private void Reset()
{
FDocumentSizeIsValid = false;
FDomIsValid = false;
FErrorText = string.Empty;
if (IsAutoSize)
{
FBrowserHost.WasResized();
}
}
protected virtual void OnResized(Vector2I oldSize, Vector2I newSize)
{
if (newSize.X > 0 && newSize.Y > 0)
{
// If the window has already been created, just resize it
browserHost?.WasResized();
}
}
//调整其子界面的大小
public void ResizeWindow(uint width, uint height)
{
lock (BitmapLock)
{
//触发host的resize
_windowsHeight = height;
_windowsWidth = width;
if (_host != null)
{
_host.WasResized();
}
//同时重建渲染管线
if (_screenPipeline != null)
{
_screenPipeline.Dispose();
}
if (_textureView != null)
{
_textureView.Dispose();
}
if (_texture != null)
{
_texture.Dispose();
}
if (_screenResourceSet != null)
{
_screenResourceSet.Dispose();
}
_texture = _gd.ResourceFactory.CreateTexture(TextureDescription.Texture2D((uint)_windowsWidth, (uint)_windowsHeight, 1, 1, PixelFormat.B8_G8_R8_A8_UNorm, TextureUsage.Sampled));
_textureView = _gd.ResourceFactory.CreateTextureView(_texture);
//重建resourceSet
_screenResourceSet = _gd.ResourceFactory.CreateResourceSet(new ResourceSetDescription(
_screenResourceLayout,
_textureView,
_gd.Aniso4xSampler
));
var rasterizer = RasterizerStateDescription.Default;
rasterizer.FillMode = PolygonFillMode.Solid;
rasterizer.FrontFace = FrontFace.CounterClockwise;
rasterizer.CullMode = FaceCullMode.Front;
_screenPipeline = _gd.ResourceFactory.CreateGraphicsPipeline(new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.DepthOnlyLessEqual,
rasterizer,
PrimitiveTopology.TriangleList,
_shaderset,
//共享View和prj的buffer
new ResourceLayout[] { _screenResourceLayout },
_gd.MainSwapchain.Framebuffer.OutputDescription));
}
}
protected virtual void OnResized(Vec2I oldSize, Vec2I newSize)
{
//_logger.Debug("BrowserResize. Old H{0}xW{1}; New H{2}xW{3}.", _browserHeight, _browserWidth, newHeight, newWidth);
if (newSize.X > 0 && newSize.Y > 0)
{
// If the window has already been created, just resize it
if (browserHost != null)
{
//_logger.Trace("CefBrowserHost::WasResized to {0}x{1}.", newWidth, newHeight);
browserHost.WasResized();
}
}
}
protected override Size ArrangeOverride(Size arrangeBounds)
{
var size = base.ArrangeOverride(arrangeBounds);
if (_browserPageImage != null)
{
var newWidth = (int)size.Width;
var newHeight = (int)size.Height;
_logger.Debug("BrowserResize. Old H{0}xW{1}; New H{2}xW{3}.", _browserHeight, _browserWidth, newHeight, newWidth);
if (newWidth > 0 && newHeight > 0)
{
if (!_created)
{
AttachEventHandlers(this); // TODO: ?
// Create the bitmap that holds the rendered website bitmap
_browserWidth = newWidth;
_browserHeight = newHeight;
_browserSizeChanged = true;
// Find the window that's hosting us
Window parentWnd = FindParentOfType <Window>(this);
if (parentWnd != null)
{
IntPtr hParentWnd = new WindowInteropHelper(parentWnd).Handle;
var windowInfo = CefWindowInfo.Create();
windowInfo.SetAsWindowless(hParentWnd, false);
var settings = new CefBrowserSettings();
_cefClient = new WpfCefClient(this);
// This is the first time the window is being rendered, so create it.
CefBrowserHost.CreateBrowser(windowInfo, _cefClient, settings, !string.IsNullOrEmpty(StartUrl) ? StartUrl : "about:blank");
_created = true;
}
}
else
{
// Only update the bitmap if the size has changed
if (_browserPageBitmap == null || (_browserPageBitmap.Width != newWidth || _browserPageBitmap.Height != newHeight))
{
_browserWidth = newWidth;
_browserHeight = newHeight;
_browserSizeChanged = true;
// If the window has already been created, just resize it
if (_browserHost != null)
{
_logger.Trace("CefBrowserHost::WasResized to {0}x{1}.", newWidth, newHeight);
_browserHost.WasResized();
}
}
}
}
}
return(size);
}
