Sandbox Mock

using CefSharp;
using CefSharp.WinForms;

using MoonSharp.Interpreter;

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Input;

using Timer = System.Windows.Forms.Timer;
using Cursor = System.Windows.Forms.Cursor;
using Gma.System.MouseKeyHook;

namespace Lua_To_HTML
{
    public partial class WebForm : Form
    {
        private Script script;
        private Timer timer = new Timer();
        private string tickPath;

        private string lastHTML = "";
        public WebForm(string startPath, string tickPath)
        {
            InitializeComponent();
            var settings = new CefSettings();
            Cef.Initialize(settings);
            Cef.EnableHighDPISupport();
            // So, this project is meant to be relatively simple.
            // Step 1, setup a web browser in a panel, something fast.
            // Step 2, start up a lua environment
            // Step 3, create a 'screen' object in lua that has an 'html' field
            // Step 4, load a start lua file and run it
            // Step 5, load a tick lua file and run it at specified tickrate
            // Step 6, after each tick, get our lua environment to return the contents of screen.html
            // Step 7, if the contents aren't the same as what's in the browser, change the browser contents with browser.DocumentText

            // So, I'd like to support more than just, a single object named screen
            // I have nmare's Element API.
            // This form should be the main form, but not the one for screens. It just lets you select things, reload, etc
            // When the program starts, we open a separate ScreenForm for each screen
            // Which means we need a way for the user to define what elements should exist

            // I guess that's init.lua

            this.Size = new Size(1024, 612);

            script = new Script();
            script.Options.DebugPrint = s => Console.WriteLine(s);


            // Find all of the DU lua files that we're stealing from nmare
            //var files = Directory.GetFiles("duElementAPI");
            //foreach (var file in files)
            //{
            //    loadLua(file);
            //}


            loadLua("init.lua"); // If we need to init things

            // Load the 'start' funcs
            loadLua(startPath);

            this.tickPath = tickPath;

            // And then setup a timer that runs at, let's say 60 fps
            // And it needs to run on the same thread as the form
            timer.Tick += Timer_Tick;
            timer.Interval = 1000 / 60;
            timer.Start();

            //browser.Dock = DockStyle.Fill;
            browser.Size = new Size(1024, 613);


            this.AutoSize = true;
            this.AutoSizeMode = AutoSizeMode.GrowAndShrink;


            var globalHook = Hook.GlobalEvents();
            globalHook.MouseDownExt += GlobalHook_MouseDownExt;
            globalHook.MouseUpExt += GlobalHook_MouseUpExt;
            globalHook.MouseMoveExt += GlobalHook_MouseMoveExt;

            this.FormClosing += WebForm_FormClosing;
        }

        private void WebForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            Cef.Shutdown(); // Avoid leaks
        }

        private void GlobalHook_MouseMoveExt(object sender, MouseEventExtArgs e)
        {
            var mousePos = browser.PointToClient(Cursor.Position);
            mousePos.X = Clamp(mousePos.X, 0, 1024);
            mousePos.Y = Clamp(mousePos.Y, 0, 612);
            string lua = $"screen.x = {mousePos.X} screen.y = {mousePos.Y}";

            script.DoString(lua);
        }

        private void GlobalHook_MouseUpExt(object sender, MouseEventExtArgs e)
        {
            script.DoString("screen.mouseState = 0");
        }

        private void GlobalHook_MouseDownExt(object sender, MouseEventExtArgs e)
        {
            script.DoString("screen.mouseState = 1");
        }


        private int Clamp(int a, int min, int max)
        {
            if (a.CompareTo(min) < 0) return min;
            else if (a.CompareTo(max) > 0) return max;
            else return a;
        }

        private void Timer_Tick(object sender, EventArgs e)
        {
            loadLua(tickPath);
            var htmlContent = script.Call(script.Globals["_getHtmlContent"]).CastToString();
            if (htmlContent != lastHTML)
            {
                htmlContent = "<body style=\"overflow: hidden; padding:0px; margin:0px;\">" + htmlContent + "</body>";
                browser.LoadHtml(htmlContent);

                lastHTML = htmlContent;
            }
        }

        private DynValue loadLua(string filepath)
        {
            return script.DoString(File.ReadAllText(filepath));
        }



    }
}