Add stable markup hooks for site themes

1 file changed, 20 insertions, 6 deletions

diff --git a/assets/cgit.js b/assets/cgit.js
index 78adfd0..2c0a828 100644
--- a/assets/cgit.js
+++ b/assets/cgit.js
@@ -54,12 +54,13 @@ function render_age(element, age) {
 }
 
 /*
- * Measures every age on the page against the clock and books the next pass.
- * There is no point coming back before the finest unit on the page could
- * change, so a page already counted in hours is left alone for minutes and
- * one counted in years for a day.
+ * Measures every age on the page against the clock and returns how many
+ * seconds may pass before one of them could read differently. There is no
+ * point coming back before the finest unit on the page could change, so a
+ * page already counted in hours is left alone for minutes and one counted in
+ * years for a day.
  */
-function refresh_ages() {
+function update_ages() {
   var bucket, elements, i, age;
   var delay = 24 * 3600;
   var now = Math.round(new Date().getTime() / 1000);
@@ -82,11 +83,19 @@ function refresh_ages() {
     }
   }
 
-  window.setTimeout(refresh_ages, delay * 1000);
+  return delay;
+}
+
+function refresh_ages() {
+  window.setTimeout(refresh_ages, update_ages() * 1000);
 }
 
 document.addEventListener("DOMContentLoaded", refresh_ages, false);
 
+// A site script that adds rows of its own can ask for one pass over them.
+window.cgit = window.cgit || {};
+window.cgit.updateAges = update_ages;
+
 })();
 
 /*
@@ -139,4 +148,9 @@ function place_bar() {
 document.addEventListener("DOMContentLoaded", place_bar, false);
 window.addEventListener("hashchange", place_bar, false);
 
+// A site script that moves the lines about can ask for the bar to be laid
+// again.
+window.cgit = window.cgit || {};
+window.cgit.highlightLines = place_bar;
+
 })();