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634f512bb0
mutter/src/wayland/meta-wayland-data-device.c
Carlos Garnacho 634f512bb0 wayland: Integrate with MetaSelection 
Make MetaWaylandDataDevice use MetaSelection and MetaSelectionSource to
handle primary/clipboard/dnd.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/320
2019-05-02 16:31:45 +02:00

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/*
* 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 "wayland/meta-wayland-data-device.h"
#include "wayland/meta-wayland-data-device-private.h"
#include <gio/gunixoutputstream.h>
#include <glib-unix.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "compositor/meta-dnd-actor-private.h"
#include "wayland/meta-selection-source-wayland-private.h"
#include "wayland/meta-wayland-dnd-surface.h"
#include "wayland/meta-wayland-pointer.h"
#include "wayland/meta-wayland-private.h"
#include "wayland/meta-wayland-seat.h"
#include "gtk-primary-selection-server-protocol.h"
#define ROOTWINDOW_DROP_MIME "application/x-rootwindow-drop"
#define ALL_ACTIONS (WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY | \
WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE | \
WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK)
struct _MetaWaylandDataOffer
{
struct wl_resource *resource;
MetaWaylandDataSource *source;
struct wl_listener source_destroy_listener;
gboolean accepted;
gboolean action_sent;
uint32_t dnd_actions;
enum wl_data_device_manager_dnd_action preferred_dnd_action;
};
typedef struct _MetaWaylandDataSourcePrivate
{
MetaWaylandDataOffer *offer;
struct wl_array mime_types;
gboolean has_target;
uint32_t dnd_actions;
enum wl_data_device_manager_dnd_action user_dnd_action;
enum wl_data_device_manager_dnd_action current_dnd_action;
MetaWaylandSeat *seat;
guint actions_set : 1;
guint in_ask : 1;
} MetaWaylandDataSourcePrivate;
typedef struct _MetaWaylandDataSourceWayland
{
MetaWaylandDataSource parent;
struct wl_resource *resource;
} MetaWaylandDataSourceWayland;
typedef struct _MetaWaylandDataSourcePrimary
{
MetaWaylandDataSourceWayland parent;
struct wl_resource *resource;
} MetaWaylandDataSourcePrimary;
G_DEFINE_TYPE_WITH_PRIVATE (MetaWaylandDataSource, meta_wayland_data_source,
G_TYPE_OBJECT);
G_DEFINE_TYPE (MetaWaylandDataSourceWayland, meta_wayland_data_source_wayland,
META_TYPE_WAYLAND_DATA_SOURCE);
G_DEFINE_TYPE (MetaWaylandDataSourcePrimary, meta_wayland_data_source_primary,
META_TYPE_WAYLAND_DATA_SOURCE_WAYLAND);
static MetaWaylandDataSource *
meta_wayland_data_source_wayland_new (struct wl_resource *resource);
static MetaWaylandDataSource *
meta_wayland_data_source_primary_new (struct wl_resource *resource);
static void
drag_grab_data_source_destroyed (gpointer data, GObject *where_the_object_was);
static struct wl_resource * create_and_send_clipboard_offer (MetaWaylandDataDevice *data_device,
struct wl_resource *target);
static struct wl_resource * create_and_send_primary_offer (MetaWaylandDataDevice *data_device,
struct wl_resource *target);
static void
unbind_resource (struct wl_resource *resource)
{
wl_list_remove (wl_resource_get_link (resource));
}
static gboolean
meta_wayland_source_get_in_ask (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
return priv->in_ask;
}
static void
meta_wayland_source_update_in_ask (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
priv->in_ask =
priv->current_dnd_action == WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK;
}
static enum wl_data_device_manager_dnd_action
data_offer_choose_action (MetaWaylandDataOffer *offer)
{
MetaWaylandDataSource *source = offer->source;
uint32_t actions, user_action, available_actions;
actions = meta_wayland_data_source_get_actions (source);
user_action = meta_wayland_data_source_get_user_action (source);
available_actions = actions & offer->dnd_actions;
if (!available_actions)
return WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE;
/* If the user is forcing an action, go for it */
if ((user_action & available_actions) != 0)
return user_action;
/* If the dest side has a preferred DnD action, use it */
if ((offer->preferred_dnd_action & available_actions) != 0)
return offer->preferred_dnd_action;
/* Use the first found action, in bit order */
return 1 << (ffs (available_actions) - 1);
}
static void
data_offer_update_action (MetaWaylandDataOffer *offer)
{
enum wl_data_device_manager_dnd_action current_action, action;
MetaWaylandDataSource *source;
if (!offer->source)
return;
source = offer->source;
current_action = meta_wayland_data_source_get_current_action (source);
action = data_offer_choose_action (offer);
if (current_action == action)
return;
meta_wayland_data_source_set_current_action (source, action);
if (!meta_wayland_source_get_in_ask (source) &&
wl_resource_get_version (offer->resource) >=
WL_DATA_OFFER_ACTION_SINCE_VERSION)
{
wl_data_offer_send_action (offer->resource, action);
offer->action_sent = TRUE;
}
}
static void
meta_wayland_data_source_target (MetaWaylandDataSource *source,
const char *mime_type)
{
if (META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->target)
META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->target (source, mime_type);
}
void
meta_wayland_data_source_send (MetaWaylandDataSource *source,
const char *mime_type,
int fd)
{
META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->send (source, mime_type, fd);
}
gboolean
meta_wayland_data_source_has_target (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
return priv->has_target;
}
static void
meta_wayland_data_source_set_seat (MetaWaylandDataSource *source,
MetaWaylandSeat *seat)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
priv->seat = seat;
}
static MetaWaylandSeat *
meta_wayland_data_source_get_seat (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
return priv->seat;
}
void
meta_wayland_data_source_set_has_target (MetaWaylandDataSource *source,
gboolean has_target)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
priv->has_target = has_target;
}
struct wl_array *
meta_wayland_data_source_get_mime_types (const MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private ((MetaWaylandDataSource *)source);
return &priv->mime_types;
}
static void
meta_wayland_data_source_cancel (MetaWaylandDataSource *source)
{
META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->cancel (source);
}
uint32_t
meta_wayland_data_source_get_actions (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
return priv->dnd_actions;
}
enum wl_data_device_manager_dnd_action
meta_wayland_data_source_get_user_action (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
if (!priv->seat)
return WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE;
return priv->user_dnd_action;
}
enum wl_data_device_manager_dnd_action
meta_wayland_data_source_get_current_action (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
return priv->current_dnd_action;
}
static void
meta_wayland_data_source_set_current_offer (MetaWaylandDataSource *source,
MetaWaylandDataOffer *offer)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
priv->offer = offer;
}
static MetaWaylandDataOffer *
meta_wayland_data_source_get_current_offer (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
return priv->offer;
}
void
meta_wayland_data_source_set_current_action (MetaWaylandDataSource *source,
enum wl_data_device_manager_dnd_action action)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
if (priv->current_dnd_action == action)
return;
priv->current_dnd_action = action;
if (!meta_wayland_source_get_in_ask (source))
META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->action (source, action);
}
void
meta_wayland_data_source_set_actions (MetaWaylandDataSource *source,
uint32_t dnd_actions)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
priv->dnd_actions = dnd_actions;
priv->actions_set = TRUE;
}
static void
meta_wayland_data_source_set_user_action (MetaWaylandDataSource *source,
enum wl_data_device_manager_dnd_action action)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
MetaWaylandDataOffer *offer;
if (priv->user_dnd_action == action)
return;
priv->user_dnd_action = action;
offer = meta_wayland_data_source_get_current_offer (source);
if (offer)
data_offer_update_action (offer);
}
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)
{
meta_wayland_data_source_target (offer->source, mime_type);
meta_wayland_data_source_set_has_target (offer->source,
mime_type != NULL);
}
offer->accepted = mime_type != NULL;
}
static void
transfer_cb (MetaSelection *selection,
GAsyncResult *res,
GOutputStream *stream)
{
GError *error = NULL;
if (!meta_selection_transfer_finish (selection, res, &error))
{
g_warning ("Could not fetch selection data: %s", error->message);
g_error_free (error);
}
g_output_stream_close (stream, NULL, NULL);
}
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);
MetaDisplay *display = meta_get_display ();
MetaSelectionType selection_type;
GList *mime_types;
gboolean found;
if (offer->dnd_actions != 0)
selection_type = META_SELECTION_DND;
else
selection_type = META_SELECTION_CLIPBOARD;
mime_types = meta_selection_get_mimetypes (meta_display_get_selection (display),
selection_type);
found = g_list_find_custom (mime_types, mime_type, (GCompareFunc) g_strcmp0) != NULL;
g_list_free_full (mime_types, g_free);
if (found)
{
GOutputStream *stream;
stream = g_unix_output_stream_new (fd, TRUE);
meta_selection_transfer_async (meta_display_get_selection (display),
selection_type,
mime_type,
-1,
stream,
NULL,
(GAsyncReadyCallback) transfer_cb,
stream);
}
else
{
close (fd);
}
}
static void
default_destructor (struct wl_client *client,
struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static void
data_offer_finish (struct wl_client *client,
struct wl_resource *resource)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
enum wl_data_device_manager_dnd_action current_action;
if (!offer->source ||
offer != meta_wayland_data_source_get_current_offer (offer->source))
return;
if (!offer->accepted || !offer->action_sent)
{
wl_resource_post_error (offer->resource,
WL_DATA_OFFER_ERROR_INVALID_FINISH,
"premature finish request");
return;
}
current_action = meta_wayland_data_source_get_current_action (offer->source);
if (current_action == WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE ||
current_action == WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK)
{
wl_resource_post_error (offer->resource,
WL_DATA_OFFER_ERROR_INVALID_OFFER,
"offer finished with an invalid action");
return;
}
meta_wayland_data_source_notify_finish (offer->source);
}
static void
data_offer_set_actions (struct wl_client *client,
struct wl_resource *resource,
uint32_t dnd_actions,
uint32_t preferred_action)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
if (dnd_actions & ~(ALL_ACTIONS))
{
wl_resource_post_error (offer->resource,
WL_DATA_OFFER_ERROR_INVALID_ACTION_MASK,
"invalid actions mask %x", dnd_actions);
return;
}
if (preferred_action &&
(!(preferred_action & dnd_actions) ||
__builtin_popcount (preferred_action) > 1))
{
wl_resource_post_error (offer->resource,
WL_DATA_OFFER_ERROR_INVALID_ACTION,
"invalid action %x", preferred_action);
return;
}
offer->dnd_actions = dnd_actions;
offer->preferred_dnd_action = preferred_action;
data_offer_update_action (offer);
}
static const struct wl_data_offer_interface data_offer_interface = {
data_offer_accept,
data_offer_receive,
default_destructor,
data_offer_finish,
data_offer_set_actions,
};
static void
primary_offer_receive (struct wl_client *client, struct wl_resource *resource,
const char *mime_type, int32_t fd)
{
MetaDisplay *display = meta_get_display ();
GOutputStream *stream;
GList *mime_types;
gboolean found;
mime_types = meta_selection_get_mimetypes (meta_display_get_selection (display),
META_SELECTION_CLIPBOARD);
found = g_list_find_custom (mime_types, mime_type, (GCompareFunc) g_strcmp0) != NULL;
g_list_free_full (mime_types, g_free);
if (!found)
{
close (fd);
return;
}
stream = g_unix_output_stream_new (fd, TRUE);
meta_selection_transfer_async (meta_display_get_selection (display),
META_SELECTION_PRIMARY,
mime_type,
-1,
stream,
NULL,
(GAsyncReadyCallback) transfer_cb,
stream);
}
static const struct gtk_primary_selection_offer_interface primary_offer_interface = {
primary_offer_receive,
default_destructor,
};
static void
meta_wayland_data_source_notify_drop_performed (MetaWaylandDataSource *source)
{
META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->drop_performed (source);
}
void
meta_wayland_data_source_notify_finish (MetaWaylandDataSource *source)
{
META_WAYLAND_DATA_SOURCE_GET_CLASS (source)->drag_finished (source);
}
static void
destroy_data_offer (struct wl_resource *resource)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
MetaWaylandSeat *seat;
if (offer->source)
{
seat = meta_wayland_data_source_get_seat (offer->source);
if (offer == meta_wayland_data_source_get_current_offer (offer->source))
{
if (seat && seat->data_device.dnd_data_source == offer->source &&
wl_resource_get_version (offer->resource) <
WL_DATA_OFFER_ACTION_SINCE_VERSION)
meta_wayland_data_source_notify_finish (offer->source);
else
{
meta_wayland_data_source_cancel (offer->source);
meta_wayland_data_source_set_current_offer (offer->source, NULL);
}
}
g_object_remove_weak_pointer (G_OBJECT (offer->source),
(gpointer *)&offer->source);
offer->source = NULL;
}
meta_display_sync_wayland_input_focus (meta_get_display ());
g_slice_free (MetaWaylandDataOffer, offer);
}
static void
destroy_primary_offer (struct wl_resource *resource)
{
MetaWaylandDataOffer *offer = wl_resource_get_user_data (resource);
if (offer->source)
{
if (offer == meta_wayland_data_source_get_current_offer (offer->source))
{
meta_wayland_data_source_cancel (offer->source);
meta_wayland_data_source_set_current_offer (offer->source, NULL);
}
g_object_remove_weak_pointer (G_OBJECT (offer->source),
(gpointer *)&offer->source);
offer->source = NULL;
}
meta_display_sync_wayland_input_focus (meta_get_display ());
g_slice_free (MetaWaylandDataOffer, offer);
}
static struct wl_resource *
meta_wayland_data_source_send_offer (MetaWaylandDataSource *source,
struct wl_resource *target)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
MetaWaylandDataOffer *offer = g_slice_new0 (MetaWaylandDataOffer);
char **p;
offer->source = source;
g_object_add_weak_pointer (G_OBJECT (source), (gpointer *)&offer->source);
offer->resource = wl_resource_create (wl_resource_get_client (target),
&wl_data_offer_interface,
wl_resource_get_version (target), 0);
wl_resource_set_implementation (offer->resource,
&data_offer_interface,
offer,
destroy_data_offer);
wl_data_device_send_data_offer (target, offer->resource);
wl_array_for_each (p, &priv->mime_types)
wl_data_offer_send_offer (offer->resource, *p);
data_offer_update_action (offer);
meta_wayland_data_source_set_current_offer (source, offer);
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);
if (!meta_wayland_data_source_add_mime_type (source, type))
wl_resource_post_no_memory (resource);
}
static void
data_source_set_actions (struct wl_client *client,
struct wl_resource *resource,
uint32_t dnd_actions)
{
MetaWaylandDataSource *source = wl_resource_get_user_data (resource);
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
if (priv->actions_set)
{
wl_resource_post_error (source_wayland->resource,
WL_DATA_SOURCE_ERROR_INVALID_ACTION_MASK,
"cannot set actions more than once");
return;
}
if (dnd_actions & ~(ALL_ACTIONS))
{
wl_resource_post_error (source_wayland->resource,
WL_DATA_SOURCE_ERROR_INVALID_ACTION_MASK,
"invalid actions mask %x", dnd_actions);
return;
}
if (meta_wayland_data_source_get_seat (source))
{
wl_resource_post_error (source_wayland->resource,
WL_DATA_SOURCE_ERROR_INVALID_ACTION_MASK,
"invalid action change after "
"wl_data_device.start_drag");
return;
}
meta_wayland_data_source_set_actions (source, dnd_actions);
}
static struct wl_data_source_interface data_source_interface = {
data_source_offer,
default_destructor,
data_source_set_actions
};
static void
primary_source_offer (struct wl_client *client,
struct wl_resource *resource,
const char *type)
{
MetaWaylandDataSource *source = wl_resource_get_user_data (resource);
if (!meta_wayland_data_source_add_mime_type (source, type))
wl_resource_post_no_memory (resource);
}
static struct gtk_primary_selection_source_interface primary_source_interface = {
primary_source_offer,
default_destructor,
};
struct _MetaWaylandDragGrab {
MetaWaylandPointerGrab generic;
MetaWaylandKeyboardGrab keyboard_grab;
MetaWaylandSeat *seat;
struct wl_client *drag_client;
MetaWaylandSurface *drag_focus;
gulong drag_focus_destroy_handler_id;
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;
ClutterActor *feedback_actor;
MetaWaylandSurface *drag_origin;
struct wl_listener drag_origin_listener;
int drag_start_x, drag_start_y;
ClutterModifierType buttons;
guint need_initial_focus : 1;
};
static void
set_selection_source (MetaWaylandDataDevice *data_device,
MetaSelectionType selection_type,
MetaSelectionSource *selection_source)
{
MetaDisplay *display = meta_get_display ();
meta_selection_set_owner (meta_display_get_selection (display),
selection_type, selection_source);
g_set_object (&data_device->owners[selection_type], selection_source);
}
static void
unset_selection_source (MetaWaylandDataDevice *data_device,
MetaSelectionType selection_type)
{
MetaDisplay *display = meta_get_display ();
if (!data_device->owners[selection_type])
return;
meta_selection_unset_owner (meta_display_get_selection (display),
selection_type,
data_device->owners[selection_type]);
g_clear_object (&data_device->owners[selection_type]);
}
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;
g_signal_handler_disconnect (grab->drag_focus,
grab->drag_focus_destroy_handler_id);
grab->drag_focus = NULL;
}
static void
on_drag_focus_destroyed (MetaWaylandSurface *surface,
MetaWaylandDragGrab *grab)
{
meta_wayland_surface_drag_dest_focus_out (grab->drag_focus);
grab->drag_focus = NULL;
}
static void
meta_wayland_drag_grab_set_source (MetaWaylandDragGrab *drag_grab,
MetaWaylandDataSource *source)
{
if (drag_grab->drag_data_source)
g_object_weak_unref (G_OBJECT (drag_grab->drag_data_source),
drag_grab_data_source_destroyed,
drag_grab);
drag_grab->drag_data_source = source;
if (source)
g_object_weak_ref (G_OBJECT (source),
drag_grab_data_source_destroyed,
drag_grab);
}
static void
meta_wayland_drag_source_fake_acceptance (MetaWaylandDataSource *source,
const gchar *mimetype)
{
uint32_t actions, user_action, action = 0;
actions = meta_wayland_data_source_get_actions (source);
user_action = meta_wayland_data_source_get_user_action (source);
/* Pick a suitable action */
if ((user_action & actions) != 0)
action = user_action;
else if (actions != 0)
action = 1 << (ffs (actions) - 1);
/* Bail out if there is none, source didn't cooperate */
if (action == 0)
return;
meta_wayland_data_source_target (source, mimetype);
meta_wayland_data_source_set_current_action (source, action);
meta_wayland_data_source_set_has_target (source, TRUE);
}
void
meta_wayland_drag_grab_set_focus (MetaWaylandDragGrab *drag_grab,
MetaWaylandSurface *surface)
{
MetaWaylandSeat *seat = drag_grab->seat;
MetaWaylandDataSource *source = drag_grab->drag_data_source;
struct wl_client *client;
struct wl_resource *data_device_resource, *offer = NULL;
if (!drag_grab->need_initial_focus &&
drag_grab->drag_focus == surface)
return;
drag_grab->need_initial_focus = FALSE;
if (drag_grab->drag_focus)
{
meta_wayland_surface_drag_dest_focus_out (drag_grab->drag_focus);
g_signal_handler_disconnect (drag_grab->drag_focus,
drag_grab->drag_focus_destroy_handler_id);
drag_grab->drag_focus = NULL;
}
if (source)
meta_wayland_data_source_set_current_offer (source, NULL);
if (!surface && source &&
meta_wayland_data_source_has_mime_type (source, ROOTWINDOW_DROP_MIME))
meta_wayland_drag_source_fake_acceptance (source, ROOTWINDOW_DROP_MIME);
else if (source)
meta_wayland_data_source_target (source, NULL);
if (!surface)
return;
if (!source &&
wl_resource_get_client (surface->resource) != drag_grab->drag_client)
return;
client = wl_resource_get_client (surface->resource);
data_device_resource = wl_resource_find_for_client (&seat->data_device.resource_list, client);
if (source && data_device_resource)
offer = meta_wayland_data_source_send_offer (source, data_device_resource);
drag_grab->drag_focus = surface;
drag_grab->drag_focus_destroy_handler_id =
g_signal_connect (surface, "destroy",
G_CALLBACK (on_drag_focus_destroyed),
drag_grab);
drag_grab->drag_focus_data_device = data_device_resource;
meta_wayland_surface_drag_dest_focus_in (drag_grab->drag_focus,
offer ? wl_resource_get_user_data (offer) : NULL);
}
MetaWaylandSurface *
meta_wayland_drag_grab_get_focus (MetaWaylandDragGrab *drag_grab)
{
return drag_grab->drag_focus;
}
void
meta_wayland_drag_grab_update_feedback_actor (MetaWaylandDragGrab *drag_grab,
ClutterEvent *event)
{
meta_feedback_actor_update (META_FEEDBACK_ACTOR (drag_grab->feedback_actor),
event);
}
static void
drag_grab_focus (MetaWaylandPointerGrab *grab,
MetaWaylandSurface *surface)
{
MetaWaylandDragGrab *drag_grab = (MetaWaylandDragGrab*) grab;
meta_wayland_drag_grab_set_focus (drag_grab, surface);
}
static void
data_source_update_user_dnd_action (MetaWaylandDataSource *source,
ClutterModifierType modifiers)
{
enum wl_data_device_manager_dnd_action user_dnd_action = 0;
if (modifiers & CLUTTER_SHIFT_MASK)
user_dnd_action = WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE;
else if (modifiers & CLUTTER_CONTROL_MASK)
user_dnd_action = WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY;
else if (modifiers & (CLUTTER_MOD1_MASK | CLUTTER_BUTTON2_MASK))
user_dnd_action = WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK;
meta_wayland_data_source_set_user_action (source, user_dnd_action);
}
static void
drag_grab_motion (MetaWaylandPointerGrab *grab,
const ClutterEvent *event)
{
MetaWaylandDragGrab *drag_grab = (MetaWaylandDragGrab*) grab;
if (drag_grab->drag_focus)
meta_wayland_surface_drag_dest_motion (drag_grab->drag_focus, event);
if (drag_grab->drag_surface)
meta_feedback_actor_update (META_FEEDBACK_ACTOR (drag_grab->feedback_actor),
event);
}
static void
data_device_end_drag_grab (MetaWaylandDragGrab *drag_grab)
{
meta_wayland_drag_grab_set_focus (drag_grab, NULL);
if (drag_grab->drag_origin)
{
drag_grab->drag_origin = NULL;
wl_list_remove (&drag_grab->drag_origin_listener.link);
}
if (drag_grab->drag_surface)
{
drag_grab->drag_surface = NULL;
wl_list_remove (&drag_grab->drag_icon_listener.link);
}
meta_wayland_drag_grab_set_source (drag_grab, NULL);
if (drag_grab->feedback_actor)
{
clutter_actor_remove_all_children (drag_grab->feedback_actor);
clutter_actor_destroy (drag_grab->feedback_actor);
}
drag_grab->seat->data_device.current_grab = NULL;
/* There might be other grabs created in result to DnD actions like popups
* on "ask" actions, we must not reset those, only our own.
*/
if (drag_grab->generic.pointer->grab == (MetaWaylandPointerGrab *) drag_grab)
{
meta_wayland_pointer_end_grab (drag_grab->generic.pointer);
meta_wayland_keyboard_end_grab (drag_grab->keyboard_grab.keyboard);
}
g_slice_free (MetaWaylandDragGrab, drag_grab);
}
static gboolean
on_fake_read_hup (GIOChannel *channel,
GIOCondition condition,
gpointer data)
{
MetaWaylandDataSource *source = data;
meta_wayland_data_source_notify_finish (source);
g_io_channel_shutdown (channel, FALSE, NULL);
g_io_channel_unref (channel);
return G_SOURCE_REMOVE;
}
static void
meta_wayland_data_source_fake_read (MetaWaylandDataSource *source,
const gchar *mimetype)
{
GIOChannel *channel;
int p[2];
if (!g_unix_open_pipe (p, FD_CLOEXEC, NULL))
{
meta_wayland_data_source_notify_finish (source);
return;
}
if (!g_unix_set_fd_nonblocking (p[0], TRUE, NULL) ||
!g_unix_set_fd_nonblocking (p[1], TRUE, NULL))
{
meta_wayland_data_source_notify_finish (source);
close (p[0]);
close (p[1]);
return;
}
meta_wayland_data_source_send (source, mimetype, p[1]);
channel = g_io_channel_unix_new (p[0]);
g_io_add_watch (channel, G_IO_HUP, on_fake_read_hup, source);
}
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->generic.pointer->grab_button == clutter_event_get_button (event) &&
event_type == CLUTTER_BUTTON_RELEASE)
{
MetaWaylandDataSource *source = drag_grab->drag_data_source;
gboolean success;
if (drag_grab->drag_focus && source &&
meta_wayland_data_source_has_target (source) &&
meta_wayland_data_source_get_current_action (source))
{
/* Detach the data source from the grab, it's meant to live longer */
meta_wayland_drag_grab_set_source (drag_grab, NULL);
meta_wayland_data_source_set_seat (source, NULL);
meta_wayland_surface_drag_dest_drop (drag_grab->drag_focus);
meta_wayland_data_source_notify_drop_performed (source);
meta_wayland_source_update_in_ask (source);
success = TRUE;
}
else if (!drag_grab->drag_focus && source &&
meta_wayland_data_source_has_target (source) &&
meta_wayland_data_source_get_current_action (source) &&
meta_wayland_data_source_has_mime_type (source, ROOTWINDOW_DROP_MIME))
{
/* Perform a fake read, that will lead to notify_finish() being called */
meta_wayland_data_source_fake_read (source, ROOTWINDOW_DROP_MIME);
success = TRUE;
}
else
{
meta_wayland_data_source_cancel (source);
meta_wayland_data_source_set_current_offer (source, NULL);
meta_wayland_data_device_set_dnd_source (&seat->data_device, NULL);
unset_selection_source (&seat->data_device, META_SELECTION_DND);
success= FALSE;
}
/* Finish drag and let actor self-destruct */
meta_dnd_actor_drag_finish (META_DND_ACTOR (drag_grab->feedback_actor), success);
drag_grab->feedback_actor = NULL;
}
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 gboolean
keyboard_drag_grab_key (MetaWaylandKeyboardGrab *grab,
const ClutterEvent *event)
{
return FALSE;
}
static void
keyboard_drag_grab_modifiers (MetaWaylandKeyboardGrab *grab,
ClutterModifierType modifiers)
{
MetaWaylandDragGrab *drag_grab;
drag_grab = wl_container_of (grab, drag_grab, keyboard_grab);
/* The modifiers here just contain keyboard modifiers, mix it with the
* mouse button modifiers we got when starting the drag operation.
*/
modifiers |= drag_grab->buttons;
if (drag_grab->drag_data_source)
{
data_source_update_user_dnd_action (drag_grab->drag_data_source, modifiers);
if (drag_grab->drag_focus)
meta_wayland_surface_drag_dest_update (drag_grab->drag_focus);
}
}
static const MetaWaylandKeyboardGrabInterface keyboard_drag_grab_interface = {
keyboard_drag_grab_key,
keyboard_drag_grab_modifiers
};
static void
destroy_data_device_origin (struct wl_listener *listener, void *data)
{
MetaWaylandDragGrab *drag_grab =
wl_container_of (listener, drag_grab, drag_origin_listener);
drag_grab->drag_origin = NULL;
meta_wayland_data_device_set_dnd_source (&drag_grab->seat->data_device, NULL);
unset_selection_source (&drag_grab->seat->data_device, META_SELECTION_DND);
data_device_end_drag_grab (drag_grab);
}
static void
drag_grab_data_source_destroyed (gpointer data, GObject *where_the_object_was)
{
MetaWaylandDragGrab *drag_grab = data;
drag_grab->drag_data_source = NULL;
meta_wayland_data_device_set_dnd_source (&drag_grab->seat->data_device, NULL);
unset_selection_source (&drag_grab->seat->data_device, META_SELECTION_DND);
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_icon_listener);
drag_grab->drag_surface = NULL;
if (drag_grab->feedback_actor)
clutter_actor_remove_all_children (drag_grab->feedback_actor);
}
static GList *
copy_string_array_to_list (struct wl_array *array)
{
GList *l = NULL;
char **p;
wl_array_for_each (p, array)
l = g_list_prepend (l, g_strdup (*p));
return l;
}
void
meta_wayland_data_device_start_drag (MetaWaylandDataDevice *data_device,
struct wl_client *client,
const MetaWaylandPointerGrabInterface *funcs,
MetaWaylandSurface *surface,
MetaWaylandDataSource *source,
MetaWaylandSurface *icon_surface)
{
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
MetaWaylandDragGrab *drag_grab;
ClutterPoint pos, surface_pos;
ClutterModifierType modifiers;
MetaSurfaceActor *surface_actor;
data_device->current_grab = drag_grab = g_slice_new0 (MetaWaylandDragGrab);
drag_grab->generic.interface = funcs;
drag_grab->generic.pointer = seat->pointer;
drag_grab->keyboard_grab.interface = &keyboard_drag_grab_interface;
drag_grab->keyboard_grab.keyboard = seat->keyboard;
drag_grab->drag_client = client;
drag_grab->seat = seat;
drag_grab->drag_origin = surface;
drag_grab->drag_origin_listener.notify = destroy_data_device_origin;
wl_resource_add_destroy_listener (surface->resource,
&drag_grab->drag_origin_listener);
surface_actor = meta_wayland_surface_get_actor (surface);
clutter_actor_transform_stage_point (CLUTTER_ACTOR (meta_surface_actor_get_texture (surface_actor)),
seat->pointer->grab_x,
seat->pointer->grab_y,
&surface_pos.x, &surface_pos.y);
drag_grab->drag_start_x = surface_pos.x;
drag_grab->drag_start_y = surface_pos.y;
drag_grab->need_initial_focus = TRUE;
modifiers = clutter_input_device_get_modifier_state (seat->pointer->device);
drag_grab->buttons = modifiers &
(CLUTTER_BUTTON1_MASK | CLUTTER_BUTTON2_MASK | CLUTTER_BUTTON3_MASK |
CLUTTER_BUTTON4_MASK | CLUTTER_BUTTON5_MASK);
meta_wayland_drag_grab_set_source (drag_grab, source);
meta_wayland_data_device_set_dnd_source (data_device,
drag_grab->drag_data_source);
data_source_update_user_dnd_action (source, modifiers);
if (icon_surface)
{
ClutterActor *drag_surface_actor;
drag_grab->drag_surface = icon_surface;
drag_grab->drag_icon_listener.notify = destroy_data_device_icon;
wl_resource_add_destroy_listener (icon_surface->resource,
&drag_grab->drag_icon_listener);
drag_surface_actor = CLUTTER_ACTOR (meta_wayland_surface_get_actor (drag_grab->drag_surface));
drag_grab->feedback_actor = meta_dnd_actor_new (CLUTTER_ACTOR (surface_actor),
drag_grab->drag_start_x,
drag_grab->drag_start_y);
meta_feedback_actor_set_anchor (META_FEEDBACK_ACTOR (drag_grab->feedback_actor),
0, 0);
clutter_actor_add_child (drag_grab->feedback_actor, drag_surface_actor);
clutter_input_device_get_coords (seat->pointer->device, NULL, &pos);
meta_feedback_actor_set_position (META_FEEDBACK_ACTOR (drag_grab->feedback_actor),
pos.x, pos.y);
}
meta_wayland_pointer_start_grab (seat->pointer,
(MetaWaylandPointerGrab*) drag_grab);
meta_wayland_data_source_set_seat (source, seat);
}
void
meta_wayland_data_device_end_drag (MetaWaylandDataDevice *data_device)
{
if (data_device->current_grab)
data_device_end_drag_grab (data_device->current_grab);
}
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)
{
MetaWaylandDataDevice *data_device = wl_resource_get_user_data (resource);
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
MetaWaylandSurface *surface = NULL, *icon_surface = NULL;
MetaWaylandDataSource *drag_source = NULL;
MetaSelectionSource *selection_source;
GList *mimetypes;
if (origin_resource)
surface = wl_resource_get_user_data (origin_resource);
if (!surface)
return;
if (seat->pointer->button_count == 0 ||
seat->pointer->grab_serial != serial ||
!seat->pointer->focus_surface ||
seat->pointer->focus_surface != surface)
return;
/* FIXME: Check that the data source type array isn't empty. */
if (data_device->current_grab ||
seat->pointer->grab != &seat->pointer->default_grab)
return;
if (icon_resource)
icon_surface = wl_resource_get_user_data (icon_resource);
if (source_resource)
drag_source = wl_resource_get_user_data (source_resource);
if (icon_resource &&
!meta_wayland_surface_assign_role (icon_surface,
META_TYPE_WAYLAND_SURFACE_ROLE_DND,
NULL))
{
wl_resource_post_error (resource, WL_DATA_DEVICE_ERROR_ROLE,
"wl_surface@%d already has a different role",
wl_resource_get_id (icon_resource));
return;
}
mimetypes = copy_string_array_to_list (meta_wayland_data_source_get_mime_types (drag_source));
selection_source = meta_selection_source_wayland_new (source_resource,
mimetypes,
wl_data_source_send_send,
wl_data_source_send_cancelled);
g_list_free_full (mimetypes, g_free);
set_selection_source (data_device, META_SELECTION_DND,
selection_source);
meta_wayland_pointer_set_focus (seat->pointer, NULL);
meta_wayland_data_device_start_drag (data_device, client,
&drag_grab_interface,
surface, drag_source, icon_surface);
if (meta_wayland_seat_has_keyboard (seat))
{
meta_wayland_keyboard_set_focus (seat->keyboard, NULL);
meta_wayland_keyboard_start_grab (seat->keyboard,
&seat->data_device.current_grab->keyboard_grab);
}
}
static void
selection_data_source_destroyed (gpointer data, GObject *object_was_here)
{
MetaWaylandDataDevice *data_device = data;
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
struct wl_resource *data_device_resource;
struct wl_client *focus_client = NULL;
data_device->selection_data_source = NULL;
focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
if (focus_client)
{
data_device_resource = wl_resource_find_for_client (&data_device->resource_list, focus_client);
if (data_device_resource)
wl_data_device_send_selection (data_device_resource, NULL);
}
wl_signal_emit (&data_device->selection_ownership_signal, NULL);
unset_selection_source (data_device, META_SELECTION_CLIPBOARD);
}
static void
meta_wayland_source_send (MetaWaylandDataSource *source,
const gchar *mime_type,
gint fd)
{
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
wl_data_source_send_send (source_wayland->resource, mime_type, fd);
close (fd);
}
static void
meta_wayland_source_target (MetaWaylandDataSource *source,
const gchar *mime_type)
{
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
wl_data_source_send_target (source_wayland->resource, mime_type);
}
static void
meta_wayland_source_cancel (MetaWaylandDataSource *source)
{
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
wl_data_source_send_cancelled (source_wayland->resource);
}
static void
meta_wayland_source_action (MetaWaylandDataSource *source,
enum wl_data_device_manager_dnd_action action)
{
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
if (wl_resource_get_version (source_wayland->resource) >=
WL_DATA_SOURCE_ACTION_SINCE_VERSION)
wl_data_source_send_action (source_wayland->resource, action);
}
static void
meta_wayland_source_drop_performed (MetaWaylandDataSource *source)
{
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
if (wl_resource_get_version (source_wayland->resource) >=
WL_DATA_SOURCE_DND_DROP_PERFORMED_SINCE_VERSION)
wl_data_source_send_dnd_drop_performed (source_wayland->resource);
}
static void
meta_wayland_source_drag_finished (MetaWaylandDataSource *source)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
enum wl_data_device_manager_dnd_action action;
if (meta_wayland_source_get_in_ask (source))
{
action = meta_wayland_data_source_get_current_action (source);
meta_wayland_source_action (source, action);
}
if (wl_resource_get_version (source_wayland->resource) >=
WL_DATA_SOURCE_DND_FINISHED_SINCE_VERSION)
wl_data_source_send_dnd_finished (source_wayland->resource);
unset_selection_source (data_device, META_SELECTION_DND);
}
static void
meta_wayland_source_finalize (GObject *object)
{
G_OBJECT_CLASS (meta_wayland_data_source_parent_class)->finalize (object);
}
static void
meta_wayland_data_source_wayland_init (MetaWaylandDataSourceWayland *source_wayland)
{
}
static void
meta_wayland_data_source_wayland_class_init (MetaWaylandDataSourceWaylandClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MetaWaylandDataSourceClass *data_source_class =
META_WAYLAND_DATA_SOURCE_CLASS (klass);
object_class->finalize = meta_wayland_source_finalize;
data_source_class->send = meta_wayland_source_send;
data_source_class->target = meta_wayland_source_target;
data_source_class->cancel = meta_wayland_source_cancel;
data_source_class->action = meta_wayland_source_action;
data_source_class->drop_performed = meta_wayland_source_drop_performed;
data_source_class->drag_finished = meta_wayland_source_drag_finished;
}
static void
meta_wayland_data_source_primary_send (MetaWaylandDataSource *source,
const gchar *mime_type,
gint fd)
{
MetaWaylandDataSourcePrimary *source_primary;
source_primary = META_WAYLAND_DATA_SOURCE_PRIMARY (source);
gtk_primary_selection_source_send_send (source_primary->resource,
mime_type, fd);
close (fd);
}
static void
meta_wayland_data_source_primary_cancel (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrimary *source_primary;
source_primary = META_WAYLAND_DATA_SOURCE_PRIMARY (source);
gtk_primary_selection_source_send_cancelled (source_primary->resource);
}
static void
meta_wayland_data_source_primary_init (MetaWaylandDataSourcePrimary *source_primary)
{
}
static void
meta_wayland_data_source_primary_class_init (MetaWaylandDataSourcePrimaryClass *klass)
{
MetaWaylandDataSourceClass *data_source_class =
META_WAYLAND_DATA_SOURCE_CLASS (klass);
data_source_class->send = meta_wayland_data_source_primary_send;
data_source_class->cancel = meta_wayland_data_source_primary_cancel;
}
static void
meta_wayland_data_source_finalize (GObject *object)
{
MetaWaylandDataSource *source = META_WAYLAND_DATA_SOURCE (object);
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
char **pos;
wl_array_for_each (pos, &priv->mime_types)
g_free (*pos);
wl_array_release (&priv->mime_types);
G_OBJECT_CLASS (meta_wayland_data_source_parent_class)->finalize (object);
}
static void
meta_wayland_data_source_init (MetaWaylandDataSource *source)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
wl_array_init (&priv->mime_types);
priv->current_dnd_action = -1;
}
static void
meta_wayland_data_source_class_init (MetaWaylandDataSourceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_wayland_data_source_finalize;
}
static void
meta_wayland_drag_dest_focus_in (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface,
MetaWaylandDataOffer *offer)
{
MetaWaylandDragGrab *grab = data_device->current_grab;
struct wl_display *display;
struct wl_client *client;
uint32_t source_actions;
wl_fixed_t sx, sy;
if (!grab->drag_focus_data_device)
return;
client = wl_resource_get_client (surface->resource);
display = wl_client_get_display (client);
grab->drag_focus_listener.notify = destroy_drag_focus;
wl_resource_add_destroy_listener (grab->drag_focus_data_device,
&grab->drag_focus_listener);
if (wl_resource_get_version (offer->resource) >=
WL_DATA_OFFER_SOURCE_ACTIONS_SINCE_VERSION)
{
source_actions = meta_wayland_data_source_get_actions (offer->source);
wl_data_offer_send_source_actions (offer->resource, source_actions);
}
meta_wayland_pointer_get_relative_coordinates (grab->generic.pointer,
surface, &sx, &sy);
wl_data_device_send_enter (grab->drag_focus_data_device,
wl_display_next_serial (display),
surface->resource, sx, sy, offer->resource);
}
static void
meta_wayland_drag_dest_focus_out (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface)
{
MetaWaylandDragGrab *grab = data_device->current_grab;
if (!grab->drag_focus_data_device)
return;
wl_data_device_send_leave (grab->drag_focus_data_device);
wl_list_remove (&grab->drag_focus_listener.link);
grab->drag_focus_data_device = NULL;
}
static void
meta_wayland_drag_dest_motion (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface,
const ClutterEvent *event)
{
MetaWaylandDragGrab *grab = data_device->current_grab;
wl_fixed_t sx, sy;
if (!grab->drag_focus_data_device)
return;
meta_wayland_pointer_get_relative_coordinates (grab->generic.pointer,
grab->drag_focus,
&sx, &sy);
wl_data_device_send_motion (grab->drag_focus_data_device,
clutter_event_get_time (event),
sx, sy);
}
static void
meta_wayland_drag_dest_drop (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface)
{
MetaWaylandDragGrab *grab = data_device->current_grab;
if (!grab->drag_focus_data_device)
return;
wl_data_device_send_drop (grab->drag_focus_data_device);
}
static void
meta_wayland_drag_dest_update (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface)
{
}
static const MetaWaylandDragDestFuncs meta_wayland_drag_dest_funcs = {
meta_wayland_drag_dest_focus_in,
meta_wayland_drag_dest_focus_out,
meta_wayland_drag_dest_motion,
meta_wayland_drag_dest_drop,
meta_wayland_drag_dest_update
};
const MetaWaylandDragDestFuncs *
meta_wayland_data_device_get_drag_dest_funcs (void)
{
return &meta_wayland_drag_dest_funcs;
}
void
meta_wayland_data_device_set_dnd_source (MetaWaylandDataDevice *data_device,
MetaWaylandDataSource *source)
{
if (data_device->dnd_data_source == source)
return;
if (data_device->dnd_data_source)
g_object_remove_weak_pointer (G_OBJECT (data_device->dnd_data_source),
(gpointer *)&data_device->dnd_data_source);
data_device->dnd_data_source = source;
if (source)
g_object_add_weak_pointer (G_OBJECT (data_device->dnd_data_source),
(gpointer *)&data_device->dnd_data_source);
wl_signal_emit (&data_device->dnd_ownership_signal, source);
}
void
meta_wayland_data_device_set_selection (MetaWaylandDataDevice *data_device,
MetaWaylandDataSource *source,
guint32 serial)
{
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
struct wl_resource *data_device_resource;
struct wl_client *focus_client;
if (data_device->selection_data_source &&
data_device->selection_serial - serial < UINT32_MAX / 2)
return;
if (data_device->selection_data_source)
{
meta_wayland_data_source_cancel (data_device->selection_data_source);
g_object_weak_unref (G_OBJECT (data_device->selection_data_source),
selection_data_source_destroyed,
data_device);
data_device->selection_data_source = NULL;
}
data_device->selection_data_source = source;
data_device->selection_serial = serial;
focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
if (focus_client)
{
data_device_resource = wl_resource_find_for_client (&data_device->resource_list, focus_client);
if (data_device_resource)
{
struct wl_resource *offer;
offer = create_and_send_clipboard_offer (data_device, data_device_resource);
wl_data_device_send_selection (data_device_resource, offer);
}
}
if (source)
{
MetaWaylandDataSourceWayland *source_wayland =
META_WAYLAND_DATA_SOURCE_WAYLAND (source);
MetaSelectionSource *selection_source;
GList *mimetypes;
meta_wayland_data_source_set_seat (source, seat);
g_object_weak_ref (G_OBJECT (source),
selection_data_source_destroyed,
data_device);
mimetypes = copy_string_array_to_list (meta_wayland_data_source_get_mime_types (source));
selection_source = meta_selection_source_wayland_new (source_wayland->resource,
mimetypes,
wl_data_source_send_send,
wl_data_source_send_cancelled);
g_list_free_full (mimetypes, g_free);
set_selection_source (data_device, META_SELECTION_CLIPBOARD,
selection_source);
}
else
{
unset_selection_source (data_device, META_SELECTION_CLIPBOARD);
}
wl_signal_emit (&data_device->selection_ownership_signal, source);
}
static void
data_device_set_selection (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *source_resource,
guint32 serial)
{
MetaWaylandDataDevice *data_device = wl_resource_get_user_data (resource);
MetaWaylandDataSourcePrivate *priv;
MetaWaylandDataSource *source;
if (source_resource)
source = wl_resource_get_user_data (source_resource);
else
source = NULL;
if (source)
{
priv = meta_wayland_data_source_get_instance_private (source);
if (priv->actions_set)
{
wl_resource_post_error(source_resource,
WL_DATA_SOURCE_ERROR_INVALID_SOURCE,
"cannot set drag-and-drop source as selection");
return;
}
}
/* FIXME: Store serial and check against incoming serial here. */
meta_wayland_data_device_set_selection (data_device, source, serial);
}
static const struct wl_data_device_interface data_device_interface = {
data_device_start_drag,
data_device_set_selection,
default_destructor,
};
static void
primary_source_destroyed (gpointer data,
GObject *object_was_here)
{
MetaWaylandDataDevice *data_device = data;
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
struct wl_client *focus_client = NULL;
data_device->primary_data_source = NULL;
focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
if (focus_client)
{
struct wl_resource *data_device_resource;
data_device_resource = wl_resource_find_for_client (&data_device->primary_resource_list, focus_client);
if (data_device_resource)
gtk_primary_selection_device_send_selection (data_device_resource, NULL);
}
wl_signal_emit (&data_device->primary_ownership_signal, NULL);
unset_selection_source (data_device, META_SELECTION_PRIMARY);
}
void
meta_wayland_data_device_set_primary (MetaWaylandDataDevice *data_device,
MetaWaylandDataSource *source,
guint32 serial)
{
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
struct wl_resource *data_device_resource;
struct wl_client *focus_client;
if (META_IS_WAYLAND_DATA_SOURCE_PRIMARY (source))
{
struct wl_resource *resource;
resource = META_WAYLAND_DATA_SOURCE_PRIMARY (source)->resource;
if (wl_resource_get_client (resource) !=
meta_wayland_keyboard_get_focus_client (seat->keyboard))
return;
}
if (data_device->primary_data_source &&
data_device->primary_serial - serial < UINT32_MAX / 2)
return;
if (data_device->primary_data_source)
{
meta_wayland_data_source_cancel (data_device->primary_data_source);
g_object_weak_unref (G_OBJECT (data_device->primary_data_source),
primary_source_destroyed,
data_device);
}
data_device->primary_data_source = source;
data_device->primary_serial = serial;
focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
if (focus_client)
{
data_device_resource = wl_resource_find_for_client (&data_device->primary_resource_list, focus_client);
if (data_device_resource)
{
struct wl_resource *offer;
offer = create_and_send_primary_offer (data_device, data_device_resource);
gtk_primary_selection_device_send_selection (data_device_resource, offer);
}
}
if (source)
{
MetaSelectionSource *selection_source;
GList *mimetypes;
meta_wayland_data_source_set_seat (source, seat);
g_object_weak_ref (G_OBJECT (source),
primary_source_destroyed,
data_device);
mimetypes = copy_string_array_to_list (meta_wayland_data_source_get_mime_types (source));
selection_source = meta_selection_source_wayland_new (META_WAYLAND_DATA_SOURCE_PRIMARY (source)->resource,
mimetypes,
gtk_primary_selection_source_send_send,
gtk_primary_selection_source_send_cancelled);
g_list_free_full (mimetypes, g_free);
set_selection_source (data_device, META_SELECTION_PRIMARY,
selection_source);
}
else
{
unset_selection_source (data_device, META_SELECTION_PRIMARY);
}
wl_signal_emit (&data_device->primary_ownership_signal, source);
}
static void
primary_device_set_selection (struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *source_resource,
uint32_t serial)
{
MetaWaylandDataDevice *data_device = wl_resource_get_user_data (resource);
MetaWaylandDataSource *source = NULL;
if (source_resource)
source = wl_resource_get_user_data (source_resource);
meta_wayland_data_device_set_primary (data_device, source, serial);
}
static const struct gtk_primary_selection_device_interface primary_device_interface = {
primary_device_set_selection,
default_destructor,
};
static void
destroy_data_source (struct wl_resource *resource)
{
MetaWaylandDataSourceWayland *source = wl_resource_get_user_data (resource);
source->resource = NULL;
g_object_unref (source);
}
static void
create_data_source (struct wl_client *client,
struct wl_resource *resource, guint32 id)
{
struct wl_resource *source_resource;
source_resource = wl_resource_create (client, &wl_data_source_interface,
wl_resource_get_version (resource), id);
meta_wayland_data_source_wayland_new (source_resource);
}
static void
owner_changed_cb (MetaSelection *selection,
MetaSelectionType selection_type,
MetaSelectionSource *new_owner,
MetaWaylandDataDevice *data_device)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandSeat *seat = compositor->seat;
struct wl_resource *data_device_resource;
struct wl_client *focus_client;
focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
if (!focus_client)
return;
if (selection_type == META_SELECTION_PRIMARY)
{
data_device_resource =
wl_resource_find_for_client (&data_device->primary_resource_list,
focus_client);
if (data_device_resource)
{
struct wl_resource *offer = NULL;
if (new_owner)
{
offer = create_and_send_primary_offer (data_device,
data_device_resource);
}
gtk_primary_selection_device_send_selection (data_device_resource,
offer);
}
}
else if (selection_type == META_SELECTION_CLIPBOARD)
{
data_device_resource =
wl_resource_find_for_client (&data_device->resource_list, focus_client);
if (data_device_resource)
{
struct wl_resource *offer = NULL;
if (new_owner)
{
offer = create_and_send_clipboard_offer (data_device,
data_device_resource);
}
wl_data_device_send_selection (data_device_resource, offer);
}
}
}
static void
ensure_owners_changed_handler_connected (MetaWaylandDataDevice *data_device)
{
if (data_device->selection_owner_signal_id != 0)
return;
data_device->selection_owner_signal_id =
g_signal_connect (meta_display_get_selection (meta_get_display ()),
"owner-changed",
G_CALLBACK (owner_changed_cb), data_device);
}
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 *cr;
cr = wl_resource_create (client, &wl_data_device_interface, wl_resource_get_version (manager_resource), id);
wl_resource_set_implementation (cr, &data_device_interface, &seat->data_device, unbind_resource);
wl_list_insert (&seat->data_device.resource_list, wl_resource_get_link (cr));
ensure_owners_changed_handler_connected (&seat->data_device);
}
static const struct wl_data_device_manager_interface manager_interface = {
create_data_source,
get_data_device
};
static void
destroy_primary_source (struct wl_resource *resource)
{
MetaWaylandDataSourcePrimary *source = wl_resource_get_user_data (resource);
source->resource = NULL;
g_object_unref (source);
}
static void
primary_device_manager_create_source (struct wl_client *client,
struct wl_resource *manager_resource,
guint32 id)
{
struct wl_resource *source_resource;
source_resource =
wl_resource_create (client, &gtk_primary_selection_source_interface,
wl_resource_get_version (manager_resource),
id);
meta_wayland_data_source_primary_new (source_resource);
}
static void
primary_device_manager_get_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 *cr;
cr = wl_resource_create (client, &gtk_primary_selection_device_interface,
wl_resource_get_version (manager_resource), id);
wl_resource_set_implementation (cr, &primary_device_interface,
&seat->data_device, unbind_resource);
wl_list_insert (&seat->data_device.primary_resource_list, wl_resource_get_link (cr));
ensure_owners_changed_handler_connected (&seat->data_device);
}
static const struct gtk_primary_selection_device_manager_interface primary_manager_interface = {
primary_device_manager_create_source,
primary_device_manager_get_device,
default_destructor,
};
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, version, id);
wl_resource_set_implementation (resource, &manager_interface, NULL, NULL);
}
static void
bind_primary_manager (struct wl_client *client,
void *data,
uint32_t version,
uint32_t id)
{
struct wl_resource *resource;
resource = wl_resource_create (client, &gtk_primary_selection_device_manager_interface,
version, id);
wl_resource_set_implementation (resource, &primary_manager_interface, NULL, NULL);
}
void
meta_wayland_data_device_manager_init (MetaWaylandCompositor *compositor)
{
if (wl_global_create (compositor->wayland_display,
&wl_data_device_manager_interface,
META_WL_DATA_DEVICE_MANAGER_VERSION,
NULL, bind_manager) == NULL)
g_error ("Could not create data_device");
if (wl_global_create (compositor->wayland_display,
&gtk_primary_selection_device_manager_interface,
1, NULL, bind_primary_manager) == NULL)
g_error ("Could not create data_device");
}
void
meta_wayland_data_device_init (MetaWaylandDataDevice *data_device)
{
wl_list_init (&data_device->resource_list);
wl_list_init (&data_device->primary_resource_list);
wl_signal_init (&data_device->selection_ownership_signal);
wl_signal_init (&data_device->primary_ownership_signal);
wl_signal_init (&data_device->dnd_ownership_signal);
}
static struct wl_resource *
create_and_send_clipboard_offer (MetaWaylandDataDevice *data_device,
struct wl_resource *target)
{
MetaWaylandDataOffer *offer;
MetaDisplay *display = meta_get_display ();
GList *mimetypes, *l;
mimetypes = meta_selection_get_mimetypes (meta_display_get_selection (display),
META_SELECTION_CLIPBOARD);
if (!mimetypes)
return NULL;
offer = g_slice_new0 (MetaWaylandDataOffer);
offer->resource = wl_resource_create (wl_resource_get_client (target),
&wl_data_offer_interface,
wl_resource_get_version (target), 0);
wl_resource_set_implementation (offer->resource,
&data_offer_interface,
offer,
destroy_data_offer);
wl_data_device_send_data_offer (target, offer->resource);
for (l = mimetypes; l; l = l->next)
wl_data_offer_send_offer (offer->resource, l->data);
g_list_free_full (mimetypes, g_free);
return offer->resource;
}
static struct wl_resource *
create_and_send_primary_offer (MetaWaylandDataDevice *data_device,
struct wl_resource *target)
{
MetaWaylandDataOffer *offer;
MetaDisplay *display = meta_get_display ();
GList *mimetypes, *l;
mimetypes = meta_selection_get_mimetypes (meta_display_get_selection (display),
META_SELECTION_PRIMARY);
if (!mimetypes)
return NULL;
offer = g_slice_new0 (MetaWaylandDataOffer);
offer->resource = wl_resource_create (wl_resource_get_client (target),
&gtk_primary_selection_offer_interface,
wl_resource_get_version (target), 0);
wl_resource_set_implementation (offer->resource,
&primary_offer_interface,
offer,
destroy_primary_offer);
gtk_primary_selection_device_send_data_offer (target, offer->resource);
for (l = mimetypes; l; l = l->next)
gtk_primary_selection_offer_send_offer (offer->resource, l->data);
g_list_free_full (mimetypes, g_free);
return offer->resource;
}
void
meta_wayland_data_device_set_keyboard_focus (MetaWaylandDataDevice *data_device)
{
MetaWaylandSeat *seat = wl_container_of (data_device, seat, data_device);
struct wl_client *focus_client;
struct wl_resource *data_device_resource;
focus_client = meta_wayland_keyboard_get_focus_client (seat->keyboard);
if (focus_client == data_device->focus_client)
return;
data_device->focus_client = focus_client;
if (!focus_client)
return;
data_device_resource = wl_resource_find_for_client (&data_device->resource_list, focus_client);
if (data_device_resource)
{
struct wl_resource *offer;
offer = create_and_send_clipboard_offer (data_device, data_device_resource);
wl_data_device_send_selection (data_device_resource, offer);
}
data_device_resource = wl_resource_find_for_client (&data_device->primary_resource_list, focus_client);
if (data_device_resource)
{
struct wl_resource *offer;
offer = create_and_send_primary_offer (data_device, data_device_resource);
gtk_primary_selection_device_send_selection (data_device_resource, offer);
}
}
gboolean
meta_wayland_data_device_is_dnd_surface (MetaWaylandDataDevice *data_device,
MetaWaylandSurface *surface)
{
return data_device->current_grab &&
data_device->current_grab->drag_surface == surface;
}
MetaWaylandDragGrab *
meta_wayland_data_device_get_current_grab (MetaWaylandDataDevice *data_device)
{
return data_device->current_grab;
}
gboolean
meta_wayland_data_source_has_mime_type (const MetaWaylandDataSource *source,
const gchar *mime_type)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private ((MetaWaylandDataSource *)source);
gchar **p;
wl_array_for_each (p, &priv->mime_types)
{
if (g_strcmp0 (mime_type, *p) == 0)
return TRUE;
}
return FALSE;
}
static MetaWaylandDataSource *
meta_wayland_data_source_wayland_new (struct wl_resource *resource)
{
MetaWaylandDataSourceWayland *source_wayland =
g_object_new (META_TYPE_WAYLAND_DATA_SOURCE_WAYLAND, NULL);
source_wayland->resource = resource;
wl_resource_set_implementation (resource, &data_source_interface,
source_wayland, destroy_data_source);
return META_WAYLAND_DATA_SOURCE (source_wayland);
}
static MetaWaylandDataSource *
meta_wayland_data_source_primary_new (struct wl_resource *resource)
{
MetaWaylandDataSourcePrimary *source_primary =
g_object_new (META_TYPE_WAYLAND_DATA_SOURCE_PRIMARY, NULL);
source_primary->resource = resource;
wl_resource_set_implementation (resource, &primary_source_interface,
source_primary, destroy_primary_source);
return META_WAYLAND_DATA_SOURCE (source_primary);
}
gboolean
meta_wayland_data_source_add_mime_type (MetaWaylandDataSource *source,
const gchar *mime_type)
{
MetaWaylandDataSourcePrivate *priv =
meta_wayland_data_source_get_instance_private (source);
gchar **pos;
pos = wl_array_add (&priv->mime_types, sizeof (*pos));
if (pos)
{
*pos = g_strdup (mime_type);
return *pos != NULL;
}
return FALSE;
}
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