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-rw-r--r--src/idolocationmenuitem.c433
1 files changed, 433 insertions, 0 deletions
diff --git a/src/idolocationmenuitem.c b/src/idolocationmenuitem.c
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+/**
+ * Copyright 2013 Canonical Ltd.
+ *
+ * Authors:
+ * Charles Kerr <charles.kerr@canonical.com>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, 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 warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+ #include "config.h"
+#endif
+
+#include <string.h> /* strstr() */
+
+#include <gtk/gtk.h>
+
+#include "idoactionhelper.h"
+#include "idolocationmenuitem.h"
+
+enum
+{
+ PROP_0,
+ PROP_NAME,
+ PROP_TIMEZONE,
+ PROP_FORMAT,
+ PROP_LAST
+};
+
+static GParamSpec *properties[PROP_LAST];
+
+struct _IdoLocationMenuItemPrivate
+{
+ char * name;
+ char * timezone;
+ char * format;
+
+ guint timestamp_timer;
+
+ GtkWidget * name_label;
+ GtkWidget * timestamp_label;
+};
+
+typedef IdoLocationMenuItemPrivate priv_t;
+
+G_DEFINE_TYPE (IdoLocationMenuItem, ido_location_menu_item, GTK_TYPE_MENU_ITEM);
+
+/***
+**** Timestamp Label
+***/
+
+static void
+update_timestamp_label (IdoLocationMenuItem * self)
+{
+ priv_t * p = self->priv;
+
+ if (p->format && *p->format)
+ {
+ GTimeZone * tz;
+ GDateTime * now;
+ char * str;
+
+ tz = g_time_zone_new (p->timezone);
+ if (tz == NULL)
+ tz = g_time_zone_new_local ();
+ now = g_date_time_new_now (tz);
+ str = g_date_time_format (now, p->format);
+
+ gtk_label_set_text (GTK_LABEL(p->timestamp_label), str);
+
+ g_free (str);
+ g_date_time_unref (now);
+ g_time_zone_unref (tz);
+ }
+ else
+ {
+ gtk_label_set_text (GTK_LABEL(p->timestamp_label), "");
+ }
+}
+
+static void
+stop_timestamp_timer (IdoLocationMenuItem * self)
+{
+ priv_t * p = self->priv;
+
+ if (p->timestamp_timer != 0)
+ {
+ g_source_remove (p->timestamp_timer);
+ p->timestamp_timer = 0;
+ }
+}
+
+static void start_timestamp_timer (IdoLocationMenuItem * self);
+
+static gboolean
+on_timestamp_timer (gpointer gself)
+{
+ IdoLocationMenuItem * self = IDO_LOCATION_MENU_ITEM (gself);
+
+ update_timestamp_label (self);
+
+ start_timestamp_timer (self);
+ return G_SOURCE_REMOVE;
+}
+
+static guint
+calculate_seconds_until_next_minute (void)
+{
+ guint seconds;
+ GTimeSpan diff;
+ GDateTime * now;
+ GDateTime * next;
+ GDateTime * start_of_next;
+
+ now = g_date_time_new_now_local ();
+ next = g_date_time_add_minutes (now, 1);
+ start_of_next = g_date_time_new_local (g_date_time_get_year (next),
+ g_date_time_get_month (next),
+ g_date_time_get_day_of_month (next),
+ g_date_time_get_hour (next),
+ g_date_time_get_minute (next),
+ 1);
+
+ diff = g_date_time_difference (start_of_next, now);
+ seconds = (diff + (G_TIME_SPAN_SECOND - 1)) / G_TIME_SPAN_SECOND;
+
+ /* cleanup */
+ g_date_time_unref (start_of_next);
+ g_date_time_unref (next);
+ g_date_time_unref (now);
+
+ g_message ("%s %s the next minute will be here in %u seconds", G_STRLOC, G_STRFUNC, seconds);
+ return seconds;
+}
+
+static void
+start_timestamp_timer (IdoLocationMenuItem * self)
+{
+ int interval_sec;
+ gboolean timestamp_shows_seconds;
+ priv_t * p = self->priv;
+ const char * const fmt = p->format;
+
+ stop_timestamp_timer (self);
+
+ timestamp_shows_seconds = fmt && (strstr(fmt,"%s") ||
+ strstr(fmt,"%S") ||
+ strstr(fmt,"%T"));
+
+ if (timestamp_shows_seconds)
+ interval_sec = 1;
+ else
+ interval_sec = calculate_seconds_until_next_minute();
+
+ p->timestamp_timer = g_timeout_add_seconds (interval_sec,
+ on_timestamp_timer,
+ self);
+}
+
+/***
+**** GObject Virtual Functions
+***/
+
+static void
+my_get_property (GObject * o,
+ guint property_id,
+ GValue * value,
+ GParamSpec * pspec)
+{
+ IdoLocationMenuItem * self = IDO_LOCATION_MENU_ITEM (o);
+ priv_t * p = self->priv;
+
+ switch (property_id)
+ {
+ case PROP_NAME:
+ g_value_set_string (value, p->name);
+ break;
+
+ case PROP_TIMEZONE:
+ g_value_set_string (value, p->timezone);
+ break;
+
+ case PROP_FORMAT:
+ g_value_set_string (value, p->format);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
+ break;
+ }
+}
+
+static void
+my_set_property (GObject * o,
+ guint property_id,
+ const GValue * value,
+ GParamSpec * pspec)
+{
+ IdoLocationMenuItem * self = IDO_LOCATION_MENU_ITEM (o);
+
+ switch (property_id)
+ {
+ case PROP_NAME:
+ ido_location_menu_item_set_name (self, g_value_get_string (value));
+ break;
+
+ case PROP_TIMEZONE:
+ ido_location_menu_item_set_timezone (self, g_value_get_string (value));
+ break;
+
+ case PROP_FORMAT:
+ ido_location_menu_item_set_format (self, g_value_get_string (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
+ break;
+ }
+}
+
+static void
+my_dispose (GObject * object)
+{
+ stop_timestamp_timer (IDO_LOCATION_MENU_ITEM (object));
+
+ G_OBJECT_CLASS (ido_location_menu_item_parent_class)->dispose (object);
+}
+
+static void
+my_finalize (GObject * object)
+{
+ IdoLocationMenuItem * self = IDO_LOCATION_MENU_ITEM (object);
+ priv_t * p = self->priv;
+
+ g_free (p->format);
+ g_free (p->name);
+ g_free (p->timezone);
+
+ G_OBJECT_CLASS (ido_location_menu_item_parent_class)->finalize (object);
+}
+
+/***
+**** Instantiation
+***/
+
+static void
+ido_location_menu_item_class_init (IdoLocationMenuItemClass *klass)
+{
+ GParamFlags prop_flags;
+ GObjectClass * gobject_class = G_OBJECT_CLASS (klass);
+
+ g_type_class_add_private (klass, sizeof (IdoLocationMenuItemPrivate));
+
+ gobject_class->get_property = my_get_property;
+ gobject_class->set_property = my_set_property;
+ gobject_class->dispose = my_dispose;
+ gobject_class->finalize = my_finalize;
+
+ prop_flags = G_PARAM_CONSTRUCT
+ | G_PARAM_READWRITE
+ | G_PARAM_STATIC_STRINGS;
+
+ properties[PROP_NAME] = g_param_spec_string (
+ "name",
+ "The location's name",
+ "The name to display; eg, 'Oklahoma City'",
+ "Location",
+ prop_flags);
+
+ properties[PROP_TIMEZONE] = g_param_spec_string (
+ "timezone",
+ "timezone identifier",
+ "string used to identify a timezone; eg, 'America/Chicago'",
+ NULL,
+ prop_flags);
+
+ properties[PROP_FORMAT] = g_param_spec_string (
+ "format",
+ "strftime format",
+ "strftime-style format string for the timestamp",
+ "%T",
+ prop_flags);
+
+ g_object_class_install_properties (gobject_class, PROP_LAST, properties);
+}
+
+static void
+ido_location_menu_item_init (IdoLocationMenuItem *self)
+{
+ priv_t * p;
+ GtkBox * box;
+ GtkWidget * w;
+
+ self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+ IDO_LOCATION_MENU_ITEM_TYPE,
+ IdoLocationMenuItemPrivate);
+
+ p = self->priv;
+
+ p->name_label = gtk_label_new (NULL);
+ p->timestamp_label = gtk_label_new (NULL);
+
+ w = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3);
+ gtk_misc_set_alignment (GTK_MISC(p->timestamp_label), 1.0, 0.5);
+ box = GTK_BOX (w);
+ gtk_box_pack_start (box, p->name_label, FALSE, FALSE, 3);
+ gtk_box_pack_end (box, p->timestamp_label, FALSE, FALSE, 5);
+
+ gtk_widget_show_all (w);
+ gtk_container_add (GTK_CONTAINER (self), w);
+}
+
+
+/***
+**** Public API
+***/
+
+GtkWidget *
+ido_location_menu_item_new (void)
+{
+ return GTK_WIDGET (g_object_new (IDO_LOCATION_MENU_ITEM_TYPE, NULL));
+}
+
+/**
+ * @name: human-readable name, such as a city (eg: "Oklahoma City")
+ */
+void
+ido_location_menu_item_set_name (IdoLocationMenuItem * self,
+ const char * name)
+{
+ priv_t * p;
+
+ g_return_if_fail (IDO_IS_LOCATION_MENU_ITEM (self));
+ p = self->priv;
+
+ g_free (p->name);
+ p->name = g_strdup (name);
+ gtk_label_set_text (GTK_LABEL(p->name_label), p->name);
+}
+
+/**
+ * @timezone: timezone identifier (eg: "America/Chicago")
+ */
+void
+ido_location_menu_item_set_timezone (IdoLocationMenuItem * self,
+ const char * timezone)
+{
+ priv_t * p;
+
+ g_return_if_fail (IDO_IS_LOCATION_MENU_ITEM (self));
+ p = self->priv;
+
+ g_free (p->timezone);
+ p->timezone = g_strdup (timezone);
+ update_timestamp_label (self);
+}
+
+/**
+ * @strftime_fmt: the format string used to build the location's time string
+ */
+void
+ido_location_menu_item_set_format (IdoLocationMenuItem * self,
+ const char * strftime_fmt)
+{
+ priv_t * p;
+
+ g_return_if_fail (IDO_IS_LOCATION_MENU_ITEM (self));
+ p = self->priv;
+
+ g_free (p->format);
+ p->format = g_strdup (strftime_fmt);
+ update_timestamp_label (self);
+ start_timestamp_timer (self);
+}
+
+GtkMenuItem *
+ido_location_menu_item_new_from_model (GMenuItem * menu_item,
+ GActionGroup * actions)
+{
+ gchar * str;
+ IdoLocationMenuItem * ido_location;
+
+ ido_location = IDO_LOCATION_MENU_ITEM (ido_location_menu_item_new ());
+
+ if (g_menu_item_get_attribute (menu_item, "label", "s", &str))
+ {
+ ido_location_menu_item_set_name (ido_location, str);
+ g_free (str);
+ }
+
+ if (g_menu_item_get_attribute (menu_item, "x-canonical-timezone", "s", &str))
+ {
+ ido_location_menu_item_set_timezone (ido_location, str);
+ g_free (str);
+ }
+
+ if (g_menu_item_get_attribute (menu_item, "x-canonical-time-format", "s", &str))
+ {
+ ido_location_menu_item_set_format (ido_location, str);
+ g_free (str);
+ }
+
+ if (g_menu_item_get_attribute (menu_item, "action", "s", &str))
+ {
+ GVariant * target;
+ IdoActionHelper * helper;
+
+ target = g_menu_item_get_attribute_value (menu_item, "target",
+ G_VARIANT_TYPE_ANY);
+ helper = ido_action_helper_new (GTK_WIDGET(ido_location), actions,
+ str, target);
+ g_signal_connect_swapped (ido_location, "activate",
+ G_CALLBACK (ido_action_helper_activate), helper);
+ g_signal_connect_swapped (ido_location, "destroy",
+ G_CALLBACK (g_object_unref), helper);
+
+ if (target)
+ g_variant_unref (target);
+ g_free (str);
+ }
+
+ return GTK_MENU_ITEM (ido_location);
+}