// Copyright © 2020 The CefSharp Authors. All rights reserved.

//

// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.

using System;

using System.IO;

using System.Reflection;

using System.Runtime.CompilerServices;

using System.Runtime.InteropServices;

namespace CefSharp

{

/// <summary>

/// CLR Module Initializer

/// Used to load libcef.dll if required

/// </summary>

public static class Initializer

{

//TODO: Internal debugging only for now, needs improving if users are going to

//get meaningful data from this.

internal static IntPtr? LibCefHandle { get; private set; }

internal static bool LibCefLoaded { get; private set; }

internal static string LibCefPath { get; private set; }

internal static string BrowserSubProcessPath { get; private set; }

internal static string BrowserSubProcessCorePath { get; private set; }

[ModuleInitializer]

internal static void ModuleInitializer()

{

var currentFolder = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);

var libCefPath = Path.Combine(currentFolder, "libcef.dll");

if (File.Exists(libCefPath))

{

//We didn't load CEF, it was already next to our calling assembly, the

//framework should load it correctly on it's own

LibCefPath = libCefPath;

LibCefLoaded = false;

}

else

{

//TODO: This will need changing if we support ARM64

var arch = Environment.Is64BitProcess ? "x64" : "x86";

var archFolder = $"runtimes\\win-{arch}\\native";

libCefPath = Path.Combine(currentFolder, archFolder, "libcef.dll");

if (File.Exists(libCefPath))

{

LibCefLoaded = NativeLibrary.TryLoad(libCefPath, out IntPtr handle);

if (LibCefLoaded)

{

BrowserSubProcessPath = Path.Combine(currentFolder, archFolder, "CefSharp.BrowserSubprocess.exe");

BrowserSubProcessCorePath = Path.Combine(currentFolder, archFolder, "CefSharp.BrowserSubprocess.Core.dll");

LibCefPath = libCefPath;

LibCefHandle = handle;

}

}

else

{

LibCefPath = libCefPath;

LibCefLoaded = false;

}

}

}

}

}