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mutter/src/wayland/meta-wayland-data-device.c
Georges Basile Stavracas Neto 75cffd0ec4 shaped-texture: Implement ClutterContent 
MetaWindowActor is the compositor-side representative of a
MetaWindow. Specifically it represents the geometry of the
window under Clutter scene graph. MetaWindowActors are backed
by MetaSurfaceActors, that represent the windowing system's
surfaces themselves. Naturally, these surfaces have textures
with the pixel content of the clients associated with them.
These textures are represented by MetaShapedTexture.

MetaShapedTextures are currently implemented as ClutterActor
subclasses that override the paint function to paint the
textures it holds.

Conceptually, however, Clutter has an abstraction layer for
contents of actors: ClutterContent. Which MetaShapedTexture
fits nicely, in fact.

Make MetaShapedTexture a ClutterContent implementation. This
forces a few changes in the stack:

 * MetaShapedTexture now handles buffer scale.

 * We now paint into ClutterPaintNode instead of the direct
   framebuffer.

 * Various pieces of Wayland code now use MetaSurfaceActor
   instead of MetaShapedTexture.

 * MetaSurfaceActorWayland doesn't override size negotiation
   vfuncs anymore

https://gitlab.gnome.org/GNOME/mutter/merge_requests/409
2019-08-23 13:23:07 +00:00

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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 void unset_selection_source (MetaWaylandDataDevice *data_device,
MetaSelectionType selection_type);
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_PRIMARY);
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->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
{
if (seat->data_device.dnd_data_source == offer->source)
unset_selection_source (&seat->data_device, META_SELECTION_DND);
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 *
create_and_send_dnd_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 = create_and_send_dnd_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_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 (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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