src: Insert a black surface/remove it when the last remote

surface role is present

Bug-AGL: SPEC-3280

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ia47c0539ff26d1378bb9ac75e19592d7b8b2b3bf

3 files changed, 40 insertions, 5 deletions

diff --git a/src/desktop.c b/src/desktop.c
index b9e45da..b8b88db 100644
--- a/src/desktop.c
+++ b/src/desktop.c
@@ -104,6 +104,19 @@ desktop_surface_added(struct weston_desktop_surface *dsurface, void *userdata)
 	}
 }
 
+static bool
+desktop_surface_check_last_remote_surfaces(struct ivi_compositor *ivi)
+{
+	int count = 0;
+	struct ivi_surface *surf;
+
+	wl_list_for_each(surf, &ivi->surfaces, link)
+		if (surf->role == IVI_SURFACE_ROLE_REMOTE)
+			count++;
+
+	return (count == 1);
+}
+
 static void
 desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata)
 {
@@ -133,6 +146,14 @@ desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata)
 		weston_layer_entry_remove(&output->active->view->layer_link);
 		output->active = NULL;
 	}
+
+	/* check if there's a last 'remote' surface and insert a black
+	 * surface view if there's no background set for that output
+	 */
+	if (desktop_surface_check_last_remote_surfaces(output->ivi))
+		if (!output->background)
+			insert_black_surface(output);
+
 	if (weston_surface_is_mapped(wsurface)) {
 		weston_desktop_surface_unlink_view(surface->view);
 		weston_view_destroy(surface->view);
diff --git a/src/ivi-compositor.h b/src/ivi-compositor.h
index e71b6d5..b3cc3af 100644
--- a/src/ivi-compositor.h
+++ b/src/ivi-compositor.h
@@ -347,4 +347,10 @@ ivi_layout_desktop_resize(struct ivi_surface *surface,
 struct ivi_output *
 ivi_layout_get_output_from_surface(struct ivi_surface *surf);
 
+void
+insert_black_surface(struct ivi_output *output);
+
+void
+remove_black_surface(struct ivi_output *output);
+
 #endif
diff --git a/src/shell.c b/src/shell.c
index 37ceb25..e1aac8d 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -45,9 +45,6 @@
 static void
 create_black_surface_view(struct ivi_output *output);
 
-static void
-insert_black_surface(struct ivi_output *output);
-
 void
 ivi_set_desktop_surface(struct ivi_surface *surface)
 {
@@ -90,11 +87,22 @@ static void
 ivi_set_desktop_surface_remote(struct ivi_surface *surface)
 {
 	struct ivi_compositor *ivi = surface->ivi;
+	struct weston_view *view;
+	struct ivi_output *output = surface->remote.output;
+
 	assert(surface->role == IVI_SURFACE_ROLE_NONE);
 
 	/* remote type are the same as desktop just that client can tell
 	 * the compositor to start on another output */
 	surface->role = IVI_SURFACE_ROLE_REMOTE;
+
+	/* if thew black surface view is mapped on the mean we need
+	 * to remove it in order to start showing the 'remote' surface
+	 * just being added */
+	view = output->fullscreen_view.fs->view;
+	if (view->is_mapped || view->surface->is_mapped)
+		remove_black_surface(output);
+
 	wl_list_insert(&ivi->surfaces, &surface->link);
 }
 
@@ -548,7 +556,7 @@ create_black_surface_view(struct ivi_output *output)
 		      &output->fullscreen_view.fs_destroy);
 }
 
-static void
+void
 remove_black_surface(struct ivi_output *output)
 {
 	struct weston_view *view = output->fullscreen_view.fs->view;
@@ -565,7 +573,7 @@ remove_black_surface(struct ivi_output *output)
 	weston_output_damage(output->output);
 }
 
-static void
+void
 insert_black_surface(struct ivi_output *output)
 {
 	struct weston_view *view = output->fullscreen_view.fs->view;