Skip to content

xdg_popup can be positioned offscreen

When running maximized Chromium (any version, afaict) as a native Wayland app under Weston, the submenus of the three dot menu are positioned offscreen.

Affected Weston versions

I could reproduce this with Weston 10.0.5, 11.0.0, 12.0.2, and the latest main commit (d9a80735).

Steps to reproduce

  1. Run chromium --ozone-platform=wayland --start-maximized
  2. Click on the three dots in the top right to open the menu
  3. Hover over the menu's "History" entry

Expected behaviour

The popup for the "History" submenu is positioned to the left of the parent menu's popup.

Actual behaviour

The popup for the submenu is positioned offscreen.

In newer versions of Chromium it's difficult to notice, but the following screenshot using Chromium 113 shows the very left edge of the popup at the edge of the screen: submenu

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information