From b7b7ffd56c91ae9622ffebfec4ea4400c96d2fce Mon Sep 17 00:00:00 2001 From: Charles Kerr Date: Fri, 26 Oct 2012 10:02:14 +0200 Subject: Select the primary device based on the spec's criteria. Add tests to confirm. --- src/indicator-power.c | 131 +++++++++++++++++++++++++++++--------------------- src/indicator-power.h | 2 + 2 files changed, 77 insertions(+), 56 deletions(-) (limited to 'src') diff --git a/src/indicator-power.c b/src/indicator-power.c index ebfc2c1..852ccd5 100644 --- a/src/indicator-power.c +++ b/src/indicator-power.c @@ -352,76 +352,95 @@ build_menu (IndicatorPower *self) gtk_widget_show_all (GTK_WIDGET (priv->menu)); } -static IndicatorPowerDevice* -get_primary_device (GSList * devices) +/* sort devices from most interesting to least interesting on this criteria: + 1. discharging items from least time remaining until most time remaining + 2. discharging items with an unknown time remaining + 3. charging items from most time left to charge to least time left to charge + 4. charging items with an unknown time remaining + 5. everything else */ +static gint +device_compare_func (gconstpointer ga, gconstpointer gb) { - IndicatorPowerDevice * primary_device = NULL; - IndicatorPowerDevice * primary_device_charging = NULL; - IndicatorPowerDevice * primary_device_discharging = NULL; - gboolean charging = FALSE; - gboolean discharging = FALSE; - guint64 min_discharging_time = G_MAXUINT64; - guint64 max_charging_time = 0; - GSList * l; - - for (l=devices; l!=NULL; l=l->next) + int ret; + int state; + const IndicatorPowerDevice * a = INDICATOR_POWER_DEVICE(ga); + const IndicatorPowerDevice * b = INDICATOR_POWER_DEVICE(gb); + const int a_state = indicator_power_device_get_state (a); + const int b_state = indicator_power_device_get_state (b); + const gdouble a_percentage = indicator_power_device_get_percentage (a); + const gdouble b_percentage = indicator_power_device_get_percentage (b); + const time_t a_time = indicator_power_device_get_time (a); + const time_t b_time = indicator_power_device_get_time (b); + + ret = 0; + + state = UP_DEVICE_STATE_DISCHARGING; + if (!ret && ((a_state == state) || (b_state == state))) { - IndicatorPowerDevice * device = INDICATOR_POWER_DEVICE(l->data); - const UpDeviceKind kind = indicator_power_device_get_kind (device); - const UpDeviceState state = indicator_power_device_get_state (device); - const gdouble percentage = indicator_power_device_get_percentage (device); - const time_t time = indicator_power_device_get_time (device); - - /* Try to fix the case when we get a empty battery bay as a real battery */ - if (state == UP_DEVICE_STATE_UNKNOWN && - percentage == 0) - continue; - - /* not battery */ - if (kind != UP_DEVICE_KIND_BATTERY) - continue; - - if (state == UP_DEVICE_STATE_DISCHARGING) + if (a_state != state) /* b is discharging */ { - discharging = TRUE; - if (time < min_discharging_time) - { - min_discharging_time = time; - primary_device_discharging = device; - } + ret = 1; } - else if (state == UP_DEVICE_STATE_CHARGING) + else if (b_state != state) /* a is discharging */ { - charging = TRUE; - if (time == 0) /* Battery broken */ - { - primary_device_charging = device; - } - if (time > max_charging_time) - { - max_charging_time = time; - primary_device_charging = device; - } + ret = -1; } - else + else /* both are discharging; least-time-left goes first */ { - primary_device = device; + if (!a_time || !b_time) /* known time always trumps unknown time */ + ret = a_time ? -1 : 1; + else if (a_time != b_time) + ret = a_time < b_time ? -1 : 1; + else + ret = a_percentage < b_percentage ? -1 : 1; } } - if (discharging) + state = UP_DEVICE_STATE_CHARGING; + if (!ret && (((a_state == state) && a_time) || ((b_state == state) && b_time))) { - primary_device = primary_device_discharging; + if (b_state != state) /* a is charging */ + { + ret = 1; + } + if (a_state != state) /* b is charging */ + { + ret = -1; + } + else /* both are discharging; most-time-to-charge goes first */ + { + if (!a_time || !b_time) /* known time always trumps unknown time */ + ret = a_time ? -1 : 1; + else if (a_time != b_time) + ret = a_time > b_time ? -1 : 1; + else + ret = a_percentage < b_percentage ? -1 : 1; + } } - else if (charging) + + if (!ret) + ret = a_state - b_state; + + return ret; +} + +IndicatorPowerDevice * +indicator_power_choose_primary_device (GSList * devices) +{ + IndicatorPowerDevice * primary = NULL; + + if (devices != NULL) { - primary_device = primary_device_charging; - } + GSList * tmp; - if (primary_device != NULL) - g_object_ref (primary_device); + tmp = g_slist_copy (devices); + tmp = g_slist_sort (tmp, device_compare_func); + primary = g_object_ref (tmp->data); + + g_slist_free (tmp); + } - return primary_device; + return primary; } static void @@ -460,7 +479,7 @@ indicator_power_set_devices (IndicatorPower * self, GSList * devices) g_slist_foreach (devices, (GFunc)g_object_ref, NULL); dispose_devices (self); priv->devices = g_slist_copy (devices); - priv->device = get_primary_device (priv->devices); + priv->device = indicator_power_choose_primary_device (devices); /* and our menus/visibility from the new device list */ if (priv->device != NULL) diff --git a/src/indicator-power.h b/src/indicator-power.h index a696b40..34d0d0e 100644 --- a/src/indicator-power.h +++ b/src/indicator-power.h @@ -55,4 +55,6 @@ GType indicator_power_get_type (void) G_GNUC_CONST; void indicator_power_set_devices (IndicatorPower * power, GSList * devices); +IndicatorPowerDevice* indicator_power_choose_primary_device (GSList * devices); + G_END_DECLS -- cgit v1.2.3