public HtmlHost(HtmlHostCreationConfig config)
{
//use default style sheet
#if DEBUG
if (!config.ValidateConfig())
{
throw new NotSupportedException();
}
#endif
_commonHtmlDoc = new HtmlDocument(this);
if (config.ActiveSheet != null)
{
_commonHtmlDoc.CssActiveSheet = this.BaseStylesheet = config.ActiveSheet;
}
else
{
//use default
_commonHtmlDoc.CssActiveSheet = this.BaseStylesheet =
LayoutFarm.WebDom.Parser.CssParserHelper.ParseStyleSheet(null,
LayoutFarm.Composers.CssDefaults.DefaultCssData,
true);
}
_rootgfx = config.RootGraphic;
_txtsx = config.TextService;
_svgCreator = new PaintLab.Svg.SvgCreator();
_mathMLCreator = new PaintLab.MathML.MathMLBoxTreeCreator();
}
public static HtmlBoxes.HtmlHost CreateHtmlHost(AppHost appHost,
EventHandler <ContentManagers.ImageRequestEventArgs> imageReqHandler,
EventHandler <ContentManagers.TextRequestEventArgs> textReq)
{
List <HtmlBoxes.HtmlVisualRoot> htmlVisualRootUpdateList = new List <HtmlBoxes.HtmlVisualRoot>();
var config = new HtmlBoxes.HtmlHostCreationConfig()
{
RootGraphic = appHost.RootGfx,
TextService = appHost.RootGfx.TextServices
};
//1.
HtmlBoxes.HtmlHost htmlhost = new HtmlBoxes.HtmlHost(config); //create html host with config
appHost.RootGfx.ClearingBeforeRender += (s, e) =>
{
//
htmlhost.ClearUpdateWaitingCssBoxes();
//
int j = htmlVisualRootUpdateList.Count;
for (int i = 0; i < j; ++i)
{
HtmlBoxes.HtmlVisualRoot htmlVisualRoot = htmlVisualRootUpdateList[i];
htmlVisualRoot.RefreshDomIfNeed();
htmlVisualRoot.IsInUpdateQueue = false;
}
htmlVisualRootUpdateList.Clear();
};
//2.
htmlhost.RegisterCssBoxGenerator(new LayoutFarm.CustomWidgets.MyCustomCssBoxGenerator(htmlhost));
//3.
htmlhost.AttachEssentailHandlers(imageReqHandler, textReq);
//4.
htmlhost.SetHtmlVisualRootUpdateHandler(htmlVisualRoot =>
{
if (!htmlVisualRoot.IsInUpdateQueue)
{
htmlVisualRoot.IsInUpdateQueue = true;
htmlVisualRootUpdateList.Add(htmlVisualRoot);
}
});
//-----------------------------------------------------------------
if (PaintLab.Svg.VgResourceIO.VgImgIOHandler == null)
{
var imgLoadingQ = new ContentManagers.ImageLoadingQueueManager();
imgLoadingQ.AskForImage += (s, e) =>
{
//check loading policy here
//
e.SetResultImage(LoadImage(e.ImagSource));
};
PaintLab.Svg.VgResourceIO.VgImgIOHandler = (LayoutFarm.ImageBinder binder, PaintLab.Svg.VgVisualElement imgRun, object requestFrom) =>
{
imgLoadingQ.AddRequestImage(binder);
};
}
return(htmlhost);
}
