/*
* Copyright (C) 2007 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.commands.input;
import android.hardware.input.InputManager;
import android.os.SystemClock;
import android.util.Log;
import android.view.InputDevice;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.MotionEvent;
import java.util.HashMap;
import java.util.Map;
/**
* Command that sends key events to the device, either by their keycode, or by
* desired character output.
*/
public class Input {
private static final String TAG = "Input";
private static final String INVALID_ARGUMENTS = "Error: Invalid arguments for command: ";
private static final Map<String, Integer> SOURCES = new HashMap<String, Integer>() {{
put("keyboard", InputDevice.SOURCE_KEYBOARD);
put("dpad", InputDevice.SOURCE_DPAD);
put("gamepad", InputDevice.SOURCE_GAMEPAD);
put("touchscreen", InputDevice.SOURCE_TOUCHSCREEN);
put("mouse", InputDevice.SOURCE_MOUSE);
put("stylus", InputDevice.SOURCE_STYLUS);
put("trackball", InputDevice.SOURCE_TRACKBALL);
put("touchpad", InputDevice.SOURCE_TOUCHPAD);
put("touchnavigation", InputDevice.SOURCE_TOUCH_NAVIGATION);
put("joystick", InputDevice.SOURCE_JOYSTICK);
put("gesture", InputDevice.SOURCE_GESTURE_SENSOR);
}};
/**
* Command-line entry point.
*
* @param args The command-line arguments
*/
public static void main(String[] args) {
(new Input()).run(args);
}
private void run(String[] args) {
if (args.length < 1) {
showUsage();
return;
}
int index = 0;
String command = args[index];
int inputSource = InputDevice.SOURCE_UNKNOWN;
if (SOURCES.containsKey(command)) {
inputSource = SOURCES.get(command);
index++;
command = args[index];
}
final int length = args.length - index;
try {
if (command.equals("text")) {
if (length == 2) {
inputSource = getSource(inputSource, InputDevice.SOURCE_KEYBOARD);
sendText(inputSource, args[index+1]);
return;
}
} else if (command.equals("keyevent")) {
if (length >= 2) {
final boolean longpress = "--longpress".equals(args[index + 1]);
final int start = longpress ? index + 2 : index + 1;
inputSource = getSource(inputSource, InputDevice.SOURCE_KEYBOARD);
if (length > start) {
for (int i = start; i < length; i++) {
int keyCode = KeyEvent.keyCodeFromString(args[i]);
if (keyCode == KeyEvent.KEYCODE_UNKNOWN) {
keyCode = KeyEvent.keyCodeFromString("KEYCODE_" + args[i]);
}
sendKeyEvent(inputSource, keyCode, longpress);
}
return;
}
}
} else if (command.equals("tap")) {
if (length == 3) {
inputSource = getSource(inputSource, InputDevice.SOURCE_TOUCHSCREEN);
sendTap(inputSource, Float.parseFloat(args[index+1]),
Float.parseFloat(args[index+2]));
return;
}
} else if (command.equals("swipe")) {
int duration = -1;
inputSource = getSource(inputSource, InputDevice.SOURCE_TOUCHSCREEN);
switch (length) {
case 6:
duration = Integer.parseInt(args[index+5]);
case 5:
sendSwipe(inputSource,
Float.parseFloat(args[index+1]), Float.parseFloat(args[index+2]),
Float.parseFloat(args[index+3]), Float.parseFloat(args[index+4]),
duration);
return;
}
} else if (command.equals("press")) {
inputSource = getSource(inputSource, InputDevice.SOURCE_TRACKBALL);
if (length == 1) {
sendTap(inputSource, 0.0f, 0.0f);
return;
}
} else if (command.equals("roll")) {
inputSource = getSource(inputSource, InputDevice.SOURCE_TRACKBALL);
if (length == 3) {
sendMove(inputSource, Float.parseFloat(args[index+1]),
Float.parseFloat(args[index+2]));
return;
}
} else {
System.err.println("Error: Unknown command: " + command);
showUsage();
return;
}
} catch (NumberFormatException ex) {
}
System.err.println(INVALID_ARGUMENTS + command);
showUsage();
}
/**
* Convert the characters of string text into key event's and send to
* device.
*
* @param text is a string of characters you want to input to the device.
*/
private void sendText(int source, String text) {
StringBuffer buff = new StringBuffer(text);
boolean escapeFlag = false;
for (int i=0; i<buff.length(); i++) {
if (escapeFlag) {
escapeFlag = false;
if (buff.charAt(i) == 's') {
buff.setCharAt(i, ' ');
buff.deleteCharAt(--i);
}
}
if (buff.charAt(i) == '%') {
escapeFlag = true;
}
}
char[] chars = buff.toString().toCharArray();
KeyCharacterMap kcm = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
KeyEvent[] events = kcm.getEvents(chars);
for(int i = 0; i < events.length; i++) {
KeyEvent e = events[i];
if (source != e.getSource()) {
e.setSource(source);
}
injectKeyEvent(e);
}
}
private void sendKeyEvent(int inputSource, int keyCode, boolean longpress) {
long now = SystemClock.uptimeMillis();
injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, inputSource));
if (longpress) {
injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 1, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0, KeyEvent.FLAG_LONG_PRESS,
inputSource));
}
injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_UP, keyCode, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, inputSource));
}
private void sendTap(int inputSource, float x, float y) {
long now = SystemClock.uptimeMillis();
injectMotionEvent(inputSource, MotionEvent.ACTION_DOWN, now, x, y, 1.0f);
injectMotionEvent(inputSource, MotionEvent.ACTION_UP, now, x, y, 0.0f);
}
private void sendSwipe(int inputSource, float x1, float y1, float x2, float y2, int duration) {
if (duration < 0) {
duration = 300;
}
long now = SystemClock.uptimeMillis();
injectMotionEvent(inputSource, MotionEvent.ACTION_DOWN, now, x1, y1, 1.0f);
long startTime = now;
long endTime = startTime + duration;
while (now < endTime) {
long elapsedTime = now - startTime;
float alpha = (float) elapsedTime / duration;
injectMotionEvent(inputSource, MotionEvent.ACTION_MOVE, now, lerp(x1, x2, alpha),
lerp(y1, y2, alpha), 1.0f);
now = SystemClock.uptimeMillis();
}
injectMotionEvent(inputSource, MotionEvent.ACTION_UP, now, x2, y2, 0.0f);
}
/**
* Sends a simple zero-pressure move event.
*
* @param inputSource the InputDevice.SOURCE_* sending the input event
* @param dx change in x coordinate due to move
* @param dy change in y coordinate due to move
*/
private void sendMove(int inputSource, float dx, float dy) {
long now = SystemClock.uptimeMillis();
injectMotionEvent(inputSource, MotionEvent.ACTION_MOVE, now, dx, dy, 0.0f);
}
private void injectKeyEvent(KeyEvent event) {
Log.i(TAG, "injectKeyEvent: " + event);
InputManager.getInstance().injectInputEvent(event,
InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
}
private int getInputDeviceId(int inputSource) {
final int DEFAULT_DEVICE_ID = 0;
int[] devIds = InputDevice.getDeviceIds();
for (int devId : devIds) {
InputDevice inputDev = InputDevice.getDevice(devId);
if (inputDev.supportsSource(inputSource)) {
return devId;
}
}
return DEFAULT_DEVICE_ID;
}
/**
* Builds a MotionEvent and injects it into the event stream.
*
* @param inputSource the InputDevice.SOURCE_* sending the input event
* @param action the MotionEvent.ACTION_* for the event
* @param when the value of SystemClock.uptimeMillis() at which the event happened
* @param x x coordinate of event
* @param y y coordinate of event
* @param pressure pressure of event
*/
private void injectMotionEvent(int inputSource, int action, long when, float x, float y, float pressure) {
final float DEFAULT_SIZE = 1.0f;
final int DEFAULT_META_STATE = 0;
final float DEFAULT_PRECISION_X = 1.0f;
final float DEFAULT_PRECISION_Y = 1.0f;
final int DEFAULT_EDGE_FLAGS = 0;
MotionEvent event = MotionEvent.obtain(when, when, action, x, y, pressure, DEFAULT_SIZE,
DEFAULT_META_STATE, DEFAULT_PRECISION_X, DEFAULT_PRECISION_Y,
getInputDeviceId(inputSource), DEFAULT_EDGE_FLAGS);
event.setSource(inputSource);
Log.i(TAG, "injectMotionEvent: " + event);
InputManager.getInstance().injectInputEvent(event,
InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
}
private static final float lerp(float a, float b, float alpha) {
return (b - a) * alpha + a;
}
private static final int getSource(int inputSource, int defaultSource) {
return inputSource == InputDevice.SOURCE_UNKNOWN ? defaultSource : inputSource;
}
private void showUsage() {
System.err.println("Usage: input [<source>] <command> [<arg>...]");
System.err.println();
System.err.println("The sources are: ");
for (String src : SOURCES.keySet()) {
System.err.println(" " + src);
}
System.err.println();
System.err.println("The commands and default sources are:");
System.err.println(" text <string> (Default: touchscreen)");
System.err.println(" keyevent [--longpress] <key code number or name> ..."
+ " (Default: keyboard)");
System.err.println(" tap <x> <y> (Default: touchscreen)");
System.err.println(" swipe <x1> <y1> <x2> <y2> [duration(ms)]"
+ " (Default: touchscreen)");
System.err.println(" press (Default: trackball)");
System.err.println(" roll <dx> <dy> (Default: trackball)");
}
}