1 | /* GDK - The GIMP Drawing Kit |
2 | * Copyright (C) 2017 Red Hat, Inc. |
3 | * |
4 | * This library is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU Lesser General Public |
6 | * License as published by the Free Software Foundation; either |
7 | * version 2 of the License, or (at your option) any later version. |
8 | * |
9 | * This library is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library. If not, see <http://www.gnu.org/licenses/>. |
16 | */ |
17 | |
18 | #include "config.h" |
19 | |
20 | #include "gdkprimary-wayland.h" |
21 | |
22 | #include "gdkclipboardprivate.h" |
23 | #include "gdkcontentformats.h" |
24 | #include "gdkintl.h" |
25 | #include "gdkprivate-wayland.h" |
26 | #include "gdk-private.h" |
27 | |
28 | #include <glib-unix.h> |
29 | #include <gio/gunixinputstream.h> |
30 | #include <gio/gunixoutputstream.h> |
31 | |
32 | typedef struct _GdkWaylandPrimaryClass GdkWaylandPrimaryClass; |
33 | |
34 | struct _GdkWaylandPrimary |
35 | { |
36 | GdkClipboard parent; |
37 | |
38 | struct zwp_primary_selection_device_v1 *primary_data_device; |
39 | |
40 | struct zwp_primary_selection_offer_v1 *pending; |
41 | GdkContentFormatsBuilder *pending_builder; |
42 | |
43 | struct zwp_primary_selection_offer_v1 *offer; |
44 | GdkContentFormats *offer_formats; |
45 | |
46 | struct zwp_primary_selection_source_v1 *source; |
47 | }; |
48 | |
49 | struct _GdkWaylandPrimaryClass |
50 | { |
51 | GdkClipboardClass parent_class; |
52 | }; |
53 | |
54 | G_DEFINE_TYPE (GdkWaylandPrimary, gdk_wayland_primary, GDK_TYPE_CLIPBOARD) |
55 | |
56 | static void |
57 | gdk_wayland_primary_discard_pending (GdkWaylandPrimary *cb) |
58 | { |
59 | if (cb->pending_builder) |
60 | { |
61 | GdkContentFormats *ignore = gdk_content_formats_builder_free_to_formats (builder: cb->pending_builder); |
62 | gdk_content_formats_unref (formats: ignore); |
63 | cb->pending_builder = NULL; |
64 | } |
65 | g_clear_pointer (&cb->pending, zwp_primary_selection_offer_v1_destroy); |
66 | } |
67 | |
68 | static void |
69 | gdk_wayland_primary_discard_offer (GdkWaylandPrimary *cb) |
70 | { |
71 | g_clear_pointer (&cb->offer_formats, gdk_content_formats_unref); |
72 | g_clear_pointer (&cb->offer, zwp_primary_selection_offer_v1_destroy); |
73 | } |
74 | |
75 | static void |
76 | gdk_wayland_primary_discard_source (GdkWaylandPrimary *cb) |
77 | { |
78 | g_clear_pointer (&cb->source, zwp_primary_selection_source_v1_destroy); |
79 | } |
80 | |
81 | static void |
82 | gdk_wayland_primary_finalize (GObject *object) |
83 | { |
84 | GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (object); |
85 | |
86 | gdk_wayland_primary_discard_pending (cb); |
87 | gdk_wayland_primary_discard_offer (cb); |
88 | gdk_wayland_primary_discard_source (cb); |
89 | |
90 | G_OBJECT_CLASS (gdk_wayland_primary_parent_class)->finalize (object); |
91 | } |
92 | |
93 | static void |
94 | gdk_wayland_primary_claim_remote (GdkWaylandPrimary *cb, |
95 | struct zwp_primary_selection_offer_v1 *offer, |
96 | GdkContentFormats *formats) |
97 | { |
98 | g_return_if_fail (GDK_IS_WAYLAND_PRIMARY (cb)); |
99 | |
100 | if (cb->source) |
101 | { |
102 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), CLIPBOARD, g_message ("%p: Ignoring clipboard offer for self" , cb)); |
103 | gdk_content_formats_unref (formats); |
104 | g_clear_pointer (&offer, zwp_primary_selection_offer_v1_destroy); |
105 | return; |
106 | } |
107 | |
108 | gdk_wayland_primary_discard_offer (cb); |
109 | |
110 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), CLIPBOARD, char *s = gdk_content_formats_to_string (formats); |
111 | g_message ("%p: remote clipboard claim for %s" , cb, s); |
112 | g_free (s); ); |
113 | cb->offer_formats = formats; |
114 | cb->offer = offer; |
115 | |
116 | gdk_clipboard_claim_remote (GDK_CLIPBOARD (cb), |
117 | formats: cb->offer_formats); |
118 | } |
119 | |
120 | static void |
121 | primary_offer_offer (void *data, |
122 | struct zwp_primary_selection_offer_v1 *offer, |
123 | const char *type) |
124 | { |
125 | GdkWaylandPrimary *cb = data; |
126 | |
127 | if (cb->pending != offer) |
128 | { |
129 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), SELECTION, g_message ("%p: offer for unknown selection %p of %s" , |
130 | cb, offer, type)); |
131 | return; |
132 | } |
133 | |
134 | gdk_content_formats_builder_add_mime_type (builder: cb->pending_builder, mime_type: type); |
135 | } |
136 | |
137 | static const struct zwp_primary_selection_offer_v1_listener primary_offer_listener = { |
138 | primary_offer_offer, |
139 | }; |
140 | |
141 | static void |
142 | primary_selection_data_offer (void *data, |
143 | struct zwp_primary_selection_device_v1 *device, |
144 | struct zwp_primary_selection_offer_v1 *offer) |
145 | { |
146 | GdkWaylandPrimary *cb = data; |
147 | |
148 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), SELECTION, g_message ("%p: new primary offer %p" , |
149 | cb, offer)); |
150 | |
151 | gdk_wayland_primary_discard_pending (cb); |
152 | |
153 | cb->pending = offer; |
154 | zwp_primary_selection_offer_v1_add_listener (offer, |
155 | &primary_offer_listener, |
156 | cb); |
157 | |
158 | cb->pending_builder = gdk_content_formats_builder_new (); |
159 | } |
160 | |
161 | static void |
162 | primary_selection_selection (void *data, |
163 | struct zwp_primary_selection_device_v1 *device, |
164 | struct zwp_primary_selection_offer_v1 *offer) |
165 | { |
166 | GdkWaylandPrimary *cb = data; |
167 | GdkContentFormats *formats; |
168 | |
169 | if (offer == NULL) |
170 | { |
171 | gdk_wayland_primary_claim_remote (cb, NULL, formats: gdk_content_formats_new (NULL, n_mime_types: 0)); |
172 | return; |
173 | } |
174 | |
175 | if (cb->pending != offer) |
176 | { |
177 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)), SELECTION, g_message ("%p: ignoring unknown data offer %p" , |
178 | cb, offer)); |
179 | return; |
180 | } |
181 | |
182 | formats = gdk_content_formats_builder_free_to_formats (builder: cb->pending_builder); |
183 | cb->pending_builder = NULL; |
184 | cb->pending = NULL; |
185 | |
186 | gdk_wayland_primary_claim_remote (cb, offer, formats); |
187 | } |
188 | |
189 | static const struct zwp_primary_selection_device_v1_listener primary_selection_device_listener = { |
190 | primary_selection_data_offer, |
191 | primary_selection_selection, |
192 | }; |
193 | |
194 | static void |
195 | gdk_wayland_primary_write_done (GObject *clipboard, |
196 | GAsyncResult *result, |
197 | gpointer user_data) |
198 | { |
199 | GError *error = NULL; |
200 | |
201 | if (!gdk_clipboard_write_finish (GDK_CLIPBOARD (clipboard), result, error: &error)) |
202 | { |
203 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (clipboard)), SELECTION, g_message ("%p: failed to write stream: %s" , clipboard, error->message)); |
204 | g_error_free (error); |
205 | } |
206 | } |
207 | |
208 | static void |
209 | gdk_wayland_primary_data_source_send (void *data, |
210 | struct zwp_primary_selection_source_v1 *source, |
211 | const char *mime_type, |
212 | int32_t fd) |
213 | { |
214 | GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (data); |
215 | GOutputStream *stream; |
216 | |
217 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (data)), SELECTION, g_message ("%p: data source send request for %s on fd %d" , |
218 | source, mime_type, fd)); |
219 | |
220 | mime_type = gdk_intern_mime_type (string: mime_type); |
221 | stream = g_unix_output_stream_new (fd, TRUE); |
222 | |
223 | gdk_clipboard_write_async (GDK_CLIPBOARD (cb), |
224 | mime_type, |
225 | stream, |
226 | G_PRIORITY_DEFAULT, |
227 | NULL, |
228 | callback: gdk_wayland_primary_write_done, |
229 | user_data: cb); |
230 | g_object_unref (object: stream); |
231 | } |
232 | |
233 | static void |
234 | gdk_wayland_primary_data_source_cancelled (void *data, |
235 | struct zwp_primary_selection_source_v1 *source) |
236 | { |
237 | GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (data); |
238 | |
239 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (GDK_CLIPBOARD (data)), CLIPBOARD, g_message ("%p: data source cancelled" , data)); |
240 | |
241 | if (cb->source == source) |
242 | { |
243 | gdk_wayland_primary_discard_source (cb); |
244 | gdk_wayland_primary_claim_remote (cb, NULL, formats: gdk_content_formats_new (NULL, n_mime_types: 0)); |
245 | } |
246 | } |
247 | |
248 | static const struct zwp_primary_selection_source_v1_listener primary_source_listener = { |
249 | gdk_wayland_primary_data_source_send, |
250 | gdk_wayland_primary_data_source_cancelled, |
251 | }; |
252 | |
253 | static gboolean |
254 | gdk_wayland_primary_claim (GdkClipboard *clipboard, |
255 | GdkContentFormats *formats, |
256 | gboolean local, |
257 | GdkContentProvider *content) |
258 | { |
259 | GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (clipboard); |
260 | |
261 | if (local) |
262 | { |
263 | GdkWaylandDisplay *wdisplay = GDK_WAYLAND_DISPLAY (gdk_clipboard_get_display (clipboard)); |
264 | const char * const *mime_types; |
265 | gsize i, n_mime_types; |
266 | |
267 | gdk_wayland_primary_discard_offer (cb); |
268 | gdk_wayland_primary_discard_source (cb); |
269 | |
270 | cb->source = zwp_primary_selection_device_manager_v1_create_source (wdisplay->primary_selection_manager); |
271 | zwp_primary_selection_source_v1_add_listener (cb->source, &primary_source_listener, cb); |
272 | |
273 | mime_types = gdk_content_formats_get_mime_types (formats, n_mime_types: &n_mime_types); |
274 | for (i = 0; i < n_mime_types; i++) |
275 | { |
276 | zwp_primary_selection_source_v1_offer (cb->source, mime_types[i]); |
277 | } |
278 | |
279 | zwp_primary_selection_device_v1_set_selection (cb->primary_data_device, |
280 | cb->source, |
281 | _gdk_wayland_display_get_serial (display_wayland: wdisplay)); |
282 | } |
283 | |
284 | return GDK_CLIPBOARD_CLASS (gdk_wayland_primary_parent_class)->claim (clipboard, formats, local, content); |
285 | } |
286 | |
287 | static void |
288 | gdk_wayland_primary_read_async (GdkClipboard *clipboard, |
289 | GdkContentFormats *formats, |
290 | int io_priority, |
291 | GCancellable *cancellable, |
292 | GAsyncReadyCallback callback, |
293 | gpointer user_data) |
294 | { |
295 | GdkWaylandPrimary *cb = GDK_WAYLAND_PRIMARY (clipboard); |
296 | GInputStream *stream; |
297 | const char *mime_type; |
298 | int pipe_fd[2]; |
299 | GError *error = NULL; |
300 | GTask *task; |
301 | |
302 | task = g_task_new (source_object: clipboard, cancellable, callback, callback_data: user_data); |
303 | g_task_set_priority (task, priority: io_priority); |
304 | g_task_set_source_tag (task, gdk_wayland_primary_read_async); |
305 | |
306 | GDK_DISPLAY_NOTE (gdk_clipboard_get_display (clipboard), CLIPBOARD, char *s = gdk_content_formats_to_string (formats); |
307 | g_message ("%p: read for %s" , cb, s); |
308 | g_free (s); ); |
309 | mime_type = gdk_content_formats_match_mime_type (first: formats, second: cb->offer_formats); |
310 | if (mime_type == NULL) |
311 | { |
312 | g_task_return_new_error (task, G_IO_ERROR, code: G_IO_ERROR_NOT_SUPPORTED, |
313 | _("No compatible transfer format found" )); |
314 | return; |
315 | } |
316 | /* offer formats should be empty if we have no offer */ |
317 | g_assert (cb->offer); |
318 | |
319 | g_task_set_task_data (task, task_data: (gpointer) mime_type, NULL); |
320 | |
321 | if (!g_unix_open_pipe (fds: pipe_fd, FD_CLOEXEC, error: &error)) |
322 | { |
323 | g_task_return_error (task, error); |
324 | return; |
325 | } |
326 | |
327 | zwp_primary_selection_offer_v1_receive (cb->offer, mime_type, pipe_fd[1]); |
328 | stream = g_unix_input_stream_new (fd: pipe_fd[0], TRUE); |
329 | close (fd: pipe_fd[1]); |
330 | g_task_return_pointer (task, result: stream, result_destroy: g_object_unref); |
331 | } |
332 | |
333 | static GInputStream * |
334 | gdk_wayland_primary_read_finish (GdkClipboard *clipboard, |
335 | GAsyncResult *result, |
336 | const char **out_mime_type, |
337 | GError **error) |
338 | { |
339 | GInputStream *stream; |
340 | GTask *task; |
341 | |
342 | g_return_val_if_fail (g_task_is_valid (result, G_OBJECT (clipboard)), NULL); |
343 | task = G_TASK (result); |
344 | g_return_val_if_fail (g_task_get_source_tag (task) == gdk_wayland_primary_read_async, NULL); |
345 | |
346 | stream = g_task_propagate_pointer (task, error); |
347 | |
348 | if (stream) |
349 | { |
350 | if (out_mime_type) |
351 | *out_mime_type = g_task_get_task_data (task); |
352 | g_object_ref (stream); |
353 | } |
354 | else |
355 | { |
356 | if (out_mime_type) |
357 | *out_mime_type = NULL; |
358 | } |
359 | |
360 | return stream; |
361 | } |
362 | |
363 | static void |
364 | gdk_wayland_primary_class_init (GdkWaylandPrimaryClass *class) |
365 | { |
366 | GObjectClass *object_class = G_OBJECT_CLASS (class); |
367 | GdkClipboardClass *clipboard_class = GDK_CLIPBOARD_CLASS (class); |
368 | |
369 | object_class->finalize = gdk_wayland_primary_finalize; |
370 | |
371 | clipboard_class->claim = gdk_wayland_primary_claim; |
372 | clipboard_class->read_async = gdk_wayland_primary_read_async; |
373 | clipboard_class->read_finish = gdk_wayland_primary_read_finish; |
374 | } |
375 | |
376 | static void |
377 | gdk_wayland_primary_init (GdkWaylandPrimary *cb) |
378 | { |
379 | } |
380 | |
381 | GdkClipboard * |
382 | gdk_wayland_primary_new (GdkWaylandSeat *seat) |
383 | { |
384 | GdkWaylandDisplay *wdisplay; |
385 | GdkWaylandPrimary *cb; |
386 | |
387 | wdisplay = GDK_WAYLAND_DISPLAY (gdk_seat_get_display (GDK_SEAT (seat))); |
388 | |
389 | cb = g_object_new (GDK_TYPE_WAYLAND_PRIMARY, |
390 | first_property_name: "display" , wdisplay, |
391 | NULL); |
392 | |
393 | cb->primary_data_device = |
394 | zwp_primary_selection_device_manager_v1_get_device (wdisplay->primary_selection_manager, |
395 | gdk_wayland_seat_get_wl_seat (GDK_SEAT (seat))); |
396 | zwp_primary_selection_device_v1_add_listener (cb->primary_data_device, |
397 | &primary_selection_device_listener, cb); |
398 | |
399 | return GDK_CLIPBOARD (cb); |
400 | } |
401 | |