PowerToys/Wox.Core/Plugin/PluginManager.cs

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C#
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using System;
using System.Collections.Generic;
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using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading;
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using Wox.Core.i18n;
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using Wox.Core.UI;
using Wox.Core.UserSettings;
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using Wox.Infrastructure.Exception;
using Wox.Infrastructure.Logger;
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using Wox.Plugin;
using Stopwatch = Wox.Infrastructure.Stopwatch;
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namespace Wox.Core.Plugin
{
/// <summary>
/// The entry for managing Wox plugins
/// </summary>
public static class PluginManager
{
public const string DirectoryName = "Plugins";
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private static IEnumerable<PluginPair> contextMenuPlugins;
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/// <summary>
/// Directories that will hold Wox plugin directory
/// </summary>
private static List<string> pluginDirectories = new List<string>();
public static IEnumerable<PluginPair> AllPlugins { get; private set; }
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public static List<PluginPair> GlobalPlugins { get; } = new List<PluginPair>();
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public static Dictionary<string, PluginPair> NonGlobalPlugins { get; set; } = new Dictionary<string, PluginPair>();
private static IEnumerable<PluginPair> InstantQueryPlugins { get; set; }
public static IPublicAPI API { private set; get; }
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public static string PluginDirectory
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{
get { return Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), DirectoryName); }
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}
private static void SetupPluginDirectories()
{
pluginDirectories.Add(PluginDirectory);
MakesurePluginDirectoriesExist();
}
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private static void MakesurePluginDirectoriesExist()
{
foreach (string pluginDirectory in pluginDirectories)
{
if (!Directory.Exists(pluginDirectory))
{
try
{
Directory.CreateDirectory(pluginDirectory);
}
catch (System.Exception e)
{
Log.Error(e);
}
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}
}
}
/// <summary>
/// Load and init all Wox plugins
/// </summary>
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public static void Init(IPublicAPI api)
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{
if (api == null) throw new WoxFatalException("api is null");
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SetupPluginDirectories();
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API = api;
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var metadatas = PluginConfig.Parse(pluginDirectories);
AllPlugins = (new CSharpPluginLoader().LoadPlugin(metadatas)).
Concat(new JsonRPCPluginLoader<PythonPlugin>().LoadPlugin(metadatas));
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//load plugin i18n languages
ResourceMerger.ApplyPluginLanguages();
foreach (PluginPair pluginPair in AllPlugins)
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{
PluginPair pair = pluginPair;
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ThreadPool.QueueUserWorkItem(o =>
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{
var milliseconds = Stopwatch.Normal($"Plugin init: {pair.Metadata.Name}", () =>
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{
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pair.Plugin.Init(new PluginInitContext
{
CurrentPluginMetadata = pair.Metadata,
Proxy = HttpProxy.Instance,
API = API
});
});
pair.InitTime = milliseconds;
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InternationalizationManager.Instance.UpdatePluginMetadataTranslations(pair);
});
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}
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ThreadPool.QueueUserWorkItem(o =>
{
InstantQueryPlugins = GetPluginsForInterface<IInstantQuery>();
contextMenuPlugins = GetPluginsForInterface<IContextMenu>();
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foreach (var plugin in AllPlugins)
{
if (IsGlobalPlugin(plugin.Metadata))
{
GlobalPlugins.Add(plugin);
}
else
{
foreach (string actionKeyword in plugin.Metadata.ActionKeywords)
{
NonGlobalPlugins[actionKeyword] = plugin;
}
}
}
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});
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}
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public static void InstallPlugin(string path)
{
PluginInstaller.Install(path);
}
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public static Query QueryInit(string text) //todo is that possible to move it into type Query?
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{
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// replace multiple white spaces with one white space
var terms = text.Split(new[] { Query.TermSeperater }, StringSplitOptions.RemoveEmptyEntries);
var rawQuery = string.Join(Query.TermSeperater, terms);
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var actionKeyword = string.Empty;
var search = rawQuery;
List<string> actionParameters = terms.ToList();
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if (terms.Length == 0) return null;
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if (NonGlobalPlugins.ContainsKey(terms[0]))
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{
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actionKeyword = terms[0];
actionParameters = terms.Skip(1).ToList();
search = string.Join(Query.TermSeperater, actionParameters.ToArray());
}
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return new Query
{
Terms = terms,
RawQuery = rawQuery,
ActionKeyword = actionKeyword,
Search = search,
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// Obsolete value initialisation
ActionName = actionKeyword,
ActionParameters = actionParameters
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};
}
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public static void QueryForAllPlugins(Query query)
{
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var pluginPairs = NonGlobalPlugins.ContainsKey(query.ActionKeyword) ?
new List<PluginPair> { NonGlobalPlugins[query.ActionKeyword] } : GlobalPlugins;
foreach (var plugin in pluginPairs)
{
var customizedPluginConfig = UserSettingStorage.Instance.
CustomizedPluginConfigs.FirstOrDefault(o => o.ID == plugin.Metadata.ID);
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if (customizedPluginConfig != null && customizedPluginConfig.Disabled) continue;
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if (IsInstantQueryPlugin(plugin))
{
Stopwatch.Normal($"Instant QueryForPlugin for {plugin.Metadata.Name}", () =>
{
QueryForPlugin(plugin, query);
});
}
else
{
ThreadPool.QueueUserWorkItem(state =>
{
Stopwatch.Normal($"Normal QueryForPlugin for {plugin.Metadata.Name}", () =>
{
QueryForPlugin(plugin, query);
});
});
}
}
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}
private static void QueryForPlugin(PluginPair pair, Query query)
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{
try
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{
List<Result> results = new List<Result>();
var milliseconds = Stopwatch.Normal($"Plugin.Query cost for {pair.Metadata.Name}", () =>
{
results = pair.Plugin.Query(query) ?? results;
results.ForEach(o => { o.PluginID = pair.Metadata.ID; });
});
pair.QueryCount += 1;
pair.AvgQueryTime = pair.QueryCount == 1 ? milliseconds : (pair.AvgQueryTime + milliseconds) / 2;
API.PushResults(query, pair.Metadata, results);
}
catch (System.Exception e)
{
throw new WoxPluginException(pair.Metadata.Name, $"QueryForPlugin failed", e);
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}
}
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private static bool IsGlobalPlugin(PluginMetadata metadata)
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{
return metadata.ActionKeywords.Contains(Query.GlobalPluginWildcardSign);
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}
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private static bool IsInstantQueryPlugin(PluginPair plugin)
{
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//any plugin that takes more than 200ms for AvgQueryTime won't be treated as IInstantQuery plugin anymore.
return plugin.AvgQueryTime < 200 &&
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plugin.Plugin is IInstantQuery &&
InstantQueryPlugins.Any(p => p.Metadata.ID == plugin.Metadata.ID);
}
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/// <summary>
/// get specified plugin, return null if not found
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public static PluginPair GetPluginForId(string id)
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{
return AllPlugins.FirstOrDefault(o => o.Metadata.ID == id);
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}
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public static IEnumerable<PluginPair> GetPluginsForInterface<T>() where T : IFeatures
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{
return AllPlugins.Where(p => p.Plugin is T);
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}
public static List<Result> GetContextMenusForPlugin(Result result)
{
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var pluginPair = contextMenuPlugins.FirstOrDefault(o => o.Metadata.ID == result.PluginID);
var plugin = (IContextMenu)pluginPair?.Plugin;
if (plugin != null)
{
try
{
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return plugin.LoadContextMenus(result);
}
catch (System.Exception e)
{
Log.Error(new WoxPluginException(pluginPair.Metadata.Name, $"Couldn't load plugin context menus", e));
}
}
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return new List<Result>();
}
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}
}