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Lingkungan

Akses informasi lingkungan sistem di aplikasi Wails Anda

Wails menyediakan informasi lingkungan yang lengkap melalui API EnvironmentManager. Dengan API ini, aplikasi Anda dapat mendeteksi properti sistem dan preferensi tema, serta terintegrasi dengan pengelola file sistem operasi.

Mengakses Pengelola Lingkungan

Pengelola lingkungan diakses melalui properti Env pada instans aplikasi Anda:

go
app := application.New(application.Options{
    Name: "Environment Demo",
})

// Access the environment manager
env := app.Env

Informasi Sistem

Mendapatkan Informasi Lingkungan

Dapatkan informasi lengkap tentang lingkungan runtime:

go
envInfo := app.Env.Info()

app.Logger.Info("Environment information",
    "os", envInfo.OS,           // "windows", "darwin", "linux"
    "arch", envInfo.Arch,       // "amd64", "arm64", etc.
    "debug", envInfo.Debug,     // Debug mode flag
)

// Operating system details
if envInfo.OSInfo != nil {
    app.Logger.Info("OS details",
        "name", envInfo.OSInfo.Name,
        "version", envInfo.OSInfo.Version,
    )
}

// Platform-specific information
for key, value := range envInfo.PlatformInfo {
    app.Logger.Info("Platform info", "key", key, "value", value)
}

Struktur Lingkungan

Informasi lingkungan mencakup beberapa bidang penting:

go
type EnvironmentInfo struct {
    OS           string                 // Operating system: "windows", "darwin", "linux"
    Arch         string                 // Architecture: "amd64", "arm64", "386", etc.
    Debug        bool                   // Whether running in debug mode
    OSInfo       *operatingsystem.OS    // Detailed OS information
    PlatformInfo map[string]any         // Platform-specific details
}

Deteksi Tema

Deteksi Mode Gelap

Deteksi apakah sistem menggunakan mode gelap:

go
if app.Env.IsDarkMode() {
    app.Logger.Info("System is in dark mode")
    // Apply dark theme to your application
    applyDarkTheme()
} else {
    app.Logger.Info("System is in light mode")
    // Apply light theme to your application
    applyLightTheme()
}

Pemantauan Perubahan Tema

Pantau perubahan tema untuk memperbarui aplikasi Anda secara dinamis:

go
import "github.com/wailsapp/wails/v3/pkg/events"

// Listen for theme changes
app.Event.OnApplicationEvent(events.Common.ThemeChanged, func(event *application.ApplicationEvent) {
    if app.Env.IsDarkMode() {
        app.Logger.Info("Switched to dark mode")
        updateApplicationTheme("dark")
    } else {
        app.Logger.Info("Switched to light mode")
        updateApplicationTheme("light")
    }
})

func updateApplicationTheme(theme string) {
    // Update your application's theme
    // This could emit an event to the frontend
    app.Event.Emit("theme:changed", theme)
}

Integrasi Pengelola File

Membuka Pengelola File

Buka pengelola file sistem di lokasi tertentu:

go
// Open file manager at a directory
err := app.Env.OpenFileManager("/Users/username/Documents", false)
if err != nil {
    app.Logger.Error("Failed to open file manager", "error", err)
}

// Open file manager and select a specific file
err = app.Env.OpenFileManager("/Users/username/Documents/report.pdf", true)
if err != nil {
    app.Logger.Error("Failed to open file manager with selection", "error", err)
}

Kasus Penggunaan Umum

Tampilkan file atau folder di pengelola file dari aplikasi Anda:

go
func showInFileManager(app *application.App, path string) {
    err := app.Env.OpenFileManager(path, true)
    if err != nil {
        // Fallback: try opening just the directory
        dir := filepath.Dir(path)
        err = app.Env.OpenFileManager(dir, false)
        if err != nil {
            app.Logger.Error("Could not open file manager", "path", path, "error", err)
            
            // Show error to user
            app.Dialog.Error().
                SetTitle("File Manager Error").
                SetMessage("Could not open file manager").
                Show()
        }
    }
}

// Usage examples
func setupFileMenu(app *application.App) {
    menu := app.Menu.New()
    fileMenu := menu.AddSubmenu("File")
    
    fileMenu.Add("Show Downloads Folder").OnClick(func(ctx *application.Context) {
        homeDir, _ := os.UserHomeDir()
        downloadsDir := filepath.Join(homeDir, "Downloads")
        showInFileManager(app, downloadsDir)
    })
    
    fileMenu.Add("Show Application Data").OnClick(func(ctx *application.Context) {
        configDir, _ := os.UserConfigDir()
        appDir := filepath.Join(configDir, "MyApp")
        showInFileManager(app, appDir)
    })
}

Perilaku Khusus Platform

Perilaku Aplikasi Adaptif

Gunakan informasi lingkungan untuk menyesuaikan perilaku aplikasi Anda:

go
func configureForPlatform(app *application.App) {
    envInfo := app.Env.Info()
    
    switch envInfo.OS {
    case "darwin":
        configureMacOS(app)
    case "windows":
        configureWindows(app)
    case "linux":
        configureLinux(app)
    }
    
    // Adapt to architecture
    if envInfo.Arch == "arm64" {
        app.Logger.Info("Running on ARM architecture")
        // Potentially optimize for ARM
    }
}

func configureMacOS(app *application.App) {
    app.Logger.Info("Configuring for macOS")
    
    // macOS-specific configuration
    menu := app.Menu.New()
    menu.AddRole(application.AppMenu) // Add standard macOS app menu
    
    // Handle dark mode
    if app.Env.IsDarkMode() {
        setMacOSDarkTheme()
    }
}

func configureWindows(app *application.App) {
    app.Logger.Info("Configuring for Windows")
    
    // Windows-specific configuration
    // Set up Windows-style menus, key bindings, etc.
}

func configureLinux(app *application.App) {
    app.Logger.Info("Configuring for Linux")
    
    // Linux-specific configuration
    // Adapt to different desktop environments
}

Penanganan Mode Debug

Pengembangan vs Produksi

Gunakan informasi mode debug untuk mengaktifkan fitur pengembangan:

go
func setupApplicationMode(app *application.App) {
    envInfo := app.Env.Info()
    
    if envInfo.Debug {
        app.Logger.Info("Running in debug mode")
        setupDevelopmentFeatures(app)
    } else {
        app.Logger.Info("Running in production mode")
        setupProductionFeatures(app)
    }
}

func setupDevelopmentFeatures(app *application.App) {
    // Enable development-only features
    menu := app.Menu.New()
    
    // Add development menu
    devMenu := menu.AddSubmenu("Development")
    devMenu.Add("Reload Application").OnClick(func(ctx *application.Context) {
        // Reload the application
        window := app.Window.Current()
        if window != nil {
            window.Reload()
        }
    })
    
    devMenu.Add("Open DevTools").OnClick(func(ctx *application.Context) {
        window := app.Window.Current()
        if window != nil {
            window.OpenDevTools()
        }
    })
    
    devMenu.Add("Show Environment").OnClick(func(ctx *application.Context) {
        showEnvironmentDialog(app)
    })
}

func setupProductionFeatures(app *application.App) {
    // Production-only features
    // Disable debug logging, enable analytics, etc.
}

API privat di macOS: OpenDevTools() memerlukan private_mac_apis; jika tidak, pemanggilan tersebut tidak melakukan apa pun. Build produksi juga memerlukan devtools. Lihat matriks build Web Inspector.

Dialog Informasi Lingkungan

Menampilkan Informasi Sistem

Buat dialog yang menampilkan informasi lingkungan:

go
func showEnvironmentDialog(app *application.App) {
    envInfo := app.Env.Info()
    
    details := fmt.Sprintf(`Environment Information:

Operating System: %s
Architecture: %s
Debug Mode: %t

Dark Mode: %t

Platform Information:`, 
        envInfo.OS, 
        envInfo.Arch, 
        envInfo.Debug,
        app.Env.IsDarkMode())
    
    // Add platform-specific details
    for key, value := range envInfo.PlatformInfo {
        details += fmt.Sprintf("\n%s: %v", key, value)
    }
    
    if envInfo.OSInfo != nil {
        details += fmt.Sprintf("\n\nOS Details:\nName: %s\nVersion: %s", 
            envInfo.OSInfo.Name, 
            envInfo.OSInfo.Version)
    }
    
    dialog := app.Dialog.Info()
    dialog.SetTitle("Environment Information")
    dialog.SetMessage(details)
    dialog.Show()
}

Pertimbangan Platform

Di macOS:

  • Deteksi mode gelap menggunakan pengaturan tampilan sistem
  • Operasi pengelola file menggunakan Finder
  • Informasi platform mencakup detail versi macOS
  • Arsitektur dapat berupa “arm64” pada Mac dengan Apple Silicon
go
if envInfo.OS == "darwin" {
    // macOS-specific handling
    if envInfo.Arch == "arm64" {
        app.Logger.Info("Running on Apple Silicon")
    }
}

Praktik Terbaik

  1. Simpan Informasi Lingkungan dalam Cache: Informasi lingkungan jarang berubah selama runtime:
go
type App struct {
    envInfo *application.EnvironmentInfo
}

func (a *App) getEnvInfo() application.EnvironmentInfo {
    if a.envInfo == nil {
        info := a.app.Env.Info()
        a.envInfo = &info
    }
    return *a.envInfo
}
  1. Tangani Perubahan Tema: Pantau perubahan tema sistem:
go
app.Event.OnApplicationEvent(events.Common.ThemeChanged, func(event *application.ApplicationEvent) {
    updateTheme(app.Env.IsDarkMode())
})
  1. Tangani Kegagalan Pengelola File dengan Baik: Selalu tangani kesalahan pengelola file:
go
func openFileManagerSafely(app *application.App, path string) {
    err := app.Env.OpenFileManager(path, false)
    if err != nil {
        // Provide fallback or user notification
        app.Logger.Warn("Could not open file manager", "path", path)
    }
}
  1. Fitur Khusus Platform: Gunakan informasi lingkungan untuk mengaktifkan fitur platform:
go
envInfo := app.Env.Info()
if envInfo.OS == "darwin" {
    // Enable macOS-specific features
}

Contoh Lengkap

Berikut contoh lengkap yang mendemonstrasikan pengelolaan lingkungan:

go
package main

import (
    "fmt"
    "os"
    "path/filepath"
    "runtime"
    "github.com/wailsapp/wails/v3/pkg/application"
    "github.com/wailsapp/wails/v3/pkg/events"
)

func main() {
    app := application.New(application.Options{
        Name: "Environment Demo",
    })

    // Setup application based on environment
    setupForEnvironment(app)

    // Monitor theme changes
    monitorThemeChanges(app)

    // Create menu with environment features
    setupEnvironmentMenu(app)

    // Create main window
    window := app.Window.New()
    window.SetTitle("Environment Demo")

    err := app.Run()
    if err != nil {
        panic(err)
    }
}

func setupForEnvironment(app *application.App) {
    envInfo := app.Env.Info()
    
    app.Logger.Info("Application environment",
        "os", envInfo.OS,
        "arch", envInfo.Arch,
        "debug", envInfo.Debug,
        "darkMode", app.Env.IsDarkMode(),
    )

    // Configure for platform
    switch envInfo.OS {
    case "darwin":
        app.Logger.Info("Configuring for macOS")
        // macOS-specific setup
    case "windows":
        app.Logger.Info("Configuring for Windows")
        // Windows-specific setup
    case "linux":
        app.Logger.Info("Configuring for Linux")
        // Linux-specific setup
    }

    // Apply initial theme
    if app.Env.IsDarkMode() {
        applyDarkTheme(app)
    } else {
        applyLightTheme(app)
    }
}

func monitorThemeChanges(app *application.App) {
    app.Event.OnApplicationEvent(events.Common.ThemeChanged, func(event *application.ApplicationEvent) {
        if app.Env.IsDarkMode() {
            app.Logger.Info("System switched to dark mode")
            applyDarkTheme(app)
        } else {
            app.Logger.Info("System switched to light mode")
            applyLightTheme(app)
        }
    })
}

func setupEnvironmentMenu(app *application.App) {
    menu := app.Menu.New()
    
    // Add platform-specific app menu
    if runtime.GOOS == "darwin" {
        menu.AddRole(application.AppMenu)
    }
    
    // Tools menu
    toolsMenu := menu.AddSubmenu("Tools")
    
    toolsMenu.Add("Show Environment Info").OnClick(func(ctx *application.Context) {
        showEnvironmentInfo(app)
    })
    
    toolsMenu.Add("Open Downloads Folder").OnClick(func(ctx *application.Context) {
        openDownloadsFolder(app)
    })
    
    toolsMenu.Add("Toggle Theme").OnClick(func(ctx *application.Context) {
        // This would typically be handled by the system
        // but shown here for demonstration
        toggleTheme(app)
    })
    
    app.Menu.Set(menu)
}

func showEnvironmentInfo(app *application.App) {
    envInfo := app.Env.Info()
    
    message := fmt.Sprintf(`Environment Information:

Operating System: %s
Architecture: %s
Debug Mode: %t
Dark Mode: %t

Platform Details:`,
        envInfo.OS,
        envInfo.Arch,
        envInfo.Debug,
        app.Env.IsDarkMode())
    
    for key, value := range envInfo.PlatformInfo {
        message += fmt.Sprintf("\n%s: %v", key, value)
    }
    
    if envInfo.OSInfo != nil {
        message += fmt.Sprintf("\n\nOS Information:\nName: %s\nVersion: %s",
            envInfo.OSInfo.Name,
            envInfo.OSInfo.Version)
    }
    
    dialog := app.Dialog.Info()
    dialog.SetTitle("Environment Information")
    dialog.SetMessage(message)
    dialog.Show()
}

func openDownloadsFolder(app *application.App) {
    homeDir, err := os.UserHomeDir()
    if err != nil {
        app.Logger.Error("Could not get home directory", "error", err)
        return
    }
    
    downloadsDir := filepath.Join(homeDir, "Downloads")
    err = app.Env.OpenFileManager(downloadsDir, false)
    if err != nil {
        app.Logger.Error("Could not open Downloads folder", "error", err)
        
        app.Dialog.Error().
            SetTitle("File Manager Error").
            SetMessage("Could not open Downloads folder").
            Show()
    }
}

func applyDarkTheme(app *application.App) {
    app.Logger.Info("Applying dark theme")
    // Emit theme change to frontend
    app.Event.Emit("theme:apply", "dark")
}

func applyLightTheme(app *application.App) {
    app.Logger.Info("Applying light theme")
    // Emit theme change to frontend
    app.Event.Emit("theme:apply", "light")
}

func toggleTheme(app *application.App) {
    // This is just for demonstration
    // Real theme changes should come from the system
    currentlyDark := app.Env.IsDarkMode()
    if currentlyDark {
        applyLightTheme(app)
    } else {
        applyDarkTheme(app)
    }
}
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