19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage com.android.tools.layoutlib.create; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.HashMap; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Allows stub methods from LayoutLib to be overriden at runtime. 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p/> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Implementation note: all types required by this class(inner/outer classes & interfaces) 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * must be referenced by the injectClass argument to {@link AsmGenerator} in Main.java; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Otherwise they won't be accessible in layoutlib.jar at runtime. 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic final class OverrideMethod { 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Map of method overridden. */ 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static HashMap<String, MethodListener> sMethods = new HashMap<String, MethodListener>(); 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Default listener for all method not listed in sMethods. Nothing if null. */ 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static MethodListener sDefaultListener = null; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the default listener for all methods not specifically handled. 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Null means to do nothing. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static void setDefaultListener(MethodListener listener) { 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sDefaultListener = listener; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines or reset a listener for the given method signature. 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param signature The signature of the method being invoked, composed of the 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * binary class name followed by the method descriptor (aka argument 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * types). Example: "com/foo/MyClass/InnerClass/printInt(I)V" 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The new listener. Removes it if null. 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static void setMethodListener(String signature, MethodListener listener) { 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener == null) { 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sMethods.remove(signature); 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sMethods.put(signature, listener); 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the specific listener for the given signature or the default one if defined. 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p/> 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This version invokes the method listener for the void return type. 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p/> 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note: this is not intended to be used by the LayoutLib Bridge. It is intended to be called 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by the stubbed methods generated by the LayoutLib_create tool. 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param signature The signature of the method being invoked, composed of the 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * binary class name followed by the method descriptor (aka argument 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * types). Example: "com/foo/MyClass/InnerClass/printInt(I)V". 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isNative True if the method was a native method. 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param caller The calling object. Null for static methods, "this" for instance methods. 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static void invokeV(String signature, boolean isNative, Object caller) { 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodListener i = sMethods.get(signature); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != null) { 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i.onInvokeV(signature, isNative, caller); 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (sDefaultListener != null) { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sDefaultListener.onInvokeV(signature, isNative, caller); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the specific listener for the int return type. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #invokeV(String, boolean, Object) 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int invokeI(String signature, boolean isNative, Object caller) { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodListener i = sMethods.get(signature); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != null) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i.onInvokeI(signature, isNative, caller); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (sDefaultListener != null) { 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sDefaultListener.onInvokeI(signature, isNative, caller); 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the specific listener for the long return type. 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #invokeV(String, boolean, Object) 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static long invokeL(String signature, boolean isNative, Object caller) { 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodListener i = sMethods.get(signature); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != null) { 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i.onInvokeL(signature, isNative, caller); 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (sDefaultListener != null) { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sDefaultListener.onInvokeL(signature, isNative, caller); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the specific listener for the float return type. 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #invokeV(String, boolean, Object) 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static float invokeF(String signature, boolean isNative, Object caller) { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodListener i = sMethods.get(signature); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != null) { 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i.onInvokeF(signature, isNative, caller); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (sDefaultListener != null) { 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sDefaultListener.onInvokeF(signature, isNative, caller); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the specific listener for the double return type. 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #invokeV(String, boolean, Object) 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static double invokeD(String signature, boolean isNative, Object caller) { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodListener i = sMethods.get(signature); 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != null) { 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i.onInvokeD(signature, isNative, caller); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (sDefaultListener != null) { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sDefaultListener.onInvokeD(signature, isNative, caller); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Invokes the specific listener for the object return type. 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #invokeV(String, boolean, Object) 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static Object invokeA(String signature, boolean isNative, Object caller) { 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodListener i = sMethods.get(signature); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != null) { 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i.onInvokeA(signature, isNative, caller); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (sDefaultListener != null) { 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return sDefaultListener.onInvokeA(signature, isNative, caller); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 152