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