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gtk-primary-selection: support multiple devices 

When a client was creating multiple data devices for the same seat, we were
only creating one resource. This is a protocol error.

Instead, create one offer per data device.

This commit also makes offers inert when their source is destroyed.

Fixes part of https://github.com/swaywm/wlroots/issues/1041
Supersedes https://github.com/swaywm/wlroots/pull/1113
This commit is contained in:
emersion 2018-11-21 10:59:11 +01:00
parent 040d62de00
commit b9a2e4ba4c
No known key found for this signature in database
GPG Key ID: 0FDE7BE0E88F5E48
2 changed files with 40 additions and 59 deletions
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3
include/wlr/types/wlr_primary_selection.h
View File

@ -24,8 +24,6 @@ struct wlr_primary_selection_device_manager {
void *data;
};
struct wlr_primary_selection_offer;
struct wlr_primary_selection_source {
// source metadata
struct wl_array mime_types;
@ -36,7 +34,6 @@ struct wlr_primary_selection_source {
void (*cancel)(struct wlr_primary_selection_source *source);
// source status
struct wlr_primary_selection_offer *offer;
struct wlr_seat_client *seat_client;
struct {

86
types/wlr_primary_selection.c
View File

@ -9,6 +9,8 @@
#include "gtk-primary-selection-protocol.h"
#include "util/signal.h"
#define DEVICE_MANAGER_VERSION 1
static const struct gtk_primary_selection_offer_interface offer_impl;
static struct wlr_primary_selection_offer *offer_from_resource(
@ -21,12 +23,12 @@ static struct wlr_primary_selection_offer *offer_from_resource(
static void offer_handle_receive(struct wl_client *client,
struct wl_resource *resource, const char *mime_type, int32_t fd) {
struct wlr_primary_selection_offer *offer = offer_from_resource(resource);
if (offer->source && offer == offer->source->offer) {
offer->source->send(offer->source, mime_type, fd);
} else {
if (offer == NULL) {
close(fd);
return;
}
offer->source->send(offer->source, mime_type, fd);
}
static void offer_handle_destroy(struct wl_client *client,
@ -39,31 +41,26 @@ static const struct gtk_primary_selection_offer_interface offer_impl = {
.destroy = offer_handle_destroy,
};
static void offer_resource_handle_destroy(struct wl_resource *resource) {
struct wlr_primary_selection_offer *offer = offer_from_resource(resource);
if (!offer->source) {
goto out;
static void offer_destroy(struct wlr_primary_selection_offer *offer) {
if (offer == NULL) {
return;
}
// Make resource inert
wl_resource_set_user_data(offer->resource, NULL);
wl_list_remove(&offer->source_destroy.link);
if (offer->source->offer != offer) {
goto out;
free(offer);
}
offer->source->offer = NULL;
out:
free(offer);
static void offer_handle_resource_destroy(struct wl_resource *resource) {
struct wlr_primary_selection_offer *offer = offer_from_resource(resource);
offer_destroy(offer);
}
static void offer_handle_source_destroy(struct wl_listener *listener,
void *data) {
struct wlr_primary_selection_offer *offer =
wl_container_of(listener, offer, source_destroy);
offer->source = NULL;
offer_destroy(offer);
}
@ -85,38 +82,32 @@ static void client_source_cancel(
gtk_primary_selection_source_send_cancelled(source->resource);
}
static struct wlr_primary_selection_offer *source_send_offer(
struct wlr_primary_selection_source *source,
struct wlr_seat_client *target) {
if (wl_list_empty(&target->primary_selection_devices)) {
return NULL;
}
static void source_send_offer(struct wlr_primary_selection_source *source,
struct wl_resource *device_resource) {
struct wlr_primary_selection_offer *offer =
calloc(1, sizeof(struct wlr_primary_selection_offer));
if (offer == NULL) {
return NULL;
wl_resource_post_no_memory(device_resource);
return;
}
uint32_t version = wl_resource_get_version(
wl_resource_from_link(target->primary_selection_devices.next));
offer->resource = wl_resource_create(target->client,
struct wl_client *client = wl_resource_get_client(device_resource);
uint32_t version = wl_resource_get_version(device_resource);
offer->resource = wl_resource_create(client,
&gtk_primary_selection_offer_interface, version, 0);
if (offer->resource == NULL) {
free(offer);
return NULL;
wl_resource_post_no_memory(device_resource);
return;
}
wl_resource_set_implementation(offer->resource, &offer_impl, offer,
offer_resource_handle_destroy);
offer_handle_resource_destroy);
offer->source_destroy.notify = offer_handle_source_destroy;
wl_signal_add(&source->events.destroy, &offer->source_destroy);
struct wl_resource *target_resource;
wl_resource_for_each(target_resource, &target->primary_selection_devices) {
gtk_primary_selection_device_send_data_offer(target_resource,
gtk_primary_selection_device_send_data_offer(device_resource,
offer->resource);
}
char **p;
wl_array_for_each(p, &source->mime_types) {
@ -124,9 +115,9 @@ static struct wlr_primary_selection_offer *source_send_offer(
}
offer->source = source;
source->offer = offer;
return offer;
gtk_primary_selection_device_send_selection(device_resource,
offer->resource);
}
static const struct gtk_primary_selection_source_interface source_impl;
@ -179,20 +170,13 @@ void wlr_seat_client_send_primary_selection(
return;
}
if (seat_client->seat->primary_selection_source) {
struct wlr_primary_selection_offer *offer = source_send_offer(
seat_client->seat->primary_selection_source, seat_client);
if (offer == NULL) {
return;
}
struct wlr_primary_selection_source *source =
seat_client->seat->primary_selection_source;
struct wl_resource *resource;
wl_resource_for_each(resource, &seat_client->primary_selection_devices) {
gtk_primary_selection_device_send_selection(resource, offer->resource);
}
if (source) {
source_send_offer(source, resource);
} else {
struct wl_resource *resource;
wl_resource_for_each(resource, &seat_client->primary_selection_devices) {
gtk_primary_selection_device_send_selection(resource, NULL);
}
}
@ -401,8 +385,8 @@ struct wlr_primary_selection_device_manager *
return NULL;
}
manager->global = wl_global_create(display,
&gtk_primary_selection_device_manager_interface, 1, manager,
primary_selection_device_manager_bind);
&gtk_primary_selection_device_manager_interface, DEVICE_MANAGER_VERSION,
manager, primary_selection_device_manager_bind);
if (manager->global == NULL) {
free(manager);
return NULL;