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1
21
24 package org.lobobrowser.html.test;
25
26 import java.io.*;
27 import java.net.HttpURLConnection  ;
28 import java.net.URL ;
29 import java.net.URLConnection ;
30 import java.util.*;
31
32 import javax.swing.JOptionPane ;
33
34 import org.lobobrowser.html.*;
35 import org.lobobrowser.html.domimpl.*;
36 import org.lobobrowser.html.gui.HtmlPanel;
37 import org.lobobrowser.html.parser.DocumentBuilderImpl;
38 import org.lobobrowser.html.parser.InputSourceImpl;
39 import org.lobobrowser.util.io.*;
40 import org.w3c.dom.html2.*;
41
42 import java.util.logging.*;
43
44
51 public class SimpleHtmlRendererContext implements HtmlRendererContext {
52 private static final Logger logger = Logger.getLogger(SimpleHtmlRendererContext.class.getName());
53 private static final Set mediaNames = new HashSet();
54
55 private final HtmlPanel htmlPanel;
56 private final HtmlRendererContext parentRcontext;
57
58 static {
59 Set mn = mediaNames;
61 mn.add("screen");
62 mn.add("tv");
63 mn.add("tty");
64 mn.add("all");
65 }
66
67
71 public SimpleHtmlRendererContext(HtmlPanel contextComponent) {
72 super();
73 this.htmlPanel = contextComponent;
74 this.parentRcontext = null;
75 }
76
77
85 public SimpleHtmlRendererContext(HtmlPanel contextComponent, HtmlParserContext pcontext) {
86 this(contextComponent, pcontext, null);
87 }
88
89
97 public SimpleHtmlRendererContext(HtmlPanel contextComponent, HtmlParserContext pcontext, HtmlRendererContext parentRcontext) {
98 super();
99 this.htmlPanel = contextComponent;
100 this.parentRcontext = parentRcontext;
101 }
102
103
109 public SimpleHtmlRendererContext(HtmlPanel contextComponent, HtmlRendererContext parentRcontext) {
110 super();
111 this.htmlPanel = contextComponent;
112 this.parentRcontext = parentRcontext;
113 }
114
115 private volatile String sourceCode;
116
117 public String getSourceCode() {
118 return this.sourceCode;
119 }
120
121 public HTMLCollection getFrames() {
122 Object rootNode = this.htmlPanel.getRootNode();
123 if(rootNode instanceof HTMLDocumentImpl) {
124 return ((HTMLDocumentImpl) rootNode).getFrames();
125 }
126 else {
127 return null;
128 }
129 }
130
131
137 protected HtmlParserContext createParserContext(java.net.URL url) {
138 return new SimpleHtmlParserContext();
139 }
140
141
146 public void reload() {
147 HTMLDocumentImpl document = (HTMLDocumentImpl) this.htmlPanel.getRootNode();
148 if(document != null) {
149 try {
150 URL url = new URL (document.getDocumentURI());
151 this.navigate(url, null);
152 } catch(java.net.MalformedURLException throwable) {
153 this.warn("reload(): Malformed URL", throwable);
154 }
155 }
156 }
157
158
174 public void navigate(final URL href, String target) {
175 if(target != null) {
177 HtmlRendererContext topCtx = this.getTop();
178 HTMLCollection frames = topCtx.getFrames();
179 if(frames != null) {
180 org.w3c.dom.Node frame = frames.namedItem(target);
181 if(frame instanceof FrameNode) {
182 BrowserFrame bframe = ((FrameNode) frame).getBrowserFrame();
183 if(bframe == null) {
184 throw new IllegalStateException ("Frame node without a BrowserFrame instance: " + frame);
185 }
186 if(bframe.getHtmlRendererContext() != this) {
187 bframe.loadURL(href);
188 return;
189 }
190 }
191 }
192 target = target.trim().toLowerCase();
193 if("_top".equals(target)) {
194 this.getTop().navigate(href, null);
195 return;
196 }
197 else if ("_parent".equals(target)) {
198 HtmlRendererContext parent = this.getParent();
199 if(parent != null) {
200 parent.navigate(href, null);
201 return;
202 }
203 }
204 else if("_blank".equals(target)) {
205 this.open(href.toExternalForm(), "cobra.blank", "", false);
206 return;
207 }
208 else {
209 }
211 }
212
213 URL urlForLoading;
214 if(href.getProtocol().equals("file")) {
215 try {
217 urlForLoading = new URL (href.getProtocol(), href.getHost(), href.getPort(), href.getPath());
218 } catch(java.net.MalformedURLException throwable) {
219 this.warn("malformed", throwable);
220 urlForLoading = href;
221 }
222 }
223 else {
224 urlForLoading = href;
225 }
226 final URL finalURLForLoading = urlForLoading;
227 new Thread () {
229 public void run() {
230 try {
231 URL uri = href;
232 logger.info("process(): Loading URI=[" + uri + "].");
233 long time0 = System.currentTimeMillis();
234 URLConnection connection = finalURLForLoading.openConnection();
236 connection.setRequestProperty("User-Agent", getUserAgentContext().getUserAgent());
237 connection.setRequestProperty("Cookie", "");
238 if (connection instanceof HttpURLConnection ) {
239 HttpURLConnection hc = (HttpURLConnection ) connection;
240 hc.setInstanceFollowRedirects(true);
241 int responseCode = hc.getResponseCode();
242 logger.info("process(): HTTP response code: "
243 + responseCode);
244 }
245 InputStream in = connection.getInputStream();
246 try {
247 SimpleHtmlRendererContext.this.sourceCode = null;
248 long time1 = System.currentTimeMillis();
249 RecordedInputStream rin = new RecordedInputStream(in);
250 InputStream bin = new BufferedInputStream(rin, 8192);
251 HtmlParserContext pcontext = createParserContext(uri);
252 DocumentBuilderImpl builder = new DocumentBuilderImpl(
253 pcontext, SimpleHtmlRendererContext.this);
254 String actualURI = uri.toExternalForm();
255 HTMLDocumentImpl document = (HTMLDocumentImpl) builder
257 .createDocument(new InputSourceImpl(bin, actualURI,
258 "ISO-8859-1"));
259 SimpleHtmlRendererContext.this.htmlPanel.setDocument(document, SimpleHtmlRendererContext.this);
261 document.load();
263 long time2 = System.currentTimeMillis();
264 logger.info("Parsed URI=[" + uri + "]: Parse elapsed: "
265 + (time2 - time1) + " ms. Connection elapsed: "
266 + (time1 - time0) + " ms.");
267 SimpleHtmlRendererContext.this.sourceCode = rin.getString("ISO-8859-1");
268 } finally {
269 in.close();
270 }
271 } catch (Exception err) {
272 SimpleHtmlRendererContext.this.error(
273 "navigate(): Error loading or parsing request.",
274 err);
275 }
276 }
277 }.start();
278 }
279
280
283 public void submitForm(String method, java.net.URL action, String target, String enctype, FormInput[] formInputs) {
284 StringBuffer sb = new StringBuffer ();
285 String lineBreak = System.getProperty("line.separator");
286 if(formInputs != null) {
287 for(int i = 0; i < formInputs.length; i++) {
288 sb.append("INPUT: " + formInputs[i].toString());
289 sb.append(lineBreak);
290 }
291 }
292 this.warn("submitForm(): Not overridden; method=" + method + "; action=" + action + "; target=" + target + "; enctype=" + enctype + lineBreak + sb);
293 }
294
295
297 public void alert(String message) {
298 JOptionPane.showMessageDialog(this.htmlPanel, message);
299 }
300
301 public void back() {
302 this.warn("back(): Not overridden");
303 }
304
305 public void blur() {
306 this.warn("back(): Not overridden");
307 }
308
309 public void close() {
310 this.warn("close(): Not overridden");
311 }
312
313 public boolean confirm(String message) {
314 int retValue = JOptionPane.showConfirmDialog(htmlPanel, message, "Confirm", JOptionPane.YES_NO_OPTION);
315 return retValue == JOptionPane.YES_OPTION;
316 }
317
318 public void focus() {
319 this.warn("focus(): Not overridden");
320 }
321
322 public HtmlRendererContext open(String url, String windowName, String windowFeatures, boolean replace) {
323 this.warn("open(): Not overridden");
324 return null;
325 }
326
327 public HtmlRendererContext open(java.net.URL url, String windowName, String windowFeatures, boolean replace) {
328 this.warn("open(): Not overridden");
329 return null;
330 }
331
332 public String prompt(String message, String inputDefault) {
333 return JOptionPane.showInputDialog(htmlPanel, message);
334 }
335
336 public void scroll(int x, int y) {
337 this.warn("scroll(): Not overridden");
338 }
339
340 public boolean isClosed() {
341 this.warn("isClosed(): Not overridden");
342 return false;
343 }
344
345 public String getDefaultStatus() {
346 this.warn("getDefaultStatus(): Not overridden");
347 return "";
348 }
349
350 public int getLength() {
351 this.warn("getLength(): Not overridden");
352 return 0;
353 }
354
355 public String getName() {
356 this.warn("getName(): Not overridden");
357 return "";
358 }
359
360 public HtmlRendererContext getParent() {
361 return this.parentRcontext;
362 }
363
364 private volatile HtmlRendererContext opener;
365
366 public HtmlRendererContext getOpener() {
367 return this.opener;
368 }
369
370 public void setOpener(HtmlRendererContext opener) {
371 this.opener = opener;
372 }
373
374 public String getStatus() {
375 this.warn("getStatus(): Not overridden");
376 return "";
377 }
378
379 public void setStatus(String message) {
380 this.warn("setStatus(): Not overridden");
381 }
382
383 public HtmlRendererContext getTop() {
384 HtmlRendererContext ancestor = this.parentRcontext;
385 if(ancestor == null) {
386 return this;
387 }
388 return ancestor.getTop();
389 }
390
391
394 public BrowserFrame createBrowserFrame() {
395 return new SimpleBrowserFrame(this);
396 }
397
398 public void warn(String message, Throwable throwable) {
399 if(logger.isLoggable(Level.WARNING)) {
400 logger.log(Level.WARNING, message, throwable);
401 }
402 }
403
404 public void error(String message, Throwable throwable) {
405 if(logger.isLoggable(Level.SEVERE)) {
406 logger.log(Level.SEVERE, message, throwable);
407 }
408 }
409
410 public void warn(String message) {
411 if(logger.isLoggable(Level.WARNING)) {
412 logger.log(Level.WARNING, message);
413 }
414 }
415
416 public void error(String message) {
417 if(logger.isLoggable(Level.SEVERE)) {
418 logger.log(Level.SEVERE, message);
419 }
420 }
421
422 public HtmlObject getHtmlObject(HTMLElement element) {
423 HtmlObject result;
424 if("OBJECT".equalsIgnoreCase(element.getTagName())) {
425 result = null;
426 }
427 else {
428 result = new SimpleHtmlObject(element);
429 }
430 this.warn("getHtmlObject(): Not overridden; returning " + result + " for " + element + ".");
431 return result;
432 }
433
434 public void setDefaultStatus(String message) {
435 this.warn("setDefaultStatus(): Not overridden.");
436 }
437
438 private UserAgentContext bcontext = null;
439
440 public UserAgentContext getUserAgentContext() {
441 this.warn("getUserAgentContext(): Not overridden; returning simple one.");
442 synchronized(this) {
443 if(this.bcontext == null) {
444 this.bcontext = new SimpleUserAgentContext();
445 }
446 return this.bcontext;
447 }
448 }
449
450
454 public boolean isVisitedLink(HTMLLinkElement link) {
455 return false;
457 }
458
459 public boolean isMedia(String mediaName) {
460 return mediaNames.contains(mediaName.toLowerCase());
461 }
462 }
463 |
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