wayland: Add X11/wayland selection interoperation
This piece of code hooks in both wl_data_device and the relevant X selection events, an X11 Window is set up so it can act as the clipboard owner when any wayland client owns the selection, reacting to SelectionRequest events, and returning the data from the wayland client FD to any X11 requestor through X properties. In the opposite direction, SelectionNotify messages are received, which results in the property contents being converted then written into the wayland requestor's FD. This code also takes care of the handling incremental transfers through the INCR property type, reading/writing data chunk by chunk. https://bugzilla.gnome.org/show_bug.cgi?id=738312
This commit is contained in:
Carlos Garnacho
parent
4b5f5abb4f
commit
4fc1811c15
@ -243,6 +243,7 @@ libmutter_la_SOURCES += \
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wayland/meta-wayland-private.h \
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wayland/meta-xwayland.c \
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wayland/meta-xwayland.h \
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wayland/meta-xwayland-selection.c \
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wayland/meta-xwayland-private.h \
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wayland/meta-wayland-buffer.c \
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wayland/meta-wayland-buffer.h \
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@ -33,6 +33,8 @@
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#include "meta-wayland-surface.h"
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#include "meta-wayland-seat.h"
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typedef struct _MetaXWaylandSelection MetaXWaylandSelection;
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typedef struct
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{
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struct wl_list link;
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@ -52,6 +54,8 @@ typedef struct
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char *display_name;
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GMainLoop *init_loop;
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MetaXWaylandSelection *selection_data;
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} MetaXWaylandManager;
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struct _MetaWaylandCompositor
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@ -34,4 +34,9 @@ meta_xwayland_complete_init (void);
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void
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meta_xwayland_stop (MetaXWaylandManager *manager);
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/* wl_data_device/X11 selection interoperation */
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void meta_xwayland_init_selection (void);
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void meta_xwayland_shutdown_selection (void);
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gboolean meta_xwayland_selection_handle_event (XEvent *xevent);
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#endif /* META_XWAYLAND_PRIVATE_H */
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944
src/wayland/meta-xwayland-selection.c
Normal file
944
src/wayland/meta-xwayland-selection.c
Normal file
@ -0,0 +1,944 @@
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/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the copyright holders not be used in
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* advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. The copyright holders make
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* The file is loosely based on xwayland/selection.c from Weston */
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#include "config.h"
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#define _GNU_SOURCE
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <glib-unix.h>
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#include <gio/gunixoutputstream.h>
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#include <gio/gunixinputstream.h>
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#include <gdk/gdkx.h>
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#include <X11/Xatom.h>
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#include <meta/errors.h>
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#include "meta-xwayland-private.h"
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#include "meta-wayland-data-device.h"
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#define INCR_CHUNK_SIZE (128 * 1024)
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typedef struct {
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MetaXWaylandSelection *selection_data;
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GInputStream *stream;
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GCancellable *cancellable;
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MetaWindow *window;
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XSelectionRequestEvent request_event;
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guchar buffer[INCR_CHUNK_SIZE];
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gsize buffer_len;
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guint incr : 1;
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} WaylandSelectionData;
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typedef struct {
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MetaXWaylandSelection *selection_data;
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GOutputStream *stream;
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GCancellable *cancellable;
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gchar *mime_type;
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guint selection : 3;
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guint incr : 1;
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} X11SelectionData;
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typedef struct {
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Atom selection_atom;
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Window window;
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Window owner;
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Time timestamp;
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const MetaWaylandDataSource *source;
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WaylandSelectionData *wayland_selection;
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X11SelectionData *x11_selection;
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struct wl_listener ownership_listener;
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} MetaSelectionBridge;
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struct _MetaXWaylandSelection {
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MetaSelectionBridge clipboard;
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};
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static MetaSelectionBridge *
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atom_to_selection_bridge (MetaWaylandCompositor *compositor,
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Atom selection_atom)
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{
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MetaXWaylandSelection *selection_data = compositor->xwayland_manager.selection_data;
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if (selection_atom == selection_data->clipboard.selection_atom)
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return &selection_data->clipboard;
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else
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return NULL;
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}
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static X11SelectionData *
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x11_selection_data_new (MetaXWaylandSelection *selection_data,
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int fd,
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const char *mime_type)
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{
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X11SelectionData *data;
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data = g_slice_new0 (X11SelectionData);
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data->selection_data = selection_data;
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data->stream = g_unix_output_stream_new (fd, TRUE);
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data->cancellable = g_cancellable_new ();
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data->mime_type = g_strdup (mime_type);
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return data;
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}
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static void
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x11_selection_data_free (X11SelectionData *data)
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{
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g_cancellable_cancel (data->cancellable);
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g_object_unref (data->cancellable);
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g_object_unref (data->stream);
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g_free (data->mime_type);
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g_slice_free (X11SelectionData, data);
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}
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static void
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x11_data_write_cb (GObject *object,
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GAsyncResult *res,
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gpointer user_data)
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{
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MetaSelectionBridge *selection = user_data;
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X11SelectionData *data = selection->x11_selection;
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GError *error = NULL;
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g_output_stream_write_finish (G_OUTPUT_STREAM (object), res, &error);
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if (data->incr)
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{
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Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
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XDeleteProperty (xdisplay, selection->window,
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gdk_x11_get_xatom_by_name ("_META_SELECTION"));
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}
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if (error)
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{
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if (error->domain != G_IO_ERROR ||
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error->code != G_IO_ERROR_CANCELLED)
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g_warning ("Error writing from X11 selection: %s\n", error->message);
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g_error_free (error);
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}
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if (!data->incr)
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{
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g_clear_pointer (&selection->x11_selection,
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(GDestroyNotify) x11_selection_data_free);
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}
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}
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static void
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x11_selection_data_write (MetaSelectionBridge *selection,
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guchar *buffer,
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gulong len)
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{
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X11SelectionData *data = selection->x11_selection;
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g_output_stream_write_async (data->stream, buffer, len,
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G_PRIORITY_DEFAULT, data->cancellable,
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x11_data_write_cb, selection);
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}
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static MetaWaylandDataSource *
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data_device_get_active_source_for_atom (MetaWaylandDataDevice *data_device,
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Atom selection_atom)
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{
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if (selection_atom == gdk_x11_get_xatom_by_name ("CLIPBOARD"))
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return data_device->selection_data_source;
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else
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return NULL;
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}
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static WaylandSelectionData *
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wayland_selection_data_new (XSelectionRequestEvent *request_event,
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MetaWaylandCompositor *compositor)
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{
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MetaWaylandDataDevice *data_device;
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MetaWaylandDataSource *wayland_source;
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MetaSelectionBridge *selection;
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WaylandSelectionData *data;
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const gchar *mime_type;
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GError *error = NULL;
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int p[2];
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selection = atom_to_selection_bridge (compositor, request_event->selection);
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if (!selection)
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return NULL;
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if (!g_unix_open_pipe (p, FD_CLOEXEC, &error))
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{
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g_critical ("Failed to open pipe: %s\n", error->message);
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g_error_free (error);
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return NULL;
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}
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data_device = &compositor->seat->data_device;
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mime_type = gdk_x11_get_xatom_name (request_event->target);
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if (!g_unix_set_fd_nonblocking (p[0], TRUE, &error) ||
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!g_unix_set_fd_nonblocking (p[1], TRUE, &error))
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{
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if (error)
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{
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g_critical ("Failed to make fds non-blocking: %s\n", error->message);
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g_error_free (error);
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}
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close (p[0]);
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close (p[1]);
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return NULL;
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}
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wayland_source = data_device_get_active_source_for_atom (data_device,
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selection->selection_atom),
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meta_wayland_data_source_send (wayland_source, mime_type, p[1]);
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data = g_slice_new0 (WaylandSelectionData);
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data->request_event = *request_event;
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data->cancellable = g_cancellable_new ();
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data->stream = g_unix_input_stream_new (p[0], TRUE);
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data->window = meta_display_lookup_x_window (meta_get_display (),
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data->request_event.requestor);
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if (!data->window)
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{
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/* Not a managed window, set the PropertyChangeMask
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* for INCR deletion notifications.
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*/
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XSelectInput (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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data->request_event.requestor, PropertyChangeMask);
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}
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return data;
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}
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static void
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reply_selection_request (XSelectionRequestEvent *request_event,
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gboolean accepted)
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{
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Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
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XSelectionEvent event;
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memset(&event, 0, sizeof (XSelectionEvent));
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event.type = SelectionNotify;
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event.time = request_event->time;
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event.requestor = request_event->requestor;
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event.selection = request_event->selection;
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event.target = request_event->target;
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event.property = accepted ? request_event->property : None;
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XSendEvent (xdisplay, request_event->requestor,
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False, NoEventMask, (XEvent *) &event);
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}
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static void
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wayland_selection_data_free (WaylandSelectionData *data)
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{
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if (!data->window)
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{
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MetaDisplay *display = meta_get_display ();
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meta_error_trap_push (display);
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XSelectInput (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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data->request_event.requestor, NoEventMask);
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meta_error_trap_pop (display);
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}
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g_cancellable_cancel (data->cancellable);
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g_object_unref (data->cancellable);
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g_object_unref (data->stream);
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g_slice_free (WaylandSelectionData, data);
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}
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static void
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wayland_selection_update_x11_property (WaylandSelectionData *data)
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{
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Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
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XChangeProperty (xdisplay,
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data->request_event.requestor,
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data->request_event.property,
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data->request_event.target,
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8, PropModeReplace,
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data->buffer, data->buffer_len);
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data->buffer_len = 0;
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}
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static void
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wayland_data_read_cb (GObject *object,
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GAsyncResult *res,
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gpointer user_data)
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{
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MetaSelectionBridge *selection = user_data;
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WaylandSelectionData *data = selection->wayland_selection;
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GError *error = NULL;
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gsize bytes_read;
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bytes_read = g_input_stream_read_finish (G_INPUT_STREAM (object),
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res, &error);
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if (error)
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{
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g_warning ("Error transfering wayland clipboard to X11: %s\n",
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error->message);
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g_error_free (error);
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if (data)
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{
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reply_selection_request (&data->request_event, FALSE);
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g_clear_pointer (&selection->wayland_selection,
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(GDestroyNotify) wayland_selection_data_free);
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}
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return;
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}
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data->buffer_len = bytes_read;
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if (bytes_read == INCR_CHUNK_SIZE)
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{
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if (!data->incr)
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{
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Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
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guint32 incr_chunk_size = INCR_CHUNK_SIZE;
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/* Not yet in incr */
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data->incr = TRUE;
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XChangeProperty (xdisplay,
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data->request_event.requestor,
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data->request_event.property,
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gdk_x11_get_xatom_by_name ("INCR"),
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32, PropModeReplace,
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(guchar *) &incr_chunk_size, 1);
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reply_selection_request (&data->request_event, TRUE);
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}
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else
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wayland_selection_update_x11_property (data);
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}
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else
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{
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if (!data->incr)
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{
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/* Non-incr transfer finished */
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wayland_selection_update_x11_property (data);
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reply_selection_request (&data->request_event, TRUE);
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}
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else if (data->incr)
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{
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/* Incr transfer complete, setting a new property */
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wayland_selection_update_x11_property (data);
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if (bytes_read > 0)
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return;
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}
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g_clear_pointer (&selection->wayland_selection,
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(GDestroyNotify) wayland_selection_data_free);
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}
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}
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static void
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wayland_selection_data_read (MetaSelectionBridge *selection)
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{
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WaylandSelectionData *data = selection->wayland_selection;
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g_input_stream_read_async (data->stream, data->buffer,
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INCR_CHUNK_SIZE, G_PRIORITY_DEFAULT,
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data->cancellable,
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wayland_data_read_cb, selection);
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}
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static void
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meta_xwayland_selection_get_incr_chunk (MetaWaylandCompositor *compositor,
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MetaSelectionBridge *selection)
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{
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Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
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gulong nitems_ret, bytes_after_ret;
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guchar *prop_ret;
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int format_ret;
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Atom type_ret;
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XGetWindowProperty (xdisplay,
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selection->window,
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gdk_x11_get_xatom_by_name ("_META_SELECTION"),
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0, /* offset */
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0x1fffffff, /* length */
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False, /* delete */
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AnyPropertyType,
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&type_ret,
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&format_ret,
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&nitems_ret,
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&bytes_after_ret,
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&prop_ret);
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if (nitems_ret > 0)
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{
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x11_selection_data_write (selection, prop_ret, nitems_ret);
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}
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else
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{
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/* Transfer has completed */
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g_clear_pointer (&selection->x11_selection,
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(GDestroyNotify) x11_selection_data_free);
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}
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XFree (prop_ret);
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}
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static void
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meta_x11_source_send (MetaWaylandDataSource *source,
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const gchar *mime_type,
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gint fd)
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{
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MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
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Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
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MetaSelectionBridge *selection = source->user_data;
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Atom type_atom;
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if (strcmp (mime_type, "text/plain;charset=utf-8") == 0)
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type_atom = gdk_x11_get_xatom_by_name ("UTF8_STRING");
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else
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type_atom = gdk_x11_get_xatom_by_name (mime_type);
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g_clear_pointer (&selection->x11_selection,
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(GDestroyNotify) x11_selection_data_free);
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/* Takes ownership of fd */
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selection->x11_selection =
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x11_selection_data_new (compositor->xwayland_manager.selection_data,
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fd, mime_type);
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XConvertSelection (xdisplay,
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selection->selection_atom, type_atom,
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gdk_x11_get_xatom_by_name ("_META_SELECTION"),
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selection->window,
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CurrentTime);
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XFlush (xdisplay);
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}
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static void
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meta_x11_source_target (MetaWaylandDataSource *source,
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const gchar *mime_type)
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{
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}
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static void
|
||||
meta_x11_source_cancel (MetaWaylandDataSource *source)
|
||||
{
|
||||
MetaSelectionBridge *selection = source->user_data;
|
||||
|
||||
g_clear_pointer (&selection->x11_selection,
|
||||
(GDestroyNotify) x11_selection_data_free);
|
||||
}
|
||||
|
||||
static const MetaWaylandDataSourceFuncs meta_x11_source_funcs = {
|
||||
meta_x11_source_send,
|
||||
meta_x11_source_target,
|
||||
meta_x11_source_cancel
|
||||
};
|
||||
|
||||
static gboolean
|
||||
meta_xwayland_data_source_fetch_mimetype_list (MetaWaylandDataSource *source,
|
||||
Window window,
|
||||
Atom prop)
|
||||
{
|
||||
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
|
||||
gulong nitems_ret, bytes_after_ret, i;
|
||||
Atom *atoms, type_ret, utf8_string;
|
||||
int format_ret;
|
||||
|
||||
utf8_string = gdk_x11_get_xatom_by_name ("UTF8_STRING");
|
||||
XGetWindowProperty (xdisplay, window, prop,
|
||||
0, /* offset */
|
||||
0x1fffffff, /* length */
|
||||
True, /* delete */
|
||||
AnyPropertyType,
|
||||
&type_ret,
|
||||
&format_ret,
|
||||
&nitems_ret,
|
||||
&bytes_after_ret,
|
||||
(guchar **) &atoms);
|
||||
|
||||
if (nitems_ret == 0 || type_ret != XA_ATOM)
|
||||
{
|
||||
XFree (atoms);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
for (i = 0; i < nitems_ret; i++)
|
||||
{
|
||||
const gchar *mime_type;
|
||||
|
||||
if (atoms[i] == utf8_string)
|
||||
mime_type = "text/plain;charset=utf-8";
|
||||
else
|
||||
mime_type = gdk_x11_get_xatom_name (atoms[i]);
|
||||
|
||||
meta_wayland_data_source_add_mime_type (source, mime_type);
|
||||
}
|
||||
|
||||
XFree (atoms);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
meta_xwayland_selection_get_x11_targets (MetaWaylandCompositor *compositor,
|
||||
MetaSelectionBridge *selection)
|
||||
{
|
||||
MetaWaylandDataSource *data_source;
|
||||
|
||||
data_source = meta_wayland_data_source_new (&meta_x11_source_funcs,
|
||||
NULL, selection);
|
||||
|
||||
if (meta_xwayland_data_source_fetch_mimetype_list (data_source,
|
||||
selection->window,
|
||||
gdk_x11_get_xatom_by_name ("_META_SELECTION")))
|
||||
{
|
||||
selection->source = data_source;
|
||||
|
||||
if (selection->selection_atom == gdk_x11_get_xatom_by_name ("CLIPBOARD"))
|
||||
{
|
||||
meta_wayland_data_device_set_selection (&compositor->seat->data_device, data_source,
|
||||
wl_display_next_serial (compositor->wayland_display));
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
meta_wayland_data_source_free (data_source);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
meta_xwayland_selection_get_x11_data (MetaWaylandCompositor *compositor,
|
||||
MetaSelectionBridge *selection)
|
||||
{
|
||||
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
|
||||
gulong nitems_ret, bytes_after_ret;
|
||||
guchar *prop_ret;
|
||||
int format_ret;
|
||||
Atom type_ret;
|
||||
|
||||
if (!selection->x11_selection)
|
||||
return;
|
||||
|
||||
XGetWindowProperty (xdisplay,
|
||||
selection->window,
|
||||
gdk_x11_get_xatom_by_name ("_META_SELECTION"),
|
||||
0, /* offset */
|
||||
0x1fffffff, /* length */
|
||||
True, /* delete */
|
||||
AnyPropertyType,
|
||||
&type_ret,
|
||||
&format_ret,
|
||||
&nitems_ret,
|
||||
&bytes_after_ret,
|
||||
&prop_ret);
|
||||
|
||||
selection->x11_selection->incr = (type_ret == gdk_x11_get_xatom_by_name ("INCR"));
|
||||
|
||||
if (selection->x11_selection->incr)
|
||||
return;
|
||||
|
||||
if (type_ret == gdk_x11_get_xatom_by_name (selection->x11_selection->mime_type))
|
||||
x11_selection_data_write (selection, prop_ret, nitems_ret);
|
||||
|
||||
XFree (prop_ret);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
meta_xwayland_selection_handle_selection_notify (MetaWaylandCompositor *compositor,
|
||||
XEvent *xevent)
|
||||
{
|
||||
XSelectionEvent *event = (XSelectionEvent *) xevent;
|
||||
MetaSelectionBridge *selection;
|
||||
|
||||
selection = atom_to_selection_bridge (compositor, event->selection);
|
||||
|
||||
if (!selection)
|
||||
return FALSE;
|
||||
|
||||
/* convert selection failed */
|
||||
if (event->property == None)
|
||||
{
|
||||
g_clear_pointer (&selection->x11_selection,
|
||||
(GDestroyNotify) x11_selection_data_free);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (event->target == gdk_x11_get_xatom_by_name ("TARGETS"))
|
||||
meta_xwayland_selection_get_x11_targets (compositor, selection);
|
||||
else
|
||||
meta_xwayland_selection_get_x11_data (compositor, selection);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
meta_xwayland_selection_send_targets (MetaWaylandCompositor *compositor,
|
||||
const MetaWaylandDataSource *data_source,
|
||||
Window requestor,
|
||||
Atom property)
|
||||
{
|
||||
Atom *targets;
|
||||
gchar **p;
|
||||
int i = 0;
|
||||
|
||||
if (!data_source)
|
||||
return;
|
||||
|
||||
if (data_source->mime_types.size == 0)
|
||||
return;
|
||||
|
||||
/* Make extra room for TIMESTAMP/TARGETS */
|
||||
targets = g_new (Atom, data_source->mime_types.size + 2);
|
||||
|
||||
wl_array_for_each (p, &data_source->mime_types)
|
||||
{
|
||||
targets[i++] = gdk_x11_get_xatom_by_name (*p);
|
||||
}
|
||||
|
||||
targets[i++] = gdk_x11_get_xatom_by_name ("TIMESTAMP");
|
||||
targets[i++] = gdk_x11_get_xatom_by_name ("TARGETS");
|
||||
|
||||
XChangeProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
|
||||
requestor, property,
|
||||
XA_ATOM, 32, PropModeReplace,
|
||||
(guchar *) targets, i);
|
||||
|
||||
g_free (targets);
|
||||
}
|
||||
|
||||
static void
|
||||
meta_xwayland_selection_send_timestamp (MetaWaylandCompositor *compositor,
|
||||
Window requestor,
|
||||
Atom property,
|
||||
Time timestamp)
|
||||
{
|
||||
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
|
||||
|
||||
XChangeProperty (xdisplay, requestor, property,
|
||||
XA_INTEGER, 32,
|
||||
PropModeReplace,
|
||||
(guchar *) ×tamp, 1);
|
||||
}
|
||||
|
||||
static void
|
||||
meta_xwayland_selection_send_incr_chunk (MetaWaylandCompositor *compositor,
|
||||
MetaSelectionBridge *selection)
|
||||
{
|
||||
if (!selection->wayland_selection)
|
||||
return;
|
||||
|
||||
if (selection->wayland_selection->buffer_len > 0)
|
||||
wayland_selection_update_x11_property (selection->wayland_selection);
|
||||
else
|
||||
wayland_selection_data_read (selection);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
handle_incr_chunk (MetaWaylandCompositor *compositor,
|
||||
MetaSelectionBridge *selection,
|
||||
XPropertyEvent *event)
|
||||
{
|
||||
if (selection->x11_selection &&
|
||||
selection->x11_selection->incr &&
|
||||
event->window == selection->owner &&
|
||||
event->state == PropertyNewValue &&
|
||||
event->atom == gdk_x11_get_xatom_by_name ("_META_SELECTION"))
|
||||
{
|
||||
/* X11 to Wayland */
|
||||
meta_xwayland_selection_get_incr_chunk (compositor, selection);
|
||||
return TRUE;
|
||||
}
|
||||
else if (selection->wayland_selection &&
|
||||
selection->wayland_selection->incr &&
|
||||
event->window == selection->window &&
|
||||
event->state == PropertyDelete &&
|
||||
event->atom == selection->wayland_selection->request_event.property)
|
||||
{
|
||||
/* Wayland to X11 */
|
||||
meta_xwayland_selection_send_incr_chunk (compositor, selection);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
meta_xwayland_selection_handle_property_notify (MetaWaylandCompositor *compositor,
|
||||
XEvent *xevent)
|
||||
{
|
||||
MetaXWaylandSelection *selection_data = compositor->xwayland_manager.selection_data;
|
||||
XPropertyEvent *event = (XPropertyEvent *) xevent;
|
||||
|
||||
return handle_incr_chunk (compositor, &selection_data->clipboard, event);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
meta_xwayland_selection_handle_selection_request (MetaWaylandCompositor *compositor,
|
||||
XEvent *xevent)
|
||||
{
|
||||
XSelectionRequestEvent *event = (XSelectionRequestEvent *) xevent;
|
||||
MetaWaylandDataSource *data_source;
|
||||
MetaSelectionBridge *selection;
|
||||
|
||||
selection = atom_to_selection_bridge (compositor, event->selection);
|
||||
|
||||
if (!selection)
|
||||
return FALSE;
|
||||
|
||||
/* We must fetch from the currently active source, not the Xwayland one */
|
||||
data_source = data_device_get_active_source_for_atom (&compositor->seat->data_device,
|
||||
selection->selection_atom);
|
||||
if (!data_source)
|
||||
return FALSE;
|
||||
|
||||
g_clear_pointer (&selection->wayland_selection,
|
||||
(GDestroyNotify) wayland_selection_data_free);
|
||||
|
||||
if (event->target == gdk_x11_get_xatom_by_name ("TARGETS"))
|
||||
{
|
||||
meta_xwayland_selection_send_targets (compositor,
|
||||
data_source,
|
||||
event->requestor,
|
||||
event->property);
|
||||
reply_selection_request (event, TRUE);
|
||||
}
|
||||
else if (event->target == gdk_x11_get_xatom_by_name ("TIMESTAMP"))
|
||||
{
|
||||
meta_xwayland_selection_send_timestamp (compositor,
|
||||
event->requestor, event->property,
|
||||
selection->timestamp);
|
||||
reply_selection_request (event, TRUE);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (data_source &&
|
||||
meta_wayland_data_source_has_mime_type (data_source,
|
||||
gdk_x11_get_xatom_name (event->target)))
|
||||
{
|
||||
selection->wayland_selection = wayland_selection_data_new (event,
|
||||
compositor);
|
||||
|
||||
if (selection->wayland_selection)
|
||||
wayland_selection_data_read (selection);
|
||||
}
|
||||
|
||||
if (!selection->wayland_selection)
|
||||
reply_selection_request (event, FALSE);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
meta_xwayland_selection_handle_xfixes_selection_notify (MetaWaylandCompositor *compositor,
|
||||
XEvent *xevent)
|
||||
{
|
||||
XFixesSelectionNotifyEvent *event = (XFixesSelectionNotifyEvent *) xevent;
|
||||
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
|
||||
MetaSelectionBridge *selection;
|
||||
|
||||
selection = atom_to_selection_bridge (compositor, event->selection);
|
||||
|
||||
if (!selection)
|
||||
return FALSE;
|
||||
|
||||
if (event->owner == None)
|
||||
{
|
||||
if (selection->source && selection->owner != selection->window)
|
||||
{
|
||||
/* An X client went away, clear the selection */
|
||||
if (selection->selection_atom == gdk_x11_get_xatom_by_name ("CLIPBOARD"))
|
||||
{
|
||||
meta_wayland_data_device_set_selection (&compositor->seat->data_device, NULL,
|
||||
wl_display_next_serial (compositor->wayland_display));
|
||||
}
|
||||
selection->source = NULL;
|
||||
}
|
||||
|
||||
selection->owner = None;
|
||||
}
|
||||
else
|
||||
{
|
||||
selection->owner = event->owner;
|
||||
|
||||
if (selection->owner == selection->window)
|
||||
{
|
||||
/* This our own selection window */
|
||||
selection->timestamp = event->timestamp;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
g_clear_pointer (&selection->x11_selection,
|
||||
(GDestroyNotify) x11_selection_data_free);
|
||||
|
||||
XConvertSelection (xdisplay,
|
||||
event->selection,
|
||||
gdk_x11_get_xatom_by_name ("TARGETS"),
|
||||
gdk_x11_get_xatom_by_name ("_META_SELECTION"),
|
||||
selection->window,
|
||||
selection->timestamp);
|
||||
XFlush (xdisplay);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
meta_xwayland_selection_handle_event (XEvent *xevent)
|
||||
{
|
||||
MetaWaylandCompositor *compositor;
|
||||
|
||||
compositor = meta_wayland_compositor_get_default ();
|
||||
|
||||
if (!compositor->xwayland_manager.selection_data)
|
||||
return FALSE;
|
||||
|
||||
switch (xevent->type)
|
||||
{
|
||||
case SelectionNotify:
|
||||
return meta_xwayland_selection_handle_selection_notify (compositor, xevent);
|
||||
case PropertyNotify:
|
||||
return meta_xwayland_selection_handle_property_notify (compositor, xevent);
|
||||
case SelectionRequest:
|
||||
return meta_xwayland_selection_handle_selection_request (compositor, xevent);
|
||||
default:
|
||||
{
|
||||
MetaDisplay *display = meta_get_display ();
|
||||
|
||||
if (xevent->type - display->xfixes_event_base == XFixesSelectionNotify)
|
||||
return meta_xwayland_selection_handle_xfixes_selection_notify (compositor, xevent);
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
meta_selection_bridge_ownership_notify (struct wl_listener *listener,
|
||||
void *data)
|
||||
{
|
||||
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
|
||||
MetaSelectionBridge *selection =
|
||||
wl_container_of (listener, selection, ownership_listener);
|
||||
MetaWaylandDataSource *owner = data;
|
||||
|
||||
if (!owner && selection->window == selection->owner)
|
||||
{
|
||||
XSetSelectionOwner (xdisplay, selection->selection_atom,
|
||||
None, selection->timestamp);
|
||||
}
|
||||
else if (selection->source != owner)
|
||||
{
|
||||
XSetSelectionOwner (xdisplay,
|
||||
selection->selection_atom,
|
||||
selection->window,
|
||||
CurrentTime);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
init_selection_bridge (MetaSelectionBridge *selection,
|
||||
Atom selection_atom,
|
||||
struct wl_signal *signal)
|
||||
{
|
||||
Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
|
||||
XSetWindowAttributes attributes;
|
||||
guint mask;
|
||||
|
||||
attributes.event_mask = PropertyChangeMask;
|
||||
|
||||
selection->ownership_listener.notify = meta_selection_bridge_ownership_notify;
|
||||
wl_signal_add (signal, &selection->ownership_listener);
|
||||
|
||||
selection->selection_atom = selection_atom;
|
||||
selection->window =
|
||||
XCreateWindow (xdisplay,
|
||||
gdk_x11_window_get_xid (gdk_get_default_root_window ()),
|
||||
-1, -1, 1, 1, /* position */
|
||||
0, /* border width */
|
||||
0, /* depth */
|
||||
InputOnly, /* class */
|
||||
CopyFromParent, /* visual */
|
||||
CWEventMask,
|
||||
&attributes);
|
||||
|
||||
mask = XFixesSetSelectionOwnerNotifyMask |
|
||||
XFixesSelectionWindowDestroyNotifyMask |
|
||||
XFixesSelectionClientCloseNotifyMask;
|
||||
|
||||
XFixesSelectSelectionInput (xdisplay, selection->window,
|
||||
selection_atom, mask);
|
||||
}
|
||||
|
||||
static void
|
||||
shutdown_selection_bridge (MetaSelectionBridge *selection)
|
||||
{
|
||||
wl_list_remove (&selection->ownership_listener.link);
|
||||
|
||||
XDestroyWindow (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
|
||||
selection->window);
|
||||
g_clear_pointer (&selection->wayland_selection,
|
||||
(GDestroyNotify) wayland_selection_data_free);
|
||||
g_clear_pointer (&selection->x11_selection,
|
||||
(GDestroyNotify) x11_selection_data_free);
|
||||
}
|
||||
|
||||
void
|
||||
meta_xwayland_init_selection (void)
|
||||
{
|
||||
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
|
||||
MetaXWaylandManager *manager = &compositor->xwayland_manager;
|
||||
|
||||
g_assert (manager->selection_data == NULL);
|
||||
|
||||
manager->selection_data = g_slice_new0 (MetaXWaylandSelection);
|
||||
|
||||
init_selection_bridge (&manager->selection_data->clipboard,
|
||||
gdk_x11_get_xatom_by_name ("CLIPBOARD"),
|
||||
&compositor->seat->data_device.selection_ownership_signal);
|
||||
}
|
||||
|
||||
void
|
||||
meta_xwayland_shutdown_selection (void)
|
||||
{
|
||||
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
|
||||
MetaXWaylandManager *manager = &compositor->xwayland_manager;
|
||||
MetaXWaylandSelection *selection = manager->selection_data;
|
||||
|
||||
g_assert (selection != NULL);
|
||||
|
||||
if (selection->clipboard.source)
|
||||
{
|
||||
meta_wayland_data_device_set_selection (&compositor->seat->data_device, NULL,
|
||||
wl_display_next_serial (compositor->wayland_display));
|
||||
}
|
||||
|
||||
shutdown_selection_bridge (&selection->clipboard);
|
||||
|
||||
g_slice_free (MetaXWaylandSelection, selection);
|
||||
manager->selection_data = NULL;
|
||||
}
|
||||
@ -522,6 +522,8 @@ meta_xwayland_complete_init (void)
|
||||
we won't reset the tty).
|
||||
*/
|
||||
XSetIOErrorHandler (x_io_error);
|
||||
|
||||
meta_xwayland_init_selection ();
|
||||
}
|
||||
|
||||
void
|
||||
@ -529,6 +531,8 @@ meta_xwayland_stop (MetaXWaylandManager *manager)
|
||||
{
|
||||
char path[256];
|
||||
|
||||
meta_xwayland_shutdown_selection ();
|
||||
|
||||
snprintf (path, sizeof path, "/tmp/.X11-unix/X%d", manager->display_index);
|
||||
unlink (path);
|
||||
|
||||
|
||||
@ -39,6 +39,7 @@
|
||||
#ifdef HAVE_WAYLAND
|
||||
#include "wayland/meta-xwayland.h"
|
||||
#include "wayland/meta-wayland-private.h"
|
||||
#include "wayland/meta-xwayland-private.h"
|
||||
#endif
|
||||
|
||||
static XIEvent *
|
||||
@ -1676,6 +1677,15 @@ meta_display_handle_xevent (MetaDisplay *display,
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_WAYLAND
|
||||
if (meta_is_wayland_compositor () &&
|
||||
meta_xwayland_selection_handle_event (event))
|
||||
{
|
||||
bypass_gtk = bypass_compositor = TRUE;
|
||||
goto out;
|
||||
}
|
||||
#endif
|
||||
|
||||
display->current_time = event_get_time (display, event);
|
||||
display->monitor_cache_invalidated = TRUE;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user