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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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6
types/seat/wlr_seat.c
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@ -274,8 +274,10 @@ struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
wl_signal_init(&seat->events.request_set_cursor);
wl_signal_init(&seat->events.selection);
wl_signal_init(&seat->events.primary_selection);
wl_signal_init(&seat->events.request_set_selection);
wl_signal_init(&seat->events.set_selection);
wl_signal_init(&seat->events.request_set_primary_selection);
wl_signal_init(&seat->events.set_primary_selection);
wl_signal_init(&seat->events.pointer_grab_begin);
wl_signal_init(&seat->events.pointer_grab_end);