snapshots: Add screenshot support

Show a screenshot in the 'new snapshot' wizard. If we successfully create
that snapshot, save the screenshot in

~/.cache/virt-manager/$connuri/$vmuuid/snap-screenshot-$snapname.$ext

And show it in the snapshot details overview. We don't do any reaping
on snapshot delete, vm delete, etc, but that could be added later.

1 files changed, 7 insertions, 0 deletions

diff --git a/virtManager/domain.py b/virtManager/domain.py
index 043d0875..b7c286eb 100644
--- a/virtManager/domain.py
+++ b/virtManager/domain.py
@@ -23,6 +23,7 @@ from gi.repository import GObject
 # pylint: enable=E0611
 
 import logging
+import os
 import time
 import threading
 
@@ -1660,6 +1661,12 @@ class vmmDomain(vmmLibvirtObject):
         return self.config.set_pervm(self.uuid, "/console-password",
                                      (username, keyid))
 
+    def get_cache_dir(self):
+        ret = os.path.join(self.conn.get_cache_dir(), self.get_uuid())
+        if not os.path.exists(ret):
+            os.mkdir(ret, 0755)
+        return ret
+
 
     ###################
     # Polling helpers #