GNU Octave 7.1.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
news-reader.cc
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24////////////////////////////////////////////////////////////////////////
25
26#if defined (HAVE_CONFIG_H)
27# include "config.h"
28#endif
29
30#include <string>
31
32#include <QDateTime>
33#include <QString>
34
35#include "news-reader.h"
36#include "octave-qobject.h"
37#include "gui-preferences-nr.h"
38
39#include "url-transfer.h"
40#include "version.h"
41
42namespace octave
43{
44 void news_reader::process (void)
45 {
46 QString html_text;
47
48 if (m_connect_to_web)
49 {
50 // Run this part in a separate thread so Octave can continue to
51 // run while we wait for the page to load. Then emit the signal
52 // to display it when we have the page contents.
53
54 QString url = m_base_url + '/' + m_page;
55 std::ostringstream buf;
56 url_transfer octave_dot_org (url.toStdString (), buf);
57
58 if (octave_dot_org.is_valid ())
59 {
60 Array<std::string> param;
61 octave_dot_org.http_get (param);
62
63 if (octave_dot_org.good ())
64 html_text = QString::fromStdString (buf.str ());
65 }
66
67 if (html_text.contains ("this-is-the-gnu-octave-community-news-page"))
68 {
69 if (m_serial >= 0)
70 {
71 resource_manager& rmgr = m_octave_qobj.get_resource_manager ();
72 gui_settings *settings = rmgr.get_settings ();
73
74 if (settings)
75 {
76 settings->setValue (nr_last_time.key,
77 QDateTime::currentDateTime ());
78
79 settings->sync ();
80 }
81
82 QString tag ("community-news-page-serial=");
83
84 int b = html_text.indexOf (tag);
85
86 if (b)
87 {
88 b += tag.length ();
89
90 int e = html_text.indexOf ("\n", b);
91
92 QString tmp = html_text.mid (b, e-b);
93
94 int curr_page_serial = tmp.toInt ();
95
96 if (curr_page_serial > m_serial)
97 {
98 if (settings)
99 {
100 settings->setValue (nr_last_news.key,
101 curr_page_serial);
102
103 settings->sync ();
104 }
105 }
106 else
107 return;
108 }
109 else
110 return;
111 }
112 }
113 else
114 html_text = QString
115 (tr ("<html>\n"
116 "<body>\n"
117 "<p>\n"
118 "Octave's community news source seems to be unavailable.\n"
119 "</p>\n"
120 "<p>\n"
121 "For the latest news, please check\n"
122 "<a href=\"https://octave.org/community-news.html\">https://octave.org/community-news.html</a>\n"
123 "when you have a connection to the web (link opens in an external browser).\n"
124 "</p>\n"
125 "<p>\n"
126 "<small><em>&mdash; The Octave Developers, ") + OCTAVE_RELEASE_DATE + "</em></small>\n"
127 "</p>\n"
128 "</body>\n"
129 "</html>\n");
130 }
131 else
132 html_text = QString
133 (tr ("<html>\n"
134 "<body>\n"
135 "<p>\n"
136 "Connecting to the web to display the latest Octave Community news has been disabled.\n"
137 "</p>\n"
138 "<p>\n"
139 "For the latest news, please check\n"
140 "<a href=\"https://octave.org/community-news.html\">https://octave.org/community-news.html</a>\n"
141 "when you have a connection to the web (link opens in an external browser)\n"
142 "or enable web connections for news in Octave's network settings dialog.\n"
143 "</p>\n"
144 "<p>\n"
145 "<small><em>&mdash; The Octave Developers, ") + OCTAVE_RELEASE_DATE + "</em></small>\n"
146 "</p>\n"
147 "</body>\n"
148 "</html>\n");
149
150 emit display_news_signal (html_text);
151
152 emit finished ();
153 }
154}
octave::base_qobject::get_resource_manager
resource_manager & get_resource_manager(void)
Definition: octave-qobject.h:139
octave::gui_settings
Definition: gui-settings.h:36
octave::news_reader::m_connect_to_web
bool m_connect_to_web
Definition: news-reader.h:66
octave::news_reader::m_serial
int m_serial
Definition: news-reader.h:65
octave::news_reader::display_news_signal
void display_news_signal(const QString &news)
octave::news_reader::process
void process(void)
Definition: news-reader.cc:44
octave::news_reader::m_octave_qobj
base_qobject & m_octave_qobj
Definition: news-reader.h:61
octave::news_reader::m_page
QString m_page
Definition: news-reader.h:64
octave::news_reader::finished
void finished(void)
octave::news_reader::m_base_url
QString m_base_url
Definition: news-reader.h:63
octave::resource_manager
Definition: resource-manager.h:43
octave::resource_manager::get_settings
gui_settings * get_settings(void) const
Definition: resource-manager.cc:188
octave::url_transfer
Definition: url-transfer.h:170
octave::url_transfer::good
bool good(void) const
Definition: url-transfer.h:188
octave::url_transfer::http_get
void http_get(const Array< std::string > &param)
Definition: url-transfer.h:257
octave::url_transfer::is_valid
bool is_valid(void) const
Definition: url-transfer.h:186
nr_last_news
const gui_pref nr_last_news("news/last_news_item", QVariant(0))
nr_last_time
const gui_pref nr_last_time("news/last_time_checked", QVariant(QDateTime()))
octave::Utils::fromStdString
QString fromStdString(const std::string &s)
Definition: QtHandlesUtils.cc:54
gui_pref::key
const QString key
Definition: gui-preferences.h:52