From 9fc211569913693b6dd72fdd7ec615cdf7c01ddc Mon Sep 17 00:00:00 2001
From: Chris Jones <cmsj@tenshu.net>
Date: Sun, 21 Aug 2011 00:15:14 +0100
Subject: [PATCH] Add an InactivityWatch plugin to watch terminals for silence,
 currently hardcoded to 10 seconds. Fixes LP#343616

---
 terminatorlib/plugins/activitywatch.py | 76 +++++++++++++++++++++++++-
 1 file changed, 74 insertions(+), 2 deletions(-)

diff --git a/terminatorlib/plugins/activitywatch.py b/terminatorlib/plugins/activitywatch.py
index 558b694e..8f891f8f 100755
--- a/terminatorlib/plugins/activitywatch.py
+++ b/terminatorlib/plugins/activitywatch.py
@@ -5,10 +5,11 @@
 
 import time
 import gtk
+import gobject
 
 import terminatorlib.plugin as plugin
 from terminatorlib.translation import _
-from terminatorlib.util import err
+from terminatorlib.util import err, dbg
 from terminatorlib.version import APP_NAME
 
 try:
@@ -16,7 +17,7 @@ try:
     # Every plugin you want Terminator to load *must* be listed in 'AVAILABLE'
     # This is inside this try so we only make the plugin available if pynotify
     #  is present on this computer.
-    AVAILABLE = ['ActivityWatch']
+    AVAILABLE = ['ActivityWatch', 'InactivityWatch']
 except ImportError:
     err(_('ActivityWatch plugin unavailable: please install python-notify'))
 
@@ -25,6 +26,7 @@ class ActivityWatch(plugin.MenuItem):
     capabilities = ['terminal_menu']
     watches = None
     last_notifies = None
+    timers = None
 
     def __init__(self):
         plugin.MenuItem.__init__(self)
@@ -32,6 +34,8 @@ class ActivityWatch(plugin.MenuItem):
             self.watches = {}
         if not self.last_notifies:
             self.last_notifies = {}
+        if not self.timers:
+            self.timers = {}
 
         pynotify.init(APP_NAME.capitalize())
 
@@ -77,3 +81,71 @@ class ActivityWatch(plugin.MenuItem):
             self.last_notifies[terminal] = this_time
 
         return(True)
+
+class InactivityWatch(plugin.MenuItem):
+    """Add custom commands to notify when a terminal goes inactive"""
+    capabilities = ['terminal_menu']
+    watches = None
+    last_activities = None
+    timers = None
+
+    def __init__(self):
+        plugin.MenuItem.__init__(self)
+        if not self.watches:
+            self.watches = {}
+        if not self.last_activities:
+            self.last_activities = {}
+        if not self.timers:
+            self.timers = {}
+
+        pynotify.init(APP_NAME.capitalize())
+
+    def callback(self, menuitems, menu, terminal):
+        """Add our menu items to the menu"""
+        if not self.watches.has_key(terminal):
+            item = gtk.MenuItem(_("Watch for silence"))
+            item.connect("activate", self.watch, terminal)
+        else:
+            item = gtk.MenuItem(_("Stop watching for silence"))
+            item.connect("activate", self.unwatch, terminal)
+        menuitems.append(item)
+        dbg('Menu items appended')
+
+    def watch(self, _widget, terminal):
+        """Watch a terminal"""
+        vte = terminal.get_vte()
+        self.watches[terminal] = vte.connect('contents-changed',
+                                             self.reset_timer, terminal)
+        timeout_id = gobject.timeout_add(5000, self.check_times, terminal)
+        self.timers[terminal] = timeout_id
+        dbg('timer %s added for %s' %(timeout_id, terminal))
+
+    def unwatch(self, _vte, terminal):
+        """Unwatch a terminal"""
+        vte = terminal.get_vte()
+        vte.disconnect(self.watches[terminal])
+        del(self.watches[terminal])
+        gobject.source_remove(self.timers[terminal])
+        del(self.timers[terminal])
+
+    def reset_timer(self, _vte, terminal):
+        """Reset the last-changed time for a terminal"""
+        time_now = time.mktime(time.gmtime())
+        self.last_activities[terminal] = time_now
+        dbg('reset activity time for %s' % terminal)
+
+    def check_times(self, terminal):
+        """Check if this terminal has gone silent"""
+        time_now = time.mktime(time.gmtime())
+        if not self.last_activities.has_key(terminal):
+            dbg('Terminal %s has no last activity' % terminal)
+            return True
+
+        dbg('seconds since last activity: %f (%s)' % (time_now - self.last_activities[terminal], terminal))
+        if time_now - self.last_activities[terminal] >= 10.0:
+            del(self.last_activities[terminal])
+            note = pynotify.Notification('Terminator', 'Silence in: %s' % 
+                                         terminal.get_window_title(), 'terminator')
+            note.show()
+
+        return True