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comparison pui-application.c @ 0:6884bb8130ca

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Initial revision
author Guido Berhoerster <guido+pui@berhoerster.name>
date Sun, 20 May 2018 11:32:57 +0200
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children 2f04ec9e0506
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-1:000000000000 0:6884bb8130ca
1 /*
2 * Copyright (C) 2018 Guido Berhoerster <guido+pui@berhoerster.name>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 #define G_SETTINGS_ENABLE_BACKEND
25 #include <gio/gsettingsbackend.h>
26 #include <glib/gi18n.h>
27 #include <libappindicator/app-indicator.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include "pui-common.h"
32 #include "pui-application.h"
33 #include "pui-types.h"
34 #include "pui-backend.h"
35
36 #define SETTINGS_ROOT_PATH \
37 "/org/guido-berhoerster/code/package-update-indicator/"
38 #define SETTINGS_ROOT_GROUP "General"
39
40 struct _PuiApplication {
41 GApplication parent_instance;
42 GSettings *settings;
43 GCancellable *cancellable;
44 PuiBackend *backend;
45 AppIndicator *indicator;
46 GtkWidget *about_dialog;
47 GIcon *icons[PUI_STATE_LAST];
48 PuiState state;
49 gchar *update_command;
50 gchar *error_message;
51 };
52
53 G_DEFINE_TYPE(PuiApplication, pui_application, G_TYPE_APPLICATION)
54
55 enum {
56 PROP_0,
57 PROP_UPDATE_COMMAND,
58 PROP_LAST
59 };
60
61 extern gboolean restart;
62
63 static GParamSpec *properties[PROP_LAST] = { NULL };
64
65 static const gchar *icon_names[PUI_STATE_LAST] = {
66 [PUI_STATE_INITIAL] = "system-software-update",
67 [PUI_STATE_UP_TO_DATE] = "system-software-update",
68 [PUI_STATE_NORMAL_UPDATES_AVAILABLE] = "software-update-available",
69 [PUI_STATE_IMPORTANT_UPDATES_AVAILABLE] = "software-update-urgent",
70 [PUI_STATE_ERROR] = "dialog-warning"
71 };
72
73 static const GOptionEntry cmd_options[] = {
74 { "debug", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL,
75 N_("Enable debugging messages"), NULL },
76 { "quit", 'q', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL,
77 N_("Quit running instance of Package Update Indicator"), NULL },
78 { "version", 'V', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL,
79 N_("Print the version number and quit"), NULL },
80 { G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, NULL, NULL, NULL },
81 { NULL }
82 };
83
84 static void pui_application_show_about_dialog(GSimpleAction *, GVariant *,
85 gpointer);
86 static void pui_application_quit(GSimpleAction *, GVariant *, gpointer);
87 static void pui_application_install_updates(GSimpleAction *, GVariant *,
88 gpointer);
89
90 static const GActionEntry pui_application_actions[] = {
91 { "about", pui_application_show_about_dialog },
92 { "quit", pui_application_quit },
93 { "install-updates", pui_application_install_updates }
94 };
95
96 static gboolean
97 program_exists(const gchar *command_line)
98 {
99 gboolean is_program_in_path;
100 gchar **argv = NULL;
101 gchar *program_path;
102
103 if (!g_shell_parse_argv(command_line, NULL, &argv, NULL)) {
104 return (FALSE);
105 }
106 program_path = g_find_program_in_path(argv[0]);
107 is_program_in_path = (program_path != NULL) ? TRUE : FALSE;
108 g_free(program_path);
109 g_strfreev(argv);
110
111 return (is_program_in_path);
112 }
113
114 static void
115 pui_application_show_about_dialog(GSimpleAction *simple, GVariant *parameter,
116 gpointer user_data)
117 {
118 PuiApplication *self = user_data;
119 const gchar *translators;
120
121 if (self->about_dialog == NULL) {
122 translators = _("Translators");
123 if (strcmp(translators, "Translators") == 0) {
124 translators = NULL;
125 }
126
127 self->about_dialog = gtk_about_dialog_new();
128 g_object_set(G_OBJECT(self->about_dialog),
129 "authors", (gchar *[]){ "Guido Berhoerster", NULL },
130 "comments", _("Notify about available software updates"),
131 "copyright", "Copyright \xc2\xa9 2018 Guido Berhoerster",
132 "license-type", GTK_LICENSE_MIT_X11,
133 "logo-icon-name", "system-software-update",
134 "translator-credits", translators,
135 "version", VERSION,
136 "website", "https://code.guido-berhoerster.org/projects/"
137 "package-update-indicator/",
138 "wrap-license", TRUE,
139 NULL);
140 }
141
142 gtk_dialog_run(GTK_DIALOG(self->about_dialog));
143 gtk_widget_hide(self->about_dialog);
144 }
145
146 static void
147 pui_application_quit(GSimpleAction *simple, GVariant *parameter,
148 gpointer user_data)
149 {
150 PuiApplication *self = user_data;
151
152 /* quit the GTK main loop if the about dialog is running */
153 if (self->about_dialog != NULL) {
154 gtk_widget_hide(self->about_dialog);
155 }
156
157 g_application_quit(G_APPLICATION(self));
158 }
159
160 static void
161 pui_application_install_updates(GSimpleAction *simple, GVariant *parameter,
162 gpointer user_data)
163 {
164 PuiApplication *self = user_data;
165 GError *error = NULL;
166
167 if (!g_spawn_command_line_async(self->update_command, &error)) {
168 g_warning("failed to run update command: %s", error->message);
169 g_error_free(error);
170 }
171 }
172
173 static void
174 update_ui(PuiApplication *self)
175 {
176 GSimpleAction *install_updates_action;
177 guint important_updates = 0;
178 guint normal_updates = 0;
179 gchar *title = NULL;
180 gchar *body = NULL;
181 GApplication *application = G_APPLICATION(self);
182 GNotification *notification = NULL;
183
184 install_updates_action =
185 G_SIMPLE_ACTION(g_action_map_lookup_action(G_ACTION_MAP(self),
186 "install-updates"));
187
188 if ((self->state == PUI_STATE_NORMAL_UPDATES_AVAILABLE) ||
189 (self->state == PUI_STATE_IMPORTANT_UPDATES_AVAILABLE)) {
190 g_object_get(self->backend,
191 "important-updates", &important_updates,
192 "normal-updates", &normal_updates, NULL);
193 }
194
195 /* actions */
196 switch (self->state) {
197 case PUI_STATE_INITIAL: /* FALLTHGROUGH */
198 case PUI_STATE_UP_TO_DATE: /* FALLTHGROUGH */
199 case PUI_STATE_ERROR:
200 g_simple_action_set_enabled(install_updates_action, FALSE);
201 break;
202 case PUI_STATE_NORMAL_UPDATES_AVAILABLE: /* FALLTHROUGH */
203 case PUI_STATE_IMPORTANT_UPDATES_AVAILABLE:
204 g_simple_action_set_enabled(install_updates_action,
205 program_exists(self->update_command));
206 break;
207 }
208
209 /* title and body for indicator and notification */
210 switch (self->state) {
211 case PUI_STATE_INITIAL:
212 title = g_strdup("");
213 body = g_strdup("");
214 break;
215 case PUI_STATE_UP_TO_DATE:
216 title = g_strdup(_("Up to Date"));
217 body = g_strdup(_("The system is up to date."));
218 break;
219 case PUI_STATE_NORMAL_UPDATES_AVAILABLE:
220 title = g_strdup(g_dngettext(NULL, "Software Update",
221 "Software Updates", (gulong)normal_updates));
222 if (normal_updates == 1) {
223 body = g_strdup(_("There is a software update "
224 "avaliable."));
225 } else {
226 body = g_strdup_printf(_("There are %u "
227 "software updates avaliable."), normal_updates);
228 }
229 break;
230 case PUI_STATE_IMPORTANT_UPDATES_AVAILABLE:
231 title = g_strdup(g_dngettext(NULL, "Important Software Update",
232 "Important Software Updates", (gulong)important_updates));
233 if ((normal_updates == 0) && (important_updates == 1)) {
234 body = g_strdup(_("There is an important "
235 "software update available."));
236 } else if ((normal_updates == 0) && (important_updates > 1)) {
237 body = g_strdup_printf(_("There are %u "
238 "important software updates available."),
239 important_updates);
240 } else if ((normal_updates > 0) && (important_updates == 1)) {
241 body = g_strdup_printf(_("There are %u "
242 "software updates available, "
243 "one of them is important."),
244 normal_updates + important_updates);
245 } else {
246 body = g_strdup_printf(_("There are %u "
247 "software updates available, "
248 "%u of them are important."),
249 normal_updates + important_updates,
250 important_updates);
251 }
252 break;
253 case PUI_STATE_ERROR:
254 title = g_strdup(self->error_message);
255 break;
256 }
257
258 /* indicator */
259 switch (self->state) {
260 case PUI_STATE_INITIAL:
261 app_indicator_set_status(self->indicator,
262 APP_INDICATOR_STATUS_PASSIVE);
263 break;
264 case PUI_STATE_UP_TO_DATE: /* FALLTHGROUGH */
265 case PUI_STATE_NORMAL_UPDATES_AVAILABLE: /* FALLTHGROUGH */
266 case PUI_STATE_IMPORTANT_UPDATES_AVAILABLE: /* FALLTHGROUGH */
267 case PUI_STATE_ERROR:
268 app_indicator_set_status(self->indicator,
269 APP_INDICATOR_STATUS_ACTIVE);
270 break;
271 }
272 app_indicator_set_icon_full(self->indicator, icon_names[self->state],
273 title);
274
275 /* notification */
276 switch (self->state) {
277 case PUI_STATE_INITIAL: /* FALLTHGROUGH */
278 case PUI_STATE_UP_TO_DATE: /* FALLTHGROUGH */
279 case PUI_STATE_ERROR:
280 /* withdraw exisiting notification */
281 g_application_withdraw_notification(application,
282 "package-updates");
283 break;
284 case PUI_STATE_NORMAL_UPDATES_AVAILABLE: /* FALLTHGROUGH */
285 case PUI_STATE_IMPORTANT_UPDATES_AVAILABLE:
286 /* create notification */
287 notification = g_notification_new(title);
288 g_notification_set_body(notification, body);
289 g_notification_set_icon(notification, self->icons[self->state]);
290 g_notification_set_priority(notification,
291 G_NOTIFICATION_PRIORITY_NORMAL);
292 if (g_action_get_enabled(G_ACTION(install_updates_action))) {
293 g_notification_add_button(notification,
294 _("Install Updates"),
295 "app.install-updates");
296 }
297 g_application_send_notification(application, "package-updates",
298 notification);
299 break;
300 }
301
302 if (notification != NULL) {
303 g_object_unref(notification);
304 }
305
306 g_debug("indicator icon: %s, notification title: \"%s\", "
307 "notification body: \"%s\"", icon_names[self->state], title, body);
308
309 g_free(body);
310 g_free(title);
311 }
312
313 static void
314 transition_state(PuiApplication *self)
315 {
316 PuiState state = self->state;
317 guint important_updates;
318 guint normal_updates;
319 gchar *old_state;
320 gchar *new_state;
321
322 switch (self->state) {
323 case PUI_STATE_INITIAL: /* FALLTHROUGH */
324 case PUI_STATE_UP_TO_DATE: /* FALLTHROUGH */
325 case PUI_STATE_NORMAL_UPDATES_AVAILABLE: /* FALLTHROUGH */
326 case PUI_STATE_IMPORTANT_UPDATES_AVAILABLE:
327 if (self->error_message != NULL) {
328 state = PUI_STATE_ERROR;
329 break;
330 }
331
332 g_object_get(self->backend,
333 "important-updates", &important_updates,
334 "normal-updates", &normal_updates, NULL);
335 if (important_updates > 0) {
336 state = PUI_STATE_IMPORTANT_UPDATES_AVAILABLE;
337 } else if (normal_updates > 0) {
338 state = PUI_STATE_NORMAL_UPDATES_AVAILABLE;
339 } else {
340 state = PUI_STATE_UP_TO_DATE;
341 }
342 break;
343 case PUI_STATE_ERROR:
344 break;
345 }
346
347 if (state != self->state) {
348 old_state = pui_types_enum_to_string(PUI_TYPE_STATE,
349 self->state);
350 new_state = pui_types_enum_to_string(PUI_TYPE_STATE, state);
351 g_debug("state %s -> %s", old_state, new_state);
352
353 self->state = state;
354 update_ui(self);
355
356 g_free(new_state);
357 g_free(old_state);
358 }
359 }
360
361 static void
362 on_backend_restart_required(PuiBackend *backend, gpointer user_data)
363 {
364 PuiApplication *self = user_data;
365
366 restart = TRUE;
367 g_action_group_activate_action(G_ACTION_GROUP(G_APPLICATION(self)),
368 "quit", NULL);
369 }
370
371 static void
372 on_backend_state_changed(PuiBackend *backend, gpointer user_data)
373 {
374 PuiApplication *self = user_data;
375
376 transition_state(self);
377 }
378
379 static void
380 on_pui_backend_finished(GObject *source_object, GAsyncResult *result,
381 gpointer user_data)
382 {
383 PuiApplication *self = user_data;
384 GError *error = NULL;
385
386 self->backend = pui_backend_new_finish(result, &error);
387 if (self->backend == NULL) {
388 g_warning("failed to instantiate backend: %s", error->message);
389 g_free(self->error_message);
390 g_error_free(error);
391 self->error_message = g_strdup(_("Update notifications "
392 "are not supported."));
393 transition_state(self);
394 return;
395 }
396
397 g_settings_bind(self->settings, "refresh-interval", self->backend,
398 "refresh-interval", G_SETTINGS_BIND_GET);
399
400 transition_state(self);
401
402 g_signal_connect(self->backend, "restart-required",
403 G_CALLBACK(on_backend_restart_required), self);
404 g_signal_connect(self->backend, "state-changed",
405 G_CALLBACK(on_backend_state_changed), self);
406 }
407
408 static void
409 pui_application_startup(GApplication *application)
410 {
411 PuiApplication *self = PUI_APPLICATION(application);
412 gsize i;
413 gchar *settings_filename;
414 GSettingsBackend *settings_backend;
415 GtkWidget *menu;
416 GtkWidget *menu_item;
417
418 G_APPLICATION_CLASS(pui_application_parent_class)->startup(application);
419
420 /* create actions */
421 g_action_map_add_action_entries(G_ACTION_MAP(self),
422 pui_application_actions, G_N_ELEMENTS(pui_application_actions),
423 self);
424
425 /* load icons */
426 for (i = 0; i < G_N_ELEMENTS(self->icons); i++) {
427 self->icons[i] = g_themed_icon_new(icon_names[i]);
428 }
429
430 /* create settings */
431 settings_filename = g_build_filename(g_get_user_config_dir(), PACKAGE,
432 PACKAGE ".conf", NULL);
433 settings_backend = g_keyfile_settings_backend_new(settings_filename,
434 SETTINGS_ROOT_PATH, SETTINGS_ROOT_GROUP);
435 self->settings = g_settings_new_with_backend(APPLICATION_ID,
436 settings_backend);
437 g_settings_bind(self->settings, "update-command", self,
438 "update-command", G_SETTINGS_BIND_GET);
439
440 /* start instantiating backend */
441 pui_backend_new_async(self->cancellable, on_pui_backend_finished, self);
442
443 /* create indicator */
444 self->indicator = app_indicator_new(APPLICATION_ID,
445 "system-software-update",
446 APP_INDICATOR_CATEGORY_APPLICATION_STATUS);
447
448 /* build menu */
449 menu = gtk_menu_new();
450 gtk_widget_insert_action_group(GTK_WIDGET(menu), "app",
451 G_ACTION_GROUP(self));
452
453 menu_item = gtk_menu_item_new_with_label(_("Install "
454 "Updates\342\200\246"));
455 gtk_actionable_set_action_name(GTK_ACTIONABLE(menu_item),
456 "app.install-updates");
457 gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item);
458
459 menu_item = gtk_menu_item_new_with_label(_("About\342\200\246"));
460 gtk_actionable_set_action_name(GTK_ACTIONABLE(menu_item),
461 "app.about");
462 gtk_menu_shell_append(GTK_MENU_SHELL(menu), menu_item);
463
464 gtk_widget_show_all(menu);
465 app_indicator_set_menu(self->indicator, GTK_MENU(menu));
466
467 update_ui(self);
468
469 /* keep GApplication running */
470 g_application_hold(application);
471
472 g_object_unref(settings_backend);
473 g_free(settings_filename);
474 }
475
476 static void
477 pui_application_shutdown(GApplication *application)
478 {
479 GApplicationClass *application_class =
480 G_APPLICATION_CLASS(pui_application_parent_class);
481
482 application_class->shutdown(application);
483 }
484
485 static gint
486 pui_application_handle_local_options(GApplication *application,
487 GVariantDict *options)
488 {
489 gchar *messages_debug;
490 gchar **args = NULL;
491 GError *error = NULL;
492
493 /* filename arguments are not allowed */
494 if (g_variant_dict_lookup(options, G_OPTION_REMAINING, "^a&ay",
495 &args)) {
496 g_printerr("invalid argument: \"%s\"\n", args[0]);
497 g_free(args);
498 return (1);
499 }
500
501 if (g_variant_dict_contains(options, "version")) {
502 g_print("%s %s\n", PACKAGE, VERSION);
503
504 /* quit */
505 return (0);
506 }
507
508 if (g_variant_dict_contains(options, "debug")) {
509 /* enable debug logging */
510 messages_debug = g_strjoin(":", G_LOG_DOMAIN,
511 g_getenv("G_MESSAGES_DEBUG"), NULL);
512 g_setenv("G_MESSAGES_DEBUG", messages_debug, TRUE);
513 g_free(messages_debug);
514 }
515
516 /*
517 * register with the session bus so that it is possible to discern
518 * between remote and primary instance and that remote actions can be
519 * invoked, this causes the startup signal to be emitted which, in case
520 * of the primary instance, starts to instantiate the
521 * backend with the given values
522 */
523 if (!g_application_register(application, NULL, &error)) {
524 g_critical("g_application_register: %s", error->message);
525 g_error_free(error);
526 return (1);
527 }
528
529 if (g_variant_dict_contains(options, "quit")) {
530 /* only valid if a remote instance is running */
531 if (!g_application_get_is_remote(application)) {
532 g_printerr("%s is not running\n", g_get_prgname());
533 return (1);
534 }
535
536 /* signal remote instance to quit */
537 g_action_group_activate_action(G_ACTION_GROUP(application),
538 "quit", NULL);
539
540 /* quit local instance */
541 return (0);
542 }
543
544 /* proceed with default command line processing */
545 return (-1);
546 }
547
548 static void
549 pui_application_activate(GApplication *application) {
550 GApplicationClass *application_class =
551 G_APPLICATION_CLASS(pui_application_parent_class);
552
553 /* do nothing, implementation required by GApplication */
554
555 application_class->activate(application);
556 }
557
558 static void
559 pui_application_set_property(GObject *object, guint property_id,
560 const GValue *value, GParamSpec *pspec)
561 {
562 PuiApplication *self = PUI_APPLICATION(object);
563
564 switch (property_id) {
565 case PROP_UPDATE_COMMAND:
566 g_free(self->update_command);
567 self->update_command = g_value_dup_string(value);
568 g_debug("property \"update-command\" set to \"%s\"",
569 self->update_command);
570 break;
571 default:
572 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
573 break;
574 }
575 }
576
577 static void
578 pui_application_get_property(GObject *object, guint property_id, GValue *value,
579 GParamSpec *pspec)
580 {
581 PuiApplication *self = PUI_APPLICATION(object);
582
583 switch (property_id) {
584 case PROP_UPDATE_COMMAND:
585 g_value_set_string(value, self->update_command);
586 break;
587 default:
588 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
589 break;
590 }
591 }
592
593 static void
594 pui_application_dispose(GObject *object)
595 {
596 PuiApplication *self = PUI_APPLICATION(object);
597 gsize i;
598
599 if (self->settings != NULL) {
600 g_signal_handlers_disconnect_by_data(self->settings, self);
601 g_clear_object(&self->settings);
602 }
603
604 if (self->cancellable != NULL) {
605 g_cancellable_cancel(self->cancellable);
606 g_clear_object(&self->cancellable);
607 }
608
609 if (self->backend != NULL) {
610 g_clear_object(&self->backend);
611 }
612
613 if (self->indicator != NULL) {
614 g_clear_object(&self->indicator);
615 }
616
617 if (self->about_dialog != NULL) {
618 g_clear_pointer(&self->about_dialog,
619 (GDestroyNotify)(gtk_widget_destroy));
620 }
621
622 for (i = 0; i < G_N_ELEMENTS(self->icons); i++) {
623 if (self->icons[i] != NULL) {
624 g_clear_object(&self->icons[i]);
625 }
626 }
627
628 G_OBJECT_CLASS(pui_application_parent_class)->dispose(object);
629 }
630
631 static void
632 pui_application_finalize(GObject *object)
633 {
634 PuiApplication *self = PUI_APPLICATION(object);
635
636 g_free(self->update_command);
637 g_free(self->error_message);
638
639 G_OBJECT_CLASS(pui_application_parent_class)->finalize(object);
640 }
641
642 static void
643 pui_application_class_init(PuiApplicationClass *klass)
644 {
645 GObjectClass *object_class = G_OBJECT_CLASS(klass);
646 GApplicationClass *application_class = G_APPLICATION_CLASS(klass);
647
648 object_class->set_property = pui_application_set_property;
649 object_class->get_property = pui_application_get_property;
650 object_class->dispose = pui_application_dispose;
651 object_class->finalize = pui_application_finalize;
652
653 properties[PROP_UPDATE_COMMAND] = g_param_spec_string("update-command",
654 "Update command", "Command for installing updates", NULL,
655 G_PARAM_READWRITE);
656
657 g_object_class_install_properties(object_class, PROP_LAST, properties);
658
659 application_class->startup = pui_application_startup;
660 application_class->shutdown = pui_application_shutdown;
661 application_class->handle_local_options =
662 pui_application_handle_local_options;
663 application_class->activate = pui_application_activate;
664 }
665
666 static void
667 pui_application_init(PuiApplication *self)
668 {
669 g_application_add_main_option_entries(G_APPLICATION(self),
670 cmd_options);
671
672 self->cancellable = g_cancellable_new();
673 }
674
675 PuiApplication *
676 pui_application_new(void)
677 {
678 return (g_object_new(PUI_TYPE_APPLICATION, "application-id",
679 APPLICATION_ID, NULL));
680 }