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.Net Core - Update example to self host the BrowserSubProcess

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Eliminates the requirements for .Net 4.5.2, the application exe is used as the browsersubprocess.
Additional manual import of CefSharp.BrowserSubProcess.Core is required see csproj file for example

TODO: OffScreen version is crashing on exit so it's been updated, it just isn't using itself as the BrowserSubProcess
This commit is contained in:
amaitland 2020-02-10 12:20:12 +10:00
parent 2e80bd8db0
commit 898eb755c6
7 changed files with 163 additions and 2 deletions
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21
CefSharp.MinimalExample.OffScreen/CefSharp.MinimalExample.OffScreen.netcore.csproj
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@ -27,4 +27,25 @@
<Private>true</Private>
</Reference>
</ItemGroup>
<!-- Include CefSharp.BrowserSubprocess.Core so we can selfhost the BrowserSubProcess using our exe -->
<Choose>
<When Condition="'$(PlatformTarget)' == 'x64'">
<ItemGroup>
<Reference Include="CefSharp.BrowserSubprocess.Core">
<HintPath>$(CefSharpBrowserProcessCore64)</HintPath>
<Private>true</Private>
</Reference>
</ItemGroup>
</When>
<!-- x86, Win32 and AnyCPU -->
<Otherwise>
<ItemGroup>
<Reference Include="CefSharp.BrowserSubprocess.Core">
<HintPath>$(CefSharpBrowserProcessCore32)</HintPath>
<Private>true</Private>
</Reference>
</ItemGroup>
</Otherwise>
</Choose>
</Project>

26
CefSharp.MinimalExample.OffScreen/Program.cs
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@ -15,7 +15,7 @@ namespace CefSharp.MinimalExample.OffScreen
{
private static ChromiumWebBrowser browser;
public static void Main(string[] args)
public static int Main(string[] args)
{
const string testUrl = "https://www.google.com/";
@ -23,12 +23,34 @@ namespace CefSharp.MinimalExample.OffScreen
Console.WriteLine("You may see Chromium debugging output, please wait...");
Console.WriteLine();
#if NETCOREAPP
//We are using our current exe as the BrowserSubProcess
//Multiple instances will be spawned to handle all the
//Chromium proceses, render, gpu, network, plugin, etc.
var subProcessExe = new CefSharp.BrowserSubprocess.BrowserSubprocessExecutable();
var result = subProcessExe.Main(args);
if (result > 0)
{
return result;
}
#endif
var settings = new CefSettings()
{
//By default CefSharp will use an in-memory cache, you need to specify a Cache Folder to persist data
CachePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "CefSharp\\Cache")
};
#if NETCOREAPP
//We use our Applications exe as the BrowserSubProcess, multiple copies
//will be spawned
//TODO: The OffScreen implementation is crashing on Exit (WPF/WinForms are working fine).
//So for now this is commented out and the old .Net CefSharp.BrowserSubProcess.exe
//is used.
//var exePath = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;
//settings.BrowserSubprocessPath = exePath;
#endif
//Perform dependency check to make sure all relevant resources are in our output directory.
Cef.Initialize(settings, performDependencyCheck: true, browserProcessHandler: null);
@ -45,6 +67,8 @@ namespace CefSharp.MinimalExample.OffScreen
// Clean up Chromium objects. You need to call this in your application otherwise
// you will get a crash when closing.
Cef.Shutdown();
return 0;
}
private static void BrowserLoadingStateChanged(object sender, LoadingStateChangedEventArgs e)

21
CefSharp.MinimalExample.WinForms/CefSharp.MinimalExample.WinForms.netcore.csproj
View File

@ -27,4 +27,25 @@
<Private>true</Private>
</Reference>
</ItemGroup>
<!-- Include CefSharp.BrowserSubprocess.Core so we can selfhost the BrowserSubProcess using our exe -->
<Choose>
<When Condition="'$(PlatformTarget)' == 'x64'">
<ItemGroup>
<Reference Include="CefSharp.BrowserSubprocess.Core">
<HintPath>$(CefSharpBrowserProcessCore64)</HintPath>
<Private>true</Private>
</Reference>
</ItemGroup>
</When>
<!-- x86, Win32 and AnyCPU -->
<Otherwise>
<ItemGroup>
<Reference Include="CefSharp.BrowserSubprocess.Core">
<HintPath>$(CefSharpBrowserProcessCore32)</HintPath>
<Private>true</Private>
</Reference>
</ItemGroup>
</Otherwise>
</Choose>
</Project>

23
CefSharp.MinimalExample.WinForms/Program.cs
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@ -12,17 +12,36 @@ namespace CefSharp.MinimalExample.WinForms
public class Program
{
[STAThread]
public static void Main()
public static int Main(string[] args)
{
//For Windows 7 and above, best to include relevant app.manifest entries as well
Cef.EnableHighDPISupport();
#if NETCOREAPP
//We are using our current exe as the BrowserSubProcess
//Multiple instances will be spawned to handle all the
//Chromium proceses, render, gpu, network, plugin, etc.
var subProcessExe = new CefSharp.BrowserSubprocess.BrowserSubprocessExecutable();
var result = subProcessExe.Main(args);
if (result > 0)
{
return result;
}
#endif
var settings = new CefSettings()
{
//By default CefSharp will use an in-memory cache, you need to specify a Cache Folder to persist data
CachePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "CefSharp\\Cache")
};
#if NETCOREAPP
//We use our Applications exe as the BrowserSubProcess, multiple copies
//will be spawned
var exePath = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;
settings.BrowserSubprocessPath = exePath;
#endif
//Example of setting a command line argument
//Enables WebRTC
settings.CefCommandLineArgs.Add("enable-media-stream", "1");
@ -32,6 +51,8 @@ namespace CefSharp.MinimalExample.WinForms
var browser = new BrowserForm();
Application.Run(browser);
return 0;
}
}
}

2
CefSharp.MinimalExample.Wpf/App.xaml.cs
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@ -9,6 +9,7 @@ namespace CefSharp.MinimalExample.Wpf
{
public App()
{
#if !NETCOREAPP
var settings = new CefSettings()
{
//By default CefSharp will use an in-memory cache, you need to specify a Cache Folder to persist data
@ -21,6 +22,7 @@ namespace CefSharp.MinimalExample.Wpf
//Perform dependency check to make sure all relevant resources are in our output directory.
Cef.Initialize(settings, performDependencyCheck: true, browserProcessHandler: null);
#endif
}
}
}

22
CefSharp.MinimalExample.Wpf/CefSharp.MinimalExample.Wpf.netcore.csproj
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@ -8,6 +8,7 @@
<ApplicationManifest>app.manifest</ApplicationManifest>
<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
<Platforms>x86;x64</Platforms>
<StartupObject>CefSharp.MinimalExample.Wpf.Program</StartupObject>
</PropertyGroup>
<ItemGroup>
@ -29,4 +30,25 @@
<Private>true</Private>
</Reference>
</ItemGroup>
<!-- Include CefSharp.BrowserSubprocess.Core so we can selfhost the BrowserSubProcess using our exe -->
<Choose>
<When Condition="'$(PlatformTarget)' == 'x64'">
<ItemGroup>
<Reference Include="CefSharp.BrowserSubprocess.Core">
<HintPath>$(CefSharpBrowserProcessCore64)</HintPath>
<Private>true</Private>
</Reference>
</ItemGroup>
</When>
<!-- x86, Win32 and AnyCPU -->
<Otherwise>
<ItemGroup>
<Reference Include="CefSharp.BrowserSubprocess.Core">
<HintPath>$(CefSharpBrowserProcessCore32)</HintPath>
<Private>true</Private>
</Reference>
</ItemGroup>
</Otherwise>
</Choose>
</Project>

50
CefSharp.MinimalExample.Wpf/Program.netcore.cs Normal file
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@ -0,0 +1,50 @@
using CefSharp.Wpf;
using System;
using System.IO;
namespace CefSharp.MinimalExample.Wpf
{
public static class Program
{
/// <summary>
/// Application Entry Point.
/// </summary>
[STAThread]
public static int Main(string[] args)
{
//For Windows 7 and above, app.manifest entries will take precedences of this call
Cef.EnableHighDPISupport();
//We are using our current exe as the BrowserSubProcess
//Multiple instances will be spawned to handle all the
//Chromium proceses, render, gpu, network, plugin, etc.
var subProcessExe = new CefSharp.BrowserSubprocess.BrowserSubprocessExecutable();
var result = subProcessExe.Main(args);
if (result > 0)
{
return result;
}
//We use our current exe as the BrowserSubProcess
var exePath = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;
var settings = new CefSettings()
{
//By default CefSharp will use an in-memory cache, you need to specify a Cache Folder to persist data
CachePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "CefSharp\\Cache"),
BrowserSubprocessPath = exePath
};
//Example of setting a command line argument
//Enables WebRTC
settings.CefCommandLineArgs.Add("enable-media-stream");
//Perform dependency check to make sure all relevant resources are in our output directory.
Cef.Initialize(settings, performDependencyCheck: true, browserProcessHandler: null);
var app = new App();
app.InitializeComponent();
return app.Run();
}
}
}