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interface/wlr_tablet_pad: rework destroy sequence

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The destroy callback in wlr_tablet_pad_impl has been removed. The function
`wlr_tablet_pad_finish` has been introduced to clean up the resources owned by a
wlr_tablet_pad.

`wlr_input_device_destroy` no longer destroys the wlr_tablet_pad, attempting to
destroy a wlr_tablet_pad will result in a no-op.

The field `name` has been added to the wlr_tablet_pad_impl to be able to identify
a given wlr_tablet_pad device.
This commit is contained in:
Simon Zeni 2022-03-02 15:11:25 -05:00 • committed by Kirill Primak
parent 0d2be496a8
commit a5b032cb1e
8 changed files with 51 additions and 50 deletions
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24
backend/wayland/tablet_v2.c
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@ -289,10 +289,11 @@ static void handle_tablet_pad_group_removed(
zwp_tablet_pad_group_v2_destroy(group->pad_group);
/* While I'm pretty sure we have control over this as well, it's
* outside the scope of a single function, so better be safe than
* sorry */
free(group->group.buttons);
free(group->group.strips);
free(group->group.rings);
wl_list_remove(&group->group.link);
free(group);
}
@ -396,22 +397,15 @@ static void handle_tablet_pad_leave(void *data,
static void handle_tablet_pad_removed(void *data,
struct zwp_tablet_pad_v2 *zwp_tablet_pad_v2) {
struct wlr_wl_input_device *dev = data;
struct wlr_tablet_pad *tablet_pad = dev->wlr_input_device.tablet_pad;
/* This doesn't free anything, but emits the destroy signal */
wlr_input_device_destroy(&dev->wlr_input_device);
/* This is a bit ugly, but we need to remove it from our list */
wl_list_remove(&dev->link);
struct wlr_wl_tablet_pad_group *group, *it;
wl_list_for_each_safe(group, it, &tablet_pad->groups, group.link) {
handle_tablet_pad_group_removed(group);
}
/* This frees */
wlr_tablet_pad_destroy(tablet_pad);
zwp_tablet_pad_v2_destroy(dev->resource);
free(dev);
destroy_wl_input_device(dev);
}
static const struct zwp_tablet_pad_v2_listener tablet_pad_listener = {
@ -425,7 +419,9 @@ static const struct zwp_tablet_pad_v2_listener tablet_pad_listener = {
.removed = handle_tablet_pad_removed,
};
const struct wlr_tablet_pad_impl tablet_pad_impl = {0};
const struct wlr_tablet_pad_impl tablet_pad_impl = {
.name = "wl-tablet-pad",
};
static void handle_pad_added(void *data,
struct zwp_tablet_seat_v2 *zwp_tablet_seat_v2,
@ -454,7 +450,7 @@ static void handle_pad_added(void *data,
zwp_tablet_pad_v2_destroy(id);
return;
}
wlr_tablet_pad_init(wlr_dev->tablet_pad, &tablet_pad_impl, wlr_dev->name);
wlr_tablet_pad_init(wlr_dev->tablet_pad, &tablet_pad_impl, "wlr_tablet_v2");
zwp_tablet_pad_v2_add_listener(id, &tablet_pad_listener, dev);
}