| /* |
| * Copyright (C) 2011 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 com.android.server.accessibility; |
| |
| import com.android.server.wm.InputFilter; |
| |
| import android.content.Context; |
| import android.util.Slog; |
| import android.view.InputEvent; |
| import android.view.KeyEvent; |
| import android.view.MotionEvent; |
| import android.view.WindowManagerPolicy; |
| |
| /** |
| * Input filter for accessibility. |
| * |
| * Currently just a stub but will eventually implement touch exploration, etc. |
| */ |
| public class AccessibilityInputFilter extends InputFilter { |
| private static final String TAG = "AccessibilityInputFilter"; |
| private static final boolean DEBUG = true; |
| |
| private final Context mContext; |
| |
| public AccessibilityInputFilter(Context context) { |
| super(context.getMainLooper()); |
| mContext = context; |
| } |
| |
| @Override |
| public void onInstalled() { |
| if (DEBUG) { |
| Slog.d(TAG, "Accessibility input filter installed."); |
| } |
| super.onInstalled(); |
| } |
| |
| @Override |
| public void onUninstalled() { |
| if (DEBUG) { |
| Slog.d(TAG, "Accessibility input filter uninstalled."); |
| } |
| super.onUninstalled(); |
| } |
| |
| @Override |
| public void onInputEvent(InputEvent event, int policyFlags) { |
| if (DEBUG) { |
| Slog.d(TAG, "Accessibility input filter received input event: " |
| + event + ", policyFlags=0x" + Integer.toHexString(policyFlags)); |
| } |
| |
| // To prove that this is working as intended, we will silently transform |
| // Q key presses into non-repeating Z's as part of this stub implementation. |
| // TODO: Replace with the real thing. |
| if (event instanceof KeyEvent) { |
| final KeyEvent keyEvent = (KeyEvent)event; |
| if (keyEvent.getKeyCode() == KeyEvent.KEYCODE_Q) { |
| if (keyEvent.getRepeatCount() == 0) { |
| sendInputEvent(new KeyEvent(keyEvent.getDownTime(), keyEvent.getEventTime(), |
| keyEvent.getAction(), KeyEvent.KEYCODE_Z, keyEvent.getRepeatCount(), |
| keyEvent.getMetaState(), keyEvent.getDeviceId(), keyEvent.getScanCode(), |
| keyEvent.getFlags(), keyEvent.getSource()), |
| policyFlags | WindowManagerPolicy.FLAG_DISABLE_KEY_REPEAT); |
| } |
| return; |
| } |
| } |
| |
| super.onInputEvent(event, policyFlags); |
| } |
| } |