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UltralightUIScript.cs
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UltralightUIScript.cs
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// OUT OF DATE - see latest version here: https://github.com/lionfire/Core/blob/master/src/LionFire.Hosting.Stride/Ultralight/UltralightUIScript.cs
// Based on https://github.com/makotech222/Ultralight-Stride3d_Integration -- see its README for more info
//#define TRACE_TouchEvents
using System;
using System.IO;
using System.Linq;
using LionFire.Dependencies;
using Microsoft.Extensions.Logging;
using Stride.Core;
using Stride.Engine;
using Stride.Graphics;
using Stride.Rendering.Sprites;
using Stride.UI.Controls;
using LogLevel = Microsoft.Extensions.Logging.LogLevel;
using System.Threading.Tasks;
using System.Collections.Concurrent;
using System.Reflection;
using Microsoft.Extensions.Hosting;
using LionFire.Threading;
using ImpromptuNinjas.UltralightSharp.Safe;
using MouseButton = ImpromptuNinjas.UltralightSharp.Enums.MouseButton;
using MouseEventType = ImpromptuNinjas.UltralightSharp.Enums.MouseEventType;
using System.Runtime.InteropServices;
using ImpromptuString = ImpromptuNinjas.UltralightSharp.String;
namespace LionFire.Stride3D.UI
{
/// <remarks>
/// Sets up Ultralight to draws to Grid > Image "img"
/// Override Start() and Update() and call the base methods
/// </remarks>
public class UltralightUIScript : SyncScript
{
#region (Static)
/// <summary>
/// Should be only one renderer per Game.
/// </summary>
protected static ImpromptuNinjas.UltralightSharp.Safe.Renderer renderer;
#endregion
#region Parameters
/// <summary>
/// Full path to directory containing html files.
/// </summary>
[DataMemberIgnore]
public string AssetDirectory { get; set; } = Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), "wwwroot");
/// <summary>
/// File path to main html file. Should be inside the AssetDirectory folder.
/// </summary>
[DataMemberIgnore]
public string LoadingUrl { get; set; } = "http://google.com"; // file:///index.html
[DataMemberIgnore]
public string StartUrl { get; set; } = "http://google.com";
//public string StartUrl { get; set; } = "http://localhost:5000/";
#endregion
#region Dependencies
private ILogger Logger { get; set; }
private IHostApplicationLifetime HostApplicationLifetime { get; }
#endregion
#region Relationships
/// <summary>
/// View created by Ultralight.
/// </summary>
protected ImpromptuNinjas.UltralightSharp.Safe.View View { get; set; }
protected ImpromptuNinjas.UltralightSharp.Safe.Session session;
protected Texture texture;
protected SpriteFromTexture sprite;
#region ImageElement
private ImageElement ImageElement
{
get => imageElement;
set
{
imageElement = value;
UpdateImageVisibility();
}
}
private ImageElement imageElement;
private void UpdateImageVisibility()
{
if (imageElement != null)
{
imageElement.Visibility = visible ? Stride.UI.Visibility.Visible : Stride.UI.Visibility.Hidden;
//imageElement.CanBeHitByUser = visible; // REVIEW - is this needed?
}
}
#endregion
#endregion
#region Construction and Destruction
public UltralightUIScript()
{
Logger = DependencyContext.Current?.GetService<ILogger<UltralightUIScript>>() ?? (ILogger)Logging.Null.NullLogger.Instance;
HostApplicationLifetime = DependencyContext.Current?.GetService<IHostApplicationLifetime>();
}
protected void InitUltralight()
{
Ultralight.SetLogger(new Logger { LogMessage = LoggerCallback });
using var cfg = new Config();
var cachePath = Path.Combine(AssetDirectory, "Cache");
cfg.SetCachePath(cachePath);
var resourcePath = Path.Combine(AssetDirectory, "resources");
cfg.SetResourcePath(resourcePath);
cfg.SetUseGpuRenderer(false);
cfg.SetEnableImages(true);
cfg.SetEnableJavaScript(true);
AppCore.EnablePlatformFontLoader();
AppCore.EnablePlatformFileSystem(AssetDirectory);
renderer = new Renderer(cfg);
}
~UltralightUIScript()
{
View?.Dispose();
renderer?.Dispose();
}
#endregion
#region State
protected uint width;
protected uint height;
private bool loadedLoadingUrl = false;
private bool IsWebServerAvailable => HostApplicationLifetime.ApplicationStarted.IsCancellationRequested;
private bool startedLoadingStartUrl = false;
private bool javascriptTestComplete = false;
#region Visible
[DataMemberIgnore]
public bool Visible
{
get => visible;
set
{
visible = value;
UpdateImageVisibility();
}
}
private bool visible;
#endregion
ComponentUI pendingInputEvents = new ComponentUI();
#endregion
#region Event Handlers
private void OnPrivateWebServerStarted()
{
if (startedLoadingStartUrl) return;
startedLoadingStartUrl = true;
Logger.LogInformation($"Loading: {StartUrl}");
View.LoadUrl(StartUrl);
}
#region Event Handlers: Stride UI
#region Mouse / Touch
private void ImageElement_MouseOverStateChanged(object sender, Stride.UI.PropertyChangedArgs<Stride.UI.MouseOverState> e)
{
Logger.LogDebug($"MouseOverStateChanged {e.NewValue}");
}
private void ImageElement_TouchEnter(object sender, Stride.UI.TouchEventArgs e)
{
Logger.LogDebug("TouchEnter " + e.ScreenPosition);
}
private void ImageElement_TouchDown(object sender, Stride.UI.TouchEventArgs e)
{
#if TRACE_TouchEvents
Logger.LogTrace($"TouchDown {e.ScreenPosition} ({(int)(e.ScreenPosition.X * width)},{(int)(e.ScreenPosition.Y * height)}) {(Input.Mouse.DownButtons.Any() ? Input.Mouse.DownButtons.Select(m => m.ToString()).Aggregate((x, y) => $"{x},{y}") : "")}");
#endif
pendingInputEvents.MouseEvents.Enqueue(new MouseEvent(MouseEventType.MouseDown, (int)(e.ScreenPosition.X * width), (int)(e.ScreenPosition.Y * height), MouseButton.Left));
}
private void ImageElement_TouchUp(object sender, Stride.UI.TouchEventArgs e)
{
#if TRACE_TouchEvents
Logger.LogTrace($"TouchUp {e.ScreenPosition} ({(int)(e.ScreenPosition.X * width)},{(int)(e.ScreenPosition.Y * height)})");
#endif
pendingInputEvents.MouseEvents.Enqueue(new MouseEvent(MouseEventType.MouseUp, (int)(e.ScreenPosition.X * width), (int)(e.ScreenPosition.Y * height), MouseButton.Left));
}
#endregion
#region Keyboard
#endregion
#endregion
#endregion
#region Stride Component Overrides
public override void Start()
{
base.Start();
#region UIComponent
var uiComponent = Entity.Get<UIComponent>();
if (uiComponent == null) { Logger.LogError($"{this.GetType().FullName} script must be installed on the same Entity as UIComponent"); return; }
#endregion
#region ImageElement
//var gridElement = uiComponent.Page.RootElement.VisualChildren.FirstOrDefault() as Stride.UI.Panels.Grid;
imageElement = uiComponent.Page.RootElement.VisualChildren.OfType<ImageElement>().FirstOrDefault() as ImageElement;
if (imageElement == null) { Logger.LogError($"Failed to find image element. The first ImageElement in VisualChildren will be used."); return; }
#region Events
imageElement.TouchUp += ImageElement_TouchUp;
imageElement.TouchDown += ImageElement_TouchDown;
imageElement.TouchEnter += ImageElement_TouchEnter;
imageElement.MouseOverStateChanged += ImageElement_MouseOverStateChanged;
#endregion
Logger.LogDebug($"Drawing to image: {imageElement.Name}");
#endregion
width = (uint)uiComponent.Resolution.X;
height = (uint)uiComponent.Resolution.Y;
#region Ultralight setup
texture = Texture.New2D(this.GraphicsDevice, (int)width, (int)height, Stride.Graphics.PixelFormat.B8G8R8A8_UNorm_SRgb, TextureFlags.ShaderResource | TextureFlags.RenderTarget);
sprite = new SpriteFromTexture();
if (renderer == null) { InitUltralight(); }
session = new Session(renderer, false, "");
View = new View(renderer, width, height, true, session);
View.SetFinishLoadingCallback((data, caller, frameId, isMainFrame, url) =>
{
loadedLoadingUrl = true;
Logger.LogInformation($"Finished loading: {url}");
}, default);
#endregion
#region LoadUrl
if (!IsWebServerAvailable)
{
Logger.LogInformation("Web server not available yet. Loading LoadingUrl.");
View.LoadUrl(LoadingUrl);
//Task.Run(async () =>
//{
// //await HostApplicationLifetime.ApplicationStarted;
// while(!IsWebServerAvailable)
// {
// Logger.LogInformation("Waiting for web server to start... ");
// await Task.Delay(250);
// }
// Logger.LogInformation("Waiting for web server to start...done.");
// OnPrivateWebServerStarted();
//});
}
else
{
Logger.LogInformation("Web server already available. (Skipping LoadingUrl.)");
loadedLoadingUrl = true;
OnPrivateWebServerStarted();
}
#endregion
}
private Stride.Input.Keys ToggleKey = Stride.Input.Keys.F10;
public override void Update()
{
if (renderer == null) return;
if (!loadedLoadingUrl)
{
renderer.Update();
renderer.Render();
if (!loadedLoadingUrl) { return; }
}
if (!startedLoadingStartUrl && IsWebServerAvailable) { OnPrivateWebServerStarted(); }
if (!javascriptTestComplete) { DoJavascriptTest(); }
FireInputs(pendingInputEvents);
if (Input.HasPressedKeys)
{
if (Input.PressedKeys.Contains(ToggleKey)) { Visible ^= true; }
foreach (var key in Input.PressedKeys)
{
if (key == ToggleKey) continue;
string keyString = null;
switch (key)
{
case Stride.Input.Keys.D0:
case Stride.Input.Keys.D1:
case Stride.Input.Keys.D2:
case Stride.Input.Keys.D3:
case Stride.Input.Keys.D4:
case Stride.Input.Keys.D5:
case Stride.Input.Keys.D6:
case Stride.Input.Keys.D7:
case Stride.Input.Keys.D8:
case Stride.Input.Keys.D9:
keyString = key.ToString()[1].ToString();
break;
case Stride.Input.Keys.A:
case Stride.Input.Keys.B:
case Stride.Input.Keys.C:
case Stride.Input.Keys.D:
case Stride.Input.Keys.E:
case Stride.Input.Keys.F:
case Stride.Input.Keys.G:
case Stride.Input.Keys.H:
case Stride.Input.Keys.I:
case Stride.Input.Keys.J:
case Stride.Input.Keys.K:
case Stride.Input.Keys.L:
case Stride.Input.Keys.M:
case Stride.Input.Keys.N:
case Stride.Input.Keys.O:
case Stride.Input.Keys.P:
case Stride.Input.Keys.Q:
case Stride.Input.Keys.R:
case Stride.Input.Keys.S:
case Stride.Input.Keys.T:
case Stride.Input.Keys.U:
case Stride.Input.Keys.V:
case Stride.Input.Keys.W:
case Stride.Input.Keys.X:
case Stride.Input.Keys.Y:
case Stride.Input.Keys.Z:
keyString = key.ToString().ToLowerInvariant();
break;
default:
break;
}
if (keyString != null)
{
unsafe
{
Logger.LogInformation($"Key pressed: {key}");
pendingInputEvents.KeyboardEvents.Enqueue(new KeyEvent(ImpromptuNinjas.UltralightSharp.Enums.KeyEventType.Char, 0, 0, 0, ImpromptuString.Create(key.ToString().ToLowerInvariant()), ImpromptuString.Create(key.ToString().ToLowerInvariant()), false, false, false));
}
continue;
}
int nativeCode = 0;
// See https://ultralig.ht/api/1_0/_key_codes_8h_source.html
switch (key)
{
case Stride.Input.Keys.None:
break;
case Stride.Input.Keys.Cancel:
break;
case Stride.Input.Keys.Back:
break;
case Stride.Input.Keys.Tab:
break;
case Stride.Input.Keys.LineFeed:
break;
case Stride.Input.Keys.Clear:
break;
case Stride.Input.Keys.Enter:
//case Stride.Input.Keys.Return:
break;
case Stride.Input.Keys.Pause:
break;
case Stride.Input.Keys.CapsLock:
//case Stride.Input.Keys.Capital:
break;
case Stride.Input.Keys.HangulMode:
//case Stride.Input.Keys.KanaMode:
break;
case Stride.Input.Keys.JunjaMode:
break;
case Stride.Input.Keys.FinalMode:
break;
case Stride.Input.Keys.HanjaMode:
//case Stride.Input.Keys.KanjiMode:
break;
case Stride.Input.Keys.Escape:
break;
case Stride.Input.Keys.ImeConvert:
break;
case Stride.Input.Keys.ImeNonConvert:
break;
case Stride.Input.Keys.ImeAccept:
break;
case Stride.Input.Keys.ImeModeChange:
break;
case Stride.Input.Keys.Space:
break;
case Stride.Input.Keys.PageUp:
break;
//case Stride.Input.Keys.Prior:
// break;
//case Stride.Input.Keys.Next:
// break;
case Stride.Input.Keys.PageDown:
break;
case Stride.Input.Keys.End:
break;
case Stride.Input.Keys.Home:
break;
case Stride.Input.Keys.Left:
nativeCode = 0x25;
break;
case Stride.Input.Keys.Up:
nativeCode = 0x26;
break;
case Stride.Input.Keys.Right:
nativeCode = 0x27;
break;
case Stride.Input.Keys.Down:
nativeCode = 0x28;
break;
case Stride.Input.Keys.Select:
break;
case Stride.Input.Keys.Print:
break;
case Stride.Input.Keys.Execute:
break;
case Stride.Input.Keys.PrintScreen:
//case Stride.Input.Keys.Snapshot:
break;
case Stride.Input.Keys.Insert:
break;
case Stride.Input.Keys.Delete:
break;
case Stride.Input.Keys.Help:
break;
case Stride.Input.Keys.LeftWin:
break;
case Stride.Input.Keys.RightWin:
break;
case Stride.Input.Keys.Apps:
break;
case Stride.Input.Keys.Sleep:
break;
case Stride.Input.Keys.NumPad0:
break;
case Stride.Input.Keys.NumPad1:
break;
case Stride.Input.Keys.NumPad2:
break;
case Stride.Input.Keys.NumPad3:
break;
case Stride.Input.Keys.NumPad4:
break;
case Stride.Input.Keys.NumPad5:
break;
case Stride.Input.Keys.NumPad6:
break;
case Stride.Input.Keys.NumPad7:
break;
case Stride.Input.Keys.NumPad8:
break;
case Stride.Input.Keys.NumPad9:
break;
case Stride.Input.Keys.Multiply:
break;
case Stride.Input.Keys.Add:
break;
case Stride.Input.Keys.Separator:
break;
case Stride.Input.Keys.Subtract:
break;
case Stride.Input.Keys.Decimal:
break;
case Stride.Input.Keys.Divide:
break;
case Stride.Input.Keys.F1:
break;
case Stride.Input.Keys.F2:
break;
case Stride.Input.Keys.F3:
break;
case Stride.Input.Keys.F4:
break;
case Stride.Input.Keys.F5:
break;
case Stride.Input.Keys.F6:
break;
case Stride.Input.Keys.F7:
break;
case Stride.Input.Keys.F8:
break;
case Stride.Input.Keys.F9:
break;
case Stride.Input.Keys.F10:
break;
case Stride.Input.Keys.F11:
break;
case Stride.Input.Keys.F12:
break;
case Stride.Input.Keys.F13:
break;
case Stride.Input.Keys.F14:
break;
case Stride.Input.Keys.F15:
break;
case Stride.Input.Keys.F16:
break;
case Stride.Input.Keys.F17:
break;
case Stride.Input.Keys.F18:
break;
case Stride.Input.Keys.F19:
break;
case Stride.Input.Keys.F20:
break;
case Stride.Input.Keys.F21:
break;
case Stride.Input.Keys.F22:
break;
case Stride.Input.Keys.F23:
break;
case Stride.Input.Keys.F24:
break;
case Stride.Input.Keys.NumLock:
break;
case Stride.Input.Keys.Scroll:
break;
case Stride.Input.Keys.LeftShift:
break;
case Stride.Input.Keys.RightShift:
break;
case Stride.Input.Keys.LeftCtrl:
break;
case Stride.Input.Keys.RightCtrl:
break;
case Stride.Input.Keys.LeftAlt:
break;
case Stride.Input.Keys.RightAlt:
break;
case Stride.Input.Keys.BrowserBack:
break;
case Stride.Input.Keys.BrowserForward:
break;
case Stride.Input.Keys.BrowserRefresh:
break;
case Stride.Input.Keys.BrowserStop:
break;
case Stride.Input.Keys.BrowserSearch:
break;
case Stride.Input.Keys.BrowserFavorites:
break;
case Stride.Input.Keys.BrowserHome:
break;
case Stride.Input.Keys.VolumeMute:
break;
case Stride.Input.Keys.VolumeDown:
break;
case Stride.Input.Keys.VolumeUp:
break;
case Stride.Input.Keys.MediaNextTrack:
break;
case Stride.Input.Keys.MediaPreviousTrack:
break;
case Stride.Input.Keys.MediaStop:
break;
case Stride.Input.Keys.MediaPlayPause:
break;
case Stride.Input.Keys.LaunchMail:
break;
case Stride.Input.Keys.SelectMedia:
break;
case Stride.Input.Keys.LaunchApplication1:
break;
case Stride.Input.Keys.LaunchApplication2:
break;
case Stride.Input.Keys.Oem1:
break;
//case Stride.Input.Keys.OemSemicolon:
// break;
case Stride.Input.Keys.OemPlus:
break;
case Stride.Input.Keys.OemComma:
break;
case Stride.Input.Keys.OemMinus:
break;
case Stride.Input.Keys.OemPeriod:
break;
case Stride.Input.Keys.Oem2:
break;
//case Stride.Input.Keys.OemQuestion:
// break;
case Stride.Input.Keys.Oem3:
break;
//case Stride.Input.Keys.OemTilde:
// break;
case Stride.Input.Keys.Oem4:
break;
//case Stride.Input.Keys.OemOpenBrackets:
// break;
case Stride.Input.Keys.Oem5:
break;
//case Stride.Input.Keys.OemPipe:
// break;
case Stride.Input.Keys.Oem6:
break;
//case Stride.Input.Keys.OemCloseBrackets:
// break;
case Stride.Input.Keys.Oem7:
break;
//case Stride.Input.Keys.OemQuotes:
// break;
case Stride.Input.Keys.Oem8:
break;
case Stride.Input.Keys.Oem102:
break;
//case Stride.Input.Keys.OemBackslash:
// break;
case Stride.Input.Keys.Attn:
break;
case Stride.Input.Keys.CrSel:
break;
case Stride.Input.Keys.ExSel:
break;
case Stride.Input.Keys.EraseEof:
break;
case Stride.Input.Keys.Play:
break;
case Stride.Input.Keys.Zoom:
break;
case Stride.Input.Keys.NoName:
break;
case Stride.Input.Keys.Pa1:
break;
case Stride.Input.Keys.OemClear:
break;
case Stride.Input.Keys.NumPadEnter:
break;
case Stride.Input.Keys.NumPadDecimal:
break;
default:
break;
}
if (nativeCode != 0)
{
Logger.LogInformation($"'{key.ToString()}' Key pressed. (code: {nativeCode})");
// FIXME: Crash!
unsafe
{
//pendingInputEvents.KeyboardEvents.Enqueue(new KeyEvent(ImpromptuNinjas.UltralightSharp.Enums.KeyEventType.RawKeyDown, 0, 0, nativeCode, null, null, false, false, false));
}
}
}
}
renderer.Update();
renderer.Render();
var surface = View.GetSurface();
var bitmap = surface.GetBitmap();
var pixels = bitmap.LockPixels();
DataPointer dataPointer = new DataPointer((IntPtr)pixels, (int)bitmap.GetHeight() * (int)bitmap.GetWidth() * (int)bitmap.GetBpp());
texture.SetData(this.Game.GraphicsContext.CommandList, dataPointer);
sprite.Texture = texture;
imageElement.Source = sprite;
bitmap.UnlockPixels();
bitmap.Dispose();
void FireInputs(ComponentUI ui)
{
while (pendingInputEvents.MouseEvents.TryDequeue(out var e)) { View.FireMouseEvent(e); }
while (pendingInputEvents.ScrollEvents.TryDequeue(out var e)) { View.FireScrollEvent(e); }
while (pendingInputEvents.KeyboardEvents.TryDequeue(out var e)) { View.FireKeyEvent(e); }
}
void DoJavascriptTest()
{
javascriptTestComplete = true;
try
{
var result = View.EvaluateScript($"console.log('hi ' + (2+2)); 2+2;", out string exception);
Logger.LogInformation("Javascript returned: " + result);
if (!string.IsNullOrEmpty(exception))
{
Logger.LogError("Javascript returned exception: " + exception);
}
}
catch (Exception ex)
{
Logger.LogError(ex, "Javascript threw exception");
}
}
}
#endregion Methods
#region Classes
public class ComponentUI
{
public ConcurrentQueue<MouseEvent> MouseEvents { get; set; } = new ConcurrentQueue<MouseEvent>();
public ConcurrentQueue<KeyEvent> KeyboardEvents { get; set; } = new ConcurrentQueue<KeyEvent>();
public ConcurrentQueue<ScrollEvent> ScrollEvents { get; set; } = new ConcurrentQueue<ScrollEvent>();
}
#endregion
#region Logging
private LoggerLogMessageCallback LoggerCallback
=> new LoggerLogMessageCallback((logLevel, msg) =>
{
var microsoftLogLevel = logLevel switch
{
ImpromptuNinjas.UltralightSharp.Enums.LogLevel.Error => LogLevel.Error,
ImpromptuNinjas.UltralightSharp.Enums.LogLevel.Warning => LogLevel.Warning,
ImpromptuNinjas.UltralightSharp.Enums.LogLevel.Info => LogLevel.Information,
_ => LogLevel.Error,
};
Logger.Log(microsoftLogLevel, msg);
});
#endregion
}
}