Poll for the presence of `lightdm` variable

Fixes an issue reported by Oscifer on the AUR package.

webkit2 greeter devs report that this should be fixed in version 3
of the greeter with a callback being introduced.

1 files changed, 14 insertions, 0 deletions

diff --git a/petrichor.js b/petrichor.js
index dd20bfe..bcb14d6 100644
--- a/petrichor.js
+++ b/petrichor.js
@@ -174,4 +174,18 @@ function load()
 {
 	update_time();
 	build_session_list();
+	start();
 }
+
+/* Temporary hack until webkit greeter 3.
+ * The fact this is needed frankly makes me shudder. */
+function try_load()
+{
+	if (typeof lightdm !== 'undefined') {
+		load();
+	} else {
+		setTimeout(try_load, 500);
+	}
+}
+
+window.onload = try_load;