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tablet-v2 tool: Implement implicit grab

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Implement the tablet-v2 tablet tool's implicit grab semantics for
buttons and tip.

This avoids losing focus (to other [sub]surfaces) when a button is held,
or the tip is down.
This should help when the device is used close to a surface's border and
would otherwise have to be very precise.
This commit is contained in:
Markus Ongyerth 2018-07-23 10:08:43 +02:00
parent d5950255de
commit f64962ace8
3 changed files with 140 additions and 0 deletions
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1
rootston/seat.c
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@ -209,6 +209,7 @@ static void handle_tool_tip(struct wl_listener *listener, void *data) {
if (event->state == WLR_TABLET_TOOL_TIP_DOWN) {
wlr_tablet_v2_tablet_tool_notify_down(roots_tool->tablet_v2_tool);
wlr_tablet_tool_v2_start_implicit_grab(roots_tool->tablet_v2_tool);
} else {
wlr_tablet_v2_tablet_tool_notify_up(roots_tool->tablet_v2_tool);
}