Mercurial > octave-nkf

comparison libgui/src/news-dock-widget.cc @ 17599:f5950975a172

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
community news dock widget and other user info in GUI * news-dock-widget.h, news-dock-widget.cc: New files. * libgui/src/module.mk: Update file lists. * configure.ac: Check for QtWebKit module. * default-qt-settings.in: Update default geometry. * main-window.cc, main-window.h (main_window::news_window): New data member. (main_window::dock_widget_list): Include it in the list. (main_window::display_release_notes, main_window::display_url_in_window, main_window::construct_news_menu): New functions. (main_window::construct): Add news_window dock widget. (main_window::construct_menu_bar): Call construct_news_menu. (main_window::construct_window_menu): New items for Showing news window and menu.
author John W. Eaton <jwe@octave.org>
date Mon, 07 Oct 2013 21:13:11 -0400
parents
children 482222fe5b35
comparison
equal deleted inserted replaced
17598:d8d71c89fff2 17599:f5950975a172
1 /*
2
3 Copyright (C) 2013 John W. Eaton
4
5 This file is part of Octave.
6
7 Octave is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 Octave is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Octave; see the file COPYING. If not, see
19 <http://www.gnu.org/licenses/>.
20
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <iostream>
28
29 #include <QVBoxLayout>
30 #include <QThread>
31
32 #include "news-dock-widget.h"
33
34 #include "Array.h"
35 #include "str-vec.h"
36 #include "url-transfer.h"
37
38 #include "version.h"
39
40 news_dock_widget::news_dock_widget (QWidget *p)
41 : octave_dock_widget (p), news_browser (new QWebView (p))
42 {
43 news_browser->setObjectName ("OctaveNews");
44
45 setObjectName ("NewsDockWidget");
46 setWindowIcon (QIcon (":/icons/logo.png"));
47 set_title (tr ("Community News"));
48
49 setWidget (news_browser);
50
51 load_news ();
52 }
53
54 void
55 news_dock_widget::load_news (void)
56 {
57 QString base_url = "http://octave.org";
58 QString page = "community-news.html";
59
60 QThread *worker_thread = new QThread;
61
62 news_reader *reader = new news_reader (base_url, page);
63
64 reader->moveToThread (worker_thread);
65
66 connect (reader, SIGNAL (display_news_signal (const QString&, const QUrl&)),
67 this, SLOT (display_news (const QString&, const QUrl&)));
68
69 connect (worker_thread, SIGNAL (started (void)), reader, SLOT (process ()));
70
71 connect (reader, SIGNAL (finished (void)), worker_thread, SLOT (quit ()));
72
73 connect (reader, SIGNAL (finished (void)), reader, SLOT (deleteLater ()));
74
75 connect (worker_thread, SIGNAL (finished (void)),
76 worker_thread, SLOT (deleteLater ()));
77
78 worker_thread->start ();
79 }
80
81 static const char fixed_news[] = "<html>\n\
82 <body>\n\
83 <p>\n\
84 This window will be used to inform you about Octave community events.\n\
85 Octave may show it to you even if you've chosen hide the window by\n\
86 default. We'll try not to bother you too much, but we do want to keep\n\
87 you up to date with the latest information about important bug fixes,\n\
88 new releases, or any other news that all Octave users should be aware of.\n\
89 </p>\n\
90 <p>\n\
91 Currently, Octave's community news source seems to be unavailable.\n\
92 For the latest news, please check\n\
93 <a href=\"http://octave.org/community-news.html\">http://octave.org/community-news.html</a>\n\
94 when you have a connection to the web.\n\
95 </p>\n\
96 <p>\n\
97 <small><em>&mdash; The Octave Developers, " OCTAVE_RELEASE_DATE "</em></small>\n\
98 </body>\n\
99 </html>\n";
100
101 void
102 news_dock_widget::display_news (const QString& news, const QUrl& base_url)
103 {
104 if (news.contains ("this-is-the-gnu-octave-community-news-page"))
105 {
106 news_browser->setHtml (news, base_url);
107
108 if (news.contains ("critical-news-event") && ! isVisible ())
109 setVisible (true);
110 }
111 else
112 news_browser->setHtml (fixed_news);
113 }
114
115 void
116 news_reader::process (void)
117 {
118 // Run this part in a separate thread so Octave can continue to run
119 // while we wait for the page to load. Then emit the signal to
120 // display it when we have the page contents.
121
122 QString url = base_url + "/" + page;
123 std::ostringstream buf;
124 url_transfer octave_dot_org (url.toStdString (), buf);
125
126 Array<std::string> param;
127 octave_dot_org.http_get (param);
128
129 QString html_text;
130
131 if (octave_dot_org.good ())
132 html_text = QString::fromStdString (buf.str ());
133
134 emit display_news_signal (html_text, QUrl (base_url));
135
136 emit finished ();
137 }