add timezone-file + tests

1 files changed, 89 insertions, 0 deletions

diff --git a/src/timezone-file.cpp b/src/timezone-file.cpp
new file mode 100644
index 0000000..f1d0dca
--- /dev/null
+++ b/src/timezone-file.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * 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/>.
+ *
+ * Authors:
+ *   Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#include <datetime/timezone-file.h>
+
+namespace unity {
+namespace indicator {
+namespace datetime {
+
+void
+FileTimezone::clear()
+{
+    if (monitor_handler_id_)
+        g_signal_handler_disconnect(monitor_, monitor_handler_id_);
+
+    g_clear_object (&monitor_);
+
+    filename_.clear();
+}
+
+void
+FileTimezone::setFilename(const std::string& filename)
+{
+    clear();
+
+    filename_ = filename;
+
+    auto file = g_file_new_for_path(filename.c_str());
+    GError * err = nullptr;
+    monitor_ = g_file_monitor_file(file, G_FILE_MONITOR_NONE, nullptr, &err);
+    g_object_unref(file);
+    if (err)
+      {
+        g_warning("%s Unable to monitor timezone file '%s': %s", G_STRLOC, TIMEZONE_FILE, err->message);
+        g_error_free(err);
+      }
+    else
+      {
+        monitor_handler_id_ = g_signal_connect_swapped(monitor_, "changed", G_CALLBACK(onFileChanged), this);
+        g_debug("%s Monitoring timezone file '%s'", G_STRLOC, filename.c_str());
+      }
+
+    reload();
+}
+
+void
+FileTimezone::onFileChanged(gpointer gself)
+{
+    static_cast<FileTimezone*>(gself)->reload();
+}
+
+void
+FileTimezone::reload()
+{
+    GError * err = nullptr;
+    gchar * str = nullptr;
+
+    if (!g_file_get_contents(filename_.c_str(), &str, nullptr, &err))
+    {
+        g_warning("%s Unable to read timezone file '%s': %s", G_STRLOC, filename_.c_str(), err->message);
+        g_error_free(err);
+    }
+    else
+    {
+        g_strstrip(str);
+        timezone.set(str);
+        g_free(str);
+    }
+}
+
+} // namespace datetime
+} // namespace indicator
+} // namespace unity