From 95bfa88795a34b177fc8c31ad920186528d43ebc Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Thu, 10 Nov 2016 19:04:39 -0800 Subject: key: decrement key_is_grabbed release of multi-Alt Upon releasing all keys concluding a grab the counter gets reset so this isn't generally observed as being a problem. Sometimes the second Alt is released by itself, restoring the origin, and the original grabbing single Alt persists for subsequent window management operations. It's in this situation when the bug manifests. If the final Alt release occurred with a focused window/desktop differing from the origin, on the final Alt release an unexpected restore to the origin occurred. Usually this goes unnoticed, because typically the lone Alt release occurs immediately following the other one, and the second restore to origin happens to be idempotent. --- src/key.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/src/key.c b/src/key.c index 7a15ed0..47a2c8d 100644 --- a/src/key.c +++ b/src/key.c @@ -57,10 +57,13 @@ void vwm_key_released(vwm_t *vwm, Window win, XKeyReleasedEvent *keyrelease) VWM_TRACE("XK_Alt_[LR] released"); /* aborted? try restore focused_origin */ - if (key_is_grabbed > 1 && vwm->focused_origin) { - VWM_TRACE("restoring %p on %p", vwm->focused_origin, vwm->focused_origin->desktop); - vwm_desktop_focus(vwm, vwm->focused_origin->desktop); - vwm_win_focus(vwm, vwm->focused_origin); + if (key_is_grabbed > 1) { + key_is_grabbed--; /* This is important to prevent treating the final lone Alt release as another cancel/rollback. */ + if (vwm->focused_origin) { + VWM_TRACE("restoring %p on %p", vwm->focused_origin, vwm->focused_origin->desktop); + vwm_desktop_focus(vwm, vwm->focused_origin->desktop); + vwm_win_focus(vwm, vwm->focused_origin); + } } /* make the focused window the most recently used */ -- cgit v1.2.3