From b292b09328137a8e8822ea6bc370ebf7d83a64ae Mon Sep 17 00:00:00 2001
From: Emmanuel Lepage Vallee <elv1313@gmail.com>
Date: Sat, 1 Nov 2014 18:19:12 -0400
Subject: [PATCH] Add 'urgent' property to tags

---
 lib/awful/tag.lua.in | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 mode change 100644 => 100755 lib/awful/tag.lua.in

diff --git a/lib/awful/tag.lua.in b/lib/awful/tag.lua.in
old mode 100644
new mode 100755
index cfb3b105..c1f7607b
--- a/lib/awful/tag.lua.in
+++ b/lib/awful/tag.lua.in
@@ -630,7 +630,40 @@ capi.client.connect_signal("manage", function(c)
     c:connect_signal("property::screen", tag.withcurrent)
 end)
 
+-- Keep track of the number of urgent client
+local function update_urgent(c,t)
+    local modif = c.urgent == true and 1 or -1
+    local count = tag.getproperty(t,"urgent_count")  or 0
+    count = (count + modif) >= 0 and (count + modif) or 0
+    tag.setproperty(t,"urgent"      , count > 0)
+    tag.setproperty(t,"urgent_count", count    )
+end
+
+-- Update the urgent counter when a client is tagged
+local function client_tagged(c,t)
+    if c.urgent then
+        update_urgent(c,t)
+    end
+end
+
+-- Update the urgent counter when a client is untagged
+local function client_untagged(c,t)
+    if c.urgent then
+        update_urgent(c,t)
+    end
+end
+
+-- Count the urgent clients
+local function urgent_callback(c)
+    for k,t in ipairs(c:tags()) do
+        update_urgent(c,t)
+    end
+end
+
+capi.client.connect_signal("property::urgent", urgent_callback)
 capi.client.connect_signal("manage", tag.withcurrent)
+capi.client.add_signal("untagged", client_untagged)
+capi.client.add_signal("tagged", client_tagged)
 capi.tag.connect_signal("request::select", tag.viewonly)
 
 capi.tag.add_signal("property::hide")
@@ -642,6 +675,8 @@ capi.tag.add_signal("property::nmaster")
 capi.tag.add_signal("property::windowfact")
 capi.tag.add_signal("property::screen")
 capi.tag.add_signal("property::index")
+capi.tag.add_signal("property::urgent")
+capi.tag.add_signal("property::urgent_count")
 
 capi.screen.add_signal("tag::history::update")
 for s = 1, capi.screen.count() do