427 lines
12 KiB
C
427 lines
12 KiB
C
#define _XOPEN_SOURCE 700
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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_primary_selection.h>
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#include <wlr/types/wlr_seat.h>
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#include <wlr/util/log.h>
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#include "gtk-primary-selection-protocol.h"
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#include "util/signal.h"
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static const struct gtk_primary_selection_offer_interface offer_impl;
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static struct wlr_primary_selection_offer *offer_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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>k_primary_selection_offer_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, int32_t fd) {
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struct wlr_primary_selection_offer *offer = offer_from_resource(resource);
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if (offer->source && offer == offer->source->offer) {
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offer->source->send(offer->source, mime_type, fd);
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} else {
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close(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 gtk_primary_selection_offer_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_resource_handle_destroy(struct wl_resource *resource) {
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struct wlr_primary_selection_offer *offer = offer_from_resource(resource);
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if (!offer->source) {
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goto out;
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}
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wl_list_remove(&offer->source_destroy.link);
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if (offer->source->offer != offer) {
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goto out;
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}
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offer->source->offer = NULL;
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out:
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free(offer);
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}
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static void offer_handle_source_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_primary_selection_offer *offer =
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wl_container_of(listener, offer, source_destroy);
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offer->source = NULL;
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}
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struct client_data_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 void client_source_send(struct wlr_primary_selection_source *wlr_source,
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const char *mime_type, int32_t fd) {
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struct client_data_source *source = (struct client_data_source *)wlr_source;
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gtk_primary_selection_source_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_cancel(
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struct wlr_primary_selection_source *wlr_source) {
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struct client_data_source *source = (struct client_data_source *)wlr_source;
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gtk_primary_selection_source_send_cancelled(source->resource);
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}
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static struct wlr_primary_selection_offer *source_send_offer(
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struct wlr_primary_selection_source *source,
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struct wlr_seat_client *target) {
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if (wl_list_empty(&target->primary_selection_devices)) {
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return NULL;
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}
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struct wlr_primary_selection_offer *offer =
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calloc(1, sizeof(struct wlr_primary_selection_offer));
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if (offer == NULL) {
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return NULL;
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}
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uint32_t version = wl_resource_get_version(
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wl_resource_from_link(target->primary_selection_devices.next));
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offer->resource = wl_resource_create(target->client,
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>k_primary_selection_offer_interface, version, 0);
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if (offer->resource == NULL) {
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free(offer);
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return NULL;
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}
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wl_resource_set_implementation(offer->resource, &offer_impl, offer,
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offer_resource_handle_destroy);
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offer->source_destroy.notify = offer_handle_source_destroy;
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wl_signal_add(&source->events.destroy, &offer->source_destroy);
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struct wl_resource *target_resource;
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wl_resource_for_each(target_resource, &target->primary_selection_devices) {
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gtk_primary_selection_device_send_data_offer(target_resource,
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offer->resource);
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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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gtk_primary_selection_offer_send_offer(offer->resource, *p);
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}
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offer->source = source;
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source->offer = offer;
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return offer;
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}
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static const struct gtk_primary_selection_source_interface source_impl;
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static struct client_data_source *client_data_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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>k_primary_selection_source_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 client_data_source *source =
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client_data_source_from_resource(resource);
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char **p = wl_array_add(&source->source.mime_types, sizeof(*p));
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if (p) {
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*p = strdup(mime_type);
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}
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if (p == NULL || *p == NULL) {
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if (p) {
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source->source.mime_types.size -= sizeof(*p);
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}
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wl_resource_post_no_memory(resource);
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}
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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 gtk_primary_selection_source_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 source_resource_handle_destroy(struct wl_resource *resource) {
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struct client_data_source *source =
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client_data_source_from_resource(resource);
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wlr_primary_selection_source_finish(&source->source);
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free(source);
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}
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void wlr_seat_client_send_primary_selection(
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struct wlr_seat_client *seat_client) {
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if (wl_list_empty(&seat_client->primary_selection_devices)) {
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return;
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}
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if (seat_client->seat->primary_selection_source) {
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struct wlr_primary_selection_offer *offer = source_send_offer(
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seat_client->seat->primary_selection_source, seat_client);
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if (offer == NULL) {
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return;
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}
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struct wl_resource *resource;
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wl_resource_for_each(resource, &seat_client->primary_selection_devices) {
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gtk_primary_selection_device_send_selection(resource, offer->resource);
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}
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} else {
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struct wl_resource *resource;
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wl_resource_for_each(resource, &seat_client->primary_selection_devices) {
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gtk_primary_selection_device_send_selection(resource, NULL);
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}
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}
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}
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static void seat_client_primary_selection_source_destroy(
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struct wl_listener *listener, void *data) {
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struct wlr_seat *seat =
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wl_container_of(listener, seat, primary_selection_source_destroy);
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struct wlr_seat_client *seat_client = seat->keyboard_state.focused_client;
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if (seat_client && seat->keyboard_state.focused_surface) {
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struct wl_resource *resource;
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wl_resource_for_each(resource, &seat_client->primary_selection_devices) {
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gtk_primary_selection_device_send_selection(resource, NULL);
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}
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}
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seat->primary_selection_source = NULL;
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wlr_signal_emit_safe(&seat->events.primary_selection, seat);
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}
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void wlr_seat_set_primary_selection(struct wlr_seat *seat,
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struct wlr_primary_selection_source *source, uint32_t serial) {
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if (source) {
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assert(source->send);
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assert(source->cancel);
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}
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if (seat->primary_selection_source &&
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seat->primary_selection_serial - serial < UINT32_MAX / 2) {
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return;
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}
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if (seat->primary_selection_source) {
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seat->primary_selection_source->cancel(seat->primary_selection_source);
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seat->primary_selection_source = NULL;
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wl_list_remove(&seat->primary_selection_source_destroy.link);
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}
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seat->primary_selection_source = source;
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seat->primary_selection_serial = serial;
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struct wlr_seat_client *focused_client =
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seat->keyboard_state.focused_client;
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if (focused_client) {
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wlr_seat_client_send_primary_selection(focused_client);
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}
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wlr_signal_emit_safe(&seat->events.primary_selection, seat);
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if (source) {
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seat->primary_selection_source_destroy.notify =
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seat_client_primary_selection_source_destroy;
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wl_signal_add(&source->events.destroy,
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&seat->primary_selection_source_destroy);
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}
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}
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static const struct gtk_primary_selection_device_interface device_impl;
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static struct wlr_seat_client *seat_client_from_device_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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>k_primary_selection_device_interface, &device_impl));
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return wl_resource_get_user_data(resource);
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}
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static void device_handle_set_selection(struct wl_client *client,
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struct wl_resource *resource, struct wl_resource *source_resource,
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uint32_t serial) {
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struct client_data_source *source = NULL;
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if (source_resource != NULL) {
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source = client_data_source_from_resource(source_resource);
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}
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struct wlr_seat_client *seat_client =
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seat_client_from_device_resource(resource);
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struct wlr_primary_selection_source *wlr_source =
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(struct wlr_primary_selection_source *)source;
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wlr_seat_set_primary_selection(seat_client->seat, wlr_source, serial);
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}
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static void device_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 gtk_primary_selection_device_interface device_impl = {
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.set_selection = device_handle_set_selection,
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.destroy = device_handle_destroy,
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};
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static void device_resource_handle_destroy(struct wl_resource *resource) {
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wl_list_remove(wl_resource_get_link(resource));
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}
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void wlr_primary_selection_source_init(
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struct wlr_primary_selection_source *source) {
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wl_array_init(&source->mime_types);
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wl_signal_init(&source->events.destroy);
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}
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void wlr_primary_selection_source_finish(
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struct wlr_primary_selection_source *source) {
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if (source == NULL) {
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return;
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}
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wlr_signal_emit_safe(&source->events.destroy, source);
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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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}
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static void device_manager_handle_create_source(struct wl_client *client,
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struct wl_resource *manager_resource, uint32_t id) {
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struct client_data_source *source =
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calloc(1, sizeof(struct client_data_source));
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if (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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wlr_primary_selection_source_init(&source->source);
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int version = wl_resource_get_version(manager_resource);
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source->resource = wl_resource_create(client,
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>k_primary_selection_source_interface, version, id);
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if (source->resource == NULL) {
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free(source);
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(source->resource, &source_impl, source,
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source_resource_handle_destroy);
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source->source.send = client_source_send;
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source->source.cancel = client_source_cancel;
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}
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void device_manager_handle_get_device(struct wl_client *client,
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struct wl_resource *manager_resource, uint32_t id,
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struct wl_resource *seat_resource) {
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struct wlr_seat_client *seat_client =
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wlr_seat_client_from_resource(seat_resource);
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uint32_t version = wl_resource_get_version(manager_resource);
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struct wl_resource *resource = wl_resource_create(client,
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>k_primary_selection_device_interface, version, id);
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if (resource == NULL) {
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wl_resource_post_no_memory(manager_resource);
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return;
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}
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wl_resource_set_implementation(resource, &device_impl, seat_client,
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&device_resource_handle_destroy);
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wl_list_insert(&seat_client->primary_selection_devices,
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wl_resource_get_link(resource));
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}
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static void device_manager_handle_destroy(struct wl_client *client,
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struct wl_resource *manager_resource) {
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wl_resource_destroy(manager_resource);
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}
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static const struct gtk_primary_selection_device_manager_interface
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device_manager_impl = {
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.create_source = device_manager_handle_create_source,
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.get_device = device_manager_handle_get_device,
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.destroy = device_manager_handle_destroy,
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};
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static void primary_selection_device_manager_bind(struct wl_client *client,
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void *data, uint32_t version, uint32_t id) {
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struct wlr_primary_selection_device_manager *manager = data;
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struct wl_resource *resource = wl_resource_create(client,
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>k_primary_selection_device_manager_interface, version, id);
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if (resource == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(resource, &device_manager_impl, manager,
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NULL);
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_primary_selection_device_manager *manager =
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wl_container_of(listener, manager, display_destroy);
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wlr_primary_selection_device_manager_destroy(manager);
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}
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struct wlr_primary_selection_device_manager *
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wlr_primary_selection_device_manager_create(
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struct wl_display *display) {
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struct wlr_primary_selection_device_manager *manager =
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calloc(1, sizeof(struct wlr_primary_selection_device_manager));
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if (manager == NULL) {
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return NULL;
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}
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manager->global = wl_global_create(display,
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>k_primary_selection_device_manager_interface, 1, manager,
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primary_selection_device_manager_bind);
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if (manager->global == NULL) {
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free(manager);
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return NULL;
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}
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manager->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &manager->display_destroy);
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return manager;
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}
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void wlr_primary_selection_device_manager_destroy(
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struct wlr_primary_selection_device_manager *manager) {
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if (manager == NULL) {
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return;
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}
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wl_list_remove(&manager->display_destroy.link);
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// TODO: free wl_resources
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wl_global_destroy(manager->global);
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free(manager);
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}
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