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 android.inputmethodservice; 18 19 import com.android.internal.os.HandlerCaller; 20 import com.android.internal.os.SomeArgs; 21 import com.android.internal.view.IInputMethodCallback; 22 import com.android.internal.view.IInputMethodSession; 23 24 import android.content.Context; 25 import android.graphics.Rect; 26 import android.os.Bundle; 27 import android.os.Message; 28 import android.os.RemoteException; 29 import android.util.Log; 30 import android.view.KeyEvent; 31 import android.view.MotionEvent; 32 import android.view.inputmethod.CompletionInfo; 33 import android.view.inputmethod.ExtractedText; 34 import android.view.inputmethod.InputMethodSession; 35 36 class 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_DISPATCH_GENERIC_MOTION_EVENT = 85; 47 private static final int DO_UPDATE_SELECTION = 90; 48 private static final int DO_UPDATE_CURSOR = 95; 49 private static final int DO_APP_PRIVATE_COMMAND = 100; 50 private static final int DO_TOGGLE_SOFT_INPUT = 105; 51 private static final int DO_FINISH_SESSION = 110; 52 private static final int DO_VIEW_CLICKED = 115; 53 54 HandlerCaller mCaller; 55 InputMethodSession mInputMethodSession; 56 57 // NOTE: we should have a cache of these. 58 static class InputMethodEventCallbackWrapper implements InputMethodSession.EventCallback { 59 final IInputMethodCallback mCb; InputMethodEventCallbackWrapper(IInputMethodCallback cb)60 InputMethodEventCallbackWrapper(IInputMethodCallback cb) { 61 mCb = cb; 62 } finishedEvent(int seq, boolean handled)63 public void finishedEvent(int seq, boolean handled) { 64 try { 65 mCb.finishedEvent(seq, handled); 66 } catch (RemoteException e) { 67 } 68 } 69 } 70 IInputMethodSessionWrapper(Context context, InputMethodSession inputMethodSession)71 public IInputMethodSessionWrapper(Context context, 72 InputMethodSession inputMethodSession) { 73 mCaller = new HandlerCaller(context, this); 74 mInputMethodSession = inputMethodSession; 75 } 76 getInternalInputMethodSession()77 public InputMethodSession getInternalInputMethodSession() { 78 return mInputMethodSession; 79 } 80 executeMessage(Message msg)81 public void executeMessage(Message msg) { 82 if (mInputMethodSession == null) return; 83 84 switch (msg.what) { 85 case DO_FINISH_INPUT: 86 mInputMethodSession.finishInput(); 87 return; 88 case DO_DISPLAY_COMPLETIONS: 89 mInputMethodSession.displayCompletions((CompletionInfo[])msg.obj); 90 return; 91 case DO_UPDATE_EXTRACTED_TEXT: 92 mInputMethodSession.updateExtractedText(msg.arg1, 93 (ExtractedText)msg.obj); 94 return; 95 case DO_DISPATCH_KEY_EVENT: { 96 SomeArgs args = (SomeArgs)msg.obj; 97 mInputMethodSession.dispatchKeyEvent(msg.arg1, 98 (KeyEvent)args.arg1, 99 new InputMethodEventCallbackWrapper( 100 (IInputMethodCallback)args.arg2)); 101 args.recycle(); 102 return; 103 } 104 case DO_DISPATCH_TRACKBALL_EVENT: { 105 SomeArgs args = (SomeArgs)msg.obj; 106 mInputMethodSession.dispatchTrackballEvent(msg.arg1, 107 (MotionEvent)args.arg1, 108 new InputMethodEventCallbackWrapper( 109 (IInputMethodCallback)args.arg2)); 110 args.recycle(); 111 return; 112 } 113 case DO_DISPATCH_GENERIC_MOTION_EVENT: { 114 SomeArgs args = (SomeArgs)msg.obj; 115 mInputMethodSession.dispatchGenericMotionEvent(msg.arg1, 116 (MotionEvent)args.arg1, 117 new InputMethodEventCallbackWrapper( 118 (IInputMethodCallback)args.arg2)); 119 args.recycle(); 120 return; 121 } 122 case DO_UPDATE_SELECTION: { 123 SomeArgs args = (SomeArgs)msg.obj; 124 mInputMethodSession.updateSelection(args.argi1, args.argi2, 125 args.argi3, args.argi4, args.argi5, args.argi6); 126 args.recycle(); 127 return; 128 } 129 case DO_UPDATE_CURSOR: { 130 mInputMethodSession.updateCursor((Rect)msg.obj); 131 return; 132 } 133 case DO_APP_PRIVATE_COMMAND: { 134 SomeArgs args = (SomeArgs)msg.obj; 135 mInputMethodSession.appPrivateCommand((String)args.arg1, 136 (Bundle)args.arg2); 137 args.recycle(); 138 return; 139 } 140 case DO_TOGGLE_SOFT_INPUT: { 141 mInputMethodSession.toggleSoftInput(msg.arg1, msg.arg2); 142 return; 143 } 144 case DO_FINISH_SESSION: { 145 mInputMethodSession = null; 146 return; 147 } 148 case DO_VIEW_CLICKED: { 149 mInputMethodSession.viewClicked(msg.arg1 == 1); 150 return; 151 } 152 } 153 Log.w(TAG, "Unhandled message code: " + msg.what); 154 } 155 finishInput()156 public void finishInput() { 157 mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_INPUT)); 158 } 159 displayCompletions(CompletionInfo[] completions)160 public void displayCompletions(CompletionInfo[] completions) { 161 mCaller.executeOrSendMessage(mCaller.obtainMessageO( 162 DO_DISPLAY_COMPLETIONS, completions)); 163 } 164 updateExtractedText(int token, ExtractedText text)165 public void updateExtractedText(int token, ExtractedText text) { 166 mCaller.executeOrSendMessage(mCaller.obtainMessageIO( 167 DO_UPDATE_EXTRACTED_TEXT, token, text)); 168 } 169 dispatchKeyEvent(int seq, KeyEvent event, IInputMethodCallback callback)170 public void dispatchKeyEvent(int seq, KeyEvent event, IInputMethodCallback callback) { 171 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_KEY_EVENT, seq, 172 event, callback)); 173 } 174 dispatchTrackballEvent(int seq, MotionEvent event, IInputMethodCallback callback)175 public void dispatchTrackballEvent(int seq, MotionEvent event, IInputMethodCallback callback) { 176 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_TRACKBALL_EVENT, seq, 177 event, callback)); 178 } 179 dispatchGenericMotionEvent(int seq, MotionEvent event, IInputMethodCallback callback)180 public void dispatchGenericMotionEvent(int seq, MotionEvent event, 181 IInputMethodCallback callback) { 182 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_GENERIC_MOTION_EVENT, seq, 183 event, callback)); 184 } 185 updateSelection(int oldSelStart, int oldSelEnd, int newSelStart, int newSelEnd, int candidatesStart, int candidatesEnd)186 public void updateSelection(int oldSelStart, int oldSelEnd, 187 int newSelStart, int newSelEnd, int candidatesStart, int candidatesEnd) { 188 mCaller.executeOrSendMessage(mCaller.obtainMessageIIIIII(DO_UPDATE_SELECTION, 189 oldSelStart, oldSelEnd, newSelStart, newSelEnd, 190 candidatesStart, candidatesEnd)); 191 } 192 viewClicked(boolean focusChanged)193 public void viewClicked(boolean focusChanged) { 194 mCaller.executeOrSendMessage(mCaller.obtainMessageI(DO_VIEW_CLICKED, focusChanged ? 1 : 0)); 195 } 196 updateCursor(Rect newCursor)197 public void updateCursor(Rect newCursor) { 198 mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_UPDATE_CURSOR, 199 newCursor)); 200 } 201 appPrivateCommand(String action, Bundle data)202 public void appPrivateCommand(String action, Bundle data) { 203 mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_APP_PRIVATE_COMMAND, action, data)); 204 } 205 toggleSoftInput(int showFlags, int hideFlags)206 public void toggleSoftInput(int showFlags, int hideFlags) { 207 mCaller.executeOrSendMessage(mCaller.obtainMessageII(DO_TOGGLE_SOFT_INPUT, showFlags, hideFlags)); 208 } 209 finishSession()210 public void finishSession() { 211 mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_SESSION)); 212 } 213 } 214