add formatter + tests

1 files changed, 210 insertions, 0 deletions

diff --git a/src/formatter-desktop.cpp b/src/formatter-desktop.cpp
new file mode 100644
index 0000000..8390967
--- /dev/null
+++ b/src/formatter-desktop.cpp
@@ -0,0 +1,210 @@
+/*
+ * 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/formatter.h>
+#include <datetime/settings-shared.h>
+
+#include <glib.h>
+#include <gio/gio.h>
+
+namespace unity {
+namespace indicator {
+namespace datetime {
+
+/***
+****
+***/
+
+class DesktopFormatter::Impl
+{
+public:
+
+    Impl (DesktopFormatter * owner, const std::shared_ptr<Clock>& clock):
+        owner_(owner),
+        clock_(clock),
+        settings_(g_settings_new(SETTINGS_INTERFACE))
+    {
+        const gchar * const keys[] = { "changed::" SETTINGS_SHOW_SECONDS_S,
+                                       "changed::" SETTINGS_TIME_FORMAT_S,
+                                       "changed::" SETTINGS_TIME_FORMAT_S,
+                                       "changed::" SETTINGS_CUSTOM_TIME_FORMAT_S,
+                                       "changed::" SETTINGS_SHOW_DAY_S,
+                                       "changed::" SETTINGS_SHOW_DATE_S,
+                                       "changed::" SETTINGS_SHOW_YEAR_S };
+        for (guint i=0, n=G_N_ELEMENTS(keys); i<n; i++)
+            g_signal_connect(settings_, keys[i], G_CALLBACK(onSettingsChanged), this);
+
+        rebuildHeaderFormat();
+    }
+
+    ~Impl()
+    {
+        g_signal_handlers_disconnect_by_data (settings_, this);
+        g_object_unref (settings_);
+    }
+
+private:
+
+    static void onSettingsChanged (GSettings   * changed G_GNUC_UNUSED,
+                                   const gchar * key   G_GNUC_UNUSED,
+                                   gpointer      gself)
+    {
+        static_cast<Impl*>(gself)->rebuildHeaderFormat();
+    }
+
+    void rebuildHeaderFormat()
+    {
+        gchar * fmt = getHeaderLabelFormatString (settings_);
+        owner_->headerFormat.set(fmt);
+        g_free (fmt);
+    }
+
+private:
+
+    gchar* getHeaderLabelFormatString (GSettings * s) const
+    {
+        char * fmt;
+        const TimeFormatMode mode = (TimeFormatMode) g_settings_get_enum (s, SETTINGS_TIME_FORMAT_S);
+
+        if (mode == TIME_FORMAT_MODE_CUSTOM)
+        {
+            fmt = g_settings_get_string (s, SETTINGS_CUSTOM_TIME_FORMAT_S);
+        }
+        else
+        {
+            const bool show_day = g_settings_get_boolean (s, SETTINGS_SHOW_DAY_S);
+            const bool show_date = g_settings_get_boolean (s, SETTINGS_SHOW_DATE_S);
+            const bool show_year = show_date && g_settings_get_boolean (s, SETTINGS_SHOW_YEAR_S);
+            const char * date_fmt = getDateFormat (show_day, show_date, show_year);
+            const char * time_fmt = getFullTimeFormatString (s);
+            fmt = joinDateAndTimeFormatStrings (date_fmt, time_fmt);
+        }
+
+        return fmt;
+    }
+
+    const gchar* T_(const gchar* in) const
+    {
+        return owner_->T_(in);
+    }
+
+    const gchar* getDateFormat (bool show_day, bool show_date, bool show_year) const
+    {
+        const char * fmt;
+
+        if (show_day && show_date && show_year)
+            /* TRANSLATORS: a strftime(3) format showing the weekday, date, and year */
+            fmt = T_("%a %b %e %Y");
+        else if (show_day && show_date)
+            fmt = T_("%a %b %e");
+        else if (show_day && show_year)
+            /* TRANSLATORS: a strftime(3) format showing the weekday and year. */
+            fmt = T_("%a %Y");
+        else if (show_day)
+            /* TRANSLATORS: a strftime(3) format showing the weekday. */
+            fmt = T_("%a");
+        else if (show_date && show_year)
+            /* TRANSLATORS: a strftime(3) format showing the date and year */
+            fmt = T_("%b %e %Y");
+        else if (show_date)
+            /* TRANSLATORS: a strftime(3) format showing the date */
+            fmt = T_("%b %e");
+        else if (show_year)
+            /* TRANSLATORS: a strftime(3) format showing the year */
+            fmt = T_("%Y");
+        else
+            fmt = nullptr;
+
+        return fmt;
+    }
+
+    const gchar * getFullTimeFormatString (GSettings * settings) const
+    {
+        const bool show_seconds = g_settings_get_boolean (settings, SETTINGS_SHOW_SECONDS_S);
+
+        bool twelvehour;
+        switch (g_settings_get_enum (settings, SETTINGS_TIME_FORMAT_S))
+        {
+            case TIME_FORMAT_MODE_LOCALE_DEFAULT:
+                twelvehour = is_locale_12h();
+                break;
+
+            case TIME_FORMAT_MODE_24_HOUR:
+                twelvehour = FALSE;
+                break;
+
+            default:
+                twelvehour = TRUE;
+                break;
+        }
+
+        return owner_->getDefaultHeaderTimeFormat (twelvehour, show_seconds);
+    }
+
+    gchar* joinDateAndTimeFormatStrings (const char * date_string, const char * time_string) const
+    {
+        gchar * str;
+
+        if (date_string && time_string)
+        {
+            /* TRANSLATORS: This is a format string passed to strftime to combine the
+             * date and the time.  The value of "%s\u2003%s" will result in a
+             * string like this in US English 12-hour time: 'Fri Jul 16 11:50 AM'.
+             * The space in between date and time is a Unicode en space
+             * (E28082 in UTF-8 hex). */
+            str =  g_strdup_printf ("%s\u2003%s", date_string, time_string);
+        }
+        else if (date_string)
+        {
+            str = g_strdup (date_string);
+        }
+        else // time_string
+        {
+            str = g_strdup (time_string);
+        }
+
+        return str;
+    }
+
+private:
+
+    DesktopFormatter * const owner_;
+    std::shared_ptr<Clock> clock_;
+    GSettings * settings_;
+};
+
+/***
+****
+***/
+
+DesktopFormatter::DesktopFormatter (const std::shared_ptr<Clock>& clock):
+    Formatter(clock),
+    p(new Impl(this, clock))
+{
+}
+
+DesktopFormatter::~DesktopFormatter() = default;
+
+/***
+****
+***/
+
+} // namespace datetime
+} // namespace indicator
+} // namespace unity