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commit 38f204db3031475aef2252e1ad11e4c87fb559f1
parent e76eee2d0a9d002fb264de538c816a6c5de4b8b9
Author: Gergely Nagy <qmk@gergo.csillger.hu>
Date:   Tue, 24 Apr 2018 16:41:38 +0200

Allow one-shot modifiers to be chained

Many a times one would want to use multiple modifiers with the same key,
preferably without having to hold anything, like `Ctrl+Shift+C` or
`Ctrl+Shift+V` to copy/paste in GNOME Terminal. To make this possible, we need
to be able to chain one-shot modifiers, so that we can have multiple of them
active at the same time.

The easiest way to accomplish this is that whenever we activate a one-shot
modifier, we apply it on top of the existing set, instead of re-setting the
state. When deactivating, either due to an interrupt, or due to a timeout, we
deactivate all oneshots anyway, so the clearing part is covered. When we turn
the one-shot modifier into a toggle, that will also clear all one-shot modifiers
first, so we covered that case too.

Fixes #2796, #1580, and #856.

Signed-off-by: Gergely Nagy <qmk@gergo.csillger.hu>

tmk_core/common/action.c | 6+++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tmk_core/common/action.c b/tmk_core/common/action.c @@ -258,10 +258,10 @@ void process_action(keyrecord_t *record, action_t action) if (event.pressed) { if (tap_count == 0) { dprint("MODS_TAP: Oneshot: 0\n"); - register_mods(mods); + register_mods(mods | get_oneshot_mods()); } else if (tap_count == 1) { dprint("MODS_TAP: Oneshot: start\n"); - set_oneshot_mods(mods); + set_oneshot_mods(mods | get_oneshot_mods()); #if defined(ONESHOT_TAP_TOGGLE) && ONESHOT_TAP_TOGGLE > 1 } else if (tap_count == ONESHOT_TAP_TOGGLE) { dprint("MODS_TAP: Toggling oneshot"); @@ -270,7 +270,7 @@ void process_action(keyrecord_t *record, action_t action) register_mods(mods); #endif } else { - register_mods(mods); + register_mods(mods | get_oneshot_mods()); } } else { if (tap_count == 0) {