/* Evolution calendar - Alarm queueing engine * * Copyright (C) 2001 Ximian, Inc. * * Authors: Federico Mena-Quintero * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "evolution-calendar.h" #include "alarm.h" #include "alarm-notify-dialog.h" #include "alarm-queue.h" #include "config-data.h" #include "save.h" #include "util.h" /* Whether the queueing system has been initialized */ static gboolean alarm_queue_inited; /* When the alarm queue system is inited, this gets set to the last time an * alarm notification was issued. This lets us present any notifications that * should have happened while the alarm daemon was not running. */ static time_t saved_notification_time; /* Clients we are monitoring for alarms */ static GHashTable *client_alarms_hash = NULL; /* Structure that stores a client we are monitoring */ typedef struct { /* Monitored client */ ECal *client; /* Number of times this client has been registered */ int refcount; /* Hash table of component UID -> CompQueuedAlarms. If an element is * present here, then it means its cqa->queued_alarms contains at least * one queued alarm. When all the alarms for a component have been * dequeued, the CompQueuedAlarms structure is removed from the hash * table. Thus a CQA exists <=> it has queued alarms. */ GHashTable *uid_alarms_hash; } ClientAlarms; /* Pair of a ECalComponentAlarms and the mapping from queued alarm IDs to the * actual alarm instance structures. */ typedef struct { /* The parent client alarms structure */ ClientAlarms *parent_client; /* The component's UID */ char *uid; /* The actual component and its alarm instances */ ECalComponentAlarms *alarms; /* List of QueuedAlarm structures */ GSList *queued_alarms; /* Flags */ gboolean expecting_update; } CompQueuedAlarms; /* Pair of a queued alarm ID and the alarm trigger instance it refers to */ typedef struct { /* Alarm ID from alarm.h */ gpointer alarm_id; /* Instance from our parent CompQueuedAlarms->alarms->alarms list */ ECalComponentAlarmInstance *instance; /* Whether this is a snoozed queued alarm or a normal one */ guint snooze : 1; } QueuedAlarm; /* Alarm ID for the midnight refresh function */ static gpointer midnight_refresh_id = NULL; static void display_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id, gboolean use_description); static void audio_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id); static void mail_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id); static void procedure_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id); /* Alarm queue engine */ static void load_alarms_for_today (ClientAlarms *ca); static void midnight_refresh_cb (gpointer alarm_id, time_t trigger, gpointer data); /* Queues an alarm trigger for midnight so that we can load the next day's worth * of alarms. */ static void queue_midnight_refresh (void) { time_t midnight; icaltimezone *zone; g_assert (midnight_refresh_id == NULL); zone = config_data_get_timezone (); midnight = time_day_end_with_zone (time (NULL), zone); midnight_refresh_id = alarm_add (midnight, midnight_refresh_cb, NULL, NULL); if (!midnight_refresh_id) { g_message ("queue_midnight_refresh(): Could not set up the midnight refresh alarm!"); /* FIXME: what to do? */ } } /* Loads a client's alarms; called from g_hash_table_foreach() */ static void add_client_alarms_cb (gpointer key, gpointer value, gpointer data) { ClientAlarms *ca; ca = value; load_alarms_for_today (ca); } /* Loads the alarms for the new day every midnight */ static void midnight_refresh_cb (gpointer alarm_id, time_t trigger, gpointer data) { /* Re-load the alarms for all clients */ g_hash_table_foreach (client_alarms_hash, add_client_alarms_cb, NULL); /* Re-schedule the midnight update */ midnight_refresh_id = NULL; queue_midnight_refresh (); } /* Looks up a client in the client alarms hash table */ static ClientAlarms * lookup_client (ECal *client) { return g_hash_table_lookup (client_alarms_hash, client); } /* Looks up a queued alarm based on its alarm ID */ static QueuedAlarm * lookup_queued_alarm (CompQueuedAlarms *cqa, gpointer alarm_id) { GSList *l; QueuedAlarm *qa; qa = NULL; for (l = cqa->queued_alarms; l; l = l->next) { qa = l->data; if (qa->alarm_id == alarm_id) return qa; } /* not found, might have been updated/removed */ return NULL; } /* Removes an alarm from the list of alarms of a component. If the alarm was * the last one listed for the component, it removes the component itself. */ static void remove_queued_alarm (CompQueuedAlarms *cqa, gpointer alarm_id, gboolean free_object, gboolean remove_alarm) { QueuedAlarm *qa; GSList *l; qa = NULL; for (l = cqa->queued_alarms; l; l = l->next) { qa = l->data; if (qa->alarm_id == alarm_id) break; } if (!l) return; cqa->queued_alarms = g_slist_remove_link (cqa->queued_alarms, l); g_slist_free_1 (l); if (remove_alarm) { cqa->expecting_update = TRUE; e_cal_discard_alarm (cqa->parent_client->client, cqa->alarms->comp, qa->instance->auid, NULL); cqa->expecting_update = FALSE; } g_free (qa); /* If this was the last queued alarm for this component, remove the * component itself. */ if (cqa->queued_alarms != NULL) return; if (free_object) { g_hash_table_remove (cqa->parent_client->uid_alarms_hash, cqa->uid); g_free (cqa->uid); cqa->uid = NULL; cqa->parent_client = NULL; e_cal_component_alarms_free (cqa->alarms); g_free (cqa); } else { e_cal_component_alarms_free (cqa->alarms); cqa->alarms = NULL; } } /* Callback used when an alarm triggers */ static void alarm_trigger_cb (gpointer alarm_id, time_t trigger, gpointer data) { CompQueuedAlarms *cqa; ECalComponent *comp; QueuedAlarm *qa; ECalComponentAlarm *alarm; ECalComponentAlarmAction action; cqa = data; comp = cqa->alarms->comp; save_notification_time (trigger); saved_notification_time = trigger; qa = lookup_queued_alarm (cqa, alarm_id); if (!qa) return; /* Decide what to do based on the alarm action. We use the trigger that * is passed to us instead of the one from the instance structure * because this may be a snoozed alarm instead of an original * occurrence. */ alarm = e_cal_component_get_alarm (comp, qa->instance->auid); g_assert (alarm != NULL); e_cal_component_alarm_get_action (alarm, &action); e_cal_component_alarm_free (alarm); switch (action) { case E_CAL_COMPONENT_ALARM_AUDIO: audio_notification (trigger, cqa, alarm_id); break; case E_CAL_COMPONENT_ALARM_DISPLAY: display_notification (trigger, cqa, alarm_id, TRUE); break; case E_CAL_COMPONENT_ALARM_EMAIL: mail_notification (trigger, cqa, alarm_id); break; case E_CAL_COMPONENT_ALARM_PROCEDURE: procedure_notification (trigger, cqa, alarm_id); break; default: g_assert_not_reached (); break; } } /* Adds the alarms in a ECalComponentAlarms structure to the alarms queued for a * particular client. Also puts the triggers in the alarm timer queue. */ static void add_component_alarms (ClientAlarms *ca, ECalComponentAlarms *alarms) { const char *uid; CompQueuedAlarms *cqa; GSList *l; /* No alarms? */ if (alarms->alarms == NULL) { e_cal_component_alarms_free (alarms); return; } cqa = g_new (CompQueuedAlarms, 1); cqa->parent_client = ca; cqa->alarms = alarms; cqa->expecting_update = FALSE; cqa->queued_alarms = NULL; for (l = alarms->alarms; l; l = l->next) { ECalComponentAlarmInstance *instance; gpointer alarm_id; QueuedAlarm *qa; instance = l->data; alarm_id = alarm_add (instance->trigger, alarm_trigger_cb, cqa, NULL); if (!alarm_id) { g_message ("add_component_alarms(): Could not schedule a trigger for " "%ld, discarding...", (long) instance->trigger); continue; } qa = g_new (QueuedAlarm, 1); qa->alarm_id = alarm_id; qa->instance = instance; qa->snooze = FALSE; cqa->queued_alarms = g_slist_prepend (cqa->queued_alarms, qa); } e_cal_component_get_uid (alarms->comp, &uid); /* If we failed to add all the alarms, then we should get rid of the cqa */ if (cqa->queued_alarms == NULL) { g_message ("add_component_alarms(): Could not add any of the alarms " "for the component `%s'; discarding it...", uid); e_cal_component_alarms_free (cqa->alarms); cqa->alarms = NULL; g_free (cqa); return; } cqa->queued_alarms = g_slist_reverse (cqa->queued_alarms); cqa->uid = g_strdup (uid); g_hash_table_insert (ca->uid_alarms_hash, cqa->uid, cqa); } /* Loads the alarms of a client for a given range of time */ static void load_alarms (ClientAlarms *ca, time_t start, time_t end) { GSList *comp_alarms; GSList *l; comp_alarms = e_cal_get_alarms_in_range (ca->client, start, end); for (l = comp_alarms; l; l = l->next) { ECalComponentAlarms *alarms; alarms = l->data; add_component_alarms (ca, alarms); } g_slist_free (comp_alarms); } /* Loads today's remaining alarms for a client */ static void load_alarms_for_today (ClientAlarms *ca) { time_t now, day_end; icaltimezone *zone; now = time (NULL); zone = config_data_get_timezone (); day_end = time_day_end_with_zone (now, zone); load_alarms (ca, now, day_end); } /* Adds any alarms that should have occurred while the alarm daemon was not * running. */ static void load_missed_alarms (ClientAlarms *ca) { time_t now; now = time (NULL); g_assert (saved_notification_time != -1); /* We add 1 to the saved_notification_time to make the time ranges * half-open; we do not want to display the "last" displayed alarm * twice, once when it occurs and once when the alarm daemon restarts. */ load_alarms (ca, saved_notification_time + 1, now); } /* Called when a calendar client finished loading; we load its alarms */ static void cal_opened_cb (ECal *client, ECalendarStatus status, gpointer data) { ClientAlarms *ca; ca = data; if (status != E_CALENDAR_STATUS_OK) return; load_alarms_for_today (ca); load_missed_alarms (ca); } /* Looks up a component's queued alarm structure in a client alarms structure */ static CompQueuedAlarms * lookup_comp_queued_alarms (ClientAlarms *ca, const char *uid) { return g_hash_table_lookup (ca->uid_alarms_hash, uid); } static void remove_alarms (CompQueuedAlarms *cqa, gboolean free_object) { GSList *l; for (l = cqa->queued_alarms; l;) { QueuedAlarm *qa; qa = l->data; /* Get the next element here because the list element will go * away in remove_queued_alarm(). The qa will be freed there as * well. */ l = l->next; alarm_remove (qa->alarm_id); remove_queued_alarm (cqa, qa->alarm_id, free_object, FALSE); } } /* Removes a component an its alarms */ static void remove_comp (ClientAlarms *ca, const char *uid) { CompQueuedAlarms *cqa; cqa = lookup_comp_queued_alarms (ca, uid); if (!cqa) return; /* If a component is present, then it means we must have alarms queued * for it. */ g_assert (cqa->queued_alarms != NULL); remove_alarms (cqa, TRUE); /* The list should be empty now, and thus the queued component alarms * structure should have been freed and removed from the hash table. */ g_assert (lookup_comp_queued_alarms (ca, uid) == NULL); } /* Called when a calendar component changes; we must reload its corresponding * alarms. */ static void obj_updated_cb (ECal *client, const char *uid, gpointer data) { ClientAlarms *ca; time_t now, day_end; ECalComponentAlarms *alarms; gboolean found; icaltimezone *zone; CompQueuedAlarms *cqa; ca = data; now = time (NULL); zone = config_data_get_timezone (); day_end = time_day_end_with_zone (now, zone); found = e_cal_get_alarms_for_object (ca->client, uid, now, day_end, &alarms); if (!found) { remove_comp (ca, uid); return; } cqa = lookup_comp_queued_alarms (ca, uid); if (!cqa) add_component_alarms (ca, alarms); else { GSList *l; /* if already in the list, just update it */ remove_alarms (cqa, FALSE); cqa->alarms = alarms; cqa->queued_alarms = NULL; /* add the new alarms */ for (l = cqa->alarms->alarms; l; l = l->next) { ECalComponentAlarmInstance *instance; gpointer alarm_id; QueuedAlarm *qa; instance = l->data; alarm_id = alarm_add (instance->trigger, alarm_trigger_cb, cqa, NULL); if (!alarm_id) { g_message ("obj_updated_cb(): Could not schedule a trigger for " "%ld, discarding...", (long) instance->trigger); continue; } qa = g_new (QueuedAlarm, 1); qa->alarm_id = alarm_id; qa->instance = instance; qa->snooze = FALSE; cqa->queued_alarms = g_slist_prepend (cqa->queued_alarms, qa); } if (cqa->queued_alarms == NULL) { if (!cqa->expecting_update) remove_comp (ca, uid); } else cqa->queued_alarms = g_slist_reverse (cqa->queued_alarms); } } /* Called when a calendar component is removed; we must delete its corresponding * alarms. */ static void obj_removed_cb (ECal *client, const char *uid, gpointer data) { ClientAlarms *ca; ca = data; remove_comp (ca, uid); } /* Notification functions */ /* Creates a snooze alarm based on an existing one. The snooze offset is * compued with respect to the current time. */ static void create_snooze (CompQueuedAlarms *cqa, gpointer alarm_id, int snooze_mins) { QueuedAlarm *orig_qa; time_t t; gpointer new_id; orig_qa = lookup_queued_alarm (cqa, alarm_id); if (!orig_qa) return; t = time (NULL); t += snooze_mins * 60; new_id = alarm_add (t, alarm_trigger_cb, cqa, NULL); if (!new_id) { g_message ("create_snooze(): Could not schedule a trigger for " "%ld, discarding...", (long) t); return; } orig_qa->instance->trigger = t; orig_qa->alarm_id = new_id; orig_qa->snooze = TRUE; } /* Launches a component editor for a component */ static void edit_component (ECal *client, ECalComponent *comp) { const char *uid; const char *uri; CORBA_Environment ev; GNOME_Evolution_Calendar_CompEditorFactory factory; e_cal_component_get_uid (comp, &uid); uri = e_cal_get_uri (client); /* Get the factory */ CORBA_exception_init (&ev); factory = bonobo_activation_activate_from_id ("OAFIID:GNOME_Evolution_Calendar_CompEditorFactory", 0, NULL, &ev); if (ev._major != CORBA_NO_EXCEPTION) { g_message ("edit_component(): Could not activate the component editor factory"); CORBA_exception_free (&ev); return; } CORBA_exception_free (&ev); /* Edit the component */ CORBA_exception_init (&ev); GNOME_Evolution_Calendar_CompEditorFactory_editExisting (factory, uri, (char *) uid, &ev); if (ev._major != CORBA_NO_EXCEPTION) g_message ("edit_component(): Exception while editing the component"); CORBA_exception_free (&ev); /* Get rid of the factory */ CORBA_exception_init (&ev); bonobo_object_release_unref (factory, &ev); if (ev._major != CORBA_NO_EXCEPTION) g_message ("edit_component(): Could not unref the calendar component factory"); CORBA_exception_free (&ev); } /* /\* Callback used from the alarm notify dialog *\/ */ /* static void */ /* notify_dialog_cb (AlarmNotifyResult result, int snooze_mins, gpointer data) */ /* { */ /* switch (result) { */ /* case ALARM_NOTIFY_SNOOZE: */ /* create_snooze (c->cqa, c->alarm_id, snooze_mins); */ /* g_object_unref (c->comp); */ /* g_object_unref (c->client); */ /* g_free (c); */ /* return; */ /* case ALARM_NOTIFY_EDIT: */ /* edit_component (c->client, c->comp); */ /* break; */ /* case ALARM_NOTIFY_CLOSE: */ /* /\* Do nothing *\/ */ /* break; */ /* default: */ /* g_assert_not_reached (); */ /* } */ /* if (c->cqa != NULL) */ /* remove_queued_alarm (c->cqa, c->alarm_id, TRUE, TRUE); */ /* g_object_unref (c->comp); */ /* g_object_unref (c->client); */ /* g_free (c); */ /* } */ typedef struct { char *message; gboolean blink_state; gint blink_id; time_t trigger; CompQueuedAlarms *cqa; gpointer alarm_id; ECalComponent *comp; ECal *client; GtkWidget *tray_icon; GtkWidget *image; GtkWidget *alarm_dialog; } TrayIconData; static void on_dialog_obj_updated_cb (ECal *client, const char *uid, gpointer data) { /* commented out so gcc won't complain about the unused variable struct notify_dialog_closure *c = data; */ } static void on_dialog_obj_removed_cb (ECal *client, const char *uid, gpointer data) { const char *our_uid; TrayIconData *tray_data = data; e_cal_component_get_uid (tray_data->comp, &our_uid); g_return_if_fail (our_uid && *our_uid); if (!strcmp (uid, our_uid)) { alarm_notify_dialog_disable_buttons (tray_data->alarm_dialog); tray_data->cqa = NULL; tray_data->alarm_id = NULL; } } /* Callback used from the alarm notify dialog */ static void notify_dialog_cb (AlarmNotifyResult result, int snooze_mins, gpointer data) { TrayIconData *tray_data = data; g_signal_handlers_disconnect_matched (tray_data->client, G_SIGNAL_MATCH_FUNC, 0, 0, NULL, on_dialog_obj_removed_cb, NULL); switch (result) { case ALARM_NOTIFY_SNOOZE: create_snooze (tray_data->cqa, tray_data->alarm_id, snooze_mins); tray_data->cqa = NULL; return; case ALARM_NOTIFY_EDIT: edit_component (tray_data->client, tray_data->comp); break; case ALARM_NOTIFY_CLOSE: /* Do nothing */ break; default: g_assert_not_reached (); } tray_data->alarm_dialog = NULL; gtk_widget_destroy (tray_data->tray_icon); } static gint tray_icon_destroyed_cb (GtkWidget *tray, gpointer user_data) { TrayIconData *tray_data = user_data; if (tray_data->cqa != NULL) remove_queued_alarm (tray_data->cqa, tray_data->alarm_id, TRUE, TRUE); if (tray_data->message != NULL) { g_free (tray_data->message); tray_data->message = NULL; } g_source_remove (tray_data->blink_id); g_object_unref (tray_data->comp); g_object_unref (tray_data->client); g_free (tray_data); return TRUE; } static gint tray_icon_clicked_cb (GtkWidget *widget, GdkEventButton *event, gpointer user_data) { TrayIconData *tray_data = user_data; if (event->type == GDK_BUTTON_PRESS) { if (event->button == 1) { QueuedAlarm *qa; if (tray_data->alarm_dialog != NULL) return FALSE; qa = lookup_queued_alarm (tray_data->cqa, tray_data->alarm_id); if (qa) { gtk_widget_hide (tray_data->tray_icon); tray_data->alarm_dialog = alarm_notify_dialog ( tray_data->trigger, qa->instance->occur_start, qa->instance->occur_end, e_cal_component_get_vtype (tray_data->comp), tray_data->message, notify_dialog_cb, tray_data); if (tray_data->alarm_dialog) { g_signal_connect (G_OBJECT (tray_data->client), "obj_removed", G_CALLBACK (on_dialog_obj_removed_cb), tray_data); } } return TRUE; } else if (event->button == 2) { return TRUE; } } return FALSE; } static gboolean tray_icon_blink_cb (gpointer data) { TrayIconData *tray_data = data; /* FIXME: Use stock image equivalents when they become available */ tray_data->blink_state = tray_data->blink_state == TRUE ? FALSE : TRUE; gtk_image_set_from_file (GTK_IMAGE (tray_data->image), tray_data->blink_state == TRUE ? EVOLUTION_IMAGESDIR "/appointment-reminder-excl.png" : EVOLUTION_IMAGESDIR "/appointment-reminder.png"); return TRUE; } /* Performs notification of a display alarm */ static void display_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id, gboolean use_description) { QueuedAlarm *qa; ECalComponent *comp; ECal *client; ECalComponentVType vtype; const char *message; ECalComponentAlarm *alarm; GtkWidget *tray_icon, *image, *ebox; GtkTooltips *tooltips; TrayIconData *tray_data; ECalComponentText text; char *str, *start_str, *end_str, *alarm_str; icaltimezone *current_zone; comp = cqa->alarms->comp; qa = lookup_queued_alarm (cqa, alarm_id); if (!qa) return; vtype = e_cal_component_get_vtype (comp); /* get a sensible description for the event */ alarm = e_cal_component_get_alarm (comp, qa->instance->auid); g_assert (alarm != NULL); e_cal_component_alarm_get_description (alarm, &text); e_cal_component_alarm_free (alarm); if (text.value) message = text.value; else { e_cal_component_get_summary (comp, &text); if (text.value) message = text.value; else message = _("No description available."); } /* create the tray icon */ tooltips = gtk_tooltips_new (); /* FIXME: Use stock image equivalent when it becomes available */ tray_icon = egg_tray_icon_new (qa->instance->auid); image = gtk_image_new_from_file (EVOLUTION_IMAGESDIR "/appointment-reminder.png"); ebox = gtk_event_box_new (); gtk_widget_show (image); gtk_widget_show (ebox); current_zone = config_data_get_timezone (); alarm_str = timet_to_str_with_zone (trigger, current_zone); start_str = timet_to_str_with_zone (qa->instance->occur_start, current_zone); end_str = timet_to_str_with_zone (qa->instance->occur_end, current_zone); str = g_strdup_printf (_("Alarm on %s\n%s\nStarting at %s\nEnding at %s"), alarm_str, message, start_str, end_str); gtk_tooltips_set_tip (GTK_TOOLTIPS (tooltips), ebox, str, str); g_free (start_str); g_free (end_str); g_free (alarm_str); g_free (str); g_object_set_data (G_OBJECT (tray_icon), "image", image); g_object_set_data (G_OBJECT (tray_icon), "available", GINT_TO_POINTER (1)); gtk_container_add (GTK_CONTAINER (ebox), image); gtk_container_add (GTK_CONTAINER (tray_icon), ebox); /* create the private structure */ tray_data = g_new0 (TrayIconData, 1); tray_data->message = g_strdup (message); tray_data->trigger = trigger; tray_data->cqa = cqa; tray_data->alarm_id = alarm_id; tray_data->comp = e_cal_component_clone (comp); tray_data->client = cqa->parent_client->client; tray_data->image = image; tray_data->blink_state = FALSE; g_object_ref (tray_data->client); tray_data->tray_icon = tray_icon; g_signal_connect (G_OBJECT (tray_icon), "destroy", G_CALLBACK (tray_icon_destroyed_cb), tray_data); g_signal_connect (G_OBJECT (ebox), "button_press_event", G_CALLBACK (tray_icon_clicked_cb), tray_data); tray_data->blink_id = g_timeout_add (500, tray_icon_blink_cb, tray_data); gtk_widget_show (tray_icon); } /* Performs notification of an audio alarm */ static void audio_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id) { QueuedAlarm *qa; ECalComponent *comp; ECalComponentAlarm *alarm; icalattach *attach; comp = cqa->alarms->comp; qa = lookup_queued_alarm (cqa, alarm_id); if (!qa) return; alarm = e_cal_component_get_alarm (comp, qa->instance->auid); g_assert (alarm != NULL); e_cal_component_alarm_get_attach (alarm, &attach); e_cal_component_alarm_free (alarm); if (attach && icalattach_get_is_url (attach)) { const char *url; url = icalattach_get_url (attach); if (url && *url && g_file_test (url, G_FILE_TEST_EXISTS)) gnome_sound_play (url); /* this sucks */ else gdk_beep (); } if (attach) icalattach_unref (attach); /* We present a notification message in addition to playing the sound */ display_notification (trigger, cqa, alarm_id, FALSE); } /* Performs notification of a mail alarm */ static void mail_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id) { GtkWidget *dialog; GtkWidget *label; /* FIXME */ display_notification (trigger, cqa, alarm_id, FALSE); dialog = gtk_dialog_new_with_buttons (_("Warning"), NULL, 0, GTK_STOCK_OK, GTK_RESPONSE_CANCEL, NULL); label = gtk_label_new (_("Evolution does not support calendar reminders with\n" "email notifications yet, but this reminder was\n" "configured to send an email. Evolution will display\n" "a normal reminder dialog box instead.")); gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), label, TRUE, TRUE, 4); gtk_dialog_run (GTK_DIALOG (dialog)); } /* Performs notification of a procedure alarm */ static gboolean procedure_notification_dialog (const char *cmd, const char *url) { GtkWidget *dialog, *label, *checkbox; char *str; int btn; if (is_blessed_program (url)) return TRUE; dialog = gtk_dialog_new_with_buttons (_("Warning"), NULL, 0, GTK_STOCK_NO, GTK_RESPONSE_CANCEL, GTK_STOCK_YES, GTK_RESPONSE_OK, NULL); str = g_strdup_printf (_("An Evolution Calendar reminder is about to trigger. " "This reminder is configured to run the following program:\n\n" " %s\n\n" "Are you sure you want to run this program?"), cmd); label = gtk_label_new (str); gtk_label_set_line_wrap (GTK_LABEL (label), TRUE); gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_LEFT); gtk_widget_show (label); gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), label, TRUE, TRUE, 4); g_free (str); checkbox = gtk_check_button_new_with_label (_("Do not ask me about this program again.")); gtk_widget_show (checkbox); gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), checkbox, TRUE, TRUE, 4); /* Run the dialog */ btn = gtk_dialog_run (GTK_DIALOG (dialog)); if (btn == GTK_RESPONSE_OK && gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (checkbox))) save_blessed_program (url); gtk_widget_destroy (dialog); return (btn == GTK_RESPONSE_OK); } static void procedure_notification (time_t trigger, CompQueuedAlarms *cqa, gpointer alarm_id) { QueuedAlarm *qa; ECalComponent *comp; ECalComponentAlarm *alarm; ECalComponentText description; icalattach *attach; const char *url; char *cmd; int result; comp = cqa->alarms->comp; qa = lookup_queued_alarm (cqa, alarm_id); if (!qa) return; alarm = e_cal_component_get_alarm (comp, qa->instance->auid); g_assert (alarm != NULL); e_cal_component_alarm_get_attach (alarm, &attach); e_cal_component_alarm_get_description (alarm, &description); e_cal_component_alarm_free (alarm); /* If the alarm has no attachment, simply display a notification dialog. */ if (!attach) goto fallback; if (!icalattach_get_is_url (attach)) { icalattach_unref (attach); goto fallback; } url = icalattach_get_url (attach); g_assert (url != NULL); /* Ask for confirmation before executing the stuff */ if (description.value) cmd = g_strconcat (url, " ", description.value, NULL); else cmd = (char *) url; result = 0; if (procedure_notification_dialog (cmd, url)) result = gnome_execute_shell (NULL, cmd); if (cmd != (char *) url) g_free (cmd); icalattach_unref (attach); /* Fall back to display notification if we got an error */ if (result < 0) goto fallback; remove_queued_alarm (cqa, alarm_id, TRUE, TRUE); return; fallback: display_notification (trigger, cqa, alarm_id, FALSE); } /** * alarm_queue_init: * * Initializes the alarm queueing system. This should be called near the * beginning of the program. **/ void alarm_queue_init (void) { g_return_if_fail (alarm_queue_inited == FALSE); client_alarms_hash = g_hash_table_new (g_direct_hash, g_direct_equal); queue_midnight_refresh (); saved_notification_time = get_saved_notification_time (); if (saved_notification_time == -1) { saved_notification_time = time (NULL); save_notification_time (saved_notification_time); } alarm_queue_inited = TRUE; } static void free_client_alarms_cb (gpointer key, gpointer value, gpointer user_data) { ECal *client = key; ClientAlarms *ca = value; if (ca) { g_object_unref (ca->client); g_free (ca); } } /** * alarm_queue_done: * * Shuts down the alarm queueing system. This should be called near the end * of the program. All the monitored calendar clients should already have been * unregistered with alarm_queue_remove_client(). **/ void alarm_queue_done (void) { g_return_if_fail (alarm_queue_inited); /* All clients must be unregistered by now */ g_return_if_fail (g_hash_table_size (client_alarms_hash) == 0); g_hash_table_foreach (client_alarms_hash, (GHFunc) free_client_alarms_cb, NULL); g_hash_table_destroy (client_alarms_hash); client_alarms_hash = NULL; g_assert (midnight_refresh_id != NULL); alarm_remove (midnight_refresh_id); midnight_refresh_id = NULL; alarm_queue_inited = FALSE; } /** * alarm_queue_add_client: * @client: A calendar client. * * Adds a calendar client to the alarm queueing system. Alarm trigger * notifications will be presented at the appropriate times. The client should * be removed with alarm_queue_remove_client() when receiving notifications * from it is no longer desired. * * A client can be added any number of times to the alarm queueing system, * but any single alarm trigger will only be presented once for a particular * client. The client must still be removed the same number of times from the * queueing system when it is no longer wanted. **/ void alarm_queue_add_client (ECal *client) { ClientAlarms *ca; g_return_if_fail (alarm_queue_inited); g_return_if_fail (client != NULL); g_return_if_fail (E_IS_CAL (client)); ca = lookup_client (client); if (ca) { ca->refcount++; return; } ca = g_new (ClientAlarms, 1); ca->client = client; g_object_ref (ca->client); ca->refcount = 1; g_hash_table_insert (client_alarms_hash, client, ca); ca->uid_alarms_hash = g_hash_table_new (g_str_hash, g_str_equal); if (e_cal_get_load_state (client) != E_CAL_LOAD_LOADED) g_signal_connect (client, "cal_opened", G_CALLBACK (cal_opened_cb), ca); g_signal_connect (client, "obj_updated", G_CALLBACK (obj_updated_cb), ca); g_signal_connect (client, "obj_removed", G_CALLBACK (obj_removed_cb), ca); if (e_cal_get_load_state (client) == E_CAL_LOAD_LOADED) { load_alarms_for_today (ca); load_missed_alarms (ca); } } /* Called from g_hash_table_foreach(); adds a component UID to a list */ static void add_uid_cb (gpointer key, gpointer value, gpointer data) { GSList **uids; const char *uid; uids = data; uid = key; *uids = g_slist_prepend (*uids, (char *) uid); } /* Removes all the alarms queued for a particular calendar client */ static void remove_client_alarms (ClientAlarms *ca) { GSList *uids; GSList *l; /* First we build a list of UIDs so that we can remove them one by one */ uids = NULL; g_hash_table_foreach (ca->uid_alarms_hash, add_uid_cb, &uids); for (l = uids; l; l = l->next) { const char *uid; uid = l->data; remove_comp (ca, uid); } g_slist_free (uids); /* The hash table should be empty now */ g_assert (g_hash_table_size (ca->uid_alarms_hash) == 0); } /** * alarm_queue_remove_client: * @client: A calendar client. * * Removes a calendar client from the alarm queueing system. **/ void alarm_queue_remove_client (ECal *client) { ClientAlarms *ca; g_return_if_fail (alarm_queue_inited); g_return_if_fail (client != NULL); g_return_if_fail (E_IS_CAL (client)); ca = lookup_client (client); g_return_if_fail (ca != NULL); g_assert (ca->refcount > 0); ca->refcount--; if (ca->refcount > 0) return; remove_client_alarms (ca); /* Clean up */ g_signal_handlers_disconnect_matched (ca->client, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, ca); g_object_unref (ca->client); ca->client = NULL; g_hash_table_destroy (ca->uid_alarms_hash); ca->uid_alarms_hash = NULL; g_free (ca); g_hash_table_remove (client_alarms_hash, client); }