history: start/stop time update poller when needed.

If the window is unfocused or the history list is hidden, do not keep
the poller running and draining battery.

If window is focused and object is visible, then start the poller and
update the list immediately. (avoid updating too often, 1.0s is the
current threshold).

diff --git a/dialer/history.c b/dialer/history.c
index 10ac60d..06cb1ba 100644 (file)
--- a/dialer/history.c
+++ b/dialer/history.c
@@ -30,8 +30,10 @@ typedef struct _History {
        Eet_Data_Descriptor *edd_list;
        Call_Info_List *calls;
        Elm_Genlist_Item_Class *itc;
+       Evas_Object *self;
        Evas_Object *genlist_all, *genlist_missed;
        Ecore_Poller *updater;
+       double last_update;
 } History;
 
 typedef struct _Call_Info {
@@ -55,6 +57,11 @@ static Eina_Bool _history_time_updater(void *data)
        History *ctx = data;
        Elm_Object_Item *it;
        long long update_threshold = time(NULL) - WEEK - DAY;
+       double now = ecore_loop_time_get();
+
+       if (now - ctx->last_update < 1.0)
+               return EINA_TRUE;
+       ctx->last_update = now;
 
        it = elm_genlist_first_item_get(ctx->genlist_all);
        for (; it != NULL; it = elm_genlist_item_next_get(it)) {
@@ -75,6 +82,45 @@ static Eina_Bool _history_time_updater(void *data)
        return EINA_TRUE;
 }
 
+static void _history_time_updater_stop(History *history)
+{
+       Evas *e = evas_object_evas_get(history->self);
+       Eina_Bool win_focused = evas_focus_state_get(e);
+       Eina_Bool obj_visible = evas_object_visible_get(history->self);
+
+       DBG("poller %p, win_focused=%hhu, obj_visible=%hhu",
+               history->updater, win_focused, obj_visible);
+       if (!history->updater)
+               return;
+       if (win_focused && obj_visible)
+               return;
+
+       DBG("delete poller %p", history->updater);
+       ecore_poller_del(history->updater);
+       history->updater = NULL;
+}
+
+static void _history_time_updater_start(History *history)
+{
+       Evas *e = evas_object_evas_get(history->self);
+       Eina_Bool win_focused = evas_focus_state_get(e);
+       Eina_Bool obj_visible = evas_object_visible_get(history->self);
+
+       DBG("poller %p, win_focused=%hhu, obj_visible=%hhu",
+               history->updater, win_focused, obj_visible);
+       if (history->updater)
+               return;
+       if ((!win_focused) || (!obj_visible))
+               return;
+
+       DBG("start poller");
+       /* ECORE_POLLER_CORE is 1/8th of second. */
+       history->updater = ecore_poller_add(ECORE_POLLER_CORE, 8 * 60,
+                                               _history_time_updater,
+                                               history);
+       _history_time_updater(history);
+}
+
 static Call_Info *_history_call_info_search(const History *history,
                                                const OFono_Call *call)
 {
@@ -293,7 +339,8 @@ static void _on_del(void *data, Evas *e __UNUSED__,
        History *history = data;
        Call_Info *call_info;
 
-       ecore_poller_del(history->updater);
+       if (history->updater)
+               ecore_poller_del(history->updater);
 
        if (history->calls->dirty)
                _history_call_log_save(history);
@@ -313,6 +360,38 @@ static void _on_del(void *data, Evas *e __UNUSED__,
        eet_shutdown();
 }
 
+static void _on_hide(void *data, Evas *e __UNUSED__,
+                       Evas_Object *obj __UNUSED__, void *event __UNUSED__)
+{
+       History *history = data;
+       DBG("history became hidden");
+       _history_time_updater_stop(history);
+}
+
+static void _on_show(void *data, Evas *e __UNUSED__,
+                       Evas_Object *obj __UNUSED__, void *event __UNUSED__)
+{
+       History *history = data;
+       DBG("history became visible");
+       _history_time_updater_start(history);
+}
+
+static void _on_win_focus_out(void *data, Evas *e __UNUSED__,
+                               void *event_info __UNUSED__)
+{
+       History *history = data;
+       DBG("window is unfocused");
+       _history_time_updater_stop(history);
+}
+
+static void _on_win_focus_in(void *data, Evas *e __UNUSED__,
+                               void *event_info __UNUSED__)
+{
+       History *history = data;
+       DBG("window is focused");
+       _history_time_updater_start(history);
+}
+
 static void _history_call_info_descriptor_init(Eet_Data_Descriptor **edd,
                                                Eet_Data_Descriptor **edd_list)
 {
@@ -487,6 +566,7 @@ Evas_Object *history_add(Evas_Object *parent)
 {
        int r;
        History *history;
+       Evas *e;
        const char *config_path;
        char *path, base_dir[PATH_MAX];
        Elm_Genlist_Item_Class *itc;
@@ -497,7 +577,7 @@ Evas_Object *history_add(Evas_Object *parent)
        history = calloc(1, sizeof(History));
        EINA_SAFETY_ON_NULL_RETURN_VAL(history, NULL);
 
-       obj = gui_layout_add(parent, "history_bg");
+       history->self = obj = gui_layout_add(parent, "history_bg");
        EINA_SAFETY_ON_NULL_GOTO(obj, err_layout);
 
        genlist_all = elm_genlist_add(obj);
@@ -548,15 +628,22 @@ Evas_Object *history_add(Evas_Object *parent)
        EINA_SAFETY_ON_NULL_GOTO(history->calls, err_log_read);
        evas_object_event_callback_add(obj, EVAS_CALLBACK_DEL, _on_del,
                                        history);
+       evas_object_event_callback_add(obj, EVAS_CALLBACK_HIDE, _on_hide,
+                                       history);
+       evas_object_event_callback_add(obj, EVAS_CALLBACK_SHOW, _on_show,
+                                       history);
+
+       e = evas_object_evas_get(obj);
+       evas_event_callback_add(e, EVAS_CALLBACK_CANVAS_FOCUS_OUT,
+                               _on_win_focus_out, history);
+       evas_event_callback_add(e, EVAS_CALLBACK_CANVAS_FOCUS_IN,
+                               _on_win_focus_in, history);
+
        callback_node_call_changed =
                ofono_call_changed_cb_add(_history_call_changed, history);
        callback_node_call_removed =
                ofono_call_removed_cb_add(_history_call_removed, history);
 
-       /* ECORE_POLLER_CORE is 1/8th of second. */
-       history->updater = ecore_poller_add(ECORE_POLLER_CORE, 8 * 60,
-                                               _history_time_updater,
-                                               history);
        return obj;
 
 err_log_read: