# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1425067465 -3600
# Node ID 0f6fae987249daa9e54d6f4a2a7ca18a88147c3d
# Parent  adf8e079e7c51a575ea8e3ec11bbcd3d45802f63
Show affected recurrences when handling events with recurrence identifiers.

diff -r adf8e079e7c5 -r 0f6fae987249 htdocs/styles.css
--- a/htdocs/styles.css	Fri Feb 27 01:11:16 2015 +0100
+++ b/htdocs/styles.css	Fri Feb 27 21:04:25 2015 +0100
@@ -93,6 +93,10 @@
     font-size: inherit;
 }
 
+.replaced {
+    text-decoration: line-through;
+}
+
 /* Selection of slots/periods for new events. */
 
 input.newevent.selector {
diff -r adf8e079e7c5 -r 0f6fae987249 imip_manager.py
--- a/imip_manager.py	Fri Feb 27 01:11:16 2015 +0100
+++ b/imip_manager.py	Fri Feb 27 21:04:25 2015 +0100
@@ -1024,6 +1024,17 @@
 
         page = self.page
 
+        # Obtain any parent object if this object is a specific recurrence.
+
+        recurrenceid = format_datetime(obj.get_utc_datetime("RECURRENCE-ID"))
+
+        if recurrenceid:
+            obj = self._get_object(obj.get_value("UID"))
+            if not obj:
+                return
+
+            page.p("This event modifies a recurring event.")
+
         # Obtain the user's timezone.
 
         tzid = self.get_tzid()
@@ -1047,9 +1058,12 @@
         page.tbody()
 
         for start, end in periods:
+            start_utc = format_datetime(to_timezone(start, "UTC"))
+            css = recurrenceid and start_utc == recurrenceid and "replaced" or ""
+
             page.tr()
-            page.td(self.format_datetime(start, "long"))
-            page.td(self.format_datetime(end, "long"))
+            page.td(self.format_datetime(start, "long"), class_=css)
+            page.td(self.format_datetime(end, "long"), class_=css)
             page.tr.close()
 
         page.tbody.close()