rename the 'DatetimeLocation' classes to the more accurate name 'DatetimeTimezone'

1 files changed, 235 insertions, 0 deletions

diff --git a/src/timezone-file.c b/src/timezone-file.c
new file mode 100644
index 0000000..c7c2cf6
--- /dev/null
+++ b/src/timezone-file.c
@@ -0,0 +1,235 @@
+/*
+ * 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/>.
+ */
+
+#include "config.h"
+
+#include <glib.h>
+#include <glib/gi18n-lib.h>
+#include <gio/gio.h>
+
+#include "timezone-file.h"
+
+enum
+{
+  PROP_0,
+  PROP_FILENAME,
+  PROP_LAST
+};
+
+static GParamSpec * properties[PROP_LAST] = { 0 };
+
+struct _IndicatorDatetimeTimezoneFilePriv
+{
+  gchar * filename;
+  GFile * file;
+  GFileMonitor * monitor;
+  gchar * timezone;
+};
+
+typedef IndicatorDatetimeTimezoneFilePriv priv_t;
+
+G_DEFINE_TYPE (IndicatorDatetimeTimezoneFile,
+               indicator_datetime_timezone_file,
+               INDICATOR_TYPE_DATETIME_TIMEZONE)
+
+/***
+****
+***/
+
+static void
+reload (IndicatorDatetimeTimezoneFile * self)
+{
+  priv_t * p = self->priv;
+
+  GError * err = NULL;
+  gchar * new_timezone = NULL;
+
+  if (!g_file_get_contents (p->filename, &new_timezone, NULL, &err))
+    {
+      g_warning ("Unable to read timezone file '%s': %s", p->filename, err->message);
+      g_error_free (err);
+    }
+  else
+    {
+      g_strstrip (new_timezone);
+      g_free (p->timezone);
+      p->timezone = new_timezone;
+      indicator_datetime_timezone_notify_timezone (INDICATOR_DATETIME_TIMEZONE(self));
+    }
+}
+
+static void
+set_filename (IndicatorDatetimeTimezoneFile * self, const char * filename)
+{
+  GError * err;
+  priv_t * p = self->priv;
+
+  g_clear_object (&p->monitor);
+  g_clear_object (&p->file);
+  g_free (p->filename);
+
+  p->filename = g_strdup (filename);
+  p->file = g_file_new_for_path (p->filename);
+
+  err = NULL;
+  p->monitor = g_file_monitor_file (p->file, G_FILE_MONITOR_NONE, NULL, &err);
+  if (err != NULL)
+    {
+      g_warning ("Unable to monitor timezone file '%s': %s", TIMEZONE_FILE, err->message);
+      g_error_free (err);
+    }
+  else
+    {
+      g_signal_connect_swapped (p->monitor, "changed", G_CALLBACK(reload), self);
+      g_debug ("Monitoring timezone file '%s'", p->filename);
+    }
+
+  reload (self);
+}
+
+/***
+**** IndicatorDatetimeTimezoneClass funcs
+***/
+
+static const char *
+my_get_timezone (IndicatorDatetimeTimezone * self)
+{
+  return INDICATOR_DATETIME_TIMEZONE_FILE(self)->priv->timezone;
+}
+
+/***
+**** GObjectClass funcs
+***/
+
+static void
+my_get_property (GObject     * o,
+                 guint         property_id,
+                 GValue      * value,
+                 GParamSpec  * pspec)
+{
+  IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
+
+  switch (property_id)
+    {
+      case PROP_FILENAME:
+        g_value_set_string (value, self->priv->filename);
+        break;
+
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
+    }
+}
+
+static void
+my_set_property (GObject       * o,
+                 guint           property_id,
+                 const GValue  * value,
+                 GParamSpec    * pspec)
+{
+  IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
+
+  switch (property_id)
+    {
+      case PROP_FILENAME:
+        set_filename (self, g_value_get_string (value));
+        break;
+
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (o, property_id, pspec);
+    }
+}
+  
+static void
+my_dispose (GObject * o)
+{
+  IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
+  priv_t * p = self->priv;
+
+  g_clear_object (&p->monitor);
+  g_clear_object (&p->file);
+
+  G_OBJECT_CLASS (indicator_datetime_timezone_file_parent_class)->dispose (o);
+}
+
+static void
+my_finalize (GObject * o)
+{
+  IndicatorDatetimeTimezoneFile * self = INDICATOR_DATETIME_TIMEZONE_FILE (o);
+  priv_t * p = self->priv;
+
+  g_free (p->filename);
+  g_free (p->timezone);
+
+  G_OBJECT_CLASS (indicator_datetime_timezone_file_parent_class)->finalize (o);
+}
+
+/***
+****
+***/
+
+static void
+indicator_datetime_timezone_file_class_init (IndicatorDatetimeTimezoneFileClass * klass)
+{
+  GObjectClass * object_class;
+  IndicatorDatetimeTimezoneClass * location_class;
+  const GParamFlags flags = G_PARAM_CONSTRUCT | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS;
+
+  object_class = G_OBJECT_CLASS (klass);
+  object_class->dispose = my_dispose;
+  object_class->finalize = my_finalize;
+  object_class->set_property = my_set_property;
+  object_class->get_property = my_get_property;
+
+  location_class = INDICATOR_DATETIME_TIMEZONE_CLASS (klass);
+  location_class->get_timezone = my_get_timezone;
+
+  g_type_class_add_private (klass, sizeof (IndicatorDatetimeTimezoneFilePriv));
+
+  /* install properties */
+
+  properties[PROP_0] = NULL;
+
+  properties[PROP_FILENAME] = g_param_spec_string ("filename",
+                                                   "Filename",
+                                                   "Filename to monitor for TZ changes",
+                                                   "",
+                                                   flags);
+
+  g_object_class_install_properties (object_class, PROP_LAST, properties);
+}
+
+static void
+indicator_datetime_timezone_file_init (IndicatorDatetimeTimezoneFile * self)
+{
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+                                            INDICATOR_TYPE_DATETIME_TIMEZONE_FILE,
+                                            IndicatorDatetimeTimezoneFilePriv);
+}
+
+/***
+****  Public
+***/
+
+IndicatorDatetimeTimezone *
+indicator_datetime_timezone_file_new (const char * filename)
+{
+  gpointer o = g_object_new (INDICATOR_TYPE_DATETIME_TIMEZONE_FILE, "filename", filename, NULL);
+
+  return INDICATOR_DATETIME_TIMEZONE (o);
+}