699 lines
20 KiB
C
699 lines
20 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <wlr/types/wlr_data_control_v1.h>
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#include <wlr/types/wlr_data_device.h>
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#include <wlr/types/wlr_primary_selection.h>
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#include <wlr/util/log.h>
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#include "util/signal.h"
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#include "wlr-data-control-unstable-v1-protocol.h"
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#define DATA_CONTROL_MANAGER_VERSION 2
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struct data_control_source {
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struct wl_resource *resource;
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struct wl_array mime_types;
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bool finalized;
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// Only one of these is non-NULL.
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struct wlr_data_source *active_source;
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struct wlr_primary_selection_source *active_primary_source;
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};
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static const struct zwlr_data_control_source_v1_interface source_impl;
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static struct data_control_source *source_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwlr_data_control_source_v1_interface, &source_impl));
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return wl_resource_get_user_data(resource);
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}
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static void source_handle_offer(struct wl_client *client,
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struct wl_resource *resource, const char *mime_type) {
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struct data_control_source *source = source_from_resource(resource);
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if (source == NULL) {
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return;
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}
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if (source->finalized) {
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wl_resource_post_error(resource,
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ZWLR_DATA_CONTROL_SOURCE_V1_ERROR_INVALID_OFFER,
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"cannot mutate offer after set_selection or "
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"set_primary_selection");
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return;
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}
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const char **mime_type_ptr;
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wl_array_for_each(mime_type_ptr, &source->mime_types) {
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if (strcmp(*mime_type_ptr, mime_type) == 0) {
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wlr_log(WLR_DEBUG, "Ignoring duplicate MIME type offer %s",
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mime_type);
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return;
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}
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}
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char *dup_mime_type = strdup(mime_type);
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if (dup_mime_type == NULL) {
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wl_resource_post_no_memory(resource);
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return;
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}
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char **p = wl_array_add(&source->mime_types, sizeof(char *));
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if (p == NULL) {
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free(dup_mime_type);
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wl_resource_post_no_memory(resource);
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return;
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}
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*p = dup_mime_type;
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}
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static void source_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static const struct zwlr_data_control_source_v1_interface source_impl = {
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.offer = source_handle_offer,
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.destroy = source_handle_destroy,
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};
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static void data_control_source_destroy(struct data_control_source *source) {
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if (source == NULL) {
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return;
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}
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char **p;
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wl_array_for_each(p, &source->mime_types) {
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free(*p);
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}
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wl_array_release(&source->mime_types);
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// Prevent destructors below from calling this recursively.
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wl_resource_set_user_data(source->resource, NULL);
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if (source->active_source != NULL) {
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wlr_data_source_destroy(source->active_source);
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} else if (source->active_primary_source != NULL) {
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wlr_primary_selection_source_destroy(
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source->active_primary_source);
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}
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free(source);
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}
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static void source_handle_resource_destroy(struct wl_resource *resource) {
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struct data_control_source *source = source_from_resource(resource);
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data_control_source_destroy(source);
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}
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struct client_data_source {
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struct wlr_data_source source;
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struct wl_resource *resource;
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};
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static const struct wlr_data_source_impl client_source_impl;
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static struct client_data_source *
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client_data_source_from_source(struct wlr_data_source *wlr_source) {
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assert(wlr_source->impl == &client_source_impl);
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return (struct client_data_source *)wlr_source;
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}
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static void client_source_send(struct wlr_data_source *wlr_source,
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const char *mime_type, int fd) {
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struct client_data_source *source =
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client_data_source_from_source(wlr_source);
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zwlr_data_control_source_v1_send_send(source->resource, mime_type, fd);
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close(fd);
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}
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static void client_source_destroy(struct wlr_data_source *wlr_source) {
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struct client_data_source *client_source =
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client_data_source_from_source(wlr_source);
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struct data_control_source *source =
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source_from_resource(client_source->resource);
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free(client_source);
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if (source == NULL) {
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return;
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}
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source->active_source = NULL;
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zwlr_data_control_source_v1_send_cancelled(source->resource);
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data_control_source_destroy(source);
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}
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static const struct wlr_data_source_impl client_source_impl = {
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.send = client_source_send,
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.destroy = client_source_destroy,
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};
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struct client_primary_selection_source {
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struct wlr_primary_selection_source source;
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struct wl_resource *resource;
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};
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static const struct wlr_primary_selection_source_impl
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client_primary_selection_source_impl;
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static struct client_primary_selection_source *
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client_primary_selection_source_from_source(
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struct wlr_primary_selection_source *wlr_source) {
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assert(wlr_source->impl == &client_primary_selection_source_impl);
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return (struct client_primary_selection_source *)wlr_source;
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}
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static void client_primary_selection_source_send(
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struct wlr_primary_selection_source *wlr_source,
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const char *mime_type, int fd) {
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struct client_primary_selection_source *source =
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client_primary_selection_source_from_source(wlr_source);
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zwlr_data_control_source_v1_send_send(source->resource, mime_type, fd);
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close(fd);
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}
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static void client_primary_selection_source_destroy(
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struct wlr_primary_selection_source *wlr_source) {
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struct client_primary_selection_source *client_source =
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client_primary_selection_source_from_source(wlr_source);
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struct data_control_source *source =
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source_from_resource(client_source->resource);
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free(client_source);
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if (source == NULL) {
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return;
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}
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source->active_primary_source = NULL;
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zwlr_data_control_source_v1_send_cancelled(source->resource);
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data_control_source_destroy(source);
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}
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static const struct wlr_primary_selection_source_impl
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client_primary_selection_source_impl = {
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.send = client_primary_selection_source_send,
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.destroy = client_primary_selection_source_destroy,
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};
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struct data_offer {
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struct wl_resource *resource;
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struct wlr_data_control_device_v1 *device;
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bool is_primary;
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};
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static void data_offer_destroy(struct data_offer *offer) {
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if (offer == NULL) {
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return;
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}
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struct wlr_data_control_device_v1 *device = offer->device;
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if (device != NULL) {
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if (offer->is_primary) {
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device->primary_selection_offer_resource = NULL;
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} else {
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device->selection_offer_resource = NULL;
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}
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}
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wl_resource_set_user_data(offer->resource, NULL);
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free(offer);
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}
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static const struct zwlr_data_control_offer_v1_interface offer_impl;
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static struct data_offer *data_offer_from_offer_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwlr_data_control_offer_v1_interface, &offer_impl));
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return wl_resource_get_user_data(resource);
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}
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static void offer_handle_receive(struct wl_client *client,
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struct wl_resource *resource, const char *mime_type, int fd) {
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struct data_offer *offer = data_offer_from_offer_resource(resource);
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if (offer == NULL) {
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close(fd);
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return;
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}
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struct wlr_data_control_device_v1 *device = offer->device;
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if (device == NULL) {
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close(fd);
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return;
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}
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if (offer->is_primary) {
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if (device->seat->primary_selection_source == NULL) {
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close(fd);
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return;
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}
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wlr_primary_selection_source_send(
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device->seat->primary_selection_source,
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mime_type, fd);
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} else {
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if (device->seat->selection_source == NULL) {
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close(fd);
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return;
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}
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wlr_data_source_send(device->seat->selection_source, mime_type, fd);
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}
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}
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static void offer_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static const struct zwlr_data_control_offer_v1_interface offer_impl = {
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.receive = offer_handle_receive,
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.destroy = offer_handle_destroy,
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};
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static void offer_handle_resource_destroy(struct wl_resource *resource) {
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struct data_offer *offer = data_offer_from_offer_resource(resource);
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data_offer_destroy(offer);
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}
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static struct wl_resource *create_offer(struct wlr_data_control_device_v1 *device,
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struct wl_array *mime_types, bool is_primary) {
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struct wl_client *client = wl_resource_get_client(device->resource);
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struct data_offer *offer = calloc(1, sizeof(struct data_offer));
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if (offer == NULL) {
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wl_client_post_no_memory(client);
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return NULL;
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}
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offer->device = device;
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offer->is_primary = is_primary;
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uint32_t version = wl_resource_get_version(device->resource);
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struct wl_resource *resource = wl_resource_create(client,
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&zwlr_data_control_offer_v1_interface, version, 0);
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if (resource == NULL) {
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free(offer);
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return NULL;
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}
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offer->resource = resource;
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wl_resource_set_implementation(resource, &offer_impl, offer,
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offer_handle_resource_destroy);
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zwlr_data_control_device_v1_send_data_offer(device->resource, resource);
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char **p;
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wl_array_for_each(p, mime_types) {
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zwlr_data_control_offer_v1_send_offer(resource, *p);
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}
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return resource;
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}
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static const struct zwlr_data_control_device_v1_interface control_impl;
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static struct wlr_data_control_device_v1 *control_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwlr_data_control_device_v1_interface, &control_impl));
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return wl_resource_get_user_data(resource);
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}
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static void control_handle_set_selection(struct wl_client *client,
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struct wl_resource *control_resource,
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struct wl_resource *source_resource) {
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struct wlr_data_control_device_v1 *device =
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control_from_resource(control_resource);
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if (device == NULL) {
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return;
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}
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struct data_control_source *source = NULL;
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if (source_resource != NULL) {
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source = source_from_resource(source_resource);
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}
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if (source == NULL) {
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wlr_seat_request_set_selection(device->seat, NULL, NULL,
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wl_display_next_serial(device->seat->display));
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return;
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}
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if (source->active_source != NULL ||
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source->active_primary_source != NULL) {
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wl_resource_post_error(control_resource,
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ZWLR_DATA_CONTROL_DEVICE_V1_ERROR_USED_SOURCE,
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"cannot use a data source in set_selection or "
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"set_primary_selection more than once");
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return;
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}
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struct client_data_source *client_source =
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calloc(1, sizeof(struct client_data_source));
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if (client_source == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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client_source->resource = source_resource;
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struct wlr_data_source *wlr_source = &client_source->source;
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wlr_data_source_init(wlr_source, &client_source_impl);
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source->active_source = wlr_source;
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wl_array_release(&wlr_source->mime_types);
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wlr_source->mime_types = source->mime_types;
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wl_array_init(&source->mime_types);
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source->finalized = true;
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wlr_seat_request_set_selection(device->seat, NULL, wlr_source,
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wl_display_next_serial(device->seat->display));
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}
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static void control_handle_set_primary_selection(struct wl_client *client,
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struct wl_resource *control_resource,
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struct wl_resource *source_resource) {
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struct wlr_data_control_device_v1 *device =
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control_from_resource(control_resource);
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if (device == NULL) {
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return;
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}
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struct data_control_source *source = NULL;
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if (source_resource != NULL) {
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source = source_from_resource(source_resource);
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}
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if (source == NULL) {
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wlr_seat_request_set_primary_selection(device->seat, NULL, NULL,
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wl_display_next_serial(device->seat->display));
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return;
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}
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if (source->active_source != NULL ||
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source->active_primary_source != NULL) {
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wl_resource_post_error(control_resource,
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ZWLR_DATA_CONTROL_DEVICE_V1_ERROR_USED_SOURCE,
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"cannot use a data source in set_selection or "
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"set_primary_selection more than once");
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return;
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}
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struct client_primary_selection_source *client_source =
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calloc(1, sizeof(struct client_primary_selection_source));
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if (client_source == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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client_source->resource = source_resource;
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struct wlr_primary_selection_source *wlr_source = &client_source->source;
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wlr_primary_selection_source_init(wlr_source, &client_primary_selection_source_impl);
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source->active_primary_source = wlr_source;
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wl_array_release(&wlr_source->mime_types);
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wlr_source->mime_types = source->mime_types;
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wl_array_init(&source->mime_types);
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source->finalized = true;
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wlr_seat_request_set_primary_selection(device->seat, NULL, wlr_source,
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wl_display_next_serial(device->seat->display));
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}
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static void control_handle_destroy(struct wl_client *client,
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struct wl_resource *control_resource) {
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wl_resource_destroy(control_resource);
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}
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static const struct zwlr_data_control_device_v1_interface control_impl = {
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.set_selection = control_handle_set_selection,
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.set_primary_selection = control_handle_set_primary_selection,
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.destroy = control_handle_destroy,
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};
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static void control_send_selection(struct wlr_data_control_device_v1 *device) {
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struct wlr_data_source *source = device->seat->selection_source;
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if (device->selection_offer_resource != NULL) {
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// Make the offer inert
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struct data_offer *offer = data_offer_from_offer_resource(
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device->selection_offer_resource);
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data_offer_destroy(offer);
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}
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device->selection_offer_resource = NULL;
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if (source != NULL) {
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device->selection_offer_resource =
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create_offer(device, &source->mime_types, false);
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if (device->selection_offer_resource == NULL) {
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wl_resource_post_no_memory(device->resource);
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return;
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}
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}
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zwlr_data_control_device_v1_send_selection(device->resource,
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device->selection_offer_resource);
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}
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static void control_send_primary_selection(
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struct wlr_data_control_device_v1 *device) {
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uint32_t version = wl_resource_get_version(device->resource);
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if (version < ZWLR_DATA_CONTROL_DEVICE_V1_PRIMARY_SELECTION_SINCE_VERSION) {
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return;
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}
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struct wlr_primary_selection_source *source =
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device->seat->primary_selection_source;
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if (device->primary_selection_offer_resource != NULL) {
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// Make the offer inert
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struct data_offer *offer = data_offer_from_offer_resource(
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device->primary_selection_offer_resource);
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data_offer_destroy(offer);
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}
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device->primary_selection_offer_resource = NULL;
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if (source != NULL) {
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device->primary_selection_offer_resource =
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create_offer(device, &source->mime_types, true);
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if (device->primary_selection_offer_resource == NULL) {
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wl_resource_post_no_memory(device->resource);
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return;
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}
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}
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zwlr_data_control_device_v1_send_primary_selection(device->resource,
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device->primary_selection_offer_resource);
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}
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static void control_handle_resource_destroy(struct wl_resource *resource) {
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struct wlr_data_control_device_v1 *device = control_from_resource(resource);
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wlr_data_control_device_v1_destroy(device);
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}
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static void control_handle_seat_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_data_control_device_v1 *device =
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wl_container_of(listener, device, seat_destroy);
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wlr_data_control_device_v1_destroy(device);
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}
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static void control_handle_seat_set_selection(struct wl_listener *listener,
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void *data) {
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struct wlr_data_control_device_v1 *device =
|
|
wl_container_of(listener, device, seat_set_selection);
|
|
control_send_selection(device);
|
|
}
|
|
|
|
static void control_handle_seat_set_primary_selection(
|
|
struct wl_listener *listener,
|
|
void *data) {
|
|
struct wlr_data_control_device_v1 *device =
|
|
wl_container_of(listener, device, seat_set_primary_selection);
|
|
control_send_primary_selection(device);
|
|
}
|
|
|
|
void wlr_data_control_device_v1_destroy(struct wlr_data_control_device_v1 *device) {
|
|
if (device == NULL) {
|
|
return;
|
|
}
|
|
zwlr_data_control_device_v1_send_finished(device->resource);
|
|
// Make the resources inert
|
|
wl_resource_set_user_data(device->resource, NULL);
|
|
if (device->selection_offer_resource != NULL) {
|
|
struct data_offer *offer = data_offer_from_offer_resource(
|
|
device->selection_offer_resource);
|
|
data_offer_destroy(offer);
|
|
}
|
|
if (device->primary_selection_offer_resource != NULL) {
|
|
struct data_offer *offer = data_offer_from_offer_resource(
|
|
device->primary_selection_offer_resource);
|
|
data_offer_destroy(offer);
|
|
}
|
|
wl_list_remove(&device->seat_destroy.link);
|
|
wl_list_remove(&device->seat_set_selection.link);
|
|
wl_list_remove(&device->seat_set_primary_selection.link);
|
|
wl_list_remove(&device->link);
|
|
free(device);
|
|
}
|
|
|
|
|
|
static const struct zwlr_data_control_manager_v1_interface manager_impl;
|
|
|
|
static struct wlr_data_control_manager_v1 *manager_from_resource(
|
|
struct wl_resource *resource) {
|
|
assert(wl_resource_instance_of(resource,
|
|
&zwlr_data_control_manager_v1_interface, &manager_impl));
|
|
return wl_resource_get_user_data(resource);
|
|
}
|
|
|
|
static void manager_handle_create_data_source(struct wl_client *client,
|
|
struct wl_resource *manager_resource, uint32_t id) {
|
|
struct data_control_source *source =
|
|
calloc(1, sizeof(struct data_control_source));
|
|
if (source == NULL) {
|
|
wl_resource_post_no_memory(manager_resource);
|
|
return;
|
|
}
|
|
|
|
wl_array_init(&source->mime_types);
|
|
|
|
uint32_t version = wl_resource_get_version(manager_resource);
|
|
source->resource = wl_resource_create(client,
|
|
&zwlr_data_control_source_v1_interface, version, id);
|
|
if (source->resource == NULL) {
|
|
wl_resource_post_no_memory(manager_resource);
|
|
wl_array_release(&source->mime_types);
|
|
free(source);
|
|
return;
|
|
}
|
|
wl_resource_set_implementation(source->resource, &source_impl, source,
|
|
source_handle_resource_destroy);
|
|
}
|
|
|
|
static void manager_handle_get_data_device(struct wl_client *client,
|
|
struct wl_resource *manager_resource, uint32_t id,
|
|
struct wl_resource *seat_resource) {
|
|
struct wlr_data_control_manager_v1 *manager =
|
|
manager_from_resource(manager_resource);
|
|
struct wlr_seat_client *seat_client =
|
|
wlr_seat_client_from_resource(seat_resource);
|
|
|
|
struct wlr_data_control_device_v1 *device =
|
|
calloc(1, sizeof(struct wlr_data_control_device_v1));
|
|
if (device == NULL) {
|
|
wl_resource_post_no_memory(manager_resource);
|
|
return;
|
|
}
|
|
device->manager = manager;
|
|
device->seat = seat_client->seat;
|
|
|
|
uint32_t version = wl_resource_get_version(manager_resource);
|
|
device->resource = wl_resource_create(client,
|
|
&zwlr_data_control_device_v1_interface, version, id);
|
|
if (device->resource == NULL) {
|
|
wl_resource_post_no_memory(manager_resource);
|
|
free(device);
|
|
return;
|
|
}
|
|
wl_resource_set_implementation(device->resource, &control_impl, device,
|
|
control_handle_resource_destroy);
|
|
struct wl_resource *resource = device->resource;
|
|
|
|
device->seat_destroy.notify = control_handle_seat_destroy;
|
|
wl_signal_add(&device->seat->events.destroy, &device->seat_destroy);
|
|
|
|
device->seat_set_selection.notify = control_handle_seat_set_selection;
|
|
wl_signal_add(&device->seat->events.set_selection,
|
|
&device->seat_set_selection);
|
|
|
|
device->seat_set_primary_selection.notify =
|
|
control_handle_seat_set_primary_selection;
|
|
wl_signal_add(&device->seat->events.set_primary_selection,
|
|
&device->seat_set_primary_selection);
|
|
|
|
wl_list_insert(&manager->devices, &device->link);
|
|
wlr_signal_emit_safe(&manager->events.new_device, device);
|
|
|
|
// At this point maybe the compositor decided to destroy the device. If
|
|
// it's the case then the resource will be inert.
|
|
device = control_from_resource(resource);
|
|
if (device != NULL) {
|
|
control_send_selection(device);
|
|
control_send_primary_selection(device);
|
|
}
|
|
}
|
|
|
|
static void manager_handle_destroy(struct wl_client *client,
|
|
struct wl_resource *manager_resource) {
|
|
wl_resource_destroy(manager_resource);
|
|
}
|
|
|
|
static const struct zwlr_data_control_manager_v1_interface manager_impl = {
|
|
.create_data_source = manager_handle_create_data_source,
|
|
.get_data_device = manager_handle_get_data_device,
|
|
.destroy = manager_handle_destroy,
|
|
};
|
|
|
|
static void manager_bind(struct wl_client *client, void *data, uint32_t version,
|
|
uint32_t id) {
|
|
struct wlr_data_control_manager_v1 *manager = data;
|
|
|
|
struct wl_resource *resource = wl_resource_create(client,
|
|
&zwlr_data_control_manager_v1_interface, version, id);
|
|
if (resource == NULL) {
|
|
wl_client_post_no_memory(client);
|
|
return;
|
|
}
|
|
wl_resource_set_implementation(resource, &manager_impl, manager, NULL);
|
|
}
|
|
|
|
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
|
struct wlr_data_control_manager_v1 *manager =
|
|
wl_container_of(listener, manager, display_destroy);
|
|
wlr_signal_emit_safe(&manager->events.destroy, manager);
|
|
wl_list_remove(&manager->display_destroy.link);
|
|
wl_global_destroy(manager->global);
|
|
free(manager);
|
|
}
|
|
|
|
struct wlr_data_control_manager_v1 *wlr_data_control_manager_v1_create(
|
|
struct wl_display *display) {
|
|
struct wlr_data_control_manager_v1 *manager =
|
|
calloc(1, sizeof(struct wlr_data_control_manager_v1));
|
|
if (manager == NULL) {
|
|
return NULL;
|
|
}
|
|
wl_list_init(&manager->devices);
|
|
wl_signal_init(&manager->events.destroy);
|
|
wl_signal_init(&manager->events.new_device);
|
|
|
|
manager->global = wl_global_create(display,
|
|
&zwlr_data_control_manager_v1_interface,
|
|
DATA_CONTROL_MANAGER_VERSION, manager, manager_bind);
|
|
if (manager->global == NULL) {
|
|
free(manager);
|
|
return NULL;
|
|
}
|
|
|
|
manager->display_destroy.notify = handle_display_destroy;
|
|
wl_display_add_destroy_listener(display, &manager->display_destroy);
|
|
|
|
return manager;
|
|
}
|