From: Junghoon Park <jh9216.park@samsung.com>
Date: Wed, 19 Jul 2017 06:09:56 +0000 (+0900)
Subject: Implement periodic update
X-Git-Tag: accepted/tizen/3.0/common/20170808.135513~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=092c5946d68397d0e6d7f76ebde387629222c771;p=platform%2Fcore%2Fappfw%2Fappcore-widget.git

Implement periodic update

- update-callabck should be invoked periodically when the value of
  'update-period' is bigger then 0
- Paused widget's update-callback should be deferred until it is resumed
- Require
  https://review.tizen.org/gerrit/#/c/139466/

Change-Id: Id30e4de0576f3cb8b35743fff0ac37989356df6d
Signed-off-by: Junghoon Park <jh9216.park@samsung.com>
---

diff --git a/src/widget-private.h b/src/widget-private.h
index 847c099..1c7f519 100644
--- a/src/widget-private.h
+++ b/src/widget-private.h
@@ -43,6 +43,9 @@ struct _widget_context {
 	Evas_Object *win;
 	int win_id;
 	char *content;
+	double period;
+	guint periodic_timer;
+	bool pending_update;
 	widget_instance_lifecycle_callback_s ops;
 };
 
diff --git a/src/widget_app.c b/src/widget_app.c
index db42d0b..5cc0e22 100755
--- a/src/widget_app.c
+++ b/src/widget_app.c
@@ -94,6 +94,7 @@ static bool fg_signal;
 
 static void _widget_core_set_appcore_event_cb(void);
 static void _widget_core_unset_appcore_event_cb(void);
+static int __instance_update(widget_class_h handle, const char *id, int force, const char *content);
 
 static void __free_handler_cb(gpointer data)
 {
@@ -282,6 +283,26 @@ static int __send_update_status(const char *class_id, const char *instance_id,
 	return 0;
 }
 
+static gboolean __timeout_cb(gpointer user_data)
+{
+	widget_context_s *wc = user_data;
+
+	if (wc->state == WC_RUNNING) {
+		_D("Periodic update!");
+		__instance_update(wc->provider, wc->id, 0, NULL);
+	} else if (wc->state == WC_PAUSED ||
+			wc->state == WC_READY) {
+		wc->pending_update = true;
+		if (wc->periodic_timer) {
+			_D("Remove timer!");
+			g_source_remove(wc->periodic_timer);
+			wc->periodic_timer = 0;
+		}
+	}
+
+	return G_SOURCE_CONTINUE;
+}
+
 static int __instance_resume(widget_class_h handle, const char *id, int send_update)
 {
 	widget_context_s *wc = __find_context_by_id(id);
@@ -302,6 +323,18 @@ static int __instance_resume(widget_class_h handle, const char *id, int send_upd
 		return 0; /* LCOV_EXCL_LINE */
 	}
 
+	if (wc->pending_update) {
+		_D("pending update!");
+		wc->pending_update = false;
+		__instance_update(wc->provider, wc->id, 0, NULL);
+
+		if (wc->period > 0) {
+			_D("Restart timer!");
+			wc->periodic_timer = g_timeout_add_seconds(wc->period,
+					__timeout_cb, wc);
+		}
+	}
+
 	if (handle->ops.resume)
 		handle->ops.resume(wc, handle->user_data);
 
@@ -448,7 +481,8 @@ static int __instance_update(widget_class_h handle, const char *id, int force, c
 }
 /* LCOV_EXCL_STOP */
 
-static int __instance_create(widget_class_h handle, const char *id, const char *content, int w, int h)
+static int __instance_create(widget_class_h handle, const char *id,
+		const char *content, int w, int h, double period)
 {
 	widget_context_s *wc = NULL;
 	int ret = 0;
@@ -500,6 +534,12 @@ static int __instance_create(widget_class_h handle, const char *id, const char *
 	if (content_info)
 		bundle_free(content_info);
 
+	if (period > 0) {
+		wc->period = period;
+		wc->periodic_timer = g_timeout_add_seconds(period,
+				__timeout_cb, wc);
+	}
+
 	return ret;
 }
 
@@ -547,6 +587,9 @@ static int __instance_destroy(widget_class_h handle, const char *id,
 	if (wc->content)
 		free(wc->content);
 
+	if (wc->periodic_timer)
+		g_source_remove(wc->periodic_timer);
+
 	free(wc);
 
 	if (_widget_app_get_contexts() == NULL && !exit_called) /* all instance destroyed */
@@ -603,7 +646,11 @@ static void __control(bundle *b)
 	char *remain = NULL;
 	int force;
 	char *force_str = NULL;
+	double *period = NULL;
+	double update_period = 0;
 	widget_class_h handle = NULL;
+	size_t size;
+	int ret;
 
 	bundle_get_str(b, WIDGET_K_CLASS, &class_id);
 	/* for previous version compatibility, use appid for default class id */
@@ -640,8 +687,12 @@ static void __control(bundle *b)
 	if (h_str)
 		h = (int)g_ascii_strtoll(h_str, &remain, 10);
 
+	ret = bundle_get_byte(b, WIDGET_K_PERIOD, (void **)&period, &size);
+	if (ret == BUNDLE_ERROR_NONE)
+		update_period = *period;
+
 	if (strcmp(operation, "create") == 0) {
-		__instance_create(handle, id, content, w, h);
+		__instance_create(handle, id, content, w, h, update_period);
 	} else if (strcmp(operation, "resize") == 0) {
 		__resize_window(id, w, h);
 		__instance_resize(handle, id, w, h);