# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1237758413 -3600
# Node ID 242a07db6caf46c83560595f4ed24f3342d4860b
# Parent  059abf39a5c408a97eaa5c07683760bc2036fa93
Added iCalendar output and a list of all shown events to support it.

diff -r 059abf39a5c4 -r 242a07db6caf macros/EventAggregator.py
--- a/macros/EventAggregator.py	Sun Mar 22 22:17:16 2009 +0100
+++ b/macros/EventAggregator.py	Sun Mar 22 22:46:53 2009 +0100
@@ -181,6 +181,7 @@
 
       mode=calendar     shows a calendar view of events
       mode=list         shows a list of events by month
+      mode=ics          provides iCalendar data for the events
 
       names=daily       shows the name of an event on every day of that event
       names=weekly      shows the name of an event once per week
@@ -225,6 +226,7 @@
 
     events = []
     shown_events = {}
+    all_shown_events = []
 
     earliest = None
     latest = None
@@ -277,11 +279,14 @@
                         if not shown_events.has_key(event_month):
                             shown_events[event_month] = []
                         shown_events[event_month].append(event)
+                        all_shown_events.append(event)
 
     # Make a calendar.
 
     output = []
 
+    # Output top-level information.
+
     if mode == "list":
         output.append(fmt.bullet_list(on=1, attr={"class" : "event-listings"}))
 
@@ -572,7 +577,48 @@
 
             output.append(fmt.bullet_list(on=0))
 
-    if mode == "list":
+    # Output top-level information.
+
+    # Output iCalendar data...
+
+    if mode == "ics":
+
+        # Output the calendar details as preformatted text.
+
+        output.append(fmt.preformatted(on=1))
+        output.append(fmt.text("BEGIN:VCALENDAR"))
+        output.append(fmt.linebreak())
+        output.append(fmt.text("VERSION:1.0"))
+        output.append(fmt.linebreak())
+
+        for event_page, event_details in all_shown_events:
+
+            # Get a pretty version of the page name.
+
+            pretty_pagename = getPrettyPageName(event_page)
+
+            # Output the event details.
+
+            output.append(fmt.text("BEGIN:VEVENT"))
+            output.append(fmt.linebreak())
+            output.append(fmt.text("SUMMARY:%s" % pretty_pagename))
+            output.append(fmt.linebreak())
+            output.append(fmt.text("URL:%s" % request.getQualifiedURL(event_page.url(request))))
+            output.append(fmt.linebreak())
+            output.append(fmt.text("DTSTART:%04d%02d%02d" % event_details["start"]))
+            output.append(fmt.linebreak())
+            output.append(fmt.text("DTEND:%04d%02d%02d" % event_details["end"]))
+            output.append(fmt.linebreak())
+            output.append(fmt.text("END:VEVENT"))
+            output.append(fmt.linebreak())
+
+        output.append(fmt.text("END:VCALENDAR"))
+        output.append(fmt.linebreak())
+        output.append(fmt.preformatted(on=0))
+
+    # End of list view output.
+
+    elif mode == "list":
         output.append(fmt.bullet_list(on=0))
 
     return ''.join(output)