public override void DrawRect(CGRect dirtyRect)
{
if (!LiteHtmlContainer.Document.HasRendered)
{
return;
}
var gfxc = NSGraphicsContext.CurrentContext.GraphicsPort;
gfxc.SaveState();
var point = ViewportPoint;
gfxc.TranslateCTM(point.X, point.Y);
LiteHtmlContainer.CheckViewportChange();
LiteHtmlContainer.Context = gfxc;
LiteHtmlContainer.Draw();
LiteHtmlContainer.Context = null;
gfxc.RestoreState();
if (Drawn != null)
{
Drawn();
}
}
public void SetViewport(CGRect viewport)
{
if (LiteHtmlContainer.SetViewport(viewport.Location.ToLiteHtmlPoint(), viewport.Size.ToLiteHtmlSize()))
{
SetNeedsDisplayInRect(ViewportRect);
}
}
public void LoadHtml(string html)
{
RemoveAllViewElements();
LiteHtmlContainer.Document.CreateFromString(html);
LiteHtmlContainer.CheckViewportChange(forceRender: true);
SetNeedsDisplayInRect(ViewportRect);
}
// If true then a redraw is needed
bool CheckViewportChange(bool forceRender = false)
{
if (forceRender ||
(int)LiteHtmlContainer.ContextSize.Width != (int)Viewport.Size.Width ||
(int)LiteHtmlContainer.ContextSize.Height != (int)Viewport.Size.Height)
{
LiteHtmlContainer.ContextSize = Viewport.Size;
LiteHtmlContainer.ScrollOffset = Viewport.Location.ToLiteHtmlPoint();
LiteHtmlContainer.Document.OnMediaChanged();
LiteHtmlContainer.Render();
return(true);
}
if ((int)LiteHtmlContainer.ScrollOffset.Y != (int)Viewport.Location.Y ||
(int)LiteHtmlContainer.ScrollOffset.X != (int)Viewport.Location.X)
{
LiteHtmlContainer.ScrollOffset = Viewport.Location.ToLiteHtmlPoint();
return(true);
}
return(false);
}
void Btn_Activated(object sender, EventArgs e)
{
var btn = (LiteHtmlNSButton)sender;
LiteHtmlContainer.TriggerAnchorClicked(btn.Href);
}
