mutter/src/wayland/meta-wayland-data-device.c
Giovanni Campagna c0e7f6d9bf wayland: remove some wl_signal usage
It was a left-over from the initial code import from weston.

https://bugzilla.gnome.org/show_bug.cgi?id=707863
2013-09-16 14:51:13 +02:00

578 lines
17 KiB
C

/*
* 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.
*/
/* The file is based on src/data-device.c from Weston */
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <glib.h>
#include "meta-wayland-data-device.h"
#include "meta-wayland-seat.h"
#include "meta-wayland-pointer.h"
#include "meta-wayland-private.h"
static void
data_offer_accept (struct wl_client *client,
struct wl_resource *resource,
guint32 serial,
const char *mime_type)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
/* 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)
offer->source->accept (offer->source, serial, mime_type);
}
static void
data_offer_receive (struct wl_client *client, struct wl_resource *resource,
const char *mime_type, int32_t fd)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
if (offer->source)
offer->source->send (offer->source, mime_type, fd);
else
close (fd);
}
static void
data_offer_destroy (struct wl_client *client, struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static const struct wl_data_offer_interface data_offer_interface = {
data_offer_accept,
data_offer_receive,
data_offer_destroy,
};
static void
destroy_data_offer (struct wl_resource *resource)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
if (offer->source)
wl_list_remove (&offer->source_destroy_listener.link);
free (offer);
}
static void
destroy_offer_data_source (struct wl_listener *listener, void *data)
{
MetaWaylandDataOffer *offer;
offer = wl_container_of (listener, offer, source_destroy_listener);
offer->source = NULL;
}
static struct wl_resource *
meta_wayland_data_source_send_offer (MetaWaylandDataSource *source,
struct wl_resource *target)
{
MetaWaylandDataOffer *offer;
char **p;
offer = malloc (sizeof *offer);
if (offer == NULL)
return NULL;
offer->source = source;
offer->source_destroy_listener.notify = destroy_offer_data_source;
offer->resource = wl_resource_create (wl_resource_get_client (target),
&wl_data_offer_interface,
MIN (META_WL_DATA_OFFER_VERSION,
wl_resource_get_version (target)), 0);
wl_resource_set_implementation (offer->resource, &data_offer_interface,
offer, destroy_data_offer);
wl_resource_add_destroy_listener (source->resource,
&offer->source_destroy_listener);
wl_data_device_send_data_offer (target, offer->resource);
wl_array_for_each (p, &source->mime_types)
wl_data_offer_send_offer (offer->resource, *p);
return offer->resource;
}
static void
data_source_offer (struct wl_client *client,
struct wl_resource *resource, const char *type)
{
MetaWaylandDataSource *source = wl_resource_get_user_data (resource);
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);
}
static struct wl_data_source_interface data_source_interface = {
data_source_offer,
data_source_destroy
};
typedef struct {
MetaWaylandPointerGrab generic;
MetaWaylandSeat *seat;
struct wl_client *drag_client;
MetaWaylandSurface *drag_focus;
struct wl_resource *drag_focus_data_device;
struct wl_listener drag_focus_listener;
MetaWaylandSurface *drag_surface;
struct wl_listener drag_icon_listener;
MetaWaylandDataSource *drag_data_source;
struct wl_listener drag_data_source_listener;
} MetaWaylandDragGrab;
static void
destroy_drag_focus (struct wl_listener *listener, void *data)
{
MetaWaylandDragGrab *grab = wl_container_of (listener, grab, drag_focus_listener);
grab->drag_focus_data_device = NULL;
}
static void
drag_grab_focus (MetaWaylandPointerGrab *grab,
MetaWaylandSurface *surface,
const ClutterEvent *event)
{
MetaWaylandDragGrab *drag_grab = (MetaWaylandDragGrab*) grab;
MetaWaylandSeat *seat = drag_grab->seat;
struct wl_resource *resource, *offer = NULL;
struct wl_display *display;
guint32 serial;
wl_fixed_t sx, sy;
if (drag_grab->drag_focus == surface)
return;
if (drag_grab->drag_focus_data_device)
{
wl_data_device_send_leave (drag_grab->drag_focus_data_device);
wl_list_remove (&drag_grab->drag_focus_listener.link);
drag_grab->drag_focus_data_device = NULL;
drag_grab->drag_focus = NULL;
}
if (!surface)
return;
if (!drag_grab->drag_data_source &&
wl_resource_get_client (surface->resource) != drag_grab->drag_client)
return;
resource =
wl_resource_find_for_client (&seat->data_device_resource_list,
wl_resource_get_client (surface->resource));
if (!resource)
return;
display = wl_client_get_display (wl_resource_get_client (resource));
serial = wl_display_next_serial (display);
if (drag_grab->drag_data_source)
offer = meta_wayland_data_source_send_offer (drag_grab->drag_data_source,
resource);
meta_wayland_pointer_get_relative_coordinates (grab->pointer, surface, &sx, &sy);
wl_data_device_send_enter (resource, serial, surface->resource,
sx, sy, offer);
drag_grab->drag_focus = surface;
drag_grab->drag_focus_data_device = resource;
drag_grab->drag_focus_listener.notify = destroy_drag_focus;
wl_resource_add_destroy_listener (resource, &drag_grab->drag_focus_listener);
}
static void
drag_grab_motion (MetaWaylandPointerGrab *grab,
const ClutterEvent *event)
{
MetaWaylandDragGrab *drag_grab = (MetaWaylandDragGrab*) grab;
wl_fixed_t sx, sy;
if (drag_grab->drag_focus_data_device)
{
meta_wayland_pointer_get_relative_coordinates (grab->pointer,
drag_grab->drag_focus,
&sx, &sy);
wl_data_device_send_motion (drag_grab->drag_focus_data_device,
clutter_event_get_time (event),
sx, sy);
}
}
static void
data_device_end_drag_grab (MetaWaylandDragGrab *drag_grab)
{
if (drag_grab->drag_surface)
{
drag_grab->drag_surface = NULL;
wl_list_remove (&drag_grab->drag_icon_listener.link);
}
if (drag_grab->drag_data_source)
wl_list_remove (&drag_grab->drag_data_source_listener.link);
drag_grab_focus (&drag_grab->generic, NULL, NULL);
meta_wayland_pointer_end_grab (drag_grab->generic.pointer);
g_slice_free (MetaWaylandDragGrab, drag_grab);
}
static void
drag_grab_button (MetaWaylandPointerGrab *grab,
const ClutterEvent *event)
{
MetaWaylandDragGrab *drag_grab = (MetaWaylandDragGrab*) grab;
MetaWaylandSeat *seat = drag_grab->seat;
ClutterEventType event_type = clutter_event_type (event);
if (drag_grab->drag_focus_data_device &&
drag_grab->generic.pointer->grab_button == clutter_event_get_button (event) &&
event_type == CLUTTER_BUTTON_RELEASE)
wl_data_device_send_drop (drag_grab->drag_focus_data_device);
if (seat->pointer.button_count == 0 &&
event_type == CLUTTER_BUTTON_RELEASE)
data_device_end_drag_grab (drag_grab);
}
static const MetaWaylandPointerGrabInterface drag_grab_interface = {
drag_grab_focus,
drag_grab_motion,
drag_grab_button,
};
static void
destroy_data_device_source (struct wl_listener *listener, void *data)
{
MetaWaylandDragGrab *drag_grab =
wl_container_of (listener, drag_grab, drag_data_source_listener);
drag_grab->drag_data_source = NULL;
data_device_end_drag_grab (drag_grab);
}
static void
destroy_data_device_icon (struct wl_listener *listener, void *data)
{
MetaWaylandDragGrab *drag_grab =
wl_container_of (listener, drag_grab, drag_data_source_listener);
drag_grab->drag_surface = NULL;
}
static void
data_device_start_drag (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *source_resource,
struct wl_resource *origin_resource,
struct wl_resource *icon_resource, guint32 serial)
{
MetaWaylandSeat *seat = wl_resource_get_user_data (resource);
MetaWaylandDragGrab *drag_grab;
/* FIXME: Check that client has implicit grab on the origin
* surface that matches the given time. */
/* FIXME: Check that the data source type array isn't empty. */
if (seat->pointer.grab != &seat->pointer.default_grab)
return;
drag_grab = g_slice_new0 (MetaWaylandDragGrab);
drag_grab->generic.interface = &drag_grab_interface;
drag_grab->generic.pointer = &seat->pointer;
drag_grab->drag_client = client;
if (source_resource)
{
drag_grab->drag_data_source = wl_resource_get_user_data (source_resource);
drag_grab->drag_data_source_listener.notify = destroy_data_device_source;
wl_resource_add_destroy_listener (source_resource,
&drag_grab->drag_data_source_listener);
}
if (icon_resource)
{
drag_grab->drag_surface = wl_resource_get_user_data (icon_resource);
drag_grab->drag_icon_listener.notify = destroy_data_device_icon;
wl_resource_add_destroy_listener (icon_resource,
&drag_grab->drag_icon_listener);
}
meta_wayland_pointer_set_focus (&seat->pointer, NULL);
meta_wayland_pointer_start_grab (&seat->pointer, (MetaWaylandPointerGrab*)drag_grab);
}
static void
destroy_selection_data_source (struct wl_listener *listener, void *data)
{
MetaWaylandSeat *seat =
wl_container_of (listener, seat, selection_data_source_listener);
struct wl_resource *data_device;
struct wl_resource *focus = NULL;
seat->selection_data_source = NULL;
focus = seat->keyboard.focus_resource;
if (focus)
{
data_device =
wl_resource_find_for_client (&seat->data_device_resource_list,
wl_resource_get_client (focus));
if (data_device)
wl_data_device_send_selection (data_device, NULL);
}
}
void
meta_wayland_seat_set_selection (MetaWaylandSeat *seat,
MetaWaylandDataSource *source,
guint32 serial)
{
struct wl_resource *data_device, *offer;
struct wl_resource *focus = NULL;
if (seat->selection_data_source &&
seat->selection_serial - serial < UINT32_MAX / 2)
return;
if (seat->selection_data_source)
{
seat->selection_data_source->cancel (seat->selection_data_source);
wl_list_remove (&seat->selection_data_source_listener.link);
seat->selection_data_source = NULL;
}
seat->selection_data_source = source;
seat->selection_serial = serial;
focus = seat->keyboard.focus_resource;
if (focus)
{
data_device =
wl_resource_find_for_client (&seat->data_device_resource_list,
wl_resource_get_client (focus));
if (data_device && source)
{
offer =
meta_wayland_data_source_send_offer (seat->selection_data_source,
data_device);
wl_data_device_send_selection (data_device, offer);
}
else if (data_device)
{
wl_data_device_send_selection (data_device, NULL);
}
}
if (source)
{
seat->selection_data_source_listener.notify =
destroy_selection_data_source;
wl_resource_add_destroy_listener (source->resource,
&seat->selection_data_source_listener);
}
}
static void
data_device_set_selection (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *source_resource,
guint32 serial)
{
if (!source_resource)
return;
/* FIXME: Store serial and check against incoming serial here. */
meta_wayland_seat_set_selection (wl_resource_get_user_data (resource),
wl_resource_get_user_data (source_resource),
serial);
}
static const struct wl_data_device_interface data_device_interface = {
data_device_start_drag,
data_device_set_selection,
};
static void
destroy_data_source (struct wl_resource *resource)
{
MetaWaylandDataSource *source = wl_container_of (resource, source, resource);
char **p;
wl_array_for_each (p, &source->mime_types) free (*p);
wl_array_release (&source->mime_types);
}
static void
client_source_accept (MetaWaylandDataSource *source,
guint32 time, const char *mime_type)
{
wl_data_source_send_target (source->resource, mime_type);
}
static void
client_source_send (MetaWaylandDataSource *source,
const char *mime_type, int32_t fd)
{
wl_data_source_send_send (source->resource, mime_type, fd);
close (fd);
}
static void
client_source_cancel (MetaWaylandDataSource *source)
{
wl_data_source_send_cancelled (source->resource);
}
static void
create_data_source (struct wl_client *client,
struct wl_resource *resource, guint32 id)
{
MetaWaylandDataSource *source;
source = malloc (sizeof *source);
if (source == NULL)
{
wl_resource_post_no_memory (resource);
return;
}
source->resource = wl_resource_create (client, &wl_data_source_interface,
MIN (META_WL_DATA_SOURCE_VERSION,
wl_resource_get_version (resource)), id);
wl_resource_set_implementation (source->resource, &data_source_interface,
source, destroy_data_source);
source->accept = client_source_accept;
source->send = client_source_send;
source->cancel = client_source_cancel;
wl_array_init (&source->mime_types);
}
static void
unbind_data_device (struct wl_resource *resource)
{
wl_list_remove (wl_resource_get_link (resource));
}
static void
get_data_device (struct wl_client *client,
struct wl_resource *manager_resource,
guint32 id, struct wl_resource *seat_resource)
{
MetaWaylandSeat *seat = wl_resource_get_user_data (seat_resource);
struct wl_resource *resource;
resource = wl_resource_create (client, &wl_data_device_interface,
MIN (META_WL_DATA_DEVICE_VERSION,
wl_resource_get_version (manager_resource)), id);
wl_resource_set_implementation (resource, &data_device_interface, seat, unbind_data_device);
wl_list_insert (&seat->data_device_resource_list, wl_resource_get_link (resource));
}
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, guint32 version, guint32 id)
{
struct wl_resource *resource;
resource = wl_resource_create (client, &wl_data_device_manager_interface,
MIN (version, META_WL_DATA_DEVICE_MANAGER_VERSION), id);
wl_resource_set_implementation (resource, &manager_interface, NULL, NULL);
}
void
meta_wayland_data_device_set_keyboard_focus (MetaWaylandSeat *seat)
{
struct wl_resource *data_device, *focus, *offer;
MetaWaylandDataSource *source;
focus = seat->keyboard.focus_resource;
if (!focus)
return;
data_device = wl_resource_find_for_client (&seat->data_device_resource_list,
wl_resource_get_client (focus));
if (!data_device)
return;
source = seat->selection_data_source;
if (source)
{
offer = meta_wayland_data_source_send_offer (source, data_device);
wl_data_device_send_selection (data_device, offer);
}
}
int
meta_wayland_data_device_manager_init (struct wl_display *display)
{
if (wl_global_create (display,
&wl_data_device_manager_interface,
META_WL_DATA_DEVICE_MANAGER_VERSION,
NULL, bind_manager) == NULL)
return -1;
return 0;
}