1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
# Enthought library imports
from enthought.envisage.api import Plugin
from enthought.traits.api import Bool, Callable, Event, Int, Instance, Str, Trait
# Local, relative imports
from update_info import UpdateInfo
# The globally unique ID of this plugin
ID = "enthought.plugins.update_checker"
class UpdateCheckerPlugin(Plugin):
name = "Update Checker Plugin"
# The URI to an updates.xml file. Although this can be a local path,
# typically it will be a URL.
location = Str("localhost")
# Update
# Should the plugin automatically check for updates?
check_automatically = Bool(True)
# The frequency with which to check for updates
# Can be "startup", which means at application startup, or an integer number
# of seconds
# TODO: Contribute a preference for this!
check_frequency = Trait("startup", "startup", Int)
# Whether or not to display a dialog informing the user of available
# updates
display_dialog = Bool(True)
# The UpdateInfo object that contains the actual update information.
# Regardless of whether or not a dialog is displayed to the user, this
# attribute will be populated with the appropriate information.
update_info = Instance(UpdateInfo)
# This event fires every time the UpdateCheckerPlugin is invoked and
# determines that an application update is available.
update_needed = Event() #Event(ApplicationEvent)
#========================================================================
# Plugin interface
#========================================================================
def start(self):
""" Make the appropriate contributions
"""
self.application.on_trait_change("started", self._check_for_update)
def stop(self):
""" Clean up
"""
self.application.on_trait_change("started", self._check_for_update, remove=True)
#========================================================================
# Public methods
#========================================================================
def _check_for_update(self):
pass
|
