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
|
from gi.repository import Gtk
RESPONSE_BREAK = 0
RESPONSE_CANCEL = Gtk.ResponseType.CANCEL
READ = "read"
WRITE = "write"
def acquire(branch, lock_type):
if branch.get_physical_lock_status():
dialog = LockDialog(branch)
response = dialog.run()
dialog.destroy()
if response == RESPONSE_BREAK:
branch.break_lock()
else:
return False
if lock_type == READ:
branch.lock_read()
elif lock_type == WRITE:
branch.lock_write()
return True
def release(branch):
if branch.get_physical_lock_status():
dialog = LockDialog(branch)
response = dialog.run()
dialog.destroy()
if response == RESPONSE_BREAK:
branch.break_lock()
elif response == RESPONSE_CANCEL:
return False
branch.unlock()
return True
class LockDialog(Gtk.Dialog):
def __init__(self, branch):
super(LockDialog, self).__init__()
self.branch = branch
self.set_title('Lock Not Held')
self.get_content_area().add(
Gtk.Label(label=(
'This operation cannot be completed as '
'another application has locked the branch.')))
self.add_button('Break Lock', RESPONSE_BREAK)
self.add_button(Gtk.STOCK_CANCEL, RESPONSE_CANCEL)
self.get_content_area().show_all()
|