Move part of the input module to Cryville.Input.

Assets/Plugins/Cryville.Input.Unity.Android/AndroidInputHandler.cs

@@ -0,0 +1,67 @@
+using System;
+using UnityEngine;
+
+namespace Cryville.Input.Unity.Android {
+	public abstract class AndroidInputHandler<TSelf> : InputHandler where TSelf : AndroidInputHandler<TSelf> {
+		protected static TSelf Instance { get; private set; }
+
+		readonly IntPtr _t_T;
+		static readonly jvalue[] _p_void = new jvalue[0];
+		readonly IntPtr _i_T;
+
+		readonly IntPtr _m_T_activate;
+		readonly IntPtr _m_T_deactivate;
+
+		bool _activated;
+
+		public AndroidInputHandler(string className) {
+			if (Instance != null)
+				throw new InvalidOperationException("AndroidInputHandler already created");
+			if (Environment.OSVersion.Platform != PlatformID.Unix)
+				throw new NotSupportedException("Android input is not supported on this device");
+			Instance = (TSelf)this;
+
+			JavaStaticMethods.Init();
+
+			var _lt_T = AndroidJNI.FindClass(className);
+			_t_T = AndroidJNI.NewGlobalRef(_lt_T);
+			AndroidJNI.DeleteLocalRef(_lt_T);
+
+			var _m_T_init = AndroidJNI.GetMethodID(_t_T, "<init>", "()V");
+			var _li_T = AndroidJNI.NewObject(_t_T, _m_T_init, _p_void);
+			_i_T = AndroidJNI.NewGlobalRef(_li_T);
+			AndroidJNI.DeleteLocalRef(_li_T);
+
+			var _m_T_getId = AndroidJNI.GetMethodID(_t_T, "getId", "()I");
+			_m_T_activate = AndroidJNI.GetMethodID(_t_T, "activate", "()V");
+			_m_T_deactivate = AndroidJNI.GetMethodID(_t_T, "deactivate", "()V");
+
+			NativeMethods.AndroidInputProxy_RegisterCallback(
+				AndroidJNI.CallIntMethod(_i_T, _m_T_getId, _p_void),
+				Callback
+			);
+		}
+
+		protected override void Activate() {
+			if (_activated) return;
+			_activated = true;
+			AndroidJNI.CallVoidMethod(_i_T, _m_T_activate, _p_void);
+		}
+
+		protected override void Deactivate() {
+			if (!_activated) return;
+			_activated = false;
+			AndroidJNI.CallVoidMethod(_i_T, _m_T_deactivate, _p_void);
+		}
+
+		public override void Dispose(bool disposing) {
+			if (disposing) {
+				Deactivate();
+				AndroidJNI.DeleteGlobalRef(_i_T);
+				AndroidJNI.DeleteGlobalRef(_t_T);
+			}
+		}
+
+		private protected abstract AndroidInputProxy_Callback Callback { get; }
+	}
+}