mirror of https://github.com/python/cpython.git
70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
import subprocess
|
|
import sys
|
|
from test import support
|
|
import tkinter
|
|
import unittest
|
|
|
|
_tk_available = None
|
|
|
|
def check_tk_availability():
|
|
"""Check that Tk is installed and available."""
|
|
global _tk_available
|
|
|
|
if _tk_available is not None:
|
|
return
|
|
|
|
if sys.platform == 'darwin':
|
|
# The Aqua Tk implementations on OS X can abort the process if
|
|
# being called in an environment where a window server connection
|
|
# cannot be made, for instance when invoked by a buildbot or ssh
|
|
# process not running under the same user id as the current console
|
|
# user. Instead, try to initialize Tk under a subprocess.
|
|
p = subprocess.Popen(
|
|
[sys.executable, '-c', 'import tkinter; tkinter.Button()'],
|
|
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
stderr = support.strip_python_stderr(p.communicate()[1])
|
|
if stderr or p.returncode:
|
|
raise unittest.SkipTest("tk cannot be initialized: %s" % stderr)
|
|
else:
|
|
try:
|
|
tkinter.Button()
|
|
except tkinter.TclError as msg:
|
|
# assuming tk is not available
|
|
raise unittest.SkipTest("tk not available: %s" % msg)
|
|
|
|
_tk_available = True
|
|
return
|
|
|
|
def get_tk_root():
|
|
check_tk_availability() # raise exception if tk unavailable
|
|
try:
|
|
root = tkinter._default_root
|
|
except AttributeError:
|
|
# it is possible to disable default root in Tkinter, although
|
|
# I haven't seen people doing it (but apparently someone did it
|
|
# here).
|
|
root = None
|
|
|
|
if root is None:
|
|
# create a new master only if there isn't one already
|
|
root = tkinter.Tk()
|
|
|
|
return root
|
|
|
|
def root_deiconify():
|
|
root = get_tk_root()
|
|
root.deiconify()
|
|
|
|
def root_withdraw():
|
|
root = get_tk_root()
|
|
root.withdraw()
|
|
|
|
|
|
def simulate_mouse_click(widget, x, y):
|
|
"""Generate proper events to click at the x, y position (tries to act
|
|
like an X server)."""
|
|
widget.event_generate('<Enter>', x=0, y=0)
|
|
widget.event_generate('<Motion>', x=x, y=y)
|
|
widget.event_generate('<ButtonPress-1>', x=x, y=y)
|
|
widget.event_generate('<ButtonRelease-1>', x=x, y=y)
|