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_restore(statusline_surface.cr);
184 /* Draw a custom separator. */
185 uint32_t separator_x = MAX(x - block->sep_block_width, center_x - separator_symbol_width / 2);
186 set_font_colors(statusline_surface.gc, colors.sep_fg.colorpixel, colors.bar_bg.colorpixel);
187 draw_text(config.separator_symbol, statusline_surface.id, statusline_surface.gc, visual_type,
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_restore(statusline_surface.cr);
255 /* Draw the text of each block. */
257 TAILQ_FOREACH(block, &statusline_head, blocks) {
258 if (i3string_get_num_bytes(block->full_text) == 0)
262 /* If this block is urgent, draw it with the defined color and border. */
264 fg_color = colors.urgent_ws_fg;
266 /* Draw the background */
267 cairo_set_source_color(&statusline_surface, colors.urgent_ws_bg);
268 cairo_rectangle(statusline_surface.cr, x - logical_px(2), logical_px(1), block->width + logical_px(4), bar_height - logical_px(2));
269 cairo_fill(statusline_surface.cr);
271 fg_color = (block->color ? cairo_hex_to_color(block->color) : colors.bar_fg);
274 set_font_colors(statusline_surface.gc, fg_color.colorpixel, colors.bar_bg.colorpixel);
275 draw_text(block->full_text, statusline_surface.id, statusline_surface.gc, visual_type,
276 x + block->x_offset, logical_px(ws_voff_px), block->width);
277 x += block->width + block->sep_block_width + block->x_offset + block->x_append;
279 /* If this is not the last block, draw a separator. */
280 draw_separator(x, block);
285 * Hides all bars (unmaps them)
288 void hide_bars(void) {
289 if ((config.hide_on_modifier == M_DOCK) || (config.hidden_state == S_SHOW && config.hide_on_modifier == M_HIDE)) {
294 SLIST_FOREACH(walk, outputs, slist) {
298 xcb_unmap_window(xcb_connection, walk->bar.id);
304 * Unhides all bars (maps them)
307 void unhide_bars(void) {
308 if (config.hide_on_modifier != M_HIDE) {
313 xcb_void_cookie_t cookie;
319 SLIST_FOREACH(walk, outputs, slist) {
320 if (walk->bar.id == XCB_NONE) {
323 mask = XCB_CONFIG_WINDOW_X |
324 XCB_CONFIG_WINDOW_Y |
325 XCB_CONFIG_WINDOW_WIDTH |
326 XCB_CONFIG_WINDOW_HEIGHT |
327 XCB_CONFIG_WINDOW_STACK_MODE;
328 values[0] = walk->rect.x;
329 if (config.position == POS_TOP)
330 values[1] = walk->rect.y;
332 values[1] = walk->rect.y + walk->rect.h - bar_height;
333 values[2] = walk->rect.w;
334 values[3] = bar_height;
335 values[4] = XCB_STACK_MODE_ABOVE;
336 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
337 cookie = xcb_configure_window_checked(xcb_connection,
342 if (xcb_request_failed(cookie, "Could not reconfigure window")) {
345 xcb_map_window(xcb_connection, walk->bar.id);
350 * Parse the colors into a format that we can use
353 void init_colors(const struct xcb_color_strings_t *new_colors) {
354 #define PARSE_COLOR(name, def) \
356 colors.name = cairo_hex_to_color(new_colors->name ? new_colors->name : def); \
358 PARSE_COLOR(bar_fg, "#FFFFFF");
359 PARSE_COLOR(bar_bg, "#000000");
360 PARSE_COLOR(sep_fg, "#666666");
361 PARSE_COLOR(active_ws_fg, "#FFFFFF");
362 PARSE_COLOR(active_ws_bg, "#333333");
363 PARSE_COLOR(active_ws_border, "#333333");
364 PARSE_COLOR(inactive_ws_fg, "#888888");
365 PARSE_COLOR(inactive_ws_bg, "#222222");
366 PARSE_COLOR(inactive_ws_border, "#333333");
367 PARSE_COLOR(urgent_ws_fg, "#FFFFFF");
368 PARSE_COLOR(urgent_ws_bg, "#900000");
369 PARSE_COLOR(urgent_ws_border, "#2f343a");
370 PARSE_COLOR(focus_ws_fg, "#FFFFFF");
371 PARSE_COLOR(focus_ws_bg, "#285577");
372 PARSE_COLOR(focus_ws_border, "#4c7899");
375 #define PARSE_COLOR_FALLBACK(name, fallback) \
377 colors.name = new_colors->name ? cairo_hex_to_color(new_colors->name) : colors.fallback; \
380 /* For the binding mode indicator colors, we don't hardcode a default.
381 * Instead, we fall back to urgent_ws_* colors. */
382 PARSE_COLOR_FALLBACK(binding_mode_fg, urgent_ws_fg);
383 PARSE_COLOR_FALLBACK(binding_mode_bg, urgent_ws_bg);
384 PARSE_COLOR_FALLBACK(binding_mode_border, urgent_ws_border);
385 #undef PARSE_COLOR_FALLBACK
388 xcb_flush(xcb_connection);
392 * Handle a button press event (i.e. a mouse click on one of our bars).
393 * We determine, whether the click occured on a workspace button or if the scroll-
394 * wheel was used and change the workspace appropriately
397 void handle_button(xcb_button_press_event_t *event) {
398 /* Determine, which bar was clicked */
400 xcb_window_t bar = event->event;
401 SLIST_FOREACH(walk, outputs, slist) {
402 if (walk->bar.id == bar) {
408 DLOG("Unknown bar clicked!\n");
412 int32_t x = event->event_x >= 0 ? event->event_x : 0;
413 int32_t original_x = x;
415 DLOG("Got button %d\n", event->detail);
417 int workspace_width = 0;
418 i3_ws *cur_ws = NULL, *clicked_ws = NULL, *ws_walk;
420 TAILQ_FOREACH(ws_walk, walk->workspaces, tailq) {
421 int w = 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
422 if (x >= workspace_width && x <= workspace_width + w)
423 clicked_ws = ws_walk;
424 if (ws_walk->visible)
426 workspace_width += w;
427 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
428 workspace_width += logical_px(ws_spacing_px);
431 if (x > workspace_width && child_want_click_events()) {
432 /* If the child asked for click events,
433 * check if a status block has been clicked. */
434 int tray_width = get_tray_width(walk->trayclients);
435 int block_x = 0, last_block_x;
436 int offset = walk->rect.w - statusline_width - tray_width - logical_px(sb_hoff_px);
438 x = original_x - offset;
439 if (x >= 0 && (size_t)x < statusline_width) {
440 struct status_block *block;
441 int sep_offset_remainder = 0;
443 TAILQ_FOREACH(block, &statusline_head, blocks) {
444 if (i3string_get_num_bytes(block->full_text) == 0)
447 last_block_x = block_x;
448 block_x += block->width + block->x_offset + block->x_append + get_sep_offset(block) + sep_offset_remainder;
450 if (x <= block_x && x >= last_block_x) {
451 send_block_clicked(event->detail, block->name, block->instance, event->root_x, event->root_y);
455 sep_offset_remainder = block->sep_block_width - get_sep_offset(block);
461 /* If a custom command was specified for this mouse button, it overrides
462 * the default behavior. */
464 TAILQ_FOREACH(binding, &(config.bindings), bindings) {
465 if (binding->input_code != event->detail)
468 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, binding->command);
472 if (cur_ws == NULL) {
473 DLOG("No workspace active?\n");
476 switch (event->detail) {
478 /* Mouse wheel up. We select the previous ws, if any.
479 * If there is no more workspace, don’t even send the workspace
480 * command, otherwise (with workspace auto_back_and_forth) we’d end
481 * up on the wrong workspace. */
482 if (cur_ws == TAILQ_FIRST(walk->workspaces))
485 cur_ws = TAILQ_PREV(cur_ws, ws_head, tailq);
488 /* Mouse wheel down. We select the next ws, if any.
489 * If there is no more workspace, don’t even send the workspace
490 * command, otherwise (with workspace auto_back_and_forth) we’d end
491 * up on the wrong workspace. */
492 if (cur_ws == TAILQ_LAST(walk->workspaces, ws_head))
495 cur_ws = TAILQ_NEXT(cur_ws, tailq);
500 /* if no workspace was clicked, focus our currently visible
501 * workspace if it is not already focused */
502 if (cur_ws == NULL) {
503 TAILQ_FOREACH(cur_ws, walk->workspaces, tailq) {
504 if (cur_ws->visible && !cur_ws->focused)
509 /* if there is nothing to focus, we are done */
518 /* To properly handle workspace names with double quotes in them, we need
519 * to escape the double quotes. Unfortunately, that’s rather ugly in C: We
520 * first count the number of double quotes, then we allocate a large enough
521 * buffer, then we copy character by character. */
524 const char *utf8_name = cur_ws->canonical_name;
525 for (const char *walk = utf8_name; *walk != '\0'; walk++) {
526 if (*walk == '"' || *walk == '\\')
528 /* While we’re looping through the name anyway, we can save one
533 const size_t len = namelen + strlen("workspace \"\"") + 1;
534 char *buffer = scalloc(len + num_quotes, 1);
535 strncpy(buffer, "workspace \"", strlen("workspace \""));
536 size_t inpos, outpos;
537 for (inpos = 0, outpos = strlen("workspace \"");
540 if (utf8_name[inpos] == '"' || utf8_name[inpos] == '\\') {
541 buffer[outpos] = '\\';
544 buffer[outpos] = utf8_name[inpos];
546 buffer[outpos] = '"';
547 i3_send_msg(I3_IPC_MESSAGE_TYPE_COMMAND, buffer);
552 * Handle visibility notifications: when none of the bars are visible, e.g.
553 * if windows are in fullscreen on each output, suspend the child process.
556 static void handle_visibility_notify(xcb_visibility_notify_event_t *event) {
557 bool visible = (event->state != XCB_VISIBILITY_FULLY_OBSCURED);
561 SLIST_FOREACH(output, outputs, slist) {
562 if (!output->active) {
565 if (output->bar.id == event->window) {
566 if (output->visible == visible) {
569 output->visible = visible;
571 num_visible += output->visible;
574 if (num_visible == 0) {
576 } else if (num_visible == visible) {
577 /* Wake the child only when transitioning from 0 to 1 visible bar.
578 * We cannot transition from 0 to 2 or more visible bars at once since
579 * visibility events are delivered to each window separately */
585 * Adjusts the size of the tray window and alignment of the tray clients by
586 * configuring their respective x coordinates. To be called when mapping or
587 * unmapping a tray client window.
590 static void configure_trayclients(void) {
591 trayclient *trayclient;
593 SLIST_FOREACH(output, outputs, slist) {
598 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
599 if (!trayclient->mapped)
603 DLOG("Configuring tray window %08x to x=%d\n",
604 trayclient->win, output->rect.w - (clients * (icon_size + logical_px(config.tray_padding))));
605 uint32_t x = output->rect.w - (clients * (icon_size + logical_px(config.tray_padding)));
606 xcb_configure_window(xcb_connection,
615 * Handles ClientMessages (messages sent from another client directly to us).
617 * At the moment, only the tray window will receive client messages. All
618 * supported client messages currently are _NET_SYSTEM_TRAY_OPCODE.
621 static void handle_client_message(xcb_client_message_event_t *event) {
622 if (event->type == atoms[_NET_SYSTEM_TRAY_OPCODE] &&
623 event->format == 32) {
624 DLOG("_NET_SYSTEM_TRAY_OPCODE received\n");
625 /* event->data.data32[0] is the timestamp */
626 uint32_t op = event->data.data32[1];
629 if (op == SYSTEM_TRAY_REQUEST_DOCK) {
630 xcb_window_t client = event->data.data32[2];
632 /* Listen for PropertyNotify events to get the most recent value of
633 * the XEMBED_MAPPED atom, also listen for UnmapNotify events */
634 mask = XCB_CW_EVENT_MASK;
635 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
636 XCB_EVENT_MASK_STRUCTURE_NOTIFY;
637 xcb_change_window_attributes(xcb_connection,
642 /* Request the _XEMBED_INFO property. The XEMBED specification
643 * (which is referred by the tray specification) says this *has* to
644 * be set, but VLC does not set it… */
647 xcb_get_property_cookie_t xembedc;
648 xcb_generic_error_t *error;
649 xembedc = xcb_get_property(xcb_connection,
653 XCB_GET_PROPERTY_TYPE_ANY,
657 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
661 ELOG("Error getting _XEMBED_INFO property: error_code %d\n",
666 if (xembedr != NULL && xembedr->length != 0) {
667 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
668 uint32_t *xembed = xcb_get_property_value(xembedr);
669 DLOG("xembed version = %d\n", xembed[0]);
670 DLOG("xembed flags = %d\n", xembed[1]);
671 map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
672 xe_version = xembed[0];
677 ELOG("Window %08x violates the XEMBED protocol, _XEMBED_INFO not set\n", client);
680 DLOG("X window %08x requested docking\n", client);
681 i3_output *walk, *output = NULL;
682 SLIST_FOREACH(walk, outputs, slist) {
685 if (config.tray_output) {
686 if ((strcasecmp(walk->name, config.tray_output) != 0) &&
687 (!walk->primary || strcasecmp("primary", config.tray_output) != 0))
691 DLOG("using output %s\n", walk->name);
695 /* In case of tray_output == primary and there is no primary output
696 * configured, we fall back to the first available output. */
697 if (output == NULL &&
698 config.tray_output &&
699 strcasecmp("primary", config.tray_output) == 0) {
700 SLIST_FOREACH(walk, outputs, slist) {
703 DLOG("Falling back to output %s because no primary output is configured\n", walk->name);
708 if (output == NULL) {
709 ELOG("No output found\n");
713 xcb_void_cookie_t rcookie = xcb_reparent_window(xcb_connection,
716 output->rect.w - icon_size - logical_px(config.tray_padding),
717 logical_px(config.tray_padding));
718 if (xcb_request_failed(rcookie, "Could not reparent window. Maybe it is using an incorrect depth/visual?"))
721 /* We reconfigure the window to use a reasonable size. The systray
722 * specification explicitly says:
723 * Tray icons may be assigned any size by the system tray, and
724 * should do their best to cope with any size effectively
726 mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
727 values[0] = icon_size;
728 values[1] = icon_size;
729 xcb_configure_window(xcb_connection,
734 /* send the XEMBED_EMBEDDED_NOTIFY message */
735 void *event = scalloc(32, 1);
736 xcb_client_message_event_t *ev = event;
737 ev->response_type = XCB_CLIENT_MESSAGE;
739 ev->type = atoms[_XEMBED];
741 ev->data.data32[0] = XCB_CURRENT_TIME;
742 ev->data.data32[1] = atoms[XEMBED_EMBEDDED_NOTIFY];
743 ev->data.data32[2] = output->bar.id;
744 ev->data.data32[3] = xe_version;
745 xcb_send_event(xcb_connection,
748 XCB_EVENT_MASK_NO_EVENT,
752 /* Put the client inside the save set. Upon termination (whether
753 * killed or normal exit does not matter) of i3bar, these clients
754 * will be correctly reparented to their most closest living
755 * ancestor. Without this, tray icons might die when i3bar
757 xcb_change_save_set(xcb_connection, XCB_SET_MODE_INSERT, client);
759 trayclient *tc = smalloc(sizeof(trayclient));
761 tc->xe_version = xe_version;
763 TAILQ_INSERT_TAIL(output->trayclients, tc, tailq);
766 DLOG("Mapping dock client\n");
767 xcb_map_window(xcb_connection, client);
769 DLOG("Not mapping dock client yet\n");
771 /* Trigger an update to copy the statusline text to the appropriate
773 configure_trayclients();
780 * Handles DestroyNotify events by removing the tray client from the data
781 * structure. According to the XEmbed protocol, this is one way for a tray
782 * client to finish the protocol. After this event is received, there is no
783 * further interaction with the tray client.
785 * See: http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
788 static void handle_destroy_notify(xcb_destroy_notify_event_t *event) {
789 DLOG("DestroyNotify for window = %08x, event = %08x\n", event->window, event->event);
792 SLIST_FOREACH(walk, outputs, slist) {
795 DLOG("checking output %s\n", walk->name);
796 trayclient *trayclient;
797 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
798 if (trayclient->win != event->window)
801 DLOG("Removing tray client with window ID %08x\n", event->window);
802 TAILQ_REMOVE(walk->trayclients, trayclient, tailq);
804 /* Trigger an update, we now have more space for the statusline */
805 configure_trayclients();
813 * Handles MapNotify events. These events happen when a tray client shows its
814 * window. We respond by realigning the tray clients.
817 static void handle_map_notify(xcb_map_notify_event_t *event) {
818 DLOG("MapNotify for window = %08x, event = %08x\n", event->window, event->event);
821 SLIST_FOREACH(walk, outputs, slist) {
824 DLOG("checking output %s\n", walk->name);
825 trayclient *trayclient;
826 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
827 if (trayclient->win != event->window)
830 DLOG("Tray client mapped (window ID %08x). Adjusting tray.\n", event->window);
831 trayclient->mapped = true;
833 /* Trigger an update, we now have more space for the statusline */
834 configure_trayclients();
841 * Handles UnmapNotify events. These events happen when a tray client hides its
842 * window. We respond by realigning the tray clients.
845 static void handle_unmap_notify(xcb_unmap_notify_event_t *event) {
846 DLOG("UnmapNotify for window = %08x, event = %08x\n", event->window, event->event);
849 SLIST_FOREACH(walk, outputs, slist) {
852 DLOG("checking output %s\n", walk->name);
853 trayclient *trayclient;
854 TAILQ_FOREACH(trayclient, walk->trayclients, tailq) {
855 if (trayclient->win != event->window)
858 DLOG("Tray client unmapped (window ID %08x). Adjusting tray.\n", event->window);
859 trayclient->mapped = false;
861 /* Trigger an update, we now have more space for the statusline */
862 configure_trayclients();
870 * Handle PropertyNotify messages. Currently only the _XEMBED_INFO property is
871 * handled, which tells us whether a dock client should be mapped or unmapped.
874 static void handle_property_notify(xcb_property_notify_event_t *event) {
875 DLOG("PropertyNotify\n");
876 if (event->atom == atoms[_XEMBED_INFO] &&
877 event->state == XCB_PROPERTY_NEW_VALUE) {
878 DLOG("xembed_info updated\n");
879 trayclient *trayclient = NULL, *walk;
881 SLIST_FOREACH(o_walk, outputs, slist) {
885 TAILQ_FOREACH(walk, o_walk->trayclients, tailq) {
886 if (walk->win != event->window)
896 ELOG("PropertyNotify received for unknown window %08x\n",
900 xcb_get_property_cookie_t xembedc;
901 xembedc = xcb_get_property_unchecked(xcb_connection,
905 XCB_GET_PROPERTY_TYPE_ANY,
909 xcb_get_property_reply_t *xembedr = xcb_get_property_reply(xcb_connection,
912 if (xembedr == NULL || xembedr->length == 0) {
913 DLOG("xembed_info unset\n");
917 DLOG("xembed format = %d, len = %d\n", xembedr->format, xembedr->length);
918 uint32_t *xembed = xcb_get_property_value(xembedr);
919 DLOG("xembed version = %d\n", xembed[0]);
920 DLOG("xembed flags = %d\n", xembed[1]);
921 bool map_it = ((xembed[1] & XEMBED_MAPPED) == XEMBED_MAPPED);
922 DLOG("map state now %d\n", map_it);
923 if (trayclient->mapped && !map_it) {
924 /* need to unmap the window */
925 xcb_unmap_window(xcb_connection, trayclient->win);
926 } else if (!trayclient->mapped && map_it) {
927 /* need to map the window */
928 xcb_map_window(xcb_connection, trayclient->win);
935 * Handle ConfigureRequests by denying them and sending the client a
936 * ConfigureNotify with its actual size.
939 static void handle_configure_request(xcb_configure_request_event_t *event) {
940 DLOG("ConfigureRequest for window = %08x\n", event->window);
942 trayclient *trayclient;
944 SLIST_FOREACH(output, outputs, slist) {
949 TAILQ_FOREACH_REVERSE(trayclient, output->trayclients, tc_head, tailq) {
950 if (!trayclient->mapped)
954 if (trayclient->win != event->window)
957 xcb_rectangle_t rect;
958 rect.x = output->rect.w - (clients * (icon_size + logical_px(config.tray_padding)));
959 rect.y = logical_px(config.tray_padding);
960 rect.width = icon_size;
961 rect.height = icon_size;
963 DLOG("This is a tray window. x = %d\n", rect.x);
964 fake_configure_notify(xcb_connection, rect, event->window, 0);
969 DLOG("WARNING: Could not find corresponding tray window.\n");
973 * This function is called immediately before the main loop locks. We flush xcb
974 * then (and only then)
977 void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
978 xcb_flush(xcb_connection);
982 * This function is called immediately after the main loop locks, so when one
983 * of the watchers registered an event.
984 * We check whether an X-Event arrived and handle it.
987 void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
988 xcb_generic_event_t *event;
990 if (xcb_connection_has_error(xcb_connection)) {
991 ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
995 while ((event = xcb_poll_for_event(xcb_connection)) != NULL) {
996 int type = (event->response_type & ~0x80);
998 if (type == xkb_base && xkb_base > -1) {
999 DLOG("received an xkb event\n");
1001 xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *)event;
1002 if (state->xkbType == XCB_XKB_STATE_NOTIFY) {
1003 int modstate = state->mods & config.modifier;
1005 #define DLOGMOD(modmask, status) \
1007 switch (modmask) { \
1009 DLOG("ShiftMask got " #status "!\n"); \
1012 DLOG("ControlMask got " #status "!\n"); \
1015 DLOG("Mod1Mask got " #status "!\n"); \
1018 DLOG("Mod2Mask got " #status "!\n"); \
1021 DLOG("Mod3Mask got " #status "!\n"); \
1024 DLOG("Mod4Mask got " #status "!\n"); \
1027 DLOG("Mod5Mask got " #status "!\n"); \
1032 if (modstate != mod_pressed) {
1033 if (modstate == 0) {
1034 DLOGMOD(config.modifier, released);
1035 if (!activated_mode)
1038 DLOGMOD(config.modifier, pressed);
1039 activated_mode = false;
1042 mod_pressed = modstate;
1052 case XCB_VISIBILITY_NOTIFY:
1053 /* Visibility change: a bar is [un]obscured by other window */
1054 handle_visibility_notify((xcb_visibility_notify_event_t *)event);
1057 /* Expose-events happen, when the window needs to be redrawn */
1060 case XCB_BUTTON_PRESS:
1061 /* Button press events are mouse buttons clicked on one of our bars */
1062 handle_button((xcb_button_press_event_t *)event);
1064 case XCB_CLIENT_MESSAGE:
1065 /* Client messages are used for client-to-client communication, for
1066 * example system tray widgets talk to us directly via client messages. */
1067 handle_client_message((xcb_client_message_event_t *)event);
1069 case XCB_DESTROY_NOTIFY:
1070 /* DestroyNotify signifies the end of the XEmbed protocol */
1071 handle_destroy_notify((xcb_destroy_notify_event_t *)event);
1073 case XCB_UNMAP_NOTIFY:
1074 /* UnmapNotify is received when a tray client hides its window. */
1075 handle_unmap_notify((xcb_unmap_notify_event_t *)event);
1077 case XCB_MAP_NOTIFY:
1078 handle_map_notify((xcb_map_notify_event_t *)event);
1080 case XCB_PROPERTY_NOTIFY:
1081 /* PropertyNotify */
1082 handle_property_notify((xcb_property_notify_event_t *)event);
1084 case XCB_CONFIGURE_REQUEST:
1085 /* ConfigureRequest, sent by a tray child */
1086 handle_configure_request((xcb_configure_request_event_t *)event);
1094 * Dummy callback. We only need this, so that the prepare and check watchers
1098 void xcb_io_cb(struct ev_loop *loop, ev_io *watcher, int revents) {
1102 * Early initialization of the connection to X11: Everything which does not
1103 * depend on 'config'.
1106 char *init_xcb_early() {
1107 /* FIXME: xcb_connect leaks memory */
1108 xcb_connection = xcb_connect(NULL, &screen);
1109 if (xcb_connection_has_error(xcb_connection)) {
1110 ELOG("Cannot open display\n");
1113 conn = xcb_connection;
1114 DLOG("Connected to xcb\n");
1116 /* We have to request the atoms we need */
1117 #define ATOM_DO(name) atom_cookies[name] = xcb_intern_atom(xcb_connection, 0, strlen(#name), #name);
1118 #include "xcb_atoms.def"
1120 root_screen = xcb_aux_get_screen(xcb_connection, screen);
1121 xcb_root = root_screen->root;
1123 depth = root_screen->root_depth;
1124 colormap = root_screen->default_colormap;
1125 visual_type = xcb_aux_find_visual_by_attrs(root_screen, -1, 32);
1127 depth = xcb_aux_get_depth_of_visual(root_screen, visual_type->visual_id);
1128 colormap = xcb_generate_id(xcb_connection);
1129 xcb_void_cookie_t cm_cookie = xcb_create_colormap_checked(xcb_connection,
1130 XCB_COLORMAP_ALLOC_NONE,
1133 visual_type->visual_id);
1134 if (xcb_request_failed(cm_cookie, "Could not allocate colormap")) {
1138 visual_type = get_visualtype(root_screen);
1141 /* We draw the statusline to a seperate pixmap, because it looks the same on all bars and
1142 * this way, we can choose to crop it */
1143 xcb_pixmap_t statusline_id = xcb_generate_id(xcb_connection);
1144 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1148 root_screen->width_in_pixels,
1149 root_screen->height_in_pixels);
1150 cairo_surface_init(&statusline_surface, statusline_id, root_screen->width_in_pixels, root_screen->height_in_pixels);
1152 /* The various watchers to communicate with xcb */
1153 xcb_io = smalloc(sizeof(ev_io));
1154 xcb_prep = smalloc(sizeof(ev_prepare));
1155 xcb_chk = smalloc(sizeof(ev_check));
1157 ev_io_init(xcb_io, &xcb_io_cb, xcb_get_file_descriptor(xcb_connection), EV_READ);
1158 ev_prepare_init(xcb_prep, &xcb_prep_cb);
1159 ev_check_init(xcb_chk, &xcb_chk_cb);
1161 ev_io_start(main_loop, xcb_io);
1162 ev_prepare_start(main_loop, xcb_prep);
1163 ev_check_start(main_loop, xcb_chk);
1165 /* Now we get the atoms and save them in a nice data structure */
1168 char *path = root_atom_contents("I3_SOCKET_PATH", xcb_connection, screen);
1170 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer"))
1177 * Register for xkb keyevents. To grab modifiers without blocking other applications from receiving key events
1178 * involving that modifier, we sadly have to use xkb which is not yet fully supported
1182 void register_xkb_keyevents() {
1183 const xcb_query_extension_reply_t *extreply;
1184 extreply = xcb_get_extension_data(conn, &xcb_xkb_id);
1185 if (!extreply->present) {
1186 ELOG("xkb is not present on this server\n");
1189 DLOG("initializing xcb-xkb\n");
1190 xcb_xkb_use_extension(conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION);
1191 xcb_xkb_select_events(conn,
1192 XCB_XKB_ID_USE_CORE_KBD,
1193 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1195 XCB_XKB_EVENT_TYPE_STATE_NOTIFY,
1199 xkb_base = extreply->first_event;
1203 * Deregister from xkb keyevents.
1206 void deregister_xkb_keyevents() {
1207 xcb_xkb_select_events(conn,
1208 XCB_XKB_ID_USE_CORE_KBD,
1218 * Initialization which depends on 'config' being usable. Called after the
1219 * configuration has arrived.
1222 void init_xcb_late(char *fontname) {
1223 if (fontname == NULL)
1224 fontname = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
1227 font = load_font(fontname, true);
1229 DLOG("Calculated font height: %d\n", font.height);
1230 bar_height = font.height + 2 * logical_px(ws_voff_px);
1231 icon_size = bar_height - 2 * logical_px(config.tray_padding);
1233 if (config.separator_symbol)
1234 separator_symbol_width = predict_text_width(config.separator_symbol);
1236 xcb_flush(xcb_connection);
1238 if (config.hide_on_modifier == M_HIDE)
1239 register_xkb_keyevents();
1243 * Inform clients waiting for a new _NET_SYSTEM_TRAY that we took the
1247 static void send_tray_clientmessage(void) {
1248 uint8_t buffer[32] = {0};
1249 xcb_client_message_event_t *ev = (xcb_client_message_event_t *)buffer;
1251 ev->response_type = XCB_CLIENT_MESSAGE;
1252 ev->window = xcb_root;
1253 ev->type = atoms[MANAGER];
1255 ev->data.data32[0] = XCB_CURRENT_TIME;
1256 ev->data.data32[1] = tray_reply->atom;
1257 ev->data.data32[2] = selwin;
1259 xcb_send_event(xcb_connection,
1267 * Initializes tray support by requesting the appropriate _NET_SYSTEM_TRAY atom
1268 * for the X11 display we are running on, then acquiring the selection for this
1269 * atom. Afterwards, tray clients will send ClientMessages to our window.
1272 void init_tray(void) {
1273 DLOG("Initializing system tray functionality\n");
1274 /* request the tray manager atom for the X11 display we are running on */
1275 char atomname[strlen("_NET_SYSTEM_TRAY_S") + 11];
1276 snprintf(atomname, strlen("_NET_SYSTEM_TRAY_S") + 11, "_NET_SYSTEM_TRAY_S%d", screen);
1277 xcb_intern_atom_cookie_t tray_cookie;
1278 if (tray_reply == NULL)
1279 tray_cookie = xcb_intern_atom(xcb_connection, 0, strlen(atomname), atomname);
1281 /* tray support: we need a window to own the selection */
1282 selwin = xcb_generate_id(xcb_connection);
1283 uint32_t selmask = XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_COLORMAP;
1284 uint32_t selval[] = {root_screen->black_pixel, root_screen->black_pixel, 1, colormap};
1285 xcb_create_window(xcb_connection,
1292 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1293 visual_type->visual_id,
1297 uint32_t orientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
1299 xcb_change_property(xcb_connection,
1300 XCB_PROP_MODE_REPLACE,
1302 atoms[_NET_SYSTEM_TRAY_ORIENTATION],
1307 xcb_change_property(xcb_connection,
1308 XCB_PROP_MODE_REPLACE,
1310 atoms[_NET_SYSTEM_TRAY_VISUAL],
1314 &visual_type->visual_id);
1318 if (tray_reply == NULL) {
1319 if (!(tray_reply = xcb_intern_atom_reply(xcb_connection, tray_cookie, NULL))) {
1320 ELOG("Could not get atom %s\n", atomname);
1325 xcb_set_selection_owner(xcb_connection,
1330 /* Verify that we have the selection */
1331 xcb_get_selection_owner_cookie_t selcookie;
1332 xcb_get_selection_owner_reply_t *selreply;
1334 selcookie = xcb_get_selection_owner(xcb_connection, tray_reply->atom);
1335 if (!(selreply = xcb_get_selection_owner_reply(xcb_connection, selcookie, NULL))) {
1336 ELOG("Could not get selection owner for %s\n", atomname);
1340 if (selreply->owner != selwin) {
1341 ELOG("Could not set the %s selection. "
1342 "Maybe another tray is already running?\n",
1344 /* NOTE that this error is not fatal. We just can’t provide tray
1350 send_tray_clientmessage();
1354 * We need to set the _NET_SYSTEM_TRAY_COLORS atom on the tray selection window
1355 * to make GTK+ 3 applets with symbolic icons visible. If the colors are unset,
1356 * they assume a light background.
1357 * See also https://bugzilla.gnome.org/show_bug.cgi?id=679591
1360 void init_tray_colors(void) {
1361 /* Convert colors.bar_fg (#rrggbb) to 16-bit RGB */
1362 const char *bar_fg = (config.colors.bar_fg ? config.colors.bar_fg : "#FFFFFF");
1364 DLOG("Setting bar_fg = %s as _NET_SYSTEM_TRAY_COLORS\n", bar_fg);
1366 char strgroups[3][3] = {{bar_fg[1], bar_fg[2], '\0'},
1367 {bar_fg[3], bar_fg[4], '\0'},
1368 {bar_fg[5], bar_fg[6], '\0'}};
1369 const uint8_t r = strtol(strgroups[0], NULL, 16);
1370 const uint8_t g = strtol(strgroups[1], NULL, 16);
1371 const uint8_t b = strtol(strgroups[2], NULL, 16);
1373 const uint16_t r16 = ((uint16_t)r << 8) | r;
1374 const uint16_t g16 = ((uint16_t)g << 8) | g;
1375 const uint16_t b16 = ((uint16_t)b << 8) | b;
1377 const uint32_t tray_colors[12] = {
1378 r16, g16, b16, /* foreground color */
1379 r16, g16, b16, /* error color */
1380 r16, g16, b16, /* warning color */
1381 r16, g16, b16, /* success color */
1384 xcb_change_property(xcb_connection,
1385 XCB_PROP_MODE_REPLACE,
1387 atoms[_NET_SYSTEM_TRAY_COLORS],
1395 * Cleanup the xcb stuff.
1396 * Called once, before the program terminates.
1399 void clean_xcb(void) {
1402 SLIST_FOREACH(o_walk, outputs, slist) {
1403 destroy_window(o_walk);
1404 FREE(o_walk->trayclients);
1405 FREE(o_walk->workspaces);
1408 FREE_SLIST(outputs, i3_output);
1411 xcb_flush(xcb_connection);
1412 xcb_aux_sync(xcb_connection);
1413 xcb_disconnect(xcb_connection);
1415 ev_check_stop(main_loop, xcb_chk);
1416 ev_prepare_stop(main_loop, xcb_prep);
1417 ev_io_stop(main_loop, xcb_io);
1425 * Get the earlier requested atoms and save them in the prepared data structure
1428 void get_atoms(void) {
1429 xcb_intern_atom_reply_t *reply;
1430 #define ATOM_DO(name) \
1431 reply = xcb_intern_atom_reply(xcb_connection, atom_cookies[name], NULL); \
1432 if (reply == NULL) { \
1433 ELOG("Could not get atom %s\n", #name); \
1434 exit(EXIT_FAILURE); \
1436 atoms[name] = reply->atom; \
1439 #include "xcb_atoms.def"
1440 DLOG("Got atoms\n");
1444 * Reparents all tray clients of the specified output to the root window. This
1445 * is either used when shutting down, when an output appears (xrandr --output
1446 * VGA1 --off) or when the primary output changes.
1448 * Applications using the tray will start the protocol from the beginning again
1452 void kick_tray_clients(i3_output *output) {
1453 if (TAILQ_EMPTY(output->trayclients))
1456 trayclient *trayclient;
1457 while (!TAILQ_EMPTY(output->trayclients)) {
1458 trayclient = TAILQ_FIRST(output->trayclients);
1459 /* Unmap, then reparent (to root) the tray client windows */
1460 xcb_unmap_window(xcb_connection, trayclient->win);
1461 xcb_reparent_window(xcb_connection,
1467 /* We remove the trayclient right here. We might receive an UnmapNotify
1468 * event afterwards, but better safe than sorry. */
1469 TAILQ_REMOVE(output->trayclients, trayclient, tailq);
1472 /* Fake a DestroyNotify so that Qt re-adds tray icons.
1473 * We cannot actually destroy the window because then Qt will not restore
1474 * its event mask on the new window. */
1475 uint8_t buffer[32] = {0};
1476 xcb_destroy_notify_event_t *event = (xcb_destroy_notify_event_t *)buffer;
1478 event->response_type = XCB_DESTROY_NOTIFY;
1479 event->event = selwin;
1480 event->window = selwin;
1482 xcb_send_event(conn, false, selwin, XCB_EVENT_MASK_STRUCTURE_NOTIFY, (char *)event);
1484 send_tray_clientmessage();
1488 * Destroy the bar of the specified output
1491 void destroy_window(i3_output *output) {
1492 if (output == NULL) {
1495 if (output->bar.id == XCB_NONE) {
1499 kick_tray_clients(output);
1500 xcb_destroy_window(xcb_connection, output->bar.id);
1501 output->bar.id = XCB_NONE;
1505 * Reallocate the statusline buffer
1508 void realloc_sl_buffer(void) {
1509 DLOG("Re-allocating statusline buffer, statusline_width = %d, root_screen->width_in_pixels = %d\n",
1510 statusline_width, root_screen->width_in_pixels);
1511 xcb_free_pixmap(xcb_connection, statusline_surface.id);
1512 cairo_surface_free(&statusline_surface);
1514 xcb_pixmap_t statusline_id = xcb_generate_id(xcb_connection);
1515 xcb_void_cookie_t sl_pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1519 MAX(root_screen->width_in_pixels, statusline_width),
1521 cairo_surface_init(&statusline_surface, statusline_id, root_screen->width_in_pixels, root_screen->height_in_pixels);
1523 if (xcb_request_failed(sl_pm_cookie, "Could not allocate statusline buffer"))
1527 /* Strut partial tells i3 where to reserve space for i3bar. This is determined
1528 * by the `position` bar config directive. */
1529 xcb_void_cookie_t config_strut_partial(i3_output *output) {
1530 /* A local struct to save the strut_partial property */
1536 uint32_t left_start_y;
1537 uint32_t left_end_y;
1538 uint32_t right_start_y;
1539 uint32_t right_end_y;
1540 uint32_t top_start_x;
1542 uint32_t bottom_start_x;
1543 uint32_t bottom_end_x;
1544 } __attribute__((__packed__)) strut_partial;
1545 memset(&strut_partial, 0, sizeof(strut_partial));
1547 switch (config.position) {
1551 strut_partial.top = bar_height;
1552 strut_partial.top_start_x = output->rect.x;
1553 strut_partial.top_end_x = output->rect.x + output->rect.w;
1556 strut_partial.bottom = bar_height;
1557 strut_partial.bottom_start_x = output->rect.x;
1558 strut_partial.bottom_end_x = output->rect.x + output->rect.w;
1561 return xcb_change_property(xcb_connection,
1562 XCB_PROP_MODE_REPLACE,
1564 atoms[_NET_WM_STRUT_PARTIAL],
1572 * Reconfigure all bars and create new bars for recently activated outputs
1575 void reconfig_windows(bool redraw_bars) {
1578 static bool tray_configured = false;
1581 SLIST_FOREACH(walk, outputs, slist) {
1582 if (!walk->active) {
1583 /* If an output is not active, we destroy its bar */
1584 /* FIXME: Maybe we rather want to unmap? */
1585 DLOG("Destroying window for output %s\n", walk->name);
1586 destroy_window(walk);
1589 if (walk->bar.id == XCB_NONE) {
1590 DLOG("Creating window for output %s\n", walk->name);
1592 xcb_window_t bar_id = xcb_generate_id(xcb_connection);
1593 xcb_pixmap_t buffer_id = xcb_generate_id(xcb_connection);
1594 mask = XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL | XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP;
1596 values[0] = colors.bar_bg.colorpixel;
1597 values[1] = root_screen->black_pixel;
1598 /* If hide_on_modifier is set to hide or invisible mode, i3 is not supposed to manage our bar windows */
1599 values[2] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1600 /* We enable the following EventMask fields:
1601 * EXPOSURE, to get expose events (we have to re-draw then)
1602 * SUBSTRUCTURE_REDIRECT, to get ConfigureRequests when the tray
1603 * child windows use ConfigureWindow
1604 * BUTTON_PRESS, to handle clicks on the workspace buttons
1606 values[3] = XCB_EVENT_MASK_EXPOSURE |
1607 XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
1608 XCB_EVENT_MASK_BUTTON_PRESS;
1609 if (config.hide_on_modifier == M_DOCK) {
1610 /* If the bar is normally visible, catch visibility change events to suspend
1611 * the status process when the bar is obscured by full-screened windows. */
1612 values[3] |= XCB_EVENT_MASK_VISIBILITY_CHANGE;
1613 walk->visible = true;
1615 values[4] = colormap;
1617 xcb_void_cookie_t win_cookie = xcb_create_window_checked(xcb_connection,
1621 walk->rect.x, walk->rect.y + walk->rect.h - bar_height,
1622 walk->rect.w, bar_height,
1624 XCB_WINDOW_CLASS_INPUT_OUTPUT,
1625 visual_type->visual_id,
1629 /* The double-buffer we use to render stuff off-screen */
1630 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1637 /* Set the WM_CLASS and WM_NAME (we don't need UTF-8) atoms */
1638 xcb_void_cookie_t class_cookie;
1639 class_cookie = xcb_change_property(xcb_connection,
1640 XCB_PROP_MODE_REPLACE,
1645 (strlen("i3bar") + 1) * 2,
1649 sasprintf(&name, "i3bar for output %s", walk->name);
1650 xcb_void_cookie_t name_cookie;
1651 name_cookie = xcb_change_property(xcb_connection,
1652 XCB_PROP_MODE_REPLACE,
1661 /* We want dock windows (for now). When override_redirect is set, i3 is ignoring
1663 xcb_void_cookie_t dock_cookie = xcb_change_property(xcb_connection,
1664 XCB_PROP_MODE_REPLACE,
1666 atoms[_NET_WM_WINDOW_TYPE],
1670 (unsigned char *)&atoms[_NET_WM_WINDOW_TYPE_DOCK]);
1672 cairo_surface_init(&walk->bar, bar_id, walk->rect.w, bar_height);
1673 cairo_surface_init(&walk->buffer, buffer_id, walk->rect.w, bar_height);
1675 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1677 /* We finally map the bar (display it on screen), unless the modifier-switch is on */
1678 xcb_void_cookie_t map_cookie;
1679 if (config.hide_on_modifier == M_DOCK) {
1680 map_cookie = xcb_map_window_checked(xcb_connection, bar_id);
1683 if (xcb_request_failed(win_cookie, "Could not create window") ||
1684 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1685 xcb_request_failed(dock_cookie, "Could not set dock mode") ||
1686 xcb_request_failed(class_cookie, "Could not set WM_CLASS") ||
1687 xcb_request_failed(name_cookie, "Could not set WM_NAME") ||
1688 xcb_request_failed(strut_cookie, "Could not set strut") ||
1689 ((config.hide_on_modifier == M_DOCK) && xcb_request_failed(map_cookie, "Could not map window"))) {
1693 const char *tray_output = (config.tray_output ? config.tray_output : SLIST_FIRST(outputs)->name);
1694 if (!tray_configured && strcasecmp(tray_output, "none") != 0) {
1695 /* Configuration sanity check: ensure this i3bar instance handles the output on
1696 * which the tray should appear (e.g. don’t initialize a tray if tray_output ==
1697 * VGA-1 but output == [HDMI-1]).
1700 SLIST_FOREACH(output, outputs, slist) {
1701 if (strcasecmp(output->name, tray_output) == 0 ||
1702 (strcasecmp(tray_output, "primary") == 0 && output->primary)) {
1707 tray_configured = true;
1710 /* We already have a bar, so we just reconfigure it */
1711 mask = XCB_CONFIG_WINDOW_X |
1712 XCB_CONFIG_WINDOW_Y |
1713 XCB_CONFIG_WINDOW_WIDTH |
1714 XCB_CONFIG_WINDOW_HEIGHT |
1715 XCB_CONFIG_WINDOW_STACK_MODE;
1716 values[0] = walk->rect.x;
1717 if (config.position == POS_TOP)
1718 values[1] = walk->rect.y;
1720 values[1] = walk->rect.y + walk->rect.h - bar_height;
1721 values[2] = walk->rect.w;
1722 values[3] = bar_height;
1723 values[4] = XCB_STACK_MODE_ABOVE;
1725 DLOG("Reconfiguring strut partial property for output %s\n", walk->name);
1726 xcb_void_cookie_t strut_cookie = config_strut_partial(walk);
1728 DLOG("Destroying buffer for output %s\n", walk->name);
1729 xcb_free_pixmap(xcb_connection, walk->buffer.id);
1731 DLOG("Reconfiguring window for output %s to %d,%d\n", walk->name, values[0], values[1]);
1732 xcb_void_cookie_t cfg_cookie = xcb_configure_window_checked(xcb_connection,
1737 mask = XCB_CW_OVERRIDE_REDIRECT;
1738 values[0] = (config.hide_on_modifier == M_DOCK ? 0 : 1);
1739 DLOG("Changing window attribute override_redirect for output %s to %d\n", walk->name, values[0]);
1740 xcb_void_cookie_t chg_cookie = xcb_change_window_attributes(xcb_connection,
1745 DLOG("Recreating buffer for output %s\n", walk->name);
1746 xcb_void_cookie_t pm_cookie = xcb_create_pixmap_checked(xcb_connection,
1753 cairo_surface_free(&(walk->bar));
1754 cairo_surface_free(&(walk->buffer));
1755 cairo_surface_init(&(walk->bar), walk->bar.id, walk->rect.w, bar_height);
1756 cairo_surface_init(&(walk->buffer), walk->buffer.id, walk->rect.w, bar_height);
1758 xcb_void_cookie_t map_cookie, umap_cookie;
1760 /* Unmap the window, and draw it again when in dock mode */
1761 umap_cookie = xcb_unmap_window_checked(xcb_connection, walk->bar.id);
1762 if (config.hide_on_modifier == M_DOCK) {
1764 map_cookie = xcb_map_window_checked(xcb_connection, walk->bar.id);
1769 if (config.hide_on_modifier == M_HIDE) {
1770 /* Switching to hide mode, register for keyevents */
1771 register_xkb_keyevents();
1773 /* Switching to dock/invisible mode, deregister from keyevents */
1774 deregister_xkb_keyevents();
1778 if (xcb_request_failed(cfg_cookie, "Could not reconfigure window") ||
1779 xcb_request_failed(chg_cookie, "Could not change window") ||
1780 xcb_request_failed(pm_cookie, "Could not create pixmap") ||
1781 xcb_request_failed(strut_cookie, "Could not set strut") ||
1782 (redraw_bars && (xcb_request_failed(umap_cookie, "Could not unmap window") ||
1783 (config.hide_on_modifier == M_DOCK && xcb_request_failed(map_cookie, "Could not map window"))))) {
1791 * Render the bars, with buttons and statusline
1794 void draw_bars(bool unhide) {
1795 DLOG("Drawing bars...\n");
1796 int workspace_width = 0;
1797 /* Is the currently-rendered statusline using short_text items? */
1798 bool rendered_statusline_is_short = false;
1800 refresh_statusline(false);
1802 i3_output *outputs_walk;
1803 SLIST_FOREACH(outputs_walk, outputs, slist) {
1804 if (!outputs_walk->active) {
1805 DLOG("Output %s inactive, skipping...\n", outputs_walk->name);
1808 if (outputs_walk->bar.id == XCB_NONE) {
1809 /* Oh shit, an active output without an own bar. Create it now! */
1810 reconfig_windows(false);
1813 /* First things first: clear the backbuffer */
1814 cairo_save(outputs_walk->buffer.cr);
1815 cairo_set_source_color(&(outputs_walk->buffer), colors.bar_bg);
1816 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1817 cairo_paint(outputs_walk->buffer.cr);
1818 cairo_restore(outputs_walk->buffer.cr);
1820 if (!config.disable_ws) {
1822 TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
1823 DLOG("Drawing button for WS %s at x = %d, len = %d\n",
1824 i3string_as_utf8(ws_walk->name), workspace_width, ws_walk->name_width);
1825 color_t fg_color = colors.inactive_ws_fg;
1826 color_t bg_color = colors.inactive_ws_bg;
1827 color_t border_color = colors.inactive_ws_border;
1828 if (ws_walk->visible) {
1829 if (!ws_walk->focused) {
1830 fg_color = colors.active_ws_fg;
1831 bg_color = colors.active_ws_bg;
1832 border_color = colors.active_ws_border;
1834 fg_color = colors.focus_ws_fg;
1835 bg_color = colors.focus_ws_bg;
1836 border_color = colors.focus_ws_border;
1839 if (ws_walk->urgent) {
1840 DLOG("WS %s is urgent!\n", i3string_as_utf8(ws_walk->name));
1841 fg_color = colors.urgent_ws_fg;
1842 bg_color = colors.urgent_ws_bg;
1843 border_color = colors.urgent_ws_border;
1847 cairo_save(outputs_walk->buffer.cr);
1848 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1850 /* Draw the border of the button. */
1851 cairo_set_source_color(&(outputs_walk->buffer), border_color);
1852 cairo_rectangle(outputs_walk->buffer.cr, workspace_width, logical_px(1),
1853 ws_walk->name_width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1854 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1));
1855 cairo_fill(outputs_walk->buffer.cr);
1857 /* Draw the inside of the button. */
1858 cairo_set_source_color(&(outputs_walk->buffer), bg_color);
1859 cairo_rectangle(outputs_walk->buffer.cr, workspace_width + logical_px(1), 2 * logical_px(1),
1860 ws_walk->name_width + 2 * logical_px(ws_hoff_px),
1861 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1));
1862 cairo_fill(outputs_walk->buffer.cr);
1864 cairo_restore(outputs_walk->buffer.cr);
1866 set_font_colors(outputs_walk->buffer.gc, fg_color.colorpixel, bg_color.colorpixel);
1867 draw_text(ws_walk->name, outputs_walk->buffer.id, outputs_walk->buffer.gc, visual_type,
1868 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1869 logical_px(ws_voff_px),
1870 ws_walk->name_width);
1872 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + ws_walk->name_width;
1873 if (TAILQ_NEXT(ws_walk, tailq) != NULL)
1874 workspace_width += logical_px(ws_spacing_px);
1878 if (binding.name && !config.disable_binding_mode_indicator) {
1879 workspace_width += logical_px(ws_spacing_px);
1881 color_t fg_color = colors.binding_mode_fg;
1882 color_t bg_color = colors.binding_mode_bg;
1884 cairo_save(outputs_walk->buffer.cr);
1885 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1887 cairo_set_source_color(&(outputs_walk->buffer), colors.binding_mode_border);
1888 cairo_rectangle(outputs_walk->buffer.cr, workspace_width, logical_px(1),
1889 binding.width + 2 * logical_px(ws_hoff_px) + 2 * logical_px(1),
1890 font.height + 2 * logical_px(ws_voff_px) - 2 * logical_px(1));
1891 cairo_fill(outputs_walk->buffer.cr);
1893 cairo_set_source_color(&(outputs_walk->buffer), bg_color);
1894 cairo_rectangle(outputs_walk->buffer.cr, workspace_width + logical_px(1), 2 * logical_px(1),
1895 binding.width + 2 * logical_px(ws_hoff_px),
1896 font.height + 2 * logical_px(ws_voff_px) - 4 * logical_px(1));
1897 cairo_fill(outputs_walk->buffer.cr);
1899 cairo_restore(outputs_walk->buffer.cr);
1901 set_font_colors(outputs_walk->buffer.gc, fg_color.colorpixel, bg_color.colorpixel);
1902 draw_text(binding.name,
1903 outputs_walk->buffer.id,
1904 outputs_walk->buffer.gc,
1906 workspace_width + logical_px(ws_hoff_px) + logical_px(1),
1907 logical_px(ws_voff_px),
1911 workspace_width += 2 * logical_px(ws_hoff_px) + 2 * logical_px(1) + binding.width;
1914 if (!TAILQ_EMPTY(&statusline_head)) {
1915 DLOG("Printing statusline!\n");
1917 int tray_width = get_tray_width(outputs_walk->trayclients);
1918 uint32_t max_statusline_width = outputs_walk->rect.w - workspace_width - tray_width - 2 * logical_px(sb_hoff_px);
1920 /* If the statusline is too long, try to use short texts. */
1921 if (statusline_width > max_statusline_width) {
1922 /* If the currently rendered statusline is long, render a short status line */
1923 refresh_statusline(true);
1924 rendered_statusline_is_short = true;
1925 } else if (rendered_statusline_is_short) {
1926 /* If the currently rendered statusline is short, render a long status line */
1927 refresh_statusline(false);
1928 rendered_statusline_is_short = false;
1931 /* Luckily we already prepared a seperate pixmap containing the rendered
1932 * statusline, we just have to copy the relevant parts to the relevant
1934 int visible_statusline_width = MIN(statusline_width, max_statusline_width);
1935 int x_src = (int16_t)(statusline_width - visible_statusline_width);
1936 int x_dest = (int16_t)(outputs_walk->rect.w - tray_width - logical_px(sb_hoff_px) - visible_statusline_width);
1938 cairo_save(outputs_walk->buffer.cr);
1939 cairo_set_operator(outputs_walk->buffer.cr, CAIRO_OPERATOR_SOURCE);
1940 cairo_set_source_surface(outputs_walk->buffer.cr, statusline_surface.surface, x_dest - x_src, 0);
1941 cairo_rectangle(outputs_walk->buffer.cr, x_dest, 0, (int16_t)visible_statusline_width, (int16_t)bar_height);
1942 cairo_fill(outputs_walk->buffer.cr);
1943 cairo_restore(outputs_walk->buffer.cr);
1946 workspace_width = 0;
1949 /* Assure the bar is hidden/unhidden according to the specified hidden_state and mode */
1951 config.hidden_state == S_SHOW ||
1954 } else if (config.hide_on_modifier == M_HIDE) {
1962 * Redraw the bars, i.e. simply copy the buffer to the barwindow
1965 void redraw_bars(void) {
1966 i3_output *outputs_walk;
1967 SLIST_FOREACH(outputs_walk, outputs, slist) {
1968 if (!outputs_walk->active) {
1972 cairo_save(outputs_walk->bar.cr);
1973 cairo_set_operator(outputs_walk->bar.cr, CAIRO_OPERATOR_SOURCE);
1974 cairo_set_source_surface(outputs_walk->bar.cr, outputs_walk->buffer.surface, 0, 0);
1975 cairo_rectangle(outputs_walk->bar.cr, 0, 0, outputs_walk->rect.w, outputs_walk->rect.h);
1976 cairo_fill(outputs_walk->bar.cr);
1977 cairo_restore(outputs_walk->bar.cr);
1979 xcb_flush(xcb_connection);
1984 * Set the current binding mode
1987 void set_current_mode(struct mode *current) {
1988 I3STRING_FREE(binding.name);
1990 activated_mode = binding.name != NULL;