https://github.com/python/cpython/commit/b48101864c724a7eab41a6878a836f38e54e04fb
commit: b48101864c724a7eab41a6878a836f38e54e04fb
branch: main
author: Ronald Oussoren <[email protected]>
committer: terryjreedy <[email protected]>
date: 2024-02-23T02:15:39Z
summary:

gh-88516: show file proxy icon in IDLE editor windows on macOS (#112894)

The platform standard on macOS is to show a proxy icon for open
files in the titlebar of Windows. Make sure IDLE matches this
behaviour.

Don't use both the long and short names in the window title.
The behaviour of other editors (such as Text Editor) is to show
only the short name with the proxy icon.

Co-authored-by: Terry Jan Reedy <[email protected]>

files:
A Misc/NEWS.d/next/IDLE/2023-12-09-11-04-26.gh-issue-88516.SIIvfs.rst
M Lib/idlelib/editor.py

diff --git a/Lib/idlelib/editor.py b/Lib/idlelib/editor.py
index 8ee8eba64367a5..7bfa0932500d81 100644
--- a/Lib/idlelib/editor.py
+++ b/Lib/idlelib/editor.py
@@ -1044,7 +1044,9 @@ def open_recent_file(fn_closure=file_name):
     def saved_change_hook(self):
         short = self.short_title()
         long = self.long_title()
-        if short and long:
+        if short and long and not macosx.isCocoaTk():
+            # Don't use both values on macOS because
+            # that doesn't match platform conventions.
             title = short + " - " + long + _py_version
         elif short:
             title = short
@@ -1059,6 +1061,13 @@ def saved_change_hook(self):
         self.top.wm_title(title)
         self.top.wm_iconname(icon)
 
+        if macosx.isCocoaTk():
+            # Add a proxy icon to the window title
+            self.top.wm_attributes("-titlepath", long)
+
+            # Maintain the modification status for the window
+            self.top.wm_attributes("-modified", not self.get_saved())
+
     def get_saved(self):
         return self.undo.get_saved()
 
diff --git 
a/Misc/NEWS.d/next/IDLE/2023-12-09-11-04-26.gh-issue-88516.SIIvfs.rst 
b/Misc/NEWS.d/next/IDLE/2023-12-09-11-04-26.gh-issue-88516.SIIvfs.rst
new file mode 100644
index 00000000000000..b6dea5029bf353
--- /dev/null
+++ b/Misc/NEWS.d/next/IDLE/2023-12-09-11-04-26.gh-issue-88516.SIIvfs.rst
@@ -0,0 +1,2 @@
+On macOS show a proxy icon in the title bar of editor windows to match
+platform behaviour.

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