--- /dev/null
+/*
+ * Copyright © 2011 Kristian Høgsberg
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "wayland-server.h"
+
+static void
+data_offer_accept(struct wl_client *client, struct wl_resource *resource,
+ uint32_t time, const char *mime_type)
+{
+ struct wl_data_offer *offer = resource->data;
+
+ /* FIXME: Check that client is currently focused by the input
+ * device that is currently dragging this data source. Should
+ * this be a wl_data_device request? */
+
+ if (offer->source)
+ wl_resource_post_event(&offer->source->resource,
+ WL_DATA_SOURCE_TARGET, mime_type);
+}
+
+static void
+data_offer_receive(struct wl_client *client, struct wl_resource *resource,
+ const char *mime_type, int32_t fd)
+{
+ struct wl_data_offer *offer = resource->data;
+
+ if (offer->source)
+ wl_resource_post_event(&offer->source->resource,
+ WL_DATA_SOURCE_SEND, mime_type, fd);
+
+ close(fd);
+}
+
+static void
+data_offer_destroy(struct wl_client *client, struct wl_resource *resource)
+{
+ wl_resource_destroy(resource, 0);
+}
+
+static void
+destroy_data_offer(struct wl_resource *resource)
+{
+ struct wl_data_offer *offer = resource->data;
+
+ wl_list_remove(&offer->source_destroy_listener.link);
+ free(offer);
+}
+
+static const struct wl_data_offer_interface data_offer_interface = {
+ data_offer_accept,
+ data_offer_receive,
+ data_offer_destroy,
+};
+
+static void
+destroy_offer_data_source(struct wl_listener *listener,
+ struct wl_resource *resource, uint32_t time)
+{
+ struct wl_data_offer *offer = resource->data;
+
+ offer->source = NULL;
+}
+
+static void
+data_source_cancel(struct wl_data_source *source)
+{
+ wl_resource_post_event(&source->resource, WL_DATA_SOURCE_CANCELLED);
+}
+
+static struct wl_resource *
+wl_data_source_send_offer(struct wl_data_source *source,
+ struct wl_resource *target)
+{
+ struct wl_data_offer *offer;
+ char **p, **end;
+
+ offer = malloc(sizeof *offer);
+ if (offer == NULL)
+ return NULL;
+
+ offer->resource.destroy = destroy_data_offer;
+ offer->resource.object.id = 0;
+ offer->resource.object.interface = &wl_data_offer_interface;
+ offer->resource.object.implementation =
+ (void (**)(void)) source->offer_interface;
+ offer->resource.data = offer;
+ wl_list_init(&offer->resource.destroy_listener_list);
+
+ offer->source = source;
+ offer->source_destroy_listener.func = destroy_offer_data_source;
+ wl_list_insert(&source->resource.destroy_listener_list,
+ &offer->source_destroy_listener.link);
+
+ wl_client_add_resource(target->client, &offer->resource);
+
+ wl_resource_post_event(target,
+ WL_DATA_DEVICE_DATA_OFFER, &offer->resource);
+
+ end = source->mime_types.data + source->mime_types.size;
+ for (p = source->mime_types.data; p < end; p++)
+ wl_resource_post_event(&offer->resource,
+ WL_DATA_OFFER_OFFER, *p);
+
+ return &offer->resource;
+}
+
+static void
+data_source_offer(struct wl_client *client,
+ struct wl_resource *resource,
+ const char *type)
+{
+ struct wl_data_source *source = resource->data;
+ char **p;
+
+ p = wl_array_add(&source->mime_types, sizeof *p);
+ if (p)
+ *p = strdup(type);
+ if (!p || !*p)
+ wl_resource_post_no_memory(resource);
+}
+
+static void
+data_source_destroy(struct wl_client *client, struct wl_resource *resource)
+{
+ wl_resource_destroy(resource, 0);
+}
+
+static struct wl_data_source_interface data_source_interface = {
+ data_source_offer,
+ data_source_destroy
+};
+
+static struct wl_resource *
+find_resource(struct wl_list *list, struct wl_client *client)
+{
+ struct wl_resource *r;
+
+ wl_list_for_each(r, list, link) {
+ if (r->client == client)
+ return r;
+ }
+
+ return NULL;
+}
+
+static void
+destroy_drag_focus(struct wl_listener *listener,
+ struct wl_resource *resource, uint32_t time)
+{
+ struct wl_input_device *device =
+ container_of(listener, struct wl_input_device,
+ drag_focus_listener);
+
+ device->drag_focus_resource = NULL;
+}
+
+static void
+drag_grab_focus(struct wl_grab *grab, uint32_t time,
+ struct wl_surface *surface, int32_t x, int32_t y)
+{
+ struct wl_input_device *device =
+ container_of(grab, struct wl_input_device, drag_grab);
+ struct wl_resource *resource, *offer;
+
+ if (device->drag_focus_resource) {
+ wl_resource_post_event(device->drag_focus_resource,
+ WL_DATA_DEVICE_LEAVE);
+ wl_list_remove(&device->drag_focus_listener.link);
+ device->drag_focus_resource = NULL;
+ device->drag_focus = NULL;
+ }
+
+ if (surface)
+ resource = find_resource(&device->drag_resource_list,
+ surface->resource.client);
+ if (surface && resource) {
+ offer = wl_data_source_send_offer(device->drag_data_source,
+ resource);
+
+ wl_resource_post_event(resource,
+ WL_DATA_DEVICE_ENTER,
+ time, surface, x, y, offer);
+
+ device->drag_focus = surface;
+ device->drag_focus_listener.func = destroy_drag_focus;
+ wl_list_insert(resource->destroy_listener_list.prev,
+ &device->drag_focus_listener.link);
+ device->drag_focus_resource = resource;
+ grab->focus = surface;
+ }
+}
+
+static void
+drag_grab_motion(struct wl_grab *grab,
+ uint32_t time, int32_t x, int32_t y)
+{
+ struct wl_input_device *device =
+ container_of(grab, struct wl_input_device, drag_grab);
+
+ if (device->drag_focus_resource)
+ wl_resource_post_event(device->drag_focus_resource,
+ WL_DATA_DEVICE_MOTION, time, x, y);
+}
+
+static void
+drag_grab_button(struct wl_grab *grab,
+ uint32_t time, int32_t button, int32_t state)
+{
+ struct wl_input_device *device =
+ container_of(grab, struct wl_input_device, drag_grab);
+
+ if (device->drag_focus_resource &&
+ device->grab_button == button && state == 0)
+ wl_resource_post_event(device->drag_focus_resource,
+ WL_DATA_DEVICE_DROP);
+
+ if (device->button_count == 0 && state == 0) {
+ wl_input_device_end_grab(device, time);
+ device->drag_data_source = NULL;
+ }
+}
+
+static const struct wl_grab_interface drag_grab_interface = {
+ drag_grab_focus,
+ drag_grab_motion,
+ drag_grab_button,
+};
+
+static void
+data_device_start_drag(struct wl_client *client, struct wl_resource *resource,
+ struct wl_resource *source_resource,
+ struct wl_resource *surface_resource, uint32_t time)
+{
+ struct wl_input_device *device = resource->data;
+
+ /* FIXME: Check that client has implicit grab on the surface
+ * that matches the given time. */
+
+ /* FIXME: Check that the data source type array isn't empty. */
+
+ device->drag_grab.interface = &drag_grab_interface;
+ device->drag_data_source = source_resource->data;
+
+ wl_input_device_start_grab(device, &device->drag_grab, time);
+}
+
+static void
+data_device_attach(struct wl_client *client, struct wl_resource *resource,
+ uint32_t time,
+ struct wl_resource *buffer, int32_t x, int32_t y)
+{
+}
+
+static void
+destroy_selection_data_source(struct wl_listener *listener,
+ struct wl_resource *resource, uint32_t time)
+{
+ struct wl_input_device *device =
+ container_of(listener, struct wl_input_device,
+ selection_data_source_listener);
+ struct wl_resource *data_device, *focus;
+
+ device->selection_data_source = NULL;
+
+ focus = device->keyboard_focus_resource;
+ if (focus) {
+ data_device = find_resource(&device->drag_resource_list,
+ focus->client);
+ wl_resource_post_event(data_device,
+ WL_DATA_DEVICE_SELECTION, NULL);
+ }
+}
+
+WL_EXPORT void
+wl_input_device_set_selection(struct wl_input_device *device,
+ struct wl_data_source *source, uint32_t time)
+{
+ struct wl_resource *data_device, *focus, *offer;
+ struct wl_selection_listener *listener, *next;
+
+ if (device->selection_data_source) {
+ device->selection_data_source->cancel(device->selection_data_source);
+ wl_list_remove(&device->selection_data_source_listener.link);
+ device->selection_data_source = NULL;
+ }
+
+ device->selection_data_source = source;
+
+ focus = device->keyboard_focus_resource;
+ if (focus) {
+ data_device = find_resource(&device->drag_resource_list,
+ focus->client);
+ if (data_device) {
+ offer = wl_data_source_send_offer(device->selection_data_source,
+ data_device);
+ wl_resource_post_event(data_device,
+ WL_DATA_DEVICE_SELECTION,
+ offer);
+ }
+ }
+
+ wl_list_for_each_safe(listener, next,
+ &device->selection_listener_list, link)
+ listener->func(listener, device);
+
+ device->selection_data_source_listener.func =
+ destroy_selection_data_source;
+ wl_list_insert(source->resource.destroy_listener_list.prev,
+ &device->selection_data_source_listener.link);
+}
+
+static void
+data_device_set_selection(struct wl_client *client,
+ struct wl_resource *resource,
+ struct wl_resource *source_resource, uint32_t time)
+{
+ if (!source_resource)
+ return;
+
+ wl_input_device_set_selection(resource->data,
+ source_resource->data, time);
+}
+
+static const struct wl_data_device_interface data_device_interface = {
+ data_device_start_drag,
+ data_device_attach,
+ data_device_set_selection,
+};
+
+static void
+destroy_data_source(struct wl_resource *resource)
+{
+ struct wl_data_source *source =
+ container_of(resource, struct wl_data_source, resource);
+ char **p, **end;
+
+ end = source->mime_types.data + source->mime_types.size;
+ for (p = source->mime_types.data; p < end; p++)
+ free(*p);
+
+ wl_array_release(&source->mime_types);
+
+ source->resource.object.id = 0;
+}
+
+static void
+create_data_source(struct wl_client *client,
+ struct wl_resource *resource, uint32_t id)
+{
+ struct wl_data_source *source;
+
+ source = malloc(sizeof *source);
+ if (source == NULL) {
+ wl_resource_post_no_memory(resource);
+ return;
+ }
+
+ source->resource.destroy = destroy_data_source;
+ source->resource.object.id = id;
+ source->resource.object.interface = &wl_data_source_interface;
+ source->resource.object.implementation =
+ (void (**)(void)) &data_source_interface;
+ source->resource.data = source;
+ wl_list_init(&source->resource.destroy_listener_list);
+
+ source->offer_interface = &data_offer_interface;
+ source->cancel = data_source_cancel;
+
+ wl_array_init(&source->mime_types);
+ wl_client_add_resource(client, &source->resource);
+}
+
+static void unbind_data_device(struct wl_resource *resource)
+{
+ wl_list_remove(&resource->link);
+ free(resource);
+}
+
+static void
+get_data_device(struct wl_client *client,
+ struct wl_resource *manager_resource,
+ uint32_t id, struct wl_resource *input_device)
+{
+ struct wl_input_device *device = input_device->data;
+ struct wl_resource *resource;
+
+ resource =
+ wl_client_add_object(client, &wl_data_device_interface,
+ &data_device_interface, id, device);
+
+ wl_list_insert(&device->drag_resource_list, &resource->link);
+ resource->destroy = unbind_data_device;
+}
+
+static const struct wl_data_device_manager_interface manager_interface = {
+ create_data_source,
+ get_data_device
+};
+
+static void
+bind_manager(struct wl_client *client,
+ void *data, uint32_t version, uint32_t id)
+{
+ wl_client_add_object(client, &wl_data_device_manager_interface,
+ &manager_interface, id, NULL);
+}
+
+WL_EXPORT void
+wl_data_device_set_keyboard_focus(struct wl_input_device *device)
+{
+ struct wl_resource *data_device, *focus, *offer;
+ struct wl_data_source *source;
+
+ focus = device->keyboard_focus_resource;
+ if (!focus)
+ return;
+
+ data_device = find_resource(&device->drag_resource_list,
+ focus->client);
+ if (!data_device)
+ return;
+
+ source = device->selection_data_source;
+ if (source) {
+ offer = wl_data_source_send_offer(source, data_device);
+ wl_resource_post_event(data_device,
+ WL_DATA_DEVICE_SELECTION, offer);
+ }
+}
+
+WL_EXPORT int
+wl_data_device_manager_init(struct wl_display *display)
+{
+ if (wl_display_add_global(display,
+ &wl_data_device_manager_interface,
+ NULL, bind_manager) == NULL)
+ return -1;
+
+ return 0;
+}
projects / profile / ivi / wayland.git / commitdiff