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data-device, primary-selection: add request_set_selection

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This makes compositors able to block and/or customize set_selection requests
coming from clients. For instance, it's possible for a compositor to disable
rich selection content (by removing all MIME types except text/plain). This
commit implements the design proposed in [1].

Two new events are added to wlr_seat: request_set_selection and
request_set_primary_selection. Compositors need to listen to these events and
either destroy the source or effectively set the selection.

Fixes https://github.com/swaywm/wlroots/issues/1138

[1]: https://github.com/swaywm/wlroots/issues/1367#issuecomment-442403454
This commit is contained in:
emersion 2018-11-29 19:30:04 +01:00
parent c41d01306d
commit 4cb0697e57
15 changed files with 142 additions and 63 deletions
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25
xwayland/selection/selection.c
View file

@ -255,11 +255,11 @@ static void xwm_selection_set_owner(struct wlr_xwm_selection *selection,
}
}
static void seat_handle_selection(struct wl_listener *listener,
static void handle_seat_set_selection(struct wl_listener *listener,
void *data) {
struct wlr_seat *seat = data;
struct wlr_xwm *xwm =
wl_container_of(listener, xwm, seat_selection);
wl_container_of(listener, xwm, seat_set_selection);
struct wlr_data_source *source = seat->selection_source;
if (source != NULL && data_source_is_xwayland(source)) {
@ -269,11 +269,11 @@ static void seat_handle_selection(struct wl_listener *listener,
xwm_selection_set_owner(&xwm->clipboard_selection, source != NULL);
}
static void seat_handle_primary_selection(struct wl_listener *listener,
static void handle_seat_set_primary_selection(struct wl_listener *listener,
void *data) {
struct wlr_seat *seat = data;
struct wlr_xwm *xwm =
wl_container_of(listener, xwm, seat_primary_selection);
wl_container_of(listener, xwm, seat_set_primary_selection);
struct wlr_primary_selection_source *source =
seat->primary_selection_source;
@ -294,8 +294,8 @@ static void seat_handle_start_drag(struct wl_listener *listener, void *data) {
void xwm_set_seat(struct wlr_xwm *xwm, struct wlr_seat *seat) {
if (xwm->seat != NULL) {
wl_list_remove(&xwm->seat_selection.link);
wl_list_remove(&xwm->seat_primary_selection.link);
wl_list_remove(&xwm->seat_set_selection.link);
wl_list_remove(&xwm->seat_set_primary_selection.link);
wl_list_remove(&xwm->seat_start_drag.link);
xwm->seat = NULL;
}
@ -306,13 +306,14 @@ void xwm_set_seat(struct wlr_xwm *xwm, struct wlr_seat *seat) {
xwm->seat = seat;
wl_signal_add(&seat->events.selection, &xwm->seat_selection);
xwm->seat_selection.notify = seat_handle_selection;
wl_signal_add(&seat->events.primary_selection, &xwm->seat_primary_selection);
xwm->seat_primary_selection.notify = seat_handle_primary_selection;
wl_signal_add(&seat->events.set_selection, &xwm->seat_set_selection);
xwm->seat_set_selection.notify = handle_seat_set_selection;
wl_signal_add(&seat->events.set_primary_selection,
&xwm->seat_set_primary_selection);
xwm->seat_set_primary_selection.notify = handle_seat_set_primary_selection;
wl_signal_add(&seat->events.start_drag, &xwm->seat_start_drag);
xwm->seat_start_drag.notify = seat_handle_start_drag;
seat_handle_selection(&xwm->seat_selection, seat);
seat_handle_primary_selection(&xwm->seat_primary_selection, seat);
handle_seat_set_selection(&xwm->seat_set_selection, seat);
handle_seat_set_primary_selection(&xwm->seat_set_primary_selection, seat);
}