[orca] Add some debugging information

[Joanmarie Diggs <joanied src gnome org>]

commit c0326753fed88f3f0bb602341981c1d677593c7d
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Mar 21 09:59:33 2018 -0400

    Add some debugging information

 src/orca/script_utilities.py |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 0ede8d9..e2ffecd 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -34,6 +34,7 @@ import locale
 import math
 import pyatspi
 import re
+import subprocess
 import time
 from gi.repository import Gdk
 from gi.repository import Gtk
@@ -120,10 +121,32 @@ class Utilities:
 
         return state.contains(pyatspi.STATE_SHOWING)
 
+    @staticmethod
+    def _getAppCommandLine(app):
+        if not app:
+            return ""
+
+        pid = app.get_process_id()
+
+        try:
+            cmdline = subprocess.getoutput("cat /proc/%s/cmdline" % pid)
+        except:
+            return ""
+
+        return cmdline.replace("\x00", " ")
+
     def canBeActiveWindow(self, window):
         if not window:
             return False
 
+        try:
+            app = window.getApplication()
+        except:
+            app = None
+
+        msg = "INFO: Looking at %s from %s %s" % (window, app, self._getAppCommandLine(app))
+        debug.println(debug.LEVEL_INFO, msg, True)
+
         window.clearCache()
         if not self._isActiveAndShowingAndNotIconified(window):
             msg = "INFO: %s is not active and showing, or is iconified" % window