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 /* Icon size (based on font size) */
66 /* Overall height of the bar (based on font size) */
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;
109 uint32_t binding_mode_bg;
110 uint32_t binding_mode_fg;
111 uint32_t binding_mode_border;
113 struct xcb_colors_t colors;
115 /* Horizontal offset between a workspace label and button borders */
116 static const int ws_hoff_px = 4;
118 /* Vertical offset between a workspace label and button borders */
119 static const int ws_voff_px = 3;
121 /* Offset between two workspace buttons */
122 static const int ws_spacing_px = 1;
124 /* Offset between the statusline and 1) workspace buttons on the left
125 * 2) the tray or screen edge on the right */
126 static const int sb_hoff_px = 4;
128 /* Additional offset between the tray and the statusline, if the tray is not empty */
129 static const int tray_loff_px = 2;
131 /* Vertical offset between the bar and a separator */
132 static const int sep_voff_px = 4;
134 /* We define xcb_request_failed as a macro to include the relevant line number */
135 #define xcb_request_failed(cookie, err_msg) _xcb_request_failed(cookie, err_msg, __LINE__)
136 int _xcb_request_failed(xcb_void_cookie_t cookie, char *err_msg, int line) {
137 xcb_generic_error_t *err;
138 if ((err = xcb_request_check(xcb_connection, cookie)) != NULL) {
139 fprintf(stderr, "[%s:%d] ERROR: %s. X Error Code: %d\n", __FILE__, line, err_msg, err->error_code);
140 return err->error_code;
145 uint32_t get_sep_offset(struct status_block *block) {
146 if (!block->no_separator && block->sep_block_width > 0)
147 return block->sep_block_width / 2 + block->sep_block_width % 2;
151 int get_tray_width(struct tc_head *trayclients) {
152 trayclient *trayclient;
154 TAILQ_FOREACH_REVERSE(trayclient, trayclients, tc_head, tailq) {
155 if (!trayclient->mapped)
157 tray_width += icon_size + logical_px(config.tray_padding);
160 tray_width += logical_px(tray_loff_px);
165 * Draws a separator for the given block if necessary.
168 static void draw_separator(uint32_t x, struct status_block *block) {
169 uint32_t sep_offset = get_sep_offset(block);
170 if (TAILQ_NEXT(block, blocks) == NULL || sep_offset == 0)
173 uint32_t center_x = x - sep_offset;
174 if (config.separator_symbol == NULL) {
175 /* Draw a classic one pixel, vertical separator. */
176 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_LINE_WIDTH;
177 uint32_t values[] = {colors.sep_fg, colors.bar_bg, logical_px(1)};
178 xcb_change_gc(xcb_connection, statusline_ctx, mask, values);
179 xcb_poly_line(xcb_connection, XCB_COORD_MODE_ORIGIN, statusline_pm, statusline_ctx, 2,
180 (xcb_point_t[]){{center_x, logical_px(sep_voff_px)},
181 {center_x, bar_height - logical_px(sep_voff_px)}});
183 /* Draw a custom separator. */
184 uint32_t separator_x = MAX(x - block->sep_block_width, center_x - separator_symbol_width / 2);
185 set_font_colors(statusline_ctx, colors.sep_fg, colors.bar_bg);
186 draw_text(config.separator_symbol, statusline_pm, statusline_ctx,
187 separator_x, logical_px(ws_voff_px), x - separator_x);
192 * Redraws the statusline to the buffer
195 void refresh_statusline(bool use_short_text) {
196 struct status_block *block;
198 uint32_t old_statusline_width = statusline_width;
199 statusline_width = 0;
201 /* Predict the text width of all blocks (in pixels). */
202 TAILQ_FOREACH(block, &statusline_head, blocks) {
203 /* Try to use the shorter text if necessary and possible. */
204 if (use_short_text && block->short_text != NULL) {
205 I3STRING_FREE(block->full_text);
206 block->full_text = i3string_copy(block->short_text);
209 if (i3string_get_num_bytes(block->full_text) == 0)
212 block->width = predict_text_width(block->full_text);
214 /* Compute offset and append for text aligment in min_width. */
215 if (block->min_width <= block->width) {
219 uint32_t padding_width = block->min_width - block->width;
220 switch (block->align) {
222 block->x_append = padding_width;
225 block->x_offset = padding_width;
228 block->x_offset = padding_width / 2;
229 block->x_append = padding_width / 2 + padding_width % 2;
234 /* If this is not the last block, add some pixels for a separator. */
235 if (TAILQ_NEXT(block, blocks) != NULL)
236 statusline_width += block->sep_block_width;
238 statusline_width += block->width + block->x_offset + block->x_append;
241 /* If the statusline is bigger than our screen we need to make sure that
242 * the pixmap provides enough space, so re-allocate if the width grew */
243 if (statusline_width > root_screen->width_in_pixels &&
244 statusline_width > old_statusline_width)
247 /* Clear the statusline pixmap. */
248 xcb_rectangle_t rect = {0, 0, MAX(root_screen->width_in_pixels, statusline_width), bar_height};
249 xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_clear, 1, &rect);
251 /* Draw the text of each block. */
253 TAILQ_FOREACH(block, &statusline_head, blocks) {
254 if (i3string_get_num_bytes(block->full_text) == 0)
258 /* If this block is urgent, draw it with the defined color and border. */
260 fg_color = colors.urgent_ws_fg;
262 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
264 /* Draw the background */
265 uint32_t bg_color = colors.urgent_ws_bg;
266 uint32_t bg_values[] = {bg_color, bg_color};
267 xcb_change_gc(xcb_connection, statusline_ctx, mask, bg_values);
269 /* The urgent background “overshoots” by 2 px so that the text that
270 * is printed onto it will not be look so cut off. */
271 xcb_rectangle_t bg_rect = {x - logical_px(2), logical_px(1), block->width + logical_px(4), bar_height - logical_px(2)};
272 xcb_poly_fill_rectangle(xcb_connection, statusline_pm, statusline_ctx, 1, &bg_rect);
274 fg_color = (block->color ? get_colorpixel(block->color) : colors.bar_fg);
277 set_font_colors(statusline_ctx, fg_color, colors.bar_bg);
278 draw_text(block->full_text, statusline_pm, statusline_ctx, x + block->x_offset, logical_px(ws_voff_px), block->width);
279 x += block->width + block->sep_block_width + block->x_offset + block->x_append;
281 /* If this is not the last block, draw a separator. */
282 draw_separator(x, block);
287 * Hides all bars (unmaps them)
290 void hide_bars(void) {
291 if ((config.hide_on_modifier == M_DOCK) || (config.hidden_state == S_SHOW && config.hide_on_modifier == M_HIDE)) {
296 SLIST_FOREACH(walk, outputs, slist) {
300 xcb_unmap_window(xcb_connection, walk->bar);
306 * Unhides all bars (maps them)
309 void unhide_bars(void) {
310 if (config.hide_on_modifier != M_HIDE) {
315 xcb_void_cookie_t cookie;
321 SLIST_FOREACH(walk, outputs, slist) {
322 if (walk->bar == XCB_NONE) {
325 mask = XCB_CONFIG_WINDOW_X |
326 XCB_CONFIG_WINDOW_Y |
327 XCB_CONFIG_WINDOW_WIDTH |
328 XCB_CONFIG_WINDOW_HEIGHT |
329 XCB_CONFIG_WINDOW_STACK_MODE;
330 values[0] = walk->rect.x;
331 if (config.position == POS_TOP)
332 values[1] = walk->rect.y;
334 values[1] = walk->rect.y + walk->rect.h - bar_height;
335 values[2] = walk->rect.w;
336 values[3] = bar_height;
337 values[4] = XCB_STACK_MODE_ABOVE;
338 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
339 cookie = xcb_configure_window_checked(xcb_connection,
344 if (xcb_request_failed(cookie, "Could not reconfigure window")) {
347 xcb_map_window(xcb_connection, walk->bar);
352 * Parse the colors into a format that we can use
355 void init_colors(const struct xcb_color_strings_t *new_colors) {
356 #define PARSE_COLOR(name, def) \
358 colors.name = get_colorpixel(new_colors->name ? new_colors->name : def); \
360 PARSE_COLOR(bar_fg, "#FFFFFF");
361 PARSE_COLOR(bar_bg, "#000000");
362 PARSE_COLOR(sep_fg, "#666666");
363 PARSE_COLOR(active_ws_fg, "#FFFFFF");
364 PARSE_COLOR(active_ws_bg, "#333333");
365 PARSE_COLOR(active_ws_border, "#333333");
366 PARSE_COLOR(inactive_ws_fg, "#888888");
367 PARSE_COLOR(inactive_ws_bg, "#222222");
368 PARSE_COLOR(inactive_ws_border, "#333333");
369 PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
370 PARSE_COLOR(urgent_ws_bg, "#900000");
371 PARSE_COLOR(urgent_ws_border, "#2f343a");
372 PARSE_COLOR(focus_ws_fg, "#FFFFFF");
373 PARSE_COLOR(focus_ws_bg, "#285577");
374 PARSE_COLOR(focus_ws_border, "#4c7899");
377 #define PARSE_COLOR_FALLBACK(name, fallback) \
379 colors.name = new_colors->name ? get_colorpixel(new_colors->name) : colors.fallback; \
382 /* For the binding mode indicator colors, we don't hardcode a default.
383 * Instead, we fall back to urgent_ws_* colors. */
384 PARSE_COLOR_FALLBACK(binding_mode_fg, urgent_ws_fg);
385 PARSE_COLOR_FALLBACK(binding_mode_bg, urgent_ws_bg);
386 PARSE_COLOR_FALLBACK(binding_mode_border, urgent_ws_border);
387 #undef PARSE_COLOR_FALLBACK
390 xcb_flush(xcb_connection);
394 * Handle a button press event (i.e. a mouse click on one of our bars).
395 * We determine, whether the click occured on a workspace button or if the scroll-
396 * wheel was used and change the workspace appropriately
399 void handle_button(xcb_button_press_event_t *event) {
400 /* Determine, which bar was clicked */
402 xcb_window_t bar = event->event;
403 SLIST_FOREACH(walk, outputs, slist) {
404 if (walk->bar == bar) {
410 DLOG("Unknown bar clicked!\n");
414 int32_t x = event->event_x >= 0 ? event->event_x : 0;
415 int32_t original_x = x;
417 DLOG("Got button %d\n", event->detail);
419 int workspace_width = 0;
420 i3_ws *cur_ws = NULL, *clicked_ws = NULL, *ws_walk;
422 TAILQ_FOREACH(ws_walk, walk->workspaces, tailq) {
423 int w = 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
424 if (x >= workspace_width && x <= workspace_width + w)
425 clicked_ws = ws_walk;
426 if (ws_walk->visible)
428 workspace_width += w;
429 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
430 workspace_width += logical_px(ws_spacing_px);
433 if (x > workspace_width && child_want_click_events()) {
434 /* If the child asked for click events,
435 * check if a status block has been clicked. */
436 int tray_width = get_tray_width(walk->trayclients);
437 int block_x = 0, last_block_x;
438 int offset = walk->rect.w - statusline_width - tray_width - logical_px(sb_hoff_px);
440 x = original_x - offset;
441 if (x >= 0 && (size_t)x < statusline_width) {
442 struct status_block *block;
443 int sep_offset_remainder = 0;
445 TAILQ_FOREACH(block, &statusline_head, blocks) {
446 if (i3string_get_num_bytes(block->full_text) == 0)
449 last_block_x = block_x;
450 block_x += block->width + block->x_offset + block->x_append + get_sep_offset(block) + sep_offset_remainder;
452 if (x <= block_x && x >= last_block_x) {
453 send_block_clicked(event->detail, block->name, block->instance, event->root_x, event->root_y);
457 sep_offset_remainder = block->sep_block_width - get_sep_offset(block);
463 /* If a custom command was specified for this mouse button, it overrides
464 * the default behavior. */
466 TAILQ_FOREACH(binding, &(config.bindings), bindings) {
467 if (binding->input_code != event->detail)
470 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, binding->command);
474 if (cur_ws == NULL) {
475 DLOG("No workspace active?\n");
478 switch (event->detail) {
480 /* Mouse wheel up. We select the previous ws, if any.
481 * If there is no more workspace, don’t even send the workspace
482 * command, otherwise (with workspace auto_back_and_forth) we’d end
483 * up on the wrong workspace. */
484 if (cur_ws == TAILQ_FIRST(walk->workspaces))
487 cur_ws = TAILQ_PREV(cur_ws, ws_head, tailq);
490 /* Mouse wheel down. We select the next ws, if any.
491 * If there is no more workspace, don’t even send the workspace
492 * command, otherwise (with workspace auto_back_and_forth) we’d end
493 * up on the wrong workspace. */
494 if (cur_ws == TAILQ_LAST(walk->workspaces, ws_head))
497 cur_ws = TAILQ_NEXT(cur_ws, tailq);
502 /* if no workspace was clicked, focus our currently visible
503 * workspace if it is not already focused */
504 if (cur_ws == NULL) {
505 TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
506 if (cur_ws->visible && !cur_ws->focused)
511 /* if there is nothing to focus, we are done */
520 /* To properly handle workspace names with double quotes in them, we need
521 * to escape the double quotes. Unfortunately, that’s rather ugly in C: We
522 * first count the number of double quotes, then we allocate a large enough
523 * buffer, then we copy character by character. */
526 const char *utf8_name = cur_ws->canonical_name;
527 for (const char *walk = utf8_name; *walk != '\0'; walk++) {
528 if (*walk == '"' || *walk == '\\')
530 /* While we’re looping through the name anyway, we can save one
535 const size_t len = namelen + strlen("workspace \"\"") + 1;
536 char *buffer = scalloc(len + num_quotes, 1);
537 strncpy(buffer, "workspace \"", strlen("workspace \""));
538 size_t inpos, outpos;
539 for (inpos = 0, outpos = strlen("workspace \"");
542 if (utf8_name[inpos] == '"' || utf8_name[inpos] == '\\') {
543 buffer[outpos] = '\\';
546 buffer[outpos] = utf8_name[inpos];
548 buffer[outpos] = '"';
549 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, buffer);
554 * Handle visibility notifications: when none of the bars are visible, e.g.
555 * if windows are in fullscreen on each output, suspend the child process.
558 static void handle_visibility_notify(xcb_visibility_notify_event_t *event) {
559 bool visible = (event->state != XCB_VISIBILITY_FULLY_OBSCURED);
563 SLIST_FOREACH(output, outputs, slist) {
564 if (!output->active) {
567 if (output->bar == event->window) {
568 if (output->visible == visible) {
571 output->visible = visible;
573 num_visible += output->visible;
576 if (num_visible == 0) {
578 } else if (num_visible == visible) {
579 /* Wake the child only when transitioning from 0 to 1 visible bar.
580 * We cannot transition from 0 to 2 or more visible bars at once since
581 * visibility events are delivered to each window separately */
587 * Adjusts the size of the tray window and alignment of the tray clients by
588 * configuring their respective x coordinates. To be called when mapping or
589 * unmapping a tray client window.
592 static void configure_trayclients(void) {
593 trayclient *trayclient;
595 SLIST_FOREACH(output, outputs, slist) {
600 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
601 if (!trayclient->mapped)
605 DLOG("Configuring tray window %08x to x=%d\n",
606 trayclient->win, output->rect.w - (clients * (icon_size + logical_px(config.tray_padding))));
607 uint32_t x = output->rect.w - (clients * (icon_size + logical_px(config.tray_padding)));
608 xcb_configure_window(xcb_connection,
617 * Handles ClientMessages (messages sent from another client directly to us).
619 * At the moment, only the tray window will receive client messages. All
620 * supported client messages currently are _NET_SYSTEM_TRAY_OPCODE.
623 static void handle_client_message(xcb_client_message_event_t *event) {
624 if (event->type == atoms[_NET_SYSTEM_TRAY_OPCODE] &&
625 event->format == 32) {
626 DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
627 /* event->data.data32[0] is the timestamp */
628 uint32_t op = event->data.data32[1];
631 if (op == SYSTEM_TRAY_REQUEST_DOCK) {
632 xcb_window_t client = event->data.data32[2];
634 /* Listen for PropertyNotify events to get the most recent value of
635 * the XEMBED_MAPPED atom, also listen for UnmapNotify events */
636 mask = XCB_CW_EVENT_MASK;
637 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
638 XCB_EVENT_MASK_STRUCTURE_NOTIFY;
639 xcb_change_window_attributes(xcb_connection,
644 /* Request the _XEMBED_INFO property. The XEMBED specification
645 * (which is referred by the tray specification) says this *has* to
646 * be set, but VLC does not set it… */
649 xcb_get_property_cookie_t xembedc;
650 xcb_generic_error_t *error;
651 xembedc = xcb_get_property(xcb_connection,
655 XCB_GET_PROPERTY_TYPE_ANY,
659 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
663 ELOG("Error getting _XEMBED_INFO property: error_code %d\n",
668 if (xembedr != NULL && xembedr->length != 0) {
669 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
670 uint32_t *xembed = xcb_get_property_value(xembedr);
671 DLOG("xembed version = %d\n", xembed[0]);
672 DLOG("xembed flags = %d\n", xembed[1]);
673 map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
674 xe_version = xembed[0];
679 ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
682 DLOG("X window %08x requested docking\n", client);
683 i3_output *walk, *output = NULL;
684 SLIST_FOREACH(walk, outputs, slist) {
687 if (config.tray_output) {
688 if ((strcasecmp(walk->name, config.tray_output) != 0) &&
689 (!walk->primary || strcasecmp("primary", config.tray_output) != 0))
693 DLOG("using output %s\n", walk->name);
697 /* In case of tray_output == primary and there is no primary output
698 * configured, we fall back to the first available output. */
699 if (output == NULL &&
700 config.tray_output &&
701 strcasecmp("primary", config.tray_output) == 0) {
702 SLIST_FOREACH(walk, outputs, slist) {
705 DLOG("Falling back to output %s because no primary output is configured\n", walk->name);
710 if (output == NULL) {
711 ELOG("No output found\n");
714 xcb_reparent_window(xcb_connection,
717 output->rect.w - icon_size - logical_px(config.tray_padding),
718 logical_px(config.tray_padding));
719 /* We reconfigure the window to use a reasonable size. The systray
720 * specification explicitly says:
721 * Tray icons may be assigned any size by the system tray, and
722 * should do their best to cope with any size effectively
724 mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
725 values[0] = icon_size;
726 values[1] = icon_size;
727 xcb_configure_window(xcb_connection,
732 /* send the XEMBED_EMBEDDED_NOTIFY message */
733 void *event = scalloc(32, 1);
734 xcb_client_message_event_t *ev = event;
735 ev->response_type = XCB_CLIENT_MESSAGE;
737 ev->type = atoms[_XEMBED];
739 ev->data.data32[0] = XCB_CURRENT_TIME;
740 ev->data.data32[1] = atoms[XEMBED_EMBEDDED_NOTIFY];
741 ev->data.data32[2] = output->bar;
742 ev->data.data32[3] = xe_version;
743 xcb_send_event(xcb_connection,
746 XCB_EVENT_MASK_NO_EVENT,
750 /* Put the client inside the save set. Upon termination (whether
751 * killed or normal exit does not matter) of i3bar, these clients
752 * will be correctly reparented to their most closest living
753 * ancestor. Without this, tray icons might die when i3bar
755 xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
757 trayclient *tc = smalloc(sizeof(trayclient));
759 tc->xe_version = xe_version;
761 TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
764 DLOG("Mapping dock client\n");
765 xcb_map_window(xcb_connection, client);
767 DLOG("Not mapping dock client yet\n");
769 /* Trigger an update to copy the statusline text to the appropriate
771 configure_trayclients();
778 * Handles DestroyNotify events by removing the tray client from the data
779 * structure. According to the XEmbed protocol, this is one way for a tray
780 * client to finish the protocol. After this event is received, there is no
781 * further interaction with the tray client.
783 * See: http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
786 static void handle_destroy_notify(xcb_destroy_notify_event_t *event) {
787 DLOG("DestroyNotify for window = %08x, event = %08x\n", event->window, event->event);
790 SLIST_FOREACH(walk, outputs, slist) {
793 DLOG("checking output %s\n", walk->name);
794 trayclient *trayclient;
795 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
796 if (trayclient->win != event->window)
799 DLOG("Removing tray client with window ID %08x\n", event->window);
800 TAILQ_REMOVE(walk->trayclients, trayclient, tailq);
802 /* Trigger an update, we now have more space for the statusline */
803 configure_trayclients();
811 * Handles MapNotify events. These events happen when a tray client shows its
812 * window. We respond by realigning the tray clients.
815 static void handle_map_notify(xcb_map_notify_event_t *event) {
816 DLOG("MapNotify for window = %08x, event = %08x\n", event->window, event->event);
819 SLIST_FOREACH(walk, outputs, slist) {
822 DLOG("checking output %s\n", walk->name);
823 trayclient *trayclient;
824 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
825 if (trayclient->win != event->window)
828 DLOG("Tray client mapped (window ID %08x). Adjusting tray.\n", event->window);
829 trayclient->mapped = true;
831 /* Trigger an update, we now have more space for the statusline */
832 configure_trayclients();
839 * Handles UnmapNotify events. These events happen when a tray client hides its
840 * window. We respond by realigning the tray clients.
843 static void handle_unmap_notify(xcb_unmap_notify_event_t *event) {
844 DLOG("UnmapNotify for window = %08x, event = %08x\n", event->window, event->event);
847 SLIST_FOREACH(walk, outputs, slist) {
850 DLOG("checking output %s\n", walk->name);
851 trayclient *trayclient;
852 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
853 if (trayclient->win != event->window)
856 DLOG("Tray client unmapped (window ID %08x). Adjusting tray.\n", event->window);
857 trayclient->mapped = false;
859 /* Trigger an update, we now have more space for the statusline */
860 configure_trayclients();
868 * Handle PropertyNotify messages. Currently only the _XEMBED_INFO property is
869 * handled, which tells us whether a dock client should be mapped or unmapped.
872 static void handle_property_notify(xcb_property_notify_event_t *event) {
873 DLOG("PropertyNotify\n");
874 if (event->atom == atoms[_XEMBED_INFO] &&
875 event->state == XCB_PROPERTY_NEW_VALUE) {
876 DLOG("xembed_info updated\n");
877 trayclient *trayclient = NULL, *walk;
879 SLIST_FOREACH(o_walk, outputs, slist) {
883 TAILQ_FOREACH(walk, o_walk->trayclients, tailq) {
884 if (walk->win != event->window)
894 ELOG("PropertyNotify received for unknown window %08x\n",
898 xcb_get_property_cookie_t xembedc;
899 xembedc = xcb_get_property_unchecked(xcb_connection,
903 XCB_GET_PROPERTY_TYPE_ANY,
907 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
910 if (xembedr == NULL || xembedr->length == 0) {
911 DLOG("xembed_info unset\n");
915 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
916 uint32_t *xembed = xcb_get_property_value(xembedr);
917 DLOG("xembed version = %d\n", xembed[0]);
918 DLOG("xembed flags = %d\n", xembed[1]);
919 bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
920 DLOG("map state now %d\n", map_it);
921 if (trayclient->mapped && !map_it) {
922 /* need to unmap the window */
923 xcb_unmap_window(xcb_connection, trayclient->win);
924 } else if (!trayclient->mapped && map_it) {
925 /* need to map the window */
926 xcb_map_window(xcb_connection, trayclient->win);
933 * Handle ConfigureRequests by denying them and sending the client a
934 * ConfigureNotify with its actual size.
937 static void handle_configure_request(xcb_configure_request_event_t *event) {
938 DLOG("ConfigureRequest for window = %08x\n", event->window);
940 trayclient *trayclient;
942 SLIST_FOREACH(output, outputs, slist) {
947 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
948 if (!trayclient->mapped)
952 if (trayclient->win != event->window)
955 xcb_rectangle_t rect;
956 rect.x = output->rect.w - (clients * (icon_size + logical_px(config.tray_padding)));
957 rect.y = logical_px(config.tray_padding);
958 rect.width = icon_size;
959 rect.height = icon_size;
961 DLOG("This is a tray window. x = %d\n", rect.x);
962 fake_configure_notify(xcb_connection, rect, event->window, 0);
967 DLOG("WARNING: Could not find corresponding tray window.\n");
971 * This function is called immediately before the main loop locks. We flush xcb
972 * then (and only then)
975 void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
976 xcb_flush(xcb_connection);
980 * This function is called immediately after the main loop locks, so when one
981 * of the watchers registered an event.
982 * We check whether an X-Event arrived and handle it.
985 void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
986 xcb_generic_event_t *event;
988 if (xcb_connection_has_error(xcb_connection)) {
989 ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
993 while ((event = xcb_poll_for_event(xcb_connection)) != NULL) {
994 int type = (event->response_type & ~0x80);
996 if (type == xkb_base && xkb_base > -1) {
997 DLOG("received an xkb event\n");
999 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
1000 if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
1001 int modstate = state->mods & config.modifier;
1003 #define DLOGMOD(modmask, status) \
1005 switch (modmask) { \
1007 DLOG("ShiftMask got " #status "!\n"); \
1010 DLOG("ControlMask got " #status "!\n"); \
1013 DLOG("Mod1Mask got " #status "!\n"); \
1016 DLOG("Mod2Mask got " #status "!\n"); \
1019 DLOG("Mod3Mask got " #status "!\n"); \
1022 DLOG("Mod4Mask got " #status "!\n"); \
1025 DLOG("Mod5Mask got " #status "!\n"); \
1030 if (modstate != mod_pressed) {
1031 if (modstate == 0) {
1032 DLOGMOD(config.modifier, released);
1033 if (!activated_mode)
1036 DLOGMOD(config.modifier, pressed);
1037 activated_mode = false;
1040 mod_pressed = modstate;
1050 case XCB_VISIBILITY_NOTIFY:
1051 /* Visibility change: a bar is [un]obscured by other window */
1052 handle_visibility_notify((xcb_visibility_notify_event_t *)event);
1055 /* Expose-events happen, when the window needs to be redrawn */
1058 case XCB_BUTTON_PRESS:
1059 /* Button press events are mouse buttons clicked on one of our bars */
1060 handle_button((xcb_button_press_event_t *)event);
1062 case XCB_CLIENT_MESSAGE:
1063 /* Client messages are used for client-to-client communication, for
1064 * example system tray widgets talk to us directly via client messages. */
1065 handle_client_message((xcb_client_message_event_t *)event);
1067 case XCB_DESTROY_NOTIFY:
1068 /* DestroyNotify signifies the end of the XEmbed protocol */
1069 handle_destroy_notify((xcb_destroy_notify_event_t *)event);
1071 case XCB_UNMAP_NOTIFY:
1072 /* UnmapNotify is received when a tray client hides its window. */
1073 handle_unmap_notify((xcb_unmap_notify_event_t *)event);
1075 case XCB_MAP_NOTIFY:
1076 handle_map_notify((xcb_map_notify_event_t *)event);
1078 case XCB_PROPERTY_NOTIFY:
1079 /* PropertyNotify */
1080 handle_property_notify((xcb_property_notify_event_t *)event);
1082 case XCB_CONFIGURE_REQUEST:
1083 /* ConfigureRequest, sent by a tray child */
1084 handle_configure_request((xcb_configure_request_event_t *)event);
1092 * Dummy callback. We only need this, so that the prepare and check watchers
1096 void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
1100 * Early initialization of the connection to X11: Everything which does not
1101 * depend on 'config'.
1104 char *init_xcb_early() {
1105 /* FIXME: xcb_connect leaks memory */
1106 xcb_connection = xcb_connect(NULL, &screen);
1107 if (xcb_connection_has_error(xcb_connection)) {
1108 ELOG("Cannot open display\n");
1111 conn = xcb_connection;
1112 DLOG("Connected to xcb\n");
1114 /* We have to request the atoms we need */
1115 #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
1116 #include "xcb_atoms.def"
1118 root_screen = xcb_aux_get_screen(xcb_connection, screen);
1119 xcb_root = root_screen->root;
1121 /* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
1122 * this way, we can choose to crop it */
1123 uint32_t mask = XCB_GC_FOREGROUND;
1124 uint32_t vals[] = {colors.bar_bg, colors.bar_bg};
1126 statusline_clear = xcb_generate_id(xcb_connection);
1127 xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1133 statusline_ctx = xcb_generate_id(xcb_connection);
1134 xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1140 statusline_pm = xcb_generate_id(xcb_connection);
1141 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1142 root_screen->root_depth,
1145 root_screen->width_in_pixels,
1146 root_screen->height_in_pixels);
1148 /* The various watchers to communicate with xcb */
1149 xcb_io = smalloc(sizeof(ev_io));
1150 xcb_prep = smalloc(sizeof(ev_prepare));
1151 xcb_chk = smalloc(sizeof(ev_check));
1153 ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
1154 ev_prepare_init(xcb_prep, &xcb_prep_cb);
1155 ev_check_init(xcb_chk, &xcb_chk_cb);
1157 ev_io_start(main_loop, xcb_io);
1158 ev_prepare_start(main_loop, xcb_prep);
1159 ev_check_start(main_loop, xcb_chk);
1161 /* Now we get the atoms and save them in a nice data structure */
1164 char *path = root_atom_contents("I3_SOCKET_PATH", xcb_connection, screen);
1166 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer") ||
1167 xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline buffer clearcontext") ||
1168 xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline buffer context")) {
1176 * Register for xkb keyevents. To grab modifiers without blocking other applications from receiving key events
1177 * involving that modifier, we sadly have to use xkb which is not yet fully supported
1181 void register_xkb_keyevents() {
1182 const xcb_query_extension_reply_t *extreply;
1183 extreply = xcb_get_extension_data(conn, &xcb_xkb_id);
1184 if (!extreply->present) {
1185 ELOG("xkb is not present on this server\n");
1188 DLOG("initializing xcb-xkb\n");
1189 xcb_xkb_use_extension(conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION);
1190 xcb_xkb_select_events(conn,
1191 XCB_XKB_ID_USE_CORE_KBD,
1192 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1194 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1198 xkb_base = extreply->first_event;
1202 * Deregister from xkb keyevents.
1205 void deregister_xkb_keyevents() {
1206 xcb_xkb_select_events(conn,
1207 XCB_XKB_ID_USE_CORE_KBD,
1217 * Initialization which depends on 'config' being usable. Called after the
1218 * configuration has arrived.
1221 void init_xcb_late(char *fontname) {
1222 if (fontname == NULL)
1223 fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
1226 font = load_font(fontname, true);
1228 DLOG("Calculated font height: %d\n", font.height);
1229 bar_height = font.height + 2 * logical_px(ws_voff_px);
1230 icon_size = bar_height - 2 * logical_px(config.tray_padding);
1232 if (config.separator_symbol)
1233 separator_symbol_width = predict_text_width(config.separator_symbol);
1235 xcb_flush(xcb_connection);
1237 if (config.hide_on_modifier == M_HIDE)
1238 register_xkb_keyevents();
1242 * Inform clients waiting for a new _NET_SYSTEM_TRAY that we took the
1246 static void send_tray_clientmessage(void) {
1247 uint8_t buffer[32] = {0};
1248 xcb_client_message_event_t *ev = (xcb_client_message_event_t *)buffer;
1250 ev->response_type = XCB_CLIENT_MESSAGE;
1251 ev->window = xcb_root;
1252 ev->type = atoms[MANAGER];
1254 ev->data.data32[0] = XCB_CURRENT_TIME;
1255 ev->data.data32[1] = tray_reply->atom;
1256 ev->data.data32[2] = selwin;
1258 xcb_send_event(xcb_connection,
1266 * Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
1267 * for the X11 display we are running on, then acquiring the selection for this
1268 * atom. Afterwards, tray clients will send ClientMessages to our window.
1271 void init_tray(void) {
1272 DLOG("Initializing system tray functionality\n");
1273 /* request the tray manager atom for the X11 display we are running on */
1274 char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
1275 snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
1276 xcb_intern_atom_cookie_t tray_cookie;
1277 if (tray_reply == NULL)
1278 tray_cookie = xcb_intern_atom(xcb_connection, 0, strlen(atomname), atomname);
1280 /* tray support: we need a window to own the selection */
1281 selwin = xcb_generate_id(xcb_connection);
1282 uint32_t selmask = XCB_CW_OVERRIDE_REDIRECT;
1283 uint32_t selval[] = {1};
1284 xcb_create_window(xcb_connection,
1285 root_screen->root_depth,
1291 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1292 root_screen->root_visual,
1296 uint32_t orientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
1298 xcb_change_property(xcb_connection,
1299 XCB_PROP_MODE_REPLACE,
1301 atoms[_NET_SYSTEM_TRAY_ORIENTATION],
1309 if (tray_reply == NULL) {
1310 if (!(tray_reply = xcb_intern_atom_reply(xcb_connection, tray_cookie, NULL))) {
1311 ELOG("Could not get atom %s\n", atomname);
1316 xcb_set_selection_owner(xcb_connection,
1321 /* Verify that we have the selection */
1322 xcb_get_selection_owner_cookie_t selcookie;
1323 xcb_get_selection_owner_reply_t *selreply;
1325 selcookie = xcb_get_selection_owner(xcb_connection, tray_reply->atom);
1326 if (!(selreply = xcb_get_selection_owner_reply(xcb_connection, selcookie, NULL))) {
1327 ELOG("Could not get selection owner for %s\n", atomname);
1331 if (selreply->owner != selwin) {
1332 ELOG("Could not set the %s selection. "
1333 "Maybe another tray is already running?\n",
1335 /* NOTE that this error is not fatal. We just can’t provide tray
1341 send_tray_clientmessage();
1345 * We need to set the _NET_SYSTEM_TRAY_COLORS atom on the tray selection window
1346 * to make GTK+ 3 applets with symbolic icons visible. If the colors are unset,
1347 * they assume a light background.
1348 * See also https://bugzilla.gnome.org/show_bug.cgi?id=679591
1351 void init_tray_colors(void) {
1352 /* Convert colors.bar_fg (#rrggbb) to 16-bit RGB */
1353 const char *bar_fg = (config.colors.bar_fg ? config.colors.bar_fg : "#FFFFFF");
1355 DLOG("Setting bar_fg = %s as _NET_SYSTEM_TRAY_COLORS\n", bar_fg);
1357 char strgroups[3][3] = {{bar_fg[1], bar_fg[2], '\0'},
1358 {bar_fg[3], bar_fg[4], '\0'},
1359 {bar_fg[5], bar_fg[6], '\0'}};
1360 const uint8_t r = strtol(strgroups[0], NULL, 16);
1361 const uint8_t g = strtol(strgroups[1], NULL, 16);
1362 const uint8_t b = strtol(strgroups[2], NULL, 16);
1364 const uint16_t r16 = ((uint16_t)r << 8) | r;
1365 const uint16_t g16 = ((uint16_t)g << 8) | g;
1366 const uint16_t b16 = ((uint16_t)b << 8) | b;
1368 const uint32_t tray_colors[12] = {
1369 r16, g16, b16, /* foreground color */
1370 r16, g16, b16, /* error color */
1371 r16, g16, b16, /* warning color */
1372 r16, g16, b16, /* success color */
1375 xcb_change_property(xcb_connection,
1376 XCB_PROP_MODE_REPLACE,
1378 atoms[_NET_SYSTEM_TRAY_COLORS],
1386 * Cleanup the xcb stuff.
1387 * Called once, before the program terminates.
1390 void clean_xcb(void) {
1393 SLIST_FOREACH(o_walk, outputs, slist) {
1394 destroy_window(o_walk);
1395 FREE(o_walk->trayclients);
1396 FREE(o_walk->workspaces);
1399 FREE_SLIST(outputs, i3_output);
1402 xcb_flush(xcb_connection);
1403 xcb_aux_sync(xcb_connection);
1404 xcb_disconnect(xcb_connection);
1406 ev_check_stop(main_loop, xcb_chk);
1407 ev_prepare_stop(main_loop, xcb_prep);
1408 ev_io_stop(main_loop, xcb_io);
1416 * Get the earlier requested atoms and save them in the prepared data structure
1419 void get_atoms(void) {
1420 xcb_intern_atom_reply_t *reply;
1421 #define ATOM_DO(name) \
1422 reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
1423 if (reply == NULL) { \
1424 ELOG("Could not get atom %s\n", #name); \
1425 exit(EXIT_FAILURE); \
1427 atoms[name] = reply->atom; \
1430 #include "xcb_atoms.def"
1431 DLOG("Got atoms\n");
1435 * Reparents all tray clients of the specified output to the root window. This
1436 * is either used when shutting down, when an output appears (xrandr --output
1437 * VGA1 --off) or when the primary output changes.
1439 * Applications using the tray will start the protocol from the beginning again
1443 void kick_tray_clients(i3_output *output) {
1444 if (TAILQ_EMPTY(output->trayclients))
1447 trayclient *trayclient;
1448 while (!TAILQ_EMPTY(output->trayclients)) {
1449 trayclient = TAILQ_FIRST(output->trayclients);
1450 /* Unmap, then reparent (to root) the tray client windows */
1451 xcb_unmap_window(xcb_connection, trayclient->win);
1452 xcb_reparent_window(xcb_connection,
1458 /* We remove the trayclient right here. We might receive an UnmapNotify
1459 * event afterwards, but better safe than sorry. */
1460 TAILQ_REMOVE(output->trayclients, trayclient, tailq);
1463 /* Fake a DestroyNotify so that Qt re-adds tray icons.
1464 * We cannot actually destroy the window because then Qt will not restore
1465 * its event mask on the new window. */
1466 uint8_t buffer[32] = {0};
1467 xcb_destroy_notify_event_t *event = (xcb_destroy_notify_event_t *)buffer;
1469 event->response_type = XCB_DESTROY_NOTIFY;
1470 event->event = selwin;
1471 event->window = selwin;
1473 xcb_send_event(conn, false, selwin, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *)event);
1475 send_tray_clientmessage();
1479 * Destroy the bar of the specified output
1482 void destroy_window(i3_output *output) {
1483 if (output == NULL) {
1486 if (output->bar == XCB_NONE) {
1490 kick_tray_clients(output);
1491 xcb_destroy_window(xcb_connection, output->bar);
1492 output->bar = XCB_NONE;
1496 * Reallocate the statusline buffer
1499 void realloc_sl_buffer(void) {
1500 DLOG("Re-allocating statusline buffer, statusline_width = %d, root_screen->width_in_pixels = %d\n",
1501 statusline_width, root_screen->width_in_pixels);
1502 xcb_free_pixmap(xcb_connection, statusline_pm);
1503 statusline_pm = xcb_generate_id(xcb_connection);
1504 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1505 root_screen->root_depth,
1508 MAX(root_screen->width_in_pixels, statusline_width),
1511 uint32_t mask = XCB_GC_FOREGROUND;
1512 uint32_t vals[2] = {colors.bar_bg, colors.bar_bg};
1513 xcb_free_gc(xcb_connection, statusline_clear);
1514 statusline_clear = xcb_generate_id(xcb_connection);
1515 xcb_void_cookie_t clear_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1521 mask |= XCB_GC_BACKGROUND;
1522 vals[0] = colors.bar_fg;
1523 xcb_free_gc(xcb_connection, statusline_ctx);
1524 statusline_ctx = xcb_generate_id(xcb_connection);
1525 xcb_void_cookie_t sl_ctx_cookie = xcb_create_gc_checked(xcb_connection,
1531 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer") ||
1532 xcb_request_failed(clear_ctx_cookie, "Could not allocate statusline buffer clearcontext") ||
1533 xcb_request_failed(sl_ctx_cookie, "Could not allocate statusline buffer context")) {
1538 /* Strut partial tells i3 where to reserve space for i3bar. This is determined
1539 * by the `position` bar config directive. */
1540 xcb_void_cookie_t config_strut_partial(i3_output *output) {
1541 /* A local struct to save the strut_partial property */
1547 uint32_t left_start_y;
1548 uint32_t left_end_y;
1549 uint32_t right_start_y;
1550 uint32_t right_end_y;
1551 uint32_t top_start_x;
1553 uint32_t bottom_start_x;
1554 uint32_t bottom_end_x;
1555 } __attribute__((__packed__)) strut_partial;
1556 memset(&strut_partial, 0, sizeof(strut_partial));
1558 switch (config.position) {
1562 strut_partial.top = bar_height;
1563 strut_partial.top_start_x = output->rect.x;
1564 strut_partial.top_end_x = output->rect.x + output->rect.w;
1567 strut_partial.bottom = bar_height;
1568 strut_partial.bottom_start_x = output->rect.x;
1569 strut_partial.bottom_end_x = output->rect.x + output->rect.w;
1572 return xcb_change_property(xcb_connection,
1573 XCB_PROP_MODE_REPLACE,
1575 atoms[_NET_WM_STRUT_PARTIAL],
1583 * Reconfigure all bars and create new bars for recently activated outputs
1586 void reconfig_windows(bool redraw_bars) {
1589 static bool tray_configured = false;
1592 SLIST_FOREACH(walk, outputs, slist) {
1593 if (!walk->active) {
1594 /* If an output is not active, we destroy its bar */
1595 /* FIXME: Maybe we rather want to unmap? */
1596 DLOG("Destroying window for output %s\n", walk->name);
1597 destroy_window(walk);
1600 if (walk->bar == XCB_NONE) {
1601 DLOG("Creating window for output %s\n", walk->name);
1603 walk->bar = xcb_generate_id(xcb_connection);
1604 walk->buffer = xcb_generate_id(xcb_connection);
1605 mask = XCB_CW_BACK_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK;
1606 /* Black background */
1607 values[0] = colors.bar_bg;
1608 /* If hide_on_modifier is set to hide or invisible mode, i3 is not supposed to manage our bar windows */
1609 values[1] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1610 /* We enable the following EventMask fields:
1611 * EXPOSURE, to get expose events (we have to re-draw then)
1612 * SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
1613 * child windows use ConfigureWindow
1614 * BUTTON_PRESS, to handle clicks on the workspace buttons
1616 values[2] = XCB_EVENT_MASK_EXPOSURE |
1617 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
1618 XCB_EVENT_MASK_BUTTON_PRESS;
1619 if (config.hide_on_modifier == M_DOCK) {
1620 /* If the bar is normally visible, catch visibility change events to suspend
1621 * the status process when the bar is obscured by full-screened windows. */
1622 values[2] |= XCB_EVENT_MASK_VISIBILITY_CHANGE;
1623 walk->visible = true;
1625 xcb_void_cookie_t win_cookie = xcb_create_window_checked(xcb_connection,
1626 root_screen->root_depth,
1629 walk->rect.x, walk->rect.y + walk->rect.h - bar_height,
1630 walk->rect.w, bar_height,
1632 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1633 root_screen->root_visual,
1637 /* The double-buffer we use to render stuff off-screen */
1638 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1639 root_screen->root_depth,
1645 /* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
1646 xcb_void_cookie_t class_cookie;
1647 class_cookie = xcb_change_property(xcb_connection,
1648 XCB_PROP_MODE_REPLACE,
1653 (strlen("i3bar") + 1) * 2,
1657 sasprintf(&name, "i3bar for output %s", walk->name);
1658 xcb_void_cookie_t name_cookie;
1659 name_cookie = xcb_change_property(xcb_connection,
1660 XCB_PROP_MODE_REPLACE,
1669 /* We want dock windows (for now). When override_redirect is set, i3 is ignoring
1671 xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
1672 XCB_PROP_MODE_REPLACE,
1674 atoms[_NET_WM_WINDOW_TYPE],
1678 (unsigned char *)&atoms[_NET_WM_WINDOW_TYPE_DOCK]);
1680 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1682 /* We also want a graphics context for the bars (it defines the properties
1683 * with which we draw to them) */
1684 walk->bargc = xcb_generate_id(xcb_connection);
1685 xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(xcb_connection,
1691 /* We finally map the bar (display it on screen), unless the modifier-switch is on */
1692 xcb_void_cookie_t map_cookie;
1693 if (config.hide_on_modifier == M_DOCK) {
1694 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
1697 if (xcb_request_failed(win_cookie, "Could not create window") ||
1698 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1699 xcb_request_failed(dock_cookie, "Could not set dock mode") ||
1700 xcb_request_failed(class_cookie, "Could not set WM_CLASS") ||
1701 xcb_request_failed(name_cookie, "Could not set WM_NAME") ||
1702 xcb_request_failed(strut_cookie, "Could not set strut") ||
1703 xcb_request_failed(gc_cookie, "Could not create graphical context") ||
1704 ((config.hide_on_modifier == M_DOCK) && xcb_request_failed(map_cookie, "Could not map window"))) {
1708 const char *tray_output = (config.tray_output ? config.tray_output : SLIST_FIRST(outputs)->name);
1709 if (!tray_configured && strcasecmp(tray_output, "none") != 0) {
1710 /* Configuration sanity check: ensure this i3bar instance handles the output on
1711 * which the tray should appear (e.g. don’t initialize a tray if tray_output ==
1712 * VGA-1 but output == [HDMI-1]).
1715 SLIST_FOREACH(output, outputs, slist) {
1716 if (strcasecmp(output->name, tray_output) == 0 ||
1717 (strcasecmp(tray_output, "primary") == 0 && output->primary)) {
1722 tray_configured = true;
1725 /* We already have a bar, so we just reconfigure it */
1726 mask = XCB_CONFIG_WINDOW_X |
1727 XCB_CONFIG_WINDOW_Y |
1728 XCB_CONFIG_WINDOW_WIDTH |
1729 XCB_CONFIG_WINDOW_HEIGHT |
1730 XCB_CONFIG_WINDOW_STACK_MODE;
1731 values[0] = walk->rect.x;
1732 if (config.position == POS_TOP)
1733 values[1] = walk->rect.y;
1735 values[1] = walk->rect.y + walk->rect.h - bar_height;
1736 values[2] = walk->rect.w;
1737 values[3] = bar_height;
1738 values[4] = XCB_STACK_MODE_ABOVE;
1740 DLOG("Reconfiguring strut partial property for output %s\n", walk->name);
1741 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1743 DLOG("Destroying buffer for output %s\n", walk->name);
1744 xcb_free_pixmap(xcb_connection, walk->buffer);
1746 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
1747 xcb_void_cookie_t cfg_cookie = xcb_configure_window_checked(xcb_connection,
1752 mask = XCB_CW_OVERRIDE_REDIRECT;
1753 values[0] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1754 DLOG("Changing window attribute override_redirect for output %s to %d\n", walk->name, values[0]);
1755 xcb_void_cookie_t chg_cookie = xcb_change_window_attributes(xcb_connection,
1760 DLOG("Recreating buffer for output %s\n", walk->name);
1761 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1762 root_screen->root_depth,
1768 xcb_void_cookie_t map_cookie, umap_cookie;
1770 /* Unmap the window, and draw it again when in dock mode */
1771 umap_cookie = xcb_unmap_window_checked(xcb_connection, walk->bar);
1772 if (config.hide_on_modifier == M_DOCK) {
1774 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar);
1779 if (config.hide_on_modifier == M_HIDE) {
1780 /* Switching to hide mode, register for keyevents */
1781 register_xkb_keyevents();
1783 /* Switching to dock/invisible mode, deregister from keyevents */
1784 deregister_xkb_keyevents();
1788 if (xcb_request_failed(cfg_cookie, "Could not reconfigure window") ||
1789 xcb_request_failed(chg_cookie, "Could not change window") ||
1790 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1791 xcb_request_failed(strut_cookie, "Could not set strut") ||
1792 (redraw_bars && (xcb_request_failed(umap_cookie, "Could not unmap window") ||
1793 (config.hide_on_modifier == M_DOCK && xcb_request_failed(map_cookie, "Could not map window"))))) {
1801 * Render the bars, with buttons and statusline
1804 void draw_bars(bool unhide) {
1805 DLOG("Drawing bars...\n");
1806 int workspace_width = 0;
1807 /* Is the currently-rendered statusline using short_text items? */
1808 bool rendered_statusline_is_short = false;
1810 refresh_statusline(false);
1812 i3_output *outputs_walk;
1813 SLIST_FOREACH(outputs_walk, outputs, slist) {
1814 if (!outputs_walk->active) {
1815 DLOG("Output %s inactive, skipping...\n", outputs_walk->name);
1818 if (outputs_walk->bar == XCB_NONE) {
1819 /* Oh shit, an active output without an own bar. Create it now! */
1820 reconfig_windows(false);
1822 /* First things first: clear the backbuffer */
1823 uint32_t color = colors.bar_bg;
1824 xcb_change_gc(xcb_connection,
1825 outputs_walk->bargc,
1828 xcb_rectangle_t rect = {0, 0, outputs_walk->rect.w, bar_height};
1829 xcb_poly_fill_rectangle(xcb_connection,
1830 outputs_walk->buffer,
1831 outputs_walk->bargc,
1835 if (!config.disable_ws) {
1837 TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
1838 DLOG("Drawing button for WS %s at x = %d, len = %d\n",
1839 i3string_as_utf8(ws_walk->name), workspace_width, ws_walk->name_width);
1840 uint32_t fg_color = colors.inactive_ws_fg;
1841 uint32_t bg_color = colors.inactive_ws_bg;
1842 uint32_t border_color = colors.inactive_ws_border;
1843 if (ws_walk->visible) {
1844 if (!ws_walk->focused) {
1845 fg_color = colors.active_ws_fg;
1846 bg_color = colors.active_ws_bg;
1847 border_color = colors.active_ws_border;
1849 fg_color = colors.focus_ws_fg;
1850 bg_color = colors.focus_ws_bg;
1851 border_color = colors.focus_ws_border;
1854 if (ws_walk->urgent) {
1855 DLOG("WS %s is urgent!\n", i3string_as_utf8(ws_walk->name));
1856 fg_color = colors.urgent_ws_fg;
1857 bg_color = colors.urgent_ws_bg;
1858 border_color = colors.urgent_ws_border;
1861 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
1862 uint32_t vals_border[] = {border_color, border_color};
1863 xcb_change_gc(xcb_connection,
1864 outputs_walk->bargc,
1867 xcb_rectangle_t rect_border = {workspace_width,
1869 ws_walk->name_width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1870 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1)};
1871 xcb_poly_fill_rectangle(xcb_connection,
1872 outputs_walk->buffer,
1873 outputs_walk->bargc,
1876 uint32_t vals[] = {bg_color, bg_color};
1877 xcb_change_gc(xcb_connection,
1878 outputs_walk->bargc,
1881 xcb_rectangle_t rect = {workspace_width + logical_px(1),
1883 ws_walk->name_width + 2 * logical_px(ws_hoff_px),
1884 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1)};
1885 xcb_poly_fill_rectangle(xcb_connection,
1886 outputs_walk->buffer,
1887 outputs_walk->bargc,
1890 set_font_colors(outputs_walk->bargc, fg_color, bg_color);
1891 draw_text(ws_walk->name, outputs_walk->buffer, outputs_walk->bargc,
1892 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1893 logical_px(ws_voff_px),
1894 ws_walk->name_width);
1896 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
1897 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
1898 workspace_width += logical_px(ws_spacing_px);
1902 if (binding.name && !config.disable_binding_mode_indicator) {
1903 workspace_width += logical_px(ws_spacing_px);
1905 uint32_t fg_color = colors.binding_mode_fg;
1906 uint32_t bg_color = colors.binding_mode_bg;
1907 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
1909 uint32_t vals_border[] = {colors.binding_mode_border, colors.binding_mode_border};
1910 xcb_change_gc(xcb_connection,
1911 outputs_walk->bargc,
1914 xcb_rectangle_t rect_border = {workspace_width,
1916 binding.width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1917 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1)};
1918 xcb_poly_fill_rectangle(xcb_connection,
1919 outputs_walk->buffer,
1920 outputs_walk->bargc,
1924 uint32_t vals[] = {bg_color, bg_color};
1925 xcb_change_gc(xcb_connection,
1926 outputs_walk->bargc,
1929 xcb_rectangle_t rect = {workspace_width + logical_px(1),
1931 binding.width + 2 * logical_px(ws_hoff_px),
1932 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1)};
1933 xcb_poly_fill_rectangle(xcb_connection,
1934 outputs_walk->buffer,
1935 outputs_walk->bargc,
1939 set_font_colors(outputs_walk->bargc, fg_color, bg_color);
1940 draw_text(binding.name,
1941 outputs_walk->buffer,
1942 outputs_walk->bargc,
1943 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1944 logical_px(ws_voff_px),
1948 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + binding.width;
1951 if (!TAILQ_EMPTY(&statusline_head)) {
1952 DLOG("Printing statusline!\n");
1954 int tray_width = get_tray_width(outputs_walk->trayclients);
1955 uint32_t max_statusline_width = outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px);
1957 /* If the statusline is too long, try to use short texts. */
1958 if (statusline_width > max_statusline_width) {
1959 /* If the currently rendered statusline is long, render a short status line */
1960 refresh_statusline(true);
1961 rendered_statusline_is_short = true;
1962 } else if (rendered_statusline_is_short) {
1963 /* If the currently rendered statusline is short, render a long status line */
1964 refresh_statusline(false);
1965 rendered_statusline_is_short = false;
1968 /* Luckily we already prepared a seperate pixmap containing the rendered
1969 * statusline, we just have to copy the relevant parts to the relevant
1971 int visible_statusline_width = MIN(statusline_width, max_statusline_width);
1972 xcb_copy_area(xcb_connection,
1974 outputs_walk->buffer,
1975 outputs_walk->bargc,
1976 (int16_t)(statusline_width - visible_statusline_width), 0,
1977 (int16_t)(outputs_walk->rect.w - tray_width - logical_px(sb_hoff_px) - visible_statusline_width), 0,
1978 (int16_t)visible_statusline_width, (int16_t)bar_height);
1981 workspace_width = 0;
1984 /* Assure the bar is hidden/unhidden according to the specified hidden_state and mode */
1986 config.hidden_state == S_SHOW ||
1989 } else if (config.hide_on_modifier == M_HIDE) {
1997 * Redraw the bars, i.e. simply copy the buffer to the barwindow
2000 void redraw_bars(void) {
2001 i3_output *outputs_walk;
2002 SLIST_FOREACH(outputs_walk, outputs, slist) {
2003 if (!outputs_walk->active) {
2006 xcb_copy_area(xcb_connection,
2007 outputs_walk->buffer,
2009 outputs_walk->bargc,
2012 outputs_walk->rect.w,
2013 outputs_walk->rect.h);
2014 xcb_flush(xcb_connection);
2019 * Set the current binding mode
2022 void set_current_mode(struct mode *current) {
2023 I3STRING_FREE(binding.name);
2025 activated_mode = binding.name != NULL;