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data-device: fix dnd handling during popup interactions

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When a popup appears during dnd operations in wlroots-based
compositors, several issues occur:
1.Drag data is lost
2.Keyboard focus changes unexpectedly
3.Other windows cannot receive drag enter events
4.The compositor may crash in some cases
5.Event propagation is interrupted

Forwarding pointer/keyboard events from popup grab to drag grab when
drag is active, preventing data loss and maintaining proper event
propagation during popup interactions.
This commit is contained in:
Lu YaNing 2024-12-18 15:57:40 +08:00
parent b97106ddcb
commit 2e53932337
2 changed files with 67 additions and 2 deletions
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6
types/seat/wlr_seat_pointer.c
View file

@ -4,6 +4,7 @@
#include <time.h>
#include <wayland-server-core.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/util/log.h>
#include "types/wlr_seat.h"
@ -416,6 +417,11 @@ void wlr_seat_pointer_start_grab(struct wlr_seat *wlr_seat,
grab->seat = wlr_seat;
wlr_seat->pointer_state.grab = grab;
// Preserve drag grab priority
if (wlr_seat->drag && grab != &wlr_seat->drag->pointer_grab) {
return;
}
wl_signal_emit_mutable(&wlr_seat->events.pointer_grab_begin, grab);
}