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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.inputmethodservice;
import com.android.internal.os.HandlerCaller;
import com.android.internal.os.SomeArgs;
import com.android.internal.view.IInputMethodCallback;
import com.android.internal.view.IInputMethodSession;
import android.content.Context;
import android.graphics.Rect;
import android.os.Bundle;
import android.os.Message;
import android.os.RemoteException;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.ExtractedText;
import android.view.inputmethod.InputMethodSession;
class IInputMethodSessionWrapper extends IInputMethodSession.Stub
implements HandlerCaller.Callback {
private static final String TAG = "InputMethodWrapper";
private static final boolean DEBUG = false;
private static final int DO_FINISH_INPUT = 60;
private static final int DO_DISPLAY_COMPLETIONS = 65;
private static final int DO_UPDATE_EXTRACTED_TEXT = 67;
private static final int DO_DISPATCH_KEY_EVENT = 70;
private static final int DO_DISPATCH_TRACKBALL_EVENT = 80;
private static final int DO_DISPATCH_GENERIC_MOTION_EVENT = 85;
private static final int DO_UPDATE_SELECTION = 90;
private static final int DO_UPDATE_CURSOR = 95;
private static final int DO_APP_PRIVATE_COMMAND = 100;
private static final int DO_TOGGLE_SOFT_INPUT = 105;
private static final int DO_FINISH_SESSION = 110;
private static final int DO_VIEW_CLICKED = 115;
HandlerCaller mCaller;
InputMethodSession mInputMethodSession;
// NOTE: we should have a cache of these.
static class InputMethodEventCallbackWrapper implements InputMethodSession.EventCallback {
final IInputMethodCallback mCb;
InputMethodEventCallbackWrapper(IInputMethodCallback cb) {
mCb = cb;
}
public void finishedEvent(int seq, boolean handled) {
try {
mCb.finishedEvent(seq, handled);
} catch (RemoteException e) {
}
}
}
public IInputMethodSessionWrapper(Context context,
InputMethodSession inputMethodSession) {
mCaller = new HandlerCaller(context, this);
mInputMethodSession = inputMethodSession;
}
public InputMethodSession getInternalInputMethodSession() {
return mInputMethodSession;
}
public void executeMessage(Message msg) {
if (mInputMethodSession == null) return;
switch (msg.what) {
case DO_FINISH_INPUT:
mInputMethodSession.finishInput();
return;
case DO_DISPLAY_COMPLETIONS:
mInputMethodSession.displayCompletions((CompletionInfo[])msg.obj);
return;
case DO_UPDATE_EXTRACTED_TEXT:
mInputMethodSession.updateExtractedText(msg.arg1,
(ExtractedText)msg.obj);
return;
case DO_DISPATCH_KEY_EVENT: {
SomeArgs args = (SomeArgs)msg.obj;
mInputMethodSession.dispatchKeyEvent(msg.arg1,
(KeyEvent)args.arg1,
new InputMethodEventCallbackWrapper(
(IInputMethodCallback)args.arg2));
args.recycle();
return;
}
case DO_DISPATCH_TRACKBALL_EVENT: {
SomeArgs args = (SomeArgs)msg.obj;
mInputMethodSession.dispatchTrackballEvent(msg.arg1,
(MotionEvent)args.arg1,
new InputMethodEventCallbackWrapper(
(IInputMethodCallback)args.arg2));
args.recycle();
return;
}
case DO_DISPATCH_GENERIC_MOTION_EVENT: {
SomeArgs args = (SomeArgs)msg.obj;
mInputMethodSession.dispatchGenericMotionEvent(msg.arg1,
(MotionEvent)args.arg1,
new InputMethodEventCallbackWrapper(
(IInputMethodCallback)args.arg2));
args.recycle();
return;
}
case DO_UPDATE_SELECTION: {
SomeArgs args = (SomeArgs)msg.obj;
mInputMethodSession.updateSelection(args.argi1, args.argi2,
args.argi3, args.argi4, args.argi5, args.argi6);
args.recycle();
return;
}
case DO_UPDATE_CURSOR: {
mInputMethodSession.updateCursor((Rect)msg.obj);
return;
}
case DO_APP_PRIVATE_COMMAND: {
SomeArgs args = (SomeArgs)msg.obj;
mInputMethodSession.appPrivateCommand((String)args.arg1,
(Bundle)args.arg2);
args.recycle();
return;
}
case DO_TOGGLE_SOFT_INPUT: {
mInputMethodSession.toggleSoftInput(msg.arg1, msg.arg2);
return;
}
case DO_FINISH_SESSION: {
mInputMethodSession = null;
return;
}
case DO_VIEW_CLICKED: {
mInputMethodSession.viewClicked(msg.arg1 == 1);
return;
}
}
Log.w(TAG, "Unhandled message code: " + msg.what);
}
public void finishInput() {
mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_INPUT));
}
public void displayCompletions(CompletionInfo[] completions) {
mCaller.executeOrSendMessage(mCaller.obtainMessageO(
DO_DISPLAY_COMPLETIONS, completions));
}
public void updateExtractedText(int token, ExtractedText text) {
mCaller.executeOrSendMessage(mCaller.obtainMessageIO(
DO_UPDATE_EXTRACTED_TEXT, token, text));
}
public void dispatchKeyEvent(int seq, KeyEvent event, IInputMethodCallback callback) {
mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_KEY_EVENT, seq,
event, callback));
}
public void dispatchTrackballEvent(int seq, MotionEvent event, IInputMethodCallback callback) {
mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_TRACKBALL_EVENT, seq,
event, callback));
}
public void dispatchGenericMotionEvent(int seq, MotionEvent event,
IInputMethodCallback callback) {
mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_GENERIC_MOTION_EVENT, seq,
event, callback));
}
public void updateSelection(int oldSelStart, int oldSelEnd,
int newSelStart, int newSelEnd, int candidatesStart, int candidatesEnd) {
mCaller.executeOrSendMessage(mCaller.obtainMessageIIIIII(DO_UPDATE_SELECTION,
oldSelStart, oldSelEnd, newSelStart, newSelEnd,
candidatesStart, candidatesEnd));
}
public void viewClicked(boolean focusChanged) {
mCaller.executeOrSendMessage(mCaller.obtainMessageI(DO_VIEW_CLICKED, focusChanged ? 1 : 0));
}
public void updateCursor(Rect newCursor) {
mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_UPDATE_CURSOR,
newCursor));
}
public void appPrivateCommand(String action, Bundle data) {
mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_APP_PRIVATE_COMMAND, action, data));
}
public void toggleSoftInput(int showFlags, int hideFlags) {
mCaller.executeOrSendMessage(mCaller.obtainMessageII(DO_TOGGLE_SOFT_INPUT, showFlags, hideFlags));
}
public void finishSession() {
mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_SESSION));
}
}
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