PowerToys/WinAlfred/Commands/PluginCommand.cs

78 lines
2.6 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using Python.Runtime;
using WinAlfred.Helper;
using WinAlfred.Plugin;
using WinAlfred.PluginLoader;
namespace WinAlfred.Commands
{
public class PluginCommand : BaseCommand
{
private string currentPythonModulePath = string.Empty;
private IntPtr GIL;
public PluginCommand(MainWindow mainWindow)
: base(mainWindow)
{
}
public override void Dispatch(Query q)
{
PluginPair thirdPlugin = Plugins.AllPlugins.FirstOrDefault(o => o.Metadata.ActionKeyword == q.ActionName);
if (thirdPlugin != null && !string.IsNullOrEmpty(thirdPlugin.Metadata.ActionKeyword))
{
if (thirdPlugin.Metadata.Language == AllowedLanguage.Python)
{
SwitchPythonEnv(thirdPlugin);
}
ThreadPool.QueueUserWorkItem(t =>
{
try
{
List<Result> r = thirdPlugin.Plugin.Query(q);
r.ForEach(o =>
{
o.PluginDirectory = thirdPlugin.Metadata.PluginDirecotry;
o.OriginQuery = q;
});
UpdateResultView(r);
}
catch (Exception queryException)
{
Log.Error(string.Format("Plugin {0} query failed: {1}", thirdPlugin.Metadata.Name,
queryException.Message));
#if (DEBUG)
{
throw;
}
#endif
}
});
}
}
private void SwitchPythonEnv(PluginPair thirdPlugin)
{
if (currentPythonModulePath != thirdPlugin.Metadata.PluginDirecotry)
{
//this must initial in main thread
currentPythonModulePath = thirdPlugin.Metadata.PluginDirecotry;
if (GIL != IntPtr.Zero)
{
Runtime.PyEval_RestoreThread(GIL);
PythonEngine.Shutdown();
}
PythonEngine.Initialize();
IntPtr pyStrPtr = Runtime.PyString_FromString(thirdPlugin.Metadata.PluginDirecotry);
IntPtr SysDotPath = Runtime.PySys_GetObject("path");
Runtime.PyList_Append(SysDotPath, pyStrPtr);
GIL = PythonEngine.BeginAllowThreads();
}
}
}
}