01: /*
02: * WebSphinx web-crawling toolkit
03: *
04: * Copyright (c) 1998-2002 Carnegie Mellon University. All rights
05: * reserved.
06: *
07: * Redistribution and use in source and binary forms, with or without
08: * modification, are permitted provided that the following conditions
09: * are met:
10: *
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: *
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in
16: * the documentation and/or other materials provided with the
17: * distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
20: * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21: * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
23: * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30: *
31: */
32:
33: package websphinx.workbench;
34:
35: import websphinx.*;
36: import java.applet.AppletContext;
37: import java.io.File;
38: import java.net.URL;
39: import java.net.MalformedURLException;
40:
41: public class Browser implements LinkViewListener {
42: protected AppletContext context;
43: protected String frameName;
44:
45: public Browser(AppletContext context) {
46: this .context = context;
47: frameName = null;
48: }
49:
50: public Browser(AppletContext context, String frameName) {
51: this .context = context;
52: this .frameName = frameName;
53: }
54:
55: public void show(Page page) {
56: URL url = page.getURL();
57:
58: if (url != null)
59: show(url);
60: else {
61: // assume page was dynamically-generated
62: // save it to a temporary file, and show that
63: try {
64: File f = Access.getAccess().makeTemporaryFile("sphinx",
65: ".html");
66: HTMLTransformer out = new HTMLTransformer(f.toString());
67: out.writePage(page);
68: out.close();
69: show(Link.FileToURL(f));
70: } catch (Exception e) {
71: System.err.println(e); // FIX: use GUI to report error
72: }
73: }
74: }
75:
76: public void show(Link link) {
77: show(link.getURL());
78: }
79:
80: public void show(URL url) {
81: if (frameName != null)
82: context.showDocument(url, frameName);
83: else
84: context.showDocument(url);
85: }
86:
87: public void show(File file) {
88: try {
89: show(Link.FileToURL(file));
90: } catch (MalformedURLException e) {
91: }
92: }
93:
94: public void viewLink(LinkViewEvent event) {
95: show(event.getLink());
96: }
97: }
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