output: evacuate sticky containers only if new output has a workspace

Sticky floating containers on an otherwise empty workspace can only be
evacuated if the new output has an active workspace. The noop output may
not have one and in that case we have to move the whole workspace to the
new output.

1 files changed, 13 insertions, 0 deletions

diff --git a/sway/tree/workspace.c b/sway/tree/workspace.c
index 3bcba8e5..476c2568 100644
--- a/sway/tree/workspace.c
+++ b/sway/tree/workspace.c
@@ -817,3 +817,16 @@ size_t workspace_num_tiling_views(struct sway_workspace *ws) {
         workspace_for_each_container(ws, count_tiling_views, &count);
         return count;
 }
+
+static void count_sticky_containers(struct sway_container *con, void *data) {
+        if (container_is_floating(con) && con->is_sticky) {
+                size_t *count = data;
+                *count += 1;
+        }
+}
+
+size_t workspace_num_sticky_containers(struct sway_workspace *ws) {
+        size_t count = 0;
+        workspace_for_each_container(ws, count_sticky_containers, &count);
+        return count;
+}