Set prev_workspace_name based off of focus

This moves setting `seat->prev_workspace_name` from `workspace_switch`
to `set_workspace`. `workspace_switch` is only called when using a
`workspace` command to change the workspace so any workspace change
based on criteria was not altering `seat->prev_workspace_name`. By
moving it to `set_workspace`, which is called by `seat_set_focus`, it
will change any time focus changes to a node on a different workspace

1 files changed, 12 insertions, 0 deletions

diff --git a/sway/input/seat.c b/sway/input/seat.c
index be523539..e56a6510 100644
--- a/sway/input/seat.c
+++ b/sway/input/seat.c
@@ -763,6 +763,18 @@ static void set_workspace(struct sway_seat *seat,
         if (seat->workspace == new_ws) {
                 return;
         }
+
+        if (seat->workspace) {
+                free(seat->prev_workspace_name);
+                seat->prev_workspace_name = malloc(strlen(seat->workspace->name) + 1);
+                if (!seat->prev_workspace_name) {
+                        sway_log(SWAY_ERROR, "Unable to allocate previous workspace name");
+                        seat->prev_workspace_name = NULL;
+                } else {
+                        strcpy(seat->prev_workspace_name, seat->workspace->name);
+                }
+        }
+
         ipc_event_workspace(seat->workspace, new_ws, "focus");
         seat->workspace = new_ws;
 }