628 lines
24 KiB
Java
628 lines
24 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.os.SystemClock;
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import android.os.PowerManager;
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import android.util.Log;
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import android.util.SparseArray;
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import android.view.Display;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.RawInputEvent;
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import android.view.Surface;
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import android.view.WindowManagerPolicy;
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public abstract class KeyInputQueue {
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static final String TAG = "KeyInputQueue";
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SparseArray<InputDevice> mDevices = new SparseArray<InputDevice>();
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int mGlobalMetaState = 0;
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boolean mHaveGlobalMetaState = false;
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final QueuedEvent mFirst;
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final QueuedEvent mLast;
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QueuedEvent mCache;
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int mCacheCount;
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Display mDisplay = null;
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int mOrientation = Surface.ROTATION_0;
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int[] mKeyRotationMap = null;
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PowerManager.WakeLock mWakeLock;
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static final int[] KEY_90_MAP = new int[] {
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KeyEvent.KEYCODE_DPAD_DOWN, KeyEvent.KEYCODE_DPAD_RIGHT,
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KeyEvent.KEYCODE_DPAD_RIGHT, KeyEvent.KEYCODE_DPAD_UP,
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KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_LEFT,
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KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_DOWN,
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};
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static final int[] KEY_180_MAP = new int[] {
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KeyEvent.KEYCODE_DPAD_DOWN, KeyEvent.KEYCODE_DPAD_UP,
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KeyEvent.KEYCODE_DPAD_RIGHT, KeyEvent.KEYCODE_DPAD_LEFT,
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KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_DOWN,
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KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_RIGHT,
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};
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static final int[] KEY_270_MAP = new int[] {
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KeyEvent.KEYCODE_DPAD_DOWN, KeyEvent.KEYCODE_DPAD_LEFT,
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KeyEvent.KEYCODE_DPAD_LEFT, KeyEvent.KEYCODE_DPAD_UP,
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KeyEvent.KEYCODE_DPAD_UP, KeyEvent.KEYCODE_DPAD_RIGHT,
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KeyEvent.KEYCODE_DPAD_RIGHT, KeyEvent.KEYCODE_DPAD_DOWN,
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};
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public static final int FILTER_REMOVE = 0;
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public static final int FILTER_KEEP = 1;
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public static final int FILTER_ABORT = -1;
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public interface FilterCallback {
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int filterEvent(QueuedEvent ev);
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}
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static class QueuedEvent {
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InputDevice inputDevice;
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long when;
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int flags; // From the raw event
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int classType; // One of the class constants in InputEvent
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Object event;
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boolean inQueue;
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void copyFrom(QueuedEvent that) {
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this.inputDevice = that.inputDevice;
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this.when = that.when;
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this.flags = that.flags;
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this.classType = that.classType;
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this.event = that.event;
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}
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@Override
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public String toString() {
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return "QueuedEvent{"
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+ Integer.toHexString(System.identityHashCode(this))
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+ " " + event + "}";
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}
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// not copied
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QueuedEvent prev;
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QueuedEvent next;
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}
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KeyInputQueue(Context context) {
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PowerManager pm = (PowerManager)context.getSystemService(
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Context.POWER_SERVICE);
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mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
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"KeyInputQueue");
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mWakeLock.setReferenceCounted(false);
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mFirst = new QueuedEvent();
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mLast = new QueuedEvent();
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mFirst.next = mLast;
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mLast.prev = mFirst;
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mThread.start();
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}
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public void setDisplay(Display display) {
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mDisplay = display;
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}
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public void getInputConfiguration(Configuration config) {
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synchronized (mFirst) {
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config.touchscreen = Configuration.TOUCHSCREEN_NOTOUCH;
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config.keyboard = Configuration.KEYBOARD_NOKEYS;
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config.navigation = Configuration.NAVIGATION_NONAV;
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final int N = mDevices.size();
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for (int i=0; i<N; i++) {
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InputDevice d = mDevices.valueAt(i);
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if (d != null) {
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if ((d.classes&RawInputEvent.CLASS_TOUCHSCREEN) != 0) {
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config.touchscreen
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= Configuration.TOUCHSCREEN_FINGER;
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//Log.i("foo", "***** HAVE TOUCHSCREEN!");
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}
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if ((d.classes&RawInputEvent.CLASS_ALPHAKEY) != 0) {
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config.keyboard
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= Configuration.KEYBOARD_QWERTY;
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//Log.i("foo", "***** HAVE QWERTY!");
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}
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if ((d.classes&RawInputEvent.CLASS_TRACKBALL) != 0) {
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config.navigation
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= Configuration.NAVIGATION_TRACKBALL;
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//Log.i("foo", "***** HAVE TRACKBALL!");
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}
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}
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}
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}
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}
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public static native String getDeviceName(int deviceId);
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public static native int getDeviceClasses(int deviceId);
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public static native boolean getAbsoluteInfo(int deviceId, int axis,
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InputDevice.AbsoluteInfo outInfo);
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public static native int getSwitchState(int sw);
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public static native int getSwitchState(int deviceId, int sw);
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public static native int getScancodeState(int sw);
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public static native int getScancodeState(int deviceId, int sw);
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public static native int getKeycodeState(int sw);
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public static native int getKeycodeState(int deviceId, int sw);
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public static native boolean hasKeys(int[] keycodes, boolean[] keyExists);
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public static KeyEvent newKeyEvent(InputDevice device, long downTime,
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long eventTime, boolean down, int keycode, int repeatCount,
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int scancode, int flags) {
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return new KeyEvent(
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downTime, eventTime,
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down ? KeyEvent.ACTION_DOWN : KeyEvent.ACTION_UP,
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keycode, repeatCount,
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device != null ? device.mMetaKeysState : 0,
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device != null ? device.id : -1, scancode,
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flags | KeyEvent.FLAG_FROM_SYSTEM);
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}
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Thread mThread = new Thread("InputDeviceReader") {
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public void run() {
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android.os.Process.setThreadPriority(
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android.os.Process.THREAD_PRIORITY_URGENT_DISPLAY);
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try {
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RawInputEvent ev = new RawInputEvent();
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while (true) {
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InputDevice di;
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// block, doesn't release the monitor
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readEvent(ev);
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boolean send = false;
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boolean configChanged = false;
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if (false) {
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Log.i(TAG, "Input event: dev=0x"
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+ Integer.toHexString(ev.deviceId)
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+ " type=0x" + Integer.toHexString(ev.type)
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+ " scancode=" + ev.scancode
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+ " keycode=" + ev.keycode
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+ " value=" + ev.value);
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}
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if (ev.type == RawInputEvent.EV_DEVICE_ADDED) {
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synchronized (mFirst) {
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di = newInputDevice(ev.deviceId);
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mDevices.put(ev.deviceId, di);
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configChanged = true;
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}
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} else if (ev.type == RawInputEvent.EV_DEVICE_REMOVED) {
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synchronized (mFirst) {
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Log.i(TAG, "Device removed: id=0x"
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+ Integer.toHexString(ev.deviceId));
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di = mDevices.get(ev.deviceId);
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if (di != null) {
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mDevices.delete(ev.deviceId);
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configChanged = true;
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} else {
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Log.w(TAG, "Bad device id: " + ev.deviceId);
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}
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}
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} else {
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di = getInputDevice(ev.deviceId);
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// first crack at it
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send = preprocessEvent(di, ev);
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if (ev.type == RawInputEvent.EV_KEY) {
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di.mMetaKeysState = makeMetaState(ev.keycode,
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ev.value != 0, di.mMetaKeysState);
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mHaveGlobalMetaState = false;
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}
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}
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if (di == null) {
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continue;
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}
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if (configChanged) {
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synchronized (mFirst) {
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addLocked(di, SystemClock.uptimeMillis(), 0,
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RawInputEvent.CLASS_CONFIGURATION_CHANGED,
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null);
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}
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}
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if (!send) {
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continue;
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}
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synchronized (mFirst) {
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// NOTE: The event timebase absolutely must be the same
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// timebase as SystemClock.uptimeMillis().
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//curTime = gotOne ? ev.when : SystemClock.uptimeMillis();
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final long curTime = SystemClock.uptimeMillis();
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//Log.i(TAG, "curTime=" + curTime + ", systemClock=" + SystemClock.uptimeMillis());
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final int classes = di.classes;
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final int type = ev.type;
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final int scancode = ev.scancode;
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send = false;
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// Is it a key event?
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if (type == RawInputEvent.EV_KEY &&
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(classes&RawInputEvent.CLASS_KEYBOARD) != 0 &&
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(scancode < RawInputEvent.BTN_FIRST ||
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scancode > RawInputEvent.BTN_LAST)) {
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boolean down;
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if (ev.value != 0) {
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down = true;
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di.mDownTime = curTime;
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} else {
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down = false;
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}
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int keycode = rotateKeyCodeLocked(ev.keycode);
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addLocked(di, curTime, ev.flags,
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RawInputEvent.CLASS_KEYBOARD,
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newKeyEvent(di, di.mDownTime, curTime, down,
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keycode, 0, scancode,
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((ev.flags & WindowManagerPolicy.FLAG_WOKE_HERE) != 0)
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? KeyEvent.FLAG_WOKE_HERE : 0));
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} else if (ev.type == RawInputEvent.EV_KEY) {
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if (ev.scancode == RawInputEvent.BTN_TOUCH &&
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(classes&RawInputEvent.CLASS_TOUCHSCREEN) != 0) {
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di.mAbs.changed = true;
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di.mAbs.down = ev.value != 0;
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}
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if (ev.scancode == RawInputEvent.BTN_MOUSE &&
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(classes&RawInputEvent.CLASS_TRACKBALL) != 0) {
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di.mRel.changed = true;
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di.mRel.down = ev.value != 0;
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send = true;
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}
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} else if (ev.type == RawInputEvent.EV_ABS &&
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(classes&RawInputEvent.CLASS_TOUCHSCREEN) != 0) {
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if (ev.scancode == RawInputEvent.ABS_X) {
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di.mAbs.changed = true;
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di.mAbs.x = ev.value;
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} else if (ev.scancode == RawInputEvent.ABS_Y) {
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di.mAbs.changed = true;
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di.mAbs.y = ev.value;
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} else if (ev.scancode == RawInputEvent.ABS_PRESSURE) {
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di.mAbs.changed = true;
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di.mAbs.pressure = ev.value;
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} else if (ev.scancode == RawInputEvent.ABS_TOOL_WIDTH) {
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di.mAbs.changed = true;
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di.mAbs.size = ev.value;
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}
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} else if (ev.type == RawInputEvent.EV_REL &&
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(classes&RawInputEvent.CLASS_TRACKBALL) != 0) {
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// Add this relative movement into our totals.
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if (ev.scancode == RawInputEvent.REL_X) {
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di.mRel.changed = true;
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di.mRel.x += ev.value;
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} else if (ev.scancode == RawInputEvent.REL_Y) {
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di.mRel.changed = true;
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di.mRel.y += ev.value;
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}
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}
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if (send || ev.type == RawInputEvent.EV_SYN) {
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if (mDisplay != null) {
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if (!mHaveGlobalMetaState) {
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computeGlobalMetaStateLocked();
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}
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MotionEvent me;
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me = di.mAbs.generateMotion(di, curTime, true,
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mDisplay, mOrientation, mGlobalMetaState);
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if (false) Log.v(TAG, "Absolute: x=" + di.mAbs.x
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+ " y=" + di.mAbs.y + " ev=" + me);
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if (me != null) {
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if (WindowManagerPolicy.WATCH_POINTER) {
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Log.i(TAG, "Enqueueing: " + me);
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}
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addLocked(di, curTime, ev.flags,
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RawInputEvent.CLASS_TOUCHSCREEN, me);
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}
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me = di.mRel.generateMotion(di, curTime, false,
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mDisplay, mOrientation, mGlobalMetaState);
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if (false) Log.v(TAG, "Relative: x=" + di.mRel.x
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+ " y=" + di.mRel.y + " ev=" + me);
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if (me != null) {
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addLocked(di, curTime, ev.flags,
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RawInputEvent.CLASS_TRACKBALL, me);
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}
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}
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}
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}
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}
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}
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catch (RuntimeException exc) {
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Log.e(TAG, "InputReaderThread uncaught exception", exc);
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}
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}
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};
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/**
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* Returns a new meta state for the given keys and old state.
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*/
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private static final int makeMetaState(int keycode, boolean down, int old) {
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int mask;
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switch (keycode) {
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case KeyEvent.KEYCODE_ALT_LEFT:
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mask = KeyEvent.META_ALT_LEFT_ON;
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break;
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case KeyEvent.KEYCODE_ALT_RIGHT:
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mask = KeyEvent.META_ALT_RIGHT_ON;
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break;
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case KeyEvent.KEYCODE_SHIFT_LEFT:
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mask = KeyEvent.META_SHIFT_LEFT_ON;
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break;
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case KeyEvent.KEYCODE_SHIFT_RIGHT:
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mask = KeyEvent.META_SHIFT_RIGHT_ON;
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break;
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case KeyEvent.KEYCODE_SYM:
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mask = KeyEvent.META_SYM_ON;
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break;
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default:
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return old;
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}
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int result = ~(KeyEvent.META_ALT_ON | KeyEvent.META_SHIFT_ON)
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& (down ? (old | mask) : (old & ~mask));
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if (0 != (result & (KeyEvent.META_ALT_LEFT_ON | KeyEvent.META_ALT_RIGHT_ON))) {
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result |= KeyEvent.META_ALT_ON;
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}
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if (0 != (result & (KeyEvent.META_SHIFT_LEFT_ON | KeyEvent.META_SHIFT_RIGHT_ON))) {
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result |= KeyEvent.META_SHIFT_ON;
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}
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return result;
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}
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private void computeGlobalMetaStateLocked() {
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int i = mDevices.size();
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mGlobalMetaState = 0;
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while ((--i) >= 0) {
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mGlobalMetaState |= mDevices.valueAt(i).mMetaKeysState;
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}
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mHaveGlobalMetaState = true;
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}
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/*
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* Return true if you want the event to get passed on to the
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* rest of the system, and false if you've handled it and want
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* it dropped.
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*/
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abstract boolean preprocessEvent(InputDevice device, RawInputEvent event);
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InputDevice getInputDevice(int deviceId) {
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synchronized (mFirst) {
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return getInputDeviceLocked(deviceId);
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}
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}
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private InputDevice getInputDeviceLocked(int deviceId) {
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return mDevices.get(deviceId);
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}
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public void setOrientation(int orientation) {
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synchronized(mFirst) {
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mOrientation = orientation;
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switch (orientation) {
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case Surface.ROTATION_90:
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mKeyRotationMap = KEY_90_MAP;
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break;
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case Surface.ROTATION_180:
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mKeyRotationMap = KEY_180_MAP;
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break;
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case Surface.ROTATION_270:
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mKeyRotationMap = KEY_270_MAP;
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break;
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default:
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mKeyRotationMap = null;
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break;
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}
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}
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}
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public int rotateKeyCode(int keyCode) {
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synchronized(mFirst) {
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return rotateKeyCodeLocked(keyCode);
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}
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}
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private int rotateKeyCodeLocked(int keyCode) {
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int[] map = mKeyRotationMap;
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if (map != null) {
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final int N = map.length;
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for (int i=0; i<N; i+=2) {
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if (map[i] == keyCode) {
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return map[i+1];
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}
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}
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}
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return keyCode;
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}
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boolean hasEvents() {
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synchronized (mFirst) {
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return mFirst.next != mLast;
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}
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}
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/*
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* returns true if we returned an event, and false if we timed out
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*/
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QueuedEvent getEvent(long timeoutMS) {
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long begin = SystemClock.uptimeMillis();
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final long end = begin+timeoutMS;
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long now = begin;
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synchronized (mFirst) {
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while (mFirst.next == mLast && end > now) {
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try {
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mWakeLock.release();
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mFirst.wait(end-now);
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}
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catch (InterruptedException e) {
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}
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now = SystemClock.uptimeMillis();
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if (begin > now) {
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begin = now;
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}
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}
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if (mFirst.next == mLast) {
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return null;
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}
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QueuedEvent p = mFirst.next;
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mFirst.next = p.next;
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mFirst.next.prev = mFirst;
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p.inQueue = false;
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return p;
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}
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}
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void recycleEvent(QueuedEvent ev) {
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synchronized (mFirst) {
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//Log.i(TAG, "Recycle event: " + ev);
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if (ev.event == ev.inputDevice.mAbs.currentMove) {
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ev.inputDevice.mAbs.currentMove = null;
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}
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if (ev.event == ev.inputDevice.mRel.currentMove) {
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if (false) Log.i(TAG, "Detach rel " + ev.event);
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ev.inputDevice.mRel.currentMove = null;
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ev.inputDevice.mRel.x = 0;
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ev.inputDevice.mRel.y = 0;
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}
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recycleLocked(ev);
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}
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|
}
|
|
|
|
void filterQueue(FilterCallback cb) {
|
|
synchronized (mFirst) {
|
|
QueuedEvent cur = mLast.prev;
|
|
while (cur.prev != null) {
|
|
switch (cb.filterEvent(cur)) {
|
|
case FILTER_REMOVE:
|
|
cur.prev.next = cur.next;
|
|
cur.next.prev = cur.prev;
|
|
break;
|
|
case FILTER_ABORT:
|
|
return;
|
|
}
|
|
cur = cur.prev;
|
|
}
|
|
}
|
|
}
|
|
|
|
private QueuedEvent obtainLocked(InputDevice device, long when,
|
|
int flags, int classType, Object event) {
|
|
QueuedEvent ev;
|
|
if (mCacheCount == 0) {
|
|
ev = new QueuedEvent();
|
|
} else {
|
|
ev = mCache;
|
|
ev.inQueue = false;
|
|
mCache = ev.next;
|
|
mCacheCount--;
|
|
}
|
|
ev.inputDevice = device;
|
|
ev.when = when;
|
|
ev.flags = flags;
|
|
ev.classType = classType;
|
|
ev.event = event;
|
|
return ev;
|
|
}
|
|
|
|
private void recycleLocked(QueuedEvent ev) {
|
|
if (ev.inQueue) {
|
|
throw new RuntimeException("Event already in queue!");
|
|
}
|
|
if (mCacheCount < 10) {
|
|
mCacheCount++;
|
|
ev.next = mCache;
|
|
mCache = ev;
|
|
ev.inQueue = true;
|
|
}
|
|
}
|
|
|
|
private void addLocked(InputDevice device, long when, int flags,
|
|
int classType, Object event) {
|
|
boolean poke = mFirst.next == mLast;
|
|
|
|
QueuedEvent ev = obtainLocked(device, when, flags, classType, event);
|
|
QueuedEvent p = mLast.prev;
|
|
while (p != mFirst && ev.when < p.when) {
|
|
p = p.prev;
|
|
}
|
|
|
|
ev.next = p.next;
|
|
ev.prev = p;
|
|
p.next = ev;
|
|
ev.next.prev = ev;
|
|
ev.inQueue = true;
|
|
|
|
if (poke) {
|
|
mFirst.notify();
|
|
mWakeLock.acquire();
|
|
}
|
|
}
|
|
|
|
private InputDevice newInputDevice(int deviceId) {
|
|
int classes = getDeviceClasses(deviceId);
|
|
String name = getDeviceName(deviceId);
|
|
Log.i(TAG, "Device added: id=0x" + Integer.toHexString(deviceId)
|
|
+ ", name=" + name
|
|
+ ", classes=" + Integer.toHexString(classes));
|
|
InputDevice.AbsoluteInfo absX;
|
|
InputDevice.AbsoluteInfo absY;
|
|
InputDevice.AbsoluteInfo absPressure;
|
|
InputDevice.AbsoluteInfo absSize;
|
|
if ((classes&RawInputEvent.CLASS_TOUCHSCREEN) != 0) {
|
|
absX = loadAbsoluteInfo(deviceId, RawInputEvent.ABS_X, "X");
|
|
absY = loadAbsoluteInfo(deviceId, RawInputEvent.ABS_Y, "Y");
|
|
absPressure = loadAbsoluteInfo(deviceId, RawInputEvent.ABS_PRESSURE, "Pressure");
|
|
absSize = loadAbsoluteInfo(deviceId, RawInputEvent.ABS_TOOL_WIDTH, "Size");
|
|
} else {
|
|
absX = null;
|
|
absY = null;
|
|
absPressure = null;
|
|
absSize = null;
|
|
}
|
|
|
|
return new InputDevice(deviceId, classes, name, absX, absY, absPressure, absSize);
|
|
}
|
|
|
|
private InputDevice.AbsoluteInfo loadAbsoluteInfo(int id, int channel,
|
|
String name) {
|
|
InputDevice.AbsoluteInfo info = new InputDevice.AbsoluteInfo();
|
|
if (getAbsoluteInfo(id, channel, info)
|
|
&& info.minValue != info.maxValue) {
|
|
Log.i(TAG, " " + name + ": min=" + info.minValue
|
|
+ " max=" + info.maxValue
|
|
+ " flat=" + info.flat
|
|
+ " fuzz=" + info.fuzz);
|
|
info.range = info.maxValue-info.minValue;
|
|
return info;
|
|
}
|
|
Log.i(TAG, " " + name + ": unknown values");
|
|
return null;
|
|
}
|
|
private static native boolean readEvent(RawInputEvent outEvent);
|
|
}
|