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14
15 package desktop;
16
17 import org.wings.*;
18 import org.wings.event.SInternalFrameEvent;
19 import org.wings.event.SInternalFrameListener;
20 import org.wings.externalizer.AbstractExternalizeManager;
21 import org.wings.externalizer.ExternalizeManager;
22 import org.wings.io.Device;
23 import org.wings.resource.DynamicResource;
24 import org.wings.resource.FileResource;
25 import org.wings.script.JavaScriptListener;
26 import org.wings.script.ScriptListener;
27 import org.wings.session.SessionManager;
28
29 import java.awt.event.ActionEvent  ;
30 import java.awt.event.ActionListener ;
31 import java.io.File ;
32 import java.io.FileOutputStream ;
33 import java.io.IOException ;
34 import java.io.PrintWriter ;
35 import java.util.HashMap ;
36 import java.util.Map ;
37
38
57 public class Editor
58 extends SInternalFrame
59 implements SInternalFrameListener
60 {
61 private DynamicResource saveResource;
62 private SMenuBar menuBar;
63 private SToolbar toolbar;
64 private STextArea textArea;
65
66 private String backup;
67 private String clip;
68
69 public Editor() {
70 menuBar = createMenu();
71 SContainer contentPane = getContentPane();
72 contentPane.setLayout(new SFlowDownLayout());
73 contentPane.add(menuBar);
74 toolbar = createToolbar();
75
76 textArea = new STextArea();
77 textArea.setColumns(80);
78 textArea.setRows(24);
79 textArea.setPreferredSize(new SDimension("100%", null));
80
81 SForm form = new SForm(new SFlowDownLayout());
82 form.add(toolbar);
83 form.add(textArea);
84 contentPane.add(form);
85
86 saveResource = new EditorDynamicResource();
87
88 SIcon icon = new SURLIcon("../icons/penguin.png");
89 setIcon(icon);
90 addInternalFrameListener(this);
91 }
92
93 protected SMenuBar createMenu() {
94 SMenuItem saveItem = new SMenuItem("Save");
95 saveItem.addActionListener(new ActionListener () {
96 public void actionPerformed(ActionEvent evt) {
97 save();
98 }
99 });
100 SMenuItem revertItem = new SMenuItem("Revert");
101 revertItem.addActionListener(new ActionListener () {
102 public void actionPerformed(ActionEvent evt) {
103 revert();
104 }
105 });
106 SMenuItem closeItem = new SMenuItem("Close");
107 closeItem.addActionListener(new ActionListener () {
108 public void actionPerformed(ActionEvent evt) {
109 close();
110 }
111 });
112
113 SMenu fileMenu = new SMenu("File");
114 fileMenu.add(saveItem);
115 fileMenu.add(revertItem);
116 fileMenu.add(closeItem);
117
118 SMenuItem cutItem = new SMenuItem("Cut");
119 cutItem.addActionListener(new ActionListener () {
120 public void actionPerformed(ActionEvent evt) {
121 cut();
122 }
123 });
124 SMenuItem copyItem = new SMenuItem("Copy");
125 copyItem.addActionListener(new ActionListener () {
126 public void actionPerformed(ActionEvent evt) {
127 copy();
128 }
129 });
130 SMenuItem pasteItem = new SMenuItem("Paste");
131 pasteItem.addActionListener(new ActionListener () {
132 public void actionPerformed(ActionEvent evt) {
133 paste();
134 }
135 });
136
137 SMenu editMenu = new SMenu("Edit");
138 editMenu.add(cutItem);
139 editMenu.add(copyItem);
140 editMenu.add(pasteItem);
141
142 SMenuBar menuBar = new SMenuBar();
143 menuBar.add(fileMenu);
144 menuBar.add(editMenu);
145
146 return menuBar;
147 }
148
149 protected SToolbar createToolbar() {
150 try {
151 SButton saveButton = new SButton(new SURLIcon("../icons/filesave.png"));
152 saveButton.setToolTipText("save");
153 saveButton.addActionListener(new ActionListener () {
154 public void actionPerformed(ActionEvent evt) {
155 save();
156 }
157 });
158
159 SButton revertButton = new SButton(new SURLIcon("../icons/filerevert.png"));
160 revertButton.setToolTipText("revert");
161 revertButton.addActionListener(new ActionListener () {
162 public void actionPerformed(ActionEvent evt) {
163 revert();
164 }
165 });
166 SButton closeButton = new SButton(new SURLIcon("../icons/fileclose.png"));
167 closeButton.setToolTipText("close");
168 closeButton.addActionListener(new ActionListener () {
169 public void actionPerformed(ActionEvent evt) {
170 close();
171 }
172 });
173
174 SButton cutButton = new SButton(new SURLIcon("../icons/editcut.png"));
175 cutButton.setToolTipText("cut");
176 cutButton.addActionListener(new ActionListener () {
177 public void actionPerformed(ActionEvent evt) {
178 cut();
179 }
180 });
181 SButton copyButton = new SButton(new SURLIcon("../icons/editcopy.png"));
182 copyButton.setToolTipText("copy");
183 copyButton.addActionListener(new ActionListener () {
184 public void actionPerformed(ActionEvent evt) {
185 copy();
186 }
187 });
188 SButton pasteButton = new SButton(new SURLIcon("../icons/editpaste.png"));
189 pasteButton.setToolTipText("paste");
190 pasteButton.addActionListener(new ActionListener () {
191 public void actionPerformed(ActionEvent evt) {
192 paste();
193 }
194 });
195
196 SToolbar toolbar = new SToolbar();
197 toolbar.add(saveButton);
198 toolbar.add(revertButton);
199 toolbar.add(closeButton);
200 toolbar.add(new SLabel("<html> "));
201 toolbar.add(cutButton);
202 toolbar.add(copyButton);
203 toolbar.add(pasteButton);
204
205 return toolbar;
206 }
207 catch (Exception e) {
208 System.err.println(e.getMessage());
209 e.printStackTrace(System.err);
210 }
211 return new SToolbar();
212 }
213
214 public void setText(String text) {
215 textArea.setText(text);
216 }
217 public String getText() { return textArea.getText(); }
218
219 public void setBackup(String backup) {
220 this.backup = backup;
221 }
222 public String getBackup() { return backup; }
223
224 public void save() {
225 try {
226 File file = File.createTempFile("wings", "txt");
229 PrintWriter out = new PrintWriter (new FileOutputStream (file));
230 out.print(textArea.getText());
231 out.close();
232
233 FileResource resource = new FileResource(file);
235 resource.setExternalizerFlags(resource.getExternalizerFlags()
237 | ExternalizeManager.REQUEST);
238 Map headers = new HashMap ();
240 headers.put("Content-Disposition", "attachment; filename=blub");
241 resource.setHeaders(headers.entrySet());
242
243 RequestURL url = (RequestURL) resource.getURL();
246 url.addParameter("clear=X");
247
248 final ScriptListener script = new JavaScriptListener("onload", "parent.location='" + url + "'");
249 parentFrame.addScriptListener(script);
250
251 getSession().getDispatcher().register(new LowLevelEventListener() {
253 public void processLowLevelEvent(String name, String [] values) {
254 parentFrame.removeScriptListener(script);
256 }
257
258 public String getName() { return "clear"; }
259
260 public String getLowLevelEventId() { return ""; }
261 public String getEncodedLowLevelEventId() { return ""; }
262
263 public void fireIntermediateEvents() {}
264 public void fireFinalEvents() {}
265 public boolean isEnabled() { return true; }
266
267 public boolean checkEpoch() {
268 return true;
269 }
270
271 public boolean isEpochCheckEnabled() { return true; }
272 });
273
274 }
275 catch (IOException e) {
276 System.err.println(e.getMessage());
277 e.printStackTrace(System.err);
278 }
279 }
280
281 public void revert() {
282 textArea.setText(backup);
283 }
284
285 public void close() {
286 super.dispose();
287 }
288
289 public void cut() {
290 clip = textArea.getText();
291 textArea.setText("");
292 }
293
294 public void copy() {
295 clip = textArea.getText();
296 }
297
298 public void paste() {
299 if (clip != null) {
300 textArea.setText(textArea.getText() + clip);
301 }
302 }
303
304 public void internalFrameClosed(SInternalFrameEvent e) {
305 close();
306 }
307
308 public void internalFrameOpened(SInternalFrameEvent e) {}
309 public void internalFrameIconified(SInternalFrameEvent e) {}
310 public void internalFrameDeiconified(SInternalFrameEvent e) {}
311 public void internalFrameMaximized(SInternalFrameEvent e) {}
312 public void internalFrameUnmaximized(SInternalFrameEvent e) {}
313
314 private class EditorDynamicResource extends DynamicResource
315 {
316 String id;
317
318 public EditorDynamicResource() {
319 super(null, "txt", "text/unknown");
320 }
321
322 public void write(Device out)
323 throws IOException
324 {
325 out.print(textArea.getText());
326 }
327
328 public String getId() {
329 if (id == null) {
330 ExternalizeManager ext = SessionManager.getSession().getExternalizeManager();
331 Map headers = new HashMap ();
332 headers.put("Content-Disposition", "attachment; filename=blub");
333 id = ext.getId(ext.externalize(this, headers.entrySet(), AbstractExternalizeManager.REQUEST));
334 }
336 return id;
337 }
338 }
339 }
340 |
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