1 /*
2 * Copyright (c) 2007, 2010, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 test
26 @bug 6497109
27 @summary TextArea must have selection expanding, and also be autoscrolled, if mouse is dragged from inside.
28 @author Konstantin Voloshin: area=TextArea
29 @run applet SelectionAutoscrollTest.html
30 */
31
32 /**
33 * SelectionAutoscrollTest.java
34 *
35 * summary: TextArea should be auto-scrolled and text should be selected to
36 * the end, if mouse is dragged from inside box-for-text to outside it, and
37 * is hold pressed there.
38 */
39
40
41 import java.applet.Applet;
42 import java.awt.Frame;
43 import java.awt.Panel;
44 import java.awt.GridLayout;
45 import java.awt.TextArea;
46
47 import java.awt.Point;
48 import java.awt.Dimension;
49 import java.awt.event.MouseEvent;
50 import java.awt.Robot;
51 import java.awt.Toolkit;
52 import test.java.awt.regtesthelpers.Util;
53
54
55 public class SelectionAutoscrollTest extends Applet {
56 TextArea textArea;
57 Robot robot;
58 final int desiredSelectionEnd = ('z'-'a'+1)*2; // 52
59 final static int SCROLL_DELAY = 10; // ms
60
61 public void start () {
62 createObjects();
63 manipulateMouse();
64 checkResults();
65 }
66
67 void createObjects() {
68 textArea = new TextArea( bigString() );
69 robot = Util.createRobot();
70
71 Panel panel = new Panel();
72 panel.setLayout( new GridLayout(3,3) );
73
74 for( int y=0; y<3; ++y ) {
75 for( int x=0; x<3; ++x ) {
76 if( x==1 && y==1 ) {
77 panel.add( textArea );
78 } else {
79 panel.add( new Panel() );
80 }
81 }
82 }
83
84 Frame frame = new Frame( "TextArea cursor icon test" );
85 frame.setSize( 300, 300 );
86 frame.add( panel );
87 frame.setVisible( true );
88 }
89
90 static String bigString() {
91 String s = "";
92 for( char c='a'; c<='z'; ++c ) {
93 s += c+"\n";
94 }
95 return s;
96 }
97
98 void manipulateMouse() {
99 moveMouseToCenterOfTextArea();
100 Util.waitForIdle( robot );
101
102 robot.mousePress( MouseEvent.BUTTON1_MASK );
103 Util.waitForIdle( robot );
104
105 for( int tremble=0; tremble < desiredSelectionEnd; ++tremble ) {
106 // Mouse is moved repeatedly here (with conservatively chosen
107 // ammount of times), to give some time/chance for TextArea to
108 // autoscroll and for text-selection to expand to the end.
109 // This is because:
110 // - On Windows,
111 // autoscrolling and selection-expansion happens only once per
112 // each mouse-dragged event received, and only for some ammount,
113 // not to the end. So, we have to drag mouse repeatedly.
114 // - on X,
115 // only 1 mouse-dragged event is required for autoscrolling/
116 // selection-expanding to commence. Once commenced, it will
117 // continue to the end of text (provided that mouse-button is
118 // hold pressed), but it may take hardly predictable ammount of
119 // time. However, repeatedly dragging mouse seems perfectly help
120 // here, instead of having to use 'Thread.sleep( ??? )'.
121 // Note: It's required here to move mouse 2 times to receive the
122 // 1-st drag-event. After 1-st movement, only mouse-exited event
123 // will be generated. If mouse was released after first movement
124 // here, we would even get mouse-clicked event (at least for now,
125 // and this is probably a bug). But, starting with 2nd iteration,
126 // all events received will be mouse-dragged events.
127
128 moveMouseBelowTextArea( tremble%2!=0 );
129 Util.waitForIdle( robot );
130 // it is needed to add some small delay on Gnome
131 waitUntilScrollIsPerformed(robot);
132 }
133
134 robot.mouseRelease( MouseEvent.BUTTON1_MASK );
135 Util.waitForIdle( robot );
136 }
137
138 void moveMouseToCenterOfTextArea() {
139 Dimension d = textArea.getSize();
140 Point l = textArea.getLocationOnScreen();
141 robot.mouseMove( (int)(l.x+d.width*.5), (int)(l.y+d.height*.5) );
142 }
143
144 void moveMouseBelowTextArea( boolean shift ) {
145 Dimension d = textArea.getSize();
146 Point l = textArea.getLocationOnScreen();
147 int x = (int)(l.x+d.width*.5);
148 int y = (int)(l.y+d.height*1.5);
149 if( shift ) y+=15;
150 robot.mouseMove( x, y );
151 }
152
153 void waitUntilScrollIsPerformed(Robot robot) {
154 try {
155 Thread.sleep( SCROLL_DELAY );
156 }
157 catch( Exception e ) {
158 throw new RuntimeException( e );
159 }
160 }
161
162 void checkResults() {
163 //try { Thread.sleep( 30*1000 ); }
164 //catch( Exception e ) { throw new RuntimeException( e ); }
165
166 final int currentSelectionEnd = textArea.getSelectionEnd();
167
168 System.out.println(
169 "TEST: Selection range after test is: ( "
170 + textArea.getSelectionStart() + ", "
171 + currentSelectionEnd + " )"
172 );
173
174 boolean resultOk = ( currentSelectionEnd == desiredSelectionEnd );
175 String desiredSelectionEndString = "" + desiredSelectionEnd;
176
177 // On Windows, last empty line is surprisingly not selected.
178 // Even if it's a bug, it's not for this test.
179 // So, we have 2 acceptable results in this case.
180 String toolkitName = Toolkit.getDefaultToolkit().getClass().getName();
181 if( toolkitName.equals("sun.awt.windows.WToolkit") ) {
182 final int desiredSelectionEnd2 = desiredSelectionEnd-1; // 51
183 resultOk |= ( currentSelectionEnd == desiredSelectionEnd2 );
184 desiredSelectionEndString += " or " + desiredSelectionEnd2;
185 }
186
187 if( resultOk ) {
188 System.out.println(
189 "TEST: passed: Text is selected to the end"
190 + " (expected selection range end is "
191 + desiredSelectionEndString + ")."
192 );
193 } else {
194 System.out.println(
195 "TEST: FAILED: Text should be selected to the end"
196 + " (selection range end should be "
197 + desiredSelectionEndString + ")."
198 );
199 throw new RuntimeException(
200 "TEST: FAILED: Text should be selected to the end, but it is not."
201 );
202 }
203 }
204 }