using Dalamud.Plugin; using System; using System.Collections.Generic; using System.Reflection; using Dalamud.Plugin.Services; namespace Workshoppa.External; /// /// Originally part of ECommons by NightmareXIV. /// /// https://github.com/NightmareXIV/ECommons/blob/master/ECommons/Reflection/DalamudReflector.cs /// internal sealed class DalamudReflector : IDisposable { private readonly DalamudPluginInterface _pluginInterface; private readonly IFramework _framework; private readonly IPluginLog _pluginLog; private readonly Dictionary _pluginCache = new(); private bool _pluginsChanged = false; public DalamudReflector(DalamudPluginInterface pluginInterface, IFramework framework, IPluginLog pluginLog) { _pluginInterface = pluginInterface; _framework = framework; _pluginLog = pluginLog; var pm = GetPluginManager(); pm.GetType().GetEvent("OnInstalledPluginsChanged")!.AddEventHandler(pm, OnInstalledPluginsChanged); _framework.Update += FrameworkUpdate; } public void Dispose() { _framework.Update -= FrameworkUpdate; var pm = GetPluginManager(); pm.GetType().GetEvent("OnInstalledPluginsChanged")!.RemoveEventHandler(pm, OnInstalledPluginsChanged); } private void FrameworkUpdate(IFramework framework) { if (_pluginsChanged) { _pluginsChanged = false; _pluginCache.Clear(); } } private object GetPluginManager() { return _pluginInterface.GetType().Assembly.GetType("Dalamud.Service`1", true)! .MakeGenericType( _pluginInterface.GetType().Assembly.GetType("Dalamud.Plugin.Internal.PluginManager", true)!) .GetMethod("Get")!.Invoke(null, BindingFlags.Default, null, Array.Empty(), null)!; } public bool TryGetDalamudPlugin(string internalName, out IDalamudPlugin? instance, bool suppressErrors = false, bool ignoreCache = false) { if (!ignoreCache && _pluginCache.TryGetValue(internalName, out instance)) { return true; } try { var pluginManager = GetPluginManager(); var installedPlugins = (System.Collections.IList)pluginManager.GetType().GetProperty("InstalledPlugins")!.GetValue( pluginManager)!; foreach (var t in installedPlugins) { if ((string?)t.GetType().GetProperty("Name")!.GetValue(t) == internalName) { var type = t.GetType().Name == "LocalDevPlugin" ? t.GetType().BaseType : t.GetType(); var plugin = (IDalamudPlugin?)type! .GetField("instance", BindingFlags.NonPublic | BindingFlags.Instance)!.GetValue(t); if (plugin == null) { _pluginLog.Warning($"[DalamudReflector] Found requested plugin {internalName} but it was null"); } else { instance = plugin; _pluginCache[internalName] = plugin; return true; } } } instance = null; return false; } catch (Exception e) { if (!suppressErrors) { _pluginLog.Error(e, $"Can't find {internalName} plugin: {e.Message}"); } instance = null; return false; } } private void OnInstalledPluginsChanged() { _pluginLog.Verbose("Installed plugins changed event fired"); _pluginsChanged = true; } }