From 556bf3ac31be8714d9b9cb92f000a161f5132d8c Mon Sep 17 00:00:00 2001 From: emersion Date: Tue, 5 Feb 2019 10:49:28 +0100 Subject: [PATCH] data-device: destroy previous source when starting drag This supersedes f24e17259e49aef55b7ada54793a4cdb49ae94a1 and 04c9ca4198a729a95a6368bbbf0438d1ba3465fa. These commits were manually removing wlr_data_source destroy handlers when starting a new drag. This is error-prone. Instead, this commit destroys the previous source whenever we start a new drag. --- types/data_device/wlr_drag.c | 8 ++++---- xwayland/selection/dnd.c | 5 ----- 2 files changed, 4 insertions(+), 9 deletions(-) diff --git a/types/data_device/wlr_drag.c b/types/data_device/wlr_drag.c index 2b676fdc..558e9f22 100644 --- a/types/data_device/wlr_drag.c +++ b/types/data_device/wlr_drag.c @@ -487,12 +487,12 @@ bool seat_client_start_drag(struct wlr_seat_client *client, drag_set_focus(drag, point->surface, point->sx, point->sy); } - seat->drag = drag; // TODO: unset this thing somewhere + seat->drag = drag; seat->drag_serial = serial; - if (seat->drag_source != NULL) { - wl_list_remove(&seat->drag_source_destroy.link); - } + // We need to destroy the previous source, because listeners only expect one + // active drag source at a time. + wlr_data_source_destroy(seat->drag_source); seat->drag_source = source; if (source != NULL) { seat->drag_source_destroy.notify = seat_handle_drag_source_destroy; diff --git a/xwayland/selection/dnd.c b/xwayland/selection/dnd.c index fc090936..ec5f16c7 100644 --- a/xwayland/selection/dnd.c +++ b/xwayland/selection/dnd.c @@ -315,8 +315,6 @@ static void seat_handle_drag_source_destroy(struct wl_listener *listener, wl_container_of(listener, xwm, seat_drag_source_destroy); wl_list_remove(&xwm->seat_drag_source_destroy.link); - xwm->seat_drag_source_destroy.link.prev = NULL; - xwm->seat_drag_source_destroy.link.next = NULL; xwm->drag_focus = NULL; } @@ -334,9 +332,6 @@ void xwm_seat_handle_start_drag(struct wlr_xwm *xwm, struct wlr_drag *drag) { wl_signal_add(&drag->events.destroy, &xwm->seat_drag_destroy); xwm->seat_drag_destroy.notify = seat_handle_drag_destroy; - if (xwm->seat_drag_source_destroy.link.prev != NULL) { - wl_list_remove(&xwm->seat_drag_source_destroy.link); - } wl_signal_add(&drag->source->events.destroy, &xwm->seat_drag_source_destroy); xwm->seat_drag_source_destroy.notify = seat_handle_drag_source_destroy;