1 /*
2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.lwawt.macosx;
27
28 import java.awt.Point;
29 import java.awt.Rectangle;
30 import java.awt.Robot;
31 import java.awt.peer.RobotPeer;
32
33 import sun.awt.CGraphicsDevice;
34
35 final class CRobot implements RobotPeer {
36
37 private static final int MOUSE_LOCATION_UNKNOWN = -1;
38
39 private final CGraphicsDevice fDevice;
40 private int mouseLastX = MOUSE_LOCATION_UNKNOWN;
41 private int mouseLastY = MOUSE_LOCATION_UNKNOWN;
42
43 // OS X doesn't generate dragged event as a result of button press and
44 // mouse move events. This means that we have to track buttons state
45 // in order to generate dragged events ourselves.
46 private int mouseButtonsState = 0;
47
48 /**
49 * Uses the given GraphicsDevice as the coordinate system for subsequent
50 * coordinate calls.
51 */
52 public CRobot(Robot r, CGraphicsDevice d) {
53 fDevice = d;
54 initRobot();
55 }
56
57 /**
58 * Moves mouse pointer to given screen coordinates.
59 * @param x X position
60 * @param y Y position
61 */
62 @Override
63 public void mouseMove(int x, int y) {
64 mouseLastX = x;
65 mouseLastY = y;
66
67 mouseEvent(mouseLastX, mouseLastY, mouseButtonsState, true, true);
68 }
69
70 /**
71 * Presses one or more mouse buttons.
72 *
73 * @param buttons the button mask (combination of
74 * {@code InputEvent.BUTTON1/2/3_MASK})
75 */
76 @Override
77 public void mousePress(int buttons) {
78 mouseButtonsState |= buttons;
79 checkMousePos();
80 mouseEvent(mouseLastX, mouseLastY, buttons, true, false);
81 }
82
83 /**
84 * Releases one or more mouse buttons.
85 *
86 * @param buttons the button mask (combination of
87 * {@code InputEvent.BUTTON1/2/3_MASK})
88 */
89 @Override
90 public void mouseRelease(int buttons) {
91 mouseButtonsState &= ~buttons;
92 checkMousePos();
93 mouseEvent(mouseLastX, mouseLastY, buttons, false, false);
94 }
95
96 /**
97 * Set unknown mouse location, if needed.
98 */
99 private void checkMousePos() {
100 if (mouseLastX == MOUSE_LOCATION_UNKNOWN ||
101 mouseLastY == MOUSE_LOCATION_UNKNOWN) {
102
103 Rectangle deviceBounds = fDevice.getDefaultConfiguration().getBounds();
104 Point mousePos = CCursorManager.getInstance().getCursorPosition();
105
106 if (mousePos.x < deviceBounds.x) {
107 mousePos.x = deviceBounds.x;
108 }
109 else if (mousePos.x > deviceBounds.x + deviceBounds.width) {
110 mousePos.x = deviceBounds.x + deviceBounds.width;
111 }
112
113 if (mousePos.y < deviceBounds.y) {
114 mousePos.y = deviceBounds.y;
115 }
116 else if (mousePos.y > deviceBounds.y + deviceBounds.height) {
117 mousePos.y = deviceBounds.y + deviceBounds.height;
118 }
119
120 mouseLastX = mousePos.x;
121 mouseLastY = mousePos.y;
122 }
123 }
124
125 @Override
126 public native void mouseWheel(int wheelAmt);
127
128 /**
129 * Presses a given key.
130 * <p>
131 * Key codes that have more than one physical key associated with them
132 * (e.g. {@code KeyEvent.VK_SHIFT} could mean either the
133 * left or right shift key) will map to the left key.
134 * <p>
135 * Assumes that the
136 * peer implementations will throw an exception for other bogus
137 * values e.g. -1, 999999
138 *
139 * @param keycode the key to press (e.g. {@code KeyEvent.VK_A})
140 */
141 @Override
142 public void keyPress(final int keycode) {
143 keyEvent(keycode, true);
144 }
145
146 /**
147 * Releases a given key.
148 * <p>
149 * Key codes that have more than one physical key associated with them
150 * (e.g. {@code KeyEvent.VK_SHIFT} could mean either the
151 * left or right shift key) will map to the left key.
152 * <p>
153 * Assumes that the
154 * peer implementations will throw an exception for other bogus
155 * values e.g. -1, 999999
156 *
157 * @param keycode the key to release (e.g. {@code KeyEvent.VK_A})
158 */
159 @Override
160 public void keyRelease(final int keycode) {
161 keyEvent(keycode, false);
162 }
163
164 /**
165 * Returns the color of a pixel at the given screen coordinates.
166 * @param x X position of pixel
167 * @param y Y position of pixel
168 * @return color of the pixel
169 */
170 @Override
171 public int getRGBPixel(int x, int y) {
172 int[] c = new int[1];
173 double scale = fDevice.getScaleFactor();
174 getScreenPixels(new Rectangle(x, y, (int) scale, (int) scale), c);
175 return c[0];
176 }
177
178 /**
179 * Creates an image containing pixels read from the screen.
180 * @param bounds the rect to capture in screen coordinates
181 * @return the array of pixels
182 */
183 @Override
184 public int [] getRGBPixels(final Rectangle bounds) {
185 int[] c = new int[bounds.width * bounds.height];
186 getScreenPixels(bounds, c);
187
188 return c;
189 }
190
191 private native void initRobot();
192 private native void mouseEvent(int lastX, int lastY, int buttonsState,
193 boolean isButtonsDownState,
194 boolean isMouseMove);
195 private native void keyEvent(int javaKeyCode, boolean keydown);
196 private void getScreenPixels(Rectangle r, int[] pixels){
197 double scale = fDevice.getScaleFactor();
198 nativeGetScreenPixels(r.x, r.y, r.width, r.height, scale, pixels);
199 }
200 private native void nativeGetScreenPixels(int x, int y, int width, int height, double scale, int[] pixels);
201 }