PipWindow.xaml.cs

using System.Windows;
using System.Windows.Input;
using Microsoft.Web.WebView2.Core;
using PiPCrunchy.Helpers;

namespace PiPCrunchy;

/// <summary>
/// Picture-in-Picture window that stays on top
/// </summary>
public partial class PipWindow : Window
{
    private readonly string _initialUrl;

    public PipWindow(string url)
    {
        InitializeComponent();
        _initialUrl = url ?? "https://www.crunchyroll.com";

        // Set initial position (bottom-right of screen with some padding)
        SetInitialPosition();

        // Initialize WebView2 asynchronously
        InitializeAsync();

        // Apply Win32 topmost as an additional layer
        Loaded += (s, e) => WindowHelper.SetAlwaysOnTop(this);

        // Subscribe to size changed event
        SizeChanged += (s, e) => SaveWindowSize();
    }

    private void SetInitialPosition()
    {
        // Position in bottom-right corner with 20px padding
        var workingArea = SystemParameters.WorkArea;
        Left = workingArea.Right - Width - 20;
        Top = workingArea.Bottom - Height - 20;
    }

    private async void InitializeAsync()
    {
        try
        {
            // Use shared WebView2 environment to avoid conflicts
            var environment = await WebView2EnvironmentManager.GetEnvironmentAsync();

            await PipWebView.EnsureCoreWebView2Async(environment);

            // Configure WebView2 settings for maximum performance in PiP mode
            if (PipWebView.CoreWebView2 != null)
            {
                var settings = PipWebView.CoreWebView2.Settings;
                settings.IsStatusBarEnabled = false;
                settings.AreDefaultContextMenusEnabled = false; // Reduce overhead in PiP
                settings.AreDevToolsEnabled = false;
                settings.IsZoomControlEnabled = false; // Reduce input overhead in PiP
                settings.IsSwipeNavigationEnabled = false;
                settings.AreBrowserAcceleratorKeysEnabled = false;
                settings.IsGeneralAutofillEnabled = false;
                settings.IsPasswordAutosaveEnabled = false;
                settings.IsPinchZoomEnabled = false; // Reduce gesture processing

                // Navigate to the URL
                PipWebView.CoreWebView2.Navigate(_initialUrl);
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(
                $"Failed to initialize Picture-in-Picture browser: {ex.Message}",
                "Initialization Error",
                MessageBoxButton.OK,
                MessageBoxImage.Error
            );
            Close();
        }
    }

    private void PipWebView_NavigationCompleted(object? sender, CoreWebView2NavigationCompletedEventArgs e)
    {
        if (PipWebView.CoreWebView2 != null)
        {
            // Update title to show current page
            var uri = new Uri(PipWebView.CoreWebView2.Source);
            TitleTextBlock.Text = uri.Host;
        }
    }

    private void TitleBar_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
        // Allow window dragging by title bar
        if (e.ChangedButton == MouseButton.Left)
        {
            DragMove();
        }
    }

    private void MinimizeButton_Click(object sender, RoutedEventArgs e)
    {
        WindowState = WindowState.Minimized;
    }

    private void CloseButton_Click(object sender, RoutedEventArgs e)
    {
        Close();
    }

    protected override void OnDeactivated(EventArgs e)
    {
        base.OnDeactivated(e);

        // Refresh topmost status when window loses focus
        // This helps maintain topmost position
        WindowHelper.RefreshTopmostStatus(this);
    }

    protected override void OnLocationChanged(EventArgs e)
    {
        base.OnLocationChanged(e);

        // Save window position for future sessions (optional enhancement)
        SaveWindowPosition();
    }

    private void SaveWindowPosition()
    {
        // Store position in application settings
        Properties.Settings.Default.PipWindowLeft = Left;
        Properties.Settings.Default.PipWindowTop = Top;
        Properties.Settings.Default.Save();
    }

    private void SaveWindowSize()
    {
        // Store size in application settings
        Properties.Settings.Default.PipWindowWidth = Width;
        Properties.Settings.Default.PipWindowHeight = Height;
        Properties.Settings.Default.Save();
    }

    private void LoadWindowSettings()
    {
        // Restore saved position and size if they exist
        if (Properties.Settings.Default.PipWindowWidth > 0)
        {
            Width = Properties.Settings.Default.PipWindowWidth;
            Height = Properties.Settings.Default.PipWindowHeight;
        }

        if (Properties.Settings.Default.PipWindowLeft > 0)
        {
            Left = Properties.Settings.Default.PipWindowLeft;
            Top = Properties.Settings.Default.PipWindowTop;
        }
    }
}