Ooui-tws-port/Ooui.AspNetCore/ElementResult.cs

57 lines
2.1 KiB
C#

using System;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
namespace Ooui.AspNetCore
{
public class ElementResult : ActionResult
{
readonly Element element;
readonly string title;
public ElementResult (Element element, string title = "")
{
this.element = element;
this.title = title;
}
public override async Task ExecuteResultAsync (ActionContext context)
{
var response = context.HttpContext.Response;
response.StatusCode = 200;
response.ContentType = "text/html; charset=utf-8";
if (element.WantsFullScreen) {
element.Style.Width = GetCookieDouble (context.HttpContext.Request.Cookies, "oouiWindowWidth", 32, 640, 10000);
element.Style.Height = GetCookieDouble (context.HttpContext.Request.Cookies, "oouiWindowHeight", 24, 480, 10000);
}
var sessionId = WebSocketHandler.BeginSession (context.HttpContext, element);
var initialHtml = element.OuterHtml;
var html = UI.RenderTemplate (WebSocketHandler.WebSocketPath + "?id=" + sessionId, title: title, initialHtml: initialHtml);
var htmlBytes = Encoding.UTF8.GetBytes (html);
response.ContentLength = htmlBytes.Length;
using (var s = response.Body) {
await s.WriteAsync (htmlBytes, 0, htmlBytes.Length).ConfigureAwait (false);
}
}
static double GetCookieDouble (IRequestCookieCollection cookies, string key, double min, double def, double max)
{
if (cookies.TryGetValue (key, out var s)) {
if (double.TryParse (s, out var d)) {
if (d < min) return min;
if (d > max) return max;
return d;
}
return def;
}
else {
return def;
}
}
}
}