]> Dogcows Code - chaz/tint2/blob - src/systray/systraybar.c
*fix* maybe issue 212
[chaz/tint2] / src / systray / systraybar.c
1 /**************************************************************************
2 * Tint2 : systraybar
3 *
4 * Copyright (C) 2009 thierry lorthiois (lorthiois@bbsoft.fr)
5 * based on 'docker-1.5' from Ben Jansens.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 **************************************************************************/
19
20 #include <X11/Xlib.h>
21 #include <X11/Xutil.h>
22 #include <X11/Xatom.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <glib.h>
27 #include <Imlib2.h>
28 #include <X11/extensions/Xdamage.h>
29 #include <X11/extensions/Xcomposite.h>
30
31 #include "systraybar.h"
32 #include "server.h"
33 #include "panel.h"
34
35 GSList *icons;
36
37 /* defined in the systray spec */
38 #define SYSTEM_TRAY_REQUEST_DOCK 0
39 #define SYSTEM_TRAY_BEGIN_MESSAGE 1
40 #define SYSTEM_TRAY_CANCEL_MESSAGE 2
41
42 // selection window
43 Window net_sel_win = None;
44
45 // freedesktop specification doesn't allow multi systray
46 Systraybar systray;
47 int refresh_systray;
48 int systray_enabled;
49 int systray_max_icon_size = 0;
50
51 // background pixmap if we render ourselves the icons
52 static Pixmap render_background = 0;
53
54
55 void init_systray()
56 {
57 start_net();
58
59 if (!systray_enabled)
60 return;
61
62 systray.area._draw_foreground = draw_systray;
63 systray.area._resize = resize_systray;
64 systray.area.resize = 1;
65 systray.area.redraw = 1;
66 systray.area.on_screen = 1;
67 refresh_systray = 0;
68 }
69
70
71 void init_systray_panel(void *p)
72 {
73 Panel *panel =(Panel*)p;
74
75 if (panel_horizontal) {
76 systray.area.posy = panel->area.bg->border.width + panel->area.paddingy;
77 systray.area.height = panel->area.height - (2 * systray.area.posy);
78 }
79 else {
80 systray.area.posx = panel->area.bg->border.width + panel->area.paddingy;
81 systray.area.width = panel->area.width - (2 * panel->area.bg->border.width) - (2 * panel->area.paddingy);
82 }
83 systray.area.parent = p;
84 systray.area.panel = p;
85 }
86
87
88 void cleanup_systray()
89 {
90 systray_enabled = 0;
91 systray.area.on_screen = 0;
92 free_area(&systray.area);
93 if (render_background) XFreePixmap(server.dsp, render_background);
94 }
95
96
97 void draw_systray(void *obj, cairo_t *c)
98 {
99 if (real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
100 if (render_background) XFreePixmap(server.dsp, render_background);
101 render_background = XCreatePixmap(server.dsp, server.root_win, systray.area.width, systray.area.height, server.depth);
102 XCopyArea(server.dsp, systray.area.pix, render_background, server.gc, 0, 0, systray.area.width, systray.area.height, 0, 0);
103 }
104
105 refresh_systray = 1;
106 }
107
108
109 void resize_systray(void *obj)
110 {
111 Systraybar *sysbar = obj;
112 Panel *panel = sysbar->area.panel;
113 TrayWindow *traywin;
114 GSList *l;
115 int count, icon_size;
116 int icons_per_column=1, icons_per_row=1, marging=0;
117
118 if (panel_horizontal)
119 icon_size = sysbar->area.height;
120 else
121 icon_size = sysbar->area.width;
122 icon_size = icon_size - (2 * sysbar->area.bg->border.width) - (2 * sysbar->area.paddingy);
123 if (systray_max_icon_size > 0 && icon_size > systray_max_icon_size)
124 icon_size = systray_max_icon_size;
125 count = 0;
126 for (l = systray.list_icons; l ; l = l->next) {
127 if (!((TrayWindow*)l->data)->hide)
128 count++;
129 }
130 //printf("count %d\n", count);
131
132 if (panel_horizontal) {
133 if (!count) systray.area.width = 0;
134 else {
135 int height = sysbar->area.height - 2*sysbar->area.bg->border.width - 2*sysbar->area.paddingy;
136 // here icons_per_column always higher than 0
137 icons_per_column = (height+sysbar->area.paddingx) / (icon_size+sysbar->area.paddingx);
138 marging = height - (icons_per_column-1)*(icon_size+sysbar->area.paddingx) - icon_size;
139 icons_per_row = count / icons_per_column + (count%icons_per_column != 0);
140 systray.area.width = (2 * systray.area.bg->border.width) + (2 * systray.area.paddingxlr) + (icon_size * icons_per_row) + ((icons_per_row-1) * systray.area.paddingx);
141 }
142
143 systray.area.posx = panel->area.width - panel->area.bg->border.width - panel->area.paddingxlr - systray.area.width;
144 if (panel->clock.area.on_screen)
145 systray.area.posx -= (panel->clock.area.width + panel->area.paddingx);
146 #ifdef ENABLE_BATTERY
147 if (panel->battery.area.on_screen)
148 systray.area.posx -= (panel->battery.area.width + panel->area.paddingx);
149 #endif
150 }
151 else {
152 if (!count) systray.area.height = 0;
153 else {
154 int width = sysbar->area.width - 2*sysbar->area.bg->border.width - 2*sysbar->area.paddingy;
155 // here icons_per_row always higher than 0
156 icons_per_row = (width+sysbar->area.paddingx) / (icon_size+sysbar->area.paddingx);
157 marging = width - (icons_per_row-1)*(icon_size+sysbar->area.paddingx) - icon_size;
158 icons_per_column = count / icons_per_row+ (count%icons_per_row != 0);
159 systray.area.height = (2 * systray.area.bg->border.width) + (2 * systray.area.paddingxlr) + (icon_size * icons_per_column) + ((icons_per_column-1) * systray.area.paddingx);
160 }
161
162 systray.area.posy = panel->area.bg->border.width + panel->area.paddingxlr;
163 if (panel->clock.area.on_screen)
164 systray.area.posy += (panel->clock.area.height + panel->area.paddingx);
165 #ifdef ENABLE_BATTERY
166 if (panel->battery.area.on_screen)
167 systray.area.posy += (panel->battery.area.height + panel->area.paddingx);
168 #endif
169 }
170
171 int i, posx, posy;
172 int start = panel->area.bg->border.width + panel->area.paddingy + systray.area.bg->border.width + systray.area.paddingy +marging/2;
173 if (panel_horizontal) {
174 posy = start;
175 posx = systray.area.posx + systray.area.bg->border.width + systray.area.paddingxlr;
176 }
177 else {
178 posx = start;
179 posy = systray.area.posy + systray.area.bg->border.width + systray.area.paddingxlr;
180 }
181
182 for (i=1, l = systray.list_icons; l ; i++, l = l->next) {
183 traywin = (TrayWindow*)l->data;
184 if (traywin->hide) continue;
185
186 traywin->y = posy;
187 traywin->x = posx;
188 traywin->width = icon_size;
189 traywin->height = icon_size;
190 if (panel_horizontal) {
191 if (i % icons_per_column)
192 posy += icon_size + sysbar->area.paddingx;
193 else {
194 posy = start;
195 posx += (icon_size + systray.area.paddingx);
196 }
197 }
198 else {
199 if (i % icons_per_row)
200 posx += icon_size + systray.area.paddingx;
201 else {
202 posx = start;
203 posy += (icon_size + systray.area.paddingx);
204 }
205 }
206
207 // position and size the icon window
208 XMoveResizeWindow(server.dsp, traywin->id, traywin->x, traywin->y, icon_size, icon_size);
209 XResizeWindow(server.dsp, traywin->tray_id, icon_size, icon_size);
210 }
211 // resize force the redraw
212 systray.area.redraw = 1;
213 }
214
215
216 // ***********************************************
217 // systray protocol
218
219 void start_net()
220 {
221 if (net_sel_win) {
222 // protocol already started
223 if (!systray_enabled)
224 stop_net();
225 return;
226 }
227 else
228 if (!systray_enabled)
229 return;
230
231 Window win = XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN);
232
233 // freedesktop systray specification
234 if (win != None) {
235 // search pid
236 Atom _NET_WM_PID, actual_type;
237 int actual_format;
238 unsigned long nitems;
239 unsigned long bytes_after;
240 unsigned char *prop = 0;
241 int pid;
242
243 _NET_WM_PID = XInternAtom(server.dsp, "_NET_WM_PID", True);
244 int ret = XGetWindowProperty(server.dsp, win, _NET_WM_PID, 0, 1024, False, AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop);
245
246 fprintf(stderr, "tint2 : another systray is running");
247 if (ret == Success && prop) {
248 pid = prop[1] * 256;
249 pid += prop[0];
250 fprintf(stderr, " pid=%d", pid);
251 }
252 fprintf(stderr, "\n");
253 return;
254 }
255
256 // init systray protocol
257 net_sel_win = XCreateSimpleWindow(server.dsp, server.root_win, -1, -1, 1, 1, 0, 0, 0);
258
259 // v0.3 trayer specification. tint2 always horizontal.
260 // Vertical panel will draw the systray horizontal.
261 int orient = 0;
262 XChangeProperty(server.dsp, net_sel_win, server.atom._NET_SYSTEM_TRAY_ORIENTATION, XA_CARDINAL, 32, PropModeReplace, (unsigned char *) &orient, 1);
263 VisualID vid = XVisualIDFromVisual(server.visual);
264 XChangeProperty(server.dsp, net_sel_win, XInternAtom(server.dsp, "_NET_SYSTEM_TRAY_VISUAL", False), XA_VISUALID, 32, PropModeReplace, (unsigned char*)&vid, 1);
265
266 XSetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN, net_sel_win, CurrentTime);
267 if (XGetSelectionOwner(server.dsp, server.atom._NET_SYSTEM_TRAY_SCREEN) != net_sel_win) {
268 stop_net();
269 fprintf(stderr, "tint2 : can't get systray manager\n");
270 return;
271 }
272
273 //fprintf(stderr, "tint2 : systray started\n");
274 XClientMessageEvent ev;
275 ev.type = ClientMessage;
276 ev.window = server.root_win;
277 ev.message_type = server.atom.MANAGER;
278 ev.format = 32;
279 ev.data.l[0] = CurrentTime;
280 ev.data.l[1] = server.atom._NET_SYSTEM_TRAY_SCREEN;
281 ev.data.l[2] = net_sel_win;
282 ev.data.l[3] = 0;
283 ev.data.l[4] = 0;
284 XSendEvent(server.dsp, server.root_win, False, StructureNotifyMask, (XEvent*)&ev);
285 }
286
287
288 void stop_net()
289 {
290 //fprintf(stderr, "tint2 : systray stopped\n");
291 if (systray.list_icons) {
292 // remove_icon change systray.list_icons
293 while(systray.list_icons)
294 remove_icon((TrayWindow*)systray.list_icons->data);
295
296 g_slist_free(systray.list_icons);
297 systray.list_icons = 0;
298 }
299
300 if (net_sel_win != None) {
301 XDestroyWindow(server.dsp, net_sel_win);
302 net_sel_win = None;
303 }
304 }
305
306
307 gboolean error;
308 int window_error_handler(Display *d, XErrorEvent *e)
309 {
310 d=d;e=e;
311 error = TRUE;
312 if (e->error_code != BadWindow) {
313 printf("error_handler %d\n", e->error_code);
314 }
315 return 0;
316 }
317
318
319 static gint compare_traywindows(gconstpointer a, gconstpointer b)
320 {
321 const TrayWindow * traywin_a = (TrayWindow*)a;
322 const TrayWindow * traywin_b = (TrayWindow*)b;
323 XTextProperty name_a, name_b;
324
325 if(XGetWMName(server.dsp, traywin_a->tray_id, &name_a) == 0) {
326 return -1;
327 }
328 else if(XGetWMName(server.dsp, traywin_b->tray_id, &name_b) == 0) {
329 XFree(name_a.value);
330 return 1;
331 }
332 else {
333 gint retval = g_ascii_strncasecmp((char*)name_a.value, (char*)name_b.value, -1) * systray.sort;
334 XFree(name_a.value);
335 XFree(name_b.value);
336 return retval;
337 }
338 }
339
340
341 gboolean add_icon(Window id)
342 {
343 TrayWindow *traywin;
344 XErrorHandler old;
345 Panel *panel = systray.area.panel;
346 int hide = 0;
347
348 error = FALSE;
349 XWindowAttributes attr;
350 XGetWindowAttributes(server.dsp, id, &attr);
351 unsigned long mask = 0;
352 XSetWindowAttributes set_attr;
353 if (attr.depth != server.depth || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0 ) {
354 set_attr.colormap = attr.colormap;
355 set_attr.background_pixel = 0;
356 set_attr.border_pixel = 0;
357 mask = CWColormap|CWBackPixel|CWBorderPixel;
358 }
359 else {
360 set_attr.background_pixmap = ParentRelative;
361 mask = CWBackPixmap;
362 }
363 Window parent_window;
364 parent_window = XCreateWindow(server.dsp, panel->main_win, 0, 0, 30, 30, 0, attr.depth, InputOutput, attr.visual, mask, &set_attr);
365 old = XSetErrorHandler(window_error_handler);
366 XReparentWindow(server.dsp, id, parent_window, 0, 0);
367 XSync(server.dsp, False);
368 XSetErrorHandler(old);
369 if (error != FALSE) {
370 fprintf(stderr, "tint2 : not icon_swallow\n");
371 XDestroyWindow(server.dsp, parent_window);
372 return FALSE;
373 }
374
375 {
376 Atom acttype;
377 int actfmt;
378 unsigned long nbitem, bytes;
379 unsigned char *data = 0;
380 int ret;
381
382 ret = XGetWindowProperty(server.dsp, id, server.atom._XEMBED_INFO, 0, 2, False, server.atom._XEMBED_INFO, &acttype, &actfmt, &nbitem, &bytes, &data);
383 if (ret == Success) {
384 if (data) {
385 if (nbitem == 2) {
386 //hide = ((data[1] & XEMBED_MAPPED) == 0);
387 //printf("hide %d\n", hide);
388 }
389 XFree(data);
390 }
391 }
392 else {
393 fprintf(stderr, "tint2 : xembed error\n");
394 XDestroyWindow(server.dsp, parent_window);
395 return FALSE;
396 }
397 }
398 {
399 XEvent e;
400 e.xclient.type = ClientMessage;
401 e.xclient.serial = 0;
402 e.xclient.send_event = True;
403 e.xclient.message_type = server.atom._XEMBED;
404 e.xclient.window = id;
405 e.xclient.format = 32;
406 e.xclient.data.l[0] = CurrentTime;
407 e.xclient.data.l[1] = XEMBED_EMBEDDED_NOTIFY;
408 e.xclient.data.l[2] = 0;
409 e.xclient.data.l[3] = parent_window;
410 e.xclient.data.l[4] = 0;
411 XSendEvent(server.dsp, id, False, 0xFFFFFF, &e);
412 }
413
414 traywin = g_new0(TrayWindow, 1);
415 traywin->id = parent_window;
416 traywin->tray_id = id;
417 traywin->hide = hide;
418 traywin->depth = attr.depth;
419 traywin->damage = 0;
420
421 if (systray.sort == 3)
422 systray.list_icons = g_slist_prepend(systray.list_icons, traywin);
423 else if (systray.sort == 2)
424 systray.list_icons = g_slist_append(systray.list_icons, traywin);
425 else
426 systray.list_icons = g_slist_insert_sorted(systray.list_icons, traywin, compare_traywindows);
427 systray.area.resize = 1;
428 //printf("add_icon id %lx, %d\n", id, g_slist_length(systray.list_icons));
429
430 // watch for the icon trying to resize itself!
431 XSelectInput(server.dsp, traywin->tray_id, StructureNotifyMask);
432 if (real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
433 traywin->damage = XDamageCreate(server.dsp, traywin->id, XDamageReportNonEmpty);
434 XCompositeRedirectWindow(server.dsp, traywin->id, CompositeRedirectManual);
435 }
436
437 // show the window
438 if (!traywin->hide)
439 XMapWindow(server.dsp, traywin->tray_id);
440 if (!traywin->hide && !panel->is_hidden)
441 XMapRaised(server.dsp, traywin->id);
442
443 // changed in systray force resize on panel
444 panel->area.resize = 1;
445 panel_refresh = 1;
446 return TRUE;
447 }
448
449
450 void remove_icon(TrayWindow *traywin)
451 {
452 XErrorHandler old;
453
454 // remove from our list
455 systray.list_icons = g_slist_remove(systray.list_icons, traywin);
456 systray.area.resize = 1;
457 //printf("remove_icon id %lx, %d\n", traywin->id);
458
459 XSelectInput(server.dsp, traywin->tray_id, NoEventMask);
460 if (traywin->damage)
461 XDamageDestroy(server.dsp, traywin->damage);
462
463 // reparent to root
464 error = FALSE;
465 old = XSetErrorHandler(window_error_handler);
466 if (!traywin->hide)
467 XUnmapWindow(server.dsp, traywin->tray_id);
468 XReparentWindow(server.dsp, traywin->tray_id, server.root_win, 0, 0);
469 XDestroyWindow(server.dsp, traywin->id);
470 XSync(server.dsp, False);
471 XSetErrorHandler(old);
472 g_free(traywin);
473
474 // changed in systray force resize on panel
475 Panel *panel = systray.area.panel;
476 panel->area.resize = 1;
477 panel_refresh = 1;
478 }
479
480
481 void net_message(XClientMessageEvent *e)
482 {
483 unsigned long opcode;
484 Window id;
485
486 opcode = e->data.l[1];
487 switch (opcode) {
488 case SYSTEM_TRAY_REQUEST_DOCK:
489 id = e->data.l[2];
490 if (id) add_icon(id);
491 break;
492
493 case SYSTEM_TRAY_BEGIN_MESSAGE:
494 case SYSTEM_TRAY_CANCEL_MESSAGE:
495 // we don't show baloons messages.
496 break;
497
498 default:
499 if (opcode == server.atom._NET_SYSTEM_TRAY_MESSAGE_DATA)
500 printf("message from dockapp: %s\n", e->data.b);
501 else
502 fprintf(stderr, "SYSTEM_TRAY : unknown message type\n");
503 break;
504 }
505 }
506
507 void systray_render_icon_now(void* t)
508 {
509 TrayWindow* traywin = t;
510 traywin->render_timeout = 0;
511
512 // good systray icons support 32 bit depth, but some icons are still 24 bit.
513 // We create a heuristic mask for these icons, i.e. we get the rgb value in the top left corner, and
514 // mask out all pixel with the same rgb value
515 Panel* panel = systray.area.panel;
516 imlib_context_set_drawable(traywin->id);
517 Imlib_Image image = imlib_create_image_from_drawable(0, 0, 0, traywin->width, traywin->height, 0);
518 if (image == 0)
519 return;
520
521 imlib_context_set_image(image);
522 imlib_image_set_has_alpha(1);
523 DATA32* data = imlib_image_get_data();
524 if (traywin->depth == 24) {
525 createHeuristicMask(data, traywin->width, traywin->height);
526 }
527 if (systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0)
528 adjust_asb(data, traywin->width, traywin->height, systray.alpha, (float)systray.saturation/100, (float)systray.brightness/100);
529 imlib_image_put_back_data(data);
530 XCopyArea(server.dsp, render_background, systray.area.pix, server.gc, traywin->x-systray.area.posx, traywin->y-systray.area.posy, traywin->width, traywin->height, traywin->x-systray.area.posx, traywin->y-systray.area.posy);
531 if ( !real_transparency ) {
532 imlib_context_set_drawable(systray.area.pix);
533 imlib_render_image_on_drawable(traywin->x-systray.area.posx, traywin->y-systray.area.posy);
534 }
535 else {
536 render_image(systray.area.pix, traywin->x-systray.area.posx, traywin->y-systray.area.posy, traywin->width, traywin->height);
537 }
538 XCopyArea(server.dsp, systray.area.pix, panel->main_win, server.gc, traywin->x-systray.area.posx, traywin->y-systray.area.posy, traywin->width, traywin->height, traywin->x, traywin->y);
539 imlib_free_image_and_decache();
540
541 if (traywin->damage)
542 XDamageSubtract(server.dsp, traywin->damage, None, None);
543 XFlush(server.dsp);
544 }
545
546
547 void systray_render_icon(TrayWindow* traywin)
548 {
549 if (real_transparency || systray.alpha != 100 || systray.brightness != 0 || systray.saturation != 0) {
550 // wine tray icons update whenever mouse is over them, so we limit the updates to 50 ms
551 if (traywin->render_timeout == 0)
552 traywin->render_timeout = add_timeout(50, 0, systray_render_icon_now, traywin);
553 }
554 else {
555 // comment by andreas: I'm still not sure, what exactly we need to do here... Somehow trayicons which do not
556 // offer the same depth as tint2 does, need to draw a background pixmap, but this cannot be done with
557 // XCopyArea... So we actually need XRenderComposite???
558 // Pixmap pix = XCreatePixmap(server.dsp, server.root_win, traywin->width, traywin->height, server.depth);
559 // XCopyArea(server.dsp, panel->temp_pmap, pix, server.gc, traywin->x, traywin->y, traywin->width, traywin->height, 0, 0);
560 // XSetWindowBackgroundPixmap(server.dsp, traywin->id, pix);
561 XClearArea(server.dsp, traywin->tray_id, 0, 0, traywin->width, traywin->height, True);
562 }
563 }
564
565
566 void refresh_systray_icon()
567 {
568 TrayWindow *traywin;
569 GSList *l;
570 for (l = systray.list_icons; l ; l = l->next) {
571 traywin = (TrayWindow*)l->data;
572 if (traywin->hide) continue;
573 systray_render_icon(traywin);
574 }
575 }
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