def show_snapshots(self, selected_app=False):
"""
Show and update the snapshots window.
Can be called while already open to update the UI.
"""
if selected_app != False:
self.selected_app = selected_app
if self.selected_app:
def snap_cmp(arg1, arg2):
return cmp(self.selected_app.snapshots[arg1][1],
self.selected_app.snapshots[arg2][1])
self.selected_app.load_snapshots()
self.lst_snapshots.clear()
# sort by most recent
sorted_keys = sorted(self.selected_app.snapshots, cmp=snap_cmp, reverse=True)
for snapshot in sorted_keys:
snap_date = datetime.datetime.fromtimestamp(
self.selected_app.snapshots[snapshot][1]).strftime(
"%Y-%m-%d %H:%M:%S")
snap_size = format_size(self.selected_app.snapshots[snapshot][2])
self.lst_snapshots.append((
snapshot,
snap_date,
snap_size,
))
else:
self.lst_snapshots.clear()
self.update_ui()
def update_ui(self, *args, **kwargs):
"""
Update the bottom panel with information about the selected
application. Disable certain buttons if their features are not
available for use on the application.
"""
model, treeiter = self.apps_treeview_sel.get_selected()
if treeiter:
# find the selected application
selected = self.lst_applications.get_value(treeiter, 0)
app = self.selected_app = self.userdata.applications[selected]
# update the title & icon
self.lbl_title.props.label = app.full_name
self.img_appicon.set_from_pixbuf(app.icon)
# check if it's running
running = self.selected_app.check_running()
txt = []
if running:
txt.append("<b>" + _("Please close %(application)s before managing it.") % {'application': self.selected_app.full_name} + "</b>")
self.item_delete.props.sensitive = False
else:
self.item_delete.props.sensitive = True
# grab the size
app.calculate_size()
if app.data_size > 0:
size = format_size(app.data_size)
size_info = _("This application is using %(size)s of space.") % {'size': "<b>" + size + "</b>"}
else:
size_info = _("This application is not storing any data.")
self.item_delete.props.sensitive = False
# find the number of snapshots
app.load_snapshots()
num_snapshots = len(app.snapshots)
if num_snapshots == 1:
size_info += "\n" + _("One snapshot is available.")
elif num_snapshots > 1:
size_info += "\n" + _("%(num)d snapshots are available.") % {'num': num_snapshots}
txt.append(size_info)
# check for errors
if app.errors:
txt = ["<b>" + _("A problem occurred. This application cannot be managed.") + "</b>"]
self.item_delete.props.sensitive = False
self.lbl_app_details.props.label = "\n\n".join(txt)
self.item_details.props.sensitive = True
# show & update snapshots
self.snapshots_ui.show_snapshots(self.selected_app)
else:
self.selected_app = None
self.lbl_app_details.props.label = ""
self.lbl_title.props.label = _("Select an Application")
self.img_appicon.set_from_stock('gtk-dialog-question', gtk.ICON_SIZE_DND);
self.item_delete.props.sensitive = False
self.item_details.props.sensitive = False
self.snapshots_ui.show_snapshots(None)
