forked from AuroraMiddleware/gtk
wayland: Implement drag/source side of selections
This has been made to work similarly to X11, requests for the data device contents are notified through GDK_SELECTION_REQUEST events, the data stored in the GDK_SELECTION property as a reaction to that event is then stored into the wayland selection implementation, and written to the fd when requested/available. https://bugzilla.gnome.org/show_bug.cgi?id=697855
This commit is contained in:
Carlos Garnacho
parent
3b953041a9
commit
7744799072
@ -2173,3 +2173,29 @@ gdk_wayland_device_unset_touch_grab (GdkDevice *gdk_device,
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_gdk_display_end_touch_grab (gdk_device_get_display (gdk_device),
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gdk_device, sequence);
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}
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struct wl_data_device *
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gdk_wayland_device_get_data_device (GdkDevice *gdk_device)
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{
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GdkWaylandDeviceData *device;
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g_return_val_if_fail (GDK_IS_WAYLAND_DEVICE (gdk_device), NULL);
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device = GDK_WAYLAND_DEVICE (gdk_device)->device;
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return device->data_device;
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}
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void
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gdk_wayland_device_set_selection (GdkDevice *gdk_device,
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struct wl_data_source *source)
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{
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GdkWaylandDeviceData *device;
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GdkWaylandDisplay *display_wayland;
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g_return_if_fail (GDK_IS_WAYLAND_DEVICE (gdk_device));
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device = GDK_WAYLAND_DEVICE (gdk_device)->device;
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display_wayland = GDK_WAYLAND_DISPLAY (gdk_device_get_display (gdk_device));
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wl_data_device_set_selection (device->data_device, source,
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_gdk_wayland_display_get_serial (display_wayland));
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}
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@ -147,6 +147,9 @@ uint32_t _gdk_wayland_device_get_implicit_grab_serial(GdkWaylandDevice *device,
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const GdkEvent *event);
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uint32_t _gdk_wayland_device_get_last_implicit_grab_serial (GdkWaylandDevice *device,
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GdkEventSequence **seqence);
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struct wl_data_device * gdk_wayland_device_get_data_device (GdkDevice *gdk_device);
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void gdk_wayland_device_set_selection (GdkDevice *gdk_device,
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struct wl_data_source *source);
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void gdk_wayland_device_unset_touch_grab (GdkDevice *device,
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GdkEventSequence *sequence);
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@ -201,4 +204,14 @@ void gdk_wayland_selection_set_offer (struct wl_data_offer *offer);
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struct wl_data_offer * gdk_wayland_selection_get_offer (void);
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GList * gdk_wayland_selection_get_targets (void);
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void gdk_wayland_selection_store (GdkWindow *window,
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GdkAtom type,
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GdkPropMode mode,
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const guchar *data,
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gint len);
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struct wl_data_source * gdk_wayland_selection_get_data_source (GdkWindow *owner,
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GdkAtom selection);
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void gdk_wayland_selection_unset_data_source (GdkAtom selection);
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#endif /* __GDK_PRIVATE_WAYLAND_H__ */
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@ -60,6 +60,13 @@ struct _DataSourceData
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GdkAtom selection;
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};
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enum {
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ATOM_CLIPBOARD,
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ATOM_DND
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};
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static GdkAtom atoms[2] = { 0 };
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struct _GdkWaylandSelection
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{
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/* Destination-side data */
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@ -245,6 +252,10 @@ gdk_wayland_selection_new (void)
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{
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GdkWaylandSelection *selection;
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/* init atoms */
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atoms[ATOM_CLIPBOARD] = gdk_atom_intern_static_string ("CLIPBOARD");
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atoms[ATOM_DND] = gdk_atom_intern_static_string ("GdkWaylandSelection");
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selection = g_new0 (GdkWaylandSelection, 1);
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selection->selection_buffers = g_hash_table_new_full (NULL, NULL, NULL,
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(GDestroyNotify) selection_buffer_cancel_and_unref);
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@ -335,6 +346,103 @@ gdk_wayland_selection_get_targets (void)
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return selection->targets;
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}
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void
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gdk_wayland_selection_emit_request (GdkWindow *window,
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GdkAtom selection,
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GdkAtom target)
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{
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GdkEvent *event;
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event = gdk_event_new (GDK_SELECTION_REQUEST);
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event->selection.window = g_object_ref (window);
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event->selection.send_event = FALSE;
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event->selection.selection = selection;
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event->selection.target = target;
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event->selection.property = gdk_atom_intern_static_string ("GDK_SELECTION");
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event->selection.time = GDK_CURRENT_TIME;
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event->selection.requestor = g_object_ref (window);
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gdk_event_put (event);
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gdk_event_free (event);
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}
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gboolean
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gdk_wayland_selection_check_write (GdkWaylandSelection *selection)
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{
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gssize len, bytes_written = 0;
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gchar *buf;
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if (selection->stored_selection.fd < 0 ||
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selection->stored_selection.data_len == 0)
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return FALSE;
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len = selection->stored_selection.data_len;
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buf = (gchar *) selection->stored_selection.data;
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while (len > 0)
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{
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bytes_written += write (selection->stored_selection.fd,
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buf + bytes_written, len);
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if (bytes_written < 0)
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break;
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len -= bytes_written;
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}
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close (selection->stored_selection.fd);
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selection->stored_selection.fd = -1;
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return bytes_written != 0;
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}
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void
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gdk_wayland_selection_store (GdkWindow *window,
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GdkAtom type,
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GdkPropMode mode,
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const guchar *data,
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gint len)
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{
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GdkDisplay *display = gdk_display_get_default ();
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GdkWaylandSelection *selection = gdk_wayland_display_get_selection (display);
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GArray *array;
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array = g_array_new (TRUE, FALSE, sizeof (guchar));
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g_array_append_vals (array, data, len);
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if (selection->stored_selection.data)
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{
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if (mode != GDK_PROP_MODE_REPLACE &&
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type != selection->stored_selection.type)
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{
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g_warning (G_STRLOC ": Attempted to append/prepend selection data with "
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"type %s into the current selection with type %s",
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gdk_atom_name (type),
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gdk_atom_name (selection->stored_selection.type));
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return;
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}
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/* In these cases we also replace the stored data, so we
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* apply the inverse operation into the just given data.
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*/
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if (mode == GDK_PROP_MODE_APPEND)
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g_array_prepend_vals (array, selection->stored_selection.data,
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selection->stored_selection.data_len - 1);
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else if (mode == GDK_PROP_MODE_PREPEND)
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g_array_append_vals (array, selection->stored_selection.data,
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selection->stored_selection.data_len - 1);
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g_free (selection->stored_selection.data);
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}
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selection->stored_selection.source = window;
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selection->stored_selection.data_len = array->len;
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selection->stored_selection.data = (guchar *) g_array_free (array, FALSE);
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selection->stored_selection.type = type;
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gdk_wayland_selection_check_write (selection);
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}
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static SelectionBuffer *
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gdk_wayland_selection_lookup_requestor_buffer (GdkWindow *requestor)
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{
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@ -354,6 +462,205 @@ gdk_wayland_selection_lookup_requestor_buffer (GdkWindow *requestor)
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return NULL;
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}
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static gboolean
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gdk_wayland_selection_request_target (GdkWaylandSelection *wayland_selection,
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GdkWindow *window,
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GdkAtom target,
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gint fd)
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{
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GdkAtom selection;
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if (wayland_selection->clipboard_owner == window)
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selection = atoms[ATOM_CLIPBOARD];
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else if (wayland_selection->dnd_owner == window)
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selection = atoms[ATOM_DND];
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else
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return FALSE;
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if (fd >= 0)
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wayland_selection->stored_selection.fd = fd;
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if (wayland_selection->source_requested_target == target)
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return FALSE;
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wayland_selection->source_requested_target = target;
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if (window && target != GDK_NONE)
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{
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gdk_wayland_selection_emit_request (window, selection, target);
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return TRUE;
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}
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return FALSE;
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}
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static void
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data_source_target (void *data,
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struct wl_data_source *source,
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const char *mime_type)
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{
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GdkWaylandSelection *wayland_selection = data;
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GdkDragContext *context;
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GdkWindow *window;
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g_debug (G_STRLOC ": %s source = %p, mime_type = %s",
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G_STRFUNC, source, mime_type);
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if (!mime_type)
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return;
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if (source == wayland_selection->dnd_source)
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window = wayland_selection->dnd_owner;
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else if (source == wayland_selection->clipboard_source)
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window = wayland_selection->clipboard_owner;
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else
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return;
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gdk_wayland_selection_request_target (wayland_selection, window,
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gdk_atom_intern (mime_type, FALSE),
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-1);
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}
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static void
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data_source_send (void *data,
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struct wl_data_source *source,
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const char *mime_type,
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int32_t fd)
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{
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GdkWaylandSelection *wayland_selection = data;
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GdkWindow *window;
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g_debug (G_STRLOC ": %s source = %p, mime_type = %s, fd = %d",
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G_STRFUNC, source, mime_type, fd);
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if (!mime_type)
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return;
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if (source == wayland_selection->dnd_source)
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window = wayland_selection->dnd_owner;
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else if (source == wayland_selection->clipboard_source)
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window = wayland_selection->clipboard_owner;
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else
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return;
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if (!gdk_wayland_selection_request_target (wayland_selection, window,
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gdk_atom_intern (mime_type, FALSE),
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fd))
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gdk_wayland_selection_check_write (wayland_selection);
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wayland_selection->source_requested_target = GDK_NONE;
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}
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static void
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data_source_cancelled (void *data,
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struct wl_data_source *source)
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{
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GdkWaylandSelection *wayland_selection = data;
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g_debug (G_STRLOC ": %s source = %p",
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G_STRFUNC, source);
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if (source == wayland_selection->dnd_source)
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gdk_wayland_selection_unset_data_source (atoms[ATOM_DND]);
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else if (source == wayland_selection->clipboard_source)
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gdk_wayland_selection_unset_data_source (atoms[ATOM_CLIPBOARD]);
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}
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static const struct wl_data_source_listener data_source_listener = {
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data_source_target,
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data_source_send,
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data_source_cancelled
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};
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struct wl_data_source *
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gdk_wayland_selection_get_data_source (GdkWindow *owner,
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GdkAtom selection)
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{
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GdkDisplay *display = gdk_display_get_default ();
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GdkWaylandSelection *wayland_selection = gdk_wayland_display_get_selection (display);
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struct wl_data_source *source = NULL;
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GdkWaylandDisplay *display_wayland;
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gboolean is_clipboard = FALSE;
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if (selection == atoms[ATOM_DND])
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{
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if (wayland_selection->dnd_source &&
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(!owner || owner == wayland_selection->dnd_owner))
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return wayland_selection->dnd_source;
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}
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else if (selection == atoms[ATOM_CLIPBOARD])
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{
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if (wayland_selection->clipboard_source &&
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(!owner || owner == wayland_selection->clipboard_owner))
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return wayland_selection->clipboard_source;
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if (wayland_selection->clipboard_source)
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{
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wl_data_source_destroy (wayland_selection->clipboard_source);
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wayland_selection->clipboard_source = NULL;
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}
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is_clipboard = TRUE;
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}
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else
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return NULL;
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if (!owner)
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return NULL;
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display_wayland = GDK_WAYLAND_DISPLAY (gdk_window_get_display (owner));
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source = wl_data_device_manager_create_data_source (display_wayland->data_device_manager);
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wl_data_source_add_listener (source,
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&data_source_listener,
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wayland_selection);
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if (is_clipboard)
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{
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wayland_selection->clipboard_source = source;
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wayland_selection->clipboard_owner = owner;
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}
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else
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{
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wayland_selection->dnd_source = source;
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wayland_selection->dnd_owner = owner;
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}
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return source;
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}
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void
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gdk_wayland_selection_unset_data_source (GdkAtom selection)
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{
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GdkDisplay *display = gdk_display_get_default ();
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GdkWaylandSelection *wayland_selection = gdk_wayland_display_get_selection (display);
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if (selection == atoms[ATOM_CLIPBOARD])
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{
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GdkDeviceManager *device_manager;
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GdkDisplay *display;
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GdkDevice *device;
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display = gdk_display_get_default ();
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device_manager = gdk_display_get_device_manager (display);
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device = gdk_device_manager_get_client_pointer (device_manager);
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gdk_wayland_device_set_selection (device, NULL);
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wayland_selection->clipboard_owner = NULL;
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if (wayland_selection->clipboard_source)
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{
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wl_data_source_destroy (wayland_selection->clipboard_source);
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wayland_selection->clipboard_source = NULL;
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}
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}
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else if (selection == atoms[ATOM_DND])
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{
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wayland_selection->dnd_owner = NULL;
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wayland_selection->dnd_source = NULL;
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}
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}
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GdkWindow *
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_gdk_wayland_display_get_selection_owner (GdkDisplay *display,
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GdkAtom selection)
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@ -375,7 +682,20 @@ _gdk_wayland_display_set_selection_owner (GdkDisplay *display,
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guint32 time,
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gboolean send_event)
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{
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return TRUE;
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GdkWaylandSelection *wayland_selection = gdk_wayland_display_get_selection (display);
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if (selection == atoms[ATOM_CLIPBOARD])
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{
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wayland_selection->clipboard_owner = owner;
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return TRUE;
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}
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else if (selection == atoms[ATOM_DND])
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{
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wayland_selection->dnd_owner = owner;
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return TRUE;
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}
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return FALSE;
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}
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void
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@ -1949,6 +1949,8 @@ gdk_wayland_window_change_property (GdkWindow *window,
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const guchar *data,
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gint nelements)
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{
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if (property == gdk_atom_intern_static_string ("GDK_SELECTION"))
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gdk_wayland_selection_store (window, type, mode, data, nelements * (format / 8));
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}
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static void
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