1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.internal.os; 18 19 import android.content.Context; 20 import android.os.Handler; 21 import android.os.Looper; 22 import android.os.Message; 23 24 public class HandlerCaller { 25 26 public final Context mContext; 27 28 final Looper mMainLooper; 29 final Handler mH; 30 31 final Callback mCallback; 32 33 class MyHandler extends Handler { 34 MyHandler(Looper looper, boolean async) { 35 super(looper, null, async); 36 } 37 38 @Override 39 public void handleMessage(Message msg) { 40 mCallback.executeMessage(msg); 41 } 42 } 43 44 public interface Callback { 45 public void executeMessage(Message msg); 46 } 47 48 public HandlerCaller(Context context, Looper looper, Callback callback, 49 boolean asyncHandler) { 50 mContext = context; 51 mMainLooper = looper != null ? looper : context.getMainLooper(); 52 mH = new MyHandler(mMainLooper, asyncHandler); 53 mCallback = callback; 54 } 55 56 public void executeOrSendMessage(Message msg) { 57 // If we are calling this from the main thread, then we can call 58 // right through. Otherwise, we need to send the message to the 59 // main thread. 60 if (Looper.myLooper() == mMainLooper) { 61 mCallback.executeMessage(msg); 62 msg.recycle(); 63 return; 64 } 65 66 mH.sendMessage(msg); 67 } 68 69 public boolean hasMessages(int what) { 70 return mH.hasMessages(what); 71 } 72 73 public void removeMessages(int what) { 74 mH.removeMessages(what); 75 } 76 77 public void removeMessages(int what, Object obj) { 78 mH.removeMessages(what, obj); 79 } 80 81 public void sendMessage(Message msg) { 82 mH.sendMessage(msg); 83 } 84 85 public Message obtainMessage(int what) { 86 return mH.obtainMessage(what); 87 } 88 89 public Message obtainMessageBO(int what, boolean arg1, Object arg2) { 90 return mH.obtainMessage(what, arg1 ? 1 : 0, 0, arg2); 91 } 92 93 public Message obtainMessageBOO(int what, boolean arg1, Object arg2, Object arg3) { 94 SomeArgs args = SomeArgs.obtain(); 95 args.arg1 = arg2; 96 args.arg2 = arg3; 97 return mH.obtainMessage(what, arg1 ? 1 : 0, 0, args); 98 } 99 100 public Message obtainMessageO(int what, Object arg1) { 101 return mH.obtainMessage(what, 0, 0, arg1); 102 } 103 104 public Message obtainMessageI(int what, int arg1) { 105 return mH.obtainMessage(what, arg1, 0); 106 } 107 108 public Message obtainMessageII(int what, int arg1, int arg2) { 109 return mH.obtainMessage(what, arg1, arg2); 110 } 111 112 public Message obtainMessageIO(int what, int arg1, Object arg2) { 113 return mH.obtainMessage(what, arg1, 0, arg2); 114 } 115 116 public Message obtainMessageIIO(int what, int arg1, int arg2, Object arg3) { 117 return mH.obtainMessage(what, arg1, arg2, arg3); 118 } 119 120 public Message obtainMessageIIOO(int what, int arg1, int arg2, 121 Object arg3, Object arg4) { 122 SomeArgs args = SomeArgs.obtain(); 123 args.arg1 = arg3; 124 args.arg2 = arg4; 125 return mH.obtainMessage(what, arg1, arg2, args); 126 } 127 128 public Message obtainMessageIOO(int what, int arg1, Object arg2, Object arg3) { 129 SomeArgs args = SomeArgs.obtain(); 130 args.arg1 = arg2; 131 args.arg2 = arg3; 132 return mH.obtainMessage(what, arg1, 0, args); 133 } 134 135 public Message obtainMessageOO(int what, Object arg1, Object arg2) { 136 SomeArgs args = SomeArgs.obtain(); 137 args.arg1 = arg1; 138 args.arg2 = arg2; 139 return mH.obtainMessage(what, 0, 0, args); 140 } 141 142 public Message obtainMessageOOO(int what, Object arg1, Object arg2, Object arg3) { 143 SomeArgs args = SomeArgs.obtain(); 144 args.arg1 = arg1; 145 args.arg2 = arg2; 146 args.arg3 = arg3; 147 return mH.obtainMessage(what, 0, 0, args); 148 } 149 150 public Message obtainMessageOOOO(int what, Object arg1, Object arg2, 151 Object arg3, Object arg4) { 152 SomeArgs args = SomeArgs.obtain(); 153 args.arg1 = arg1; 154 args.arg2 = arg2; 155 args.arg3 = arg3; 156 args.arg4 = arg4; 157 return mH.obtainMessage(what, 0, 0, args); 158 } 159 160 public Message obtainMessageIIII(int what, int arg1, int arg2, 161 int arg3, int arg4) { 162 SomeArgs args = SomeArgs.obtain(); 163 args.argi1 = arg1; 164 args.argi2 = arg2; 165 args.argi3 = arg3; 166 args.argi4 = arg4; 167 return mH.obtainMessage(what, 0, 0, args); 168 } 169 170 public Message obtainMessageIIIIII(int what, int arg1, int arg2, 171 int arg3, int arg4, int arg5, int arg6) { 172 SomeArgs args = SomeArgs.obtain(); 173 args.argi1 = arg1; 174 args.argi2 = arg2; 175 args.argi3 = arg3; 176 args.argi4 = arg4; 177 args.argi5 = arg5; 178 args.argi6 = arg6; 179 return mH.obtainMessage(what, 0, 0, args); 180 } 181 182 public Message obtainMessageIIIIO(int what, int arg1, int arg2, 183 int arg3, int arg4, Object arg5) { 184 SomeArgs args = SomeArgs.obtain(); 185 args.arg1 = arg5; 186 args.argi1 = arg1; 187 args.argi2 = arg2; 188 args.argi3 = arg3; 189 args.argi4 = arg4; 190 return mH.obtainMessage(what, 0, 0, args); 191 } 192 } 193
