Trying to determine where a window should be made fullscreen from the size and position can be unreliable if the window exceeds the display bounds. Add additional checks with the following priority:
- If the window was positioned with a macro that explicitly passes a display ID, store and use the requested display as the explicit fullscreen target.
- Check if the window position is an exact match for any display origins, and use that display if found, as positioning a fullscreen window by moving it to the origin of the destination display is common behavior.
- Fall back to the existing center point check if the previous checks were not successful, as it is known behavior, and won't risk breaking existing clients that rely on it.
Frank Praznik
33c8998598