protected override void OnPopupShow(CefBrowser browser, bool show)
{
_isPopupShown = show;
if (show == false)
{
_popupRect = null;
if (_cachedPopupImage != null)
{
_cachedPopupImage.Dispose();
_cachedPopupImage = null;
GC.Collect();
}
}
base.OnPopupShow(browser, show);
}
protected override void OnPaint(CefBrowser browser, CefPaintElementType type, CefRectangle[] dirtyRects, IntPtr buffer, int width, int height)
{
if (width <= 0 || height <= 0)
{
return;
}
CreateDeviceResource();
_renderTarget.BeginDraw();
if (type == CefPaintElementType.View)
{
var bmp = _renderTarget.CreateBitmap(new Vortice.Mathematics.Size(width, height), buffer, width * 4, new BitmapProperties(new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)));
if (!_isPopupShown)
{
_renderTarget.Clear(Color.Transparent);
}
_renderTarget.DrawBitmap(bmp);
bmp.Dispose();
}
else if (type == CefPaintElementType.Popup)
{
var bmp = _renderTarget.CreateBitmap(new Vortice.Mathematics.Size(width, height), buffer, width * 4, new BitmapProperties(new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)));
if (_cachedPopupImage != null)
{
_cachedPopupImage.Dispose();
_cachedPopupImage = null;
GC.Collect();
}
_cachedPopupImage = _renderTarget.CreateSharedBitmap(bmp, new BitmapProperties
{
PixelFormat = new PixelFormat(Vortice.DXGI.Format.B8G8R8A8_UNorm, AlphaMode.Premultiplied)
});
bmp.Dispose();
}
//var layer = _renderTarget.CreateLayer();
//var layerParameter = new LayerParameters
//{
// ContentBounds = new Vortice.RawRectF(0, 0, width, height),
// Opacity = 1
//};
//_renderTarget.PushLayer(ref layerParameter, layer);
if (_cachedPopupImage != null && _isPopupShown && _popupRect.HasValue)
{
var scaleFactor = DpiHelper.GetScaleFactorForCurrentWindow(_owner.HostWindowHandle);
var x = _popupRect.Value.X * scaleFactor;
var y = _popupRect.Value.Y * scaleFactor;
var popupWidth = _popupRect.Value.Width * scaleFactor;
var popupHeight = _popupRect.Value.Height * scaleFactor;
var right = x + popupWidth;
var bottom = y + popupHeight;
_renderTarget.DrawBitmap(_cachedPopupImage, new Vortice.RawRectF(x, y, right, bottom), 1f, BitmapInterpolationMode.Linear, new Vortice.RawRectF(0, 0, popupWidth, popupHeight));
}
//_renderTarget.PopLayer();
//layer.Dispose();
if (_renderTarget.EndDraw().Failure)
{
DiscardDeviceResources();
}
}