The new protocol splits dnd/selection from wl_shell and allows us to move the implementation out of shell.c.dev
Kristian Høgsberg
13 years ago
parent
f02bb64d62
commit
47fe08aad5
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/*
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* Copyright © 2011 Kristian Høgsberg |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and its |
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* documentation for any purpose is hereby granted without fee, provided that |
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* the above copyright notice appear in all copies and that both that copyright |
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* notice and this permission notice appear in supporting documentation, and |
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* that the name of the copyright holders not be used in advertising or |
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* publicity pertaining to distribution of the software without specific, |
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* written prior permission. The copyright holders make no representations |
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* about the suitability of this software for any purpose. It is provided "as |
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* is" without express or implied warranty. |
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* |
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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*/ |
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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 <stdio.h> |
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#include "compositor.h" |
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struct wlsc_data_source { |
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struct wl_resource resource; |
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struct wl_array mime_types; |
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int refcount; |
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}; |
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static void |
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wlsc_data_source_unref(struct wlsc_data_source *source) |
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{ |
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source->refcount--; |
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if (source->refcount == 1 && source->resource.object.id != 0) { |
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wl_resource_post_event(&source->resource, |
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WL_DATA_SOURCE_CANCELLED); |
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} else if (source->refcount == 0) { |
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free(source); |
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} |
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} |
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static void |
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data_offer_accept(struct wl_client *client, struct wl_resource *resource, |
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uint32_t time, const char *mime_type) |
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{ |
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struct wlsc_data_source *source = resource->data; |
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/* FIXME: Check that client is currently focused by the input
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* device that is currently dragging this data source. Should |
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* this be a wl_data_device request? */ |
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wl_resource_post_event(&source->resource, |
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WL_DATA_SOURCE_TARGET, mime_type); |
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} |
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static void |
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data_offer_receive(struct wl_client *client, struct wl_resource *resource, |
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const char *mime_type, int32_t fd) |
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{ |
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struct wlsc_data_source *source = resource->data; |
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wl_resource_post_event(&source->resource, |
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WL_DATA_SOURCE_SEND, mime_type, fd); |
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close(fd); |
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} |
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static void |
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data_offer_destroy(struct wl_client *client, struct wl_resource *resource) |
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{ |
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wl_resource_destroy(resource, wlsc_compositor_get_time()); |
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} |
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static void |
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destroy_data_offer(struct wl_resource *resource) |
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{ |
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struct wlsc_data_source *source = resource->data; |
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wlsc_data_source_unref(source); |
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free(resource); |
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} |
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static const struct wl_data_offer_interface data_offer_interface = { |
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data_offer_accept, |
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data_offer_receive, |
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data_offer_destroy, |
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}; |
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static struct wl_resource * |
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wlsc_data_source_send_offer(struct wlsc_data_source *source, |
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struct wl_resource *target) |
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{ |
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struct wl_resource *resource; |
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char **p, **end; |
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resource = wl_client_new_object(target->client, |
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&wl_data_offer_interface, |
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&data_offer_interface, source); |
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resource->destroy = destroy_data_offer; |
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source->refcount++; |
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wl_resource_post_event(target, WL_DATA_DEVICE_DATA_OFFER, resource); |
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end = source->mime_types.data + source->mime_types.size; |
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for (p = source->mime_types.data; p < end; p++) |
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wl_resource_post_event(resource, WL_DATA_OFFER_OFFER, *p); |
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return resource; |
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} |
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static void |
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data_source_offer(struct wl_client *client, |
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struct wl_resource *resource, |
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const char *type) |
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{ |
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struct wlsc_data_source *source = resource->data; |
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char **p; |
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p = wl_array_add(&source->mime_types, sizeof *p); |
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if (p) |
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*p = strdup(type); |
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if (!p || !*p) |
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wl_resource_post_no_memory(resource); |
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} |
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static void |
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data_source_destroy(struct wl_client *client, struct wl_resource *resource) |
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{ |
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wl_resource_destroy(resource, wlsc_compositor_get_time()); |
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} |
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static struct wl_data_source_interface data_source_interface = { |
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data_source_offer, |
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data_source_destroy |
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}; |
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static struct wl_resource * |
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find_resource(struct wl_list *list, struct wl_client *client) |
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{ |
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struct wl_resource *r; |
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wl_list_for_each(r, list, link) { |
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if (r->client == client) |
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return r; |
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} |
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return NULL; |
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} |
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static void |
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destroy_drag_focus(struct wl_listener *listener, |
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struct wl_resource *resource, uint32_t time) |
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{ |
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struct wlsc_input_device *device = |
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container_of(listener, struct wlsc_input_device, |
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drag_focus_listener); |
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device->drag_focus_resource = NULL; |
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} |
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static void |
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drag_set_focus(struct wlsc_input_device *device, |
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struct wl_surface *surface, uint32_t time, |
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int32_t x, int32_t y) |
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{ |
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struct wl_resource *resource, *offer; |
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if (device->drag_focus == surface) |
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return; |
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if (device->drag_focus_resource) { |
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wl_resource_post_event(device->drag_focus_resource, |
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WL_DATA_DEVICE_LEAVE); |
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wl_list_remove(&device->drag_focus_listener.link); |
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device->drag_focus_resource = NULL; |
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device->drag_focus = NULL; |
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} |
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if (surface) |
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resource = find_resource(&device->drag_resource_list,
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surface->resource.client); |
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if (surface && resource) { |
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offer = wlsc_data_source_send_offer(device->drag_data_source, |
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resource); |
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wl_resource_post_event(resource, |
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WL_DATA_DEVICE_ENTER, |
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time, surface, x, y, offer); |
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device->drag_focus = surface; |
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device->drag_focus_listener.func = destroy_drag_focus; |
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wl_list_insert(resource->destroy_listener_list.prev, |
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&device->drag_focus_listener.link); |
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device->drag_focus_resource = resource; |
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} |
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} |
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static void |
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drag_grab_motion(struct wl_grab *grab, |
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uint32_t time, int32_t x, int32_t y) |
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{ |
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struct wlsc_input_device *device = |
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container_of(grab, struct wlsc_input_device, grab); |
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struct wlsc_surface *es; |
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es = pick_surface(&device->input_device, &x, &y); |
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drag_set_focus(device, &es->surface, time, x, y); |
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if (es && device->drag_focus_resource) |
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wl_resource_post_event(device->drag_focus_resource, |
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WL_DATA_DEVICE_MOTION, time, x, y); |
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} |
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static void |
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drag_grab_button(struct wl_grab *grab, |
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uint32_t time, int32_t button, int32_t state) |
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{ |
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} |
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static void |
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drag_grab_end(struct wl_grab *grab, uint32_t time) |
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{ |
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struct wlsc_input_device *device = |
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container_of(grab, struct wlsc_input_device, grab); |
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if (device->drag_focus_resource) |
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wl_resource_post_event(device->drag_focus_resource, |
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WL_DATA_DEVICE_DROP); |
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drag_set_focus(device, NULL, time, 0, 0); |
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wlsc_data_source_unref(device->drag_data_source); |
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device->drag_data_source = NULL; |
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} |
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static const struct wl_grab_interface drag_grab_interface = { |
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drag_grab_motion, |
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drag_grab_button, |
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drag_grab_end |
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}; |
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static void |
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data_device_start_drag(struct wl_client *client, struct wl_resource *resource, |
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struct wl_resource *source_resource, |
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struct wl_resource *surface_resource, uint32_t time) |
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{ |
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struct wlsc_input_device *device = resource->data; |
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struct wlsc_surface *surface = surface_resource->data; |
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struct wlsc_surface *target; |
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int32_t sx, sy; |
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/* FIXME: Check that client has implicit grab on the surface
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* that matches the given time. */ |
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/* FIXME: Check that the data source type array isn't empty. */ |
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if (wl_input_device_update_grab(&device->input_device, &device->grab, |
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&surface->surface, time) < 0) |
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return; |
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device->grab.interface = &drag_grab_interface; |
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device->drag_data_source = source_resource->data; |
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device->drag_data_source->refcount++; |
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target = pick_surface(&device->input_device, &sx, &sy); |
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wl_input_device_set_pointer_focus(&device->input_device, |
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NULL, time, 0, 0, 0, 0); |
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drag_set_focus(device, &target->surface, time, sx, sy); |
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} |
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static void |
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data_device_attach(struct wl_client *client, struct wl_resource *resource, |
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uint32_t time, |
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struct wl_resource *buffer, int32_t x, int32_t y) |
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{ |
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} |
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static void |
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destroy_selection_data_source(struct wl_listener *listener, |
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struct wl_resource *resource, uint32_t time) |
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{ |
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struct wlsc_input_device *device = |
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container_of(listener, struct wlsc_input_device, |
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selection_data_source_listener); |
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struct wl_resource *data_device, *focus; |
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device->selection_data_source = NULL; |
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focus = device->input_device.keyboard_focus_resource; |
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if (focus) { |
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data_device = find_resource(&device->drag_resource_list, |
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focus->client); |
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wl_resource_post_event(data_device, |
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WL_DATA_DEVICE_SELECTION, NULL); |
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} |
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} |
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static void |
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data_device_set_selection(struct wl_client *client, |
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struct wl_resource *resource, |
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struct wl_resource *source_resource, uint32_t time) |
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{ |
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struct wlsc_input_device *device = resource->data; |
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struct wl_resource *data_device, *focus, *offer; |
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if (!source_resource) |
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return; |
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if (device->selection_data_source) { |
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/* FIXME: All non-active clients will probably hold a
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* reference to the selection data source, and thus it |
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* won't get destroyed until every client has been |
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* activated and seen the new selection event. */ |
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wl_list_remove(&device->selection_data_source_listener.link); |
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wlsc_data_source_unref(device->selection_data_source); |
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device->selection_data_source = NULL; |
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} |
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device->selection_data_source = source_resource->data; |
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device->selection_data_source->refcount++; |
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focus = device->input_device.keyboard_focus_resource; |
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if (focus) { |
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data_device = find_resource(&device->drag_resource_list, |
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focus->client); |
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offer = wlsc_data_source_send_offer(device->selection_data_source, |
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data_device); |
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wl_resource_post_event(data_device, |
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WL_DATA_DEVICE_SELECTION, offer); |
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} |
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device->selection_data_source_listener.func = |
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destroy_selection_data_source; |
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wl_list_insert(source_resource->destroy_listener_list.prev, |
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&device->selection_data_source_listener.link); |
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} |
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static const struct wl_data_device_interface data_device_interface = { |
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data_device_start_drag, |
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data_device_attach, |
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data_device_set_selection, |
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}; |
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static void |
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destroy_data_source(struct wl_resource *resource) |
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{ |
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struct wlsc_data_source *source = |
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container_of(resource, struct wlsc_data_source, resource); |
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char **p, **end; |
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end = source->mime_types.data + source->mime_types.size; |
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for (p = source->mime_types.data; p < end; p++) |
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free(*p); |
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wl_array_release(&source->mime_types); |
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source->resource.object.id = 0; |
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wlsc_data_source_unref(source); |
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} |
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static void |
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create_data_source(struct wl_client *client, |
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struct wl_resource *resource, uint32_t id) |
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{ |
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struct wlsc_data_source *source; |
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source = malloc(sizeof *source); |
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if (source == NULL) { |
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wl_resource_post_no_memory(resource); |
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return; |
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} |
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source->resource.destroy = destroy_data_source; |
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source->resource.object.id = id; |
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source->resource.object.interface = &wl_data_source_interface; |
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source->resource.object.implementation = |
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(void (**)(void)) &data_source_interface; |
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source->resource.data = source; |
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source->refcount = 1; |
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wl_array_init(&source->mime_types); |
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wl_client_add_resource(client, &source->resource); |
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} |
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static void unbind_data_device(struct wl_resource *resource) |
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{ |
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wl_list_remove(&resource->link); |
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free(resource); |
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} |
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static void |
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get_data_device(struct wl_client *client, |
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struct wl_resource *manager_resource, |
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uint32_t id, struct wl_resource *input_device) |
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{ |
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struct wlsc_input_device *device = input_device->data; |
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struct wl_resource *resource; |
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resource = |
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wl_client_add_object(client, &wl_data_device_interface, |
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&data_device_interface, id, device); |
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wl_list_insert(&device->drag_resource_list, &resource->link); |
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resource->destroy = unbind_data_device; |
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} |
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static const struct wl_data_device_manager_interface manager_interface = { |
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create_data_source, |
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get_data_device |
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}; |
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static void |
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bind_manager(struct wl_client *client, |
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void *data, uint32_t version, uint32_t id) |
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{ |
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wl_client_add_object(client, &wl_data_device_manager_interface, |
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&manager_interface, id, NULL); |
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} |
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WL_EXPORT void |
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wlsc_data_device_set_keyboard_focus(struct wlsc_input_device *device) |
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{ |
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struct wl_resource *data_device, *focus, *offer; |
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struct wlsc_data_source *source; |
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focus = device->input_device.keyboard_focus_resource; |
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if (!focus) |
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return; |
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data_device = find_resource(&device->drag_resource_list, |
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focus->client); |
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if (!data_device) |
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return; |
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source = device->selection_data_source; |
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if (source) { |
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offer = wlsc_data_source_send_offer(source, data_device); |
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wl_resource_post_event(data_device, |
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WL_DATA_DEVICE_SELECTION, offer); |
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} |
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} |
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WL_EXPORT int |
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wlsc_data_device_manager_init(struct wlsc_compositor *compositor) |
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{ |
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if (wl_display_add_global(compositor->wl_display, |
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&wl_data_device_manager_interface, |
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NULL, bind_manager) == NULL) |
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return -1; |
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return 0; |
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} |
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