/*
* 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;
/**
* 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";
/**
* 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;
}
String command = args[0];
try {
if (command.equals("text")) {
if (args.length == 2) {
sendText(args[1]);
return;
}
} else if (command.equals("keyevent")) {
if (args.length == 2) {
int keyCode = KeyEvent.keyCodeFromString(args[1]);
if (keyCode == KeyEvent.KEYCODE_UNKNOWN) {
keyCode = KeyEvent.keyCodeFromString("KEYCODE_" + args[1]);
}
sendKeyEvent(keyCode);
return;
}
} else if (command.equals("tap")) {
if (args.length == 3) {
sendTap(InputDevice.SOURCE_TOUCHSCREEN, Float.parseFloat(args[1]), Float.parseFloat(args[2]));
return;
}
} else if (command.equals("swipe")) {
if (args.length == 5) {
sendSwipe(InputDevice.SOURCE_TOUCHSCREEN, Float.parseFloat(args[1]), Float.parseFloat(args[2]),
Float.parseFloat(args[3]), Float.parseFloat(args[4]));
return;
}
} else if (command.equals("touchscreen") || command.equals("touchpad")) {
// determine input source
int inputSource = InputDevice.SOURCE_TOUCHSCREEN;
if (command.equals("touchpad")) {
inputSource = InputDevice.SOURCE_TOUCHPAD;
}
// determine subcommand
if (args.length > 1) {
String subcommand = args[1];
if (subcommand.equals("tap")) {
if (args.length == 4) {
sendTap(inputSource, Float.parseFloat(args[2]),
Float.parseFloat(args[3]));
return;
}
} else if (subcommand.equals("swipe")) {
if (args.length == 6) {
sendSwipe(inputSource, Float.parseFloat(args[2]),
Float.parseFloat(args[3]), Float.parseFloat(args[4]),
Float.parseFloat(args[5]));
return;
}
}
}
} else if (command.equals("trackball")) {
// determine subcommand
if (args.length > 1) {
String subcommand = args[1];
if (subcommand.equals("press")) {
sendTap(InputDevice.SOURCE_TRACKBALL, 0.0f, 0.0f);
return;
} else if (subcommand.equals("roll")) {
if (args.length == 4) {
sendMove(InputDevice.SOURCE_TRACKBALL, Float.parseFloat(args[2]),
Float.parseFloat(args[3]));
return;
}
}
}
} else {
System.err.println("Error: Unknown command: " + command);
showUsage();
return;
}
} catch (NumberFormatException ex) {
}
System.err.println("Error: Invalid arguments for command: " + 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(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++) {
injectKeyEvent(events[i]);
}
}
private void sendKeyEvent(int keyCode) {
long now = SystemClock.uptimeMillis();
injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, InputDevice.SOURCE_KEYBOARD));
injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_UP, keyCode, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, InputDevice.SOURCE_KEYBOARD));
}
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) {
final int NUM_STEPS = 11;
long now = SystemClock.uptimeMillis();
injectMotionEvent(inputSource, MotionEvent.ACTION_DOWN, now, x1, y1, 1.0f);
for (int i = 1; i < NUM_STEPS; i++) {
float alpha = (float) i / NUM_STEPS;
injectMotionEvent(inputSource, MotionEvent.ACTION_MOVE, now, lerp(x1, x2, alpha),
lerp(y1, y2, alpha), 1.0f);
}
injectMotionEvent(inputSource, MotionEvent.ACTION_UP, now, x1, y1, 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);
}
/**
* 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_DEVICE_ID = 0;
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, DEFAULT_DEVICE_ID,
DEFAULT_EDGE_FLAGS);
event.setSource(inputSource);
Log.i("Input", "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 void showUsage() {
System.err.println("usage: input ...");
System.err.println(" input text <string>");
System.err.println(" input keyevent <key code number or name>");
System.err.println(" input [touchscreen|touchpad] tap <x> <y>");
System.err.println(" input [touchscreen|touchpad] swipe <x1> <y1> <x2> <y2>");
System.err.println(" input trackball press");
System.err.println(" input trackball roll <dx> <dy>");
}
}