1 /*
2 * Copyright (c) 2010, 2015, 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 package sun.awt.X11;
26
27 import java.awt.FileDialog;
28 import java.awt.peer.FileDialogPeer;
29 import java.io.File;
30 import java.io.FilenameFilter;
31 import sun.awt.AWTAccessor;
32
33 /**
34 * FileDialogPeer for the GtkFileChooser.
35 *
36 * @author Costantino Cerbo (c.cerbo@gmail.com)
37 */
38 final class GtkFileDialogPeer extends XDialogPeer implements FileDialogPeer {
39
40 private final FileDialog fd;
41
42 // A pointer to the native GTK FileChooser widget
43 private volatile long widget = 0L;
44 private long standaloneWindow;
45 private volatile boolean quit;
46
47 GtkFileDialogPeer(FileDialog fd) {
48 super(fd);
49 this.fd = fd;
50 }
51
52 private static native void initIDs();
53 static {
54 initIDs();
55 }
56
57 private native void run(String title, int mode, String dir, String file,
58 FilenameFilter filter, boolean isMultipleMode, int x, int y);
59 private native void quit();
60
61 @Override
62 public native void toFront();
63
64 @Override
65 public native void setBounds(int x, int y, int width, int height, int op);
66
67 /**
68 * Called exclusively by the native C code.
69 */
70 private void setFileInternal(String directory, String[] filenames) {
71 AWTAccessor.FileDialogAccessor accessor = AWTAccessor
72 .getFileDialogAccessor();
73
74 if (filenames == null) {
75 accessor.setDirectory(fd, null);
76 accessor.setFile(fd, null);
77 accessor.setFiles(fd, null);
78 } else {
79 // Fix 6987233: add the trailing slash if it's absent
80 String with_separator = directory;
81 if (directory != null) {
82 with_separator = directory.endsWith(File.separator) ?
83 directory : (directory + File.separator);
84 }
85 accessor.setDirectory(fd, with_separator);
86 accessor.setFile(fd, filenames[0]);
87
88 int filesNumber = (filenames != null) ? filenames.length : 0;
89 File[] files = new File[filesNumber];
90 for (int i = 0; i < filesNumber; i++) {
91 files[i] = new File(directory, filenames[i]);
92 }
93 accessor.setFiles(fd, files);
94 }
95 }
96
97 /**
98 * Called exclusively by the native C code.
99 */
100 private boolean filenameFilterCallback(String fullname) {
101 if (fd.getFilenameFilter() == null) {
102 // no filter, accept all.
103 return true;
104 }
105
106 File filen = new File(fullname);
107 return fd.getFilenameFilter().accept(new File(filen.getParent()),
108 filen.getName());
109 }
110
111 @Override
112 public void setVisible(boolean b) {
113 if (isDisposed()) {
114 return;
115 }
116 XToolkit.awtLock();
117 try {
118 quit = !b;
119 if (b) {
120 Runnable task = () -> {
121 showNativeDialog();
122 standaloneWindow = 0;
123 fd.setVisible(false);
124 };
125 new Thread(null, task, "ShowDialog", 0, false).start();
126 } else {
127 quit();
128 fd.setVisible(false);
129 }
130 } finally {
131 XToolkit.awtUnlock();
132 }
133 }
134
135 @Override
136 public void dispose() {
137 XToolkit.awtLock();
138 try {
139 quit = true;
140 quit();
141 }
142 finally {
143 XToolkit.awtUnlock();
144 }
145 super.dispose();
146 }
147
148 @Override
149 public void setDirectory(String dir) {
150 // We do not implement this method because we
151 // have delegated to FileDialog#setDirectory
152 }
153
154 @Override
155 public void setFile(String file) {
156 // We do not implement this method because we
157 // have delegated to FileDialog#setFile
158 }
159
160 protected void requestXFocus(long time, boolean timeProvided) {
161 if(standaloneWindow == 0) {
162 super.requestXFocus(time, timeProvided);
163 return;
164 }
165 XNETProtocol net_protocol = XWM.getWM().getNETProtocol();
166 if (net_protocol != null) {
167 net_protocol.setActiveWindow(standaloneWindow);
168 }
169 }
170
171 @Override
172 public void setFilenameFilter(FilenameFilter filter) {
173 // We do not implement this method because we
174 // have delegated to FileDialog#setFilenameFilter
175 }
176
177 private void showNativeDialog() {
178 String dirname = fd.getDirectory();
179 // File path has a priority against directory path.
180 String filename = fd.getFile();
181 if (filename != null) {
182 final File file = new File(filename);
183 if (fd.getMode() == FileDialog.LOAD
184 && dirname != null
185 && file.getParent() == null) {
186 // File path for gtk_file_chooser_set_filename.
187 filename = dirname + (dirname.endsWith(File.separator) ? "" :
188 File.separator) + filename;
189 }
190 if (fd.getMode() == FileDialog.SAVE && file.getParent() != null) {
191 // Filename for gtk_file_chooser_set_current_name.
192 filename = file.getName();
193 // Directory path for gtk_file_chooser_set_current_folder.
194 dirname = file.getParent();
195 }
196 }
197 if (!quit) {
198 run(fd.getTitle(), fd.getMode(), dirname, filename,
199 fd.getFilenameFilter(), fd.isMultipleMode(), fd.getX(), fd.getY());
200 }
201 }
202
203 /**
204 * Called by native code when GTK dialog is created.
205 */
206 boolean setWindow(long xid) {
207 if (!quit && widget != 0) {
208 standaloneWindow = xid;
209 requestXFocus();
210 return true;
211 }
212 return false;
213 }
214 }