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bpo-41611: IDLE: fix freezing on completion on macOS (GH-26400)

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(cherry picked from commit abc4bd5db9)

Co-authored-by: Tal Einat <532281+taleinat@users.noreply.github.com>
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Miss Islington (bot) 2021-05-27 07:53:53 -07:00 • committed by GitHub
parent 09696a3e21
commit 5e6219b8fa
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2 changed files with 8 additions and 1 deletions
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8
Lib/idlelib/autocomplete_w.py
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@ -247,7 +247,13 @@ class AutoCompleteWindow:
text.see(self.startindex)
x, y, cx, cy = text.bbox(self.startindex)
acw = self.autocompletewindow
acw.update()
if platform.system().startswith('Windows'):
# On Windows an update() call is needed for the completion list
# window to be created, so that we can fetch its width and
# height. However, this is not needed on other platforms (tested
# on Ubuntu and macOS) but at one point began causing freezes on
# macOS. See issues 37849 and 41611.
acw.update()
acw_width, acw_height = acw.winfo_width(), acw.winfo_height()
text_width, text_height = text.winfo_width(), text.winfo_height()
new_x = text.winfo_rootx() + min(x, max(0, text_width - acw_width))