Allow multiple outputs for workspace output

`i3 4.16` allows users to list multiple outputs for a workspace and the
first available will be used. The syntax is as follows:
`workspace <workspace> output <outputs...>`

Additionally when the workspace is created, the outputs get added to the
output priority list in the order specified. This ensures that if a higher
output gets connected, the workspace will move to the higher output. This
works the same way as if the user had a workspace on an output, disconnected
the output, and then later reconnected the output.

1 files changed, 7 insertions, 0 deletions

diff --git a/sway/tree/output.c b/sway/tree/output.c
index 2704920d..3c4614a8 100644
--- a/sway/tree/output.c
+++ b/sway/tree/output.c
@@ -31,6 +31,13 @@ static void restore_workspaces(struct sway_output *output) {
                                 j--;
                         }
                 }
+
+                if (other->workspaces->length == 0) {
+                        char *next = workspace_next_name(other->wlr_output->name);
+                        struct sway_workspace *ws = workspace_create(other, next);
+                        free(next);
+                        ipc_event_workspace(NULL, ws, "init");
+                }
         }
 
         // Saved workspaces