protected override void OnAfterRender(bool firstRender)
{
if (firstRender)
{
Threading.Dispatcher.UIThread.Post(async() =>
{
_inputHelper = await InputHelperInterop.ImportAsync(Js, _inputElement);
_canvasHelper = await InputHelperInterop.ImportAsync(Js, _htmlCanvas);
_inputHelper.Hide();
_canvasHelper.SetCursor("default");
_topLevelImpl.SetCssCursor = x =>
{
_inputHelper.SetCursor(x); //macOS
_canvasHelper.SetCursor(x); //windows
};
Console.WriteLine("starting html canvas setup");
_interop = await SKHtmlCanvasInterop.ImportAsync(Js, _htmlCanvas, OnRenderFrame);
Console.WriteLine("Interop created");
_jsGlInfo = _interop.InitGL();
Console.WriteLine("jsglinfo created - init gl");
_sizeWatcher = await SizeWatcherInterop.ImportAsync(Js, _htmlCanvas, OnSizeChanged);
_dpiWatcher = await DpiWatcherInterop.ImportAsync(Js, OnDpiChanged);
Console.WriteLine("watchers created.");
// create the SkiaSharp context
if (_context == null)
{
Console.WriteLine("create glcontext");
_glInterface = GRGlInterface.Create();
_context = GRContext.CreateGl(_glInterface);
var options = AvaloniaLocator.Current.GetService <SkiaOptions>();
// bump the default resource cache limit
_context.SetResourceCacheLimit(options?.MaxGpuResourceSizeBytes ?? 32 * 1024 * 1024);
Console.WriteLine("glcontext created and resource limit set");
}
_topLevelImpl.SetSurface(_context, _jsGlInfo, ColorType,
new PixelSize((int)_canvasSize.Width, (int)_canvasSize.Height), _dpi);
_initialised = true;
_topLevel.Prepare();
_topLevel.Renderer.Start();
Invalidate();
});
}
}
public void SetActive(bool active)
{
_inputHelper.Clear();
if (active)
{
_inputHelper.Show();
_inputHelper.Focus();
}
else
{
_inputHelper.Hide();
}
}