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implement basic drag and drop

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ARDiDo 2021-10-03 13:33:38 -04:00 • committed by Johan Malm
parent 23f28e5082
commit 6bf3bb97f5
3 changed files with 70 additions and 1 deletions
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43
src/cursor.c
View file

@ -57,6 +57,19 @@ request_set_primary_selection_notify(struct wl_listener *listener, void *data)
event->serial);
}
static void
request_start_drag_notify(struct wl_listener *listener, void *data)
{
struct seat *seat = wl_container_of(
listener, seat, request_start_drag);
struct wlr_seat_request_start_drag_event *event = data;
if (wlr_seat_validate_pointer_grab_serial(seat->seat, event->origin, event->serial)) {
wlr_seat_start_pointer_drag(seat->seat, event->drag, event->serial);
} else {
wlr_data_source_destroy(event->drag->source);
}
}
static void
process_cursor_move(struct server *server, uint32_t time)
{
@ -190,7 +203,7 @@ process_cursor_motion(struct server *server, uint32_t time)
* the pointer over a window.
*/
wlr_seat_pointer_notify_enter(wlr_seat, surface, sx, sy);
if (!focus_changed) {
if (!focus_changed || server->seat.drag_icon) {
/*
* The enter event contains coordinates, so we only need
* to notify on motion if the focus did not change.
@ -206,6 +219,15 @@ process_cursor_motion(struct server *server, uint32_t time)
}
}
void
start_drag(struct wl_listener *listener, void *data)
{
struct seat *seat = wl_container_of(listener, seat, start_drag);
struct wlr_drag *wlr_drag = data;
seat->drag_icon = wlr_drag->icon;
wl_signal_add(&seat->drag_icon->events.destroy, &seat->destroy_drag);
}
static void
cursor_motion(struct wl_listener *listener, void *data)
{
@ -228,6 +250,18 @@ cursor_motion(struct wl_listener *listener, void *data)
process_cursor_motion(seat->server, event->time_msec);
}
void
destroy_drag(struct wl_listener *listener, void *data)
{
struct seat *seat = wl_container_of(listener, seat, destroy_drag);
if (!seat->drag_icon) {
return;
}
seat->drag_icon = NULL;
desktop_focus_topmost_mapped_view(seat->server);
}
void
cursor_motion_absolute(struct wl_listener *listener, void *data)
{
@ -442,6 +476,13 @@ cursor_init(struct seat *seat)
seat->request_set_selection.notify = request_set_selection_notify;
wl_signal_add(&seat->seat->events.request_set_selection,
&seat->request_set_selection);
seat->request_start_drag.notify = request_start_drag_notify;
wl_signal_add(&seat->seat->events.request_start_drag,
&seat->request_start_drag);
seat->start_drag.notify = start_drag;
wl_signal_add(&seat->seat->events.start_drag,
&seat->start_drag);
seat->destroy_drag.notify = destroy_drag;
seat->request_set_primary_selection.notify =
request_set_primary_selection_notify;

23
src/output.c
View file

@ -179,6 +179,26 @@ render_surface_iterator(struct output *output, struct wlr_surface *surface,
render_texture(wlr_output, output_damage, texture, box, matrix);
}
void
output_drag_icon_for_each_surface(struct output *output, struct seat *seat,
surface_iterator_func_t iterator, void *user_data)
{
if (!seat->drag_icon || !seat->drag_icon->mapped) {
return;
}
output_surface_for_each_surface(output, seat->drag_icon->surface,
seat->cursor->x, seat->cursor->y, iterator, user_data);
}
static void
render_drag_icon(struct output *output, pixman_region32_t *damage)
{
struct render_data data = {
.damage = damage,
};
output_drag_icon_for_each_surface(output, &output->server->seat, render_surface_iterator, &data);
}
#if HAVE_XWAYLAND
void
output_unmanaged_for_each_surface(struct output *output,
@ -290,6 +310,7 @@ output_for_each_surface(struct output *output, surface_iterator_func_t iterator,
output_layer_for_each_surface(output,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
iterator, user_data);
output_drag_icon_for_each_surface(output, &output->server->seat, iterator, user_data);
}
struct send_frame_done_data {
@ -707,6 +728,8 @@ output_render(struct output *output, pixman_region32_t *damage)
render_osd(output, damage, output->server);
}
render_drag_icon(output, damage);
render_layer_toplevel(output, damage,
&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
render_layer_toplevel(output, damage,