1 /*
2 * Copyright 2010 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25 package sun.awt.X11;
26
27 import java.awt.*;
28 import javax.swing.*;
29 import java.awt.event.*;
30 import java.awt.peer.*;
31 import java.io.*;
32 import java.util.Locale;
33 import sun.util.logging.PlatformLogger;
34 import sun.awt.AWTAccessor;
35
36 /**
37 * DirectoryDialogPeer for X-Windows.
38 *
39 * @author Costantino Cerbo (c.cerbo@gmail.com)
40 */
41 class XDirectoryDialogPeer extends XDialogPeer implements DirectoryDialogPeer,
42 ActionListener, ItemListener, KeyEventDispatcher, XChoicePeerListener {
43
44 private static final PlatformLogger log = PlatformLogger
45 .getLogger("sun.awt.X11.XFileDialogPeer");
46 private static final int PATH_CHOICE_WIDTH = 20;
47
48 private DirectoryDialog directoryDialog;
49
50 // ************** Components in the fileDialogWindow ***************
51 private List directoryList;
52 private Choice pathChoice;
53 private TextField pathField;
54 private String dir;
55
56 XDirectoryDialogPeer(DirectoryDialog directoryDialog) {
57 super((Dialog) directoryDialog);
58 this.directoryDialog = directoryDialog;
59 if (directoryDialog.getDirectory() == null) {
60 AWTAccessor.getDirectoryDialogAccessor().setDirectory(
61 directoryDialog, System.getProperty("user.dir"));
62 }
63 this.dir = directoryDialog.getDirectory();
64
65 Locale l = directoryDialog.getLocale();
66 UIDefaults uid = XToolkit.getUIDefaults();
67
68 GridBagLayout gbl = new GridBagLayout();
69 GridBagLayout gblButtons = new GridBagLayout();
70 GridBagConstraints gbc = new GridBagConstraints();
71 directoryDialog.setLayout(gbl);
72 directoryDialog.setMinimumSize(new Dimension(400, 400));
73
74 // create components
75 Panel buttons = new Panel();
76 buttons.setLayout(gblButtons);
77 Button openButton = new Button(uid.getString(
78 "FileChooser.openButtonText", l));
79 openButton.setActionCommand("openButton");
80
81 Button cancelButton = new Button(uid.getString(
82 "FileChooser.cancelButtonText", l));
83 cancelButton.setActionCommand("cancelButton");
84
85 directoryList = new List();
86
87 // the insets used by the components in the dialog
88 Insets noInset = new Insets(0, 0, 0, 0);
89 Insets textFieldInset = new Insets(0, 8, 0, 8);
90 Insets leftListInset = new Insets(0, 8, 0, 4);
91 Insets separatorInset = new Insets(8, 0, 0, 0);
92 Insets labelInset = new Insets(0, 8, 0, 0);
93 Insets buttonsInset = new Insets(10, 8, 10, 8);
94
95 // add components to GridBagLayout "gbl"
96
97 Font f = new Font(Font.DIALOG, Font.PLAIN, 12);
98
99 Label label = new Label(uid.getString("FileChooser.pathLabelText", l));
100 label.setFont(f);
101 addComponent(label, gbl, gbc, 0, 0, 1, GridBagConstraints.WEST,
102 (Container) directoryDialog, 1, 0, GridBagConstraints.NONE,
103 labelInset);
104
105 pathField = new TextField(dir);
106 listFolders(dir);
107
108 pathChoice = new Choice() {
109
110 @Override
111 public Dimension getPreferredSize() {
112 return new Dimension(PATH_CHOICE_WIDTH, pathField
113 .getPreferredSize().height);
114 }
115 };
116 Panel pathPanel = new Panel();
117 pathPanel.setLayout(new BorderLayout());
118
119 pathPanel.add(pathField, BorderLayout.CENTER);
120 pathPanel.add(pathChoice, BorderLayout.EAST);
121 addComponent(pathPanel, gbl, gbc, 0, 1, 2, GridBagConstraints.WEST,
122 (Container) directoryDialog, 1, 0,
123 GridBagConstraints.HORIZONTAL, textFieldInset);
124
125 label = new Label(uid.getString("FileChooser.foldersLabelText", l));
126
127 label.setFont(f);
128 addComponent(label, gbl, gbc, 0, 4, 1, GridBagConstraints.WEST,
129 (Container) directoryDialog, 1, 0, GridBagConstraints.NONE,
130 labelInset);
131 addComponent(directoryList, gbl, gbc, 0, 5, 1, GridBagConstraints.WEST,
132 (Container) directoryDialog, 1, 1, GridBagConstraints.BOTH,
133 leftListInset);
134
135 // Separator
136 addComponent(new Separator(directoryDialog.getSize().width, 2,
137 Separator.HORIZONTAL), gbl, gbc, 0, 8, 15,
138 GridBagConstraints.WEST, (Container) directoryDialog, 1, 0,
139 GridBagConstraints.HORIZONTAL, separatorInset);
140
141 // add buttons to GridBagLayout Buttons
142 addComponent(openButton, gblButtons, gbc, 0, 0, 1,
143 GridBagConstraints.WEST, (Container) buttons, 1, 0,
144 GridBagConstraints.NONE, noInset);
145 addComponent(cancelButton, gblButtons, gbc, 2, 0, 1,
146 GridBagConstraints.EAST, (Container) buttons, 1, 0,
147 GridBagConstraints.NONE, noInset);
148
149 // add ButtonPanel to the GridBagLayout of this class
150 addComponent(buttons, gbl, gbc, 0, 9, 2, GridBagConstraints.WEST,
151 (Container) directoryDialog, 1, 0,
152 GridBagConstraints.HORIZONTAL, buttonsInset);
153
154 directoryList.addActionListener(this);
155 openButton.addActionListener(this);
156 cancelButton.addActionListener(this);
157 pathChoice.addItemListener(this);
158 pathField.addActionListener(this);
159
160 // b6227750 FileDialog is not disposed when clicking the 'close' (X)
161 // button on the top right corner, XToolkit
162 directoryDialog.addWindowListener(new WindowAdapter() {
163
164 @Override
165 public void windowClosing(WindowEvent e) {
166 handleCancel();
167 }
168 });
169 }
170
171 @Override
172 public void updateIconImages() {
173 if (winAttr.icons == null) {
174 winAttr.iconsInherited = false;
175 winAttr.icons = getDefaultIconInfo();
176 setIconHints(winAttr.icons);
177 }
178 }
179
180 /**
181 * add Component comp to the container cont. add the component to the
182 * correct GridBagLayout
183 */
184 private void addComponent(Component comp, GridBagLayout gb,
185 GridBagConstraints c, int gridx, int gridy, int gridwidth,
186 int anchor, Container cont, int weightx, int weighty, int fill,
187 Insets in) {
188 c.gridx = gridx;
189 c.gridy = gridy;
190 c.gridwidth = gridwidth;
191 c.anchor = anchor;
192 c.weightx = weightx;
193 c.weighty = weighty;
194 c.fill = fill;
195 c.insets = in;
196 gb.setConstraints(comp, c);
197 cont.add(comp);
198 }
199
200 /**
201 * handle the selection event
202 */
203 private void handleSelection() {
204 String newDir = pathField.getText() + File.separator;
205 if (directoryList.getSelectedItem() != null) {
206 if (!newDir.endsWith(File.separator)) {
207 newDir += File.separator;
208 }
209 newDir += directoryList.getSelectedItem();
210 }
211
212 if (newDir.equals(dir)) {
213 return;
214 }
215
216 listFolders(newDir);
217 setDirectory(newDir);
218 }
219
220 @Override
221 public void setDirectory(String dir) {
222 if (dir == null) {
223 this.dir = null;
224 return;
225 }
226
227 if (dir.equals(this.dir)) {
228 return;
229 }
230
231 int i;
232 if ((i = dir.indexOf("~")) != -1) {
233 dir = dir.substring(0, i) + System.getProperty("user.home")
234 + dir.substring(i + 1, dir.length());
235 }
236
237 File fe = new File(dir).getAbsoluteFile();
238 log.fine("Current directory : " + fe);
239
240 if (!fe.isDirectory()) {
241 dir = "./";
242 fe = new File(dir).getAbsoluteFile();
243
244 if (!fe.isDirectory()) {
245 return;
246 }
247 }
248 try {
249 dir = this.dir = fe.getCanonicalPath();
250 } catch (java.io.IOException ie) {
251 dir = this.dir = fe.getAbsolutePath();
252 }
253 pathField.setText(this.dir);
254
255 if (dir.endsWith("/")) {
256 this.dir = dir;
257 } else {
258 this.dir = dir + "/";
259 }
260
261 AWTAccessor.getDirectoryDialogAccessor().setDirectory(directoryDialog,
262 this.dir);
263 }
264
265 private void listFolders(String folder) {
266 File[] files = new File(folder).listFiles();
267 java.util.Arrays.sort(files);
268 directoryList.clear();
269 directoryList.addItem("..");
270 for (File file : files) {
271 if (file.isDirectory()) {
272 directoryList.addItem(file.getName() + "/");
273 }
274 }
275 }
276
277 /**
278 * handle the cancel event
279 */
280 private void handleCancel() {
281 KeyboardFocusManager.getCurrentKeyboardFocusManager()
282 .removeKeyEventDispatcher(this);
283
284 directoryList.clear();
285
286 AWTAccessor.getDirectoryDialogAccessor().setDirectory(directoryDialog,
287 null);
288
289 handleQuitButton();
290 }
291
292 /**
293 * handle the quit event
294 */
295 private void handleQuitButton() {
296 dir = null;
297 directoryDialog.setVisible(false);
298 }
299
300 private String[] getDirList(String dir) {
301 if (!dir.endsWith("/")) {
302 dir = dir + "/";
303 }
304 char[] charr = dir.toCharArray();
305 int numSlashes = 0;
306 for (int i = 0; i < charr.length; i++) {
307 if (charr[i] == '/') {
308 numSlashes++;
309 }
310 }
311 String[] starr = new String[numSlashes];
312 int j = 0;
313 for (int i = charr.length - 1; i >= 0; i--) {
314 if (charr[i] == '/') {
315 starr[j++] = new String(charr, 0, i + 1);
316 }
317 }
318 return starr;
319 }
320
321 /**
322 *
323 * @see java.awt.event.ItemEvent ItemEvent.ITEM_STATE_CHANGED
324 */
325 public void itemStateChanged(ItemEvent itemEvent) {
326 if (itemEvent.getID() != ItemEvent.ITEM_STATE_CHANGED
327 || itemEvent.getStateChange() == ItemEvent.DESELECTED) {
328 return;
329 }
330
331 Object source = itemEvent.getSource();
332 if (source == pathChoice) {
333 /*
334 * Update the selection ('folder name' text field) after the current
335 * item changing in the unfurled choice by the arrow keys. See
336 * 6259434, 6240074 for more information
337 */
338
339 String selectedDir = pathChoice.getSelectedItem();
340 pathField.setText(selectedDir);
341 handleSelection();
342 }
343 }
344
345 public void actionPerformed(ActionEvent actionEvent) {
346 String actionCommand = actionEvent.getActionCommand();
347 Object source = actionEvent.getSource();
348
349 if (actionCommand.equals("openButton")) {
350 handleQuitButton();
351 } else if (actionCommand.equals("cancelButton")) {
352 handleCancel();
353 } else if (source == pathField || source == directoryList) {
354 handleSelection();
355 }
356 }
357
358 public boolean dispatchKeyEvent(KeyEvent keyEvent) {
359 int id = keyEvent.getID();
360 int keyCode = keyEvent.getKeyCode();
361
362 if (id == KeyEvent.KEY_PRESSED && keyCode == KeyEvent.VK_ESCAPE) {
363 synchronized (directoryDialog.getTreeLock()) {
364 Component comp = (Component) keyEvent.getSource();
365 while (comp != null) {
366 // Fix for 6240084 Disposing a file dialog when the
367 // drop-down is active does not dispose the dropdown menu,
368 // on Xtoolkit
369 // See also 6259493
370 if (comp == pathChoice) {
371 XChoicePeer choicePeer = (XChoicePeer) pathChoice
372 .getPeer();
373 if (choicePeer.isUnfurled()) {
374 return false;
375 }
376 }
377 if (comp.getPeer() == this) {
378 handleCancel();
379 return true;
380 }
381 comp = comp.getParent();
382 }
383 }
384 }
385
386 return false;
387 }
388
389 @Override
390 public void dispose() {
391 if (directoryDialog != null) {
392 directoryDialog.removeAll();
393 }
394 if (target != null) {
395 ((Dialog) target).removeAll();
396 }
397 super.dispose();
398 }
399
400 // 03/02/2005 b5097243 Pressing 'ESC' on a file dlg does not dispose the dlg
401 // on Xtoolkit
402 @Override
403 public void setVisible(boolean b) {
404 super.setVisible(b);
405 if (b == true) {
406 // See 6240074 for more information
407 XChoicePeer choicePeer = (XChoicePeer) pathChoice.getPeer();
408 choicePeer.setDrawSelectedItem(false);
409 choicePeer.setAlignUnder(pathField);
410 choicePeer.addXChoicePeerListener(this);
411 KeyboardFocusManager.getCurrentKeyboardFocusManager()
412 .addKeyEventDispatcher(this);
413 } else {
414 // See 6240074 for more information
415 XChoicePeer choicePeer = (XChoicePeer) pathChoice.getPeer();
416 choicePeer.removeXChoicePeerListener();
417 KeyboardFocusManager.getCurrentKeyboardFocusManager()
418 .removeKeyEventDispatcher(this);
419 }
420 }
421
422 /*
423 * Adding items to the path choice based on the text string See 6240074 for
424 * more information
425 */
426 public void addItemsToPathChoice(String text) {
427 String dirList[] = getDirList(text);
428 for (int i = 0; i < dirList.length; i++) {
429 pathChoice.addItem(dirList[i]);
430 }
431 }
432
433 /*
434 * Refresh the unfurled choice at the time of the opening choice according
435 * to the text of the path field See 6240074 for more information
436 */
437 public void unfurledChoiceOpening(ListHelper choiceHelper) {
438
439 // When the unfurled choice is opening the first time, we need only to
440 // add elements, otherwise we've got exception
441 if (choiceHelper.getItemCount() == 0) {
442 addItemsToPathChoice(pathField.getText());
443 return;
444 }
445
446 // If the set of the directories the exactly same as the used to be then
447 // dummy
448 if (pathChoice.getItem(0).equals(pathField.getText())) {
449 return;
450 }
451
452 pathChoice.removeAll();
453 addItemsToPathChoice(pathField.getText());
454 }
455
456 /*
457 * Refresh the file dialog at the time of the closing choice according to
458 * the selected item of the choice See 6240074 for more information
459 */
460 public void unfurledChoiceClosing() {
461 // This is the exactly same code as invoking later at the time of the
462 // itemStateChanged
463 // Here is we restore Windows behaviour: change current directory if
464 // user press 'ESC'
465 String selectedDir = pathChoice.getSelectedItem();
466 directoryDialog.setDirectory(selectedDir);
467 }
468 }