Import Upstream version 43.0upstream/latest

1 files changed, 292 insertions, 0 deletions

diff --git a/src/core/gtd-clock.c b/src/core/gtd-clock.c
new file mode 100644
index 0000000..68263c6
--- /dev/null
+++ b/src/core/gtd-clock.c
@@ -0,0 +1,292 @@
+/* gtd-clock.c
+ *
+ * Copyright (C) 2017-2020 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define G_LOG_DOMAIN "GtdClock"
+
+#include "gtd-clock.h"
+#include "gtd-debug.h"
+
+#include <gio/gio.h>
+
+struct _GtdClock
+{
+  GtdObject           parent;
+
+  guint               timeout_id;
+
+  GDateTime          *current;
+
+  GDBusProxy         *logind;
+  GCancellable       *cancellable;
+};
+
+static gboolean      timeout_cb                                  (gpointer           user_data);
+
+G_DEFINE_TYPE (GtdClock, gtd_clock, GTD_TYPE_OBJECT)
+
+enum
+{
+  DAY_CHANGED,
+  HOUR_CHANGED,
+  MINUTE_CHANGED,
+  N_SIGNALS
+};
+
+static guint signals[N_SIGNALS] = { 0, };
+
+/*
+ * Auxiliary methods
+ */
+
+static void
+update_current_date (GtdClock *self)
+{
+  g_autoptr (GDateTime) now = NULL;
+  gboolean minute_changed;
+  gboolean hour_changed;
+  gboolean day_changed;
+
+  GTD_ENTRY;
+
+  now = g_date_time_new_now_local ();
+
+  day_changed = g_date_time_get_year (now) != g_date_time_get_year (self->current) ||
+                g_date_time_get_day_of_year (now) != g_date_time_get_day_of_year (self->current);
+  hour_changed = day_changed || g_date_time_get_hour (now) != g_date_time_get_hour (self->current);
+  minute_changed = hour_changed || g_date_time_get_minute (now) != g_date_time_get_minute (self->current);
+
+  if (day_changed)
+    g_signal_emit (self, signals[DAY_CHANGED], 0);
+
+  if (hour_changed)
+    g_signal_emit (self, signals[HOUR_CHANGED], 0);
+
+  if (minute_changed)
+    g_signal_emit (self, signals[MINUTE_CHANGED], 0);
+
+  GTD_TRACE_MSG ("Ticking clock");
+
+  g_clear_pointer (&self->current, g_date_time_unref);
+  self->current = g_date_time_ref (now);
+
+  GTD_EXIT;
+}
+
+static void
+schedule_update (GtdClock *self)
+{
+  g_autoptr (GDateTime) now = NULL;
+  guint seconds_between;
+
+  /* Remove the previous timeout if we came from resume */
+  if (self->timeout_id > 0)
+    {
+      g_source_remove (self->timeout_id);
+      self->timeout_id = 0;
+    }
+
+  now = g_date_time_new_now_local ();
+
+  seconds_between = 60 - g_date_time_get_second (now);
+
+  self->timeout_id = g_timeout_add_seconds (seconds_between, timeout_cb, self);
+}
+
+/*
+ * Callbacks
+ */
+
+static void
+logind_signal_received_cb (GDBusProxy  *logind,
+                           const gchar *sender,
+                           const gchar *signal,
+                           GVariant    *params,
+                           GtdClock    *self)
+{
+  GVariant *child;
+  gboolean resuming;
+
+  if (!g_str_equal (signal, "PrepareForSleep"))
+    return;
+
+  child = g_variant_get_child_value (params, 0);
+  resuming = !g_variant_get_boolean (child);
+
+  /* Only emit :update when resuming */
+  if (resuming)
+    {
+      /* Reschedule the daily timeout */
+      update_current_date (self);
+      schedule_update (self);
+    }
+
+  g_clear_pointer (&child, g_variant_unref);
+}
+
+static void
+login_proxy_acquired_cb (GObject      *source,
+                         GAsyncResult *res,
+                         gpointer      user_data)
+{
+  g_autoptr (GError) error = NULL;
+  GtdClock *self;
+
+  self = GTD_CLOCK (user_data);
+
+  gtd_object_pop_loading (GTD_OBJECT (self));
+
+  self->logind = g_dbus_proxy_new_for_bus_finish (res, &error);
+
+  if (error)
+    {
+      g_warning ("Error acquiring org.freedesktop.login1: %s", error->message);
+      return;
+    }
+
+  g_signal_connect (self->logind,
+                    "g-signal",
+                    G_CALLBACK (logind_signal_received_cb),
+                    self);
+}
+
+static gboolean
+timeout_cb (gpointer user_data)
+{
+  GtdClock *self = user_data;
+
+  self->timeout_id = 0;
+
+  update_current_date (self);
+  schedule_update (self);
+
+  return G_SOURCE_REMOVE;
+}
+
+
+/*
+ * GObject overrides
+ */
+static void
+gtd_clock_finalize (GObject *object)
+{
+  GtdClock *self = (GtdClock *)object;
+
+  g_cancellable_cancel (self->cancellable);
+
+  if (self->timeout_id > 0)
+    {
+      g_source_remove (self->timeout_id);
+      self->timeout_id = 0;
+    }
+
+  g_clear_pointer (&self->current, g_date_time_unref);
+
+  g_clear_object (&self->cancellable);
+  g_clear_object (&self->logind);
+
+  G_OBJECT_CLASS (gtd_clock_parent_class)->finalize (object);
+}
+
+static void
+gtd_clock_get_property (GObject    *object,
+                        guint       prop_id,
+                        GValue     *value,
+                        GParamSpec *pspec)
+{
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+gtd_clock_set_property (GObject      *object,
+                        guint         prop_id,
+                        const GValue *value,
+                        GParamSpec   *pspec)
+{
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+gtd_clock_class_init (GtdClockClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = gtd_clock_finalize;
+  object_class->get_property = gtd_clock_get_property;
+  object_class->set_property = gtd_clock_set_property;
+
+  /**
+   * GtdClock:day-changed:
+   *
+   * Emited when the day changes.
+   */
+  signals[DAY_CHANGED] = g_signal_new ("day-changed",
+                                       GTD_TYPE_CLOCK,
+                                       G_SIGNAL_RUN_LAST,
+                                       0, NULL, NULL, NULL,
+                                       G_TYPE_NONE,
+                                       0);
+  /**
+   * GtdClock:hour-changed:
+   *
+   * Emited when the current hour changes.
+   */
+  signals[HOUR_CHANGED] = g_signal_new ("hour-changed",
+                                        GTD_TYPE_CLOCK,
+                                        G_SIGNAL_RUN_LAST,
+                                        0, NULL, NULL, NULL,
+                                        G_TYPE_NONE,
+                                        0);
+  /**
+   * GtdClock:minute-changed:
+   *
+   * Emited when the current minute changes.
+   */
+  signals[MINUTE_CHANGED] = g_signal_new ("minute-changed",
+                                          GTD_TYPE_CLOCK,
+                                          G_SIGNAL_RUN_LAST,
+                                          0, NULL, NULL, NULL,
+                                          G_TYPE_NONE,
+                                          0);
+}
+
+static void
+gtd_clock_init (GtdClock *self)
+{
+  gtd_object_push_loading (GTD_OBJECT (self));
+
+  self->current = g_date_time_new_now_local ();
+  self->cancellable = g_cancellable_new ();
+
+  g_dbus_proxy_new_for_bus (G_BUS_TYPE_SYSTEM,
+                            G_DBUS_PROXY_FLAGS_NONE,
+                            NULL,
+                            "org.freedesktop.login1",
+                            "/org/freedesktop/login1",
+                            "org.freedesktop.login1.Manager",
+                            self->cancellable,
+                            login_proxy_acquired_cb,
+                            self);
+
+  schedule_update (self);
+}
+
+GtdClock*
+gtd_clock_new (void)
+{
+  return g_object_new (GTD_TYPE_CLOCK, NULL);
+}