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>
33 #include <cairo/cairo-xcb.h>
38 /* We save the atoms in an easy to access array, indexed by an enum */
40 #define ATOM_DO(name) name,
41 #include "xcb_atoms.def"
45 xcb_intern_atom_cookie_t atom_cookies[NUM_ATOMS];
46 xcb_atom_t atoms[NUM_ATOMS];
48 /* Variables, that are the same for all functions at all times */
49 xcb_connection_t *xcb_connection;
51 xcb_screen_t *root_screen;
52 xcb_window_t xcb_root;
54 /* selection window for tray support */
55 static xcb_window_t selwin = XCB_NONE;
56 static xcb_intern_atom_reply_t *tray_reply = NULL;
58 /* This is needed for integration with libi3 */
59 xcb_connection_t *conn;
61 /* The font we'll use */
64 /* Icon size (based on font size) */
67 xcb_visualtype_t *visual_type;
69 xcb_colormap_t colormap;
71 /* Overall height of the bar (based on font size) */
74 /* These are only relevant for XKB, which we only need for grabbing modifiers */
78 /* Because the statusline is the same on all outputs, we have
79 * global buffer to render it on */
80 surface_t statusline_surface;
81 uint32_t statusline_width;
83 /* Event watchers, to interact with the user */
89 /* The name of current binding mode */
92 /* Indicates whether a new binding mode was recently activated */
93 bool activated_mode = false;
95 /* The parsed colors */
100 color_t active_ws_fg;
101 color_t active_ws_bg;
102 color_t active_ws_border;
103 color_t inactive_ws_fg;
104 color_t inactive_ws_bg;
105 color_t inactive_ws_border;
106 color_t urgent_ws_bg;
107 color_t urgent_ws_fg;
108 color_t urgent_ws_border;
111 color_t focus_ws_border;
112 color_t binding_mode_bg;
113 color_t binding_mode_fg;
114 color_t binding_mode_border;
116 struct xcb_colors_t colors;
118 /* Horizontal offset between a workspace label and button borders */
119 static const int ws_hoff_px = 4;
121 /* Vertical offset between a workspace label and button borders */
122 static const int ws_voff_px = 3;
124 /* Offset between two workspace buttons */
125 static const int ws_spacing_px = 1;
127 /* Offset between the statusline and 1) workspace buttons on the left
128 * 2) the tray or screen edge on the right */
129 static const int sb_hoff_px = 4;
131 /* Additional offset between the tray and the statusline, if the tray is not empty */
132 static const int tray_loff_px = 2;
134 /* Vertical offset between the bar and a separator */
135 static const int sep_voff_px = 4;
137 int _xcb_request_failed(xcb_void_cookie_t cookie, char *err_msg, int line) {
138 xcb_generic_error_t *err;
139 if ((err = xcb_request_check(xcb_connection, cookie)) != NULL) {
140 fprintf(stderr, "[%s:%d] ERROR: %s. X Error Code: %d\n", __FILE__, line, err_msg, err->error_code);
141 return err->error_code;
146 uint32_t get_sep_offset(struct status_block *block) {
147 if (!block->no_separator && block->sep_block_width > 0)
148 return block->sep_block_width / 2 + block->sep_block_width % 2;
152 int get_tray_width(struct tc_head *trayclients) {
153 trayclient *trayclient;
155 TAILQ_FOREACH_REVERSE(trayclient, trayclients, tc_head, tailq) {
156 if (!trayclient->mapped)
158 tray_width += icon_size + logical_px(config.tray_padding);
161 tray_width += logical_px(tray_loff_px);
166 * Draws a separator for the given block if necessary.
169 static void draw_separator(uint32_t x, struct status_block *block) {
170 uint32_t sep_offset = get_sep_offset(block);
171 if (TAILQ_NEXT(block, blocks) == NULL || sep_offset == 0)
174 uint32_t center_x = x - sep_offset;
175 if (config.separator_symbol == NULL) {
176 /* Draw a classic one pixel, vertical separator. */
177 cairo_save(statusline_surface.cr);
178 cairo_set_operator(statusline_surface.cr, CAIRO_OPERATOR_SOURCE);
179 cairo_set_source_color(&statusline_surface, colors.sep_fg);
180 cairo_rectangle(statusline_surface.cr, center_x, logical_px(sep_voff_px), logical_px(1), bar_height - 2 * logical_px(sep_voff_px));
181 cairo_fill(statusline_surface.cr);
182 cairo_surface_flush(statusline_surface.surface);
183 cairo_restore(statusline_surface.cr);
185 /* Draw a custom separator. */
186 uint32_t separator_x = MAX(x - block->sep_block_width, center_x - separator_symbol_width / 2);
187 cairo_draw_text(config.separator_symbol, &statusline_surface, colors.sep_fg, colors.bar_bg,
188 separator_x, logical_px(ws_voff_px), x - separator_x);
193 * Redraws the statusline to the buffer
196 void refresh_statusline(bool use_short_text) {
197 struct status_block *block;
199 uint32_t old_statusline_width = statusline_width;
200 statusline_width = 0;
202 /* Predict the text width of all blocks (in pixels). */
203 TAILQ_FOREACH(block, &statusline_head, blocks) {
204 /* Try to use the shorter text if necessary and possible. */
205 if (use_short_text && block->short_text != NULL) {
206 I3STRING_FREE(block->full_text);
207 block->full_text = i3string_copy(block->short_text);
210 if (i3string_get_num_bytes(block->full_text) == 0)
213 block->width = predict_text_width(block->full_text);
215 /* Compute offset and append for text aligment in min_width. */
216 if (block->min_width <= block->width) {
220 uint32_t padding_width = block->min_width - block->width;
221 switch (block->align) {
223 block->x_append = padding_width;
226 block->x_offset = padding_width;
229 block->x_offset = padding_width / 2;
230 block->x_append = padding_width / 2 + padding_width % 2;
235 /* If this is not the last block, add some pixels for a separator. */
236 if (TAILQ_NEXT(block, blocks) != NULL)
237 statusline_width += block->sep_block_width;
239 statusline_width += block->width + block->x_offset + block->x_append;
242 /* If the statusline is bigger than our screen we need to make sure that
243 * the pixmap provides enough space, so re-allocate if the width grew */
244 if (statusline_width > root_screen->width_in_pixels &&
245 statusline_width > old_statusline_width)
248 /* Clear the statusline pixmap. */
249 cairo_save(statusline_surface.cr);
250 cairo_set_source_color(&statusline_surface, colors.bar_bg);
251 cairo_set_operator(statusline_surface.cr, CAIRO_OPERATOR_SOURCE);
252 cairo_paint(statusline_surface.cr);
253 cairo_surface_flush(statusline_surface.surface);
254 cairo_restore(statusline_surface.cr);
256 /* Draw the text of each block. */
258 TAILQ_FOREACH(block, &statusline_head, blocks) {
259 if (i3string_get_num_bytes(block->full_text) == 0)
263 /* If this block is urgent, draw it with the defined color and border. */
265 fg_color = colors.urgent_ws_fg;
267 /* Draw the background */
268 cairo_set_source_color(&statusline_surface, colors.urgent_ws_bg);
269 cairo_rectangle(statusline_surface.cr, x - logical_px(2), logical_px(1), block->width + logical_px(4), bar_height - logical_px(2));
270 cairo_fill(statusline_surface.cr);
271 cairo_surface_flush(statusline_surface.surface);
273 fg_color = (block->color ? cairo_hex_to_color(block->color) : colors.bar_fg);
276 cairo_draw_text(block->full_text, &statusline_surface, fg_color, colors.bar_bg,
277 x + block->x_offset, logical_px(ws_voff_px), block->width);
278 x += block->width + block->sep_block_width + block->x_offset + block->x_append;
280 /* If this is not the last block, draw a separator. */
281 draw_separator(x, block);
286 * Hides all bars (unmaps them)
289 void hide_bars(void) {
290 if ((config.hide_on_modifier == M_DOCK) || (config.hidden_state == S_SHOW && config.hide_on_modifier == M_HIDE)) {
295 SLIST_FOREACH(walk, outputs, slist) {
299 xcb_unmap_window(xcb_connection, walk->bar.id);
305 * Unhides all bars (maps them)
308 void unhide_bars(void) {
309 if (config.hide_on_modifier != M_HIDE) {
314 xcb_void_cookie_t cookie;
320 SLIST_FOREACH(walk, outputs, slist) {
321 if (walk->bar.id == XCB_NONE) {
324 mask = XCB_CONFIG_WINDOW_X |
325 XCB_CONFIG_WINDOW_Y |
326 XCB_CONFIG_WINDOW_WIDTH |
327 XCB_CONFIG_WINDOW_HEIGHT |
328 XCB_CONFIG_WINDOW_STACK_MODE;
329 values[0] = walk->rect.x;
330 if (config.position == POS_TOP)
331 values[1] = walk->rect.y;
333 values[1] = walk->rect.y + walk->rect.h - bar_height;
334 values[2] = walk->rect.w;
335 values[3] = bar_height;
336 values[4] = XCB_STACK_MODE_ABOVE;
337 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
338 cookie = xcb_configure_window_checked(xcb_connection,
343 if (xcb_request_failed(cookie, "Could not reconfigure window")) {
346 xcb_map_window(xcb_connection, walk->bar.id);
351 * Parse the colors into a format that we can use
354 void init_colors(const struct xcb_color_strings_t *new_colors) {
355 #define PARSE_COLOR(name, def) \
357 colors.name = cairo_hex_to_color(new_colors->name ? new_colors->name : def); \
359 PARSE_COLOR(bar_fg, "#FFFFFF");
360 PARSE_COLOR(bar_bg, "#000000");
361 PARSE_COLOR(sep_fg, "#666666");
362 PARSE_COLOR(active_ws_fg, "#FFFFFF");
363 PARSE_COLOR(active_ws_bg, "#333333");
364 PARSE_COLOR(active_ws_border, "#333333");
365 PARSE_COLOR(inactive_ws_fg, "#888888");
366 PARSE_COLOR(inactive_ws_bg, "#222222");
367 PARSE_COLOR(inactive_ws_border, "#333333");
368 PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
369 PARSE_COLOR(urgent_ws_bg, "#900000");
370 PARSE_COLOR(urgent_ws_border, "#2f343a");
371 PARSE_COLOR(focus_ws_fg, "#FFFFFF");
372 PARSE_COLOR(focus_ws_bg, "#285577");
373 PARSE_COLOR(focus_ws_border, "#4c7899");
376 #define PARSE_COLOR_FALLBACK(name, fallback) \
378 colors.name = new_colors->name ? cairo_hex_to_color(new_colors->name) : colors.fallback; \
381 /* For the binding mode indicator colors, we don't hardcode a default.
382 * Instead, we fall back to urgent_ws_* colors. */
383 PARSE_COLOR_FALLBACK(binding_mode_fg, urgent_ws_fg);
384 PARSE_COLOR_FALLBACK(binding_mode_bg, urgent_ws_bg);
385 PARSE_COLOR_FALLBACK(binding_mode_border, urgent_ws_border);
386 #undef PARSE_COLOR_FALLBACK
389 xcb_flush(xcb_connection);
393 * Handle a button press event (i.e. a mouse click on one of our bars).
394 * We determine, whether the click occured on a workspace button or if the scroll-
395 * wheel was used and change the workspace appropriately
398 void handle_button(xcb_button_press_event_t *event) {
399 /* Determine, which bar was clicked */
401 xcb_window_t bar = event->event;
402 SLIST_FOREACH(walk, outputs, slist) {
403 if (walk->bar.id == bar) {
409 DLOG("Unknown bar clicked!\n");
413 int32_t x = event->event_x >= 0 ? event->event_x : 0;
414 int32_t original_x = x;
416 DLOG("Got button %d\n", event->detail);
418 int workspace_width = 0;
419 i3_ws *cur_ws = NULL, *clicked_ws = NULL, *ws_walk;
421 TAILQ_FOREACH(ws_walk, walk->workspaces, tailq) {
422 int w = 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
423 if (x >= workspace_width && x <= workspace_width + w)
424 clicked_ws = ws_walk;
425 if (ws_walk->visible)
427 workspace_width += w;
428 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
429 workspace_width += logical_px(ws_spacing_px);
432 if (x > workspace_width && child_want_click_events()) {
433 /* If the child asked for click events,
434 * check if a status block has been clicked. */
435 int tray_width = get_tray_width(walk->trayclients);
436 int block_x = 0, last_block_x;
437 int offset = walk->rect.w - statusline_width - tray_width - logical_px(sb_hoff_px);
439 x = original_x - offset;
440 if (x >= 0 && (size_t)x < statusline_width) {
441 struct status_block *block;
442 int sep_offset_remainder = 0;
444 TAILQ_FOREACH(block, &statusline_head, blocks) {
445 if (i3string_get_num_bytes(block->full_text) == 0)
448 last_block_x = block_x;
449 block_x += block->width + block->x_offset + block->x_append + get_sep_offset(block) + sep_offset_remainder;
451 if (x <= block_x && x >= last_block_x) {
452 send_block_clicked(event->detail, block->name, block->instance, event->root_x, event->root_y);
456 sep_offset_remainder = block->sep_block_width - get_sep_offset(block);
462 /* If a custom command was specified for this mouse button, it overrides
463 * the default behavior. */
465 TAILQ_FOREACH(binding, &(config.bindings), bindings) {
466 if (binding->input_code != event->detail)
469 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, binding->command);
473 if (cur_ws == NULL) {
474 DLOG("No workspace active?\n");
477 switch (event->detail) {
479 /* Mouse wheel up. We select the previous ws, if any.
480 * If there is no more workspace, don’t even send the workspace
481 * command, otherwise (with workspace auto_back_and_forth) we’d end
482 * up on the wrong workspace. */
483 if (cur_ws == TAILQ_FIRST(walk->workspaces))
486 cur_ws = TAILQ_PREV(cur_ws, ws_head, tailq);
489 /* Mouse wheel down. We select the next ws, if any.
490 * If there is no more workspace, don’t even send the workspace
491 * command, otherwise (with workspace auto_back_and_forth) we’d end
492 * up on the wrong workspace. */
493 if (cur_ws == TAILQ_LAST(walk->workspaces, ws_head))
496 cur_ws = TAILQ_NEXT(cur_ws, tailq);
501 /* if no workspace was clicked, focus our currently visible
502 * workspace if it is not already focused */
503 if (cur_ws == NULL) {
504 TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
505 if (cur_ws->visible && !cur_ws->focused)
510 /* if there is nothing to focus, we are done */
519 /* To properly handle workspace names with double quotes in them, we need
520 * to escape the double quotes. Unfortunately, that’s rather ugly in C: We
521 * first count the number of double quotes, then we allocate a large enough
522 * buffer, then we copy character by character. */
525 const char *utf8_name = cur_ws->canonical_name;
526 for (const char *walk = utf8_name; *walk != '\0'; walk++) {
527 if (*walk == '"' || *walk == '\\')
529 /* While we’re looping through the name anyway, we can save one
534 const size_t len = namelen + strlen("workspace \"\"") + 1;
535 char *buffer = scalloc(len + num_quotes, 1);
536 strncpy(buffer, "workspace \"", strlen("workspace \""));
537 size_t inpos, outpos;
538 for (inpos = 0, outpos = strlen("workspace \"");
541 if (utf8_name[inpos] == '"' || utf8_name[inpos] == '\\') {
542 buffer[outpos] = '\\';
545 buffer[outpos] = utf8_name[inpos];
547 buffer[outpos] = '"';
548 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, buffer);
553 * Handle visibility notifications: when none of the bars are visible, e.g.
554 * if windows are in fullscreen on each output, suspend the child process.
557 static void handle_visibility_notify(xcb_visibility_notify_event_t *event) {
558 bool visible = (event->state != XCB_VISIBILITY_FULLY_OBSCURED);
562 SLIST_FOREACH(output, outputs, slist) {
563 if (!output->active) {
566 if (output->bar.id == event->window) {
567 if (output->visible == visible) {
570 output->visible = visible;
572 num_visible += output->visible;
575 if (num_visible == 0) {
577 } else if (num_visible == visible) {
578 /* Wake the child only when transitioning from 0 to 1 visible bar.
579 * We cannot transition from 0 to 2 or more visible bars at once since
580 * visibility events are delivered to each window separately */
586 * Adjusts the size of the tray window and alignment of the tray clients by
587 * configuring their respective x coordinates. To be called when mapping or
588 * unmapping a tray client window.
591 static void configure_trayclients(void) {
592 trayclient *trayclient;
594 SLIST_FOREACH(output, outputs, slist) {
599 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
600 if (!trayclient->mapped)
604 DLOG("Configuring tray window %08x to x=%d\n",
605 trayclient->win, output->rect.w - (clients * (icon_size + logical_px(config.tray_padding))));
606 uint32_t x = output->rect.w - (clients * (icon_size + logical_px(config.tray_padding)));
607 xcb_configure_window(xcb_connection,
616 * Handles ClientMessages (messages sent from another client directly to us).
618 * At the moment, only the tray window will receive client messages. All
619 * supported client messages currently are _NET_SYSTEM_TRAY_OPCODE.
622 static void handle_client_message(xcb_client_message_event_t *event) {
623 if (event->type == atoms[_NET_SYSTEM_TRAY_OPCODE] &&
624 event->format == 32) {
625 DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
626 /* event->data.data32[0] is the timestamp */
627 uint32_t op = event->data.data32[1];
630 if (op == SYSTEM_TRAY_REQUEST_DOCK) {
631 xcb_window_t client = event->data.data32[2];
633 /* Listen for PropertyNotify events to get the most recent value of
634 * the XEMBED_MAPPED atom, also listen for UnmapNotify events */
635 mask = XCB_CW_EVENT_MASK;
636 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
637 XCB_EVENT_MASK_STRUCTURE_NOTIFY;
638 xcb_change_window_attributes(xcb_connection,
643 /* Request the _XEMBED_INFO property. The XEMBED specification
644 * (which is referred by the tray specification) says this *has* to
645 * be set, but VLC does not set it… */
648 xcb_get_property_cookie_t xembedc;
649 xcb_generic_error_t *error;
650 xembedc = xcb_get_property(xcb_connection,
654 XCB_GET_PROPERTY_TYPE_ANY,
658 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
662 ELOG("Error getting _XEMBED_INFO property: error_code %d\n",
667 if (xembedr != NULL && xembedr->length != 0) {
668 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
669 uint32_t *xembed = xcb_get_property_value(xembedr);
670 DLOG("xembed version = %d\n", xembed[0]);
671 DLOG("xembed flags = %d\n", xembed[1]);
672 map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
673 xe_version = xembed[0];
678 ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
681 DLOG("X window %08x requested docking\n", client);
682 i3_output *walk, *output = NULL;
683 SLIST_FOREACH(walk, outputs, slist) {
686 if (config.tray_output) {
687 if ((strcasecmp(walk->name, config.tray_output) != 0) &&
688 (!walk->primary || strcasecmp("primary", config.tray_output) != 0))
692 DLOG("using output %s\n", walk->name);
696 /* In case of tray_output == primary and there is no primary output
697 * configured, we fall back to the first available output. */
698 if (output == NULL &&
699 config.tray_output &&
700 strcasecmp("primary", config.tray_output) == 0) {
701 SLIST_FOREACH(walk, outputs, slist) {
704 DLOG("Falling back to output %s because no primary output is configured\n", walk->name);
709 if (output == NULL) {
710 ELOG("No output found\n");
714 xcb_void_cookie_t rcookie = xcb_reparent_window(xcb_connection,
717 output->rect.w - icon_size - logical_px(config.tray_padding),
718 logical_px(config.tray_padding));
719 if (xcb_request_failed(rcookie, "Could not reparent window. Maybe it is using an incorrect depth/visual?"))
722 /* We reconfigure the window to use a reasonable size. The systray
723 * specification explicitly says:
724 * Tray icons may be assigned any size by the system tray, and
725 * should do their best to cope with any size effectively
727 mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
728 values[0] = icon_size;
729 values[1] = icon_size;
730 xcb_configure_window(xcb_connection,
735 /* send the XEMBED_EMBEDDED_NOTIFY message */
736 void *event = scalloc(32, 1);
737 xcb_client_message_event_t *ev = event;
738 ev->response_type = XCB_CLIENT_MESSAGE;
740 ev->type = atoms[_XEMBED];
742 ev->data.data32[0] = XCB_CURRENT_TIME;
743 ev->data.data32[1] = atoms[XEMBED_EMBEDDED_NOTIFY];
744 ev->data.data32[2] = output->bar.id;
745 ev->data.data32[3] = xe_version;
746 xcb_send_event(xcb_connection,
749 XCB_EVENT_MASK_NO_EVENT,
753 /* Put the client inside the save set. Upon termination (whether
754 * killed or normal exit does not matter) of i3bar, these clients
755 * will be correctly reparented to their most closest living
756 * ancestor. Without this, tray icons might die when i3bar
758 xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
760 trayclient *tc = smalloc(sizeof(trayclient));
762 tc->xe_version = xe_version;
764 TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
767 DLOG("Mapping dock client\n");
768 xcb_map_window(xcb_connection, client);
770 DLOG("Not mapping dock client yet\n");
772 /* Trigger an update to copy the statusline text to the appropriate
774 configure_trayclients();
781 * Handles DestroyNotify events by removing the tray client from the data
782 * structure. According to the XEmbed protocol, this is one way for a tray
783 * client to finish the protocol. After this event is received, there is no
784 * further interaction with the tray client.
786 * See: http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
789 static void handle_destroy_notify(xcb_destroy_notify_event_t *event) {
790 DLOG("DestroyNotify for window = %08x, event = %08x\n", event->window, event->event);
793 SLIST_FOREACH(walk, outputs, slist) {
796 DLOG("checking output %s\n", walk->name);
797 trayclient *trayclient;
798 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
799 if (trayclient->win != event->window)
802 DLOG("Removing tray client with window ID %08x\n", event->window);
803 TAILQ_REMOVE(walk->trayclients, trayclient, tailq);
805 /* Trigger an update, we now have more space for the statusline */
806 configure_trayclients();
814 * Handles MapNotify events. These events happen when a tray client shows its
815 * window. We respond by realigning the tray clients.
818 static void handle_map_notify(xcb_map_notify_event_t *event) {
819 DLOG("MapNotify for window = %08x, event = %08x\n", event->window, event->event);
822 SLIST_FOREACH(walk, outputs, slist) {
825 DLOG("checking output %s\n", walk->name);
826 trayclient *trayclient;
827 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
828 if (trayclient->win != event->window)
831 DLOG("Tray client mapped (window ID %08x). Adjusting tray.\n", event->window);
832 trayclient->mapped = true;
834 /* Trigger an update, we now have more space for the statusline */
835 configure_trayclients();
842 * Handles UnmapNotify events. These events happen when a tray client hides its
843 * window. We respond by realigning the tray clients.
846 static void handle_unmap_notify(xcb_unmap_notify_event_t *event) {
847 DLOG("UnmapNotify for window = %08x, event = %08x\n", event->window, event->event);
850 SLIST_FOREACH(walk, outputs, slist) {
853 DLOG("checking output %s\n", walk->name);
854 trayclient *trayclient;
855 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
856 if (trayclient->win != event->window)
859 DLOG("Tray client unmapped (window ID %08x). Adjusting tray.\n", event->window);
860 trayclient->mapped = false;
862 /* Trigger an update, we now have more space for the statusline */
863 configure_trayclients();
871 * Handle PropertyNotify messages. Currently only the _XEMBED_INFO property is
872 * handled, which tells us whether a dock client should be mapped or unmapped.
875 static void handle_property_notify(xcb_property_notify_event_t *event) {
876 DLOG("PropertyNotify\n");
877 if (event->atom == atoms[_XEMBED_INFO] &&
878 event->state == XCB_PROPERTY_NEW_VALUE) {
879 DLOG("xembed_info updated\n");
880 trayclient *trayclient = NULL, *walk;
882 SLIST_FOREACH(o_walk, outputs, slist) {
886 TAILQ_FOREACH(walk, o_walk->trayclients, tailq) {
887 if (walk->win != event->window)
897 ELOG("PropertyNotify received for unknown window %08x\n",
901 xcb_get_property_cookie_t xembedc;
902 xembedc = xcb_get_property_unchecked(xcb_connection,
906 XCB_GET_PROPERTY_TYPE_ANY,
910 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
913 if (xembedr == NULL || xembedr->length == 0) {
914 DLOG("xembed_info unset\n");
918 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
919 uint32_t *xembed = xcb_get_property_value(xembedr);
920 DLOG("xembed version = %d\n", xembed[0]);
921 DLOG("xembed flags = %d\n", xembed[1]);
922 bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
923 DLOG("map state now %d\n", map_it);
924 if (trayclient->mapped && !map_it) {
925 /* need to unmap the window */
926 xcb_unmap_window(xcb_connection, trayclient->win);
927 } else if (!trayclient->mapped && map_it) {
928 /* need to map the window */
929 xcb_map_window(xcb_connection, trayclient->win);
936 * Handle ConfigureRequests by denying them and sending the client a
937 * ConfigureNotify with its actual size.
940 static void handle_configure_request(xcb_configure_request_event_t *event) {
941 DLOG("ConfigureRequest for window = %08x\n", event->window);
943 trayclient *trayclient;
945 SLIST_FOREACH(output, outputs, slist) {
950 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
951 if (!trayclient->mapped)
955 if (trayclient->win != event->window)
958 xcb_rectangle_t rect;
959 rect.x = output->rect.w - (clients * (icon_size + logical_px(config.tray_padding)));
960 rect.y = logical_px(config.tray_padding);
961 rect.width = icon_size;
962 rect.height = icon_size;
964 DLOG("This is a tray window. x = %d\n", rect.x);
965 fake_configure_notify(xcb_connection, rect, event->window, 0);
970 DLOG("WARNING: Could not find corresponding tray window.\n");
974 * This function is called immediately before the main loop locks. We flush xcb
975 * then (and only then)
978 void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
979 xcb_flush(xcb_connection);
983 * This function is called immediately after the main loop locks, so when one
984 * of the watchers registered an event.
985 * We check whether an X-Event arrived and handle it.
988 void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
989 xcb_generic_event_t *event;
991 if (xcb_connection_has_error(xcb_connection)) {
992 ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
996 while ((event = xcb_poll_for_event(xcb_connection)) != NULL) {
997 int type = (event->response_type & ~0x80);
999 if (type == xkb_base && xkb_base > -1) {
1000 DLOG("received an xkb event\n");
1002 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
1003 if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
1004 int modstate = state->mods & config.modifier;
1006 #define DLOGMOD(modmask, status) \
1008 switch (modmask) { \
1010 DLOG("ShiftMask got " #status "!\n"); \
1013 DLOG("ControlMask got " #status "!\n"); \
1016 DLOG("Mod1Mask got " #status "!\n"); \
1019 DLOG("Mod2Mask got " #status "!\n"); \
1022 DLOG("Mod3Mask got " #status "!\n"); \
1025 DLOG("Mod4Mask got " #status "!\n"); \
1028 DLOG("Mod5Mask got " #status "!\n"); \
1033 if (modstate != mod_pressed) {
1034 if (modstate == 0) {
1035 DLOGMOD(config.modifier, released);
1036 if (!activated_mode)
1039 DLOGMOD(config.modifier, pressed);
1040 activated_mode = false;
1043 mod_pressed = modstate;
1053 case XCB_VISIBILITY_NOTIFY:
1054 /* Visibility change: a bar is [un]obscured by other window */
1055 handle_visibility_notify((xcb_visibility_notify_event_t *)event);
1058 /* Expose-events happen, when the window needs to be redrawn */
1061 case XCB_BUTTON_PRESS:
1062 /* Button press events are mouse buttons clicked on one of our bars */
1063 handle_button((xcb_button_press_event_t *)event);
1065 case XCB_CLIENT_MESSAGE:
1066 /* Client messages are used for client-to-client communication, for
1067 * example system tray widgets talk to us directly via client messages. */
1068 handle_client_message((xcb_client_message_event_t *)event);
1070 case XCB_DESTROY_NOTIFY:
1071 /* DestroyNotify signifies the end of the XEmbed protocol */
1072 handle_destroy_notify((xcb_destroy_notify_event_t *)event);
1074 case XCB_UNMAP_NOTIFY:
1075 /* UnmapNotify is received when a tray client hides its window. */
1076 handle_unmap_notify((xcb_unmap_notify_event_t *)event);
1078 case XCB_MAP_NOTIFY:
1079 handle_map_notify((xcb_map_notify_event_t *)event);
1081 case XCB_PROPERTY_NOTIFY:
1082 /* PropertyNotify */
1083 handle_property_notify((xcb_property_notify_event_t *)event);
1085 case XCB_CONFIGURE_REQUEST:
1086 /* ConfigureRequest, sent by a tray child */
1087 handle_configure_request((xcb_configure_request_event_t *)event);
1095 * Dummy callback. We only need this, so that the prepare and check watchers
1099 void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
1103 * Early initialization of the connection to X11: Everything which does not
1104 * depend on 'config'.
1107 char *init_xcb_early() {
1108 /* FIXME: xcb_connect leaks memory */
1109 xcb_connection = xcb_connect(NULL, &screen);
1110 if (xcb_connection_has_error(xcb_connection)) {
1111 ELOG("Cannot open display\n");
1114 conn = xcb_connection;
1115 DLOG("Connected to xcb\n");
1117 /* We have to request the atoms we need */
1118 #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
1119 #include "xcb_atoms.def"
1121 root_screen = xcb_aux_get_screen(xcb_connection, screen);
1122 xcb_root = root_screen->root;
1124 depth = root_screen->root_depth;
1125 colormap = root_screen->default_colormap;
1126 visual_type = xcb_aux_find_visual_by_attrs(root_screen, -1, 32);
1128 depth = xcb_aux_get_depth_of_visual(root_screen, visual_type->visual_id);
1129 colormap = xcb_generate_id(xcb_connection);
1130 xcb_void_cookie_t cm_cookie = xcb_create_colormap_checked(xcb_connection,
1131 XCB_COLORMAP_ALLOC_NONE,
1134 visual_type->visual_id);
1135 if (xcb_request_failed(cm_cookie, "Could not allocate colormap")) {
1139 visual_type = get_visualtype(root_screen);
1142 /* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
1143 * this way, we can choose to crop it */
1144 xcb_pixmap_t statusline_id = xcb_generate_id(xcb_connection);
1145 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1149 root_screen->width_in_pixels,
1150 root_screen->height_in_pixels);
1151 cairo_surface_init(&statusline_surface, statusline_id, root_screen->width_in_pixels, root_screen->height_in_pixels);
1153 /* The various watchers to communicate with xcb */
1154 xcb_io = smalloc(sizeof(ev_io));
1155 xcb_prep = smalloc(sizeof(ev_prepare));
1156 xcb_chk = smalloc(sizeof(ev_check));
1158 ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
1159 ev_prepare_init(xcb_prep, &xcb_prep_cb);
1160 ev_check_init(xcb_chk, &xcb_chk_cb);
1162 ev_io_start(main_loop, xcb_io);
1163 ev_prepare_start(main_loop, xcb_prep);
1164 ev_check_start(main_loop, xcb_chk);
1166 /* Now we get the atoms and save them in a nice data structure */
1169 char *path = root_atom_contents("I3_SOCKET_PATH", xcb_connection, screen);
1171 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer"))
1178 * Register for xkb keyevents. To grab modifiers without blocking other applications from receiving key events
1179 * involving that modifier, we sadly have to use xkb which is not yet fully supported
1183 void register_xkb_keyevents() {
1184 const xcb_query_extension_reply_t *extreply;
1185 extreply = xcb_get_extension_data(conn, &xcb_xkb_id);
1186 if (!extreply->present) {
1187 ELOG("xkb is not present on this server\n");
1190 DLOG("initializing xcb-xkb\n");
1191 xcb_xkb_use_extension(conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION);
1192 xcb_xkb_select_events(conn,
1193 XCB_XKB_ID_USE_CORE_KBD,
1194 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1196 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1200 xkb_base = extreply->first_event;
1204 * Deregister from xkb keyevents.
1207 void deregister_xkb_keyevents() {
1208 xcb_xkb_select_events(conn,
1209 XCB_XKB_ID_USE_CORE_KBD,
1219 * Initialization which depends on 'config' being usable. Called after the
1220 * configuration has arrived.
1223 void init_xcb_late(char *fontname) {
1224 if (fontname == NULL)
1225 fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
1228 font = load_font(fontname, true);
1230 DLOG("Calculated font height: %d\n", font.height);
1231 bar_height = font.height + 2 * logical_px(ws_voff_px);
1232 icon_size = bar_height - 2 * logical_px(config.tray_padding);
1234 if (config.separator_symbol)
1235 separator_symbol_width = predict_text_width(config.separator_symbol);
1237 xcb_flush(xcb_connection);
1239 if (config.hide_on_modifier == M_HIDE)
1240 register_xkb_keyevents();
1244 * Inform clients waiting for a new _NET_SYSTEM_TRAY that we took the
1248 static void send_tray_clientmessage(void) {
1249 uint8_t buffer[32] = {0};
1250 xcb_client_message_event_t *ev = (xcb_client_message_event_t *)buffer;
1252 ev->response_type = XCB_CLIENT_MESSAGE;
1253 ev->window = xcb_root;
1254 ev->type = atoms[MANAGER];
1256 ev->data.data32[0] = XCB_CURRENT_TIME;
1257 ev->data.data32[1] = tray_reply->atom;
1258 ev->data.data32[2] = selwin;
1260 xcb_send_event(xcb_connection,
1268 * Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
1269 * for the X11 display we are running on, then acquiring the selection for this
1270 * atom. Afterwards, tray clients will send ClientMessages to our window.
1273 void init_tray(void) {
1274 DLOG("Initializing system tray functionality\n");
1275 /* request the tray manager atom for the X11 display we are running on */
1276 char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
1277 snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
1278 xcb_intern_atom_cookie_t tray_cookie;
1279 if (tray_reply == NULL)
1280 tray_cookie = xcb_intern_atom(xcb_connection, 0, strlen(atomname), atomname);
1282 /* tray support: we need a window to own the selection */
1283 selwin = xcb_generate_id(xcb_connection);
1284 uint32_t selmask = XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_COLORMAP;
1285 uint32_t selval[] = {root_screen->black_pixel, root_screen->black_pixel, 1, colormap};
1286 xcb_create_window(xcb_connection,
1293 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1294 visual_type->visual_id,
1298 uint32_t orientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
1300 xcb_change_property(xcb_connection,
1301 XCB_PROP_MODE_REPLACE,
1303 atoms[_NET_SYSTEM_TRAY_ORIENTATION],
1308 xcb_change_property(xcb_connection,
1309 XCB_PROP_MODE_REPLACE,
1311 atoms[_NET_SYSTEM_TRAY_VISUAL],
1315 &visual_type->visual_id);
1319 if (tray_reply == NULL) {
1320 if (!(tray_reply = xcb_intern_atom_reply(xcb_connection, tray_cookie, NULL))) {
1321 ELOG("Could not get atom %s\n", atomname);
1326 xcb_set_selection_owner(xcb_connection,
1331 /* Verify that we have the selection */
1332 xcb_get_selection_owner_cookie_t selcookie;
1333 xcb_get_selection_owner_reply_t *selreply;
1335 selcookie = xcb_get_selection_owner(xcb_connection, tray_reply->atom);
1336 if (!(selreply = xcb_get_selection_owner_reply(xcb_connection, selcookie, NULL))) {
1337 ELOG("Could not get selection owner for %s\n", atomname);
1341 if (selreply->owner != selwin) {
1342 ELOG("Could not set the %s selection. "
1343 "Maybe another tray is already running?\n",
1345 /* NOTE that this error is not fatal. We just can’t provide tray
1351 send_tray_clientmessage();
1355 * We need to set the _NET_SYSTEM_TRAY_COLORS atom on the tray selection window
1356 * to make GTK+ 3 applets with symbolic icons visible. If the colors are unset,
1357 * they assume a light background.
1358 * See also https://bugzilla.gnome.org/show_bug.cgi?id=679591
1361 void init_tray_colors(void) {
1362 /* Convert colors.bar_fg (#rrggbb) to 16-bit RGB */
1363 const char *bar_fg = (config.colors.bar_fg ? config.colors.bar_fg : "#FFFFFF");
1365 DLOG("Setting bar_fg = %s as _NET_SYSTEM_TRAY_COLORS\n", bar_fg);
1367 char strgroups[3][3] = {{bar_fg[1], bar_fg[2], '\0'},
1368 {bar_fg[3], bar_fg[4], '\0'},
1369 {bar_fg[5], bar_fg[6], '\0'}};
1370 const uint8_t r = strtol(strgroups[0], NULL, 16);
1371 const uint8_t g = strtol(strgroups[1], NULL, 16);
1372 const uint8_t b = strtol(strgroups[2], NULL, 16);
1374 const uint16_t r16 = ((uint16_t)r << 8) | r;
1375 const uint16_t g16 = ((uint16_t)g << 8) | g;
1376 const uint16_t b16 = ((uint16_t)b << 8) | b;
1378 const uint32_t tray_colors[12] = {
1379 r16, g16, b16, /* foreground color */
1380 r16, g16, b16, /* error color */
1381 r16, g16, b16, /* warning color */
1382 r16, g16, b16, /* success color */
1385 xcb_change_property(xcb_connection,
1386 XCB_PROP_MODE_REPLACE,
1388 atoms[_NET_SYSTEM_TRAY_COLORS],
1396 * Cleanup the xcb stuff.
1397 * Called once, before the program terminates.
1400 void clean_xcb(void) {
1403 SLIST_FOREACH(o_walk, outputs, slist) {
1404 destroy_window(o_walk);
1405 FREE(o_walk->trayclients);
1406 FREE(o_walk->workspaces);
1409 FREE_SLIST(outputs, i3_output);
1412 xcb_flush(xcb_connection);
1413 xcb_aux_sync(xcb_connection);
1414 xcb_disconnect(xcb_connection);
1416 ev_check_stop(main_loop, xcb_chk);
1417 ev_prepare_stop(main_loop, xcb_prep);
1418 ev_io_stop(main_loop, xcb_io);
1426 * Get the earlier requested atoms and save them in the prepared data structure
1429 void get_atoms(void) {
1430 xcb_intern_atom_reply_t *reply;
1431 #define ATOM_DO(name) \
1432 reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
1433 if (reply == NULL) { \
1434 ELOG("Could not get atom %s\n", #name); \
1435 exit(EXIT_FAILURE); \
1437 atoms[name] = reply->atom; \
1440 #include "xcb_atoms.def"
1441 DLOG("Got atoms\n");
1445 * Reparents all tray clients of the specified output to the root window. This
1446 * is either used when shutting down, when an output appears (xrandr --output
1447 * VGA1 --off) or when the primary output changes.
1449 * Applications using the tray will start the protocol from the beginning again
1453 void kick_tray_clients(i3_output *output) {
1454 if (TAILQ_EMPTY(output->trayclients))
1457 trayclient *trayclient;
1458 while (!TAILQ_EMPTY(output->trayclients)) {
1459 trayclient = TAILQ_FIRST(output->trayclients);
1460 /* Unmap, then reparent (to root) the tray client windows */
1461 xcb_unmap_window(xcb_connection, trayclient->win);
1462 xcb_reparent_window(xcb_connection,
1468 /* We remove the trayclient right here. We might receive an UnmapNotify
1469 * event afterwards, but better safe than sorry. */
1470 TAILQ_REMOVE(output->trayclients, trayclient, tailq);
1473 /* Fake a DestroyNotify so that Qt re-adds tray icons.
1474 * We cannot actually destroy the window because then Qt will not restore
1475 * its event mask on the new window. */
1476 uint8_t buffer[32] = {0};
1477 xcb_destroy_notify_event_t *event = (xcb_destroy_notify_event_t *)buffer;
1479 event->response_type = XCB_DESTROY_NOTIFY;
1480 event->event = selwin;
1481 event->window = selwin;
1483 xcb_send_event(conn, false, selwin, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *)event);
1485 send_tray_clientmessage();
1489 * Destroy the bar of the specified output
1492 void destroy_window(i3_output *output) {
1493 if (output == NULL) {
1496 if (output->bar.id == XCB_NONE) {
1500 kick_tray_clients(output);
1501 xcb_destroy_window(xcb_connection, output->bar.id);
1502 output->bar.id = XCB_NONE;
1506 * Reallocate the statusline buffer
1509 void realloc_sl_buffer(void) {
1510 DLOG("Re-allocating statusline buffer, statusline_width = %d, root_screen->width_in_pixels = %d\n",
1511 statusline_width, root_screen->width_in_pixels);
1512 xcb_free_pixmap(xcb_connection, statusline_surface.id);
1513 cairo_surface_free(&statusline_surface);
1515 xcb_pixmap_t statusline_id = xcb_generate_id(xcb_connection);
1516 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1520 MAX(root_screen->width_in_pixels, statusline_width),
1522 cairo_surface_init(&statusline_surface, statusline_id, root_screen->width_in_pixels, root_screen->height_in_pixels);
1524 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer"))
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.id == XCB_NONE) {
1591 DLOG("Creating window for output %s\n", walk->name);
1593 xcb_window_t bar_id = xcb_generate_id(xcb_connection);
1594 xcb_pixmap_t buffer_id = xcb_generate_id(xcb_connection);
1595 mask = XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP;
1597 values[0] = colors.bar_bg.colorpixel;
1598 values[1] = root_screen->black_pixel;
1599 /* If hide_on_modifier is set to hide or invisible mode, i3 is not supposed to manage our bar windows */
1600 values[2] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1601 /* We enable the following EventMask fields:
1602 * EXPOSURE, to get expose events (we have to re-draw then)
1603 * SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
1604 * child windows use ConfigureWindow
1605 * BUTTON_PRESS, to handle clicks on the workspace buttons
1607 values[3] = XCB_EVENT_MASK_EXPOSURE |
1608 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
1609 XCB_EVENT_MASK_BUTTON_PRESS;
1610 if (config.hide_on_modifier == M_DOCK) {
1611 /* If the bar is normally visible, catch visibility change events to suspend
1612 * the status process when the bar is obscured by full-screened windows. */
1613 values[3] |= XCB_EVENT_MASK_VISIBILITY_CHANGE;
1614 walk->visible = true;
1616 values[4] = colormap;
1618 xcb_void_cookie_t win_cookie = xcb_create_window_checked(xcb_connection,
1622 walk->rect.x, walk->rect.y + walk->rect.h - bar_height,
1623 walk->rect.w, bar_height,
1625 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1626 visual_type->visual_id,
1630 /* The double-buffer we use to render stuff off-screen */
1631 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1638 /* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
1639 xcb_void_cookie_t class_cookie;
1640 class_cookie = xcb_change_property(xcb_connection,
1641 XCB_PROP_MODE_REPLACE,
1646 (strlen("i3bar") + 1) * 2,
1650 sasprintf(&name, "i3bar for output %s", walk->name);
1651 xcb_void_cookie_t name_cookie;
1652 name_cookie = xcb_change_property(xcb_connection,
1653 XCB_PROP_MODE_REPLACE,
1662 /* We want dock windows (for now). When override_redirect is set, i3 is ignoring
1664 xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
1665 XCB_PROP_MODE_REPLACE,
1667 atoms[_NET_WM_WINDOW_TYPE],
1671 (unsigned char *)&atoms[_NET_WM_WINDOW_TYPE_DOCK]);
1673 cairo_surface_init(&walk->bar, bar_id, walk->rect.w, bar_height);
1674 cairo_surface_init(&walk->buffer, buffer_id, walk->rect.w, bar_height);
1676 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1678 /* We finally map the bar (display it on screen), unless the modifier-switch is on */
1679 xcb_void_cookie_t map_cookie;
1680 if (config.hide_on_modifier == M_DOCK) {
1681 map_cookie = xcb_map_window_checked(xcb_connection, bar_id);
1684 if (xcb_request_failed(win_cookie, "Could not create window") ||
1685 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1686 xcb_request_failed(dock_cookie, "Could not set dock mode") ||
1687 xcb_request_failed(class_cookie, "Could not set WM_CLASS") ||
1688 xcb_request_failed(name_cookie, "Could not set WM_NAME") ||
1689 xcb_request_failed(strut_cookie, "Could not set strut") ||
1690 ((config.hide_on_modifier == M_DOCK) && xcb_request_failed(map_cookie, "Could not map window"))) {
1694 const char *tray_output = (config.tray_output ? config.tray_output : SLIST_FIRST(outputs)->name);
1695 if (!tray_configured && strcasecmp(tray_output, "none") != 0) {
1696 /* Configuration sanity check: ensure this i3bar instance handles the output on
1697 * which the tray should appear (e.g. don’t initialize a tray if tray_output ==
1698 * VGA-1 but output == [HDMI-1]).
1701 SLIST_FOREACH(output, outputs, slist) {
1702 if (strcasecmp(output->name, tray_output) == 0 ||
1703 (strcasecmp(tray_output, "primary") == 0 && output->primary)) {
1708 tray_configured = true;
1711 /* We already have a bar, so we just reconfigure it */
1712 mask = XCB_CONFIG_WINDOW_X |
1713 XCB_CONFIG_WINDOW_Y |
1714 XCB_CONFIG_WINDOW_WIDTH |
1715 XCB_CONFIG_WINDOW_HEIGHT |
1716 XCB_CONFIG_WINDOW_STACK_MODE;
1717 values[0] = walk->rect.x;
1718 if (config.position == POS_TOP)
1719 values[1] = walk->rect.y;
1721 values[1] = walk->rect.y + walk->rect.h - bar_height;
1722 values[2] = walk->rect.w;
1723 values[3] = bar_height;
1724 values[4] = XCB_STACK_MODE_ABOVE;
1726 DLOG("Reconfiguring strut partial property for output %s\n", walk->name);
1727 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1729 DLOG("Destroying buffer for output %s\n", walk->name);
1730 xcb_free_pixmap(xcb_connection, walk->buffer.id);
1732 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
1733 xcb_void_cookie_t cfg_cookie = xcb_configure_window_checked(xcb_connection,
1738 mask = XCB_CW_OVERRIDE_REDIRECT;
1739 values[0] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1740 DLOG("Changing window attribute override_redirect for output %s to %d\n", walk->name, values[0]);
1741 xcb_void_cookie_t chg_cookie = xcb_change_window_attributes(xcb_connection,
1746 DLOG("Recreating buffer for output %s\n", walk->name);
1747 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1754 cairo_surface_free(&(walk->bar));
1755 cairo_surface_free(&(walk->buffer));
1756 cairo_surface_init(&(walk->bar), walk->bar.id, walk->rect.w, bar_height);
1757 cairo_surface_init(&(walk->buffer), walk->buffer.id, walk->rect.w, bar_height);
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.id);
1763 if (config.hide_on_modifier == M_DOCK) {
1765 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar.id);
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;
1798 /* Is the currently-rendered statusline using short_text items? */
1799 bool rendered_statusline_is_short = false;
1801 refresh_statusline(false);
1803 i3_output *outputs_walk;
1804 SLIST_FOREACH(outputs_walk, outputs, slist) {
1805 if (!outputs_walk->active) {
1806 DLOG("Output %s inactive, skipping...\n", outputs_walk->name);
1809 if (outputs_walk->bar.id == XCB_NONE) {
1810 /* Oh shit, an active output without an own bar. Create it now! */
1811 reconfig_windows(false);
1814 /* First things first: clear the backbuffer */
1815 cairo_save(outputs_walk->buffer.cr);
1816 cairo_set_source_color(&(outputs_walk->buffer), colors.bar_bg);
1817 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1818 cairo_paint(outputs_walk->buffer.cr);
1819 cairo_surface_flush(outputs_walk->buffer.surface);
1820 cairo_restore(outputs_walk->buffer.cr);
1822 if (!config.disable_ws) {
1824 TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
1825 DLOG("Drawing button for WS %s at x = %d, len = %d\n",
1826 i3string_as_utf8(ws_walk->name), workspace_width, ws_walk->name_width);
1827 color_t fg_color = colors.inactive_ws_fg;
1828 color_t bg_color = colors.inactive_ws_bg;
1829 color_t border_color = colors.inactive_ws_border;
1830 if (ws_walk->visible) {
1831 if (!ws_walk->focused) {
1832 fg_color = colors.active_ws_fg;
1833 bg_color = colors.active_ws_bg;
1834 border_color = colors.active_ws_border;
1836 fg_color = colors.focus_ws_fg;
1837 bg_color = colors.focus_ws_bg;
1838 border_color = colors.focus_ws_border;
1841 if (ws_walk->urgent) {
1842 DLOG("WS %s is urgent!\n", i3string_as_utf8(ws_walk->name));
1843 fg_color = colors.urgent_ws_fg;
1844 bg_color = colors.urgent_ws_bg;
1845 border_color = colors.urgent_ws_border;
1849 /* Draw the border of the button. */
1850 cairo_save(outputs_walk->buffer.cr);
1851 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1852 cairo_set_source_color(&(outputs_walk->buffer), border_color);
1853 cairo_rectangle(outputs_walk->buffer.cr, workspace_width, logical_px(1),
1854 ws_walk->name_width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1855 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1));
1856 cairo_fill(outputs_walk->buffer.cr);
1857 cairo_surface_flush(outputs_walk->buffer.surface);
1858 cairo_restore(outputs_walk->buffer.cr);
1860 /* Draw the inside of the button. */
1861 cairo_save(outputs_walk->buffer.cr);
1862 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1863 cairo_set_source_color(&(outputs_walk->buffer), bg_color);
1864 cairo_rectangle(outputs_walk->buffer.cr, workspace_width + logical_px(1), 2 * logical_px(1),
1865 ws_walk->name_width + 2 * logical_px(ws_hoff_px),
1866 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1));
1867 cairo_fill(outputs_walk->buffer.cr);
1868 cairo_surface_flush(outputs_walk->buffer.surface);
1869 cairo_restore(outputs_walk->buffer.cr);
1871 cairo_draw_text(ws_walk->name, &(outputs_walk->buffer), fg_color, bg_color,
1872 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1873 logical_px(ws_voff_px),
1874 ws_walk->name_width);
1876 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
1877 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
1878 workspace_width += logical_px(ws_spacing_px);
1882 if (binding.name && !config.disable_binding_mode_indicator) {
1883 workspace_width += logical_px(ws_spacing_px);
1885 color_t fg_color = colors.binding_mode_fg;
1886 color_t bg_color = colors.binding_mode_bg;
1888 cairo_save(outputs_walk->buffer.cr);
1889 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1890 cairo_set_source_color(&(outputs_walk->buffer), colors.binding_mode_border);
1891 cairo_rectangle(outputs_walk->buffer.cr, workspace_width, logical_px(1),
1892 binding.width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1893 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1));
1894 cairo_fill(outputs_walk->buffer.cr);
1895 cairo_surface_flush(outputs_walk->buffer.surface);
1896 cairo_restore(outputs_walk->buffer.cr);
1898 cairo_save(outputs_walk->buffer.cr);
1899 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1900 cairo_set_source_color(&(outputs_walk->buffer), bg_color);
1901 cairo_rectangle(outputs_walk->buffer.cr, workspace_width + logical_px(1), 2 * logical_px(1),
1902 binding.width + 2 * logical_px(ws_hoff_px),
1903 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1));
1904 cairo_fill(outputs_walk->buffer.cr);
1905 cairo_surface_flush(outputs_walk->buffer.surface);
1906 cairo_restore(outputs_walk->buffer.cr);
1908 cairo_draw_text(binding.name, &(outputs_walk->buffer), fg_color, bg_color,
1909 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1910 logical_px(ws_voff_px),
1914 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + binding.width;
1917 if (!TAILQ_EMPTY(&statusline_head)) {
1918 DLOG("Printing statusline!\n");
1920 int tray_width = get_tray_width(outputs_walk->trayclients);
1921 uint32_t max_statusline_width = outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px);
1923 /* If the statusline is too long, try to use short texts. */
1924 if (statusline_width > max_statusline_width) {
1925 /* If the currently rendered statusline is long, render a short status line */
1926 refresh_statusline(true);
1927 rendered_statusline_is_short = true;
1928 } else if (rendered_statusline_is_short) {
1929 /* If the currently rendered statusline is short, render a long status line */
1930 refresh_statusline(false);
1931 rendered_statusline_is_short = false;
1934 /* Luckily we already prepared a seperate pixmap containing the rendered
1935 * statusline, we just have to copy the relevant parts to the relevant
1937 int visible_statusline_width = MIN(statusline_width, max_statusline_width);
1938 int x_src = (int16_t)(statusline_width - visible_statusline_width);
1939 int x_dest = (int16_t)(outputs_walk->rect.w - tray_width - logical_px(sb_hoff_px) - visible_statusline_width);
1941 cairo_save(outputs_walk->buffer.cr);
1942 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1943 cairo_set_source_surface(outputs_walk->buffer.cr, statusline_surface.surface, x_dest - x_src, 0);
1944 cairo_rectangle(outputs_walk->buffer.cr, x_dest, 0, (int16_t)visible_statusline_width, (int16_t)bar_height);
1945 cairo_fill(outputs_walk->buffer.cr);
1946 cairo_surface_flush(outputs_walk->buffer.surface);
1947 cairo_restore(outputs_walk->buffer.cr);
1950 workspace_width = 0;
1953 /* Assure the bar is hidden/unhidden according to the specified hidden_state and mode */
1955 config.hidden_state == S_SHOW ||
1958 } else if (config.hide_on_modifier == M_HIDE) {
1966 * Redraw the bars, i.e. simply copy the buffer to the barwindow
1969 void redraw_bars(void) {
1970 i3_output *outputs_walk;
1971 SLIST_FOREACH(outputs_walk, outputs, slist) {
1972 if (!outputs_walk->active) {
1976 cairo_save(outputs_walk->bar.cr);
1977 cairo_set_operator(outputs_walk->bar.cr, CAIRO_OPERATOR_SOURCE);
1978 cairo_set_source_surface(outputs_walk->bar.cr, outputs_walk->buffer.surface, 0, 0);
1979 cairo_rectangle(outputs_walk->bar.cr, 0, 0, outputs_walk->rect.w, outputs_walk->rect.h);
1980 cairo_fill(outputs_walk->bar.cr);
1981 cairo_surface_flush(outputs_walk->bar.surface);
1982 cairo_restore(outputs_walk->bar.cr);
1984 xcb_flush(xcb_connection);
1989 * Set the current binding mode
1992 void set_current_mode(struct mode *current) {
1993 I3STRING_FREE(binding.name);
1995 activated_mode = binding.name != NULL;