gtk2/gdk/wayland/gdkprimary-wayland.c
Matthias Clasen 845ae20954 wayland: Use g_message for logging
g_printerr is not the best for this.
2018-01-14 17:05:04 -05:00

400 lines
13 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2017 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdkprimary-wayland.h"
#include "gdkclipboardprivate.h"
#include "gdkcontentformats.h"
#include "gdkintl.h"
#include "gdkprivate-wayland.h"
#include "gdk-private.h"
#include <glib-unix.h>
#include <gio/gunixinputstream.h>
#include <gio/gunixoutputstream.h>
typedef struct _GdkWaylandPrimaryClass GdkWaylandPrimaryClass;
struct _GdkWaylandPrimary
{
GdkClipboard parent;
struct gtk_primary_selection_device *primary_data_device;
struct gtk_primary_selection_offer *pending;
GdkContentFormatsBuilder *pending_builder;
struct gtk_primary_selection_offer *offer;
GdkContentFormats *offer_formats;
struct gtk_primary_selection_source *source;
};
struct _GdkWaylandPrimaryClass
{
GdkClipboardClass parent_class;
};
G_DEFINE_TYPE (GdkWaylandPrimary, gdk_wayland_primary, GDK_TYPE_CLIPBOARD)
static void
gdk_wayland_primary_discard_pending (GdkWaylandPrimary *cb)
{
if (cb->pending_builder)
{
GdkContentFormats *ignore = gdk_content_formats_builder_free (cb->pending_builder);
gdk_content_formats_unref (ignore);
cb->pending_builder = NULL;
}
g_clear_pointer (&cb->pending, (GDestroyNotify) gtk_primary_selection_offer_destroy);
}
static void
gdk_wayland_primary_discard_offer (GdkWaylandPrimary *cb)
{
g_clear_pointer (&cb->offer_formats, gdk_content_formats_unref);
g_clear_pointer (&cb->offer, (GDestroyNotify) gtk_primary_selection_offer_destroy);
}
static void
gdk_wayland_primary_discard_source (GdkWaylandPrimary *cb)
{
g_clear_pointer (&cb->source, (GDestroyNotify) wl_data_source_destroy);
}
static void
gdk_wayland_primary_finalize (GObject *object)
{
GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (object);
gdk_wayland_primary_discard_pending (cb);
gdk_wayland_primary_discard_offer (cb);
gdk_wayland_primary_discard_source (cb);
G_OBJECT_CLASS (gdk_wayland_primary_parent_class)->finalize (object);
}
static void
gdk_wayland_primary_claim_remote (GdkWaylandPrimary *cb,
struct gtk_primary_selection_offer *offer,
GdkContentFormats *formats)
{
g_return_if_fail (GDK_IS_WAYLAND_PRIMARY (cb));
if (cb->source)
{
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), CLIPBOARD, g_message ("%p: Ignoring clipboard offer for self", cb));
gdk_content_formats_unref (formats);
return;
}
gdk_wayland_primary_discard_offer (cb);
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), CLIPBOARD, char *s = gdk_content_formats_to_string (formats);
g_message ("%p: remote clipboard claim for %s", cb, s);
g_free (s); );
cb->offer_formats = formats;
cb->offer = offer;
gdk_clipboard_claim_remote (GDK_CLIPBOARD (cb),
cb->offer_formats);
}
static void
primary_offer_offer (void *data,
struct gtk_primary_selection_offer *offer,
const char *type)
{
GdkWaylandPrimary *cb = data;
if (cb->pending != offer)
{
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), SELECTION, g_message ("%p: offer for unknown selection %p of %s",
cb, offer, type));
return;
}
gdk_content_formats_builder_add_mime_type (cb->pending_builder, type);
}
static const struct gtk_primary_selection_offer_listener primary_offer_listener = {
primary_offer_offer,
};
static void
primary_selection_data_offer (void *data,
struct gtk_primary_selection_device *device,
struct gtk_primary_selection_offer *offer)
{
GdkWaylandPrimary *cb = data;
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), SELECTION, g_message ("%p: new primary offer %p",
cb, offer));
gdk_wayland_primary_discard_pending (cb);
cb->pending = offer;
gtk_primary_selection_offer_add_listener (offer,
&primary_offer_listener,
cb);
cb->pending_builder = gdk_content_formats_builder_new ();
}
static void
primary_selection_selection (void *data,
struct gtk_primary_selection_device *device,
struct gtk_primary_selection_offer *offer)
{
GdkWaylandPrimary *cb = data;
GdkContentFormats *formats;
if (offer == NULL)
{
gdk_wayland_primary_claim_remote (cb, NULL, gdk_content_formats_new (NULL, 0));
return;
}
if (cb->pending != offer)
{
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), SELECTION, g_message ("%p: ignoring unknown data offer %p",
cb, offer));
return;
}
formats = gdk_content_formats_builder_free (cb->pending_builder);
cb->pending_builder = NULL;
cb->pending = NULL;
gdk_wayland_primary_claim_remote (cb, offer, formats);
}
static const struct gtk_primary_selection_device_listener primary_selection_device_listener = {
primary_selection_data_offer,
primary_selection_selection,
};
static void
gdk_wayland_primary_write_done (GObject *clipboard,
GAsyncResult *result,
gpointer user_data)
{
GError *error = NULL;
if (!gdk_clipboard_write_finish (GDK_CLIPBOARD (clipboard), result, &error))
{
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (clipboard)), SELECTION, g_message ("%p: failed to write stream: %s", clipboard, error->message));
g_error_free (error);
}
}
static void
gdk_wayland_primary_data_source_send (void *data,
struct gtk_primary_selection_source *source,
const char *mime_type,
int32_t fd)
{
GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (data);
GOutputStream *stream;
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (data)), SELECTION, g_message ("%p: data source send request for %s on fd %d",
source, mime_type, fd));
mime_type = gdk_intern_mime_type (mime_type);
stream = g_unix_output_stream_new (fd, TRUE);
gdk_clipboard_write_async (GDK_CLIPBOARD (cb),
mime_type,
stream,
G_PRIORITY_DEFAULT,
NULL,
gdk_wayland_primary_write_done,
cb);
g_object_unref (stream);
}
static void
gdk_wayland_primary_data_source_cancelled (void *data,
struct gtk_primary_selection_source *source)
{
GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (data);
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (data)), CLIPBOARD, g_message ("%p: data source cancelled", data));
if (cb->source == source)
{
gdk_wayland_primary_discard_source (cb);
gdk_wayland_primary_claim_remote (cb, NULL, gdk_content_formats_new (NULL, 0));
}
}
static const struct gtk_primary_selection_source_listener primary_source_listener = {
gdk_wayland_primary_data_source_send,
gdk_wayland_primary_data_source_cancelled,
};
static gboolean
gdk_wayland_primary_claim (GdkClipboard *clipboard,
GdkContentFormats *formats,
gboolean local,
GdkContentProvider *content)
{
GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (clipboard);
if (local)
{
GdkWaylandDisplay *wdisplay = GDK_WAYLAND_DISPLAY (gdk_clipboard_get_display (clipboard));
const char * const *mime_types;
gsize i, n_mime_types;
gdk_wayland_primary_discard_offer (cb);
gdk_wayland_primary_discard_source (cb);
cb->source = gtk_primary_selection_device_manager_create_source (wdisplay->primary_selection_manager);
gtk_primary_selection_source_add_listener (cb->source, &primary_source_listener, cb);
mime_types = gdk_content_formats_get_mime_types (formats, &n_mime_types);
for (i = 0; i < n_mime_types; i++)
{
gtk_primary_selection_source_offer (cb->source, mime_types[i]);
}
gtk_primary_selection_device_set_selection (cb->primary_data_device,
cb->source,
_gdk_wayland_display_get_serial (wdisplay));
}
return GDK_CLIPBOARD_CLASS (gdk_wayland_primary_parent_class)->claim (clipboard, formats, local, content);
}
static void
gdk_wayland_primary_read_async (GdkClipboard *clipboard,
GdkContentFormats *formats,
int io_priority,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (clipboard);
GInputStream *stream;
const char *mime_type;
int pipe_fd[2];
GError *error = NULL;
GTask *task;
task = g_task_new (clipboard, cancellable, callback, user_data);
g_task_set_priority (task, io_priority);
g_task_set_source_tag (task, gdk_wayland_primary_read_async);
GDK_DISPLAY_NOTE (gdk_clipboard_get_display (clipboard), CLIPBOARD, char *s = gdk_content_formats_to_string (formats);
g_message ("%p: read for %s", cb, s);
g_free (s); );
mime_type = gdk_content_formats_match_mime_type (formats, cb->offer_formats);
if (mime_type == NULL)
{
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
_("No compatible transfer format found"));
return;
}
/* offer formats should be empty if we have no offer */
g_assert (cb->offer);
g_task_set_task_data (task, (gpointer) mime_type, NULL);
if (!g_unix_open_pipe (pipe_fd, FD_CLOEXEC, &error))
{
g_task_return_error (task, error);
return;
}
gtk_primary_selection_offer_receive (cb->offer, mime_type, pipe_fd[1]);
stream = g_unix_input_stream_new (pipe_fd[0], TRUE);
close (pipe_fd[1]);
g_task_return_pointer (task, stream, g_object_unref);
}
static GInputStream *
gdk_wayland_primary_read_finish (GdkClipboard *clipboard,
const char **out_mime_type,
GAsyncResult *result,
GError **error)
{
GInputStream *stream;
GTask *task;
g_return_val_if_fail (g_task_is_valid (result, G_OBJECT (clipboard)), NULL);
task = G_TASK (result);
g_return_val_if_fail (g_task_get_source_tag (task) == gdk_wayland_primary_read_async, NULL);
stream = g_task_propagate_pointer (task, error);
if (stream)
{
if (out_mime_type)
*out_mime_type = g_task_get_task_data (task);
g_object_ref (stream);
}
else
{
if (out_mime_type)
*out_mime_type = NULL;
}
return stream;
}
static void
gdk_wayland_primary_class_init (GdkWaylandPrimaryClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkClipboardClass *clipboard_class = GDK_CLIPBOARD_CLASS (class);
object_class->finalize = gdk_wayland_primary_finalize;
clipboard_class->claim = gdk_wayland_primary_claim;
clipboard_class->read_async = gdk_wayland_primary_read_async;
clipboard_class->read_finish = gdk_wayland_primary_read_finish;
}
static void
gdk_wayland_primary_init (GdkWaylandPrimary *cb)
{
}
GdkClipboard *
gdk_wayland_primary_new (GdkWaylandSeat *seat)
{
GdkWaylandDisplay *wdisplay;
GdkWaylandPrimary *cb;
wdisplay = GDK_WAYLAND_DISPLAY (gdk_seat_get_display (GDK_SEAT (seat)));
cb = g_object_new (GDK_TYPE_WAYLAND_PRIMARY,
"display", wdisplay,
NULL);
cb->primary_data_device =
gtk_primary_selection_device_manager_get_device (wdisplay->primary_selection_manager,
gdk_wayland_seat_get_wl_seat (GDK_SEAT (seat)));
gtk_primary_selection_device_add_listener (cb->primary_data_device,
&primary_selection_device_listener, cb);
return GDK_CLIPBOARD (cb);
}