From 8c9259947084d6e77a74d8eeb1504fe7cbd7626f Mon Sep 17 00:00:00 2001
From: Calvin Morrison <calvin@pobox.com>
Date: Mon, 18 Nov 2024 13:22:20 +0900
Subject: [PATCH] Format url links in event descriptions making them clickable

This allows to click through links in events in description fields
wherever the description field is displayed from libkcal.
This is useful since links to virtual meetings are often attached in the
description field in recent years

Signed-off-by: Calvin Morrison <calvin@pobox.com>
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
---
 libkcal/incidenceformatter.cpp | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/libkcal/incidenceformatter.cpp b/libkcal/incidenceformatter.cpp
index 785a681b..887d000a 100644
--- a/libkcal/incidenceformatter.cpp
+++ b/libkcal/incidenceformatter.cpp
@@ -575,9 +575,22 @@ static TQString displayViewFormatEvent( Calendar *calendar, Event *event,
   }
 
   if ( !event->description().isEmpty() ) {
+    TQString description = event->description();
+
+    // Regular expression to match URLs
+    TQRegExp urlRegex("https?://[^\\s]+");
+
+    int pos = 0;
+    while ((pos = urlRegex.search(description, pos)) != -1) {
+      TQString url = urlRegex.cap(0);
+      TQString link = "<a href=\"" + url + "\">" + url + "</a>";
+      description.replace(pos, url.length(), link);
+      pos += link.length();
+    }
+
     tmpStr += "<tr>";
     tmpStr += "<td><b>" + i18n( "Description:" ) + "</b></td>";
-    tmpStr += "<td>" + event->description() + "</td>";
+    tmpStr += "<td>" + description + "</td>";
     tmpStr += "</tr>";
   }