2 * vim:ts=4:sw=4:expandtab
4 * i3bar - an xcb-based status- and ws-bar for i3
5 * © 2010-2012 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 /* Cached width of the custom separator if one was set */
67 int separator_symbol_width;
69 /* These are only relevant for XKB, which we only need for grabbing modifiers */
73 /* Because the statusline is the same on all outputs, we have
74 * global buffer to render it on */
75 xcb_gcontext_t statusline_ctx;
76 xcb_gcontext_t statusline_clear;
77 xcb_pixmap_t statusline_pm;
78 uint32_t statusline_width;
80 /* Event watchers, to interact with the user */
86 /* The name of current binding mode */
89 /* Indicates whether a new binding mode was recently activated */
90 bool activated_mode = false;
92 /* The parsed colors */
97 uint32_t active_ws_fg;
98 uint32_t active_ws_bg;
99 uint32_t active_ws_border;
100 uint32_t inactive_ws_fg;
101 uint32_t inactive_ws_bg;
102 uint32_t inactive_ws_border;
103 uint32_t urgent_ws_bg;
104 uint32_t urgent_ws_fg;
105 uint32_t urgent_ws_border;
106 uint32_t focus_ws_bg;
107 uint32_t focus_ws_fg;
108 uint32_t focus_ws_border;
110 struct xcb_colors_t colors;
112 /* Horizontal offset between a workspace label and button borders */
113 static const int ws_hoff_px = 4;
115 /* Vertical offset between a workspace label and button borders */
116 static const int ws_voff_px = 3;
118 /* Offset between two workspace buttons */
119 static const int ws_spacing_px = 1;
121 /* Offset between the statusline and 1) workspace buttons on the left
122 * 2) the tray or screen edge on the right */
123 static const int sb_hoff_px = 4;
125 /* Additional offset between the tray and the statusline, if the tray is not empty */
126 static const int tray_loff_px = 2;
128 /* Vertical offset between the bar and a separator */
129 static const int sep_voff_px = 4;
131 /* We define xcb_request_failed as a macro to include the relevant line number */
132 #define xcb_request_failed(cookie, err_msg) _xcb_request_failed(cookie, err_msg, __LINE__)
133 int _xcb_request_failed(xcb_void_cookie_t cookie, char *err_msg, int line) {
134 xcb_generic_error_t *err;
135 if ((err = xcb_request_check(xcb_connection, cookie)) != NULL) {
136 fprintf(stderr, "[%s:%d] ERROR: %s. X Error Code: %d\n", __FILE__, line, err_msg, err->error_code);
137 return err->error_code;
142 uint32_t get_sep_offset(struct status_block *block) {
143 if (!block->no_separator && block->sep_block_width > 0)
144 return block->sep_block_width / 2 + block->sep_block_width % 2;
148 int get_tray_width(struct tc_head *trayclients) {
149 trayclient *trayclient;
151 TAILQ_FOREACH_REVERSE(trayclient, trayclients, tc_head, tailq) {
152 if (!trayclient->mapped)
154 tray_width += font.height + logical_px(2);
157 tray_width += logical_px(tray_loff_px);
162 * Draws a separator for the given block if necessary.
165 static void draw_separator(uint32_t x, struct status_block *block) {
166 uint32_t sep_offset = get_sep_offset(block);
167 if (TAILQ_NEXT(block, blocks) == NULL || sep_offset == 0)
170 uint32_t center_x = x - sep_offset;
171 if (config.separator_symbol == NULL) {
172 /* Draw a classic one pixel, vertical separator. */
173 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_LINE_WIDTH;
174 uint32_t values[] = {colors.sep_fg, colors.bar_bg, logical_px(1)};
175 xcb_change_gc(xcb_connection, statusline_ctx, mask, values);
176 xcb_poly_line(xcb_connection, XCB_COORD_MODE_ORIGIN, statusline_pm, statusline_ctx, 2,
177 (xcb_point_t[]){{center_x, logical_px(sep_voff_px)},
178 {center_x, bar_height - logical_px(sep_voff_px)}});
180 /* Draw a custom separator. */
181 uint32_t separator_x = MAX(x - block->sep_block_width, center_x - separator_symbol_width / 2);
182 set_font_colors(statusline_ctx, colors.sep_fg, colors.bar_bg);
183 draw_text(config.separator_symbol, statusline_pm, statusline_ctx,
184 separator_x, logical_px(ws_voff_px), x - separator_x);
189 * Redraws the statusline to the buffer
192 void refresh_statusline(bool use_short_text) {
193 struct status_block *block;
195 uint32_t old_statusline_width = statusline_width;
196 statusline_width = 0;
198 /* Predict the text width of all blocks (in pixels). */
199 TAILQ_FOREACH(block, &statusline_head, blocks) {
200 /* Try to use the shorter text if necessary and possible. */
201 if (use_short_text && block->short_text != NULL) {
202 I3STRING_FREE(block->full_text);
203 block->full_text = i3string_copy(block->short_text);
206 if (i3string_get_num_bytes(block->full_text) == 0)
209 block->width = predict_text_width(block->full_text);
211 /* Compute offset and append for text aligment in min_width. */
212 if (block->min_width <= block->width) {
216 uint32_t padding_width = block->min_width - block->width;
217 switch (block->align) {
219 block->x_append = padding_width;
222 block->x_offset = padding_width;
225 block->x_offset = padding_width / 2;
226 block->x_append = padding_width / 2 + padding_width % 2;
231 /* If this is not the last block, add some pixels for a separator. */
232 if (TAILQ_NEXT(block, blocks) != NULL)
233 statusline_width += block->sep_block_width;
235 statusline_width += block->width + block->x_offset + block->x_append;
238 /* If the statusline is bigger than our screen we need to make sure that
239 * the pixmap provides enough space, so re-allocate if the width grew */
240 if (statusline_width > root_screen->width_in_pixels &&
241 statusline_width > old_statusline_width)
244 /* Clear the statusline pixmap. */
245 xcb_rectangle_t rect = {0, 0, MAX(root_screen->width_in_pixels, statusline_width), bar_height};
246 xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_clear, 1, &rect);
248 /* Draw the text of each block. */
250 TAILQ_FOREACH(block, &statusline_head, blocks) {
251 if (i3string_get_num_bytes(block->full_text) == 0)
255 /* If this block is urgent, draw it with the defined color and border. */
257 fg_color = colors.urgent_ws_fg;
259 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
261 /* Draw the background */
262 uint32_t bg_color = colors.urgent_ws_bg;
263 uint32_t bg_values[] = {bg_color, bg_color};
264 xcb_change_gc(xcb_connection, statusline_ctx, mask, bg_values);
266 /* The urgent background “overshoots” by 2 px so that the text that
267 * is printed onto it will not be look so cut off. */
268 xcb_rectangle_t bg_rect = {x - logical_px(2), logical_px(1), block->width + logical_px(4), bar_height - logical_px(2)};
269 xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_ctx, 1, &bg_rect);
271 fg_color = (block->color ? get_colorpixel(block->color) : colors.bar_fg);
274 set_font_colors(statusline_ctx, fg_color, colors.bar_bg);
275 draw_text(block->full_text, statusline_pm, statusline_ctx, x + block->x_offset, logical_px(ws_voff_px), block->width);
276 x += block->width + block->sep_block_width + block->x_offset + block->x_append;
278 /* If this is not the last block, draw a separator. */
279 draw_separator(x, block);
284 * Hides all bars (unmaps them)
287 void hide_bars(void) {
288 if ((config.hide_on_modifier == M_DOCK) || (config.hidden_state == S_SHOW && config.hide_on_modifier == M_HIDE)) {
293 SLIST_FOREACH(walk, outputs, slist) {
297 xcb_unmap_window(xcb_connection, walk->bar);
303 * Unhides all bars (maps them)
306 void unhide_bars(void) {
307 if (config.hide_on_modifier != M_HIDE) {
312 xcb_void_cookie_t cookie;
318 SLIST_FOREACH(walk, outputs, slist) {
319 if (walk->bar == XCB_NONE) {
322 mask = XCB_CONFIG_WINDOW_X |
323 XCB_CONFIG_WINDOW_Y |
324 XCB_CONFIG_WINDOW_WIDTH |
325 XCB_CONFIG_WINDOW_HEIGHT |
326 XCB_CONFIG_WINDOW_STACK_MODE;
327 values[0] = walk->rect.x;
328 if (config.position == POS_TOP)
329 values[1] = walk->rect.y;
331 values[1] = walk->rect.y + walk->rect.h - bar_height;
332 values[2] = walk->rect.w;
333 values[3] = bar_height;
334 values[4] = XCB_STACK_MODE_ABOVE;
335 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
336 cookie = xcb_configure_window_checked(xcb_connection,
341 if (xcb_request_failed(cookie, "Could not reconfigure window")) {
344 xcb_map_window(xcb_connection, walk->bar);
349 * Parse the colors into a format that we can use
352 void init_colors(const struct xcb_color_strings_t *new_colors) {
353 #define PARSE_COLOR(name, def) \
355 colors.name = get_colorpixel(new_colors->name ? new_colors->name : def); \
357 PARSE_COLOR(bar_fg, "#FFFFFF");
358 PARSE_COLOR(bar_bg, "#000000");
359 PARSE_COLOR(sep_fg, "#666666");
360 PARSE_COLOR(active_ws_fg, "#FFFFFF");
361 PARSE_COLOR(active_ws_bg, "#333333");
362 PARSE_COLOR(active_ws_border, "#333333");
363 PARSE_COLOR(inactive_ws_fg, "#888888");
364 PARSE_COLOR(inactive_ws_bg, "#222222");
365 PARSE_COLOR(inactive_ws_border, "#333333");
366 PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
367 PARSE_COLOR(urgent_ws_bg, "#900000");
368 PARSE_COLOR(urgent_ws_border, "#2f343a");
369 PARSE_COLOR(focus_ws_fg, "#FFFFFF");
370 PARSE_COLOR(focus_ws_bg, "#285577");
371 PARSE_COLOR(focus_ws_border, "#4c7899");
375 xcb_flush(xcb_connection);
379 * Handle a button press event (i.e. a mouse click on one of our bars).
380 * We determine, whether the click occured on a workspace button or if the scroll-
381 * wheel was used and change the workspace appropriately
384 void handle_button(xcb_button_press_event_t *event) {
385 /* Determine, which bar was clicked */
387 xcb_window_t bar = event->event;
388 SLIST_FOREACH(walk, outputs, slist) {
389 if (walk->bar == bar) {
395 DLOG("Unknown bar clicked!\n");
399 int32_t x = event->event_x >= 0 ? event->event_x : 0;
400 int32_t original_x = x;
402 DLOG("Got button %d\n", event->detail);
404 int workspace_width = 0;
405 i3_ws *cur_ws = NULL, *clicked_ws = NULL, *ws_walk;
407 TAILQ_FOREACH(ws_walk, walk->workspaces, tailq) {
408 int w = 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
409 if (x >= workspace_width && x <= workspace_width + w)
410 clicked_ws = ws_walk;
411 if (ws_walk->visible)
413 workspace_width += w;
414 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
415 workspace_width += logical_px(ws_spacing_px);
418 if (x > workspace_width && child_want_click_events()) {
419 /* If the child asked for click events,
420 * check if a status block has been clicked. */
421 int tray_width = get_tray_width(walk->trayclients);
422 int block_x = 0, last_block_x;
423 int offset = walk->rect.w - statusline_width - tray_width - logical_px(sb_hoff_px);
425 x = original_x - offset;
427 struct status_block *block;
428 int sep_offset_remainder = 0;
430 TAILQ_FOREACH(block, &statusline_head, blocks) {
431 if (i3string_get_num_bytes(block->full_text) == 0)
434 last_block_x = block_x;
435 block_x += block->width + block->x_offset + block->x_append + get_sep_offset(block) + sep_offset_remainder;
437 if (x <= block_x && x >= last_block_x) {
438 send_block_clicked(event->detail, block->name, block->instance, event->root_x, event->root_y);
442 sep_offset_remainder = block->sep_block_width - get_sep_offset(block);
448 if (cur_ws == NULL) {
449 DLOG("No workspace active?\n");
453 switch (event->detail) {
455 /* Mouse wheel up. We select the previous ws, if any.
456 * If there is no more workspace, don’t even send the workspace
457 * command, otherwise (with workspace auto_back_and_forth) we’d end
458 * up on the wrong workspace. */
460 /* If `wheel_up_cmd [COMMAND]` was specified, it should override
461 * the default behavior */
462 if (config.wheel_up_cmd) {
463 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, config.wheel_up_cmd);
467 if (cur_ws == TAILQ_FIRST(walk->workspaces))
470 cur_ws = TAILQ_PREV(cur_ws, ws_head, tailq);
473 /* Mouse wheel down. We select the next ws, if any.
474 * If there is no more workspace, don’t even send the workspace
475 * command, otherwise (with workspace auto_back_and_forth) we’d end
476 * up on the wrong workspace. */
478 /* if `wheel_down_cmd [COMMAND]` was specified, it should override
479 * the default behavior */
480 if (config.wheel_down_cmd) {
481 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, config.wheel_down_cmd);
485 if (cur_ws == TAILQ_LAST(walk->workspaces, ws_head))
488 cur_ws = TAILQ_NEXT(cur_ws, tailq);
493 /* if no workspace was clicked, focus our currently visible
494 * workspace if it is not already focused */
495 if (cur_ws == NULL) {
496 TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
497 if (cur_ws->visible && !cur_ws->focused)
502 /* if there is nothing to focus, we are done */
511 /* To properly handle workspace names with double quotes in them, we need
512 * to escape the double quotes. Unfortunately, that’s rather ugly in C: We
513 * first count the number of double quotes, then we allocate a large enough
514 * buffer, then we copy character by character. */
517 const char *utf8_name = cur_ws->canonical_name;
518 for (const char *walk = utf8_name; *walk != '\0'; walk++) {
519 if (*walk == '"' || *walk == '\\')
521 /* While we’re looping through the name anyway, we can save one
526 const size_t len = namelen + strlen("workspace \"\"") + 1;
527 char *buffer = scalloc(len + num_quotes);
528 strncpy(buffer, "workspace \"", strlen("workspace \""));
529 size_t inpos, outpos;
530 for (inpos = 0, outpos = strlen("workspace \"");
533 if (utf8_name[inpos] == '"' || utf8_name[inpos] == '\\') {
534 buffer[outpos] = '\\';
537 buffer[outpos] = utf8_name[inpos];
539 buffer[outpos] = '"';
540 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, buffer);
545 * Handle visibility notifications: when none of the bars are visible, e.g.
546 * if windows are in fullscreen on each output, suspend the child process.
549 static void handle_visibility_notify(xcb_visibility_notify_event_t *event) {
550 bool visible = (event->state != XCB_VISIBILITY_FULLY_OBSCURED);
554 SLIST_FOREACH(output, outputs, slist) {
555 if (!output->active) {
558 if (output->bar == event->window) {
559 if (output->visible == visible) {
562 output->visible = visible;
564 num_visible += output->visible;
567 if (num_visible == 0) {
569 } else if (num_visible == visible) {
570 /* Wake the child only when transitioning from 0 to 1 visible bar.
571 * We cannot transition from 0 to 2 or more visible bars at once since
572 * visibility events are delivered to each window separately */
578 * Adjusts the size of the tray window and alignment of the tray clients by
579 * configuring their respective x coordinates. To be called when mapping or
580 * unmapping a tray client window.
583 static void configure_trayclients(void) {
584 trayclient *trayclient;
586 SLIST_FOREACH(output, outputs, slist) {
591 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
592 if (!trayclient->mapped)
596 DLOG("Configuring tray window %08x to x=%d\n",
597 trayclient->win, output->rect.w - (clients * (font.height + logical_px(2))));
598 uint32_t x = output->rect.w - (clients * (font.height + logical_px(2)));
599 xcb_configure_window(xcb_connection,
608 * Handles ClientMessages (messages sent from another client directly to us).
610 * At the moment, only the tray window will receive client messages. All
611 * supported client messages currently are _NET_SYSTEM_TRAY_OPCODE.
614 static void handle_client_message(xcb_client_message_event_t *event) {
615 if (event->type == atoms[_NET_SYSTEM_TRAY_OPCODE] &&
616 event->format == 32) {
617 DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
618 /* event->data.data32[0] is the timestamp */
619 uint32_t op = event->data.data32[1];
622 if (op == SYSTEM_TRAY_REQUEST_DOCK) {
623 xcb_window_t client = event->data.data32[2];
625 /* Listen for PropertyNotify events to get the most recent value of
626 * the XEMBED_MAPPED atom, also listen for UnmapNotify events */
627 mask = XCB_CW_EVENT_MASK;
628 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
629 XCB_EVENT_MASK_STRUCTURE_NOTIFY;
630 xcb_change_window_attributes(xcb_connection,
635 /* Request the _XEMBED_INFO property. The XEMBED specification
636 * (which is referred by the tray specification) says this *has* to
637 * be set, but VLC does not set it… */
640 xcb_get_property_cookie_t xembedc;
641 xcb_generic_error_t *error;
642 xembedc = xcb_get_property(xcb_connection,
646 XCB_GET_PROPERTY_TYPE_ANY,
650 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
654 ELOG("Error getting _XEMBED_INFO property: error_code %d\n",
659 if (xembedr != NULL && xembedr->length != 0) {
660 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
661 uint32_t *xembed = xcb_get_property_value(xembedr);
662 DLOG("xembed version = %d\n", xembed[0]);
663 DLOG("xembed flags = %d\n", xembed[1]);
664 map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
665 xe_version = xembed[0];
670 ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
673 DLOG("X window %08x requested docking\n", client);
674 i3_output *walk, *output = NULL;
675 SLIST_FOREACH(walk, outputs, slist) {
678 if (config.tray_output) {
679 if ((strcasecmp(walk->name, config.tray_output) != 0) &&
680 (!walk->primary || strcasecmp("primary", config.tray_output) != 0))
684 DLOG("using output %s\n", walk->name);
688 /* In case of tray_output == primary and there is no primary output
689 * configured, we fall back to the first available output. */
690 if (output == NULL &&
691 config.tray_output &&
692 strcasecmp("primary", config.tray_output) == 0) {
693 SLIST_FOREACH(walk, outputs, slist) {
696 DLOG("Falling back to output %s because no primary output is configured\n", walk->name);
701 if (output == NULL) {
702 ELOG("No output found\n");
705 xcb_reparent_window(xcb_connection,
708 output->rect.w - font.height - 2,
710 /* We reconfigure the window to use a reasonable size. The systray
711 * specification explicitly says:
712 * Tray icons may be assigned any size by the system tray, and
713 * should do their best to cope with any size effectively
715 mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
716 values[0] = font.height;
717 values[1] = font.height;
718 xcb_configure_window(xcb_connection,
723 /* send the XEMBED_EMBEDDED_NOTIFY message */
724 void *event = scalloc(32);
725 xcb_client_message_event_t *ev = event;
726 ev->response_type = XCB_CLIENT_MESSAGE;
728 ev->type = atoms[_XEMBED];
730 ev->data.data32[0] = XCB_CURRENT_TIME;
731 ev->data.data32[1] = atoms[XEMBED_EMBEDDED_NOTIFY];
732 ev->data.data32[2] = output->bar;
733 ev->data.data32[3] = xe_version;
734 xcb_send_event(xcb_connection,
737 XCB_EVENT_MASK_NO_EVENT,
741 /* Put the client inside the save set. Upon termination (whether
742 * killed or normal exit does not matter) of i3bar, these clients
743 * will be correctly reparented to their most closest living
744 * ancestor. Without this, tray icons might die when i3bar
746 xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
748 trayclient *tc = smalloc(sizeof(trayclient));
750 tc->xe_version = xe_version;
752 TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
755 DLOG("Mapping dock client\n");
756 xcb_map_window(xcb_connection, client);
758 DLOG("Not mapping dock client yet\n");
760 /* Trigger an update to copy the statusline text to the appropriate
762 configure_trayclients();
769 * Handles DestroyNotify events by removing the tray client from the data
770 * structure. According to the XEmbed protocol, this is one way for a tray
771 * client to finish the protocol. After this event is received, there is no
772 * further interaction with the tray client.
774 * See: http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
777 static void handle_destroy_notify(xcb_destroy_notify_event_t *event) {
778 DLOG("DestroyNotify for window = %08x, event = %08x\n", event->window, event->event);
781 SLIST_FOREACH(walk, outputs, slist) {
784 DLOG("checking output %s\n", walk->name);
785 trayclient *trayclient;
786 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
787 if (trayclient->win != event->window)
790 DLOG("Removing tray client with window ID %08x\n", event->window);
791 TAILQ_REMOVE(walk->trayclients, trayclient, tailq);
793 /* Trigger an update, we now have more space for the statusline */
794 configure_trayclients();
802 * Handles MapNotify events. These events happen when a tray client shows its
803 * window. We respond by realigning the tray clients.
806 static void handle_map_notify(xcb_map_notify_event_t *event) {
807 DLOG("MapNotify for window = %08x, event = %08x\n", event->window, event->event);
810 SLIST_FOREACH(walk, outputs, slist) {
813 DLOG("checking output %s\n", walk->name);
814 trayclient *trayclient;
815 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
816 if (trayclient->win != event->window)
819 DLOG("Tray client mapped (window ID %08x). Adjusting tray.\n", event->window);
820 trayclient->mapped = true;
822 /* Trigger an update, we now have more space for the statusline */
823 configure_trayclients();
830 * Handles UnmapNotify events. These events happen when a tray client hides its
831 * window. We respond by realigning the tray clients.
834 static void handle_unmap_notify(xcb_unmap_notify_event_t *event) {
835 DLOG("UnmapNotify for window = %08x, event = %08x\n", event->window, event->event);
838 SLIST_FOREACH(walk, outputs, slist) {
841 DLOG("checking output %s\n", walk->name);
842 trayclient *trayclient;
843 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
844 if (trayclient->win != event->window)
847 DLOG("Tray client unmapped (window ID %08x). Adjusting tray.\n", event->window);
848 trayclient->mapped = false;
850 /* Trigger an update, we now have more space for the statusline */
851 configure_trayclients();
859 * Handle PropertyNotify messages. Currently only the _XEMBED_INFO property is
860 * handled, which tells us whether a dock client should be mapped or unmapped.
863 static void handle_property_notify(xcb_property_notify_event_t *event) {
864 DLOG("PropertyNotify\n");
865 if (event->atom == atoms[_XEMBED_INFO] &&
866 event->state == XCB_PROPERTY_NEW_VALUE) {
867 DLOG("xembed_info updated\n");
868 trayclient *trayclient = NULL, *walk;
870 SLIST_FOREACH(o_walk, outputs, slist) {
874 TAILQ_FOREACH(walk, o_walk->trayclients, tailq) {
875 if (walk->win != event->window)
885 ELOG("PropertyNotify received for unknown window %08x\n",
889 xcb_get_property_cookie_t xembedc;
890 xembedc = xcb_get_property_unchecked(xcb_connection,
894 XCB_GET_PROPERTY_TYPE_ANY,
898 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
901 if (xembedr == NULL || xembedr->length == 0) {
902 DLOG("xembed_info unset\n");
906 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
907 uint32_t *xembed = xcb_get_property_value(xembedr);
908 DLOG("xembed version = %d\n", xembed[0]);
909 DLOG("xembed flags = %d\n", xembed[1]);
910 bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
911 DLOG("map state now %d\n", map_it);
912 if (trayclient->mapped && !map_it) {
913 /* need to unmap the window */
914 xcb_unmap_window(xcb_connection, trayclient->win);
915 } else if (!trayclient->mapped && map_it) {
916 /* need to map the window */
917 xcb_map_window(xcb_connection, trayclient->win);
924 * Handle ConfigureRequests by denying them and sending the client a
925 * ConfigureNotify with its actual size.
928 static void handle_configure_request(xcb_configure_request_event_t *event) {
929 DLOG("ConfigureRequest for window = %08x\n", event->window);
931 trayclient *trayclient;
933 SLIST_FOREACH(output, outputs, slist) {
938 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
939 if (!trayclient->mapped)
943 if (trayclient->win != event->window)
946 xcb_rectangle_t rect;
947 rect.x = output->rect.w - (clients * (font.height + 2));
949 rect.width = font.height;
950 rect.height = font.height;
952 DLOG("This is a tray window. x = %d\n", rect.x);
953 fake_configure_notify(xcb_connection, rect, event->window, 0);
958 DLOG("WARNING: Could not find corresponding tray window.\n");
962 * This function is called immediately before the main loop locks. We flush xcb
963 * then (and only then)
966 void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
967 xcb_flush(xcb_connection);
971 * This function is called immediately after the main loop locks, so when one
972 * of the watchers registered an event.
973 * We check whether an X-Event arrived and handle it.
976 void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
977 xcb_generic_event_t *event;
979 if (xcb_connection_has_error(xcb_connection)) {
980 ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
984 while ((event = xcb_poll_for_event(xcb_connection)) != NULL) {
985 int type = (event->response_type & ~0x80);
987 if (type == xkb_base && xkb_base > -1) {
988 DLOG("received an xkb event\n");
990 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
991 if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
992 int modstate = state->mods & config.modifier;
994 #define DLOGMOD(modmask, status) \
998 DLOG("ShiftMask got " #status "!\n"); \
1001 DLOG("ControlMask got " #status "!\n"); \
1004 DLOG("Mod1Mask got " #status "!\n"); \
1007 DLOG("Mod2Mask got " #status "!\n"); \
1010 DLOG("Mod3Mask got " #status "!\n"); \
1013 DLOG("Mod4Mask got " #status "!\n"); \
1016 DLOG("Mod5Mask got " #status "!\n"); \
1021 if (modstate != mod_pressed) {
1022 if (modstate == 0) {
1023 DLOGMOD(config.modifier, released);
1024 if (!activated_mode)
1027 DLOGMOD(config.modifier, pressed);
1028 activated_mode = false;
1031 mod_pressed = modstate;
1041 case XCB_VISIBILITY_NOTIFY:
1042 /* Visibility change: a bar is [un]obscured by other window */
1043 handle_visibility_notify((xcb_visibility_notify_event_t *)event);
1046 /* Expose-events happen, when the window needs to be redrawn */
1049 case XCB_BUTTON_PRESS:
1050 /* Button press events are mouse buttons clicked on one of our bars */
1051 handle_button((xcb_button_press_event_t *)event);
1053 case XCB_CLIENT_MESSAGE:
1054 /* Client messages are used for client-to-client communication, for
1055 * example system tray widgets talk to us directly via client messages. */
1056 handle_client_message((xcb_client_message_event_t *)event);
1058 case XCB_DESTROY_NOTIFY:
1059 /* DestroyNotify signifies the end of the XEmbed protocol */
1060 handle_destroy_notify((xcb_destroy_notify_event_t *)event);
1062 case XCB_UNMAP_NOTIFY:
1063 /* UnmapNotify is received when a tray client hides its window. */
1064 handle_unmap_notify((xcb_unmap_notify_event_t *)event);
1066 case XCB_MAP_NOTIFY:
1067 handle_map_notify((xcb_map_notify_event_t *)event);
1069 case XCB_PROPERTY_NOTIFY:
1070 /* PropertyNotify */
1071 handle_property_notify((xcb_property_notify_event_t *)event);
1073 case XCB_CONFIGURE_REQUEST:
1074 /* ConfigureRequest, sent by a tray child */
1075 handle_configure_request((xcb_configure_request_event_t *)event);
1083 * Dummy callback. We only need this, so that the prepare and check watchers
1087 void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
1091 * Early initialization of the connection to X11: Everything which does not
1092 * depend on 'config'.
1095 char *init_xcb_early() {
1096 /* FIXME: xcb_connect leaks memory */
1097 xcb_connection = xcb_connect(NULL, &screen);
1098 if (xcb_connection_has_error(xcb_connection)) {
1099 ELOG("Cannot open display\n");
1102 conn = xcb_connection;
1103 DLOG("Connected to xcb\n");
1105 /* We have to request the atoms we need */
1106 #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
1107 #include "xcb_atoms.def"
1109 root_screen = xcb_aux_get_screen(xcb_connection, screen);
1110 xcb_root = root_screen->root;
1112 /* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
1113 * this way, we can choose to crop it */
1114 uint32_t mask = XCB_GC_FOREGROUND;
1115 uint32_t vals[] = {colors.bar_bg, colors.bar_bg};
1117 statusline_clear = xcb_generate_id(xcb_connection);
1118 xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1124 statusline_ctx = xcb_generate_id(xcb_connection);
1125 xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1131 statusline_pm = xcb_generate_id(xcb_connection);
1132 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1133 root_screen->root_depth,
1136 root_screen->width_in_pixels,
1137 root_screen->height_in_pixels);
1139 /* The various watchers to communicate with xcb */
1140 xcb_io = smalloc(sizeof(ev_io));
1141 xcb_prep = smalloc(sizeof(ev_prepare));
1142 xcb_chk = smalloc(sizeof(ev_check));
1144 ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
1145 ev_prepare_init(xcb_prep, &xcb_prep_cb);
1146 ev_check_init(xcb_chk, &xcb_chk_cb);
1148 ev_io_start(main_loop, xcb_io);
1149 ev_prepare_start(main_loop, xcb_prep);
1150 ev_check_start(main_loop, xcb_chk);
1152 /* Now we get the atoms and save them in a nice data structure */
1155 char *path = root_atom_contents("I3_SOCKET_PATH", xcb_connection, screen);
1157 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer") ||
1158 xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline buffer clearcontext") ||
1159 xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline buffer context")) {
1167 * Register for xkb keyevents. To grab modifiers without blocking other applications from receiving key events
1168 * involving that modifier, we sadly have to use xkb which is not yet fully supported
1172 void register_xkb_keyevents() {
1173 const xcb_query_extension_reply_t *extreply;
1174 extreply = xcb_get_extension_data(conn, &xcb_xkb_id);
1175 if (!extreply->present) {
1176 ELOG("xkb is not present on this server\n");
1179 DLOG("initializing xcb-xkb\n");
1180 xcb_xkb_use_extension(conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION);
1181 xcb_xkb_select_events(conn,
1182 XCB_XKB_ID_USE_CORE_KBD,
1183 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1185 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1189 xkb_base = extreply->first_event;
1193 * Deregister from xkb keyevents.
1196 void deregister_xkb_keyevents() {
1197 xcb_xkb_select_events(conn,
1198 XCB_XKB_ID_USE_CORE_KBD,
1208 * Initialization which depends on 'config' being usable. Called after the
1209 * configuration has arrived.
1212 void init_xcb_late(char *fontname) {
1213 if (fontname == NULL)
1214 fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
1217 font = load_font(fontname, true);
1219 DLOG("Calculated font height: %d\n", font.height);
1220 bar_height = font.height + 2 * logical_px(ws_voff_px);
1222 if (config.separator_symbol)
1223 separator_symbol_width = predict_text_width(config.separator_symbol);
1225 xcb_flush(xcb_connection);
1227 if (config.hide_on_modifier == M_HIDE)
1228 register_xkb_keyevents();
1232 * Inform clients waiting for a new _NET_SYSTEM_TRAY that we took the
1236 static void send_tray_clientmessage(void) {
1237 uint8_t buffer[32] = {0};
1238 xcb_client_message_event_t *ev = (xcb_client_message_event_t *)buffer;
1240 ev->response_type = XCB_CLIENT_MESSAGE;
1241 ev->window = xcb_root;
1242 ev->type = atoms[MANAGER];
1244 ev->data.data32[0] = XCB_CURRENT_TIME;
1245 ev->data.data32[1] = tray_reply->atom;
1246 ev->data.data32[2] = selwin;
1248 xcb_send_event(xcb_connection,
1256 * Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
1257 * for the X11 display we are running on, then acquiring the selection for this
1258 * atom. Afterwards, tray clients will send ClientMessages to our window.
1261 void init_tray(void) {
1262 DLOG("Initializing system tray functionality\n");
1263 /* request the tray manager atom for the X11 display we are running on */
1264 char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
1265 snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
1266 xcb_intern_atom_cookie_t tray_cookie;
1267 if (tray_reply == NULL)
1268 tray_cookie = xcb_intern_atom(xcb_connection, 0, strlen(atomname), atomname);
1270 /* tray support: we need a window to own the selection */
1271 selwin = xcb_generate_id(xcb_connection);
1272 uint32_t selmask = XCB_CW_OVERRIDE_REDIRECT;
1273 uint32_t selval[] = {1};
1274 xcb_create_window(xcb_connection,
1275 root_screen->root_depth,
1281 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1282 root_screen->root_visual,
1286 uint32_t orientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
1288 xcb_change_property(xcb_connection,
1289 XCB_PROP_MODE_REPLACE,
1291 atoms[_NET_SYSTEM_TRAY_ORIENTATION],
1299 if (tray_reply == NULL) {
1300 if (!(tray_reply = xcb_intern_atom_reply(xcb_connection, tray_cookie, NULL))) {
1301 ELOG("Could not get atom %s\n", atomname);
1306 xcb_set_selection_owner(xcb_connection,
1311 /* Verify that we have the selection */
1312 xcb_get_selection_owner_cookie_t selcookie;
1313 xcb_get_selection_owner_reply_t *selreply;
1315 selcookie = xcb_get_selection_owner(xcb_connection, tray_reply->atom);
1316 if (!(selreply = xcb_get_selection_owner_reply(xcb_connection, selcookie, NULL))) {
1317 ELOG("Could not get selection owner for %s\n", atomname);
1321 if (selreply->owner != selwin) {
1322 ELOG("Could not set the %s selection. "
1323 "Maybe another tray is already running?\n",
1325 /* NOTE that this error is not fatal. We just can’t provide tray
1331 send_tray_clientmessage();
1335 * We need to set the _NET_SYSTEM_TRAY_COLORS atom on the tray selection window
1336 * to make GTK+ 3 applets with symbolic icons visible. If the colors are unset,
1337 * they assume a light background.
1338 * See also https://bugzilla.gnome.org/show_bug.cgi?id=679591
1341 void init_tray_colors(void) {
1342 /* Convert colors.bar_fg (#rrggbb) to 16-bit RGB */
1343 const char *bar_fg = (config.colors.bar_fg ? config.colors.bar_fg : "#FFFFFF");
1345 DLOG("Setting bar_fg = %s as _NET_SYSTEM_TRAY_COLORS\n", bar_fg);
1347 char strgroups[3][3] = {{bar_fg[1], bar_fg[2], '\0'},
1348 {bar_fg[3], bar_fg[4], '\0'},
1349 {bar_fg[5], bar_fg[6], '\0'}};
1350 const uint8_t r = strtol(strgroups[0], NULL, 16);
1351 const uint8_t g = strtol(strgroups[1], NULL, 16);
1352 const uint8_t b = strtol(strgroups[2], NULL, 16);
1354 const uint16_t r16 = ((uint16_t)r << 8) | r;
1355 const uint16_t g16 = ((uint16_t)g << 8) | g;
1356 const uint16_t b16 = ((uint16_t)b << 8) | b;
1358 const uint32_t tray_colors[12] = {
1359 r16, g16, b16, /* foreground color */
1360 r16, g16, b16, /* error color */
1361 r16, g16, b16, /* warning color */
1362 r16, g16, b16, /* success color */
1365 xcb_change_property(xcb_connection,
1366 XCB_PROP_MODE_REPLACE,
1368 atoms[_NET_SYSTEM_TRAY_COLORS],
1376 * Cleanup the xcb stuff.
1377 * Called once, before the program terminates.
1380 void clean_xcb(void) {
1383 SLIST_FOREACH(o_walk, outputs, slist) {
1384 destroy_window(o_walk);
1385 FREE(o_walk->trayclients);
1386 FREE(o_walk->workspaces);
1389 FREE_SLIST(outputs, i3_output);
1392 xcb_flush(xcb_connection);
1393 xcb_aux_sync(xcb_connection);
1394 xcb_disconnect(xcb_connection);
1396 ev_check_stop(main_loop, xcb_chk);
1397 ev_prepare_stop(main_loop, xcb_prep);
1398 ev_io_stop(main_loop, xcb_io);
1406 * Get the earlier requested atoms and save them in the prepared data structure
1409 void get_atoms(void) {
1410 xcb_intern_atom_reply_t *reply;
1411 #define ATOM_DO(name) \
1412 reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
1413 if (reply == NULL) { \
1414 ELOG("Could not get atom %s\n", #name); \
1415 exit(EXIT_FAILURE); \
1417 atoms[name] = reply->atom; \
1420 #include "xcb_atoms.def"
1421 DLOG("Got atoms\n");
1425 * Reparents all tray clients of the specified output to the root window. This
1426 * is either used when shutting down, when an output appears (xrandr --output
1427 * VGA1 --off) or when the primary output changes.
1429 * Applications using the tray will start the protocol from the beginning again
1433 void kick_tray_clients(i3_output *output) {
1434 if (TAILQ_EMPTY(output->trayclients))
1437 trayclient *trayclient;
1438 while (!TAILQ_EMPTY(output->trayclients)) {
1439 trayclient = TAILQ_FIRST(output->trayclients);
1440 /* Unmap, then reparent (to root) the tray client windows */
1441 xcb_unmap_window(xcb_connection, trayclient->win);
1442 xcb_reparent_window(xcb_connection,
1448 /* We remove the trayclient right here. We might receive an UnmapNotify
1449 * event afterwards, but better safe than sorry. */
1450 TAILQ_REMOVE(output->trayclients, trayclient, tailq);
1453 /* Fake a DestroyNotify so that Qt re-adds tray icons.
1454 * We cannot actually destroy the window because then Qt will not restore
1455 * its event mask on the new window. */
1456 uint8_t buffer[32] = {0};
1457 xcb_destroy_notify_event_t *event = (xcb_destroy_notify_event_t *)buffer;
1459 event->response_type = XCB_DESTROY_NOTIFY;
1460 event->event = selwin;
1461 event->window = selwin;
1463 xcb_send_event(conn, false, selwin, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *)event);
1465 send_tray_clientmessage();
1469 * Destroy the bar of the specified output
1472 void destroy_window(i3_output *output) {
1473 if (output == NULL) {
1476 if (output->bar == XCB_NONE) {
1480 kick_tray_clients(output);
1481 xcb_destroy_window(xcb_connection, output->bar);
1482 output->bar = XCB_NONE;
1486 * Reallocate the statusline buffer
1489 void realloc_sl_buffer(void) {
1490 DLOG("Re-allocating statusline buffer, statusline_width = %d, root_screen->width_in_pixels = %d\n",
1491 statusline_width, root_screen->width_in_pixels);
1492 xcb_free_pixmap(xcb_connection, statusline_pm);
1493 statusline_pm = xcb_generate_id(xcb_connection);
1494 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1495 root_screen->root_depth,
1498 MAX(root_screen->width_in_pixels, statusline_width),
1501 uint32_t mask = XCB_GC_FOREGROUND;
1502 uint32_t vals[2] = {colors.bar_bg, colors.bar_bg};
1503 xcb_free_gc(xcb_connection, statusline_clear);
1504 statusline_clear = xcb_generate_id(xcb_connection);
1505 xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1511 mask |= XCB_GC_BACKGROUND;
1512 vals[0] = colors.bar_fg;
1513 xcb_free_gc(xcb_connection, statusline_ctx);
1514 statusline_ctx = xcb_generate_id(xcb_connection);
1515 xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1521 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer") ||
1522 xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline buffer clearcontext") ||
1523 xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline buffer context")) {
1528 /* Strut partial tells i3 where to reserve space for i3bar. This is determined
1529 * by the `position` bar config directive. */
1530 xcb_void_cookie_t config_strut_partial(i3_output *output) {
1531 /* A local struct to save the strut_partial property */
1537 uint32_t left_start_y;
1538 uint32_t left_end_y;
1539 uint32_t right_start_y;
1540 uint32_t right_end_y;
1541 uint32_t top_start_x;
1543 uint32_t bottom_start_x;
1544 uint32_t bottom_end_x;
1545 } __attribute__((__packed__)) strut_partial;
1546 memset(&strut_partial, 0, sizeof(strut_partial));
1548 switch (config.position) {
1552 strut_partial.top = bar_height;
1553 strut_partial.top_start_x = output->rect.x;
1554 strut_partial.top_end_x = output->rect.x + output->rect.w;
1557 strut_partial.bottom = bar_height;
1558 strut_partial.bottom_start_x = output->rect.x;
1559 strut_partial.bottom_end_x = output->rect.x + output->rect.w;
1562 return xcb_change_property(xcb_connection,
1563 XCB_PROP_MODE_REPLACE,
1565 atoms[_NET_WM_STRUT_PARTIAL],
1573 * Reconfigure all bars and create new bars for recently activated outputs
1576 void reconfig_windows(bool redraw_bars) {
1579 static bool tray_configured = false;
1582 SLIST_FOREACH(walk, outputs, slist) {
1583 if (!walk->active) {
1584 /* If an output is not active, we destroy its bar */
1585 /* FIXME: Maybe we rather want to unmap? */
1586 DLOG("Destroying window for output %s\n", walk->name);
1587 destroy_window(walk);
1590 if (walk->bar == XCB_NONE) {
1591 DLOG("Creating window for output %s\n", walk->name);
1593 walk->bar = xcb_generate_id(xcb_connection);
1594 walk->buffer = xcb_generate_id(xcb_connection);
1595 mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
1596 /* Black background */
1597 values[0] = colors.bar_bg;
1598 /* If hide_on_modifier is set to hide or invisible mode, i3 is not supposed to manage our bar windows */
1599 values[1] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1600 /* We enable the following EventMask fields:
1601 * EXPOSURE, to get expose events (we have to re-draw then)
1602 * SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
1603 * child windows use ConfigureWindow
1604 * BUTTON_PRESS, to handle clicks on the workspace buttons
1606 values[2] = XCB_EVENT_MASK_EXPOSURE |
1607 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
1608 XCB_EVENT_MASK_BUTTON_PRESS;
1609 if (config.hide_on_modifier == M_DOCK) {
1610 /* If the bar is normally visible, catch visibility change events to suspend
1611 * the status process when the bar is obscured by full-screened windows. */
1612 values[2] |= XCB_EVENT_MASK_VISIBILITY_CHANGE;
1613 walk->visible = true;
1615 xcb_void_cookie_t win_cookie = xcb_create_window_checked(xcb_connection,
1616 root_screen->root_depth,
1619 walk->rect.x, walk->rect.y + walk->rect.h - bar_height,
1620 walk->rect.w, bar_height,
1622 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1623 root_screen->root_visual,
1627 /* The double-buffer we use to render stuff off-screen */
1628 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1629 root_screen->root_depth,
1635 /* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
1636 xcb_void_cookie_t class_cookie;
1637 class_cookie = xcb_change_property(xcb_connection,
1638 XCB_PROP_MODE_REPLACE,
1643 (strlen("i3bar") + 1) * 2,
1647 if (asprintf(&name, "i3bar for output %s", walk->name) == -1)
1648 err(EXIT_FAILURE, "asprintf()");
1649 xcb_void_cookie_t name_cookie;
1650 name_cookie = xcb_change_property(xcb_connection,
1651 XCB_PROP_MODE_REPLACE,
1660 /* We want dock windows (for now). When override_redirect is set, i3 is ignoring
1662 xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
1663 XCB_PROP_MODE_REPLACE,
1665 atoms[_NET_WM_WINDOW_TYPE],
1669 (unsigned char *)&atoms[_NET_WM_WINDOW_TYPE_DOCK]);
1671 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1673 /* We also want a graphics context for the bars (it defines the properties
1674 * with which we draw to them) */
1675 walk->bargc = xcb_generate_id(xcb_connection);
1676 xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(xcb_connection,
1682 /* We finally map the bar (display it on screen), unless the modifier-switch is on */
1683 xcb_void_cookie_t map_cookie;
1684 if (config.hide_on_modifier == M_DOCK) {
1685 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
1688 if (xcb_request_failed(win_cookie, "Could not create window") ||
1689 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1690 xcb_request_failed(dock_cookie, "Could not set dock mode") ||
1691 xcb_request_failed(class_cookie, "Could not set WM_CLASS") ||
1692 xcb_request_failed(name_cookie, "Could not set WM_NAME") ||
1693 xcb_request_failed(strut_cookie, "Could not set strut") ||
1694 xcb_request_failed(gc_cookie, "Could not create graphical context") ||
1695 ((config.hide_on_modifier == M_DOCK) && xcb_request_failed(map_cookie, "Could not map window"))) {
1699 const char *tray_output = (config.tray_output ? config.tray_output : SLIST_FIRST(outputs)->name);
1700 if (!tray_configured && strcasecmp(tray_output, "none") != 0) {
1701 /* Configuration sanity check: ensure this i3bar instance handles the output on
1702 * which the tray should appear (e.g. don’t initialize a tray if tray_output ==
1703 * VGA-1 but output == [HDMI-1]).
1706 SLIST_FOREACH(output, outputs, slist) {
1707 if (strcasecmp(output->name, tray_output) == 0 ||
1708 (strcasecmp(tray_output, "primary") == 0 && output->primary)) {
1713 tray_configured = true;
1716 /* We already have a bar, so we just reconfigure it */
1717 mask = XCB_CONFIG_WINDOW_X |
1718 XCB_CONFIG_WINDOW_Y |
1719 XCB_CONFIG_WINDOW_WIDTH |
1720 XCB_CONFIG_WINDOW_HEIGHT |
1721 XCB_CONFIG_WINDOW_STACK_MODE;
1722 values[0] = walk->rect.x;
1723 if (config.position == POS_TOP)
1724 values[1] = walk->rect.y;
1726 values[1] = walk->rect.y + walk->rect.h - bar_height;
1727 values[2] = walk->rect.w;
1728 values[3] = bar_height;
1729 values[4] = XCB_STACK_MODE_ABOVE;
1731 DLOG("Reconfiguring strut partial property for output %s\n", walk->name);
1732 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1734 DLOG("Destroying buffer for output %s\n", walk->name);
1735 xcb_free_pixmap(xcb_connection, walk->buffer);
1737 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
1738 xcb_void_cookie_t cfg_cookie = xcb_configure_window_checked(xcb_connection,
1743 mask = XCB_CW_OVERRIDE_REDIRECT;
1744 values[0] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1745 DLOG("Changing window attribute override_redirect for output %s to %d\n", walk->name, values[0]);
1746 xcb_void_cookie_t chg_cookie = xcb_change_window_attributes(xcb_connection,
1751 DLOG("Recreating buffer for output %s\n", walk->name);
1752 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1753 root_screen->root_depth,
1759 xcb_void_cookie_t map_cookie, umap_cookie;
1761 /* Unmap the window, and draw it again when in dock mode */
1762 umap_cookie = xcb_unmap_window_checked(xcb_connection, walk->bar);
1763 if (config.hide_on_modifier == M_DOCK) {
1765 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
1770 if (config.hide_on_modifier == M_HIDE) {
1771 /* Switching to hide mode, register for keyevents */
1772 register_xkb_keyevents();
1774 /* Switching to dock/invisible mode, deregister from keyevents */
1775 deregister_xkb_keyevents();
1779 if (xcb_request_failed(cfg_cookie, "Could not reconfigure window") ||
1780 xcb_request_failed(chg_cookie, "Could not change window") ||
1781 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1782 xcb_request_failed(strut_cookie, "Could not set strut") ||
1783 (redraw_bars && (xcb_request_failed(umap_cookie, "Could not unmap window") ||
1784 (config.hide_on_modifier == M_DOCK && xcb_request_failed(map_cookie, "Could not map window"))))) {
1792 * Render the bars, with buttons and statusline
1795 void draw_bars(bool unhide) {
1796 DLOG("Drawing bars...\n");
1797 int workspace_width = 0;
1799 refresh_statusline(false);
1801 i3_output *outputs_walk;
1802 SLIST_FOREACH(outputs_walk, outputs, slist) {
1803 if (!outputs_walk->active) {
1804 DLOG("Output %s inactive, skipping...\n", outputs_walk->name);
1807 if (outputs_walk->bar == XCB_NONE) {
1808 /* Oh shit, an active output without an own bar. Create it now! */
1809 reconfig_windows(false);
1811 /* First things first: clear the backbuffer */
1812 uint32_t color = colors.bar_bg;
1813 xcb_change_gc(xcb_connection,
1814 outputs_walk->bargc,
1817 xcb_rectangle_t rect = {0, 0, outputs_walk->rect.w, bar_height};
1818 xcb_poly_fill_rectangle(xcb_connection,
1819 outputs_walk->buffer,
1820 outputs_walk->bargc,
1824 if (!config.disable_ws) {
1826 TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
1827 DLOG("Drawing button for WS %s at x = %d, len = %d\n",
1828 i3string_as_utf8(ws_walk->name), workspace_width, ws_walk->name_width);
1829 uint32_t fg_color = colors.inactive_ws_fg;
1830 uint32_t bg_color = colors.inactive_ws_bg;
1831 uint32_t border_color = colors.inactive_ws_border;
1832 if (ws_walk->visible) {
1833 if (!ws_walk->focused) {
1834 fg_color = colors.active_ws_fg;
1835 bg_color = colors.active_ws_bg;
1836 border_color = colors.active_ws_border;
1838 fg_color = colors.focus_ws_fg;
1839 bg_color = colors.focus_ws_bg;
1840 border_color = colors.focus_ws_border;
1843 if (ws_walk->urgent) {
1844 DLOG("WS %s is urgent!\n", i3string_as_utf8(ws_walk->name));
1845 fg_color = colors.urgent_ws_fg;
1846 bg_color = colors.urgent_ws_bg;
1847 border_color = colors.urgent_ws_border;
1850 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
1851 uint32_t vals_border[] = {border_color, border_color};
1852 xcb_change_gc(xcb_connection,
1853 outputs_walk->bargc,
1856 xcb_rectangle_t rect_border = {workspace_width,
1858 ws_walk->name_width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1859 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1)};
1860 xcb_poly_fill_rectangle(xcb_connection,
1861 outputs_walk->buffer,
1862 outputs_walk->bargc,
1865 uint32_t vals[] = {bg_color, bg_color};
1866 xcb_change_gc(xcb_connection,
1867 outputs_walk->bargc,
1870 xcb_rectangle_t rect = {workspace_width + logical_px(1),
1872 ws_walk->name_width + 2 * logical_px(ws_hoff_px),
1873 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1)};
1874 xcb_poly_fill_rectangle(xcb_connection,
1875 outputs_walk->buffer,
1876 outputs_walk->bargc,
1879 set_font_colors(outputs_walk->bargc, fg_color, bg_color);
1880 draw_text(ws_walk->name, outputs_walk->buffer, outputs_walk->bargc,
1881 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1882 logical_px(ws_voff_px),
1883 ws_walk->name_width);
1885 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
1886 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
1887 workspace_width += logical_px(ws_spacing_px);
1891 if (binding.name && !config.disable_binding_mode_indicator) {
1892 workspace_width += logical_px(ws_spacing_px);
1894 uint32_t fg_color = colors.urgent_ws_fg;
1895 uint32_t bg_color = colors.urgent_ws_bg;
1896 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
1898 uint32_t vals_border[] = {colors.urgent_ws_border, colors.urgent_ws_border};
1899 xcb_change_gc(xcb_connection,
1900 outputs_walk->bargc,
1903 xcb_rectangle_t rect_border = {workspace_width,
1905 binding.width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1906 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1)};
1907 xcb_poly_fill_rectangle(xcb_connection,
1908 outputs_walk->buffer,
1909 outputs_walk->bargc,
1913 uint32_t vals[] = {bg_color, bg_color};
1914 xcb_change_gc(xcb_connection,
1915 outputs_walk->bargc,
1918 xcb_rectangle_t rect = {workspace_width + logical_px(1),
1920 binding.width + 2 * logical_px(ws_hoff_px),
1921 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1)};
1922 xcb_poly_fill_rectangle(xcb_connection,
1923 outputs_walk->buffer,
1924 outputs_walk->bargc,
1928 set_font_colors(outputs_walk->bargc, fg_color, bg_color);
1929 draw_text(binding.name,
1930 outputs_walk->buffer,
1931 outputs_walk->bargc,
1932 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1933 logical_px(ws_voff_px),
1937 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + binding.width;
1940 if (!TAILQ_EMPTY(&statusline_head)) {
1941 DLOG("Printing statusline!\n");
1943 int tray_width = get_tray_width(outputs_walk->trayclients);
1944 uint32_t max_statusline_width = outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px);
1946 /* If the statusline is too long, try to use short texts. */
1947 if (statusline_width > max_statusline_width)
1948 refresh_statusline(true);
1950 /* Luckily we already prepared a seperate pixmap containing the rendered
1951 * statusline, we just have to copy the relevant parts to the relevant
1953 int visible_statusline_width = MIN(statusline_width, max_statusline_width);
1954 xcb_copy_area(xcb_connection,
1956 outputs_walk->buffer,
1957 outputs_walk->bargc,
1958 (int16_t)(statusline_width - visible_statusline_width), 0,
1959 (int16_t)(outputs_walk->rect.w - tray_width - logical_px(sb_hoff_px) - visible_statusline_width), 0,
1960 (int16_t)visible_statusline_width, (int16_t)bar_height);
1963 workspace_width = 0;
1966 /* Assure the bar is hidden/unhidden according to the specified hidden_state and mode */
1968 config.hidden_state == S_SHOW ||
1971 } else if (config.hide_on_modifier == M_HIDE) {
1979 * Redraw the bars, i.e. simply copy the buffer to the barwindow
1982 void redraw_bars(void) {
1983 i3_output *outputs_walk;
1984 SLIST_FOREACH(outputs_walk, outputs, slist) {
1985 if (!outputs_walk->active) {
1988 xcb_copy_area(xcb_connection,
1989 outputs_walk->buffer,
1991 outputs_walk->bargc,
1994 outputs_walk->rect.w,
1995 outputs_walk->rect.h);
1996 xcb_flush(xcb_connection);
2001 * Set the current binding mode
2004 void set_current_mode(struct mode *current) {
2005 I3STRING_FREE(binding.name);
2007 activated_mode = binding.name != NULL;