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authorThomas Hebb <tommyhebb@gmail.com>2020-05-20 21:04:09 -0400
committerSimon Ser <contact@emersion.fr>2020-06-05 17:20:26 +0200
commitdcae6f1431dcf8deab1545cf3a251dd1a668ab21 (patch)
tree143337622fc921375e9d246078b5a1d47dc06708 /examples
parent8bf9f5bb8b8cc980ec8373eea9c9a7c8cde73e66 (diff)
Allow keyboard and pointer grabs to hook clear_focus()
This is necessary for some grabs, which currently have no way of knowing when the pointer/keyboard focus has left a surface. For example, without this, a drag-and-drop grab can erroneously drop into a window that the cursor is no longer over. This is the plumbing needed to properly fix swaywm/sway#5220. The existing fix, swaywm/sway#5222, relies on every grab's `enter()` hook allowing a `NULL` surface. This is not guaranteed by the API and, in fact, is not the case for the xdg-shell popup grab and results in a crash when the cursor leaves a surface and does not immediately enter another one while a popup is open (#2161). This fix also adds an assertion to wlr_seat_pointer_notify_enter() that ensures it's never called with a `NULL` surface. This will make Sway crash much more until it fixes its usage of the API, so we should land this at the same time as a fix in Sway (which I haven't posted yet).
Diffstat (limited to 'examples')
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