Center the live preview on the active workspace

magick display requests its own window position, and Hyprland honored
it for the floating window: the preview opened off-screen on the second
monitor. Extend the runtime rule with center and the workspace active at
launch; re-registering the rule name replaces the previous one.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/fanfictioner b/fanfictioner
index 063f349..440a870 100755
--- a/fanfictioner
+++ b/fanfictioner
@@ -389,11 +389,16 @@ def open_preview(f):
     so the tiling layout neither resizes it nor reflows."""
     try:
         if os.environ.get("HYPRLAND_INSTANCE_SIGNATURE"):
+            # display asks X for its own position, which lands off-screen on another monitor:
+            # pin it centered on the active workspace. Re-registering the name replaces the rule.
+            ws = json.loads(subprocess.run(["hyprctl", "-j", "activeworkspace"], capture_output=True,
+                                           text=True).stdout or "{}").get("id", "")
             subprocess.run(["hyprctl", "eval", 'hl.window_rule({name = "fanfictioner-preview", '
-                            'match = { title = "^fanfictioner preview$" }, float = true})'], capture_output=True)
+                            'match = { title = "^fanfictioner preview$" }, float = true, center = true'
+                            + (f', workspace = "{ws}"' if ws else "") + "})"], capture_output=True)
         return subprocess.Popen(["magick", "display", "-update", "1", "-title", "fanfictioner preview", str(f)],
                                 stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-    except OSError:
+    except (OSError, ValueError):
         return None