2 * vim:ts=4:sw=4:expandtab
4 * i3bar - an xcb-based status- and ws-bar for i3
5 * © 2010 Axel Wagner and contributors (see also: LICENSE)
7 * xcb.c: Communicating with X
12 #include <xcb/xproto.h>
13 #include <xcb/xcb_aux.h>
16 #include "xcb_compat.h"
31 #include <X11/XKBlib.h>
32 #include <X11/extensions/XKB.h>
37 /* We save the atoms in an easy to access array, indexed by an enum */
39 #define ATOM_DO(name) name,
40 #include "xcb_atoms.def"
44 xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
45 xcb_atom_t atoms[NUM_ATOMS];
47 /* Variables, that are the same for all functions at all times */
48 xcb_connection_t *xcb_connection;
50 xcb_screen_t *root_screen;
51 xcb_window_t xcb_root;
53 /* selection window for tray support */
54 static xcb_window_t selwin = XCB_NONE;
55 static xcb_intern_atom_reply_t *tray_reply = NULL;
57 /* This is needed for integration with libi3 */
58 xcb_connection_t *conn;
60 /* The font we'll use */
63 /* Overall height of the bar (based on font size) */
66 /* These are only relevant for XKB, which we only need for grabbing modifiers */
70 /* Because the statusline is the same on all outputs, we have
71 * global buffer to render it on */
72 xcb_gcontext_t statusline_ctx;
73 xcb_gcontext_t statusline_clear;
74 xcb_pixmap_t statusline_pm;
75 uint32_t statusline_width;
77 /* Event watchers, to interact with the user */
83 /* The name of current binding mode */
86 /* Indicates whether a new binding mode was recently activated */
87 bool activated_mode = false;
89 /* The parsed colors */
94 uint32_t active_ws_fg;
95 uint32_t active_ws_bg;
96 uint32_t active_ws_border;
97 uint32_t inactive_ws_fg;
98 uint32_t inactive_ws_bg;
99 uint32_t inactive_ws_border;
100 uint32_t urgent_ws_bg;
101 uint32_t urgent_ws_fg;
102 uint32_t urgent_ws_border;
103 uint32_t focus_ws_bg;
104 uint32_t focus_ws_fg;
105 uint32_t focus_ws_border;
107 struct xcb_colors_t colors;
109 /* Horizontal offset between a workspace label and button borders */
110 static const int ws_hoff_px = 4;
112 /* Vertical offset between a workspace label and button borders */
113 static const int ws_voff_px = 3;
115 /* Offset between two workspace buttons */
116 static const int ws_spacing_px = 1;
118 /* Offset between the statusline and 1) workspace buttons on the left
119 * 2) the tray or screen edge on the right */
120 static const int sb_hoff_px = 4;
122 /* Additional offset between the tray and the statusline, if the tray is not empty */
123 static const int tray_loff_px = 2;
125 /* Vertical offset between the bar and a separator */
126 static const int sep_voff_px = 4;
128 /* We define xcb_request_failed as a macro to include the relevant line number */
129 #define xcb_request_failed(cookie, err_msg) _xcb_request_failed(cookie, err_msg, __LINE__)
130 int _xcb_request_failed(xcb_void_cookie_t cookie, char *err_msg, int line) {
131 xcb_generic_error_t *err;
132 if ((err = xcb_request_check(xcb_connection, cookie)) != NULL) {
133 fprintf(stderr, "[%s:%d] ERROR: %s. X Error Code: %d\n", __FILE__, line, err_msg, err->error_code);
134 return err->error_code;
139 uint32_t get_sep_offset(struct status_block *block) {
140 if (!block->no_separator && block->sep_block_width > 0)
141 return block->sep_block_width / 2 + block->sep_block_width % 2;
145 int get_tray_width(struct tc_head *trayclients) {
146 trayclient *trayclient;
148 TAILQ_FOREACH_REVERSE(trayclient, trayclients, tc_head, tailq) {
149 if (!trayclient->mapped)
151 tray_width += font.height + logical_px(2);
154 tray_width += logical_px(tray_loff_px);
159 * Draws a separator for the given block if necessary.
162 static void draw_separator(uint32_t x, struct status_block *block) {
163 uint32_t sep_offset = get_sep_offset(block);
164 if (TAILQ_NEXT(block, blocks) == NULL || sep_offset == 0)
167 uint32_t center_x = x - sep_offset;
168 if (config.separator_symbol == NULL) {
169 /* Draw a classic one pixel, vertical separator. */
170 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_LINE_WIDTH;
171 uint32_t values[] = {colors.sep_fg, colors.bar_bg, logical_px(1)};
172 xcb_change_gc(xcb_connection, statusline_ctx, mask, values);
173 xcb_poly_line(xcb_connection, XCB_COORD_MODE_ORIGIN, statusline_pm, statusline_ctx, 2,
174 (xcb_point_t[]){{center_x, logical_px(sep_voff_px)},
175 {center_x, bar_height - logical_px(sep_voff_px)}});
177 /* Draw a custom separator. */
178 uint32_t separator_x = MAX(x - block->sep_block_width, center_x - separator_symbol_width / 2);
179 set_font_colors(statusline_ctx, colors.sep_fg, colors.bar_bg);
180 draw_text(config.separator_symbol, statusline_pm, statusline_ctx,
181 separator_x, logical_px(ws_voff_px), x - separator_x);
186 * Redraws the statusline to the buffer
189 void refresh_statusline(bool use_short_text) {
190 struct status_block *block;
192 uint32_t old_statusline_width = statusline_width;
193 statusline_width = 0;
195 /* Predict the text width of all blocks (in pixels). */
196 TAILQ_FOREACH(block, &statusline_head, blocks) {
197 /* Try to use the shorter text if necessary and possible. */
198 if (use_short_text && block->short_text != NULL) {
199 I3STRING_FREE(block->full_text);
200 block->full_text = i3string_copy(block->short_text);
203 if (i3string_get_num_bytes(block->full_text) == 0)
206 block->width = predict_text_width(block->full_text);
208 /* Compute offset and append for text aligment in min_width. */
209 if (block->min_width <= block->width) {
213 uint32_t padding_width = block->min_width - block->width;
214 switch (block->align) {
216 block->x_append = padding_width;
219 block->x_offset = padding_width;
222 block->x_offset = padding_width / 2;
223 block->x_append = padding_width / 2 + padding_width % 2;
228 /* If this is not the last block, add some pixels for a separator. */
229 if (TAILQ_NEXT(block, blocks) != NULL)
230 statusline_width += block->sep_block_width;
232 statusline_width += block->width + block->x_offset + block->x_append;
235 /* If the statusline is bigger than our screen we need to make sure that
236 * the pixmap provides enough space, so re-allocate if the width grew */
237 if (statusline_width > root_screen->width_in_pixels &&
238 statusline_width > old_statusline_width)
241 /* Clear the statusline pixmap. */
242 xcb_rectangle_t rect = {0, 0, MAX(root_screen->width_in_pixels, statusline_width), bar_height};
243 xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_clear, 1, &rect);
245 /* Draw the text of each block. */
247 TAILQ_FOREACH(block, &statusline_head, blocks) {
248 if (i3string_get_num_bytes(block->full_text) == 0)
252 /* If this block is urgent, draw it with the defined color and border. */
254 fg_color = colors.urgent_ws_fg;
256 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
258 /* Draw the background */
259 uint32_t bg_color = colors.urgent_ws_bg;
260 uint32_t bg_values[] = {bg_color, bg_color};
261 xcb_change_gc(xcb_connection, statusline_ctx, mask, bg_values);
263 /* The urgent background “overshoots” by 2 px so that the text that
264 * is printed onto it will not be look so cut off. */
265 xcb_rectangle_t bg_rect = {x - logical_px(2), logical_px(1), block->width + logical_px(4), bar_height - logical_px(2)};
266 xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_ctx, 1, &bg_rect);
268 fg_color = (block->color ? get_colorpixel(block->color) : colors.bar_fg);
271 set_font_colors(statusline_ctx, fg_color, colors.bar_bg);
272 draw_text(block->full_text, statusline_pm, statusline_ctx, x + block->x_offset, logical_px(ws_voff_px), block->width);
273 x += block->width + block->sep_block_width + block->x_offset + block->x_append;
275 /* If this is not the last block, draw a separator. */
276 draw_separator(x, block);
281 * Hides all bars (unmaps them)
284 void hide_bars(void) {
285 if ((config.hide_on_modifier == M_DOCK) || (config.hidden_state == S_SHOW && config.hide_on_modifier == M_HIDE)) {
290 SLIST_FOREACH(walk, outputs, slist) {
294 xcb_unmap_window(xcb_connection, walk->bar);
300 * Unhides all bars (maps them)
303 void unhide_bars(void) {
304 if (config.hide_on_modifier != M_HIDE) {
309 xcb_void_cookie_t cookie;
315 SLIST_FOREACH(walk, outputs, slist) {
316 if (walk->bar == XCB_NONE) {
319 mask = XCB_CONFIG_WINDOW_X |
320 XCB_CONFIG_WINDOW_Y |
321 XCB_CONFIG_WINDOW_WIDTH |
322 XCB_CONFIG_WINDOW_HEIGHT |
323 XCB_CONFIG_WINDOW_STACK_MODE;
324 values[0] = walk->rect.x;
325 if (config.position == POS_TOP)
326 values[1] = walk->rect.y;
328 values[1] = walk->rect.y + walk->rect.h - bar_height;
329 values[2] = walk->rect.w;
330 values[3] = bar_height;
331 values[4] = XCB_STACK_MODE_ABOVE;
332 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
333 cookie = xcb_configure_window_checked(xcb_connection,
338 if (xcb_request_failed(cookie, "Could not reconfigure window")) {
341 xcb_map_window(xcb_connection, walk->bar);
346 * Parse the colors into a format that we can use
349 void init_colors(const struct xcb_color_strings_t *new_colors) {
350 #define PARSE_COLOR(name, def) \
352 colors.name = get_colorpixel(new_colors->name ? new_colors->name : def); \
354 PARSE_COLOR(bar_fg, "#FFFFFF");
355 PARSE_COLOR(bar_bg, "#000000");
356 PARSE_COLOR(sep_fg, "#666666");
357 PARSE_COLOR(active_ws_fg, "#FFFFFF");
358 PARSE_COLOR(active_ws_bg, "#333333");
359 PARSE_COLOR(active_ws_border, "#333333");
360 PARSE_COLOR(inactive_ws_fg, "#888888");
361 PARSE_COLOR(inactive_ws_bg, "#222222");
362 PARSE_COLOR(inactive_ws_border, "#333333");
363 PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
364 PARSE_COLOR(urgent_ws_bg, "#900000");
365 PARSE_COLOR(urgent_ws_border, "#2f343a");
366 PARSE_COLOR(focus_ws_fg, "#FFFFFF");
367 PARSE_COLOR(focus_ws_bg, "#285577");
368 PARSE_COLOR(focus_ws_border, "#4c7899");
372 xcb_flush(xcb_connection);
376 * Handle a button press event (i.e. a mouse click on one of our bars).
377 * We determine, whether the click occured on a workspace button or if the scroll-
378 * wheel was used and change the workspace appropriately
381 void handle_button(xcb_button_press_event_t *event) {
382 /* Determine, which bar was clicked */
384 xcb_window_t bar = event->event;
385 SLIST_FOREACH(walk, outputs, slist) {
386 if (walk->bar == bar) {
392 DLOG("Unknown bar clicked!\n");
396 int32_t x = event->event_x >= 0 ? event->event_x : 0;
397 int32_t original_x = x;
399 DLOG("Got button %d\n", event->detail);
401 int workspace_width = 0;
402 i3_ws *cur_ws = NULL, *clicked_ws = NULL, *ws_walk;
404 TAILQ_FOREACH(ws_walk, walk->workspaces, tailq) {
405 int w = 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
406 if (x >= workspace_width && x <= workspace_width + w)
407 clicked_ws = ws_walk;
408 if (ws_walk->visible)
410 workspace_width += w;
411 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
412 workspace_width += logical_px(ws_spacing_px);
415 if (x > workspace_width && child_want_click_events()) {
416 /* If the child asked for click events,
417 * check if a status block has been clicked. */
418 int tray_width = get_tray_width(walk->trayclients);
419 int block_x = 0, last_block_x;
420 int offset = walk->rect.w - statusline_width - tray_width - logical_px(sb_hoff_px);
422 x = original_x - offset;
424 struct status_block *block;
425 int sep_offset_remainder = 0;
427 TAILQ_FOREACH(block, &statusline_head, blocks) {
428 if (i3string_get_num_bytes(block->full_text) == 0)
431 last_block_x = block_x;
432 block_x += block->width + block->x_offset + block->x_append + get_sep_offset(block) + sep_offset_remainder;
434 if (x <= block_x && x >= last_block_x) {
435 send_block_clicked(event->detail, block->name, block->instance, event->root_x, event->root_y);
439 sep_offset_remainder = block->sep_block_width - get_sep_offset(block);
445 if (cur_ws == NULL) {
446 DLOG("No workspace active?\n");
450 switch (event->detail) {
452 /* Mouse wheel up. We select the previous ws, if any.
453 * If there is no more workspace, don’t even send the workspace
454 * command, otherwise (with workspace auto_back_and_forth) we’d end
455 * up on the wrong workspace. */
457 /* If `wheel_up_cmd [COMMAND]` was specified, it should override
458 * the default behavior */
459 if (config.wheel_up_cmd) {
460 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, config.wheel_up_cmd);
464 if (cur_ws == TAILQ_FIRST(walk->workspaces))
467 cur_ws = TAILQ_PREV(cur_ws, ws_head, tailq);
470 /* Mouse wheel down. We select the next ws, if any.
471 * If there is no more workspace, don’t even send the workspace
472 * command, otherwise (with workspace auto_back_and_forth) we’d end
473 * up on the wrong workspace. */
475 /* if `wheel_down_cmd [COMMAND]` was specified, it should override
476 * the default behavior */
477 if (config.wheel_down_cmd) {
478 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, config.wheel_down_cmd);
482 if (cur_ws == TAILQ_LAST(walk->workspaces, ws_head))
485 cur_ws = TAILQ_NEXT(cur_ws, tailq);
490 /* if no workspace was clicked, focus our currently visible
491 * workspace if it is not already focused */
492 if (cur_ws == NULL) {
493 TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
494 if (cur_ws->visible && !cur_ws->focused)
499 /* if there is nothing to focus, we are done */
508 /* To properly handle workspace names with double quotes in them, we need
509 * to escape the double quotes. Unfortunately, that’s rather ugly in C: We
510 * first count the number of double quotes, then we allocate a large enough
511 * buffer, then we copy character by character. */
514 const char *utf8_name = cur_ws->canonical_name;
515 for (const char *walk = utf8_name; *walk != '\0'; walk++) {
516 if (*walk == '"' || *walk == '\\')
518 /* While we’re looping through the name anyway, we can save one
523 const size_t len = namelen + strlen("workspace \"\"") + 1;
524 char *buffer = scalloc(len + num_quotes);
525 strncpy(buffer, "workspace \"", strlen("workspace \""));
526 size_t inpos, outpos;
527 for (inpos = 0, outpos = strlen("workspace \"");
530 if (utf8_name[inpos] == '"' || utf8_name[inpos] == '\\') {
531 buffer[outpos] = '\\';
534 buffer[outpos] = utf8_name[inpos];
536 buffer[outpos] = '"';
537 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, buffer);
542 * Handle visibility notifications: when none of the bars are visible, e.g.
543 * if windows are in fullscreen on each output, suspend the child process.
546 static void handle_visibility_notify(xcb_visibility_notify_event_t *event) {
547 bool visible = (event->state != XCB_VISIBILITY_FULLY_OBSCURED);
551 SLIST_FOREACH(output, outputs, slist) {
552 if (!output->active) {
555 if (output->bar == event->window) {
556 if (output->visible == visible) {
559 output->visible = visible;
561 num_visible += output->visible;
564 if (num_visible == 0) {
566 } else if (num_visible == visible) {
567 /* Wake the child only when transitioning from 0 to 1 visible bar.
568 * We cannot transition from 0 to 2 or more visible bars at once since
569 * visibility events are delivered to each window separately */
575 * Adjusts the size of the tray window and alignment of the tray clients by
576 * configuring their respective x coordinates. To be called when mapping or
577 * unmapping a tray client window.
580 static void configure_trayclients(void) {
581 trayclient *trayclient;
583 SLIST_FOREACH(output, outputs, slist) {
588 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
589 if (!trayclient->mapped)
593 DLOG("Configuring tray window %08x to x=%d\n",
594 trayclient->win, output->rect.w - (clients * (font.height + logical_px(2))));
595 uint32_t x = output->rect.w - (clients * (font.height + logical_px(2)));
596 xcb_configure_window(xcb_connection,
605 * Handles ClientMessages (messages sent from another client directly to us).
607 * At the moment, only the tray window will receive client messages. All
608 * supported client messages currently are _NET_SYSTEM_TRAY_OPCODE.
611 static void handle_client_message(xcb_client_message_event_t *event) {
612 if (event->type == atoms[_NET_SYSTEM_TRAY_OPCODE] &&
613 event->format == 32) {
614 DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
615 /* event->data.data32[0] is the timestamp */
616 uint32_t op = event->data.data32[1];
619 if (op == SYSTEM_TRAY_REQUEST_DOCK) {
620 xcb_window_t client = event->data.data32[2];
622 /* Listen for PropertyNotify events to get the most recent value of
623 * the XEMBED_MAPPED atom, also listen for UnmapNotify events */
624 mask = XCB_CW_EVENT_MASK;
625 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
626 XCB_EVENT_MASK_STRUCTURE_NOTIFY;
627 xcb_change_window_attributes(xcb_connection,
632 /* Request the _XEMBED_INFO property. The XEMBED specification
633 * (which is referred by the tray specification) says this *has* to
634 * be set, but VLC does not set it… */
637 xcb_get_property_cookie_t xembedc;
638 xcb_generic_error_t *error;
639 xembedc = xcb_get_property(xcb_connection,
643 XCB_GET_PROPERTY_TYPE_ANY,
647 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
651 ELOG("Error getting _XEMBED_INFO property: error_code %d\n",
656 if (xembedr != NULL && xembedr->length != 0) {
657 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
658 uint32_t *xembed = xcb_get_property_value(xembedr);
659 DLOG("xembed version = %d\n", xembed[0]);
660 DLOG("xembed flags = %d\n", xembed[1]);
661 map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
662 xe_version = xembed[0];
667 ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
670 DLOG("X window %08x requested docking\n", client);
671 i3_output *walk, *output = NULL;
672 SLIST_FOREACH(walk, outputs, slist) {
675 if (config.tray_output) {
676 if ((strcasecmp(walk->name, config.tray_output) != 0) &&
677 (!walk->primary || strcasecmp("primary", config.tray_output) != 0))
681 DLOG("using output %s\n", walk->name);
685 /* In case of tray_output == primary and there is no primary output
686 * configured, we fall back to the first available output. */
687 if (output == NULL &&
688 config.tray_output &&
689 strcasecmp("primary", config.tray_output) == 0) {
690 SLIST_FOREACH(walk, outputs, slist) {
693 DLOG("Falling back to output %s because no primary output is configured\n", walk->name);
698 if (output == NULL) {
699 ELOG("No output found\n");
702 xcb_reparent_window(xcb_connection,
705 output->rect.w - font.height - 2,
707 /* We reconfigure the window to use a reasonable size. The systray
708 * specification explicitly says:
709 * Tray icons may be assigned any size by the system tray, and
710 * should do their best to cope with any size effectively
712 mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
713 values[0] = font.height;
714 values[1] = font.height;
715 xcb_configure_window(xcb_connection,
720 /* send the XEMBED_EMBEDDED_NOTIFY message */
721 void *event = scalloc(32);
722 xcb_client_message_event_t *ev = event;
723 ev->response_type = XCB_CLIENT_MESSAGE;
725 ev->type = atoms[_XEMBED];
727 ev->data.data32[0] = XCB_CURRENT_TIME;
728 ev->data.data32[1] = atoms[XEMBED_EMBEDDED_NOTIFY];
729 ev->data.data32[2] = output->bar;
730 ev->data.data32[3] = xe_version;
731 xcb_send_event(xcb_connection,
734 XCB_EVENT_MASK_NO_EVENT,
738 /* Put the client inside the save set. Upon termination (whether
739 * killed or normal exit does not matter) of i3bar, these clients
740 * will be correctly reparented to their most closest living
741 * ancestor. Without this, tray icons might die when i3bar
743 xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
745 trayclient *tc = smalloc(sizeof(trayclient));
747 tc->xe_version = xe_version;
749 TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
752 DLOG("Mapping dock client\n");
753 xcb_map_window(xcb_connection, client);
755 DLOG("Not mapping dock client yet\n");
757 /* Trigger an update to copy the statusline text to the appropriate
759 configure_trayclients();
766 * Handles DestroyNotify events by removing the tray client from the data
767 * structure. According to the XEmbed protocol, this is one way for a tray
768 * client to finish the protocol. After this event is received, there is no
769 * further interaction with the tray client.
771 * See: http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
774 static void handle_destroy_notify(xcb_destroy_notify_event_t *event) {
775 DLOG("DestroyNotify for window = %08x, event = %08x\n", event->window, event->event);
778 SLIST_FOREACH(walk, outputs, slist) {
781 DLOG("checking output %s\n", walk->name);
782 trayclient *trayclient;
783 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
784 if (trayclient->win != event->window)
787 DLOG("Removing tray client with window ID %08x\n", event->window);
788 TAILQ_REMOVE(walk->trayclients, trayclient, tailq);
790 /* Trigger an update, we now have more space for the statusline */
791 configure_trayclients();
799 * Handles MapNotify events. These events happen when a tray client shows its
800 * window. We respond by realigning the tray clients.
803 static void handle_map_notify(xcb_map_notify_event_t *event) {
804 DLOG("MapNotify for window = %08x, event = %08x\n", event->window, event->event);
807 SLIST_FOREACH(walk, outputs, slist) {
810 DLOG("checking output %s\n", walk->name);
811 trayclient *trayclient;
812 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
813 if (trayclient->win != event->window)
816 DLOG("Tray client mapped (window ID %08x). Adjusting tray.\n", event->window);
817 trayclient->mapped = true;
819 /* Trigger an update, we now have more space for the statusline */
820 configure_trayclients();
827 * Handles UnmapNotify events. These events happen when a tray client hides its
828 * window. We respond by realigning the tray clients.
831 static void handle_unmap_notify(xcb_unmap_notify_event_t *event) {
832 DLOG("UnmapNotify for window = %08x, event = %08x\n", event->window, event->event);
835 SLIST_FOREACH(walk, outputs, slist) {
838 DLOG("checking output %s\n", walk->name);
839 trayclient *trayclient;
840 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
841 if (trayclient->win != event->window)
844 DLOG("Tray client unmapped (window ID %08x). Adjusting tray.\n", event->window);
845 trayclient->mapped = false;
847 /* Trigger an update, we now have more space for the statusline */
848 configure_trayclients();
856 * Handle PropertyNotify messages. Currently only the _XEMBED_INFO property is
857 * handled, which tells us whether a dock client should be mapped or unmapped.
860 static void handle_property_notify(xcb_property_notify_event_t *event) {
861 DLOG("PropertyNotify\n");
862 if (event->atom == atoms[_XEMBED_INFO] &&
863 event->state == XCB_PROPERTY_NEW_VALUE) {
864 DLOG("xembed_info updated\n");
865 trayclient *trayclient = NULL, *walk;
867 SLIST_FOREACH(o_walk, outputs, slist) {
871 TAILQ_FOREACH(walk, o_walk->trayclients, tailq) {
872 if (walk->win != event->window)
882 ELOG("PropertyNotify received for unknown window %08x\n",
886 xcb_get_property_cookie_t xembedc;
887 xembedc = xcb_get_property_unchecked(xcb_connection,
891 XCB_GET_PROPERTY_TYPE_ANY,
895 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
898 if (xembedr == NULL || xembedr->length == 0) {
899 DLOG("xembed_info unset\n");
903 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
904 uint32_t *xembed = xcb_get_property_value(xembedr);
905 DLOG("xembed version = %d\n", xembed[0]);
906 DLOG("xembed flags = %d\n", xembed[1]);
907 bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
908 DLOG("map state now %d\n", map_it);
909 if (trayclient->mapped && !map_it) {
910 /* need to unmap the window */
911 xcb_unmap_window(xcb_connection, trayclient->win);
912 } else if (!trayclient->mapped && map_it) {
913 /* need to map the window */
914 xcb_map_window(xcb_connection, trayclient->win);
921 * Handle ConfigureRequests by denying them and sending the client a
922 * ConfigureNotify with its actual size.
925 static void handle_configure_request(xcb_configure_request_event_t *event) {
926 DLOG("ConfigureRequest for window = %08x\n", event->window);
928 trayclient *trayclient;
930 SLIST_FOREACH(output, outputs, slist) {
935 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
936 if (!trayclient->mapped)
940 if (trayclient->win != event->window)
943 xcb_rectangle_t rect;
944 rect.x = output->rect.w - (clients * (font.height + 2));
946 rect.width = font.height;
947 rect.height = font.height;
949 DLOG("This is a tray window. x = %d\n", rect.x);
950 fake_configure_notify(xcb_connection, rect, event->window, 0);
955 DLOG("WARNING: Could not find corresponding tray window.\n");
959 * This function is called immediately before the main loop locks. We flush xcb
960 * then (and only then)
963 void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
964 xcb_flush(xcb_connection);
968 * This function is called immediately after the main loop locks, so when one
969 * of the watchers registered an event.
970 * We check whether an X-Event arrived and handle it.
973 void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
974 xcb_generic_event_t *event;
976 if (xcb_connection_has_error(xcb_connection)) {
977 ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
981 while ((event = xcb_poll_for_event(xcb_connection)) != NULL) {
982 int type = (event->response_type & ~0x80);
984 if (type == xkb_base && xkb_base > -1) {
985 DLOG("received an xkb event\n");
987 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
988 if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
989 int modstate = state->mods & config.modifier;
991 #define DLOGMOD(modmask, status) \
995 DLOG("ShiftMask got " #status "!\n"); \
998 DLOG("ControlMask got " #status "!\n"); \
1001 DLOG("Mod1Mask got " #status "!\n"); \
1004 DLOG("Mod2Mask got " #status "!\n"); \
1007 DLOG("Mod3Mask got " #status "!\n"); \
1010 DLOG("Mod4Mask got " #status "!\n"); \
1013 DLOG("Mod5Mask got " #status "!\n"); \
1018 if (modstate != mod_pressed) {
1019 if (modstate == 0) {
1020 DLOGMOD(config.modifier, released);
1021 if (!activated_mode)
1024 DLOGMOD(config.modifier, pressed);
1025 activated_mode = false;
1028 mod_pressed = modstate;
1038 case XCB_VISIBILITY_NOTIFY:
1039 /* Visibility change: a bar is [un]obscured by other window */
1040 handle_visibility_notify((xcb_visibility_notify_event_t *)event);
1043 /* Expose-events happen, when the window needs to be redrawn */
1046 case XCB_BUTTON_PRESS:
1047 /* Button press events are mouse buttons clicked on one of our bars */
1048 handle_button((xcb_button_press_event_t *)event);
1050 case XCB_CLIENT_MESSAGE:
1051 /* Client messages are used for client-to-client communication, for
1052 * example system tray widgets talk to us directly via client messages. */
1053 handle_client_message((xcb_client_message_event_t *)event);
1055 case XCB_DESTROY_NOTIFY:
1056 /* DestroyNotify signifies the end of the XEmbed protocol */
1057 handle_destroy_notify((xcb_destroy_notify_event_t *)event);
1059 case XCB_UNMAP_NOTIFY:
1060 /* UnmapNotify is received when a tray client hides its window. */
1061 handle_unmap_notify((xcb_unmap_notify_event_t *)event);
1063 case XCB_MAP_NOTIFY:
1064 handle_map_notify((xcb_map_notify_event_t *)event);
1066 case XCB_PROPERTY_NOTIFY:
1067 /* PropertyNotify */
1068 handle_property_notify((xcb_property_notify_event_t *)event);
1070 case XCB_CONFIGURE_REQUEST:
1071 /* ConfigureRequest, sent by a tray child */
1072 handle_configure_request((xcb_configure_request_event_t *)event);
1080 * Dummy callback. We only need this, so that the prepare and check watchers
1084 void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
1088 * Early initialization of the connection to X11: Everything which does not
1089 * depend on 'config'.
1092 char *init_xcb_early() {
1093 /* FIXME: xcb_connect leaks memory */
1094 xcb_connection = xcb_connect(NULL, &screen);
1095 if (xcb_connection_has_error(xcb_connection)) {
1096 ELOG("Cannot open display\n");
1099 conn = xcb_connection;
1100 DLOG("Connected to xcb\n");
1102 /* We have to request the atoms we need */
1103 #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
1104 #include "xcb_atoms.def"
1106 root_screen = xcb_aux_get_screen(xcb_connection, screen);
1107 xcb_root = root_screen->root;
1109 /* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
1110 * this way, we can choose to crop it */
1111 uint32_t mask = XCB_GC_FOREGROUND;
1112 uint32_t vals[] = {colors.bar_bg, colors.bar_bg};
1114 statusline_clear = xcb_generate_id(xcb_connection);
1115 xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1121 statusline_ctx = xcb_generate_id(xcb_connection);
1122 xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1128 statusline_pm = xcb_generate_id(xcb_connection);
1129 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1130 root_screen->root_depth,
1133 root_screen->width_in_pixels,
1134 root_screen->height_in_pixels);
1136 /* The various watchers to communicate with xcb */
1137 xcb_io = smalloc(sizeof(ev_io));
1138 xcb_prep = smalloc(sizeof(ev_prepare));
1139 xcb_chk = smalloc(sizeof(ev_check));
1141 ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
1142 ev_prepare_init(xcb_prep, &xcb_prep_cb);
1143 ev_check_init(xcb_chk, &xcb_chk_cb);
1145 ev_io_start(main_loop, xcb_io);
1146 ev_prepare_start(main_loop, xcb_prep);
1147 ev_check_start(main_loop, xcb_chk);
1149 /* Now we get the atoms and save them in a nice data structure */
1152 char *path = root_atom_contents("I3_SOCKET_PATH", xcb_connection, screen);
1154 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer") ||
1155 xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline buffer clearcontext") ||
1156 xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline buffer context")) {
1164 * Register for xkb keyevents. To grab modifiers without blocking other applications from receiving key events
1165 * involving that modifier, we sadly have to use xkb which is not yet fully supported
1169 void register_xkb_keyevents() {
1170 const xcb_query_extension_reply_t *extreply;
1171 extreply = xcb_get_extension_data(conn, &xcb_xkb_id);
1172 if (!extreply->present) {
1173 ELOG("xkb is not present on this server\n");
1176 DLOG("initializing xcb-xkb\n");
1177 xcb_xkb_use_extension(conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION);
1178 xcb_xkb_select_events(conn,
1179 XCB_XKB_ID_USE_CORE_KBD,
1180 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1182 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1186 xkb_base = extreply->first_event;
1190 * Deregister from xkb keyevents.
1193 void deregister_xkb_keyevents() {
1194 xcb_xkb_select_events(conn,
1195 XCB_XKB_ID_USE_CORE_KBD,
1205 * Initialization which depends on 'config' being usable. Called after the
1206 * configuration has arrived.
1209 void init_xcb_late(char *fontname) {
1210 if (fontname == NULL)
1211 fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
1214 font = load_font(fontname, true);
1216 DLOG("Calculated font height: %d\n", font.height);
1217 bar_height = font.height + 2 * logical_px(ws_voff_px);
1219 if (config.separator_symbol)
1220 separator_symbol_width = predict_text_width(config.separator_symbol);
1222 xcb_flush(xcb_connection);
1224 if (config.hide_on_modifier == M_HIDE)
1225 register_xkb_keyevents();
1229 * Inform clients waiting for a new _NET_SYSTEM_TRAY that we took the
1233 static void send_tray_clientmessage(void) {
1234 uint8_t buffer[32] = {0};
1235 xcb_client_message_event_t *ev = (xcb_client_message_event_t *)buffer;
1237 ev->response_type = XCB_CLIENT_MESSAGE;
1238 ev->window = xcb_root;
1239 ev->type = atoms[MANAGER];
1241 ev->data.data32[0] = XCB_CURRENT_TIME;
1242 ev->data.data32[1] = tray_reply->atom;
1243 ev->data.data32[2] = selwin;
1245 xcb_send_event(xcb_connection,
1253 * Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
1254 * for the X11 display we are running on, then acquiring the selection for this
1255 * atom. Afterwards, tray clients will send ClientMessages to our window.
1258 void init_tray(void) {
1259 DLOG("Initializing system tray functionality\n");
1260 /* request the tray manager atom for the X11 display we are running on */
1261 char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
1262 snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
1263 xcb_intern_atom_cookie_t tray_cookie;
1264 if (tray_reply == NULL)
1265 tray_cookie = xcb_intern_atom(xcb_connection, 0, strlen(atomname), atomname);
1267 /* tray support: we need a window to own the selection */
1268 selwin = xcb_generate_id(xcb_connection);
1269 uint32_t selmask = XCB_CW_OVERRIDE_REDIRECT;
1270 uint32_t selval[] = {1};
1271 xcb_create_window(xcb_connection,
1272 root_screen->root_depth,
1278 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1279 root_screen->root_visual,
1283 uint32_t orientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
1285 xcb_change_property(xcb_connection,
1286 XCB_PROP_MODE_REPLACE,
1288 atoms[_NET_SYSTEM_TRAY_ORIENTATION],
1296 if (tray_reply == NULL) {
1297 if (!(tray_reply = xcb_intern_atom_reply(xcb_connection, tray_cookie, NULL))) {
1298 ELOG("Could not get atom %s\n", atomname);
1303 xcb_set_selection_owner(xcb_connection,
1308 /* Verify that we have the selection */
1309 xcb_get_selection_owner_cookie_t selcookie;
1310 xcb_get_selection_owner_reply_t *selreply;
1312 selcookie = xcb_get_selection_owner(xcb_connection, tray_reply->atom);
1313 if (!(selreply = xcb_get_selection_owner_reply(xcb_connection, selcookie, NULL))) {
1314 ELOG("Could not get selection owner for %s\n", atomname);
1318 if (selreply->owner != selwin) {
1319 ELOG("Could not set the %s selection. "
1320 "Maybe another tray is already running?\n",
1322 /* NOTE that this error is not fatal. We just can’t provide tray
1328 send_tray_clientmessage();
1332 * We need to set the _NET_SYSTEM_TRAY_COLORS atom on the tray selection window
1333 * to make GTK+ 3 applets with symbolic icons visible. If the colors are unset,
1334 * they assume a light background.
1335 * See also https://bugzilla.gnome.org/show_bug.cgi?id=679591
1338 void init_tray_colors(void) {
1339 /* Convert colors.bar_fg (#rrggbb) to 16-bit RGB */
1340 const char *bar_fg = (config.colors.bar_fg ? config.colors.bar_fg : "#FFFFFF");
1342 DLOG("Setting bar_fg = %s as _NET_SYSTEM_TRAY_COLORS\n", bar_fg);
1344 char strgroups[3][3] = {{bar_fg[1], bar_fg[2], '\0'},
1345 {bar_fg[3], bar_fg[4], '\0'},
1346 {bar_fg[5], bar_fg[6], '\0'}};
1347 const uint8_t r = strtol(strgroups[0], NULL, 16);
1348 const uint8_t g = strtol(strgroups[1], NULL, 16);
1349 const uint8_t b = strtol(strgroups[2], NULL, 16);
1351 const uint16_t r16 = ((uint16_t)r << 8) | r;
1352 const uint16_t g16 = ((uint16_t)g << 8) | g;
1353 const uint16_t b16 = ((uint16_t)b << 8) | b;
1355 const uint32_t tray_colors[12] = {
1356 r16, g16, b16, /* foreground color */
1357 r16, g16, b16, /* error color */
1358 r16, g16, b16, /* warning color */
1359 r16, g16, b16, /* success color */
1362 xcb_change_property(xcb_connection,
1363 XCB_PROP_MODE_REPLACE,
1365 atoms[_NET_SYSTEM_TRAY_COLORS],
1373 * Cleanup the xcb stuff.
1374 * Called once, before the program terminates.
1377 void clean_xcb(void) {
1380 SLIST_FOREACH(o_walk, outputs, slist) {
1381 destroy_window(o_walk);
1382 FREE(o_walk->trayclients);
1383 FREE(o_walk->workspaces);
1386 FREE_SLIST(outputs, i3_output);
1389 xcb_flush(xcb_connection);
1390 xcb_aux_sync(xcb_connection);
1391 xcb_disconnect(xcb_connection);
1393 ev_check_stop(main_loop, xcb_chk);
1394 ev_prepare_stop(main_loop, xcb_prep);
1395 ev_io_stop(main_loop, xcb_io);
1403 * Get the earlier requested atoms and save them in the prepared data structure
1406 void get_atoms(void) {
1407 xcb_intern_atom_reply_t *reply;
1408 #define ATOM_DO(name) \
1409 reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
1410 if (reply == NULL) { \
1411 ELOG("Could not get atom %s\n", #name); \
1412 exit(EXIT_FAILURE); \
1414 atoms[name] = reply->atom; \
1417 #include "xcb_atoms.def"
1418 DLOG("Got atoms\n");
1422 * Reparents all tray clients of the specified output to the root window. This
1423 * is either used when shutting down, when an output appears (xrandr --output
1424 * VGA1 --off) or when the primary output changes.
1426 * Applications using the tray will start the protocol from the beginning again
1430 void kick_tray_clients(i3_output *output) {
1431 if (TAILQ_EMPTY(output->trayclients))
1434 trayclient *trayclient;
1435 while (!TAILQ_EMPTY(output->trayclients)) {
1436 trayclient = TAILQ_FIRST(output->trayclients);
1437 /* Unmap, then reparent (to root) the tray client windows */
1438 xcb_unmap_window(xcb_connection, trayclient->win);
1439 xcb_reparent_window(xcb_connection,
1445 /* We remove the trayclient right here. We might receive an UnmapNotify
1446 * event afterwards, but better safe than sorry. */
1447 TAILQ_REMOVE(output->trayclients, trayclient, tailq);
1450 /* Fake a DestroyNotify so that Qt re-adds tray icons.
1451 * We cannot actually destroy the window because then Qt will not restore
1452 * its event mask on the new window. */
1453 uint8_t buffer[32] = {0};
1454 xcb_destroy_notify_event_t *event = (xcb_destroy_notify_event_t *)buffer;
1456 event->response_type = XCB_DESTROY_NOTIFY;
1457 event->event = selwin;
1458 event->window = selwin;
1460 xcb_send_event(conn, false, selwin, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *)event);
1462 send_tray_clientmessage();
1466 * Destroy the bar of the specified output
1469 void destroy_window(i3_output *output) {
1470 if (output == NULL) {
1473 if (output->bar == XCB_NONE) {
1477 kick_tray_clients(output);
1478 xcb_destroy_window(xcb_connection, output->bar);
1479 output->bar = XCB_NONE;
1483 * Reallocate the statusline buffer
1486 void realloc_sl_buffer(void) {
1487 DLOG("Re-allocating statusline buffer, statusline_width = %d, root_screen->width_in_pixels = %d\n",
1488 statusline_width, root_screen->width_in_pixels);
1489 xcb_free_pixmap(xcb_connection, statusline_pm);
1490 statusline_pm = xcb_generate_id(xcb_connection);
1491 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1492 root_screen->root_depth,
1495 MAX(root_screen->width_in_pixels, statusline_width),
1498 uint32_t mask = XCB_GC_FOREGROUND;
1499 uint32_t vals[2] = {colors.bar_bg, colors.bar_bg};
1500 xcb_free_gc(xcb_connection, statusline_clear);
1501 statusline_clear = xcb_generate_id(xcb_connection);
1502 xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1508 mask |= XCB_GC_BACKGROUND;
1509 vals[0] = colors.bar_fg;
1510 xcb_free_gc(xcb_connection, statusline_ctx);
1511 statusline_ctx = xcb_generate_id(xcb_connection);
1512 xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1518 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer") ||
1519 xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline buffer clearcontext") ||
1520 xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline buffer context")) {
1525 /* Strut partial tells i3 where to reserve space for i3bar. This is determined
1526 * by the `position` bar config directive. */
1527 xcb_void_cookie_t config_strut_partial(i3_output *output) {
1528 /* A local struct to save the strut_partial property */
1534 uint32_t left_start_y;
1535 uint32_t left_end_y;
1536 uint32_t right_start_y;
1537 uint32_t right_end_y;
1538 uint32_t top_start_x;
1540 uint32_t bottom_start_x;
1541 uint32_t bottom_end_x;
1542 } __attribute__((__packed__)) strut_partial;
1543 memset(&strut_partial, 0, sizeof(strut_partial));
1545 switch (config.position) {
1549 strut_partial.top = bar_height;
1550 strut_partial.top_start_x = output->rect.x;
1551 strut_partial.top_end_x = output->rect.x + output->rect.w;
1554 strut_partial.bottom = bar_height;
1555 strut_partial.bottom_start_x = output->rect.x;
1556 strut_partial.bottom_end_x = output->rect.x + output->rect.w;
1559 return xcb_change_property(xcb_connection,
1560 XCB_PROP_MODE_REPLACE,
1562 atoms[_NET_WM_STRUT_PARTIAL],
1570 * Reconfigure all bars and create new bars for recently activated outputs
1573 void reconfig_windows(bool redraw_bars) {
1576 static bool tray_configured = false;
1579 SLIST_FOREACH(walk, outputs, slist) {
1580 if (!walk->active) {
1581 /* If an output is not active, we destroy its bar */
1582 /* FIXME: Maybe we rather want to unmap? */
1583 DLOG("Destroying window for output %s\n", walk->name);
1584 destroy_window(walk);
1587 if (walk->bar == XCB_NONE) {
1588 DLOG("Creating window for output %s\n", walk->name);
1590 walk->bar = xcb_generate_id(xcb_connection);
1591 walk->buffer = xcb_generate_id(xcb_connection);
1592 mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
1593 /* Black background */
1594 values[0] = colors.bar_bg;
1595 /* If hide_on_modifier is set to hide or invisible mode, i3 is not supposed to manage our bar windows */
1596 values[1] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1597 /* We enable the following EventMask fields:
1598 * EXPOSURE, to get expose events (we have to re-draw then)
1599 * SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
1600 * child windows use ConfigureWindow
1601 * BUTTON_PRESS, to handle clicks on the workspace buttons
1603 values[2] = XCB_EVENT_MASK_EXPOSURE |
1604 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
1605 XCB_EVENT_MASK_BUTTON_PRESS;
1606 if (config.hide_on_modifier == M_DOCK) {
1607 /* If the bar is normally visible, catch visibility change events to suspend
1608 * the status process when the bar is obscured by full-screened windows. */
1609 values[2] |= XCB_EVENT_MASK_VISIBILITY_CHANGE;
1610 walk->visible = true;
1612 xcb_void_cookie_t win_cookie = xcb_create_window_checked(xcb_connection,
1613 root_screen->root_depth,
1616 walk->rect.x, walk->rect.y + walk->rect.h - bar_height,
1617 walk->rect.w, bar_height,
1619 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1620 root_screen->root_visual,
1624 /* The double-buffer we use to render stuff off-screen */
1625 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1626 root_screen->root_depth,
1632 /* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
1633 xcb_void_cookie_t class_cookie;
1634 class_cookie = xcb_change_property(xcb_connection,
1635 XCB_PROP_MODE_REPLACE,
1640 (strlen("i3bar") + 1) * 2,
1644 if (asprintf(&name, "i3bar for output %s", walk->name) == -1)
1645 err(EXIT_FAILURE, "asprintf()");
1646 xcb_void_cookie_t name_cookie;
1647 name_cookie = xcb_change_property(xcb_connection,
1648 XCB_PROP_MODE_REPLACE,
1657 /* We want dock windows (for now). When override_redirect is set, i3 is ignoring
1659 xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
1660 XCB_PROP_MODE_REPLACE,
1662 atoms[_NET_WM_WINDOW_TYPE],
1666 (unsigned char *)&atoms[_NET_WM_WINDOW_TYPE_DOCK]);
1668 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1670 /* We also want a graphics context for the bars (it defines the properties
1671 * with which we draw to them) */
1672 walk->bargc = xcb_generate_id(xcb_connection);
1673 xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(xcb_connection,
1679 /* We finally map the bar (display it on screen), unless the modifier-switch is on */
1680 xcb_void_cookie_t map_cookie;
1681 if (config.hide_on_modifier == M_DOCK) {
1682 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
1685 if (xcb_request_failed(win_cookie, "Could not create window") ||
1686 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1687 xcb_request_failed(dock_cookie, "Could not set dock mode") ||
1688 xcb_request_failed(class_cookie, "Could not set WM_CLASS") ||
1689 xcb_request_failed(name_cookie, "Could not set WM_NAME") ||
1690 xcb_request_failed(strut_cookie, "Could not set strut") ||
1691 xcb_request_failed(gc_cookie, "Could not create graphical context") ||
1692 ((config.hide_on_modifier == M_DOCK) && xcb_request_failed(map_cookie, "Could not map window"))) {
1696 const char *tray_output = (config.tray_output ? config.tray_output : SLIST_FIRST(outputs)->name);
1697 if (!tray_configured && strcasecmp(tray_output, "none") != 0) {
1698 /* Configuration sanity check: ensure this i3bar instance handles the output on
1699 * which the tray should appear (e.g. don’t initialize a tray if tray_output ==
1700 * VGA-1 but output == [HDMI-1]).
1703 SLIST_FOREACH(output, outputs, slist) {
1704 if (strcasecmp(output->name, tray_output) == 0 ||
1705 (strcasecmp(tray_output, "primary") == 0 && output->primary)) {
1710 tray_configured = true;
1713 /* We already have a bar, so we just reconfigure it */
1714 mask = XCB_CONFIG_WINDOW_X |
1715 XCB_CONFIG_WINDOW_Y |
1716 XCB_CONFIG_WINDOW_WIDTH |
1717 XCB_CONFIG_WINDOW_HEIGHT |
1718 XCB_CONFIG_WINDOW_STACK_MODE;
1719 values[0] = walk->rect.x;
1720 if (config.position == POS_TOP)
1721 values[1] = walk->rect.y;
1723 values[1] = walk->rect.y + walk->rect.h - bar_height;
1724 values[2] = walk->rect.w;
1725 values[3] = bar_height;
1726 values[4] = XCB_STACK_MODE_ABOVE;
1728 DLOG("Reconfiguring strut partial property for output %s\n", walk->name);
1729 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1731 DLOG("Destroying buffer for output %s\n", walk->name);
1732 xcb_free_pixmap(xcb_connection, walk->buffer);
1734 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
1735 xcb_void_cookie_t cfg_cookie = xcb_configure_window_checked(xcb_connection,
1740 mask = XCB_CW_OVERRIDE_REDIRECT;
1741 values[0] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1742 DLOG("Changing window attribute override_redirect for output %s to %d\n", walk->name, values[0]);
1743 xcb_void_cookie_t chg_cookie = xcb_change_window_attributes(xcb_connection,
1748 DLOG("Recreating buffer for output %s\n", walk->name);
1749 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1750 root_screen->root_depth,
1756 xcb_void_cookie_t map_cookie, umap_cookie;
1758 /* Unmap the window, and draw it again when in dock mode */
1759 umap_cookie = xcb_unmap_window_checked(xcb_connection, walk->bar);
1760 if (config.hide_on_modifier == M_DOCK) {
1762 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
1767 if (config.hide_on_modifier == M_HIDE) {
1768 /* Switching to hide mode, register for keyevents */
1769 register_xkb_keyevents();
1771 /* Switching to dock/invisible mode, deregister from keyevents */
1772 deregister_xkb_keyevents();
1776 if (xcb_request_failed(cfg_cookie, "Could not reconfigure window") ||
1777 xcb_request_failed(chg_cookie, "Could not change window") ||
1778 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1779 xcb_request_failed(strut_cookie, "Could not set strut") ||
1780 (redraw_bars && (xcb_request_failed(umap_cookie, "Could not unmap window") ||
1781 (config.hide_on_modifier == M_DOCK && xcb_request_failed(map_cookie, "Could not map window"))))) {
1789 * Render the bars, with buttons and statusline
1792 void draw_bars(bool unhide) {
1793 DLOG("Drawing bars...\n");
1794 int workspace_width = 0;
1796 refresh_statusline(false);
1798 i3_output *outputs_walk;
1799 SLIST_FOREACH(outputs_walk, outputs, slist) {
1800 if (!outputs_walk->active) {
1801 DLOG("Output %s inactive, skipping...\n", outputs_walk->name);
1804 if (outputs_walk->bar == XCB_NONE) {
1805 /* Oh shit, an active output without an own bar. Create it now! */
1806 reconfig_windows(false);
1808 /* First things first: clear the backbuffer */
1809 uint32_t color = colors.bar_bg;
1810 xcb_change_gc(xcb_connection,
1811 outputs_walk->bargc,
1814 xcb_rectangle_t rect = {0, 0, outputs_walk->rect.w, bar_height};
1815 xcb_poly_fill_rectangle(xcb_connection,
1816 outputs_walk->buffer,
1817 outputs_walk->bargc,
1821 if (!config.disable_ws) {
1823 TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
1824 DLOG("Drawing button for WS %s at x = %d, len = %d\n",
1825 i3string_as_utf8(ws_walk->name), workspace_width, ws_walk->name_width);
1826 uint32_t fg_color = colors.inactive_ws_fg;
1827 uint32_t bg_color = colors.inactive_ws_bg;
1828 uint32_t border_color = colors.inactive_ws_border;
1829 if (ws_walk->visible) {
1830 if (!ws_walk->focused) {
1831 fg_color = colors.active_ws_fg;
1832 bg_color = colors.active_ws_bg;
1833 border_color = colors.active_ws_border;
1835 fg_color = colors.focus_ws_fg;
1836 bg_color = colors.focus_ws_bg;
1837 border_color = colors.focus_ws_border;
1840 if (ws_walk->urgent) {
1841 DLOG("WS %s is urgent!\n", i3string_as_utf8(ws_walk->name));
1842 fg_color = colors.urgent_ws_fg;
1843 bg_color = colors.urgent_ws_bg;
1844 border_color = colors.urgent_ws_border;
1847 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
1848 uint32_t vals_border[] = {border_color, border_color};
1849 xcb_change_gc(xcb_connection,
1850 outputs_walk->bargc,
1853 xcb_rectangle_t rect_border = {workspace_width,
1855 ws_walk->name_width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1856 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1)};
1857 xcb_poly_fill_rectangle(xcb_connection,
1858 outputs_walk->buffer,
1859 outputs_walk->bargc,
1862 uint32_t vals[] = {bg_color, bg_color};
1863 xcb_change_gc(xcb_connection,
1864 outputs_walk->bargc,
1867 xcb_rectangle_t rect = {workspace_width + logical_px(1),
1869 ws_walk->name_width + 2 * logical_px(ws_hoff_px),
1870 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1)};
1871 xcb_poly_fill_rectangle(xcb_connection,
1872 outputs_walk->buffer,
1873 outputs_walk->bargc,
1876 set_font_colors(outputs_walk->bargc, fg_color, bg_color);
1877 draw_text(ws_walk->name, outputs_walk->buffer, outputs_walk->bargc,
1878 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1879 logical_px(ws_voff_px),
1880 ws_walk->name_width);
1882 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
1883 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
1884 workspace_width += logical_px(ws_spacing_px);
1888 if (binding.name && !config.disable_binding_mode_indicator) {
1889 workspace_width += logical_px(ws_spacing_px);
1891 uint32_t fg_color = colors.urgent_ws_fg;
1892 uint32_t bg_color = colors.urgent_ws_bg;
1893 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
1895 uint32_t vals_border[] = {colors.urgent_ws_border, colors.urgent_ws_border};
1896 xcb_change_gc(xcb_connection,
1897 outputs_walk->bargc,
1900 xcb_rectangle_t rect_border = {workspace_width,
1902 binding.width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1903 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1)};
1904 xcb_poly_fill_rectangle(xcb_connection,
1905 outputs_walk->buffer,
1906 outputs_walk->bargc,
1910 uint32_t vals[] = {bg_color, bg_color};
1911 xcb_change_gc(xcb_connection,
1912 outputs_walk->bargc,
1915 xcb_rectangle_t rect = {workspace_width + logical_px(1),
1917 binding.width + 2 * logical_px(ws_hoff_px),
1918 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1)};
1919 xcb_poly_fill_rectangle(xcb_connection,
1920 outputs_walk->buffer,
1921 outputs_walk->bargc,
1925 set_font_colors(outputs_walk->bargc, fg_color, bg_color);
1926 draw_text(binding.name,
1927 outputs_walk->buffer,
1928 outputs_walk->bargc,
1929 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1930 logical_px(ws_voff_px),
1934 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + binding.width;
1937 if (!TAILQ_EMPTY(&statusline_head)) {
1938 DLOG("Printing statusline!\n");
1940 int tray_width = get_tray_width(outputs_walk->trayclients);
1941 uint32_t max_statusline_width = outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px);
1943 /* If the statusline is too long, try to use short texts. */
1944 if (statusline_width > max_statusline_width)
1945 refresh_statusline(true);
1947 /* Luckily we already prepared a seperate pixmap containing the rendered
1948 * statusline, we just have to copy the relevant parts to the relevant
1950 int visible_statusline_width = MIN(statusline_width, max_statusline_width);
1951 xcb_copy_area(xcb_connection,
1953 outputs_walk->buffer,
1954 outputs_walk->bargc,
1955 (int16_t)(statusline_width - visible_statusline_width), 0,
1956 (int16_t)(outputs_walk->rect.w - tray_width - logical_px(sb_hoff_px) - visible_statusline_width), 0,
1957 (int16_t)visible_statusline_width, (int16_t)bar_height);
1960 workspace_width = 0;
1963 /* Assure the bar is hidden/unhidden according to the specified hidden_state and mode */
1965 config.hidden_state == S_SHOW ||
1968 } else if (config.hide_on_modifier == M_HIDE) {
1976 * Redraw the bars, i.e. simply copy the buffer to the barwindow
1979 void redraw_bars(void) {
1980 i3_output *outputs_walk;
1981 SLIST_FOREACH(outputs_walk, outputs, slist) {
1982 if (!outputs_walk->active) {
1985 xcb_copy_area(xcb_connection,
1986 outputs_walk->buffer,
1988 outputs_walk->bargc,
1991 outputs_walk->rect.w,
1992 outputs_walk->rect.h);
1993 xcb_flush(xcb_connection);
1998 * Set the current binding mode
2001 void set_current_mode(struct mode *current) {
2002 I3STRING_FREE(binding.name);
2004 activated_mode = binding.name != NULL;