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author | 2017-06-14 18:53:32 -0400 | |
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committer | 2017-06-14 18:53:32 -0400 | |
commit | eb6e38c86d2deb37cc6f378f8644c4a530fd7448 (patch) | |
tree | e3c567c4684faf0f9a7f77494f1bf638171d5349 /swaybar/tray/sni.c | |
parent | Merge pull request #1236 from ykrivopalov/fix_complex_status_command (diff) | |
parent | Merge branch 'master' into tray (diff) | |
download | sway-eb6e38c86d2deb37cc6f378f8644c4a530fd7448.tar.gz sway-eb6e38c86d2deb37cc6f378f8644c4a530fd7448.tar.zst sway-eb6e38c86d2deb37cc6f378f8644c4a530fd7448.zip |
Implement Tray Icons
Diffstat (limited to 'swaybar/tray/sni.c')
-rw-r--r-- | swaybar/tray/sni.c | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/swaybar/tray/sni.c b/swaybar/tray/sni.c new file mode 100644 index 00000000..0c46d5c0 --- /dev/null +++ b/swaybar/tray/sni.c | |||
@@ -0,0 +1,471 @@ | |||
1 | #define _XOPEN_SOURCE 500 | ||
2 | #include <stdlib.h> | ||
3 | #include <stdio.h> | ||
4 | #include <string.h> | ||
5 | #include <stdint.h> | ||
6 | #include <stdbool.h> | ||
7 | #include <dbus/dbus.h> | ||
8 | #include <arpa/inet.h> | ||
9 | #include <netinet/in.h> | ||
10 | #include "swaybar/tray/dbus.h" | ||
11 | #include "swaybar/tray/sni.h" | ||
12 | #include "swaybar/tray/icon.h" | ||
13 | #include "swaybar/bar.h" | ||
14 | #include "client/cairo.h" | ||
15 | #include "log.h" | ||
16 | |||
17 | // Not sure what this is but cairo needs it. | ||
18 | static const cairo_user_data_key_t cairo_user_data_key; | ||
19 | |||
20 | struct sni_icon_ref *sni_icon_ref_create(struct StatusNotifierItem *item, | ||
21 | int height) { | ||
22 | struct sni_icon_ref *sni_ref = malloc(sizeof(struct sni_icon_ref)); | ||
23 | if (!sni_ref) { | ||
24 | return NULL; | ||
25 | } | ||
26 | sni_ref->icon = cairo_image_surface_scale(item->image, height, height); | ||
27 | sni_ref->ref = item; | ||
28 | |||
29 | return sni_ref; | ||
30 | } | ||
31 | |||
32 | void sni_icon_ref_free(struct sni_icon_ref *sni_ref) { | ||
33 | if (!sni_ref) { | ||
34 | return; | ||
35 | } | ||
36 | cairo_surface_destroy(sni_ref->icon); | ||
37 | free(sni_ref); | ||
38 | } | ||
39 | |||
40 | /* Gets the pixmap of an icon */ | ||
41 | static void reply_icon(DBusPendingCall *pending, void *_data) { | ||
42 | struct StatusNotifierItem *item = _data; | ||
43 | |||
44 | DBusMessage *reply = dbus_pending_call_steal_reply(pending); | ||
45 | |||
46 | if (!reply) { | ||
47 | sway_log(L_ERROR, "Did not get reply"); | ||
48 | goto bail; | ||
49 | } | ||
50 | |||
51 | int message_type = dbus_message_get_type(reply); | ||
52 | |||
53 | if (message_type == DBUS_MESSAGE_TYPE_ERROR) { | ||
54 | char *msg; | ||
55 | |||
56 | dbus_message_get_args(reply, NULL, | ||
57 | DBUS_TYPE_STRING, &msg, | ||
58 | DBUS_TYPE_INVALID); | ||
59 | |||
60 | sway_log(L_ERROR, "Message is error: %s", msg); | ||
61 | goto bail; | ||
62 | } | ||
63 | |||
64 | DBusMessageIter iter; | ||
65 | DBusMessageIter variant; /* v[a(iiay)] */ | ||
66 | DBusMessageIter array; /* a(iiay) */ | ||
67 | DBusMessageIter d_struct; /* (iiay) */ | ||
68 | DBusMessageIter icon; /* ay */ | ||
69 | |||
70 | dbus_message_iter_init(reply, &iter); | ||
71 | |||
72 | // Each if here checks the types above before recursing | ||
73 | if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | ||
74 | sway_log(L_ERROR, "Relpy type incorrect"); | ||
75 | sway_log(L_ERROR, "Should be \"v\", is \"%s\"", | ||
76 | dbus_message_iter_get_signature(&iter)); | ||
77 | goto bail; | ||
78 | } | ||
79 | dbus_message_iter_recurse(&iter, &variant); | ||
80 | |||
81 | if (strcmp("a(iiay)", dbus_message_iter_get_signature(&variant)) != 0) { | ||
82 | sway_log(L_ERROR, "Relpy type incorrect"); | ||
83 | sway_log(L_ERROR, "Should be \"a(iiay)\", is \"%s\"", | ||
84 | dbus_message_iter_get_signature(&variant)); | ||
85 | goto bail; | ||
86 | } | ||
87 | |||
88 | if (dbus_message_iter_get_element_count(&variant) == 0) { | ||
89 | // Can't recurse if there are no items | ||
90 | sway_log(L_INFO, "Item has no icon"); | ||
91 | goto bail; | ||
92 | } | ||
93 | dbus_message_iter_recurse(&variant, &array); | ||
94 | |||
95 | dbus_message_iter_recurse(&array, &d_struct); | ||
96 | |||
97 | int width; | ||
98 | dbus_message_iter_get_basic(&d_struct, &width); | ||
99 | dbus_message_iter_next(&d_struct); | ||
100 | |||
101 | int height; | ||
102 | dbus_message_iter_get_basic(&d_struct, &height); | ||
103 | dbus_message_iter_next(&d_struct); | ||
104 | |||
105 | int len = dbus_message_iter_get_element_count(&d_struct); | ||
106 | |||
107 | if (!len) { | ||
108 | sway_log(L_ERROR, "No icon data"); | ||
109 | goto bail; | ||
110 | } | ||
111 | |||
112 | // Also implies len % 4 == 0, useful below | ||
113 | if (len != width * height * 4) { | ||
114 | sway_log(L_ERROR, "Incorrect array size passed"); | ||
115 | goto bail; | ||
116 | } | ||
117 | |||
118 | dbus_message_iter_recurse(&d_struct, &icon); | ||
119 | |||
120 | int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, width); | ||
121 | // FIXME support a variable stride | ||
122 | // (works on my machine though for all tested widths) | ||
123 | if (!sway_assert(stride == width * 4, "Stride must be equal to byte length")) { | ||
124 | goto bail; | ||
125 | } | ||
126 | |||
127 | // Data is by reference, no need to free | ||
128 | uint8_t *message_data; | ||
129 | dbus_message_iter_get_fixed_array(&icon, &message_data, &len); | ||
130 | |||
131 | uint8_t *image_data = malloc(stride * height); | ||
132 | if (!image_data) { | ||
133 | sway_log(L_ERROR, "Could not allocate memory for icon"); | ||
134 | goto bail; | ||
135 | } | ||
136 | |||
137 | // Transform from network byte order to host byte order | ||
138 | // Assumptions are safe because the equality above | ||
139 | uint32_t *network = (uint32_t *) message_data; | ||
140 | uint32_t *host = (uint32_t *)image_data; | ||
141 | for (int i = 0; i < width * height; ++i) { | ||
142 | host[i] = ntohl(network[i]); | ||
143 | } | ||
144 | |||
145 | cairo_surface_t *image = cairo_image_surface_create_for_data( | ||
146 | image_data, CAIRO_FORMAT_ARGB32, | ||
147 | width, height, stride); | ||
148 | |||
149 | if (image) { | ||
150 | if (item->image) { | ||
151 | cairo_surface_destroy(item->image); | ||
152 | } | ||
153 | item->image = image; | ||
154 | // Free the image data on surface destruction | ||
155 | cairo_surface_set_user_data(image, | ||
156 | &cairo_user_data_key, | ||
157 | image_data, | ||
158 | free); | ||
159 | item->dirty = true; | ||
160 | dirty = true; | ||
161 | |||
162 | dbus_message_unref(reply); | ||
163 | return; | ||
164 | } else { | ||
165 | sway_log(L_ERROR, "Could not create image surface"); | ||
166 | free(image_data); | ||
167 | } | ||
168 | |||
169 | bail: | ||
170 | if (reply) { | ||
171 | dbus_message_unref(reply); | ||
172 | } | ||
173 | sway_log(L_ERROR, "Could not get icon from item"); | ||
174 | return; | ||
175 | } | ||
176 | static void send_icon_msg(struct StatusNotifierItem *item) { | ||
177 | DBusPendingCall *pending; | ||
178 | DBusMessage *message = dbus_message_new_method_call( | ||
179 | item->name, | ||
180 | "/StatusNotifierItem", | ||
181 | "org.freedesktop.DBus.Properties", | ||
182 | "Get"); | ||
183 | const char *iface; | ||
184 | if (item->kde_special_snowflake) { | ||
185 | iface = "org.kde.StatusNotifierItem"; | ||
186 | } else { | ||
187 | iface = "org.freedesktop.StatusNotifierItem"; | ||
188 | } | ||
189 | const char *prop = "IconPixmap"; | ||
190 | |||
191 | dbus_message_append_args(message, | ||
192 | DBUS_TYPE_STRING, &iface, | ||
193 | DBUS_TYPE_STRING, &prop, | ||
194 | DBUS_TYPE_INVALID); | ||
195 | |||
196 | bool status = | ||
197 | dbus_connection_send_with_reply(conn, message, &pending, -1); | ||
198 | |||
199 | dbus_message_unref(message); | ||
200 | |||
201 | if (!(pending || status)) { | ||
202 | sway_log(L_ERROR, "Could not get item icon"); | ||
203 | return; | ||
204 | } | ||
205 | |||
206 | dbus_pending_call_set_notify(pending, reply_icon, item, NULL); | ||
207 | } | ||
208 | |||
209 | /* Get an icon by its name */ | ||
210 | static void reply_icon_name(DBusPendingCall *pending, void *_data) { | ||
211 | struct StatusNotifierItem *item = _data; | ||
212 | |||
213 | DBusMessage *reply = dbus_pending_call_steal_reply(pending); | ||
214 | |||
215 | if (!reply) { | ||
216 | sway_log(L_INFO, "Got no icon name reply from item"); | ||
217 | goto bail; | ||
218 | } | ||
219 | |||
220 | int message_type = dbus_message_get_type(reply); | ||
221 | |||
222 | if (message_type == DBUS_MESSAGE_TYPE_ERROR) { | ||
223 | char *msg; | ||
224 | |||
225 | dbus_message_get_args(reply, NULL, | ||
226 | DBUS_TYPE_STRING, &msg, | ||
227 | DBUS_TYPE_INVALID); | ||
228 | |||
229 | sway_log(L_INFO, "Could not get icon name: %s", msg); | ||
230 | goto bail; | ||
231 | } | ||
232 | |||
233 | DBusMessageIter iter; /* v[s] */ | ||
234 | DBusMessageIter variant; /* s */ | ||
235 | |||
236 | dbus_message_iter_init(reply, &iter); | ||
237 | if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | ||
238 | sway_log(L_ERROR, "Relpy type incorrect"); | ||
239 | sway_log(L_ERROR, "Should be \"v\", is \"%s\"", | ||
240 | dbus_message_iter_get_signature(&iter)); | ||
241 | goto bail; | ||
242 | } | ||
243 | dbus_message_iter_recurse(&iter, &variant); | ||
244 | |||
245 | |||
246 | if (dbus_message_iter_get_arg_type(&variant) != DBUS_TYPE_STRING) { | ||
247 | sway_log(L_ERROR, "Relpy type incorrect"); | ||
248 | sway_log(L_ERROR, "Should be \"s\", is \"%s\"", | ||
249 | dbus_message_iter_get_signature(&iter)); | ||
250 | goto bail; | ||
251 | } | ||
252 | |||
253 | char *icon_name; | ||
254 | dbus_message_iter_get_basic(&variant, &icon_name); | ||
255 | |||
256 | cairo_surface_t *image = find_icon(icon_name, 256); | ||
257 | |||
258 | if (image) { | ||
259 | sway_log(L_DEBUG, "Icon for %s found with size %d", icon_name, | ||
260 | cairo_image_surface_get_width(image)); | ||
261 | if (item->image) { | ||
262 | cairo_surface_destroy(item->image); | ||
263 | } | ||
264 | item->image = image; | ||
265 | item->dirty = true; | ||
266 | dirty = true; | ||
267 | |||
268 | dbus_message_unref(reply); | ||
269 | return; | ||
270 | } | ||
271 | |||
272 | bail: | ||
273 | if (reply) { | ||
274 | dbus_message_unref(reply); | ||
275 | } | ||
276 | // Now try the pixmap | ||
277 | send_icon_msg(item); | ||
278 | return; | ||
279 | } | ||
280 | static void send_icon_name_msg(struct StatusNotifierItem *item) { | ||
281 | DBusPendingCall *pending; | ||
282 | DBusMessage *message = dbus_message_new_method_call( | ||
283 | item->name, | ||
284 | "/StatusNotifierItem", | ||
285 | "org.freedesktop.DBus.Properties", | ||
286 | "Get"); | ||
287 | const char *iface; | ||
288 | if (item->kde_special_snowflake) { | ||
289 | iface = "org.kde.StatusNotifierItem"; | ||
290 | } else { | ||
291 | iface = "org.freedesktop.StatusNotifierItem"; | ||
292 | } | ||
293 | const char *prop = "IconName"; | ||
294 | |||
295 | dbus_message_append_args(message, | ||
296 | DBUS_TYPE_STRING, &iface, | ||
297 | DBUS_TYPE_STRING, &prop, | ||
298 | DBUS_TYPE_INVALID); | ||
299 | |||
300 | bool status = | ||
301 | dbus_connection_send_with_reply(conn, message, &pending, -1); | ||
302 | |||
303 | dbus_message_unref(message); | ||
304 | |||
305 | if (!(pending || status)) { | ||
306 | sway_log(L_ERROR, "Could not get item icon name"); | ||
307 | return; | ||
308 | } | ||
309 | |||
310 | dbus_pending_call_set_notify(pending, reply_icon_name, item, NULL); | ||
311 | } | ||
312 | |||
313 | void get_icon(struct StatusNotifierItem *item) { | ||
314 | send_icon_name_msg(item); | ||
315 | } | ||
316 | |||
317 | void sni_activate(struct StatusNotifierItem *item, uint32_t x, uint32_t y) { | ||
318 | const char *iface = | ||
319 | (item->kde_special_snowflake ? "org.kde.StatusNotifierItem" | ||
320 | : "org.freedesktop.StatusNotifierItem"); | ||
321 | DBusMessage *message = dbus_message_new_method_call( | ||
322 | item->name, | ||
323 | "/StatusNotifierItem", | ||
324 | iface, | ||
325 | "Activate"); | ||
326 | |||
327 | dbus_message_append_args(message, | ||
328 | DBUS_TYPE_INT32, &x, | ||
329 | DBUS_TYPE_INT32, &y, | ||
330 | DBUS_TYPE_INVALID); | ||
331 | |||
332 | dbus_connection_send(conn, message, NULL); | ||
333 | |||
334 | dbus_message_unref(message); | ||
335 | } | ||
336 | |||
337 | void sni_context_menu(struct StatusNotifierItem *item, uint32_t x, uint32_t y) { | ||
338 | const char *iface = | ||
339 | (item->kde_special_snowflake ? "org.kde.StatusNotifierItem" | ||
340 | : "org.freedesktop.StatusNotifierItem"); | ||
341 | DBusMessage *message = dbus_message_new_method_call( | ||
342 | item->name, | ||
343 | "/StatusNotifierItem", | ||
344 | iface, | ||
345 | "ContextMenu"); | ||
346 | |||
347 | dbus_message_append_args(message, | ||
348 | DBUS_TYPE_INT32, &x, | ||
349 | DBUS_TYPE_INT32, &y, | ||
350 | DBUS_TYPE_INVALID); | ||
351 | |||
352 | dbus_connection_send(conn, message, NULL); | ||
353 | |||
354 | dbus_message_unref(message); | ||
355 | } | ||
356 | void sni_secondary(struct StatusNotifierItem *item, uint32_t x, uint32_t y) { | ||
357 | const char *iface = | ||
358 | (item->kde_special_snowflake ? "org.kde.StatusNotifierItem" | ||
359 | : "org.freedesktop.StatusNotifierItem"); | ||
360 | DBusMessage *message = dbus_message_new_method_call( | ||
361 | item->name, | ||
362 | "/StatusNotifierItem", | ||
363 | iface, | ||
364 | "SecondaryActivate"); | ||
365 | |||
366 | dbus_message_append_args(message, | ||
367 | DBUS_TYPE_INT32, &x, | ||
368 | DBUS_TYPE_INT32, &y, | ||
369 | DBUS_TYPE_INVALID); | ||
370 | |||
371 | dbus_connection_send(conn, message, NULL); | ||
372 | |||
373 | dbus_message_unref(message); | ||
374 | } | ||
375 | |||
376 | static void get_unique_name(struct StatusNotifierItem *item) { | ||
377 | // I think that we're fine being sync here becaues the message is | ||
378 | // directly to the message bus. Could be async though. | ||
379 | DBusMessage *message = dbus_message_new_method_call( | ||
380 | "org.freedesktop.DBus", | ||
381 | "/org/freedesktop/DBus", | ||
382 | "org.freedesktop.DBus", | ||
383 | "GetNameOwner"); | ||
384 | |||
385 | dbus_message_append_args(message, | ||
386 | DBUS_TYPE_STRING, &item->name, | ||
387 | DBUS_TYPE_INVALID); | ||
388 | |||
389 | DBusMessage *reply = dbus_connection_send_with_reply_and_block( | ||
390 | conn, message, -1, NULL); | ||
391 | |||
392 | dbus_message_unref(message); | ||
393 | |||
394 | if (!reply) { | ||
395 | sway_log(L_ERROR, "Could not get unique name for item: %s", | ||
396 | item->name); | ||
397 | return; | ||
398 | } | ||
399 | |||
400 | char *unique_name; | ||
401 | if (!dbus_message_get_args(reply, NULL, | ||
402 | DBUS_TYPE_STRING, &unique_name, | ||
403 | DBUS_TYPE_INVALID)) { | ||
404 | sway_log(L_ERROR, "Error parsing method args"); | ||
405 | } else { | ||
406 | if (item->unique_name) { | ||
407 | free(item->unique_name); | ||
408 | } | ||
409 | item->unique_name = strdup(unique_name); | ||
410 | } | ||
411 | |||
412 | dbus_message_unref(reply); | ||
413 | } | ||
414 | |||
415 | struct StatusNotifierItem *sni_create(const char *name) { | ||
416 | struct StatusNotifierItem *item = malloc(sizeof(struct StatusNotifierItem)); | ||
417 | item->name = strdup(name); | ||
418 | item->unique_name = NULL; | ||
419 | item->image = NULL; | ||
420 | item->dirty = false; | ||
421 | |||
422 | // If it doesn't use this name then assume that it uses the KDE spec | ||
423 | // This is because xembed-sni-proxy uses neither "org.freedesktop" nor | ||
424 | // "org.kde" and just gives us the items "unique name" | ||
425 | // | ||
426 | // We could use this to our advantage and fill out the "unique name" | ||
427 | // field with the given name if it is neither freedesktop or kde, but | ||
428 | // that's makes us rely on KDE hackyness which is bad practice | ||
429 | const char freedesktop_name[] = "org.freedesktop"; | ||
430 | if (strncmp(name, freedesktop_name, sizeof(freedesktop_name) - 1) != 0) { | ||
431 | item->kde_special_snowflake = true; | ||
432 | } else { | ||
433 | item->kde_special_snowflake = false; | ||
434 | } | ||
435 | |||
436 | get_icon(item); | ||
437 | |||
438 | get_unique_name(item); | ||
439 | |||
440 | return item; | ||
441 | } | ||
442 | /* Return 0 if `item` has a name of `str` */ | ||
443 | int sni_str_cmp(const void *_item, const void *_str) { | ||
444 | const struct StatusNotifierItem *item = _item; | ||
445 | const char *str = _str; | ||
446 | |||
447 | return strcmp(item->name, str); | ||
448 | } | ||
449 | /* Returns 0 if `item` has a unique name of `str` */ | ||
450 | int sni_uniq_cmp(const void *_item, const void *_str) { | ||
451 | const struct StatusNotifierItem *item = _item; | ||
452 | const char *str = _str; | ||
453 | |||
454 | if (!item->unique_name) { | ||
455 | return false; | ||
456 | } | ||
457 | return strcmp(item->unique_name, str); | ||
458 | } | ||
459 | void sni_free(struct StatusNotifierItem *item) { | ||
460 | if (!item) { | ||
461 | return; | ||
462 | } | ||
463 | free(item->name); | ||
464 | if (item->unique_name) { | ||
465 | free(item->unique_name); | ||
466 | } | ||
467 | if (item->image) { | ||
468 | cairo_surface_destroy(item->image); | ||
469 | } | ||
470 | free(item); | ||
471 | } | ||