1 /*
2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2021 the Claws Mail team and Hiroyuki Yamamoto
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 #ifdef HAVE_CONFIG_H
20 #  include "config.h"
21 #include "claws-features.h"
22 #endif
23 
24 #include "defs.h"
25 
26 #include <glib.h>
27 #include <glib/gi18n.h>
28 #include <gdk/gdkkeysyms.h>
29 #include <gtk/gtk.h>
30 #if HAVE_SYS_UTSNAME_H
31 #  include <sys/utsname.h>
32 #endif
33 #include <errno.h>
34 
35 #include "about.h"
36 #include "gtkutils.h"
37 #include "stock_pixmap.h"
38 #include "prefs_common.h"
39 #include "utils.h"
40 #include "version.h"
41 #include "authors.h"
42 #include "codeconv.h"
43 #include "menu.h"
44 #include "textview.h"
45 #include "main.h"
46 #include "file-utils.h"
47 
48 extern SessionStats session_stats;
49 static GtkTextBuffer *stats_text_buffer;
50 
51 static GtkWidget *window;
52 static gchar* uri_hover = NULL;
53 static GtkTextIter uri_hover_start_iter;
54 static GtkTextIter uri_hover_end_iter;
55 static GdkCursor *hand_cursor = NULL;
56 static GdkCursor *text_cursor = NULL;
57 
58 static void about_create(void);
59 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event);
60 static gboolean about_textview_uri_clicked(GtkTextTag *tag, GObject *obj,
61 					GdkEvent *event, GtkTextIter *iter,
62 					GtkWidget *textview);
63 static gboolean about_textview_motion_notify(GtkWidget *widget,
64 					GdkEventMotion *event,
65 					GtkWidget *textview);
66 static gboolean about_textview_leave_notify(GtkWidget *widget,
67 					GdkEventCrossing *event,
68 					GtkWidget *textview);
69 static void about_size_allocate_cb(GtkWidget *widget,
70 				   	GtkAllocation *allocation);
71 static void about_textview_uri_update(GtkWidget *textview, gint x, gint y);
72 static void about_update_stats(void);
73 
74 static GtkWidget *link_popupmenu;
75 
76 
about_show(void)77 void about_show(void)
78 {
79 	if (!window)
80 		about_create();
81 	else {
82 		about_update_stats();
83 		gtk_window_present(GTK_WINDOW(window));
84 	}
85 
86 }
87 
88 #define ADD_TEXT(text) gtk_text_buffer_insert(buffer, &iter, text, -1)
89 
about_create_child_page_info(void)90 static GtkWidget *about_create_child_page_info(void)
91 {
92 	GtkWidget *scrolledwin;
93 	GtkWidget *text;
94 	GtkTextBuffer *buffer;
95 	GtkTextIter iter;
96 	GdkColor uri_color;
97 	gchar buf[1024];
98 	GtkTextTag *tag;
99 #if HAVE_SYS_UTSNAME_H
100 	struct utsname utsbuf;
101 #endif
102 
103 	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
104 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
105 				       GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
106 	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
107 					    GTK_SHADOW_IN);
108 
109 	text = gtk_text_view_new();
110 	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
111 	gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
112 	gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
113 	gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
114 	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
115 	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
116 	gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
117 
118 	buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
119 	gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);
120 
121 	/* textview link style (based upon main prefs) */
122 	gtkut_convert_int_to_gdk_color(prefs_common.color[COL_URI],
123 				(GdkColor*)&uri_color);
124 	tag = gtk_text_buffer_create_tag(buffer, "link",
125 				"foreground-gdk", &uri_color,
126 				"wrap-mode", GTK_WRAP_NONE,
127 				NULL);
128 	gtk_text_buffer_create_tag(buffer, "link-hover",
129 				"foreground-gdk", &uri_color,
130 				"underline", PANGO_UNDERLINE_SINGLE,
131 				NULL);
132 
133 	ADD_TEXT(_("Claws Mail is a lightweight, fast and highly-configurable "
134 				"email client."));
135 	ADD_TEXT("\n\n");
136 	ADD_TEXT(_("For further information visit the Claws Mail website:"));
137 	ADD_TEXT("\n");
138 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, HOMEPAGE_URI, -1,
139 				"link", NULL);
140 	ADD_TEXT("\n\n");
141 	ADD_TEXT(_("For support and discussion subscribe to the Claws Mail "
142 				"users' mailing list:"));
143 	ADD_TEXT("\n");
144 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, USERS_ML_URI, -1,
145 				"link", NULL);
146 	ADD_TEXT("\n\n");
147 	ADD_TEXT(_("Claws Mail is free software released "
148 				"under the GPL. If you wish to donate "
149 				"to the Claws Mail project you can do "
150 				"so at:"));
151 	ADD_TEXT("\n");
152 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, DONATE_URI, -1,
153 				"link", NULL);
154 
155 	gtk_text_buffer_create_tag(buffer, "indented-list-item",
156 				"indent", 8,
157 				NULL);
158 	gtk_text_buffer_create_tag(buffer, "underlined-list-title",
159 				"underline", PANGO_UNDERLINE_SINGLE,
160 				NULL);
161 #ifdef GENERIC_UMPC
162 	ADD_TEXT("\n\n");
163 	ADD_TEXT(_("Copyright (C) 1999-2021\nThe Claws Mail Team\n"
164 				"and Hiroyuki Yamamoto"));
165 #endif
166 	ADD_TEXT("\n\n");
167 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
168 			(_("System Information\n")), -1, "underlined-list-title", NULL);
169 
170 #if HAVE_SYS_UTSNAME_H
171 	uname(&utsbuf);
172 	g_snprintf(buf, sizeof(buf),g_strconcat(
173 		       "GTK+ %d.%d.%d / GLib %d.%d.%d\n",
174 		     _("Locale: %s (charset: %s)\n"
175 		     "Operating System: %s %s (%s)"), NULL),
176 		   gtk_major_version, gtk_minor_version, gtk_micro_version,
177 		   glib_major_version, glib_minor_version, glib_micro_version,
178 		   conv_get_current_locale(), conv_get_locale_charset_str(),
179 		   utsbuf.sysname, utsbuf.release, utsbuf.machine);
180 #elif defined(G_OS_WIN32)
181 	g_snprintf(buf, sizeof(buf),g_strconcat(
182 		       "GTK+ %d.%d.%d / GLib %d.%d.%d\n",
183 		     _("Locale: %s (charset: %s)\n"
184 		     "Operating System: %s"), NULL),
185 		   gtk_major_version, gtk_minor_version, gtk_micro_version,
186 		   glib_major_version, glib_minor_version, glib_micro_version,
187 		   conv_get_current_locale(), conv_get_locale_charset_str(),
188 		   "Win32");
189 #else
190 	g_snprintf(buf, sizeof(buf),g_strconcat(
191 		       "GTK+ %d.%d.%d / GLib %d.%d.%d\n",
192 		     _("Locale: %s (charset: %s)\n"
193 		     "Operating System: unknown"), NULL),
194 		   gtk_major_version, gtk_minor_version, gtk_micro_version,
195 		   glib_major_version, glib_minor_version, glib_micro_version,
196 		   conv_get_current_locale(), conv_get_locale_charset_str());
197 #endif
198 
199 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, buf, -1,
200 						 "indented-list-item", NULL);
201 	ADD_TEXT("\n");
202 
203 	g_signal_connect(G_OBJECT(tag), "event",
204 				G_CALLBACK(about_textview_uri_clicked), text);
205 	g_signal_connect(G_OBJECT(text), "motion-notify-event",
206 				G_CALLBACK(about_textview_motion_notify), text);
207 	g_signal_connect(G_OBJECT(text), "leave-notify-event",
208 				G_CALLBACK(about_textview_leave_notify), text);
209 
210 	return scrolledwin;
211 }
212 
about_create_child_page_authors(void)213 static GtkWidget *about_create_child_page_authors(void)
214 {
215 	GtkWidget *scrolledwin;
216 	GtkWidget *text;
217 	GtkTextBuffer *buffer;
218 	GtkTextIter iter;
219 	gint i;
220 
221 	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
222 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
223 				       GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
224 	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
225 					    GTK_SHADOW_IN);
226 
227 	text = gtk_text_view_new();
228 	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
229 	gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
230 	gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
231 	gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
232 	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
233 	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
234 	gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
235 
236 	buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
237 	gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);
238 
239 	/* init formatting tag: indentation for list items */
240 	gtk_text_buffer_create_tag(buffer, "indented-list-item",
241 				"indent", 8,
242 				NULL);
243 	gtk_text_buffer_create_tag(buffer, "underlined-list-title",
244 				"underline", PANGO_UNDERLINE_SINGLE,
245 				NULL);
246 
247 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
248 			(_("The Claws Mail Team")), -1, "underlined-list-title", NULL);
249 	gtk_text_buffer_insert(buffer, &iter, "\n", 1);
250 
251 	for (i = 0; TEAM_LIST[i] != NULL; i++) {
252 		if (g_utf8_validate(TEAM_LIST[i], -1, NULL))
253 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, TEAM_LIST[i], -1,
254 					"indented-list-item", NULL);
255 		else {
256 			gchar *conv = conv_codeset_strdup(TEAM_LIST[i], CS_ISO_8859_1, CS_UTF_8);
257 			if (conv)
258 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
259 						"indented-list-item", NULL);
260 			g_free(conv);
261 		}
262 		gtk_text_buffer_insert(buffer, &iter, "\n", 1);
263 	}
264 
265 	ADD_TEXT("\n");
266 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
267 			(_("Previous team members")), -1, "underlined-list-title", NULL);
268 	ADD_TEXT("\n");
269 
270 	for (i = 0; EX_TEAM_LIST[i] != NULL; i++) {
271 		if (g_utf8_validate(EX_TEAM_LIST[i], -1, NULL))
272 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, EX_TEAM_LIST[i], -1,
273 					"indented-list-item", NULL);
274 		else {
275 			gchar *conv = conv_codeset_strdup(EX_TEAM_LIST[i], CS_ISO_8859_1, CS_UTF_8);
276 			if (conv)
277 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
278 						"indented-list-item", NULL);
279 			g_free(conv);
280 		}
281 		ADD_TEXT("\n");
282 	}
283 
284 	ADD_TEXT("\n");
285 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
286 			(_("The translation team")), -1, "underlined-list-title", NULL);
287 	ADD_TEXT("\n");
288 
289 	for (i = 0; TRANS_TEAM_LIST[i] != NULL; i++) {
290 		if (g_utf8_validate(TRANS_TEAM_LIST[i], -1, NULL))
291 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, TRANS_TEAM_LIST[i], -1,
292 					"indented-list-item", NULL);
293 		else {
294 			gchar *conv = conv_codeset_strdup(TRANS_TEAM_LIST[i], CS_ISO_8859_1, CS_UTF_8);
295 			if (conv)
296 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
297 						"indented-list-item", NULL);
298 			g_free(conv);
299 		}
300 		ADD_TEXT("\n");
301 	}
302 
303 	ADD_TEXT("\n");
304 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
305 			(_("Documentation team")), -1, "underlined-list-title", NULL);
306 	ADD_TEXT("\n");
307 
308 	for (i = 0; DOC_TEAM_LIST[i] != NULL; i++) {
309 		if (g_utf8_validate(DOC_TEAM_LIST[i], -1, NULL))
310 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, DOC_TEAM_LIST[i], -1,
311 					"indented-list-item", NULL);
312 		else {
313 			gchar *conv = conv_codeset_strdup(DOC_TEAM_LIST[i], CS_ISO_8859_1, CS_UTF_8);
314 			if (conv)
315 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
316 						"indented-list-item", NULL);
317 			g_free(conv);
318 		}
319 		ADD_TEXT("\n");
320 	}
321 
322 	ADD_TEXT("\n");
323 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (_("Logo")), -1,
324 			"underlined-list-title", NULL);
325 	ADD_TEXT("\n");
326 
327 	for (i = 0; LOGO_LIST[i] != NULL; i++) {
328 		if (g_utf8_validate(LOGO_LIST[i], -1, NULL))
329 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, LOGO_LIST[i], -1,
330 					"indented-list-item", NULL);
331 		else {
332 			gchar *conv = conv_codeset_strdup(LOGO_LIST[i], CS_ISO_8859_1, CS_UTF_8);
333 			if (conv)
334 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
335 						"indented-list-item", NULL);
336 			g_free(conv);
337 		}
338 		ADD_TEXT("\n");
339 	}
340 
341 	ADD_TEXT("\n");
342 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (_("Icons")), -1,
343 			"underlined-list-title", NULL);
344 	ADD_TEXT("\n");
345 
346 	for (i = 0; ICONS_LIST[i] != NULL; i++) {
347 		if (g_utf8_validate(ICONS_LIST[i], -1, NULL))
348 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, ICONS_LIST[i], -1,
349 					"indented-list-item", NULL);
350 		else {
351 			gchar *conv = conv_codeset_strdup(ICONS_LIST[i], CS_ISO_8859_1, CS_UTF_8);
352 			if (conv)
353 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
354 						"indented-list-item", NULL);
355 			g_free(conv);
356 		}
357 		ADD_TEXT("\n");
358 	}
359 
360 	ADD_TEXT("\n");
361 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (_("Contributors")), -1,
362 			"underlined-list-title", NULL);
363 	ADD_TEXT("\n");
364 
365 	for (i = 0; CONTRIBS_LIST[i] != NULL; i++) {
366 		if (g_utf8_validate(CONTRIBS_LIST[i], -1, NULL))
367 			gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, CONTRIBS_LIST[i], -1,
368 					"indented-list-item", NULL);
369 		else {
370 			gchar *conv = conv_codeset_strdup(CONTRIBS_LIST[i], CS_ISO_8859_1, CS_UTF_8);
371 			if (conv)
372 				gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, conv, -1,
373 						"indented-list-item", NULL);
374 			g_free(conv);
375 		}
376 		ADD_TEXT("\n");
377 	}
378 
379 	return scrolledwin;
380 }
381 
about_create_child_page_features(void)382 static GtkWidget *about_create_child_page_features(void)
383 {
384 	GtkWidget *scrolledwin;
385 	GtkWidget *text;
386 	GtkTextBuffer *buffer;
387 	GtkTextIter iter;
388 	GdkPixbuf *active_pixbuf;
389 	GdkPixbuf *inactive_pixbuf;
390 
391 	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
392 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
393 				       GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
394 	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
395 					    GTK_SHADOW_IN);
396 
397 	text = gtk_text_view_new();
398 	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
399 	gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
400 	gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
401 	gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
402 	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
403 	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
404 	gtk_widget_add_events(text, GDK_LEAVE_NOTIFY_MASK);
405 
406 	buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
407 	gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);
408 
409 	ADD_TEXT(_("Compiled-in Features"));
410 	ADD_TEXT("\n");
411 
412 	gtk_text_buffer_create_tag(buffer, "bold", "weight", PANGO_WEIGHT_BOLD,
413 				   NULL);
414 
415 	stock_pixbuf_gdk(STOCK_PIXMAP_CHECKBOX_ON, &active_pixbuf);
416 	stock_pixbuf_gdk(STOCK_PIXMAP_CHECKBOX_OFF, &inactive_pixbuf);
417 
418 #if HAVE_LIBCOMPFACE
419 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
420 #else
421 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
422 #endif
423 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" compface "), -1,
424 						 "bold", NULL);
425 	gtk_text_buffer_insert(buffer, &iter,
426 		(gchar *)C_("compface", "adds support for the X-Face header\n"), -1);
427 
428 #if USE_ENCHANT
429 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
430 #else
431 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
432 #endif
433 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" Enchant "), -1,
434 						 "bold", NULL);
435 	gtk_text_buffer_insert(buffer, &iter,
436 		(gchar *)C_("Enchant", "adds support for spell checking\n"), -1);
437 
438 #if USE_GNUTLS
439 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
440 #else
441 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
442 #endif
443 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" GnuTLS "), -1,
444 						 "bold", NULL);
445 	gtk_text_buffer_insert(buffer, &iter,
446 		(gchar *)C_("GnuTLS", "adds support for encrypted connections to servers\n"), -1);
447 
448 #if INET6
449 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
450 #else
451 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
452 #endif
453 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" IPv6 "), -1,
454 						 "bold", NULL);
455 	gtk_text_buffer_insert(buffer, &iter,
456 		(gchar *)C_("IPv6", "adds support for IPv6 addresses, the new Internet "
457 			    "addressing protocol\n"), -1);
458 
459 #if HAVE_ICONV
460 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
461 #else
462 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
463 #endif
464 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" iconv "), -1,
465 						 "bold", NULL);
466 	gtk_text_buffer_insert(buffer, &iter,
467 		(gchar *)C_("iconv", "allows converting to and from different character sets\n"), -1);
468 
469 #if USE_JPILOT
470 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
471 #else
472 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
473 #endif
474 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" JPilot "), -1,
475 						 "bold", NULL);
476 	gtk_text_buffer_insert(buffer, &iter,
477 		(gchar *)C_("JPilot", "adds support for PalmOS addressbooks\n"), -1);
478 
479 #if USE_LDAP
480 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
481 #else
482 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
483 #endif
484 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" LDAP "), -1,
485 						 "bold", NULL);
486 	gtk_text_buffer_insert(buffer, &iter,
487 		(gchar *)C_("LDAP", "adds support for LDAP shared addressbooks\n"), -1);
488 
489 #if HAVE_LIBETPAN
490 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
491 #else
492 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
493 #endif
494 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" libetpan "), -1,
495 						 "bold", NULL);
496 	gtk_text_buffer_insert(buffer, &iter,
497 		(gchar *)C_("libetpan", "adds support for IMAP and NNTP servers\n"), -1);
498 
499 #if HAVE_LIBSM
500 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
501 #else
502 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
503 #endif
504 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" libSM "), -1,
505 						 "bold", NULL);
506 	gtk_text_buffer_insert(buffer, &iter,
507 		(gchar *)C_("libSM", "adds support for session handling\n"), -1);
508 
509 #if HAVE_NETWORKMANAGER_SUPPORT
510 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
511 #else
512 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
513 #endif
514 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" NetworkManager "), -1,
515 						 "bold", NULL);
516 	gtk_text_buffer_insert(buffer, &iter,
517 		(gchar *)C_("NetworkManager", "adds support for detection of network connection changes\n"), -1);
518 
519 #if HAVE_SVG
520 	gtk_text_buffer_insert_pixbuf(buffer, &iter, active_pixbuf);
521 #else
522 	gtk_text_buffer_insert_pixbuf(buffer, &iter, inactive_pixbuf);
523 #endif
524 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, (" librSVG "), -1,
525 						 "bold", NULL);
526 	gtk_text_buffer_insert(buffer, &iter,
527 		(gchar *)C_("librSVG", "adds support for SVG themes\n"), -1);
528 
529 	return scrolledwin;
530 }
531 
about_create_child_page_license(void)532 static GtkWidget *about_create_child_page_license(void)
533 {
534 	GtkWidget *scrolledwin;
535 	GtkWidget *text;
536 	GtkTextBuffer *buffer;
537 	GtkTextIter iter;
538 	GdkColor uri_color;
539 	GtkTextTag *tag;
540 
541 	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
542 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
543 				       GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
544 	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
545 					    GTK_SHADOW_IN);
546 
547 	text = gtk_text_view_new();
548 	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
549 	gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
550 	gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
551 	gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
552 	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
553 	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
554 
555 	buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
556 	gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);
557 
558 	ADD_TEXT(
559 		_("This program is free software; you can redistribute it and/or modify "
560 		  "it under the terms of the GNU General Public License as published by "
561 		  "the Free Software Foundation; either version 3, or (at your option) "
562 		  "any later version."));
563 	ADD_TEXT("\n\n");
564 
565 	ADD_TEXT(
566 		_("This program is distributed in the hope that it will be useful, "
567 		  "but WITHOUT ANY WARRANTY; without even the implied warranty of "
568 		  "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. "
569 		  "See the GNU General Public License for more details."));
570 	ADD_TEXT("\n\n");
571 
572 	/* textview link style (based upon main prefs) */
573 	gtkut_convert_int_to_gdk_color(prefs_common.color[COL_URI],
574 			(GdkColor*)&uri_color);
575 
576 	tag = gtk_text_buffer_create_tag(buffer, "link",
577 		"foreground-gdk", &uri_color,
578 		NULL);
579 	gtk_text_buffer_create_tag(buffer, "link-hover",
580 		"foreground-gdk", &uri_color,
581 		"underline", PANGO_UNDERLINE_SINGLE,
582 		NULL);
583 
584 	gtk_text_buffer_insert(buffer, &iter, g_strconcat(
585 		_("You should have received a copy of the GNU General Public License "
586 		  "along with this program. If not, see "), "<", NULL), -1);
587 	gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
588 		"http://www.gnu.org/licenses/", -1,
589 		"link", NULL);
590 	gtk_text_buffer_insert(buffer, &iter, ">. \n\n", -1);
591 
592 	g_signal_connect(G_OBJECT(tag), "event",
593 				G_CALLBACK(about_textview_uri_clicked), text);
594 	g_signal_connect(G_OBJECT(text), "motion-notify-event",
595 			 G_CALLBACK(about_textview_motion_notify), text);
596 	g_signal_connect(G_OBJECT(text), "leave-notify-event",
597 				G_CALLBACK(about_textview_leave_notify), text);
598 
599 	return scrolledwin;
600 }
601 
602 #undef ADD_TEXT
603 
release_notes_available(void)604 static gboolean release_notes_available(void)
605 {
606 	gboolean ret = FALSE;
607 	gchar *path = NULL;
608 
609 	path = g_strconcat(DOCDIR, G_DIR_SEPARATOR_S, RELEASE_NOTES_FILE, NULL);
610 	ret = (is_file_exist(path));
611 	g_free(path);
612 
613 	return ret;
614 }
615 
about_create_child_page_release_notes(void)616 static GtkWidget *about_create_child_page_release_notes(void)
617 {
618 	GtkWidget *scrolledwin;
619 	GtkWidget *text;
620 	GtkTextBuffer *buffer;
621 	GtkTextIter iter;
622 	gchar *path, buf[1024];
623 	FILE *fp;
624 
625 	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
626 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
627 			GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
628 	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
629 			GTK_SHADOW_IN);
630 	text = gtk_text_view_new();
631 	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
632 	gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
633 	gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
634 	gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
635 	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
636 	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
637 
638 	buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
639 	gtk_text_buffer_get_iter_at_offset(buffer, &iter, 0);
640 
641 	path = g_strconcat(DOCDIR, G_DIR_SEPARATOR_S, RELEASE_NOTES_FILE, NULL);
642 	if ((fp = claws_fopen(path, "rb")) == NULL) {
643 		if (ENOENT != errno) FILE_OP_ERROR(path, "claws_fopen");
644 		g_free(path);
645 		return scrolledwin;
646 	}
647 	g_free(path);
648 
649 	while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
650 		const gchar *src_codeset = conv_get_locale_charset_str();
651 		const gchar *dest_codeset = CS_UTF_8;
652 		gchar *tmp;
653 
654 		tmp = conv_codeset_strdup(buf, src_codeset, dest_codeset);
655 		if (!tmp) {
656 			g_warning("Failed to convert character set of action configuration");
657 			tmp = g_strdup(buf);
658 		}
659 
660 		gtk_text_buffer_insert(buffer, &iter, tmp, -1);
661 		g_free(tmp);
662 	}
663 	claws_fclose(fp);
664 
665 	return scrolledwin;
666 }
667 
about_create_child_page_session_stats(void)668 static GtkWidget *about_create_child_page_session_stats(void)
669 {
670 	GtkWidget *scrolledwin;
671 	GtkWidget *text;
672 	GtkTextIter iter;
673 
674 	scrolledwin = gtk_scrolled_window_new(NULL, NULL);
675 	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
676 			GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
677 	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
678 			GTK_SHADOW_IN);
679 	text = gtk_text_view_new();
680 	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
681 	gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
682 	gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text), 6);
683 	gtk_text_view_set_right_margin(GTK_TEXT_VIEW(text), 6);
684 	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
685 	gtk_container_add(GTK_CONTAINER(scrolledwin), text);
686 
687 	stats_text_buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
688 
689 	gtk_text_buffer_get_iter_at_offset(stats_text_buffer, &iter, 0);
690 	gtk_text_buffer_create_tag(stats_text_buffer, "indented-list-item",
691 				"indent", 8,
692 				NULL);
693 	gtk_text_buffer_create_tag(stats_text_buffer, "underlined-list-title",
694 				"underline", PANGO_UNDERLINE_SINGLE,
695 				NULL);
696 	gtk_text_buffer_create_tag(stats_text_buffer, "bold", "weight", PANGO_WEIGHT_BOLD,
697 				   NULL);
698 
699 	about_update_stats();
700 
701 	return scrolledwin;
702 }
703 
about_update_stats(void)704 static void about_update_stats(void)
705 {
706 	if (stats_text_buffer != NULL)
707 	{
708 		GtkTextIter start, end, iter;
709 		gchar buf[1024];
710 
711 		gtk_text_buffer_get_start_iter(stats_text_buffer, &start);
712 		gtk_text_buffer_get_end_iter(stats_text_buffer, &end);
713 		gtk_text_buffer_delete(stats_text_buffer, &start, &end);
714 
715 		gtk_text_buffer_get_iter_at_offset(stats_text_buffer, &iter, 0);
716 
717 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter,
718 				(_("Session statistics\n")), -1,
719 				"underlined-list-title", NULL);
720 
721 		if (prefs_common.date_format) {
722 			struct tm *lt;
723 			gint len = 100;
724 			gchar date[len];
725 
726 			lt = localtime(&session_stats.time_started);
727 			fast_strftime(date, len, prefs_common.date_format, lt);
728 			g_snprintf(buf, sizeof(buf), _("Started: %s\n"),
729 						lt ? date : ctime(&session_stats.time_started));
730 		} else
731 			g_snprintf(buf, sizeof(buf), _("Started: %s\n"),
732 						ctime(&session_stats.time_started));
733 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter, buf, -1,
734 				"indented-list-item", NULL);
735 
736 		gtk_text_buffer_insert(stats_text_buffer, &iter, "\n", 1);
737 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter,
738 				(_("Incoming traffic\n")), -1,
739 				"underlined-list-title", NULL);
740 
741 		g_snprintf(buf, sizeof(buf), _("Received messages: %d\n"),
742 					session_stats.received);
743 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter, buf, -1,
744 				"indented-list-item", "bold", NULL);
745 
746 		gtk_text_buffer_insert(stats_text_buffer, &iter, "\n", 1);
747 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter,
748 				(_("Outgoing traffic\n")), -1,
749 				"underlined-list-title", NULL);
750 
751 		g_snprintf(buf, sizeof(buf), _("New/redirected messages: %d\n"),
752 					session_stats.sent);
753 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter, buf, -1,
754 				"indented-list-item", NULL);
755 
756 		g_snprintf(buf, sizeof(buf), _("Replied messages: %d\n"),
757 					session_stats.replied);
758 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter, buf, -1,
759 				"indented-list-item", NULL);
760 
761 		g_snprintf(buf, sizeof(buf), _("Forwarded messages: %d\n"),
762 					session_stats.forwarded);
763 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter, buf, -1,
764 				"indented-list-item", NULL);
765 
766 		g_snprintf(buf, sizeof(buf), _("Total outgoing messages: %d\n"),
767 					(session_stats.sent + session_stats.replied +
768 					 session_stats.forwarded));
769 		gtk_text_buffer_insert_with_tags_by_name(stats_text_buffer, &iter, buf, -1,
770 				"indented-list-item", "bold", NULL);
771 	}
772 }
773 
about_create(void)774 static void about_create(void)
775 {
776 	GtkWidget *vbox1;
777 	GtkWidget *image;
778  	GtkWidget *vbox2;
779 	GtkWidget *label;
780 	GtkWidget *button;
781 	GtkWidget *scrolledwin;
782 	GtkWidget *notebook;
783 	GtkWidget *table;
784 	char *markup;
785 	GtkWidget *confirm_area;
786 	GtkWidget *close_button;
787 	static GdkGeometry geometry;
788 
789 	stats_text_buffer = NULL;
790 
791 	window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "about");
792 	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER_ALWAYS);
793 	gtk_window_set_title(GTK_WINDOW(window), _("About Claws Mail"));
794 	gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
795 	gtk_container_set_border_width(GTK_CONTAINER(window), 8);
796 	gtk_widget_set_size_request(window, -1, -1);
797 	g_signal_connect(G_OBJECT(window), "size_allocate",
798 			 G_CALLBACK(about_size_allocate_cb), NULL);
799 	g_signal_connect(G_OBJECT(window), "size_allocate",
800 			 G_CALLBACK(about_size_allocate_cb), NULL);
801 	g_signal_connect(G_OBJECT(window), "delete_event",
802 			 G_CALLBACK(gtk_widget_hide_on_delete), NULL);
803 	g_signal_connect(G_OBJECT(window), "key_press_event",
804 			 G_CALLBACK(key_pressed), NULL);
805 
806 	if (!geometry.min_width) {
807 		geometry.min_width = 450;
808 		geometry.min_height = 500;
809 	}
810 
811 	gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
812 				      GDK_HINT_MIN_SIZE);
813 	gtk_window_set_default_size(GTK_WINDOW(window), prefs_common.aboutwin_width,
814 				    prefs_common.aboutwin_height);
815 
816 	gtk_widget_realize(window);
817 
818 	vbox1 = gtk_vbox_new(FALSE, 8);
819 	gtk_container_add(GTK_CONTAINER(window), vbox1);
820 
821 	table = gtk_table_new (2, 1, FALSE);
822 	gtk_box_pack_start(GTK_BOX(vbox1), table,
823 			FALSE, FALSE, 0);
824 	gtk_container_set_border_width (GTK_CONTAINER (table), 8);
825 	gtk_table_set_row_spacings (GTK_TABLE (table), 8);
826 	gtk_table_set_col_spacings (GTK_TABLE (table), 8);
827 
828 	image = stock_pixmap_widget(STOCK_PIXMAP_CLAWS_MAIL_LOGO);
829 	gtk_table_attach (GTK_TABLE (table), image, 0, 1, 0, 1,
830 			(GtkAttachOptions) (GTK_EXPAND),
831 			(GtkAttachOptions) (0), 0, 0);
832 
833 	vbox2 = gtk_vbox_new (FALSE, 4);
834 	gtk_table_attach (GTK_TABLE (table), vbox2, 1, 2, 0, 1,
835 			(GtkAttachOptions) (GTK_EXPAND),
836 			(GtkAttachOptions) (0), 0, 0);
837 
838 	label = gtk_label_new("");
839 	gtk_label_set_selectable(GTK_LABEL(label), TRUE);
840 	gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_CENTER);
841 	gtk_box_pack_start(GTK_BOX(vbox2), label, FALSE, FALSE, 0);
842 	markup = g_markup_printf_escaped
843 		("<span weight=\"bold\" size=\"xx-large\">Claws Mail</span>\nversion %s",
844 		 VERSION);
845 	gtk_label_set_markup(GTK_LABEL(label), markup);
846 	g_free(markup);
847 
848 	button = gtkut_get_link_btn(window, HOMEPAGE_URI, " "HOMEPAGE_URI" ");
849 	gtk_box_pack_start(GTK_BOX(vbox2), button, FALSE, FALSE, 0);
850 #ifndef GENERIC_UMPC
851 	label = gtk_label_new
852 		(_("Copyright (C) 1999-2021\nThe Claws Mail Team\n"
853 		 "and Hiroyuki Yamamoto"));
854 	gtk_label_set_selectable(GTK_LABEL(label), TRUE);
855 	gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_CENTER);
856 	gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
857 	gtk_box_pack_start(GTK_BOX(vbox2), label, FALSE, FALSE, 0);
858 #endif
859 	notebook = gtk_notebook_new();
860 	gtk_widget_set_size_request(notebook, -1, 220);
861 	gtk_widget_show(notebook);
862 
863 	if ((scrolledwin = about_create_child_page_info()) != NULL) {
864 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
865 				scrolledwin,
866 				gtk_label_new_with_mnemonic(_("_Info")));
867 	}
868 
869 	if ((scrolledwin = about_create_child_page_authors()) != NULL) {
870 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
871 				scrolledwin,
872 				gtk_label_new_with_mnemonic(_("_Authors")));
873 	}
874 
875 	if ((scrolledwin = about_create_child_page_features()) != NULL) {
876 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
877 				scrolledwin,
878 				gtk_label_new_with_mnemonic(_("_Features")));
879 	}
880 
881 	if ((scrolledwin = about_create_child_page_license()) != NULL) {
882 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
883 				scrolledwin,
884 				gtk_label_new_with_mnemonic(_("_License")));
885 	}
886 
887 	if (release_notes_available() &&
888 			(scrolledwin = about_create_child_page_release_notes()) != NULL) {
889 
890 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
891 				scrolledwin,
892 				gtk_label_new_with_mnemonic(_("_Release Notes")));
893 	}
894 
895 	if ((scrolledwin = about_create_child_page_session_stats()) != NULL) {
896 		gtk_notebook_append_page(GTK_NOTEBOOK(notebook),
897 				scrolledwin,
898 				gtk_label_new_with_mnemonic(_("_Statistics")));
899 	}
900 
901 	gtk_box_pack_start(GTK_BOX(vbox1), notebook, TRUE, TRUE, 0);
902 
903 	gtkut_stock_button_set_create(&confirm_area, &close_button, GTK_STOCK_CLOSE,
904 				      NULL, NULL, NULL, NULL);
905 	gtk_box_pack_end(GTK_BOX(vbox1), confirm_area, FALSE, FALSE, 4);
906 	gtk_widget_grab_default(close_button);
907 	gtk_widget_grab_focus(close_button);
908 	g_signal_connect_closure
909 		(G_OBJECT(close_button), "clicked",
910 		 g_cclosure_new_swap(G_CALLBACK(gtk_widget_hide_on_delete),
911 				     window, NULL), FALSE);
912 
913 	gtk_widget_show_all(window);
914 }
915 
key_pressed(GtkWidget * widget,GdkEventKey * event)916 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event)
917 {
918 	if (event && event->keyval == GDK_KEY_Escape)
919 		gtk_widget_hide(window);
920 	return FALSE;
921 }
922 
about_size_allocate_cb(GtkWidget * widget,GtkAllocation * allocation)923 static void about_size_allocate_cb(GtkWidget *widget,
924 				   GtkAllocation *allocation)
925 {
926 	cm_return_if_fail(allocation != NULL);
927 
928 	prefs_common.aboutwin_width = allocation->width;
929 	prefs_common.aboutwin_height = allocation->height;
930 }
931 
932 
about_textview_uri_clicked(GtkTextTag * tag,GObject * obj,GdkEvent * event,GtkTextIter * iter,GtkWidget * textview)933 static gboolean about_textview_uri_clicked(GtkTextTag *tag, GObject *obj,
934 					GdkEvent *event, GtkTextIter *iter,
935 					GtkWidget *textview)
936 {
937 	GtkTextIter start_iter, end_iter;
938 	GdkEventButton *bevent;
939 	gchar *link = NULL;
940 
941 	if (!event || !tag) {
942 		return FALSE;
943 	}
944 
945 	if (event->type != GDK_BUTTON_PRESS && event->type != GDK_2BUTTON_PRESS
946 		&& event->type != GDK_BUTTON_RELEASE) {
947 		return FALSE;
948 	}
949 
950 	/* get link text from tag */
951 	if (get_tag_range(iter, tag, &start_iter,
952 				   &end_iter) == FALSE) {
953 		return FALSE;
954 	}
955 	link = gtk_text_iter_get_text(&start_iter, &end_iter);
956 	if (link == NULL) {
957 		return FALSE;
958 	}
959 
960 	bevent = (GdkEventButton *) event;
961 	if (bevent->button == 1 && event->type == GDK_BUTTON_RELEASE) {
962 		GtkTextBuffer *buffer;
963 
964 		/* we shouldn't follow a link if the user has selected something */
965 		buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview));
966 		gtk_text_buffer_get_selection_bounds(buffer, &start_iter, &end_iter);
967 		if (gtk_text_iter_get_offset(&start_iter) != gtk_text_iter_get_offset(&end_iter)) {
968 			return FALSE;
969 		}
970 		/* open link and do *not* return TRUE so that
971 		   further gtk processing of the signal is done */
972 		open_uri(link, prefs_common_get_uri_cmd());
973 
974 	} else {
975 		if (bevent->button == 3 && event->type == GDK_BUTTON_PRESS) {
976 			link_popupmenu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(
977 				gtk_ui_manager_get_widget(gtkut_ui_manager(), "/Menus/TextviewPopupLink")));
978 
979 			g_object_set_data(
980 					G_OBJECT(link_popupmenu),
981 					"raw_url", link);
982 			gtk_menu_popup(GTK_MENU(link_popupmenu),
983 					NULL, NULL, NULL, NULL,
984 					bevent->button, bevent->time);
985 
986 			return TRUE;
987 		}
988 	}
989 	return FALSE;
990 }
991 
about_textview_motion_notify(GtkWidget * widget,GdkEventMotion * event,GtkWidget * textview)992 static gboolean about_textview_motion_notify(GtkWidget *widget,
993 					GdkEventMotion *event,
994 					GtkWidget *textview)
995 {
996 	about_textview_uri_update(textview, event->x, event->y);
997 	gdk_window_get_pointer(gtk_widget_get_window(widget), NULL, NULL, NULL);
998 
999 	return FALSE;
1000 }
1001 
about_textview_leave_notify(GtkWidget * widget,GdkEventCrossing * event,GtkWidget * textview)1002 static gboolean about_textview_leave_notify(GtkWidget *widget,
1003 					GdkEventCrossing *event,
1004 					GtkWidget *textview)
1005 {
1006 	about_textview_uri_update(textview, -1, -1);
1007 
1008 	return FALSE;
1009 }
1010 
about_textview_uri_update(GtkWidget * textview,gint x,gint y)1011 static void about_textview_uri_update(GtkWidget *textview, gint x, gint y)
1012 {
1013 	GtkTextBuffer *buffer;
1014 	GtkTextIter start_iter, end_iter;
1015 	gchar *uri = NULL;
1016 	gboolean same;
1017 
1018 	buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview));
1019 
1020 	if (x != -1 && y != -1) {
1021 		gint bx, by;
1022 		GtkTextIter iter;
1023 		GSList *tags;
1024 		GSList *cur;
1025 
1026 		gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(textview),
1027 				GTK_TEXT_WINDOW_WIDGET,
1028 				x, y, &bx, &by);
1029 		gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(textview),
1030 				&iter, bx, by);
1031 
1032 		tags = gtk_text_iter_get_tags(&iter);
1033 		for (cur = tags; cur != NULL; cur = cur->next) {
1034 			GtkTextTag *tag = cur->data;
1035 			char *name;
1036 
1037 			g_object_get(G_OBJECT(tag), "name", &name, NULL);
1038 			if (strcmp(name, "link") == 0
1039 			    && get_tag_range(&iter, tag, &start_iter, &end_iter)) {
1040 				uri = gtk_text_iter_get_text(&start_iter, &end_iter);
1041 			}
1042 			g_free(name);
1043 
1044 			if (uri) {
1045 				break;
1046 			}
1047 		}
1048 		g_slist_free(tags);
1049 	}
1050 
1051 	/* compare previous hovered link and this one
1052 	   (here links must be unique in text buffer otherwise ClickableText structures should be
1053 	   used as in textview.c) */
1054 	same = (uri != NULL && uri_hover != NULL
1055 		&& strcmp((char*)uri, (char*)uri_hover) == 0);
1056 
1057 	if (same == FALSE) {
1058 		GdkWindow *window;
1059 
1060 		if (uri_hover) {
1061 			gtk_text_buffer_remove_tag_by_name(buffer,
1062 					"link-hover",
1063 					&uri_hover_start_iter,
1064 					&uri_hover_end_iter);
1065 		}
1066 
1067 		uri_hover = uri;
1068 		if (uri) {
1069 			uri_hover_start_iter = start_iter;
1070 			uri_hover_end_iter = end_iter;
1071 
1072 			gtk_text_buffer_apply_tag_by_name(buffer,
1073 					"link-hover",
1074 					&start_iter,
1075 					&end_iter);
1076 		}
1077 
1078 		window = gtk_text_view_get_window(GTK_TEXT_VIEW(textview),
1079 						GTK_TEXT_WINDOW_TEXT);
1080 		if (!hand_cursor)
1081 			hand_cursor = gdk_cursor_new(GDK_HAND2);
1082 		if (!text_cursor)
1083 			text_cursor = gdk_cursor_new(GDK_XTERM);
1084 		gdk_window_set_cursor(window, uri ? hand_cursor : text_cursor);
1085 	}
1086 }
1087