+++ /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 "compositor.h"
-
-static void
-data_offer_accept(struct wl_client *client, struct wl_resource *resource,
- uint32_t time, const char *mime_type)
-{
- struct weston_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 weston_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, weston_compositor_get_time());
-}
-
-static void
-destroy_data_offer(struct wl_resource *resource)
-{
- struct weston_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 weston_data_offer *offer = resource->data;
-
- offer->source = NULL;
-}
-
-static void
-data_source_cancel(struct weston_data_source *source)
-{
- wl_resource_post_event(&source->resource, WL_DATA_SOURCE_CANCELLED);
-}
-
-static struct wl_resource *
-weston_data_source_send_offer(struct weston_data_source *source,
- struct wl_resource *target)
-{
- struct weston_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 weston_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, weston_compositor_get_time());
-}
-
-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 weston_input_device *device =
- container_of(listener, struct weston_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 weston_input_device *device =
- container_of(grab, struct weston_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 = weston_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 weston_input_device *device =
- container_of(grab, struct weston_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 weston_input_device *device =
- container_of(grab, struct weston_input_device, drag_grab);
-
- if (device->drag_focus_resource &&
- device->input_device.grab_button == button && state == 0)
- wl_resource_post_event(device->drag_focus_resource,
- WL_DATA_DEVICE_DROP);
-
- if (device->input_device.button_count == 0 && state == 0) {
- wl_input_device_end_grab(&device->input_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 weston_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->input_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 weston_input_device *device =
- container_of(listener, struct weston_input_device,
- selection_data_source_listener);
- struct wl_resource *data_device, *focus;
-
- device->selection_data_source = NULL;
-
- focus = device->input_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);
- }
-}
-
-void
-weston_input_device_set_selection(struct weston_input_device *device,
- struct weston_data_source *source, uint32_t time)
-{
- struct wl_resource *data_device, *focus, *offer;
- struct weston_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->input_device.keyboard_focus_resource;
- if (focus) {
- data_device = find_resource(&device->drag_resource_list,
- focus->client);
- if (data_device) {
- offer = weston_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;
-
- weston_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 weston_data_source *source =
- container_of(resource, struct weston_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 weston_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 weston_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
-weston_data_device_set_keyboard_focus(struct weston_input_device *device)
-{
- struct wl_resource *data_device, *focus, *offer;
- struct weston_data_source *source;
-
- focus = device->input_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 = weston_data_source_send_offer(source, data_device);
- wl_resource_post_event(data_device,
- WL_DATA_DEVICE_SELECTION, offer);
- }
-}
-
-WL_EXPORT int
-weston_data_device_manager_init(struct weston_compositor *compositor)
-{
- if (wl_display_add_global(compositor->wl_display,
- &wl_data_device_manager_interface,
- NULL, bind_manager) == NULL)
- return -1;
-
- return 0;
-}
projects / platform / upstream / weston.git / commitdiff