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 17package android.inputmethodservice; 18 19import com.android.internal.os.HandlerCaller; 20import com.android.internal.view.IInputMethodCallback; 21import com.android.internal.view.IInputMethodSession; 22 23import android.content.Context; 24import android.graphics.Rect; 25import android.os.Bundle; 26import android.os.Message; 27import android.os.RemoteException; 28import android.util.Log; 29import android.view.KeyEvent; 30import android.view.MotionEvent; 31import android.view.inputmethod.CompletionInfo; 32import android.view.inputmethod.ExtractedText; 33import android.view.inputmethod.InputMethodSession; 34import android.view.inputmethod.EditorInfo; 35 36class IInputMethodSessionWrapper extends IInputMethodSession.Stub 37 implements HandlerCaller.Callback { 38 private static final String TAG = "InputMethodWrapper"; 39 private static final boolean DEBUG = false; 40 41 private static final int DO_FINISH_INPUT = 60; 42 private static final int DO_DISPLAY_COMPLETIONS = 65; 43 private static final int DO_UPDATE_EXTRACTED_TEXT = 67; 44 private static final int DO_DISPATCH_KEY_EVENT = 70; 45 private static final int DO_DISPATCH_TRACKBALL_EVENT = 80; 46 private static final int DO_UPDATE_SELECTION = 90; 47 private static final int DO_UPDATE_CURSOR = 95; 48 private static final int DO_APP_PRIVATE_COMMAND = 100; 49 private static final int DO_TOGGLE_SOFT_INPUT = 105; 50 private static final int DO_FINISH_SESSION = 110; 51 52 HandlerCaller mCaller; 53 InputMethodSession mInputMethodSession; 54 55 // NOTE: we should have a cache of these. 56 static class InputMethodEventCallbackWrapper implements InputMethodSession.EventCallback { 57 final IInputMethodCallback mCb; 58 InputMethodEventCallbackWrapper(IInputMethodCallback cb) { 59 mCb = cb; 60 } 61 public void finishedEvent(int seq, boolean handled) { 62 try { 63 mCb.finishedEvent(seq, handled); 64 } catch (RemoteException e) { 65 } 66 } 67 } 68 69 public IInputMethodSessionWrapper(Context context, 70 InputMethodSession inputMethodSession) { 71 mCaller = new HandlerCaller(context, this); 72 mInputMethodSession = inputMethodSession; 73 } 74 75 public InputMethodSession getInternalInputMethodSession() { 76 return mInputMethodSession; 77 } 78 79 public void executeMessage(Message msg) { 80 switch (msg.what) { 81 case DO_FINISH_INPUT: 82 mInputMethodSession.finishInput(); 83 return; 84 case DO_DISPLAY_COMPLETIONS: 85 mInputMethodSession.displayCompletions((CompletionInfo[])msg.obj); 86 return; 87 case DO_UPDATE_EXTRACTED_TEXT: 88 mInputMethodSession.updateExtractedText(msg.arg1, 89 (ExtractedText)msg.obj); 90 return; 91 case DO_DISPATCH_KEY_EVENT: { 92 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 93 mInputMethodSession.dispatchKeyEvent(msg.arg1, 94 (KeyEvent)args.arg1, 95 new InputMethodEventCallbackWrapper( 96 (IInputMethodCallback)args.arg2)); 97 mCaller.recycleArgs(args); 98 return; 99 } 100 case DO_DISPATCH_TRACKBALL_EVENT: { 101 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 102 mInputMethodSession.dispatchTrackballEvent(msg.arg1, 103 (MotionEvent)args.arg1, 104 new InputMethodEventCallbackWrapper( 105 (IInputMethodCallback)args.arg2)); 106 mCaller.recycleArgs(args); 107 return; 108 } 109 case DO_UPDATE_SELECTION: { 110 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 111 mInputMethodSession.updateSelection(args.argi1, args.argi2, 112 args.argi3, args.argi4, args.argi5, args.argi6); 113 mCaller.recycleArgs(args); 114 return; 115 } 116 case DO_UPDATE_CURSOR: { 117 mInputMethodSession.updateCursor((Rect)msg.obj); 118 return; 119 } 120 case DO_APP_PRIVATE_COMMAND: { 121 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 122 mInputMethodSession.appPrivateCommand((String)args.arg1, 123 (Bundle)args.arg2); 124 mCaller.recycleArgs(args); 125 return; 126 } 127 case DO_TOGGLE_SOFT_INPUT: { 128 mInputMethodSession.toggleSoftInput(msg.arg1, msg.arg2); 129 return; 130 } 131 case DO_FINISH_SESSION: { 132 mInputMethodSession = null; 133 return; 134 } 135 } 136 Log.w(TAG, "Unhandled message code: " + msg.what); 137 } 138 139 public void finishInput() { 140 mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_INPUT)); 141 } 142 143 public void displayCompletions(CompletionInfo[] completions) { 144 mCaller.executeOrSendMessage(mCaller.obtainMessageO( 145 DO_DISPLAY_COMPLETIONS, completions)); 146 } 147 148 public void updateExtractedText(int token, ExtractedText text) { 149 mCaller.executeOrSendMessage(mCaller.obtainMessageIO( 150 DO_UPDATE_EXTRACTED_TEXT, token, text)); 151 } 152 153 public void dispatchKeyEvent(int seq, KeyEvent event, IInputMethodCallback callback) { 154 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_KEY_EVENT, seq, 155 event, callback)); 156 } 157 158 public void dispatchTrackballEvent(int seq, MotionEvent event, IInputMethodCallback callback) { 159 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_TRACKBALL_EVENT, seq, 160 event, callback)); 161 } 162 163 public void updateSelection(int oldSelStart, int oldSelEnd, 164 int newSelStart, int newSelEnd, int candidatesStart, int candidatesEnd) { 165 mCaller.executeOrSendMessage(mCaller.obtainMessageIIIIII(DO_UPDATE_SELECTION, 166 oldSelStart, oldSelEnd, newSelStart, newSelEnd, 167 candidatesStart, candidatesEnd)); 168 } 169 170 public void updateCursor(Rect newCursor) { 171 mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_UPDATE_CURSOR, 172 newCursor)); 173 } 174 175 public void appPrivateCommand(String action, Bundle data) { 176 mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_APP_PRIVATE_COMMAND, action, data)); 177 } 178 179 public void toggleSoftInput(int showFlags, int hideFlags) { 180 mCaller.executeOrSendMessage(mCaller.obtainMessageII(DO_TOGGLE_SOFT_INPUT, showFlags, hideFlags)); 181 } 182 183 public void finishSession() { 184 mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_SESSION)); 185 } 186} 187