Open Radar

 
Summary:
Probably having the Dock hidden is a requirement.

If you zoom a window to full size (eg a Finder window), and then run this script (attached), it demonstrates the issue.

// Drag the front Finder window so it is touching the menu bar
h = 1440; // <-- adjust to your screen height

se = Application('System Events');
// This works:
se.applicationProcesses.byName("Finder").windows[0].size = [1500, h-200];
se.applicationProcesses.byName("Finder").windows[0].size = [1500, h-47];
// This fails
se.applicationProcesses.byName("Finder").windows[0].size = [1500, h-200];
se.applicationProcesses.byName("Finder").windows[0].size = [1500, h-27];
se.applicationProcesses.byName("Finder").windows[0].size = [1500, h-47]; // <-- fails

Basically, if the window is "almost" zoomed (20 pixels up from the bottom), you cannot reduce its size by a small amount (20 pixels).  You can reduce it by a large amount, and then increase it back to the original destination.  So this is clearly a bug in the behaviour.

Steps to Reproduce:
Create a new Finder window, option-zoom it or drag it to the touch the menu bar.

Adjust the h variable in the script to match your screen height.

Run the script.

Please do NOT ask for a system profile unless you have actually performed this sequence and failed to duplicate it.

Expected Results:


Actual Results:


Version:
10.10.5

Notes:


Configuration:


Attachments:
'Window Adjustment Bug.scpt' was successfully uploaded.