[PATCH weston 14/16] ivi-shell: rework configure_surface notification

Ucan, Emre (ADITG/SW1) eucan at de.adit-jv.com
Thu Mar 31 11:10:15 UTC 2016


The add_notification_configure_surface API accepts a simple
wl_listener instead of a ivi-shell specific notification
function. Therefore, the API is renamed to 
add_listener_configure_surface.

This change has several advantages:
1. Code cleanup
2. No dynamic memory allocation. Listeners are allocated
   by controller plugins
3. Remove API is not needed. Controller plugins can easily
   remove the listener link.

Signed-off-by: Emre Ucan <eucan at de.adit-jv.com>
---
 ivi-shell/hmi-controller.c       |   14 ++++++---
 ivi-shell/ivi-layout-export.h    |    4 +--
 ivi-shell/ivi-layout.c           |   62 ++++----------------------------------
 tests/ivi_layout-internal-test.c |    2 +-
 tests/ivi_layout-test-plugin.c   |   17 ++++++-----
 5 files changed, 27 insertions(+), 72 deletions(-)

diff --git a/ivi-shell/hmi-controller.c b/ivi-shell/hmi-controller.c
index 49aba81..53ba947 100644
--- a/ivi-shell/hmi-controller.c
+++ b/ivi-shell/hmi-controller.c
@@ -129,6 +129,7 @@ struct hmi_controller {
 
 	struct wl_listener                  surface_created;
 	struct wl_listener                  surface_removed;
+	struct wl_listener                  surface_configured;
 
 	struct wl_client                   *user_interface;
 	struct ui_setting                   ui_setting;
@@ -612,10 +613,12 @@ set_notification_remove_surface(struct wl_listener *listener, void *data)
 }
 
 static void
-set_notification_configure_surface(struct ivi_layout_surface *ivisurf,
-				   void *userdata)
+set_notification_configure_surface(struct wl_listener *listener, void *data)
 {
-	struct hmi_controller *hmi_ctrl = userdata;
+	struct hmi_controller *hmi_ctrl =
+			wl_container_of(listener, hmi_ctrl,
+					surface_configured);
+	struct ivi_layout_surface *ivisurf = (struct ivi_layout_surface*) data;
 	struct hmi_controller_layer *layer_link = NULL;
 	struct ivi_layout_layer *application_layer = NULL;
 	struct weston_surface *surface;
@@ -846,8 +849,9 @@ hmi_controller_create(struct weston_compositor *ec)
 
 	hmi_ctrl->surface_removed.notify = set_notification_remove_surface;
 	ivi_layout_interface->add_listener_remove_surface(&hmi_ctrl->surface_removed);
-	ivi_layout_interface->add_notification_configure_surface(
-		set_notification_configure_surface, hmi_ctrl);
+
+	hmi_ctrl->surface_configured.notify = set_notification_configure_surface;
+	ivi_layout_interface->add_listener_configure_surface(&hmi_ctrl->surface_configured);
 
 	hmi_ctrl->destroy_listener.notify = hmi_controller_destroy;
 	wl_signal_add(&hmi_ctrl->compositor->destroy_signal,
diff --git a/ivi-shell/ivi-layout-export.h b/ivi-shell/ivi-layout-export.h
index e0beff6..8ff5613 100644
--- a/ivi-shell/ivi-layout-export.h
+++ b/ivi-shell/ivi-layout-export.h
@@ -175,9 +175,7 @@ struct ivi_layout_interface {
 	/**
 	 * \brief register/unregister for notification when ivi_surface is configured
 	 */
-	int32_t (*add_notification_configure_surface)(
-				surface_configure_notification_func callback,
-				void *userdata);
+	int32_t (*add_listener_configure_surface)(struct wl_listener *listener);
 
 	void (*remove_notification_configure_surface)(
 				surface_configure_notification_func callback,
diff --git a/ivi-shell/ivi-layout.c b/ivi-shell/ivi-layout.c
index aa35327..5776279 100644
--- a/ivi-shell/ivi-layout.c
+++ b/ivi-shell/ivi-layout.c
@@ -931,46 +931,6 @@ clear_surface_order_list(struct ivi_layout_layer *ivilayer)
 }
 
 static void
-surface_configure_changed(struct wl_listener *listener,
-			  void *data)
-{
-	struct ivi_layout_surface *ivisurface = data;
-
-	struct listener_layout_notification *notification =
-		container_of(listener,
-			     struct listener_layout_notification,
-			     listener);
-
-	struct ivi_layout_notification_callback *configure_changed_callback =
-		notification->userdata;
-
-	((surface_configure_notification_func)configure_changed_callback->callback)
-		(ivisurface, configure_changed_callback->data);
-}
-
-static int32_t
-add_notification(struct wl_signal *signal,
-		 wl_notify_func_t callback,
-		 void *userdata)
-{
-	struct listener_layout_notification *notification = NULL;
-
-	notification = malloc(sizeof *notification);
-	if (notification == NULL) {
-		weston_log("fails to allocate memory\n");
-		free(userdata);
-		return IVI_FAILED;
-	}
-
-	notification->listener.notify = callback;
-	notification->userdata = userdata;
-
-	wl_signal_add(signal, &notification->listener);
-
-	return IVI_SUCCEEDED;
-}
-
-static void
 remove_notification(struct wl_list *listener_list, void *callback, void *userdata)
 {
 	struct wl_listener *listener = NULL;
@@ -1062,28 +1022,18 @@ ivi_layout_add_listener_remove_surface(struct wl_listener *listener)
 }
 
 static int32_t
-ivi_layout_add_notification_configure_surface(surface_configure_notification_func callback,
-					      void *userdata)
+ivi_layout_add_listener_configure_surface(struct wl_listener *listener)
 {
 	struct ivi_layout *layout = get_instance();
-	struct ivi_layout_notification_callback *configure_changed_callback = NULL;
-	if (callback == NULL) {
-		weston_log("ivi_layout_add_notification_configure_surface: invalid argument\n");
-		return IVI_FAILED;
-	}
 
-	configure_changed_callback = malloc(sizeof *configure_changed_callback);
-	if (configure_changed_callback == NULL) {
-		weston_log("fails to allocate memory\n");
+	if (listener == NULL) {
+		weston_log("ivi_layout_add_listener_configure_surface: invalid argument\n");
 		return IVI_FAILED;
 	}
 
-	configure_changed_callback->callback = callback;
-	configure_changed_callback->data = userdata;
+	wl_signal_add(&layout->surface_notification.configure_changed, listener);
 
-	return add_notification(&layout->surface_notification.configure_changed,
-				surface_configure_changed,
-				configure_changed_callback);
+	return IVI_SUCCEEDED;
 }
 
 static void
@@ -2088,7 +2038,7 @@ static struct ivi_layout_interface ivi_layout_interface = {
 	 */
 	.add_listener_create_surface	= ivi_layout_add_listener_create_surface,
 	.add_listener_remove_surface	= ivi_layout_add_listener_remove_surface,
-	.add_notification_configure_surface	= ivi_layout_add_notification_configure_surface,
+	.add_listener_configure_surface	= ivi_layout_add_listener_configure_surface,
 	.remove_notification_configure_surface	= ivi_layout_remove_notification_configure_surface,
 	.get_surfaces				= ivi_layout_get_surfaces,
 	.get_id_of_surface			= ivi_layout_get_id_of_surface,
diff --git a/tests/ivi_layout-internal-test.c b/tests/ivi_layout-internal-test.c
index 72c045f..2b0d290 100644
--- a/tests/ivi_layout-internal-test.c
+++ b/tests/ivi_layout-internal-test.c
@@ -841,7 +841,7 @@ test_surface_bad_configure_notification(struct test_context *ctx)
 {
 	const struct ivi_layout_interface *lyt = ctx->layout_interface;
 
-	iassert(lyt->add_notification_configure_surface(NULL, NULL) == IVI_FAILED);
+	iassert(lyt->add_listener_configure_surface(NULL) == IVI_FAILED);
 }
 
 static void
diff --git a/tests/ivi_layout-test-plugin.c b/tests/ivi_layout-test-plugin.c
index f01a2d5..3f7bc65 100644
--- a/tests/ivi_layout-test-plugin.c
+++ b/tests/ivi_layout-test-plugin.c
@@ -87,6 +87,7 @@ struct test_context {
 	struct wl_listener surface_property_changed;
 	struct wl_listener surface_created;
 	struct wl_listener surface_removed;
+	struct wl_listener surface_configured;
 };
 
 static struct test_context static_context;
@@ -874,11 +875,13 @@ RUNNER_TEST(surface_properties_changed_notification)
 }
 
 static void
-test_surface_configure_notification_callback(struct ivi_layout_surface *ivisurf,
-					     void *userdata)
+test_surface_configure_notification_callback(struct wl_listener *listener, void *data)
 {
-	struct test_context *ctx = userdata;
+	struct test_context *ctx =
+			container_of(listener, struct test_context,
+					surface_configured);
 	const struct ivi_layout_interface *lyt = ctx->layout_interface;
+	struct ivi_layout_surface *ivisurf = (struct ivi_layout_surface*) data;
 
 	runner_assert_or_return(lyt->get_id_of_surface(ivisurf) == IVI_TEST_SURFACE_ID(0));
 
@@ -889,7 +892,8 @@ RUNNER_TEST(surface_configure_notification_p1)
 {
 	const struct ivi_layout_interface *lyt = ctx->layout_interface;
 
-	runner_assert(IVI_SUCCEEDED == lyt->add_notification_configure_surface(test_surface_configure_notification_callback, ctx));
+	ctx->surface_configured.notify = test_surface_configure_notification_callback;
+	runner_assert(IVI_SUCCEEDED == lyt->add_listener_configure_surface(&ctx->surface_configured));
 	lyt->commit_changes();
 
 	ctx->user_flags = 0;
@@ -897,11 +901,10 @@ RUNNER_TEST(surface_configure_notification_p1)
 
 RUNNER_TEST(surface_configure_notification_p2)
 {
-	const struct ivi_layout_interface *lyt = ctx->layout_interface;
-
 	runner_assert(ctx->user_flags == 1);
 
-	lyt->remove_notification_configure_surface(test_surface_configure_notification_callback, ctx);
+	// remove surface configured listener.
+	wl_list_remove(&ctx->surface_configured.link);
 	ctx->user_flags = 0;
 }
 
-- 
1.7.9.5



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