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data-device: allow multiple devices for the same seat

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This commit makes it possible for a single client to have multiple data devices
for the same seat. This fixes issues with Firefox.

This mainly removes wlr_data_source.offer. We make sure we create one data
offer per device. We now make the offer inert when the source is destroyed.

Fixes the second half of https://github.com/swaywm/wlroots/issues/1041
master
emersion 6 years ago
parent eaa852ed77
commit 5d26da9d15
No known key found for this signature in database
GPG Key ID: 0FDE7BE0E88F5E48
6 changed files with 112 additions and 141 deletions
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3
include/types/wlr_data_device.h
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@ -19,6 +19,7 @@ extern const struct wlr_surface_role drag_icon_surface_role;
struct wlr_data_offer *data_offer_create(struct wl_client *client,
struct wlr_data_source *source, uint32_t version);
void data_offer_update_action(struct wlr_data_offer *offer);
void data_offer_destroy(struct wlr_data_offer *offer);
struct wlr_client_data_source *client_data_source_create(
struct wl_client *client, uint32_t version, uint32_t id,
@ -26,7 +27,7 @@ struct wlr_client_data_source *client_data_source_create(
struct wlr_client_data_source *client_data_source_from_resource(
struct wl_resource *resource);
struct wlr_data_offer *data_source_send_offer(struct wlr_data_source *source,
struct wlr_seat_client *target);
struct wl_resource *device_resource);
void data_source_notify_finish(struct wlr_data_source *source);
bool seat_client_start_drag(struct wlr_seat_client *client,

13
include/wlr/types/wlr_data_device.h
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@ -12,14 +12,14 @@
#include <wayland-server.h>
#include <wlr/types/wlr_seat.h>
extern const struct
wlr_pointer_grab_interface wlr_data_device_pointer_drag_interface;
extern const struct wlr_pointer_grab_interface
wlr_data_device_pointer_drag_interface;
extern const struct
wlr_keyboard_grab_interface wlr_data_device_keyboard_drag_interface;
extern const struct wlr_keyboard_grab_interface
wlr_data_device_keyboard_drag_interface;
extern const struct
wlr_touch_grab_interface wlr_data_device_touch_drag_interface;
extern const struct wlr_touch_grab_interface
wlr_data_device_touch_drag_interface;
struct wlr_data_device_manager {
struct wl_global *global;
@ -72,7 +72,6 @@ struct wlr_data_source {
// source status
bool accepted;
struct wlr_data_offer *offer;
// drag'n'drop status
enum wl_data_device_manager_dnd_action current_dnd_action;

33
types/data_device/wlr_data_device.c
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@ -94,25 +94,24 @@ static void data_device_handle_resource_destroy(struct wl_resource *resource) {
void wlr_seat_client_send_selection(struct wlr_seat_client *seat_client) {
if (wl_list_empty(&seat_client->data_devices)) {
return;
struct wlr_data_source *source = seat_client->seat->selection_source;
if (source != NULL) {
source->accepted = false;
}
if (seat_client->seat->selection_source) {
struct wlr_data_offer *offer = data_source_send_offer(
seat_client->seat->selection_source, seat_client);
if (offer == NULL) {
return;
}
struct wl_resource *resource;
wl_resource_for_each(resource, &seat_client->data_devices) {
wl_data_device_send_selection(resource, offer->resource);
}
} else {
struct wl_resource *resource;
wl_resource_for_each(resource, &seat_client->data_devices) {
wl_data_device_send_selection(resource, NULL);
struct wl_resource *device_resource;
wl_resource_for_each(device_resource, &seat_client->data_devices) {
if (source != NULL) {
struct wlr_data_offer *offer =
data_source_send_offer(source, device_resource);
if (offer == NULL) {
wl_client_post_no_memory(seat_client->client);
return;
}
wl_data_device_send_selection(device_resource, offer->resource);
} else {
wl_data_device_send_selection(device_resource, NULL);
}
}
}

123
types/data_device/wlr_data_offer.c
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@ -55,15 +55,10 @@ static uint32_t data_offer_choose_action(struct wlr_data_offer *offer) {
}
void data_offer_update_action(struct wlr_data_offer *offer) {
if (!offer->source) {
return;
}
uint32_t action = data_offer_choose_action(offer);
if (offer->source->current_dnd_action == action) {
return;
}
offer->source->current_dnd_action = action;
if (offer->in_ask) {
@ -78,50 +73,80 @@ void data_offer_update_action(struct wlr_data_offer *offer) {
}
}
static void data_offer_accept(struct wl_client *client,
static void data_offer_handle_accept(struct wl_client *client,
struct wl_resource *resource, uint32_t serial, const char *mime_type) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (!offer->source || offer != offer->source->offer) {
if (offer == NULL) {
return;
}
// TODO check that client is currently focused by the input device
wlr_data_source_accept(offer->source, serial, mime_type);
}
static void data_offer_receive(struct wl_client *client,
static void data_offer_handle_receive(struct wl_client *client,
struct wl_resource *resource, const char *mime_type, int32_t fd) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (offer->source && offer == offer->source->offer) {
wlr_data_source_send(offer->source, mime_type, fd);
} else {
if (offer == NULL) {
close(fd);
return;
}
wlr_data_source_send(offer->source, mime_type, fd);
}
static void data_offer_destroy(struct wl_client *client,
static void data_offer_dnd_finish(struct wlr_data_offer *offer) {
struct wlr_data_source *source = offer->source;
if (source->actions < 0) {
return;
}
if (offer->in_ask) {
wlr_data_source_dnd_action(source, source->current_dnd_action);
}
wlr_data_source_dnd_finish(source);
}
static void data_offer_handle_destroy(struct wl_client *client,
struct wl_resource *resource) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (offer == NULL) {
goto out;
}
// If the drag destination has version < 3, wl_data_offer.finish
// won't be called, so do this here as a safety net, because
// we still want the version >= 3 drag source to be happy.
if (wl_resource_get_version(offer->resource) <
WL_DATA_OFFER_ACTION_SINCE_VERSION) {
data_offer_dnd_finish(offer);
} else if (offer->source->impl->dnd_finish) {
// wlr_data_source_cancel can free the source
wlr_data_source_cancel(offer->source);
}
out:
wl_resource_destroy(resource);
}
static void data_offer_finish(struct wl_client *client,
static void data_offer_handle_finish(struct wl_client *client,
struct wl_resource *resource) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (!offer->source || offer->source->offer != offer) {
if (offer == NULL) {
return;
}
data_source_notify_finish(offer->source);
data_offer_dnd_finish(offer);
data_offer_destroy(offer);
}
static void data_offer_set_actions(struct wl_client *client,
static void data_offer_handle_set_actions(struct wl_client *client,
struct wl_resource *resource, uint32_t actions,
uint32_t preferred_action) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (offer == NULL) {
return;
}
if (actions & ~DATA_DEVICE_ALL_ACTIONS) {
wl_resource_post_error(offer->resource,
@ -144,52 +169,36 @@ static void data_offer_set_actions(struct wl_client *client,
data_offer_update_action(offer);
}
static void data_offer_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (!offer->source) {
goto out;
void data_offer_destroy(struct wlr_data_offer *offer) {
if (offer == NULL) {
return;
}
wl_list_remove(&offer->source_destroy.link);
if (offer->source->offer != offer) {
goto out;
}
// If the drag destination has version < 3, wl_data_offer.finish
// won't be called, so do this here as a safety net, because
// we still want the version >= 3 drag source to be happy.
if (wl_resource_get_version(offer->resource) <
WL_DATA_OFFER_ACTION_SINCE_VERSION) {
data_source_notify_finish(offer->source);
offer->source->offer = NULL;
} else if (offer->source->impl->dnd_finish) {
// source->cancel can free the source
offer->source->offer = NULL;
wlr_data_source_cancel(offer->source);
} else {
offer->source->offer = NULL;
}
out:
// Make the resource inert
wl_resource_set_user_data(offer->resource, NULL);
free(offer);
}
static const struct wl_data_offer_interface data_offer_impl = {
.accept = data_offer_accept,
.receive = data_offer_receive,
.destroy = data_offer_destroy,
.finish = data_offer_finish,
.set_actions = data_offer_set_actions,
.accept = data_offer_handle_accept,
.receive = data_offer_handle_receive,
.destroy = data_offer_handle_destroy,
.finish = data_offer_handle_finish,
.set_actions = data_offer_handle_set_actions,
};
static void handle_offer_source_destroyed(struct wl_listener *listener,
static void data_offer_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_data_offer *offer = data_offer_from_resource(resource);
data_offer_destroy(offer);
}
static void data_offer_handle_source_destroy(struct wl_listener *listener,
void *data) {
struct wlr_data_offer *offer =
wl_container_of(listener, offer, source_destroy);
offer->source = NULL;
data_offer_destroy(offer);
}
struct wlr_data_offer *data_offer_create(struct wl_client *client,
@ -200,8 +209,8 @@ struct wlr_data_offer *data_offer_create(struct wl_client *client,
}
offer->source = source;
offer->resource = wl_resource_create(client,
&wl_data_offer_interface, version, 0);
offer->resource =
wl_resource_create(client, &wl_data_offer_interface, version, 0);
if (offer->resource == NULL) {
free(offer);
return NULL;
@ -209,7 +218,7 @@ struct wlr_data_offer *data_offer_create(struct wl_client *client,
wl_resource_set_implementation(offer->resource, &data_offer_impl, offer,
data_offer_handle_resource_destroy);
offer->source_destroy.notify = handle_offer_source_destroyed;
offer->source_destroy.notify = data_offer_handle_source_destroy;
wl_signal_add(&source->events.destroy, &offer->source_destroy);
return offer;

35
types/data_device/wlr_data_source.c
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@ -11,47 +11,22 @@
#include "types/wlr_data_device.h"
#include "util/signal.h"
void data_source_notify_finish(struct wlr_data_source *source) {
assert(source->offer);
if (source->actions < 0) {
return;
}
if (source->offer->in_ask) {
wlr_data_source_dnd_action(source, source->current_dnd_action);
}
source->offer = NULL;
wlr_data_source_dnd_finish(source);
}
struct wlr_data_offer *data_source_send_offer(struct wlr_data_source *source,
struct wlr_seat_client *target) {
if (wl_list_empty(&target->data_devices)) {
return NULL;
}
uint32_t version = wl_resource_get_version(
wl_resource_from_link(target->data_devices.next));
struct wlr_data_offer *offer =
data_offer_create(target->client, source, version);
struct wl_resource *device_resource) {
struct wl_client *client = wl_resource_get_client(device_resource);
uint32_t version = wl_resource_get_version(device_resource);
struct wlr_data_offer *offer = data_offer_create(client, source, version);
if (offer == NULL) {
return NULL;
}
struct wl_resource *target_resource;
wl_resource_for_each(target_resource, &target->data_devices) {
wl_data_device_send_data_offer(target_resource, offer->resource);
}
wl_data_device_send_data_offer(device_resource, offer->resource);
char **p;
wl_array_for_each(p, &source->mime_types) {
wl_data_offer_send_offer(offer->resource, *p);
}
source->offer = offer;
source->accepted = false;
return offer;
}

46
types/data_device/wlr_drag.c
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@ -47,25 +47,27 @@ static void drag_set_focus(struct wlr_drag *drag,
return;
}
if (drag->source && drag->source->offer) {
// unlink the offer from the source
wl_list_remove(&drag->source->offer->source_destroy.link);
drag->source->offer->source = NULL;
drag->source->offer = NULL;
}
struct wlr_seat_client *focus_client = wlr_seat_client_for_wl_client(
drag->seat_client->seat, wl_resource_get_client(surface->resource));
if (!focus_client) {
return;
}
struct wl_resource *offer_resource = NULL;
if (drag->source) {
if (drag->source != NULL) {
drag->source->accepted = false;
struct wlr_data_offer *offer = data_source_send_offer(drag->source,
focus_client);
if (offer != NULL) {
uint32_t serial =
wl_display_next_serial(drag->seat_client->seat->display);
struct wl_resource *device_resource;
wl_resource_for_each(device_resource, &focus_client->data_devices) {
struct wlr_data_offer *offer =
data_source_send_offer(drag->source, device_resource);
if (offer == NULL) {
wl_resource_post_no_memory(device_resource);
return;
}
data_offer_update_action(offer);
if (wl_resource_get_version(offer->resource) >=
@ -74,18 +76,10 @@ static void drag_set_focus(struct wlr_drag *drag,
drag->source->actions);
}
offer_resource = offer->resource;
}
}
if (!wl_list_empty(&focus_client->data_devices)) {
uint32_t serial =
wl_display_next_serial(drag->seat_client->seat->display);
struct wl_resource *resource;
wl_resource_for_each(resource, &focus_client->data_devices) {
wl_data_device_send_enter(resource, serial, surface->resource,
wl_data_device_send_enter(device_resource, serial,
surface->resource,
wl_fixed_from_double(sx), wl_fixed_from_double(sy),
offer_resource);
offer->resource);
}
}
@ -174,12 +168,6 @@ static uint32_t drag_handle_pointer_button(struct wlr_seat_pointer_grab *grab,
}
wlr_data_source_dnd_drop(drag->source);
if (drag->source->offer != NULL) {
drag->source->offer->in_ask =
drag->source->current_dnd_action ==
WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK;
}
struct wlr_drag_drop_event event = {
.drag = drag,
.time = time,

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