($env:VIBEDIT_DIR -and (Test-Path -LiteralPath $env:VIBEDIT_DIR -PathType Container)) { $d.InitialDirectory = $env:VIBEDIT_DIR }
+if ($d.ShowDialog($owner) -eq [System.Windows.Forms.DialogResult]::OK) { [Console]::Out.WriteLine($d.FileName) }
+$owner.Dispose()
+`
+
+func runPowerShell(script string, env map[string]string) ([]string, error) {
+	u := utf16.Encode([]rune(script))
+	b := make([]byte, len(u)*2)
+	for i, c := range u {
+		binary.LittleEndian.PutUint16(b[i*2:], c)
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Hour)
+	defer cancel()
+	cmd := exec.CommandContext(ctx, "powershell.exe", "-NoProfile", "-NonInteractive", "-ExecutionPolicy", "Bypass", "-STA",
+		"-EncodedCommand", base64.StdEncoding.EncodeToString(b))
+	cmd.Env = os.Environ()
+	for k, v := range env {
+		cmd.Env = append(cmd.Env, k+"="+v)
+	}
+	hideConsole(cmd)
+	out, err := cmd.Output()
+	if err != nil {
+		return nil, err
+	}
+	var lines []string
+	for _, l := range strings.Split(strings.TrimPrefix(string(out), "\uFEFF"), "\n") {
+		if l = strings.TrimSpace(l); l != "" {
+			lines = append(lines, l)
+		}
+	}
+	return lines, nil
+}
+
+func videoFilter() string {
+	var pats []string
+	for _, e := range mediaExts {
+		pats = append(pats, "*."+e)
+	}
+	return "Video files|" + strings.Join(pats, ";") + "|All files|*.*"
+}
+
+func nativeOpenDialog(title, dir string) ([]string, error) {
+	return runPowerShell(psOpenDialog, map[string]string{
+		"VIBEDIT_TITLE":  title,
+		"VIBEDIT_FILTER": videoFilter(),
+		"VIBEDIT_DIR":    dir,
+	})
+}
+
+func nativeSaveDialog(title, path string) (string, error) {
+	ext := strings.TrimPrefix(filepath.Ext(path), ".")
+	filter := "All files|*.*"
+	if ext != "" {
+		filter = strings.ToUpper(ext) + " video|*." + ext + "|" + filter
+	}
+	lines, err := runPowerShell(psSaveDialog, map[string]string{
+		"VIBEDIT_TITLE":  title,
+		"VIBEDIT_FILTER": filter,
+		"VIBEDIT_EXT":    ext,
+		"VIBEDIT_NAME":   filepath.Base(path),
+		"VIBEDIT_DIR":    filepath.Dir(path),
+	})
+	if err != nil || len(lines) == 0 {
+		return "", err
+	}
+	return lines[0], nil
+}