From 38aea51b22d1e63b778c0e0cc654edb71b828c4a Mon Sep 17 00:00:00 2001
From: Jon Lund Steffensen <jonlst@gmail.com>
Date: Tue, 25 May 2010 01:23:42 +0200
Subject: Add location provider that reads location from the gconf key
 associated  with the GNOME Clock applet. The implementation is rather
 simplistic as  it only reads the location once on init but that'll have to do
 for now.

---
 src/location-gnome-clock.c | 139 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 src/location-gnome-clock.c

(limited to 'src/location-gnome-clock.c')

diff --git a/src/location-gnome-clock.c b/src/location-gnome-clock.c
new file mode 100644
index 0000000..3136ff2
--- /dev/null
+++ b/src/location-gnome-clock.c
@@ -0,0 +1,139 @@
+/* location-gnome-clock.c -- GNOME Panel Clock location provider source
+   This file is part of Redshift.
+
+   Redshift is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Redshift 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 Redshift.  If not, see <http://www.gnu.org/licenses/>.
+
+   Copyright (c) 2010  Jon Lund Steffensen <jonlst@gmail.com>
+*/
+
+#include <stdio.h>
+#include <string.h>
+
+#include <gconf/gconf-client.h>
+
+#include "location-gnome-clock.h"
+
+#ifdef ENABLE_NLS
+# include <libintl.h>
+# define _(s) gettext(s)
+#else
+# define _(s) s
+#endif
+
+
+int
+location_gnome_clock_init(location_gnome_clock_state_t *state, char *args)
+{
+	g_type_init();
+
+	GError *error = NULL;
+	GConfClient *client = gconf_client_get_default();
+
+	GSList *applets = gconf_client_all_dirs(client, "/apps/panel/applets",
+						&error);
+	if (error) {
+		fputs(_("Cannot list dirs in `/apps/panel/applets'.\n"),
+		      stderr);
+		g_object_unref(client);
+		return -1;
+	}
+
+	char *cities_key = NULL;
+	for (GSList *applet = applets; applet != NULL;
+	     applet = g_slist_next(applet)) {
+		char *path = applet->data;
+		if (cities_key == NULL) {
+			char *key = g_strdup_printf("%s/bonobo_iid", path);
+			char *bonobo_iid = gconf_client_get_string(client, key,
+								   &error);
+
+			if (!error && bonobo_iid != NULL) {
+				if (!strcmp(bonobo_iid,
+					    "OAFIID:GNOME_ClockApplet")) {
+					cities_key = g_strdup_printf(
+						"%s/prefs/cities", path);
+				}
+				g_free(bonobo_iid);
+			}
+
+			g_free(key);
+		}
+		g_free(path);
+	}
+
+	g_slist_free(applets);
+
+	if (cities_key == NULL) {
+		fputs(_("No clock applet was found.\n"), stderr);
+		g_object_unref(client);
+		return -1;
+	}
+
+	GSList *cities = gconf_client_get_list(client, cities_key,
+					       GCONF_VALUE_STRING, &error);
+	if (error) {
+		fprintf(stderr, _("Error reading city list: `%s'.\n"),
+			cities_key);
+		g_free(cities_key);
+		g_object_unref(client);
+		return -1;
+	}
+
+	g_free(cities_key);
+
+	char *current_city = NULL;
+	for (GSList *city = cities; city != NULL;
+	     city = g_slist_next(city)) {
+		char *city_spec = city->data;
+		char *c = strstr(city_spec, "current=\"true\"");
+		if (c) current_city = g_strdup(city_spec);
+		g_free(city->data);
+	}
+	g_slist_free(cities);
+
+	if (current_city == NULL) {
+		fputs(_("No city selected as current city.\n"), stderr);
+		return -1;
+	}
+
+	char *lat_str = strstr(current_city, "latitude=\"");
+	char *lon_str = strstr(current_city, "longitude=\"");
+	if (lat_str == NULL || lon_str == NULL) {
+		fputs(_("Location not specified for city.\n"), stderr);
+		return -1;
+	}
+
+	char *lat_num_str = lat_str + strlen("latitude=\"");
+	char *lon_num_str = lon_str + strlen("longitude=\"");
+
+	state->lat = g_ascii_strtod(lat_num_str, NULL);
+	state->lon = g_ascii_strtod(lon_num_str, NULL);
+
+	return 0;
+}
+
+void
+location_gnome_clock_free(location_gnome_clock_state_t *state)
+{
+}
+
+int
+location_gnome_clock_get_location(location_gnome_clock_state_t *state,
+				  float *lat, float *lon)
+{
+	*lat = state->lat;
+	*lon = state->lon;
+
+	return 0;
+}
-- 
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