1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.commands.input;
18
19import android.hardware.input.InputManager;
20import android.os.SystemClock;
21import android.util.Log;
22import android.view.InputDevice;
23import android.view.KeyCharacterMap;
24import android.view.KeyEvent;
25import android.view.MotionEvent;
26
27/**
28 * Command that sends key events to the device, either by their keycode, or by
29 * desired character output.
30 */
31
32public class Input {
33    private static final String TAG = "Input";
34
35    /**
36     * Command-line entry point.
37     *
38     * @param args The command-line arguments
39     */
40    public static void main(String[] args) {
41        (new Input()).run(args);
42    }
43
44    private void run(String[] args) {
45        if (args.length < 1) {
46            showUsage();
47            return;
48        }
49
50        String command = args[0];
51
52        try {
53            if (command.equals("text")) {
54                if (args.length == 2) {
55                    sendText(args[1]);
56                    return;
57                }
58            } else if (command.equals("keyevent")) {
59                if (args.length == 2) {
60                    int keyCode = KeyEvent.keyCodeFromString(args[1]);
61                    if (keyCode == KeyEvent.KEYCODE_UNKNOWN) {
62                        keyCode = KeyEvent.keyCodeFromString("KEYCODE_" + args[1]);
63                    }
64                    sendKeyEvent(keyCode);
65                    return;
66                }
67            } else if (command.equals("tap")) {
68                if (args.length == 3) {
69                    sendTap(Float.parseFloat(args[1]), Float.parseFloat(args[2]));
70                    return;
71                }
72            } else if (command.equals("swipe")) {
73                if (args.length == 5) {
74                    sendSwipe(Float.parseFloat(args[1]), Float.parseFloat(args[2]),
75                            Float.parseFloat(args[3]), Float.parseFloat(args[4]));
76                    return;
77                }
78            } else {
79                System.err.println("Error: Unknown command: " + command);
80                showUsage();
81                return;
82            }
83        } catch (NumberFormatException ex) {
84        }
85        System.err.println("Error: Invalid arguments for command: " + command);
86        showUsage();
87    }
88
89    /**
90     * Convert the characters of string text into key event's and send to
91     * device.
92     *
93     * @param text is a string of characters you want to input to the device.
94     */
95    private void sendText(String text) {
96
97        StringBuffer buff = new StringBuffer(text);
98
99        boolean escapeFlag = false;
100        for (int i=0; i<buff.length(); i++) {
101            if (escapeFlag) {
102                escapeFlag = false;
103                if (buff.charAt(i) == 's') {
104                    buff.setCharAt(i, ' ');
105                    buff.deleteCharAt(--i);
106                }
107            }
108            if (buff.charAt(i) == '%') {
109                escapeFlag = true;
110            }
111        }
112
113        char[] chars = buff.toString().toCharArray();
114
115        KeyCharacterMap kcm = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
116        KeyEvent[] events = kcm.getEvents(chars);
117        for(int i = 0; i < events.length; i++) {
118            injectKeyEvent(events[i]);
119        }
120    }
121
122    private void sendKeyEvent(int keyCode) {
123        long now = SystemClock.uptimeMillis();
124        injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 0, 0,
125                KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, InputDevice.SOURCE_KEYBOARD));
126        injectKeyEvent(new KeyEvent(now, now, KeyEvent.ACTION_UP, keyCode, 0, 0,
127                KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 0, InputDevice.SOURCE_KEYBOARD));
128    }
129
130    private void sendTap(float x, float y) {
131        long now = SystemClock.uptimeMillis();
132        injectPointerEvent(MotionEvent.obtain(now, now, MotionEvent.ACTION_DOWN, x, y, 0));
133        injectPointerEvent(MotionEvent.obtain(now, now, MotionEvent.ACTION_UP, x, y, 0));
134    }
135
136    private void sendSwipe(float x1, float y1, float x2, float y2) {
137        final int NUM_STEPS = 11;
138        long now = SystemClock.uptimeMillis();
139        injectPointerEvent(MotionEvent.obtain(now, now, MotionEvent.ACTION_DOWN, x1, y1, 0));
140        for (int i = 1; i < NUM_STEPS; i++) {
141            float alpha = (float)i / NUM_STEPS;
142            injectPointerEvent(MotionEvent.obtain(now, now, MotionEvent.ACTION_MOVE,
143                    lerp(x1, x2, alpha), lerp(y1, y2, alpha), 0));
144        }
145        injectPointerEvent(MotionEvent.obtain(now, now, MotionEvent.ACTION_UP, x2, y2, 0));
146    }
147
148    private void injectKeyEvent(KeyEvent event) {
149        Log.i(TAG, "InjectKeyEvent: " + event);
150        InputManager.getInstance().injectInputEvent(event,
151                InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
152    }
153
154    private void injectPointerEvent(MotionEvent event) {
155        event.setSource(InputDevice.SOURCE_TOUCHSCREEN);
156        Log.i("Input", "InjectPointerEvent: " + event);
157        InputManager.getInstance().injectInputEvent(event,
158                InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
159    }
160
161    private static final float lerp(float a, float b, float alpha) {
162        return (b - a) * alpha + a;
163    }
164
165    private void showUsage() {
166        System.err.println("usage: input ...");
167        System.err.println("       input text <string>");
168        System.err.println("       input keyevent <key code number or name>");
169        System.err.println("       input tap <x> <y>");
170        System.err.println("       input swipe <x1> <y1> <x2> <y2>");
171    }
172}
173